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Turf.js distance first try w/ d3 map topojson data
Raw
readme.md

First attempt at using turf.js client side. Not really terribly useful as is but I had some ideas for setting up the distance information better (w/out commas at the beginning of lines) and with hover events causing their corresponding icons on the map to so something or be highlighted with a like color. For no commas I could have done a good old data or datum enter deal.

This file uses the turf.min.js file so I could have gotten any functionality out of turf I wanted in this page though I only used a one small part of it. I guess the big thing I didn't see straight up in the documentation for turf.js was how to call one of the functions from it's library of them.

It was really quite easy you just do turf.thefunction(args) as in:

turf.distance(point1,point2,unit)

It's so easy and I should start in on the wiki explaining how to do this amazingness client side. With d3 it was cool to get the distances in radians but this is quick nice and easy and returns something I have some conception of rather than radians. I was a little worried that my distances weren't correct after checking the first few google results for a distance but a viable looking source matched up close to exactly w/ my results. http://dateandtime.info/distance.php?id1=3469058&id2=3390760 It's also the first one I found which explained at least a little bit about the calculations so I trust it more than the other ones which I have no idea how the distance was calculated.

Now I want to learn how to use turf.js for something actually useful maybe and you should too and share it with me.

Raw
index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
svg{
background:#2379d5;
}
.texto{
font-size:13px;
}
.pico{
height:19;
width:20;
}
/* CSS goes here. */
.coun { fill: #27ae60;
opacity:.6;
stroke:black;
stroke-width:.8; }
.grat{
stroke:grey;
stroke-width:1px
}
.outside{
fill: grey;
opacity:.6;
stroke:black;
stroke-width:.8;
}
.city{
fill:#fad959;
r:10;
}
.outer{
fill:black
}
.city:hover{
fill:blue
}
.chams{
height:100;
width:100;
}
.rivs{
stroke:#c6dbef;
stroke-width:2.5;
fill:none;
//opacity:.5;
}
.keyer{
position:absolute;
background:#d9d9d9;
height:120px;
width:160px;
}
.troph{
position:absolute;
margin-top:-20px;
margin-left:40px
}
.distan {
position:absolute;
margin-left:605px;
}
.distan p {
font-size:.75em;
}
.highli{
width:25px;
height:25px;
position:absolute;
}
</style>
<body>
<div class='highli'></div>
<div class='keyer'></div>
<div class='distan'></div>
<script src="http://d3js.org/d3.v3.js"></script>
<script src="http://d3js.org/topojson.v1.js"></script>
<script src="turf.min.js" charset="utf-8"></script>
<script>
var height = 475;
var width = 600;
var projection = d3.geo.albers()
.center([-54,-8.4])
.parallels( [11.5,-38])
.scale(550)
//rotating is long lat and around the origin
.rotate([55,-5,-5])
.translate([width/2 - 450,height/2 -40])
var graticule = d3.geo.graticule();
var svg = d3.select('body').append('svg').attr('width', width).attr('height', height);
var path = d3.geo.path()
.projection(projection);
svg.append('path')
.datum(graticule)
.attr('class', "grat")
.attr('d',path)
.attr('fill','none')
;
// d3.select('path') .append('g')
var somewor = 'click on an icon to see </br> distances to other cities';
d3.json('/mpmckenna8/raw/fcb2c2306c2bf249b719/brazilWor.json', function(err, world){
if(err){console.log(err)}
svg.selectAll('path')
.data(topojson.feature(world,world.objects.countries110).features).enter().append('path')
.attr('d',path)
.on('hover',function(){
// console.log(this)
// return this.style('fill','purple');
})
.attr('class',function(d,i){
// console.log(i + 'this is for the countries class');
return 'coun'})
d3.selectAll('.coun')
.attr('class',function(d,i){
// console.log(i);
// The country data doesn't have any properties so I used the index # for brazil since it's the only thing I was going to change.
if(i===21){
return 'coun'
}
else{
return 'outside'
}
})
.on('click', function(d,i){
console.log(i);
})
d3.json('amaR.geojson',function(err,river){
svg.append('path')
// .append('g')
.datum(river)
.attr('d',path)
.attr('class', function(d){
return 'rivs'
})
var citi = topojson.feature(world,world.objects.brazilCit).features
svg.selectAll('.shadows')
.data(citi)
.enter()
.append('circle')
.attr('d',path)
.attr('class', 'shadows')
.attr('r',6)
.attr('cx',2)
.attr('cy',2)
.attr("transform", function(d) { return "translate(" + projection(d.geometry.coordinates) + ")"; })
.attr('opacity',.3)
.attr('fill', '#fad959')
//console.log(citi)
//adding stuff all at once w/ datum like w/ graticule everthing it going to be the same.
// So the anonymous function in .attr('class',funct) is worthless more or less because it's all just one big thing.
svg.selectAll('.city')
.data(citi)
.enter()
.append('image')
.attr('d',path)
.attr('class',function(d){
// console.log(d.properties.coun)
if(d.properties.coun ==="BRA"){
return 'city'
}
else{
return 'outer'
}
})
.attr("transform", function(d) { return "translate(" + projection(d.geometry.coordinates) + ")"; })
//this is where the river was
//adding my hightlight rectangle, need to change opacity to 0 to start when ready
svg.append('rect')
//.attr('d',path)
.attr('height',30)
.attr('width', 30).attr('fill', 'red').attr('opacity', 0).attr('class', 'heli')
var bigCit = 0;
var cupCit = []
d3.selectAll('.city')
.filter(function(d,i){
// console.log(d.properties)
var namer = d.properties.name;
return namer == 'Fortaleza' || namer == 'Brasilia'|| namer =='Rio de Janeiro'
|| namer == 'Sao Paulo' || namer == 'Belo Horizonte' || namer == 'Salvador'
|| namer == 'Cuiaba' || namer == 'Manaus' || (namer == 'Natal' && d.properties.pop > 1000000) || namer == 'Porto Alegre'
|| namer == 'Recife' || namer == 'Curitiba'
})
.attr('xlink:href',function(d,i){
cupCit.push(d);
//console.log(i);
// this is the first time i did a turf in a client thing
// console.log(d.properties.name + ' is ' + turf.distance(d,citi[6],'miles'));
if (d.properties.name =='Rio de Janeiro'){return '/mpmckenna8/raw/b87df1c44243aa1575cb/icon_51440.svg'}
else{
return ('/mpmckenna8/raw/b87df1c44243aa1575cb/icon_10684.svg')}})
.attr('height', function(d){
return '19'
})
.attr('width', '29')
// while adding an image to an svg these are the coordinates i think of the top left
.attr('x', '-14.5')
.attr('y', '-9.5')
.on('click',
function(d,i){
//console.log(d.properties.name)
console.log(this)
d3.selectAll('.texto')
.text(d.properties.name);
d3.select('.distan')
.html(function(){
var copar = [];
//console.log(cupCit);
cupCit.forEach(function(opy){
if (opy != d){
opy.properties.distance = turf.distance(d,opy,'kilometers');
// console.log(opy.properties.name + ' ' + turf.distance(d,opy,'kilometers') + ' km');
copar.push( opy.properties.name + ' ' + turf.distance(d,opy,'kilometers') + ' km</br>');
console.log(opy.properties.distance)
}
})
// can do much better than just doing toString() on the array, like sort it based on difference and maybe label stuff or draw lines.
return copar.toString();
})
.attr('class','distan')
d3.select('.heli')
.attr("transform", function() {
console.log(d)
return "translate(" + projection(d.geometry.coordinates) + ")"; })
.attr('x', -15)
.attr('y',-15)
.attr('opacity',.8)
})
.attr('class', function(d){
if(d.properties.name == 'Rio de Janeiro'){
return 'chams'
}
else{
return 'pico'}
})
d3.select('.chams')
.attr('height',40)
.attr('width', 40)
.attr('y',-20)
console.log(bigCit)
})
})
// console.log(projection([-54,-8.4]))
d3.select('.keyer')
.style('margin-left', '415px')
.style('margin-top', '20px')
.append('html')
.html('<p>World Cup 2014</p><p>Brazil<img src=\'/mpmckenna8/raw/91cb9a5bc530bca95fc8/trophy.png\' class=\'troph\'/></p><p class=\'texto\'>'+somewor+'</p>')
// to add the image in the html element <img src=\'./WCtrophy\/trophy.png\' />
</script>
</body>
Raw
turf.min.js
!function(e){if("object"==typeof exports)module.exports=e();else if("function"==typeof define&&define.amd)define(e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.turf=e()}}(function(){var define,module,exports;return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}({1:[function(_dereq_,module,exports){module.exports={isClockwise:_dereq_("./lib/isClockwise"),area:_dereq_("./lib/area"),near:_dereq_("./lib/near"),isolines:_dereq_("./lib/isolines"),isobands:_dereq_("./lib/isobands"),merge:_dereq_("./lib/merge"),convex:_dereq_("./lib/convex"),donuts:_dereq_("./lib/donuts"),within:_dereq_("./lib/within"),concave:_dereq_("./lib/concave"),count:_dereq_("./lib/count"),erase:_dereq_("./lib/erase"),variance:_dereq_("./lib/variance"),deviation:_dereq_("./lib/deviation"),median:_dereq_("./lib/median"),min:_dereq_("./lib/min"),max:_dereq_("./lib/max"),aggregate:_dereq_("./lib/aggregate"),flip:_dereq_("./lib/flip"),simplify:_dereq_("./lib/simplify"),sum:_dereq_("./lib/sum"),average:_dereq_("./lib/average"),topo:_dereq_("./lib/topo"),bezier:_dereq_("./lib/bezier"),tag:_dereq_("./lib/tag"),size:_dereq_("./lib/size"),sample:_dereq_("./lib/sample"),jenks:_dereq_("./lib/jenks"),quantile:_dereq_("./lib/quantile"),save:_dereq_("./lib/save"),envelope:_dereq_("./lib/envelope"),square:_dereq_("./lib/square"),midpoint:_dereq_("./lib/midpoint"),buffer:_dereq_("./lib/buffer"),center:_dereq_("./lib/center"),centroid:_dereq_("./lib/centroid"),combine:_dereq_("./lib/combine"),contour:_dereq_("./lib/contour"),distance:_dereq_("./lib/distance"),explode:_dereq_("./lib/explode"),extent:_dereq_("./lib/extent"),bboxPolygon:_dereq_("./lib/bboxPolygon"),featurecollection:_dereq_("./lib/featurecollection"),filter:_dereq_("./lib/filter"),grid:_dereq_("./lib/grid"),inside:_dereq_("./lib/inside"),intersect:_dereq_("./lib/intersect"),linestring:_dereq_("./lib/linestring"),load:_dereq_("./lib/load"),nearest:_dereq_("./lib/nearest"),planepoint:_dereq_("./lib/planepoint"),point:_dereq_("./lib/point"),polygon:_dereq_("./lib/polygon"),quantile:_dereq_("./lib/quantile"),reclass:_dereq_("./lib/reclass"),remove:_dereq_("./lib/remove"),tin:_dereq_("./lib/tin"),union:_dereq_("./lib/union")}},{"./lib/aggregate":2,"./lib/area":3,"./lib/average":4,"./lib/bboxPolygon":5,"./lib/bezier":6,"./lib/buffer":7,"./lib/center":8,"./lib/centroid":9,"./lib/combine":10,"./lib/concave":11,"./lib/contour":12,"./lib/convex":13,"./lib/count":14,"./lib/deviation":15,"./lib/distance":16,"./lib/donuts":17,"./lib/envelope":18,"./lib/erase":19,"./lib/explode":20,"./lib/extent":21,"./lib/featurecollection":22,"./lib/filter":23,"./lib/flip":24,"./lib/grid":25,"./lib/inside":26,"./lib/intersect":27,"./lib/isClockwise":28,"./lib/isobands":29,"./lib/isolines":30,"./lib/jenks":31,"./lib/linestring":32,"./lib/load":33,"./lib/max":34,"./lib/median":35,"./lib/merge":36,"./lib/midpoint":37,"./lib/min":38,"./lib/near":39,"./lib/nearest":40,"./lib/planepoint":41,"./lib/point":42,"./lib/polygon":43,"./lib/quantile":44,"./lib/reclass":45,"./lib/remove":46,"./lib/sample":47,"./lib/save":48,"./lib/simplify":49,"./lib/size":50,"./lib/square":51,"./lib/sum":52,"./lib/tag":53,"./lib/tin":54,"./lib/topo":55,"./lib/union":56,"./lib/variance":57,"./lib/within":58}],2:[function(_dereq_,module,exports){var _=_dereq_("lodash");var t={};t.average=_dereq_("./average");t.sum=_dereq_("./sum");t.median=_dereq_("./median");t.min=_dereq_("./min");t.max=_dereq_("./max");t.deviation=_dereq_("./deviation");t.variance=_dereq_("./variance");t.count=_dereq_("./count");module.exports=function(polygons,points,aggregations,done){function isAggregationOperation(operation){return operation==="average"||operation==="sum"||operation==="median"||operation==="min"||operation==="max"||operation==="deviation"||operation==="variance"||operation==="count"}done=done||function(){};for(var i=0,len=aggregations.length;i<len;i++){var agg=aggregations[i],operation=agg.aggregation,unrecognizedError;if(isAggregationOperation(operation)){if(operation==="count"){polygons=t[operation](polygons,points,agg.outField)}else{polygons=t[operation](polygons,points,agg.inField,agg.outField)}}else{unrecognizedError=new Error('"'+operation+'" is not a recognized aggregation operation.');done(err);return err}}done(null,polygons);return polygons}},{"./average":4,"./count":14,"./deviation":15,"./max":34,"./median":35,"./min":38,"./sum":52,"./variance":57,lodash:66}],3:[function(_dereq_,module,exports){var _=_dereq_("lodash");module.exports=function(feature,done){}},{lodash:66}],4:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),ss=_dereq_("simple-statistics");t.inside=_dereq_("./inside");module.exports=function(polyFC,ptFC,inField,outField,done){done=done||function(){};_.each(polyFC.features,function(poly){if(!poly.properties){poly.properties={}}var values=[];_.each(ptFC.features,function(pt){if(t.inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=ss.average(values)});done(null,polyFC);return polyFC}},{"./inside":26,lodash:66,"simple-statistics":67}],5:[function(_dereq_,module,exports){var t={};var point=_dereq_("../lib/point"),polygon=_dereq_("../lib/polygon");t.point=point;t.polygon=polygon;module.exports=function(bbox,done){var lowLeft=t.point(bbox[0],bbox[1]);var topLeft=t.point(bbox[0],bbox[3]);var topRight=t.point(bbox[2],bbox[3]);var lowRight=t.point(bbox[2],bbox[1]);var poly=t.polygon([[lowLeft.geometry.coordinates,lowRight.geometry.coordinates,topRight.geometry.coordinates,topLeft.geometry.coordinates]]);done=done||function(){};done(null,poly);return poly}},{"../lib/point":42,"../lib/polygon":43}],6:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash");t.linestring=_dereq_("./linestring");module.exports=function(line,resolution,intensity,done){var lineOut=t.linestring([]);done=done||function(){};lineOut.properties=line.properties;pts=[];_.each(line.geometry.coordinates,function(pt){pts.push({x:pt[0],y:pt[1]})});var spline=new Spline({points:pts,duration:resolution,sharpness:intensity});for(var i=0;i<spline.duration;i+=10){var pos=spline.pos(i);if(Math.floor(i/100)%2==0)lineOut.geometry.coordinates.push([pos.x,pos.y])}done(null,lineOut);return lineOut};Spline=function(options){this.points=options.points||[];this.duration=options.duration||1e4;this.sharpness=options.sharpness||.85;this.centers=[];this.controls=[];this.stepLength=options.stepLength||60;this.length=this.points.length;this.delay=0;for(var i=0;i<this.length;i++)this.points[i].z=this.points[i].z||0;for(var i=0;i<this.length-1;i++){var p1=this.points[i];var p2=this.points[i+1];this.centers.push({x:(p1.x+p2.x)/2,y:(p1.y+p2.y)/2,z:(p1.z+p2.z)/2})}this.controls.push([this.points[0],this.points[0]]);for(var i=0;i<this.centers.length-1;i++){var p1=this.centers[i];var p2=this.centers[i+1];var dx=this.points[i+1].x-(this.centers[i].x+this.centers[i+1].x)/2;var dy=this.points[i+1].y-(this.centers[i].y+this.centers[i+1].y)/2;var dz=this.points[i+1].z-(this.centers[i].y+this.centers[i+1].z)/2;this.controls.push([{x:(1-this.sharpness)*this.points[i+1].x+this.sharpness*(this.centers[i].x+dx),y:(1-this.sharpness)*this.points[i+1].y+this.sharpness*(this.centers[i].y+dy),z:(1-this.sharpness)*this.points[i+1].z+this.sharpness*(this.centers[i].z+dz)},{x:(1-this.sharpness)*this.points[i+1].x+this.sharpness*(this.centers[i+1].x+dx),y:(1-this.sharpness)*this.points[i+1].y+this.sharpness*(this.centers[i+1].y+dy),z:(1-this.sharpness)*this.points[i+1].z+this.sharpness*(this.centers[i+1].z+dz)}])}this.controls.push([this.points[this.length-1],this.points[this.length-1]]);this.steps=this.cacheSteps(this.stepLength);return this};Spline.prototype.cacheSteps=function(mindist){var steps=[];var laststep=this.pos(0);steps.push(0);for(var t=0;t<this.duration;t+=10){var step=this.pos(t);var dist=Math.sqrt((step.x-laststep.x)*(step.x-laststep.x)+(step.y-laststep.y)*(step.y-laststep.y)+(step.z-laststep.z)*(step.z-laststep.z));if(dist>mindist){steps.push(t);laststep=step}}return steps};Spline.prototype.vector=function(t){var p1=this.pos(t+10);var p2=this.pos(t-10);return{angle:180*Math.atan2(p1.y-p2.y,p1.x-p2.x)/3.14,speed:Math.sqrt((p2.x-p1.x)*(p2.x-p1.x)+(p2.y-p1.y)*(p2.y-p1.y)+(p2.z-p1.z)*(p2.z-p1.z))}};Spline.prototype.drawControlPoints=function(ctx,color){ctx.fillStyle=color||"#f60";ctx.strokeStyle="#fff";ctx.lineWidth=2;for(var i=0;i<this.length;i++){var p=this.points[i];var c1=this.controls[i][0];var c2=this.controls[i][1];ctx.beginPath();ctx.moveTo(c1.x,c1.y);ctx.lineTo(p.x,p.y);ctx.lineTo(c2.x,c2.y);ctx.stroke();ctx.beginPath();ctx.arc(c1.x,c1.y,3,0,2*Math.PI,false);ctx.fill();ctx.stroke();ctx.beginPath();ctx.arc(c2.x,c2.y,3,0,2*Math.PI,false);ctx.fill();ctx.stroke();ctx.beginPath();ctx.arc(p.x,p.y,7,0,2*Math.PI,false);ctx.fill();ctx.stroke()}return this};Spline.prototype.pos=function(time){function bezier(t,p1,c1,c2,p2){var B=function(t){var t2=t*t,t3=t2*t;return[t3,3*t2*(1-t),3*t*(1-t)*(1-t),(1-t)*(1-t)*(1-t)]};var b=B(t);var pos={x:p2.x*b[0]+c2.x*b[1]+c1.x*b[2]+p1.x*b[3],y:p2.y*b[0]+c2.y*b[1]+c1.y*b[2]+p1.y*b[3],z:p2.z*b[0]+c2.z*b[1]+c1.z*b[2]+p1.z*b[3]};return pos}var t=time-this.delay;if(t<0)t=0;if(t>this.duration)t=this.duration-1;var t2=t/this.duration;if(t2>=1)return this.points[this.length-1];var n=Math.floor((this.points.length-1)*t2);var t1=(this.length-1)*t2-n;return bezier(t1,this.points[n],this.controls[n][1],this.controls[n+1][0],this.points[n+1])};Spline.prototype.draw=function(ctx,color){ctx.strokeStyle=color||"#7e5e38";ctx.lineWidth=14;ctx.beginPath();var pos;for(var i=0;i<this.duration;i+=10){pos=this.pos(i);if(Math.floor(i/100)%2==0)ctx.lineTo(pos.x,pos.y);else ctx.moveTo(pos.x,pos.y)}ctx.stroke();return this}},{"./linestring":32,lodash:66}],7:[function(_dereq_,module,exports){var _=_dereq_("lodash"),jsts=_dereq_("jsts");var t={};t.featurecollection=_dereq_("./featurecollection");t.polygon=_dereq_("./polygon");t.combine=_dereq_("./combine");module.exports=function(feature,radius,units,done){var buffered;done=done||function(){};switch(units){case"miles":radius=radius/69.047;break;case"kilometers":radius=radius/111.12;break;case"degrees":break}if(feature.type==="FeatureCollection"){var multi=t.combine(feature);multi.properties={};buffered=bufferOp(multi,radius);done(null,buffered);return buffered}else{buffered=bufferOp(feature,radius);done(null,buffered);return buffered}};var bufferOp=function(feature,radius){var reader=new jsts.io.GeoJSONReader;var geom=reader.read(JSON.stringify(feature.geometry));var buffered=geom.buffer(radius);var parser=new jsts.io.GeoJSONParser;buffered=parser.write(buffered);if(buffered.type==="MultiPolygon"){buffered={type:"Feature",geometry:buffered,properties:{}};buffered=t.featurecollection([buffered])}else{buffered=t.featurecollection([t.polygon(buffered.coordinates)])}return buffered}},{"./combine":10,"./featurecollection":22,"./polygon":43,jsts:63,lodash:66}],8:[function(_dereq_,module,exports){var t={};var extent=_dereq_("./extent");t.extent=extent;module.exports=function(layer,done){var extent=t.extent(layer);var x=(extent[0]+extent[2])/2;var y=(extent[1]+extent[3])/2;var center={type:"Feature",geometry:{type:"Point",coordinates:[x,y]}};done=done||function(){};done(center);return center}},{"./extent":21}],9:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),ss=_dereq_("simple-statistics");explode=_dereq_("./explode"),point=_dereq_("./point"),t.explode=explode;t.point=point;module.exports=function(features,done){var vertices=t.explode(features);var averageX,averageY,xs=[],ys=[],centroid;done=done||function(){};if(vertices instanceof Error){done(vertices);return vertices}_.each(vertices.features,function(v){xs.push(v.geometry.coordinates[0]);ys.push(v.geometry.coordinates[1])});averageX=ss.mean(xs);averageY=ss.mean(ys);centroid=t.point(averageX,averageY);done(null,centroid);return centroid}},{"./explode":20,"./point":42,lodash:66,"simple-statistics":67}],10:[function(_dereq_,module,exports){var _=_dereq_("lodash");module.exports=function(fc,done){var type=fc.features[0].geometry.type;var err;var geometries=_.pluck(fc.features,"geometry");done=done||function(){};switch(type){case"Point":var multiPoint={type:"Feature",geometry:{type:"MultiPoint",coordinates:[]}};multiPoint.geometry.coordinates=_.pluck(geometries,"coordinates");done(err,multiPoint);return multiPoint;break;case"LineString":var multiLineString={type:"Feature",geometry:{type:"MultiLineString",coordinates:[]}};multiLineString.geometry.coordinates=_.pluck(geometries,"coordinates");done(err,multiLineString);return multiLineString;break;case"Polygon":var multiPolygon={type:"Feature",geometry:{type:"MultiPolygon",coordinates:[]}};multiPolygon.geometry.coordinates=_.pluck(geometries,"coordinates");done(err,multiPolygon);return multiPolygon;break}}},{lodash:66}],11:[function(_dereq_,module,exports){var async=_dereq_("async");var t={};t.tin=_dereq_("./tin");t.merge=_dereq_("./merge");t.buffer=_dereq_("./buffer");t.distance=_dereq_("./distance");t.point=_dereq_("./point");module.exports=function(points,maxEdge,done){var tinPolys,filteredPolys,bufferPolys,mergePolys;done=done||function(){};tinPolys=t.tin(points,null);if(tinPolys instanceof Error){done(err);return tinPolys}filteredPolys=filterTriangles(tinPolys.features,maxEdge);tinPolys.features=filteredPolys;bufferPolys=t.buffer(tinPolys,1,"miles");if(bufferPolys instanceof Error){done(err);return bufferPolys}mergePolys=t.merge(bufferPolys);if(mergePolys instanceof Error){done(err);return mergePolys}done(null,mergePolys);return mergePolys};var filterTriangles=function(triangles,maxEdge,cb){filteredTriangles=[];_.each(triangles,function(triangle){var pt1=t.point(triangle.geometry.coordinates[0][0][0],triangle.geometry.coordinates[0][0][1]);var pt2=t.point(triangle.geometry.coordinates[0][1][0],triangle.geometry.coordinates[0][1][1]);var pt3=t.point(triangle.geometry.coordinates[0][2][0],triangle.geometry.coordinates[0][2][1]);var dist1=t.distance(pt1,pt2,"miles");var dist2=t.distance(pt2,pt3,"miles");var dist3=t.distance(pt1,pt3,"miles");if(dist1<=maxEdge&&dist2<=maxEdge&&dist3<=maxEdge){filteredTriangles.push(triangle)}});return filteredTriangles}},{"./buffer":7,"./distance":16,"./merge":36,"./point":42,"./tin":54,async:59}],12:[function(_dereq_,module,exports){var _=_dereq_("lodash"),async=_dereq_("async");var t={};t.tin=_dereq_("./tin");t.inside=_dereq_("./inside");t.grid=_dereq_("./grid");t.extent=_dereq_("./extent");t.planepoint=_dereq_("./planepoint");t.featurecollection=_dereq_("./featurecollection");t.polygon=_dereq_("./polygon");t.square=_dereq_("./square");t.donuts=_dereq_("./donuts");t.merge=_dereq_("./merge");module.exports=function(points,z,resolution,breaks,donuts,done){var tinResult=t.tin(points,z),gridResult=t.grid(t.square(t.extent(points))),data=[];done=done||function(){};_(gridResult.features).each(function(pt){_(tinResult.features).each(function(triangle){if(t.inside(pt,triangle)){pt.properties={};pt.properties[z]=t.planepoint(pt,triangle)}})});var depth=Math.sqrt(gridResult.features.length);for(var x=0;x<depth;x++){var xGroup=gridResult.features.slice(x*depth,(x+1)*depth);var xFlat=[];_.each(xGroup,function(verticalPoint){if(verticalPoint.properties){xFlat.push(verticalPoint.properties[z])}else{xFlat.push(0)}});data.push(xFlat)}var interval=(bbox[2]-bbox[0])/depth;var xCoordinates=[];var yCoordinates=[];for(var x=0;x<depth;x++){xCoordinates.push(x*interval+bbox[0]);yCoordinates.push(x*interval+bbox[1])}var c=new Conrec;c.contour(data,0,resolution,0,resolution,xCoordinates,yCoordinates,breaks.length,breaks);var contourList=c.contourList();var fc=t.featurecollection([]);_.each(contourList,function(c){if(c.length>2){var polyCoordinates=[];_.each(c,function(coord){polyCoordinates.push([coord.x,coord.y])});var poly=t.polygon([polyCoordinates]);poly.properties={};poly.properties[z]=c.level;fc.features.push(poly)}});if(donuts){var donutPolys=t.donuts(fc);var zGroups=[];_.each(donutPolys.features,function(ring){var found=false;_.each(zGroups,function(group){if(group.z===ring.properties[z]){found=true;group.rings.push(ring)}});if(!found){zGroups.push({z:ring.properties[z],rings:[ring]})}});donutPolys.features=[];_.each(zGroups,function(group){donutPolys.features.push(t.merge(t.featurecollection(group.rings)))});done(null,donutPolys);return donutPolys}else{done(null,fc);return fc}};exports.Conrec=Conrec;var EPSILON=1e-10;function pointsEqual(a,b){var x=a.x-b.x,y=a.y-b.y;return x*x+y*y<EPSILON}function reverseList(list){var pp=list.head;while(pp){var temp=pp.next;pp.next=pp.prev;pp.prev=temp;pp=temp}var temp=list.head;list.head=list.tail;list.tail=temp}function ContourBuilder(level){this.level=level;this.s=null;this.count=0}ContourBuilder.prototype.remove_seq=function(list){if(list.prev){list.prev.next=list.next}else{this.s=list.next}if(list.next){list.next.prev=list.prev}--this.count};ContourBuilder.prototype.addSegment=function(a,b){var ss=this.s;var ma=null;var mb=null;var prependA=false;var prependB=false;while(ss){if(ma==null){if(pointsEqual(a,ss.head.p)){ma=ss;prependA=true}else if(pointsEqual(a,ss.tail.p)){ma=ss}}if(mb==null){if(pointsEqual(b,ss.head.p)){mb=ss;prependB=true}else if(pointsEqual(b,ss.tail.p)){mb=ss}}if(mb!=null&&ma!=null){break}else{ss=ss.next}}var c=(ma!=null?1:0)|(mb!=null?2:0);switch(c){case 0:var aa={p:a,prev:null};var bb={p:b,next:null};aa.next=bb;bb.prev=aa;ma={head:aa,tail:bb,next:this.s,prev:null,closed:false};if(this.s){this.s.prev=ma}this.s=ma;++this.count;break;case 1:var pp={p:b};if(prependA){pp.next=ma.head;pp.prev=null;ma.head.prev=pp;ma.head=pp}else{pp.next=null;pp.prev=ma.tail;ma.tail.next=pp;ma.tail=pp}break;case 2:var pp={p:a};if(prependB){pp.next=mb.head;pp.prev=null;mb.head.prev=pp;mb.head=pp}else{pp.next=null;pp.prev=mb.tail;mb.tail.next=pp;mb.tail=pp}break;case 3:if(ma===mb){var pp={p:ma.tail.p,next:ma.head,prev:null};ma.head.prev=pp;ma.head=pp;ma.closed=true;break}switch((prependA?1:0)|(prependB?2:0)){case 0:reverseList(ma);case 1:mb.tail.next=ma.head;ma.head.prev=mb.tail;mb.tail=ma.tail;this.remove_seq(ma);break;case 3:reverseList(ma);case 2:ma.tail.next=mb.head;mb.head.prev=ma.tail;ma.tail=mb.tail;this.remove_seq(mb);break}}};function Conrec(drawContour){if(!drawContour){var c=this;c.contours={};this.drawContour=function(startX,startY,endX,endY,contourLevel,k){var cb=c.contours[k];if(!cb){cb=c.contours[k]=new ContourBuilder(contourLevel)}cb.addSegment({x:startX,y:startY},{x:endX,y:endY})};this.contourList=function(){var l=[];var a=c.contours;for(var k in a){var s=a[k].s;var level=a[k].level;while(s){var h=s.head;var l2=[];l2.level=level;l2.k=k;while(h&&h.p){l2.push(h.p);h=h.next}l.push(l2);s=s.next}}l.sort(function(a,b){return a.k-b.k});return l}}else{this.drawContour=drawContour}this.h=new Array(5);this.sh=new Array(5);this.xh=new Array(5);this.yh=new Array(5)}Conrec.prototype.contour=function(d,ilb,iub,jlb,jub,x,y,nc,z){var h=this.h,sh=this.sh,xh=this.xh,yh=this.yh;var drawContour=this.drawContour;this.contours={};var xsect=function(p1,p2){return(h[p2]*xh[p1]-h[p1]*xh[p2])/(h[p2]-h[p1])};var ysect=function(p1,p2){return(h[p2]*yh[p1]-h[p1]*yh[p2])/(h[p2]-h[p1])};var m1;var m2;var m3;var case_value;var dmin;var dmax;var x1=0;var x2=0;var y1=0;var y2=0;var im=[0,1,1,0];var jm=[0,0,1,1];var castab=[[[0,0,8],[0,2,5],[7,6,9]],[[0,3,4],[1,3,1],[4,3,0]],[[9,6,7],[5,2,0],[8,0,0]]];for(var j=jub-1;j>=jlb;j--){for(var i=ilb;i<=iub-1;i++){var temp1,temp2;temp1=Math.min(d[i][j],d[i][j+1]);temp2=Math.min(d[i+1][j],d[i+1][j+1]);dmin=Math.min(temp1,temp2);temp1=Math.max(d[i][j],d[i][j+1]);temp2=Math.max(d[i+1][j],d[i+1][j+1]);dmax=Math.max(temp1,temp2);if(dmax>=z[0]&&dmin<=z[nc-1]){for(var k=0;k<nc;k++){if(z[k]>=dmin&&z[k]<=dmax){for(var m=4;m>=0;m--){if(m>0){h[m]=d[i+im[m-1]][j+jm[m-1]]-z[k];xh[m]=x[i+im[m-1]];yh[m]=y[j+jm[m-1]]}else{h[0]=.25*(h[1]+h[2]+h[3]+h[4]);xh[0]=.5*(x[i]+x[i+1]);yh[0]=.5*(y[j]+y[j+1])}if(h[m]>EPSILON){sh[m]=1}else if(h[m]<-EPSILON){sh[m]=-1}else sh[m]=0}for(m=1;m<=4;m++){m1=m;m2=0;if(m!=4){m3=m+1}else{m3=1}case_value=castab[sh[m1]+1][sh[m2]+1][sh[m3]+1];if(case_value!=0){switch(case_value){case 1:x1=xh[m1];y1=yh[m1];x2=xh[m2];y2=yh[m2];break;case 2:x1=xh[m2];y1=yh[m2];x2=xh[m3];y2=yh[m3];break;case 3:x1=xh[m3];y1=yh[m3];x2=xh[m1];y2=yh[m1];break;case 4:x1=xh[m1];y1=yh[m1];x2=xsect(m2,m3);y2=ysect(m2,m3);break;case 5:x1=xh[m2];y1=yh[m2];x2=xsect(m3,m1);y2=ysect(m3,m1);break;case 6:x1=xh[m3];y1=yh[m3];x2=xsect(m1,m2);y2=ysect(m1,m2);break;case 7:x1=xsect(m1,m2);y1=ysect(m1,m2);x2=xsect(m2,m3);y2=ysect(m2,m3);break;case 8:x1=xsect(m2,m3);y1=ysect(m2,m3);x2=xsect(m3,m1);y2=ysect(m3,m1);break;case 9:x1=xsect(m3,m1);y1=ysect(m3,m1);x2=xsect(m1,m2);y2=ysect(m1,m2);break;default:break}drawContour(x1,y1,x2,y2,z[k],k)}}}}}}}}},{"./donuts":17,"./extent":21,"./featurecollection":22,"./grid":25,"./inside":26,"./merge":36,"./planepoint":41,"./polygon":43,"./square":51,"./tin":54,async:59,lodash:66}],13:[function(_dereq_,module,exports){var t={};t.tin=_dereq_("./tin");t.merge=_dereq_("./merge");t.buffer=_dereq_("./buffer");module.exports=function(points,done){var tinPolys=t.tin(points,null),mergePolys;done=done||function(){};if(tinPolys instanceof Error){done(tinPolys);return tinPolys}mergePolys=t.merge(tinPolys);if(mergePolys instanceof Error){done(mergePolys)}else{done(null,mergePolys)}return mergePolys}},{"./buffer":7,"./merge":36,"./tin":54}],14:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash");t.inside=_dereq_("./inside");module.exports=function(polyFC,ptFC,outField,done){done=done||function(){};_.each(polyFC.features,function(poly){if(!poly.properties){poly.properties={}}var values=[];_.each(ptFC.features,function(pt){if(t.inside(pt,poly)){values.push(1)}});poly.properties[outField]=values.length});done(null,polyFC);return polyFC}},{"./inside":26,lodash:66}],15:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),ss=_dereq_("simple-statistics");t.inside=_dereq_("./inside");module.exports=function(polyFC,ptFC,inField,outField,done){done=done||function(){};_.each(polyFC.features,function(poly){if(!poly.properties){poly.properties={}}var values=[];_.each(ptFC.features,function(pt){if(t.inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=ss.standard_deviation(values)});done(null,polyFC);return polyFC}},{"./inside":26,lodash:66,"simple-statistics":67}],16:[function(_dereq_,module,exports){module.exports=function(point1,point2,units,done){var toRad=function(degree){return degree*Math.PI/180};var coordinates1=point1.geometry.coordinates;var coordinates2=point2.geometry.coordinates;var dLat=toRad(coordinates2[0]-coordinates1[0]);var dLon=toRad(coordinates2[1]-coordinates1[1]);var lat1=toRad(coordinates1[1]);var lat2=toRad(coordinates2[1]);var a=Math.sin(dLat/2)*Math.sin(dLat/2)+Math.sin(dLon/2)*Math.sin(dLon/2)*Math.cos(lat1)*Math.cos(lat2);var c=2*Math.atan2(Math.sqrt(a),Math.sqrt(1-a));var R=0;done=done||function(){};switch(units){case"miles":R=3960;break;case"kilometers":R=6373;break;case"degrees":R=57.2957795;break;case"radians":R=1;break}var distance=R*c;done(null,distance);return distance}},{}],17:[function(_dereq_,module,exports){var _=_dereq_("lodash");var t={};t.featurecollection=_dereq_("./featurecollection");t.erase=_dereq_("./erase");t.point=_dereq_("./point");t.inside=_dereq_("./inside");t.union=_dereq_("./union");module.exports=function(fc,done){done=done||function(){};donuts=t.featurecollection([]);_.each(fc.features,function(poly1){_.each(fc.features,function(poly2){if(_.isEqual(poly1,poly2)){}else{var isContained=contained(poly1,poly2);if(isContained&&!_.isEqual(poly1.properties,poly2.properties)){var erased=t.erase(poly1,poly2);if(!_.some(donuts.features,erased)){poly1=erased}}if(isContained&&_.isEqual(poly1.properties,poly2.properties)){var unioned=t.union(poly1,poly2);if(!_.some(donuts.features,unioned)){poly1=unioned}}}});donuts.features.push(poly1)});done(null,donuts);return donuts};function contained(poly1,poly2){var sampleVertex=t.point(poly2.geometry.coordinates[0][0][0],poly2.geometry.coordinates[0][0][1]);return t.inside(sampleVertex,poly1)}},{"./erase":19,"./featurecollection":22,"./inside":26,"./point":42,"./union":56,lodash:66}],18:[function(_dereq_,module,exports){var t={};var extent=_dereq_("./extent"),bboxPolygon=_dereq_("./bboxPolygon");t.bboxPolygon=bboxPolygon;t.extent=extent;module.exports=function(features,done){var poly=t.bboxPolygon(t.extent(features));done=done||function(){};if(poly instanceof Error){done(poly)}else{done(null,poly)}return poly}},{"./bboxPolygon":5,"./extent":21}],19:[function(_dereq_,module,exports){var jsts=_dereq_("jsts"),_=_dereq_("lodash");var t={};t.featurecollection=_dereq_("./featurecollection");module.exports=function(poly1,poly2,done){poly1=correctRings(poly1);poly2=correctRings(poly2);var reader=new jsts.io.GeoJSONReader;var a=reader.read(JSON.stringify(poly1.geometry));var b=reader.read(JSON.stringify(poly2.geometry));var erased=a.difference(b);var parser=new jsts.io.GeoJSONParser;erased=parser.write(erased);var newPoly=_.cloneDeep(poly1);newPoly.geometry=erased;done=done||function(){};done(null,newPoly);return newPoly};function correctRings(poly){_.each(poly.geometry.coordinates,function(ring){var isWrapped=_.isEqual(ring[0],ring.slice(-1)[0]);if(!isWrapped){ring.push(ring[0])}});return poly}},{"./featurecollection":22,jsts:63,lodash:66}],20:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),featurecollection=_dereq_("./featurecollection"),point=_dereq_("./point");t.featurecollection=featurecollection;t.point=point;module.exports=function(features,done){var coordinates=[];done=done||function(){};if(features.type==="FeatureCollection"){for(var i in features.features){switch(features.features[i].geometry.type){case"Point":coordinates.push([features.features[i].geometry.coordinates]);break;case"LineString":coordinates.push(features.features[i].geometry.coordinates);break;case"Polygon":coordinates.push(features.features[i].geometry.coordinates);coordinates.push(_.flatten(coordinates,true));break;case"MultiPoint":coordinates.push(features.features[i].geometry.coordinates);break;case"MultiLineString":coordinates.push(features.features[i].geometry.coordinates);coordinates.push(_.flatten(coordinates,true));break;case"MultiPolygon":coordinates.push(features.features[i].geometry.coordinates);coordinates.push(_.flatten(coordinates,true));coordinates.push(_.flatten(coordinates,true));break}if(!features.features[i].geometry&&features.features[i].properties){throw new Error("Unknown Geometry Type")}}coordinates=_.flatten(coordinates,true)}else{var geometry;if(features.type==="Feature"){geometry=features.geometry}else{geometry=features}switch(geometry.type){case"Point":coordinates=[geometry.coordinates];break;case"LineString":coordinates=geometry.coordinates;break;case"Polygon":coordinates=geometry.coordinates;coordinates=_.flatten(coordinates,true);break;case"MultiPoint":coordinates=geometry.coordinates;break;case"MultiLineString":coordinates=geometry.coordinates;coordinates=_.flatten(coordinates,true);break;case"MultiPolygon":coordinates=geometry.coordinates;coordinates=_.flatten(coordinates,true);coordinates=_.flatten(coordinates,true);break}if(!geometry){throw new Error("No Geometry Found")}}var fc=t.featurecollection([]);_.each(coordinates,function(c){fc.features.push(t.point(c[0],c[1]))});done(null,fc);return fc}},{"./featurecollection":22,"./point":42,lodash:66}],21:[function(_dereq_,module,exports){_=_dereq_("lodash");module.exports=function(layer,done){var xmin=Infinity,ymin=Infinity,xmax=-Infinity,ymax=-Infinity;done=done||function(){};if(layer.type==="FeatureCollection"){for(var i in layer.features){var coordinates;switch(layer.features[i].geometry.type){case"Point":coordinates=[layer.features[i].geometry.coordinates];break;case"LineString":coordinates=layer.features[i].geometry.coordinates;break;case"Polygon":coordinates=layer.features[i].geometry.coordinates;coordinates=_.flatten(coordinates,true);break;case"MultiPoint":coordinates=layer.features[i].geometry.coordinates;break;case"MultiLineString":coordinates=layer.features[i].geometry.coordinates;coordinates=_.flatten(coordinates,true);break;case"MultiPolygon":coordinates=layer.features[i].geometry.coordinates;coordinates=_.flatten(coordinates,true);coordinates=_.flatten(coordinates,true);break}if(!layer.features[i].geometry&&layer.features[i].properties){throw new Error("Unknown Geometry Type")}for(var n in coordinates){if(xmin>coordinates[n][0]){xmin=coordinates[n][0]}if(ymin>coordinates[n][1]){ymin=coordinates[n][1]}if(xmax<coordinates[n][0]){xmax=coordinates[n][0]}if(ymax<coordinates[n][1]){ymax=coordinates[n][1]}}}var bbox=[xmin,ymin,xmax,ymax];done(null,bbox);return bbox}else{var coordinates;var geometry;if(layer.type==="Feature"){geometry=layer.geometry}else{geometry=layer}switch(geometry.type){case"Point":coordinates=[geometry.coordinates];break;case"LineString":coordinates=geometry.coordinates;break;case"Polygon":coordinates=geometry.coordinates;coordinates=_.flatten(coordinates,true);break;case"MultiPoint":coordinates=geometry.coordinates;break;case"MultiLineString":coordinates=geometry.coordinates;coordinates=_.flatten(coordinates,true);break;case"MultiPolygon":coordinates=geometry.coordinates;coordinates=_.flatten(coordinates,true);coordinates=_.flatten(coordinates,true);break}if(!geometry){throw new Error("No Geometry Found")}for(var n in coordinates){if(xmin>coordinates[n][0]){xmin=coordinates[n][0]}if(ymin>coordinates[n][1]){ymin=coordinates[n][1]}if(xmax<coordinates[n][0]){xmax=coordinates[n][0]}if(ymax<coordinates[n][1]){ymax=coordinates[n][1]}}var bbox=[xmin,ymin,xmax,ymax];done(null,bbox);return bbox}}},{lodash:66}],22:[function(_dereq_,module,exports){module.exports=function(features){var fc={type:"FeatureCollection",features:features};return fc}},{}],23:[function(_dereq_,module,exports){var _=_dereq_("lodash");var t={};t.featurecollection=_dereq_("./featurecollection");module.exports=function(fc,field,value,done){var newFC=t.featurecollection([]);done=done||function(){};for(var i=0;i<fc.features.length;i++){if(fc.features[i].properties[field]===value){newFC.features.push(fc.features[i])}}done(null,newFC);return newFC}},{"./featurecollection":22,lodash:66}],24:[function(_dereq_,module,exports){var t={};t.featurecollection=_dereq_("./featurecollection");module.exports=function(fc,done){done=done||function(){};if(fc.type==="Feature"){switch(fc.geometry.type){case"Point":fc.geometry.coordinates=flipCoordinate(fc.geometry.coordinates);done(null,fc);return fc;break;case"LineString":_.each(fc.geometry.coordinates,function(coordinates,i){coordinates=flipCoordinate(coordinates);fc.geometry.coordinates[i]=coordinates});done(null,fc);return fc;break;case"Polygon":_.each(fc.geometry.coordinates,function(ring,i){_.each(ring,function(coordinates,k){coordinates=flipCoordinate(coordinates);fc.geometry.coordinates[i][k]=coordinates})});done(null,fc);return fc;break}}else if(fc.type==="FeatureCollection"){_.each(fc.features,function(feature){switch(feature.geometry.type){case"Point":feature.geometry.coordinates=flipCoordinate(feature.geometry.coordinates);break;case"LineString":_.each(feature.geometry.coordinates,function(coordinates,i){coordinates=flipCoordinate(coordinates);feature.geometry.coordinates[i]=coordinates});break;case"Polygon":_.each(feature.geometry.coordinates,function(ring,i){_.each(ring,function(coordinates,k){coordinates=flipCoordinate(coordinates);feature.geometry.coordinates[i][k]=coordinates})});break}});done(null,fc);return fc}else{var err=new Error("Unknown geometry type");
done(err,null);return err}};var flipCoordinate=function(coordinates){x=coordinates[0];y=coordinates[1];return[y,x]}},{"./featurecollection":22}],25:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),point=_dereq_("./point");t.point=point;module.exports=function(extents,depth,done){var xmin=extents[0];var ymin=extents[1];var xmax=extents[2];var ymax=extents[3];var interval=(xmax-xmin)/depth;var coords=[];var fc={type:"FeatureCollection",features:[]};done=done||function(){};for(var x=0;x<=depth;x++){for(var y=0;y<=depth;y++){fc.features.push(t.point(x*interval+xmin,y*interval+ymin))}}done(null,fc);return fc}},{"./point":42,lodash:66}],26:[function(_dereq_,module,exports){module.exports=function(point,polygon,done){var x=point.geometry.coordinates[0];var y=point.geometry.coordinates[1];var vs=polygon.geometry.coordinates[0];var isInside=false;done=done||function(){};for(var i=0,j=vs.length-1;i<vs.length;j=i++){var xi=vs[i][0],yi=vs[i][1];var xj=vs[j][0],yj=vs[j][1];var intersect=yi>y!=yj>y&&x<(xj-xi)*(y-yi)/(yj-yi)+xi;if(intersect)isInside=!isInside}done(null,isInside);return isInside}},{}],27:[function(_dereq_,module,exports){var jsts=_dereq_("jsts");var t={};t.featurecollection=_dereq_("./featurecollection");module.exports=function(polys1,polys2,done){var reader=new jsts.io.GeoJSONReader;var a=reader.read(JSON.stringify(polys1.features[0].geometry));var b=reader.read(JSON.stringify(polys2.features[0].geometry));var intersection=a.intersection(b);var parser=new jsts.io.GeoJSONParser;done=done||function(){};intersection=parser.write(intersection);intersection=t.featurecollection([intersection]);done(null,intersection);return intersection}},{"./featurecollection":22,jsts:63}],28:[function(_dereq_,module,exports){module.exports=function(ring){var sum=0;var i=1;var len=ring.length;var prev,cur;while(i<len){prev=cur||ring[0];cur=ring[i];sum+=(cur[0]-prev[0])*(cur[1]+prev[1]);i++}return sum>0}},{}],29:[function(_dereq_,module,exports){var _=_dereq_("lodash"),async=_dereq_("async");var t={};t.tin=_dereq_("./tin");t.inside=_dereq_("./inside");t.grid=_dereq_("./grid");t.extent=_dereq_("./extent");t.planepoint=_dereq_("./planepoint");t.featurecollection=_dereq_("./featurecollection");t.polygon=_dereq_("./polygon");t.square=_dereq_("./square");t.donuts=_dereq_("./donuts");t.merge=_dereq_("./merge");t.size=_dereq_("./size");t.point=_dereq_("./point");module.exports=function(points,z,resolution,breaks,done){var addEdgesResult=addEdges(points,z,resolution);done=done||function(){};if(addEdgesResult instanceof Error){done(addEdgesResult);return addEdgesResult}var tinResult=t.tin(points,z),extentBBox=t.extent(points),squareBBox=t.square(extentBBox),gridResult=t.grid(squareBBox,resolution),data=[];_(gridResult.features).each(function(pt){_(tinResult.features).each(function(triangle){if(t.inside(pt,triangle)){pt.properties={};pt.properties[z]=t.planepoint(pt,triangle)}});if(!pt.properties){pt.properties={};pt.properties[z]=-100}});var depth=Math.sqrt(gridResult.features.length);for(var x=0;x<depth;x++){var xGroup=gridResult.features.slice(x*depth,(x+1)*depth);var xFlat=[];_.each(xGroup,function(verticalPoint){if(verticalPoint.properties){xFlat.push(verticalPoint.properties[z])}else{xFlat.push(0)}});data.push(xFlat)}var interval=(squareBBox[2]-squareBBox[0])/depth;var xCoordinates=[];var yCoordinates=[];for(var x=0;x<depth;x++){xCoordinates.push(x*interval+squareBBox[0]);yCoordinates.push(x*interval+squareBBox[1])}breaks=_.map(breaks,function(num){if(num===0){return.01}else{return num}});breaks=_.uniq(breaks);var c=new Conrec;c.contour(data,0,resolution,0,resolution,xCoordinates,yCoordinates,breaks.length,breaks);var contourList=c.contourList();var fc=t.featurecollection([]);_.each(contourList,function(c){if(c.length>2){var polyCoordinates=[];_.each(c,function(coord){polyCoordinates.push([coord.x,coord.y])});var poly=t.polygon([polyCoordinates]);poly.properties={};poly.properties[z]=c.level;fc.features.push(poly)}});var donutPolys=t.donuts(fc);var zGroups=[];_.each(donutPolys.features,function(ring){var found=false;_.each(zGroups,function(group){if(group.z===ring.properties[z]){found=true;group.rings.push(ring)}});if(!found){zGroups.push({z:ring.properties[z],rings:[ring]})}});donutPolys.features=[];_.each(zGroups,function(group){_.each(group.rings,function(ring){});donutPolys.features.push(t.merge(t.featurecollection(group.rings)))});done(null,donutPolys);return donutPolys};function addEdges(points,z,resolution){var extentBBox=t.extent(points),squareBBox,sizeResult;if(extentBBox instanceof Error){return extentBBox}squareBBox=t.square(extentBBox);if(squareBBox instanceof Error){return squareBBox}sizeBBox=t.size(squareBBox,.35);if(sizeBBox instanceof Error){return sizeBBox}var edgeDistance=sizeBBox[2]-sizeBBox[0];var extendDistance=edgeDistance/resolution;var xmin=sizeBBox[0];var ymin=sizeBBox[1];var xmax=sizeBBox[2];var ymax=sizeBBox[3];var left=[[xmin,ymin],[xmin,ymax]];for(var i=0;i<=resolution;i++){var pt=t.point(xmin,ymin+extendDistance*i);pt.properties={};pt.properties[z]=-100;points.features.push(pt)}var bottom=[[xmin,ymin],[xmax,ymin]];for(var i=0;i<=resolution;i++){var pt=t.point(xmin+extendDistance*i,ymin);pt.properties={};pt.properties[z]=-100;points.features.push(pt)}var right=[[xmax,ymin],[xmax,ymax]];for(var i=0;i<=resolution;i++){var pt=t.point(xmax,ymin+extendDistance*i);pt.properties={};pt.properties[z]=-100;points.features.push(pt)}var top=[[xmin,ymax],[xmax,ymax]];for(var i=0;i<=resolution;i++){var pt=t.point(xmin+extendDistance*i,ymax);pt.properties={};pt.properties[z]=-100;points.features.push(pt)}return points}exports.Conrec=Conrec;var EPSILON=1e-10;function pointsEqual(a,b){var x=a.x-b.x,y=a.y-b.y;return x*x+y*y<EPSILON}function reverseList(list){var pp=list.head;while(pp){var temp=pp.next;pp.next=pp.prev;pp.prev=temp;pp=temp}var temp=list.head;list.head=list.tail;list.tail=temp}function ContourBuilder(level){this.level=level;this.s=null;this.count=0}ContourBuilder.prototype.remove_seq=function(list){if(list.prev){list.prev.next=list.next}else{this.s=list.next}if(list.next){list.next.prev=list.prev}--this.count};ContourBuilder.prototype.addSegment=function(a,b){var ss=this.s;var ma=null;var mb=null;var prependA=false;var prependB=false;while(ss){if(ma==null){if(pointsEqual(a,ss.head.p)){ma=ss;prependA=true}else if(pointsEqual(a,ss.tail.p)){ma=ss}}if(mb==null){if(pointsEqual(b,ss.head.p)){mb=ss;prependB=true}else if(pointsEqual(b,ss.tail.p)){mb=ss}}if(mb!=null&&ma!=null){break}else{ss=ss.next}}var c=(ma!=null?1:0)|(mb!=null?2:0);switch(c){case 0:var aa={p:a,prev:null};var bb={p:b,next:null};aa.next=bb;bb.prev=aa;ma={head:aa,tail:bb,next:this.s,prev:null,closed:false};if(this.s){this.s.prev=ma}this.s=ma;++this.count;break;case 1:var pp={p:b};if(prependA){pp.next=ma.head;pp.prev=null;ma.head.prev=pp;ma.head=pp}else{pp.next=null;pp.prev=ma.tail;ma.tail.next=pp;ma.tail=pp}break;case 2:var pp={p:a};if(prependB){pp.next=mb.head;pp.prev=null;mb.head.prev=pp;mb.head=pp}else{pp.next=null;pp.prev=mb.tail;mb.tail.next=pp;mb.tail=pp}break;case 3:if(ma===mb){var pp={p:ma.tail.p,next:ma.head,prev:null};ma.head.prev=pp;ma.head=pp;ma.closed=true;break}switch((prependA?1:0)|(prependB?2:0)){case 0:reverseList(ma);case 1:mb.tail.next=ma.head;ma.head.prev=mb.tail;mb.tail=ma.tail;this.remove_seq(ma);break;case 3:reverseList(ma);case 2:ma.tail.next=mb.head;mb.head.prev=ma.tail;ma.tail=mb.tail;this.remove_seq(mb);break}}};function Conrec(drawContour){if(!drawContour){var c=this;c.contours={};this.drawContour=function(startX,startY,endX,endY,contourLevel,k){var cb=c.contours[k];if(!cb){cb=c.contours[k]=new ContourBuilder(contourLevel)}cb.addSegment({x:startX,y:startY},{x:endX,y:endY})};this.contourList=function(){var l=[];var a=c.contours;for(var k in a){var s=a[k].s;var level=a[k].level;while(s){var h=s.head;var l2=[];l2.level=level;l2.k=k;while(h&&h.p){l2.push(h.p);h=h.next}l.push(l2);s=s.next}}l.sort(function(a,b){return a.k-b.k});return l}}else{this.drawContour=drawContour}this.h=new Array(5);this.sh=new Array(5);this.xh=new Array(5);this.yh=new Array(5)}Conrec.prototype.contour=function(d,ilb,iub,jlb,jub,x,y,nc,z){var h=this.h,sh=this.sh,xh=this.xh,yh=this.yh;var drawContour=this.drawContour;this.contours={};var xsect=function(p1,p2){return(h[p2]*xh[p1]-h[p1]*xh[p2])/(h[p2]-h[p1])};var ysect=function(p1,p2){return(h[p2]*yh[p1]-h[p1]*yh[p2])/(h[p2]-h[p1])};var m1;var m2;var m3;var case_value;var dmin;var dmax;var x1=0;var x2=0;var y1=0;var y2=0;var im=[0,1,1,0];var jm=[0,0,1,1];var castab=[[[0,0,8],[0,2,5],[7,6,9]],[[0,3,4],[1,3,1],[4,3,0]],[[9,6,7],[5,2,0],[8,0,0]]];for(var j=jub-1;j>=jlb;j--){for(var i=ilb;i<=iub-1;i++){var temp1,temp2;temp1=Math.min(d[i][j],d[i][j+1]);temp2=Math.min(d[i+1][j],d[i+1][j+1]);dmin=Math.min(temp1,temp2);temp1=Math.max(d[i][j],d[i][j+1]);temp2=Math.max(d[i+1][j],d[i+1][j+1]);dmax=Math.max(temp1,temp2);if(dmax>=z[0]&&dmin<=z[nc-1]){for(var k=0;k<nc;k++){if(z[k]>=dmin&&z[k]<=dmax){for(var m=4;m>=0;m--){if(m>0){h[m]=d[i+im[m-1]][j+jm[m-1]]-z[k];xh[m]=x[i+im[m-1]];yh[m]=y[j+jm[m-1]]}else{h[0]=.25*(h[1]+h[2]+h[3]+h[4]);xh[0]=.5*(x[i]+x[i+1]);yh[0]=.5*(y[j]+y[j+1])}if(h[m]>EPSILON){sh[m]=1}else if(h[m]<-EPSILON){sh[m]=-1}else sh[m]=0}for(m=1;m<=4;m++){m1=m;m2=0;if(m!=4){m3=m+1}else{m3=1}case_value=castab[sh[m1]+1][sh[m2]+1][sh[m3]+1];if(case_value!=0){switch(case_value){case 1:x1=xh[m1];y1=yh[m1];x2=xh[m2];y2=yh[m2];break;case 2:x1=xh[m2];y1=yh[m2];x2=xh[m3];y2=yh[m3];break;case 3:x1=xh[m3];y1=yh[m3];x2=xh[m1];y2=yh[m1];break;case 4:x1=xh[m1];y1=yh[m1];x2=xsect(m2,m3);y2=ysect(m2,m3);break;case 5:x1=xh[m2];y1=yh[m2];x2=xsect(m3,m1);y2=ysect(m3,m1);break;case 6:x1=xh[m3];y1=yh[m3];x2=xsect(m1,m2);y2=ysect(m1,m2);break;case 7:x1=xsect(m1,m2);y1=ysect(m1,m2);x2=xsect(m2,m3);y2=ysect(m2,m3);break;case 8:x1=xsect(m2,m3);y1=ysect(m2,m3);x2=xsect(m3,m1);y2=ysect(m3,m1);break;case 9:x1=xsect(m3,m1);y1=ysect(m3,m1);x2=xsect(m1,m2);y2=ysect(m1,m2);break;default:break}drawContour(x1,y1,x2,y2,z[k],k)}}}}}}}}},{"./donuts":17,"./extent":21,"./featurecollection":22,"./grid":25,"./inside":26,"./merge":36,"./planepoint":41,"./point":42,"./polygon":43,"./size":50,"./square":51,"./tin":54,async:59,lodash:66}],30:[function(_dereq_,module,exports){var _=_dereq_("lodash"),async=_dereq_("async");var t={};t.tin=_dereq_("./tin");t.inside=_dereq_("./inside");t.grid=_dereq_("./grid");t.extent=_dereq_("./extent");t.planepoint=_dereq_("./planepoint");t.featurecollection=_dereq_("./featurecollection");t.linestring=_dereq_("./linestring");t.square=_dereq_("./square");module.exports=function(points,z,resolution,breaks,done){var tinResult=t.tin(points,z),extentBBox=t.extent(points),squareBBox=t.square(extentBBox),gridResult=t.grid(squareBBox,resolution),data=[];done=done||function(){};_(gridResult.features).each(function(pt){_(tinResult.features).each(function(triangle){if(t.inside(pt,triangle)){pt.properties={};pt.properties[z]=t.planepoint(pt,triangle)}})});var depth=Math.sqrt(gridResult.features.length);for(var x=0;x<depth;x++){var xGroup=gridResult.features.slice(x*depth,(x+1)*depth);var xFlat=[];_.each(xGroup,function(verticalPoint){if(verticalPoint.properties){xFlat.push(verticalPoint.properties[z])}else{xFlat.push(0)}});data.push(xFlat)}var interval=(squareBBox[2]-squareBBox[0])/depth;var xCoordinates=[];var yCoordinates=[];for(var x=0;x<depth;x++){xCoordinates.push(x*interval+squareBBox[0]);yCoordinates.push(x*interval+squareBBox[1])}var c=new Conrec;c.contour(data,0,resolution,0,resolution,xCoordinates,yCoordinates,breaks.length,breaks);var contourList=c.contourList();var fc=t.featurecollection([]);_.each(contourList,function(c){if(c.length>2){var polyCoordinates=[];_.each(c,function(coord){polyCoordinates.push([coord.x,coord.y])});var poly=t.linestring(polyCoordinates);poly.properties={};poly.properties[z]=c.level;fc.features.push(poly)}});done(null,fc);return fc};exports.Conrec=Conrec;var EPSILON=1e-10;function pointsEqual(a,b){var x=a.x-b.x,y=a.y-b.y;return x*x+y*y<EPSILON}function reverseList(list){var pp=list.head;while(pp){var temp=pp.next;pp.next=pp.prev;pp.prev=temp;pp=temp}var temp=list.head;list.head=list.tail;list.tail=temp}function ContourBuilder(level){this.level=level;this.s=null;this.count=0}ContourBuilder.prototype.remove_seq=function(list){if(list.prev){list.prev.next=list.next}else{this.s=list.next}if(list.next){list.next.prev=list.prev}--this.count};ContourBuilder.prototype.addSegment=function(a,b){var ss=this.s;var ma=null;var mb=null;var prependA=false;var prependB=false;while(ss){if(ma==null){if(pointsEqual(a,ss.head.p)){ma=ss;prependA=true}else if(pointsEqual(a,ss.tail.p)){ma=ss}}if(mb==null){if(pointsEqual(b,ss.head.p)){mb=ss;prependB=true}else if(pointsEqual(b,ss.tail.p)){mb=ss}}if(mb!=null&&ma!=null){break}else{ss=ss.next}}var c=(ma!=null?1:0)|(mb!=null?2:0);switch(c){case 0:var aa={p:a,prev:null};var bb={p:b,next:null};aa.next=bb;bb.prev=aa;ma={head:aa,tail:bb,next:this.s,prev:null,closed:false};if(this.s){this.s.prev=ma}this.s=ma;++this.count;break;case 1:var pp={p:b};if(prependA){pp.next=ma.head;pp.prev=null;ma.head.prev=pp;ma.head=pp}else{pp.next=null;pp.prev=ma.tail;ma.tail.next=pp;ma.tail=pp}break;case 2:var pp={p:a};if(prependB){pp.next=mb.head;pp.prev=null;mb.head.prev=pp;mb.head=pp}else{pp.next=null;pp.prev=mb.tail;mb.tail.next=pp;mb.tail=pp}break;case 3:if(ma===mb){var pp={p:ma.tail.p,next:ma.head,prev:null};ma.head.prev=pp;ma.head=pp;ma.closed=true;break}switch((prependA?1:0)|(prependB?2:0)){case 0:reverseList(ma);case 1:mb.tail.next=ma.head;ma.head.prev=mb.tail;mb.tail=ma.tail;this.remove_seq(ma);break;case 3:reverseList(ma);case 2:ma.tail.next=mb.head;mb.head.prev=ma.tail;ma.tail=mb.tail;this.remove_seq(mb);break}}};function Conrec(drawContour){if(!drawContour){var c=this;c.contours={};this.drawContour=function(startX,startY,endX,endY,contourLevel,k){var cb=c.contours[k];if(!cb){cb=c.contours[k]=new ContourBuilder(contourLevel)}cb.addSegment({x:startX,y:startY},{x:endX,y:endY})};this.contourList=function(){var l=[];var a=c.contours;for(var k in a){var s=a[k].s;var level=a[k].level;while(s){var h=s.head;var l2=[];l2.level=level;l2.k=k;while(h&&h.p){l2.push(h.p);h=h.next}l.push(l2);s=s.next}}l.sort(function(a,b){return a.k-b.k});return l}}else{this.drawContour=drawContour}this.h=new Array(5);this.sh=new Array(5);this.xh=new Array(5);this.yh=new Array(5)}Conrec.prototype.contour=function(d,ilb,iub,jlb,jub,x,y,nc,z){var h=this.h,sh=this.sh,xh=this.xh,yh=this.yh;var drawContour=this.drawContour;this.contours={};var xsect=function(p1,p2){return(h[p2]*xh[p1]-h[p1]*xh[p2])/(h[p2]-h[p1])};var ysect=function(p1,p2){return(h[p2]*yh[p1]-h[p1]*yh[p2])/(h[p2]-h[p1])};var m1;var m2;var m3;var case_value;var dmin;var dmax;var x1=0;var x2=0;var y1=0;var y2=0;var im=[0,1,1,0];var jm=[0,0,1,1];var castab=[[[0,0,8],[0,2,5],[7,6,9]],[[0,3,4],[1,3,1],[4,3,0]],[[9,6,7],[5,2,0],[8,0,0]]];for(var j=jub-1;j>=jlb;j--){for(var i=ilb;i<=iub-1;i++){var temp1,temp2;temp1=Math.min(d[i][j],d[i][j+1]);temp2=Math.min(d[i+1][j],d[i+1][j+1]);dmin=Math.min(temp1,temp2);temp1=Math.max(d[i][j],d[i][j+1]);temp2=Math.max(d[i+1][j],d[i+1][j+1]);dmax=Math.max(temp1,temp2);if(dmax>=z[0]&&dmin<=z[nc-1]){for(var k=0;k<nc;k++){if(z[k]>=dmin&&z[k]<=dmax){for(var m=4;m>=0;m--){if(m>0){h[m]=d[i+im[m-1]][j+jm[m-1]]-z[k];xh[m]=x[i+im[m-1]];yh[m]=y[j+jm[m-1]]}else{h[0]=.25*(h[1]+h[2]+h[3]+h[4]);xh[0]=.5*(x[i]+x[i+1]);yh[0]=.5*(y[j]+y[j+1])}if(h[m]>EPSILON){sh[m]=1}else if(h[m]<-EPSILON){sh[m]=-1}else sh[m]=0}for(m=1;m<=4;m++){m1=m;m2=0;if(m!=4){m3=m+1}else{m3=1}case_value=castab[sh[m1]+1][sh[m2]+1][sh[m3]+1];if(case_value!=0){switch(case_value){case 1:x1=xh[m1];y1=yh[m1];x2=xh[m2];y2=yh[m2];break;case 2:x1=xh[m2];y1=yh[m2];x2=xh[m3];y2=yh[m3];break;case 3:x1=xh[m3];y1=yh[m3];x2=xh[m1];y2=yh[m1];break;case 4:x1=xh[m1];y1=yh[m1];x2=xsect(m2,m3);y2=ysect(m2,m3);break;case 5:x1=xh[m2];y1=yh[m2];x2=xsect(m3,m1);y2=ysect(m3,m1);break;case 6:x1=xh[m3];y1=yh[m3];x2=xsect(m1,m2);y2=ysect(m1,m2);break;case 7:x1=xsect(m1,m2);y1=ysect(m1,m2);x2=xsect(m2,m3);y2=ysect(m2,m3);break;case 8:x1=xsect(m2,m3);y1=ysect(m2,m3);x2=xsect(m3,m1);y2=ysect(m3,m1);break;case 9:x1=xsect(m3,m1);y1=ysect(m3,m1);x2=xsect(m1,m2);y2=ysect(m1,m2);break;default:break}drawContour(x1,y1,x2,y2,z[k],k)}}}}}}}}},{"./extent":21,"./featurecollection":22,"./grid":25,"./inside":26,"./linestring":32,"./planepoint":41,"./square":51,"./tin":54,async:59,lodash:66}],31:[function(_dereq_,module,exports){var ss=_dereq_("simple-statistics"),_=_dereq_("lodash");module.exports=function(fc,field,num,done){var vals=[];var breaks=[];done=done||function(){};_.each(fc.features,function(feature){if(!(feature.properties[field]===undefined)){vals.push(feature.properties[field])}});breaks=ss.jenks(vals,num);done(null,breaks);return breaks}},{lodash:66,"simple-statistics":67}],32:[function(_dereq_,module,exports){module.exports=function(coordinates,properties){if(coordinates===null)throw new Error("No coordinates passed");var linestring={type:"Feature",geometry:{type:"LineString",coordinates:coordinates},properties:properties};return linestring}},{}],33:[function(_dereq_,module,exports){var path=_dereq_("path"),fs=_dereq_("fs"),layer;module.exports=function(file,done){fs.readFile(file,function(err,res){if(err)done(err);layer=JSON.parse(res);done(null,layer)})}},{fs:60,path:62}],34:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),ss=_dereq_("simple-statistics");t.inside=_dereq_("./inside");module.exports=function(polyFC,ptFC,inField,outField,done){done=done||function(){};_.each(polyFC.features,function(poly){if(!poly.properties){poly.properties={}}var values=[];_.each(ptFC.features,function(pt){if(t.inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=ss.max(values)});done(null,polyFC);return polyFC}},{"./inside":26,lodash:66,"simple-statistics":67}],35:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),ss=_dereq_("simple-statistics");t.inside=_dereq_("./inside");module.exports=function(polyFC,ptFC,inField,outField,done){done=done||function(){};_.each(polyFC.features,function(poly){if(!poly.properties){poly.properties={}}var values=[];_.each(ptFC.features,function(pt){if(t.inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=ss.median(values)});done(null,polyFC);return polyFC}},{"./inside":26,lodash:66,"simple-statistics":67}],36:[function(_dereq_,module,exports){var _=_dereq_("lodash");var t={};t.union=_dereq_("./union");module.exports=function(polygons,done){var merged=_.cloneDeep(polygons.features[0]),features=polygons.features;done=done||function(){};for(var i=0,len=features.length;i<len;i++){var poly=features[i];if(poly.geometry){merged=t.union(merged,poly)}}done(null,merged);return merged}},{"./union":56,lodash:66}],37:[function(_dereq_,module,exports){var t={};var point=_dereq_("./point");t.point=point;module.exports=function(point1,point2,done){if(point1===null||point2===null||point1&&point2===null)throw new Error("Less than two points passed.");var x1=point1.geometry.coordinates[0];var x2=point2.geometry.coordinates[0];var y1=point1.geometry.coordinates[1];var y2=point2.geometry.coordinates[1];var x3=x1+x2;var midX=x3/2;var y3=y1+y2;var midY=y3/2;var midpoint=t.point(midX,midY);done=done||function(){};done(null,midpoint);return midpoint}},{"./point":42}],38:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),ss=_dereq_("simple-statistics");t.inside=_dereq_("./inside");module.exports=function(polyFC,ptFC,inField,outField,done){done=done||function(){};_.each(polyFC.features,function(poly){if(!poly.properties){poly.properties={}}var values=[];_.each(ptFC.features,function(pt){if(t.inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=ss.min(values)});done(null,polyFC);return polyFC}},{"./inside":26,lodash:66,"simple-statistics":67}],39:[function(_dereq_,module,exports){module.exports=function(inPoints,outPoints,distance,unit,done){}},{}],40:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),distance=_dereq_("./distance");t.distance=distance;module.exports=function(targetPoint,points,done){var nearestPoint;var count=0;var dist=Infinity;function complete(nPt){delete nPt.properties.distance;done(null,nPt)}done=done||function(){};_.forEach(points.features,function(pt){if(!nearestPoint){nearestPoint=pt;nearestPoint.properties.distance=t.distance(targetPoint,pt,"miles")}else{dist=t.distance(targetPoint,pt,"miles");if(dist<nearestPoint.properties.distance){nearestPoint=pt;nearestPoint.properties.distance=dist}if(points.features.length===count+1){complete(nearestPoint)}}count++});return nearestPoint}},{"./distance":16,lodash:66}],41:[function(_dereq_,module,exports){http:module.exports=function(point,triangle,done){var x=point.geometry.coordinates[0];y=point.geometry.coordinates[1];x1=triangle.geometry.coordinates[0][0][0],y1=triangle.geometry.coordinates[0][0][1],z1=triangle.properties.a;x2=triangle.geometry.coordinates[0][1][0],y2=triangle.geometry.coordinates[0][1][1],z2=triangle.properties.b;x3=triangle.geometry.coordinates[0][2][0],y3=triangle.geometry.coordinates[0][2][1],z3=triangle.properties.c;var z=(z3*(x-x1)*(y-y2)+z1*(x-x2)*(y-y3)+z2*(x-x3)*(y-y1)-z2*(x-x1)*(y-y3)-z3*(x-x2)*(y-y1)-z1*(x-x3)*(y-y2))/((x-x1)*(y-y2)+(x-x2)*(y-y3)+(x-x3)*(y-y1)-(x-x1)*(y-y3)-(x-x2)*(y-y1)-(x-x3)*(y-y2));done=done||function(){};done(null,z);return z}},{}],42:[function(_dereq_,module,exports){module.exports=function(x,y,properties){if(x===null||y===null)throw new Error("Invalid coordinates");var point={type:"Feature",geometry:{type:"Point",coordinates:[x,y]},properties:properties};return point}},{}],43:[function(_dereq_,module,exports){module.exports=function(coordinates,properties){if(coordinates===null)throw new Error("No coordinates passed");var polygon={type:"Feature",geometry:{type:"Polygon",coordinates:coordinates},properties:properties};if(!polygon.properties){polygon.properties={}}return polygon}},{}],44:[function(_dereq_,module,exports){var ss=_dereq_("simple-statistics"),_=_dereq_("lodash");module.exports=function(fc,field,percentiles,done){var vals=[];var quantiles=[];done=done||function(){};_.each(fc.features,function(feature){vals.push(feature.properties[field])});_.each(percentiles,function(percentile){quantiles.push(ss.quantile(vals,percentile*.01))});done(null,quantiles);return quantiles}},{lodash:66,"simple-statistics":67}],45:[function(_dereq_,module,exports){var t={};var featurecollection=_dereq_("./featurecollection");t.featurecollection=featurecollection;module.exports=function(fc,inField,outField,translations,done){var reclassed=t.featurecollection([]);done=done||function(){};_.each(fc.features,function(feature){var reclassedFeature;var found=false;for(var i=0;i<translations.length;i++){if(feature.properties[inField]>=translations[i][0]&&feature.properties[inField]<=translations[i][1]){reclassedFeature=_.clone(feature,true);reclassedFeature.properties[outField]=translations[i][2]}}reclassed.features.push(reclassedFeature)});done(null,reclassed);return reclassed}},{"./featurecollection":22}],46:[function(_dereq_,module,exports){var t={};var featurecollection=_dereq_("./featurecollection");t.featurecollection=featurecollection;module.exports=function(collection,key,val,done){var newFC=t.featurecollection([]);done=done||function(){};for(var i=0;i<collection.features.length;i++){if(collection.features[i].properties[key]!=val){newFC.features.push(collection.features[i])}}done(null,newFC);return newFC}},{"./featurecollection":22}],47:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),featurecollection=_dereq_("./featurecollection");t.featurecollection=featurecollection;module.exports=function(fc,num,done){var outFC=t.featurecollection(_.sample(fc.features,num));done=done||function(){};done(null,outFC);return outFC}},{"./featurecollection":22,lodash:66}],48:[function(_dereq_,module,exports){var t={};var fs=_dereq_("fs");t.topo=_dereq_("./topo");module.exports=function(path,features,type,done){if(!type)type="geojson";switch(type){case"geojson":fs.writeFile(path,JSON.stringify(features),function(err){done(err,1)});break;case"topojson":t.topo(features,function(err,topology){fs.writeFile(path,JSON.stringify(features),function(err){done(err,1)})});break}}},{"./topo":55,fs:60}],49:[function(_dereq_,module,exports){var topojson=_dereq_("topojson");module.exports=function(fc,quantization,minimumArea,done){var options={quantization:quantization,"minimum-area":minimumArea,"property-transform":function(properties,key,value){properties[key]=value;return true}};var topo=topojson.topology({name:fc},options);done=done||function(){};topojson.simplify(topo,options);var simplifiedFeature=topojson.feature(topo,topo.objects.name);done(null,simplifiedFeature);return simplifiedFeature}},{topojson:68}],50:[function(_dereq_,module,exports){module.exports=function(bbox,factor,done){var xDistance=(bbox[2]-bbox[0])/2*factor;var yDistance=(bbox[3]-bbox[1])/2*factor;var lowX=bbox[0]-xDistance;var lowY=bbox[1]-yDistance;var highX=xDistance+bbox[2];var highY=yDistance+bbox[3];var sized=[lowX,lowY,highX,highY];done=done||function(){};done(null,sized);return sized}},{}],51:[function(_dereq_,module,exports){var t={};var midpoint=_dereq_("../lib/midpoint"),point=_dereq_("../lib/point"),distance=_dereq_("../lib/distance");t.midpoint=midpoint;t.point=point;t.distance=distance;module.exports=function(bbox,done){var squareBbox=[0,0,0,0];var lowLeft=t.point(bbox[0],bbox[1]);var topLeft=t.point(bbox[0],bbox[3]);var topRight=t.point(bbox[2],bbox[3]);var lowRight=t.point(bbox[2],bbox[1]);var horizontalDistance=t.distance(lowLeft,lowRight,"miles");var verticalDistance=t.distance(lowLeft,topLeft,"miles");var verticalMidpoint;var horizontalMidpoint;done=done||function(){};if(horizontalDistance>=verticalDistance){squareBbox[0]=bbox[0];squareBbox[2]=bbox[2];verticalMidpoint=t.midpoint(lowLeft,topLeft);squareBbox[1]=verticalMidpoint.geometry.coordinates[1]-(bbox[2]-bbox[0])/2;squareBbox[3]=verticalMidpoint.geometry.coordinates[1]+(bbox[2]-bbox[0])/2}else{squareBbox[1]=bbox[1];squareBbox[3]=bbox[3];horizontalMidpoint=t.midpoint(lowLeft,lowRight);squareBbox[0]=horizontalMidpoint.geometry.coordinates[0]-(bbox[3]-bbox[1])/2;squareBbox[2]=horizontalMidpoint.geometry.coordinates[0]+(bbox[3]-bbox[1])/2}done(null,squareBbox);return squareBbox}},{"../lib/distance":16,"../lib/midpoint":37,"../lib/point":42}],52:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),ss=_dereq_("simple-statistics");t.inside=_dereq_("./inside");module.exports=function(polyFC,ptFC,inField,outField,done){done=done||function(){};_.each(polyFC.features,function(poly){if(!poly.properties){poly.properties={}}var values=[];_.each(ptFC.features,function(pt){if(t.inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=ss.sum(values)});done(null,polyFC);return polyFC}},{"./inside":26,lodash:66,"simple-statistics":67}],53:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash");t.inside=_dereq_("./inside");module.exports=function(points,polygons,field,outField,done){done=done||function(){};_.each(points.features,function(pt){if(!pt.properties){pt.properties={}}_.each(polygons.features,function(poly){if(!pt.properties[outField]){if(t.inside(pt,poly)){pt.properties[outField]=poly.properties[field]}else{pt.properties[outField]=null}}})});done(null,points);return points}},{"./inside":26,lodash:66}],54:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),polygon=_dereq_("./polygon"),nearest=_dereq_("./nearest"),point=_dereq_("./point");t.polygon=polygon;t.nearest=nearest;t.point=point;module.exports=function(points,z,done){var vertices=[];_(points.features).each(function(p){vertices.push({x:p.geometry.coordinates[0],y:p.geometry.coordinates[1]})});var triangulated=triangulate(vertices);var triangles={type:"FeatureCollection",features:[]};done=done||function(){};_(triangulated).each(function(triangle){var coords=[[[triangle.a.x,triangle.a.y],[triangle.b.x,triangle.b.y],[triangle.c.x,triangle.c.y]]];var poly=t.polygon(coords,{a:null,b:null,c:null});triangles.features.push(poly)});if(z){_.each(triangles.features,function(tri){var coordinateNumber=1;_.each(tri.geometry.coordinates[0],function(c){var closest=t.nearest(t.point(c[0],c[1]),points);if(coordinateNumber===1){tri.properties.a=closest.properties[z]}else if(coordinateNumber===2){tri.properties.b=closest.properties[z]}else if(coordinateNumber===3){tri.properties.c=closest.properties[z]}coordinateNumber++})})}_.each(triangles.features,function(tri){tri=correctRings(tri)});done(null,triangles);return triangles};function correctRings(poly){_.each(poly.geometry.coordinates,function(ring){var isWrapped=_.isEqual(ring[0],ring.slice(-1)[0]);if(!isWrapped){ring.push(ring[0])}});return poly}function Triangle(a,b,c){this.a=a;this.b=b;this.c=c;var A=b.x-a.x,B=b.y-a.y,C=c.x-a.x,D=c.y-a.y,E=A*(a.x+b.x)+B*(a.y+b.y),F=C*(a.x+c.x)+D*(a.y+c.y),G=2*(A*(c.y-b.y)-B*(c.x-b.x)),minx,miny,dx,dy;if(Math.abs(G)<1e-6){minx=Math.min(a.x,b.x,c.x);miny=Math.min(a.y,b.y,c.y);dx=(Math.max(a.x,b.x,c.x)-minx)*.5;dy=(Math.max(a.y,b.y,c.y)-miny)*.5;this.x=minx+dx;this.y=miny+dy;this.r=dx*dx+dy*dy}else{this.x=(D*E-B*F)/G;this.y=(A*F-C*E)/G;dx=this.x-a.x;dy=this.y-a.y;this.r=dx*dx+dy*dy}}Triangle.prototype.draw=function(ctx){ctx.beginPath();ctx.moveTo(this.a.x,this.a.y);ctx.lineTo(this.b.x,this.b.y);ctx.lineTo(this.c.x,this.c.y);ctx.closePath();ctx.stroke()};function byX(a,b){return b.x-a.x}function dedup(edges){var j=edges.length,a,b,i,m,n;outer:while(j){b=edges[--j];a=edges[--j];i=j;while(i){n=edges[--i];m=edges[--i];if(a===m&&b===n||a===n&&b===m){edges.splice(j,2);edges.splice(i,2);j-=2;continue outer}}}}function triangulate(vertices){if(vertices.length<3)return[];vertices.sort(byX);var i=vertices.length-1,xmin=vertices[i].x,xmax=vertices[0].x,ymin=vertices[i].y,ymax=ymin;while(i--){if(vertices[i].y<ymin)ymin=vertices[i].y;if(vertices[i].y>ymax)ymax=vertices[i].y}var dx=xmax-xmin,dy=ymax-ymin,dmax=dx>dy?dx:dy,xmid=(xmax+xmin)*.5,ymid=(ymax+ymin)*.5,open=[new Triangle({x:xmid-20*dmax,y:ymid-dmax,__sentinel:true},{x:xmid,y:ymid+20*dmax,__sentinel:true},{x:xmid+20*dmax,y:ymid-dmax,__sentinel:true})],closed=[],edges=[],j,a,b;i=vertices.length;while(i--){edges.length=0;j=open.length;while(j--){dx=vertices[i].x-open[j].x;if(dx>0&&dx*dx>open[j].r){closed.push(open[j]);open.splice(j,1);continue}dy=vertices[i].y-open[j].y;if(dx*dx+dy*dy>open[j].r)continue;edges.push(open[j].a,open[j].b,open[j].b,open[j].c,open[j].c,open[j].a);open.splice(j,1)}dedup(edges);j=edges.length;while(j){b=edges[--j];a=edges[--j];open.push(new Triangle(a,b,vertices[i]))}}Array.prototype.push.apply(closed,open);i=closed.length;while(i--)if(closed[i].a.__sentinel||closed[i].b.__sentinel||closed[i].c.__sentinel)closed.splice(i,1);return closed}},{"./nearest":40,"./point":42,"./polygon":43,lodash:66}],55:[function(_dereq_,module,exports){var topojson=_dereq_("topojson");module.exports=function(geojson,done){var topology=topojson.topology({geojson:geojson});done=done||function(){};done(null,topology);return topology}},{topojson:68}],56:[function(_dereq_,module,exports){var jsts=_dereq_("jsts");var t={};t.featurecollection=_dereq_("./featurecollection");module.exports=function(poly1,poly2,done){var reader=new jsts.io.GeoJSONReader;var a=reader.read(JSON.stringify(poly1.geometry));var b=reader.read(JSON.stringify(poly2.geometry));var union=a.union(b);var parser=new jsts.io.GeoJSONParser;done=done||function(){};union=parser.write(union);union={type:"Feature",geometry:union,properties:poly1.properties};done(null,union);return union}},{"./featurecollection":22,jsts:63}],57:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash"),ss=_dereq_("simple-statistics");t.inside=_dereq_("./inside");module.exports=function(polyFC,ptFC,inField,outField,done){done=done||function(){};_.each(polyFC.features,function(poly){if(!poly.properties){poly.properties={}
}var values=[];_.each(ptFC.features,function(pt){if(t.inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=ss.variance(values)});done(null,polyFC);return polyFC}},{"./inside":26,lodash:66,"simple-statistics":67}],58:[function(_dereq_,module,exports){var t={};var _=_dereq_("lodash");t.inside=_dereq_("./inside");t.featurecollection=_dereq_("./featurecollection");module.exports=function(ptFC,polyFC,done){var pointsWithin=t.featurecollection([]);done=done||function(){};_.each(polyFC.features,function(poly){_.each(ptFC.features,function(pt){if(t.inside(pt,poly)){pointsWithin.features.push(pt)}})});done(null,pointsWithin);return pointsWithin}},{"./featurecollection":22,"./inside":26,lodash:66}],59:[function(_dereq_,module,exports){(function(process){(function(){var async={};var root,previous_async;root=this;if(root!=null){previous_async=root.async}async.noConflict=function(){root.async=previous_async;return async};function only_once(fn){var called=false;return function(){if(called)throw new Error("Callback was already called.");called=true;fn.apply(root,arguments)}}var _each=function(arr,iterator){if(arr.forEach){return arr.forEach(iterator)}for(var i=0;i<arr.length;i+=1){iterator(arr[i],i,arr)}};var _map=function(arr,iterator){if(arr.map){return arr.map(iterator)}var results=[];_each(arr,function(x,i,a){results.push(iterator(x,i,a))});return results};var _reduce=function(arr,iterator,memo){if(arr.reduce){return arr.reduce(iterator,memo)}_each(arr,function(x,i,a){memo=iterator(memo,x,i,a)});return memo};var _keys=function(obj){if(Object.keys){return Object.keys(obj)}var keys=[];for(var k in obj){if(obj.hasOwnProperty(k)){keys.push(k)}}return keys};if(typeof process==="undefined"||!process.nextTick){if(typeof setImmediate==="function"){async.nextTick=function(fn){setImmediate(fn)};async.setImmediate=async.nextTick}else{async.nextTick=function(fn){setTimeout(fn,0)};async.setImmediate=async.nextTick}}else{async.nextTick=process.nextTick;if(typeof setImmediate!=="undefined"){async.setImmediate=function(fn){setImmediate(fn)}}else{async.setImmediate=async.nextTick}}async.each=function(arr,iterator,callback){callback=callback||function(){};if(!arr.length){return callback()}var completed=0;_each(arr,function(x){iterator(x,only_once(function(err){if(err){callback(err);callback=function(){}}else{completed+=1;if(completed>=arr.length){callback(null)}}}))})};async.forEach=async.each;async.eachSeries=function(arr,iterator,callback){callback=callback||function(){};if(!arr.length){return callback()}var completed=0;var iterate=function(){iterator(arr[completed],function(err){if(err){callback(err);callback=function(){}}else{completed+=1;if(completed>=arr.length){callback(null)}else{iterate()}}})};iterate()};async.forEachSeries=async.eachSeries;async.eachLimit=function(arr,limit,iterator,callback){var fn=_eachLimit(limit);fn.apply(null,[arr,iterator,callback])};async.forEachLimit=async.eachLimit;var _eachLimit=function(limit){return function(arr,iterator,callback){callback=callback||function(){};if(!arr.length||limit<=0){return callback()}var completed=0;var started=0;var running=0;(function replenish(){if(completed>=arr.length){return callback()}while(running<limit&&started<arr.length){started+=1;running+=1;iterator(arr[started-1],function(err){if(err){callback(err);callback=function(){}}else{completed+=1;running-=1;if(completed>=arr.length){callback()}else{replenish()}}})}})()}};var doParallel=function(fn){return function(){var args=Array.prototype.slice.call(arguments);return fn.apply(null,[async.each].concat(args))}};var doParallelLimit=function(limit,fn){return function(){var args=Array.prototype.slice.call(arguments);return fn.apply(null,[_eachLimit(limit)].concat(args))}};var doSeries=function(fn){return function(){var args=Array.prototype.slice.call(arguments);return fn.apply(null,[async.eachSeries].concat(args))}};var _asyncMap=function(eachfn,arr,iterator,callback){var results=[];arr=_map(arr,function(x,i){return{index:i,value:x}});eachfn(arr,function(x,callback){iterator(x.value,function(err,v){results[x.index]=v;callback(err)})},function(err){callback(err,results)})};async.map=doParallel(_asyncMap);async.mapSeries=doSeries(_asyncMap);async.mapLimit=function(arr,limit,iterator,callback){return _mapLimit(limit)(arr,iterator,callback)};var _mapLimit=function(limit){return doParallelLimit(limit,_asyncMap)};async.reduce=function(arr,memo,iterator,callback){async.eachSeries(arr,function(x,callback){iterator(memo,x,function(err,v){memo=v;callback(err)})},function(err){callback(err,memo)})};async.inject=async.reduce;async.foldl=async.reduce;async.reduceRight=function(arr,memo,iterator,callback){var reversed=_map(arr,function(x){return x}).reverse();async.reduce(reversed,memo,iterator,callback)};async.foldr=async.reduceRight;var _filter=function(eachfn,arr,iterator,callback){var results=[];arr=_map(arr,function(x,i){return{index:i,value:x}});eachfn(arr,function(x,callback){iterator(x.value,function(v){if(v){results.push(x)}callback()})},function(err){callback(_map(results.sort(function(a,b){return a.index-b.index}),function(x){return x.value}))})};async.filter=doParallel(_filter);async.filterSeries=doSeries(_filter);async.select=async.filter;async.selectSeries=async.filterSeries;var _reject=function(eachfn,arr,iterator,callback){var results=[];arr=_map(arr,function(x,i){return{index:i,value:x}});eachfn(arr,function(x,callback){iterator(x.value,function(v){if(!v){results.push(x)}callback()})},function(err){callback(_map(results.sort(function(a,b){return a.index-b.index}),function(x){return x.value}))})};async.reject=doParallel(_reject);async.rejectSeries=doSeries(_reject);var _detect=function(eachfn,arr,iterator,main_callback){eachfn(arr,function(x,callback){iterator(x,function(result){if(result){main_callback(x);main_callback=function(){}}else{callback()}})},function(err){main_callback()})};async.detect=doParallel(_detect);async.detectSeries=doSeries(_detect);async.some=function(arr,iterator,main_callback){async.each(arr,function(x,callback){iterator(x,function(v){if(v){main_callback(true);main_callback=function(){}}callback()})},function(err){main_callback(false)})};async.any=async.some;async.every=function(arr,iterator,main_callback){async.each(arr,function(x,callback){iterator(x,function(v){if(!v){main_callback(false);main_callback=function(){}}callback()})},function(err){main_callback(true)})};async.all=async.every;async.sortBy=function(arr,iterator,callback){async.map(arr,function(x,callback){iterator(x,function(err,criteria){if(err){callback(err)}else{callback(null,{value:x,criteria:criteria})}})},function(err,results){if(err){return callback(err)}else{var fn=function(left,right){var a=left.criteria,b=right.criteria;return a<b?-1:a>b?1:0};callback(null,_map(results.sort(fn),function(x){return x.value}))}})};async.auto=function(tasks,callback){callback=callback||function(){};var keys=_keys(tasks);if(!keys.length){return callback(null)}var results={};var listeners=[];var addListener=function(fn){listeners.unshift(fn)};var removeListener=function(fn){for(var i=0;i<listeners.length;i+=1){if(listeners[i]===fn){listeners.splice(i,1);return}}};var taskComplete=function(){_each(listeners.slice(0),function(fn){fn()})};addListener(function(){if(_keys(results).length===keys.length){callback(null,results);callback=function(){}}});_each(keys,function(k){var task=tasks[k]instanceof Function?[tasks[k]]:tasks[k];var taskCallback=function(err){var args=Array.prototype.slice.call(arguments,1);if(args.length<=1){args=args[0]}if(err){var safeResults={};_each(_keys(results),function(rkey){safeResults[rkey]=results[rkey]});safeResults[k]=args;callback(err,safeResults);callback=function(){}}else{results[k]=args;async.setImmediate(taskComplete)}};var requires=task.slice(0,Math.abs(task.length-1))||[];var ready=function(){return _reduce(requires,function(a,x){return a&&results.hasOwnProperty(x)},true)&&!results.hasOwnProperty(k)};if(ready()){task[task.length-1](taskCallback,results)}else{var listener=function(){if(ready()){removeListener(listener);task[task.length-1](taskCallback,results)}};addListener(listener)}})};async.waterfall=function(tasks,callback){callback=callback||function(){};if(tasks.constructor!==Array){var err=new Error("First argument to waterfall must be an array of functions");return callback(err)}if(!tasks.length){return callback()}var wrapIterator=function(iterator){return function(err){if(err){callback.apply(null,arguments);callback=function(){}}else{var args=Array.prototype.slice.call(arguments,1);var next=iterator.next();if(next){args.push(wrapIterator(next))}else{args.push(callback)}async.setImmediate(function(){iterator.apply(null,args)})}}};wrapIterator(async.iterator(tasks))()};var _parallel=function(eachfn,tasks,callback){callback=callback||function(){};if(tasks.constructor===Array){eachfn.map(tasks,function(fn,callback){if(fn){fn(function(err){var args=Array.prototype.slice.call(arguments,1);if(args.length<=1){args=args[0]}callback.call(null,err,args)})}},callback)}else{var results={};eachfn.each(_keys(tasks),function(k,callback){tasks[k](function(err){var args=Array.prototype.slice.call(arguments,1);if(args.length<=1){args=args[0]}results[k]=args;callback(err)})},function(err){callback(err,results)})}};async.parallel=function(tasks,callback){_parallel({map:async.map,each:async.each},tasks,callback)};async.parallelLimit=function(tasks,limit,callback){_parallel({map:_mapLimit(limit),each:_eachLimit(limit)},tasks,callback)};async.series=function(tasks,callback){callback=callback||function(){};if(tasks.constructor===Array){async.mapSeries(tasks,function(fn,callback){if(fn){fn(function(err){var args=Array.prototype.slice.call(arguments,1);if(args.length<=1){args=args[0]}callback.call(null,err,args)})}},callback)}else{var results={};async.eachSeries(_keys(tasks),function(k,callback){tasks[k](function(err){var args=Array.prototype.slice.call(arguments,1);if(args.length<=1){args=args[0]}results[k]=args;callback(err)})},function(err){callback(err,results)})}};async.iterator=function(tasks){var makeCallback=function(index){var fn=function(){if(tasks.length){tasks[index].apply(null,arguments)}return fn.next()};fn.next=function(){return index<tasks.length-1?makeCallback(index+1):null};return fn};return makeCallback(0)};async.apply=function(fn){var args=Array.prototype.slice.call(arguments,1);return function(){return fn.apply(null,args.concat(Array.prototype.slice.call(arguments)))}};var _concat=function(eachfn,arr,fn,callback){var r=[];eachfn(arr,function(x,cb){fn(x,function(err,y){r=r.concat(y||[]);cb(err)})},function(err){callback(err,r)})};async.concat=doParallel(_concat);async.concatSeries=doSeries(_concat);async.whilst=function(test,iterator,callback){if(test()){iterator(function(err){if(err){return callback(err)}async.whilst(test,iterator,callback)})}else{callback()}};async.doWhilst=function(iterator,test,callback){iterator(function(err){if(err){return callback(err)}if(test()){async.doWhilst(iterator,test,callback)}else{callback()}})};async.until=function(test,iterator,callback){if(!test()){iterator(function(err){if(err){return callback(err)}async.until(test,iterator,callback)})}else{callback()}};async.doUntil=function(iterator,test,callback){iterator(function(err){if(err){return callback(err)}if(!test()){async.doUntil(iterator,test,callback)}else{callback()}})};async.queue=function(worker,concurrency){if(concurrency===undefined){concurrency=1}function _insert(q,data,pos,callback){if(data.constructor!==Array){data=[data]}_each(data,function(task){var item={data:task,callback:typeof callback==="function"?callback:null};if(pos){q.tasks.unshift(item)}else{q.tasks.push(item)}if(q.saturated&&q.tasks.length===concurrency){q.saturated()}async.setImmediate(q.process)})}var workers=0;var q={tasks:[],concurrency:concurrency,saturated:null,empty:null,drain:null,push:function(data,callback){_insert(q,data,false,callback)},unshift:function(data,callback){_insert(q,data,true,callback)},process:function(){if(workers<q.concurrency&&q.tasks.length){var task=q.tasks.shift();if(q.empty&&q.tasks.length===0){q.empty()}workers+=1;var next=function(){workers-=1;if(task.callback){task.callback.apply(task,arguments)}if(q.drain&&q.tasks.length+workers===0){q.drain()}q.process()};var cb=only_once(next);worker(task.data,cb)}},length:function(){return q.tasks.length},running:function(){return workers}};return q};async.cargo=function(worker,payload){var working=false,tasks=[];var cargo={tasks:tasks,payload:payload,saturated:null,empty:null,drain:null,push:function(data,callback){if(data.constructor!==Array){data=[data]}_each(data,function(task){tasks.push({data:task,callback:typeof callback==="function"?callback:null});if(cargo.saturated&&tasks.length===payload){cargo.saturated()}});async.setImmediate(cargo.process)},process:function process(){if(working)return;if(tasks.length===0){if(cargo.drain)cargo.drain();return}var ts=typeof payload==="number"?tasks.splice(0,payload):tasks.splice(0);var ds=_map(ts,function(task){return task.data});if(cargo.empty)cargo.empty();working=true;worker(ds,function(){working=false;var args=arguments;_each(ts,function(data){if(data.callback){data.callback.apply(null,args)}});process()})},length:function(){return tasks.length},running:function(){return working}};return cargo};var _console_fn=function(name){return function(fn){var args=Array.prototype.slice.call(arguments,1);fn.apply(null,args.concat([function(err){var args=Array.prototype.slice.call(arguments,1);if(typeof console!=="undefined"){if(err){if(console.error){console.error(err)}}else if(console[name]){_each(args,function(x){console[name](x)})}}}]))}};async.log=_console_fn("log");async.dir=_console_fn("dir");async.memoize=function(fn,hasher){var memo={};var queues={};hasher=hasher||function(x){return x};var memoized=function(){var args=Array.prototype.slice.call(arguments);var callback=args.pop();var key=hasher.apply(null,args);if(key in memo){callback.apply(null,memo[key])}else if(key in queues){queues[key].push(callback)}else{queues[key]=[callback];fn.apply(null,args.concat([function(){memo[key]=arguments;var q=queues[key];delete queues[key];for(var i=0,l=q.length;i<l;i++){q[i].apply(null,arguments)}}]))}};memoized.memo=memo;memoized.unmemoized=fn;return memoized};async.unmemoize=function(fn){return function(){return(fn.unmemoized||fn).apply(null,arguments)}};async.times=function(count,iterator,callback){var counter=[];for(var i=0;i<count;i++){counter.push(i)}return async.map(counter,iterator,callback)};async.timesSeries=function(count,iterator,callback){var counter=[];for(var i=0;i<count;i++){counter.push(i)}return async.mapSeries(counter,iterator,callback)};async.compose=function(){var fns=Array.prototype.reverse.call(arguments);return function(){var that=this;var args=Array.prototype.slice.call(arguments);var callback=args.pop();async.reduce(fns,args,function(newargs,fn,cb){fn.apply(that,newargs.concat([function(){var err=arguments[0];var nextargs=Array.prototype.slice.call(arguments,1);cb(err,nextargs)}]))},function(err,results){callback.apply(that,[err].concat(results))})}};var _applyEach=function(eachfn,fns){var go=function(){var that=this;var args=Array.prototype.slice.call(arguments);var callback=args.pop();return eachfn(fns,function(fn,cb){fn.apply(that,args.concat([cb]))},callback)};if(arguments.length>2){var args=Array.prototype.slice.call(arguments,2);return go.apply(this,args)}else{return go}};async.applyEach=doParallel(_applyEach);async.applyEachSeries=doSeries(_applyEach);async.forever=function(fn,callback){function next(err){if(err){if(callback){return callback(err)}throw err}fn(next)}next()};if(typeof define!=="undefined"&&define.amd){define([],function(){return async})}else if(typeof module!=="undefined"&&module.exports){module.exports=async}else{root.async=async}})()}).call(this,_dereq_("m:\\development\\github repositories\\turf\\node_modules\\browserify\\node_modules\\insert-module-globals\\node_modules\\process\\browser.js"))},{"m:\\development\\github repositories\\turf\\node_modules\\browserify\\node_modules\\insert-module-globals\\node_modules\\process\\browser.js":61}],60:[function(_dereq_,module,exports){},{}],61:[function(_dereq_,module,exports){var process=module.exports={};process.nextTick=function(){var canSetImmediate=typeof window!=="undefined"&&window.setImmediate;var canPost=typeof window!=="undefined"&&window.postMessage&&window.addEventListener;if(canSetImmediate){return function(f){return window.setImmediate(f)}}if(canPost){var queue=[];window.addEventListener("message",function(ev){var source=ev.source;if((source===window||source===null)&&ev.data==="process-tick"){ev.stopPropagation();if(queue.length>0){var fn=queue.shift();fn()}}},true);return function nextTick(fn){queue.push(fn);window.postMessage("process-tick","*")}}return function nextTick(fn){setTimeout(fn,0)}}();process.title="browser";process.browser=true;process.env={};process.argv=[];process.binding=function(name){throw new Error("process.binding is not supported")};process.cwd=function(){return"/"};process.chdir=function(dir){throw new Error("process.chdir is not supported")}},{}],62:[function(_dereq_,module,exports){(function(process){function normalizeArray(parts,allowAboveRoot){var up=0;for(var i=parts.length-1;i>=0;i--){var last=parts[i];if(last==="."){parts.splice(i,1)}else if(last===".."){parts.splice(i,1);up++}else if(up){parts.splice(i,1);up--}}if(allowAboveRoot){for(;up--;up){parts.unshift("..")}}return parts}var splitPathRe=/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;var splitPath=function(filename){return splitPathRe.exec(filename).slice(1)};exports.resolve=function(){var resolvedPath="",resolvedAbsolute=false;for(var i=arguments.length-1;i>=-1&&!resolvedAbsolute;i--){var path=i>=0?arguments[i]:process.cwd();if(typeof path!=="string"){throw new TypeError("Arguments to path.resolve must be strings")}else if(!path){continue}resolvedPath=path+"/"+resolvedPath;resolvedAbsolute=path.charAt(0)==="/"}resolvedPath=normalizeArray(filter(resolvedPath.split("/"),function(p){return!!p}),!resolvedAbsolute).join("/");return(resolvedAbsolute?"/":"")+resolvedPath||"."};exports.normalize=function(path){var isAbsolute=exports.isAbsolute(path),trailingSlash=substr(path,-1)==="/";path=normalizeArray(filter(path.split("/"),function(p){return!!p}),!isAbsolute).join("/");if(!path&&!isAbsolute){path="."}if(path&&trailingSlash){path+="/"}return(isAbsolute?"/":"")+path};exports.isAbsolute=function(path){return path.charAt(0)==="/"};exports.join=function(){var paths=Array.prototype.slice.call(arguments,0);return exports.normalize(filter(paths,function(p,index){if(typeof p!=="string"){throw new TypeError("Arguments to path.join must be strings")}return p}).join("/"))};exports.relative=function(from,to){from=exports.resolve(from).substr(1);to=exports.resolve(to).substr(1);function trim(arr){var start=0;for(;start<arr.length;start++){if(arr[start]!=="")break}var end=arr.length-1;for(;end>=0;end--){if(arr[end]!=="")break}if(start>end)return[];return arr.slice(start,end-start+1)}var fromParts=trim(from.split("/"));var toParts=trim(to.split("/"));var length=Math.min(fromParts.length,toParts.length);var samePartsLength=length;for(var i=0;i<length;i++){if(fromParts[i]!==toParts[i]){samePartsLength=i;break}}var outputParts=[];for(var i=samePartsLength;i<fromParts.length;i++){outputParts.push("..")}outputParts=outputParts.concat(toParts.slice(samePartsLength));return outputParts.join("/")};exports.sep="/";exports.delimiter=":";exports.dirname=function(path){var result=splitPath(path),root=result[0],dir=result[1];if(!root&&!dir){return"."}if(dir){dir=dir.substr(0,dir.length-1)}return root+dir};exports.basename=function(path,ext){var f=splitPath(path)[2];if(ext&&f.substr(-1*ext.length)===ext){f=f.substr(0,f.length-ext.length)}return f};exports.extname=function(path){return splitPath(path)[3]};function filter(xs,f){if(xs.filter)return xs.filter(f);var res=[];for(var i=0;i<xs.length;i++){if(f(xs[i],i,xs))res.push(xs[i])}return res}var substr="ab".substr(-1)==="b"?function(str,start,len){return str.substr(start,len)}:function(str,start,len){if(start<0)start=str.length+start;return str.substr(start,len)}}).call(this,_dereq_("m:\\development\\github repositories\\turf\\node_modules\\browserify\\node_modules\\insert-module-globals\\node_modules\\process\\browser.js"))},{"m:\\development\\github repositories\\turf\\node_modules\\browserify\\node_modules\\insert-module-globals\\node_modules\\process\\browser.js":61}],63:[function(_dereq_,module,exports){(function(global){"use strict";global.javascript={};global.javascript.util=_dereq_("javascript.util");var jsts=_dereq_("./lib/jsts");module.exports=jsts}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./lib/jsts":64,"javascript.util":65}],64:[function(_dereq_,module,exports){jsts={version:"0.13.4",algorithm:{distance:{},locate:{}},error:{},geom:{util:{}},geomgraph:{index:{}},index:{bintree:{},chain:{},kdtree:{},quadtree:{},strtree:{}},io:{},noding:{snapround:{}},operation:{buffer:{},distance:{},overlay:{snap:{}},polygonize:{},relate:{},union:{},valid:{}},planargraph:{},simplify:{},triangulate:{quadedge:{}},util:{}};if(typeof String.prototype.trim!=="function"){String.prototype.trim=function(){return this.replace(/^\s+|\s+$/g,"")}}jsts.abstractFunc=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.error={};jsts.error.IllegalArgumentError=function(message){this.name="IllegalArgumentError";this.message=message};jsts.error.IllegalArgumentError.prototype=new Error;jsts.error.TopologyError=function(message,pt){this.name="TopologyError";this.message=pt?message+" [ "+pt+" ]":message};jsts.error.TopologyError.prototype=new Error;jsts.error.AbstractMethodInvocationError=function(){this.name="AbstractMethodInvocationError";this.message="Abstract method called, should be implemented in subclass."};jsts.error.AbstractMethodInvocationError.prototype=new Error;jsts.error.NotImplementedError=function(){this.name="NotImplementedError";this.message="This method has not yet been implemented."};jsts.error.NotImplementedError.prototype=new Error;jsts.error.NotRepresentableError=function(message){this.name="NotRepresentableError";this.message=message};jsts.error.NotRepresentableError.prototype=new Error;jsts.error.LocateFailureError=function(message){this.name="LocateFailureError";this.message=message};jsts.error.LocateFailureError.prototype=new Error;if(typeof module!=="undefined")module.exports=jsts;jsts.geom.GeometryFilter=function(){};jsts.geom.GeometryFilter.prototype.filter=function(geom){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.util.PolygonExtracter=function(comps){this.comps=comps};jsts.geom.util.PolygonExtracter.prototype=new jsts.geom.GeometryFilter;jsts.geom.util.PolygonExtracter.prototype.comps=null;jsts.geom.util.PolygonExtracter.getPolygons=function(geom,list){if(list===undefined){list=[]}if(geom instanceof jsts.geom.Polygon){list.push(geom)}else if(geom instanceof jsts.geom.GeometryCollection){geom.apply(new jsts.geom.util.PolygonExtracter(list))}return list};jsts.geom.util.PolygonExtracter.prototype.filter=function(geom){if(geom instanceof jsts.geom.Polygon)this.comps.push(geom)};jsts.io.WKTParser=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory;this.regExes={typeStr:/^\s*(\w+)\s*\(\s*(.*)\s*\)\s*$/,emptyTypeStr:/^\s*(\w+)\s*EMPTY\s*$/,spaces:/\s+/,parenComma:/\)\s*,\s*\(/,doubleParenComma:/\)\s*\)\s*,\s*\(\s*\(/,trimParens:/^\s*\(?(.*?)\)?\s*$/}};jsts.io.WKTParser.prototype.read=function(wkt){var geometry,type,str;wkt=wkt.replace(/[\n\r]/g," ");var matches=this.regExes.typeStr.exec(wkt);if(wkt.search("EMPTY")!==-1){matches=this.regExes.emptyTypeStr.exec(wkt);matches[2]=undefined}if(matches){type=matches[1].toLowerCase();str=matches[2];if(this.parse[type]){geometry=this.parse[type].apply(this,[str])}}if(geometry===undefined)throw new Error("Could not parse WKT "+wkt);return geometry};jsts.io.WKTParser.prototype.write=function(geometry){return this.extractGeometry(geometry)};jsts.io.WKTParser.prototype.extractGeometry=function(geometry){var type=geometry.CLASS_NAME.split(".")[2].toLowerCase();if(!this.extract[type]){return null}var wktType=type.toUpperCase();var data;if(geometry.isEmpty()){data=wktType+" EMPTY"}else{data=wktType+"("+this.extract[type].apply(this,[geometry])+")"}return data};jsts.io.WKTParser.prototype.extract={coordinate:function(coordinate){return coordinate.x+" "+coordinate.y},point:function(point){return point.coordinate.x+" "+point.coordinate.y},multipoint:function(multipoint){var array=[];for(var i=0,len=multipoint.geometries.length;i<len;++i){array.push("("+this.extract.point.apply(this,[multipoint.geometries[i]])+")")}return array.join(",")},linestring:function(linestring){var array=[];for(var i=0,len=linestring.points.length;i<len;++i){array.push(this.extract.coordinate.apply(this,[linestring.points[i]]))}return array.join(",")},multilinestring:function(multilinestring){var array=[];for(var i=0,len=multilinestring.geometries.length;i<len;++i){array.push("("+this.extract.linestring.apply(this,[multilinestring.geometries[i]])+")")}return array.join(",")},polygon:function(polygon){var array=[];array.push("("+this.extract.linestring.apply(this,[polygon.shell])+")");for(var i=0,len=polygon.holes.length;i<len;++i){array.push("("+this.extract.linestring.apply(this,[polygon.holes[i]])+")")}return array.join(",")},multipolygon:function(multipolygon){var array=[];for(var i=0,len=multipolygon.geometries.length;i<len;++i){array.push("("+this.extract.polygon.apply(this,[multipolygon.geometries[i]])+")")}return array.join(",")},geometrycollection:function(collection){var array=[];for(var i=0,len=collection.geometries.length;i<len;++i){array.push(this.extractGeometry.apply(this,[collection.geometries[i]]))}return array.join(",")}};jsts.io.WKTParser.prototype.parse={point:function(str){if(str===undefined){return this.geometryFactory.createPoint(null)}var coords=str.trim().split(this.regExes.spaces);return this.geometryFactory.createPoint(new jsts.geom.Coordinate(coords[0],coords[1]))},multipoint:function(str){if(str===undefined){return this.geometryFactory.createMultiPoint(null)}var point;var points=str.trim().split(",");var components=[];for(var i=0,len=points.length;i<len;++i){point=points[i].replace(this.regExes.trimParens,"$1");components.push(this.parse.point.apply(this,[point]))}return this.geometryFactory.createMultiPoint(components)},linestring:function(str){if(str===undefined){return this.geometryFactory.createLineString(null)}var points=str.trim().split(",");var components=[];var coords;for(var i=0,len=points.length;i<len;++i){coords=points[i].trim().split(this.regExes.spaces);components.push(new jsts.geom.Coordinate(coords[0],coords[1]))}return this.geometryFactory.createLineString(components)},linearring:function(str){if(str===undefined){return this.geometryFactory.createLinearRing(null)}var points=str.trim().split(",");var components=[];var coords;for(var i=0,len=points.length;i<len;++i){coords=points[i].trim().split(this.regExes.spaces);components.push(new jsts.geom.Coordinate(coords[0],coords[1]))}return this.geometryFactory.createLinearRing(components)},multilinestring:function(str){if(str===undefined){return this.geometryFactory.createMultiLineString(null)}var line;var lines=str.trim().split(this.regExes.parenComma);var components=[];for(var i=0,len=lines.length;i<len;++i){line=lines[i].replace(this.regExes.trimParens,"$1");components.push(this.parse.linestring.apply(this,[line]))}return this.geometryFactory.createMultiLineString(components)},polygon:function(str){if(str===undefined){return this.geometryFactory.createPolygon(null)}var ring,linestring,linearring;var rings=str.trim().split(this.regExes.parenComma);var shell;var holes=[];for(var i=0,len=rings.length;i<len;++i){ring=rings[i].replace(this.regExes.trimParens,"$1");linestring=this.parse.linestring.apply(this,[ring]);linearring=this.geometryFactory.createLinearRing(linestring.points);if(i===0){shell=linearring}else{holes.push(linearring)}}return this.geometryFactory.createPolygon(shell,holes)},multipolygon:function(str){if(str===undefined){return this.geometryFactory.createMultiPolygon(null)}var polygon;var polygons=str.trim().split(this.regExes.doubleParenComma);var components=[];for(var i=0,len=polygons.length;i<len;++i){polygon=polygons[i].replace(this.regExes.trimParens,"$1");components.push(this.parse.polygon.apply(this,[polygon]))}return this.geometryFactory.createMultiPolygon(components)},geometrycollection:function(str){if(str===undefined){return this.geometryFactory.createGeometryCollection(null)}str=str.replace(/,\s*([A-Za-z])/g,"|$1");var wktArray=str.trim().split("|");var components=[];for(var i=0,len=wktArray.length;i<len;++i){components.push(jsts.io.WKTParser.prototype.read.apply(this,[wktArray[i]]))}return this.geometryFactory.createGeometryCollection(components)}};jsts.index.ItemVisitor=function(){};jsts.index.ItemVisitor.prototype.visitItem=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.algorithm.CGAlgorithms=function(){};jsts.algorithm.CGAlgorithms.CLOCKWISE=-1;jsts.algorithm.CGAlgorithms.RIGHT=jsts.algorithm.CGAlgorithms.CLOCKWISE;jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE=1;jsts.algorithm.CGAlgorithms.LEFT=jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE;jsts.algorithm.CGAlgorithms.COLLINEAR=0;jsts.algorithm.CGAlgorithms.STRAIGHT=jsts.algorithm.CGAlgorithms.COLLINEAR;jsts.algorithm.CGAlgorithms.orientationIndex=function(p1,p2,q){var dx1,dy1,dx2,dy2;dx1=p2.x-p1.x;dy1=p2.y-p1.y;dx2=q.x-p2.x;dy2=q.y-p2.y;return jsts.algorithm.RobustDeterminant.signOfDet2x2(dx1,dy1,dx2,dy2)};jsts.algorithm.CGAlgorithms.isPointInRing=function(p,ring){return jsts.algorithm.CGAlgorithms.locatePointInRing(p,ring)!==jsts.geom.Location.EXTERIOR};jsts.algorithm.CGAlgorithms.locatePointInRing=function(p,ring){return jsts.algorithm.RayCrossingCounter.locatePointInRing(p,ring)};jsts.algorithm.CGAlgorithms.isOnLine=function(p,pt){var lineIntersector,i,il,p0,p1;lineIntersector=new jsts.algorithm.RobustLineIntersector;for(i=1,il=pt.length;i<il;i++){p0=pt[i-1];p1=pt[i];lineIntersector.computeIntersection(p,p0,p1);if(lineIntersector.hasIntersection()){return true}}return false};jsts.algorithm.CGAlgorithms.isCCW=function(ring){var nPts,hiPt,hiIndex,p,iPrev,iNext,prev,next,i,disc,isCCW;nPts=ring.length-1;if(nPts<3){throw new jsts.IllegalArgumentError("Ring has fewer than 3 points, so orientation cannot be determined")}hiPt=ring[0];hiIndex=0;i=1;for(i;i<=nPts;i++){p=ring[i];if(p.y>hiPt.y){hiPt=p;hiIndex=i}}iPrev=hiIndex;do{iPrev=iPrev-1;if(iPrev<0){iPrev=nPts}}while(ring[iPrev].equals2D(hiPt)&&iPrev!==hiIndex);iNext=hiIndex;do{iNext=(iNext+1)%nPts}while(ring[iNext].equals2D(hiPt)&&iNext!==hiIndex);prev=ring[iPrev];next=ring[iNext];if(prev.equals2D(hiPt)||next.equals2D(hiPt)||prev.equals2D(next)){return false}disc=jsts.algorithm.CGAlgorithms.computeOrientation(prev,hiPt,next);isCCW=false;if(disc===0){isCCW=prev.x>next.x}else{isCCW=disc>0}return isCCW};jsts.algorithm.CGAlgorithms.computeOrientation=function(p1,p2,q){return jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,q)};jsts.algorithm.CGAlgorithms.distancePointLine=function(p,A,B){if(!(A instanceof jsts.geom.Coordinate)){jsts.algorithm.CGAlgorithms.distancePointLine2.apply(this,arguments)}if(A.x===B.x&&A.y===B.y){return p.distance(A)}var r,s;r=((p.x-A.x)*(B.x-A.x)+(p.y-A.y)*(B.y-A.y))/((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y));if(r<=0){return p.distance(A)}if(r>=1){return p.distance(B)}s=((A.y-p.y)*(B.x-A.x)-(A.x-p.x)*(B.y-A.y))/((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y));return Math.abs(s)*Math.sqrt((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y))};jsts.algorithm.CGAlgorithms.distancePointLinePerpendicular=function(p,A,B){var s=((A.y-p.y)*(B.x-A.x)-(A.x-p.x)*(B.y-A.y))/((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y));return Math.abs(s)*Math.sqrt((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y))
};jsts.algorithm.CGAlgorithms.distancePointLine2=function(p,line){var minDistance,i,il,dist;if(line.length===0){throw new jsts.error.IllegalArgumentError("Line array must contain at least one vertex")}minDistance=p.distance(line[0]);for(i=0,il=line.length-1;i<il;i++){dist=jsts.algorithm.CGAlgorithms.distancePointLine(p,line[i],line[i+1]);if(dist<minDistance){minDistance=dist}}return minDistance};jsts.algorithm.CGAlgorithms.distanceLineLine=function(A,B,C,D){if(A.equals(B)){return jsts.algorithm.CGAlgorithms.distancePointLine(A,C,D)}if(C.equals(D)){return jsts.algorithm.CGAlgorithms.distancePointLine(D,A,B)}var r_top,r_bot,s_top,s_bot,s,r;r_top=(A.y-C.y)*(D.x-C.x)-(A.x-C.x)*(D.y-C.y);r_bot=(B.x-A.x)*(D.y-C.y)-(B.y-A.y)*(D.x-C.x);s_top=(A.y-C.y)*(B.x-A.x)-(A.x-C.x)*(B.y-A.y);s_bot=(B.x-A.x)*(D.y-C.y)-(B.y-A.y)*(D.x-C.x);if(r_bot===0||s_bot===0){return Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(A,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(B,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(C,A,B),jsts.algorithm.CGAlgorithms.distancePointLine(D,A,B))))}s=s_top/s_bot;r=r_top/r_bot;if(r<0||r>1||s<0||s>1){return Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(A,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(B,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(C,A,B),jsts.algorithm.CGAlgorithms.distancePointLine(D,A,B))))}return 0};jsts.algorithm.CGAlgorithms.signedArea=function(ring){if(ring.length<3){return 0}var sum,i,il,bx,by,cx,cy;sum=0;for(i=0,il=ring.length-1;i<il;i++){bx=ring[i].x;by=ring[i].y;cx=ring[i+1].x;cy=ring[i+1].y;sum+=(bx+cx)*(cy-by)}return-sum/2};jsts.algorithm.CGAlgorithms.signedArea=function(ring){var n,sum,p,bx,by,i,cx,cy;n=ring.length;if(n<3){return 0}sum=0;p=ring[0];bx=p.x;by=p.y;for(i=1;i<n;i++){p=ring[i];cx=p.x;cy=p.y;sum+=(bx+cx)*(cy-by);bx=cx;by=cy}return-sum/2};jsts.algorithm.CGAlgorithms.computeLength=function(pts){var n=pts.length,len,x0,y0,x1,y1,dx,dy,p,i,il;if(n<=1){return 0}len=0;p=pts[0];x0=p.x;y0=p.y;i=1,il=n;for(i;i<n;i++){p=pts[i];x1=p.x;y1=p.y;dx=x1-x0;dy=y1-y0;len+=Math.sqrt(dx*dx+dy*dy);x0=x1;y0=y1}return len};jsts.algorithm.CGAlgorithms.length=function(){};jsts.algorithm.Angle=function(){};jsts.algorithm.Angle.PI_TIMES_2=2*Math.PI;jsts.algorithm.Angle.PI_OVER_2=Math.PI/2;jsts.algorithm.Angle.PI_OVER_4=Math.PI/4;jsts.algorithm.Angle.COUNTERCLOCKWISE=jsts.algorithm.CGAlgorithms.prototype.COUNTERCLOCKWISE;jsts.algorithm.Angle.CLOCKWISE=jsts.algorithm.CGAlgorithms.prototype.CLOCKWISE;jsts.algorithm.Angle.NONE=jsts.algorithm.CGAlgorithms.prototype.COLLINEAR;jsts.algorithm.Angle.toDegrees=function(radians){return radians*180/Math.PI};jsts.algorithm.Angle.toRadians=function(angleDegrees){return angleDegrees*Math.PI/180};jsts.algorithm.Angle.angle=function(){if(arguments.length===1){return jsts.algorithm.Angle.angleFromOrigo(arguments[0])}else{return jsts.algorithm.Angle.angleBetweenCoords(arguments[0],arguments[1])}};jsts.algorithm.Angle.angleBetweenCoords=function(p0,p1){var dx,dy;dx=p1.x-p0.x;dy=p1.y-p0.y;return Math.atan2(dy,dx)};jsts.algorithm.Angle.angleFromOrigo=function(p){return Math.atan2(p.y,p.x)};jsts.algorithm.Angle.isAcute=function(p0,p1,p2){var dx0,dy0,dx1,dy1,dotprod;dx0=p0.x-p1.x;dy0=p0.y-p1.y;dx1=p2.x-p1.x;dy1=p2.y-p1.y;dotprod=dx0*dx1+dy0*dy1;return dotprod>0};jsts.algorithm.Angle.isObtuse=function(p0,p1,p2){var dx0,dy0,dx1,dy1,dotprod;dx0=p0.x-p1.x;dy0=p0.y-p1.y;dx1=p2.x-p1.x;dy1=p2.y-p1.y;dotprod=dx0*dx1+dy0*dy1;return dotprod<0};jsts.algorithm.Angle.angleBetween=function(tip1,tail,tip2){var a1,a2;a1=jsts.algorithm.Angle.angle(tail,tip1);a2=jsts.algorithm.Angle.angle(tail,tip2);return jsts.algorithm.Angle.diff(a1,a2)};jsts.algorithm.Angle.angleBetweenOriented=function(tip1,tail,tip2){var a1,a2,angDel;a1=jsts.algorithm.Angle.angle(tail,tip1);a2=jsts.algorithm.Angle.angle(tail,tip2);angDel=a2-a1;if(angDel<=-Math.PI){return angDel+jsts.algorithm.Angle.PI_TIMES_2}if(angDel>Math.PI){return angDel-jsts.algorithm.Angle.PI_TIMES_2}return angDel};jsts.algorithm.Angle.interiorAngle=function(p0,p1,p2){var anglePrev,angleNext;anglePrev=jsts.algorithm.Angle.angle(p1,p0);angleNext=jsts.algorithm.Angle.angle(p1,p2);return Math.abs(angleNext-anglePrev)};jsts.algorithm.Angle.getTurn=function(ang1,ang2){var crossproduct=Math.sin(ang2-ang1);if(crossproduct>0){return jsts.algorithm.Angle.COUNTERCLOCKWISE}if(crossproduct<0){return jsts.algorithm.Angle.CLOCKWISE}return jsts.algorithm.Angle.NONE};jsts.algorithm.Angle.normalize=function(angle){while(angle>Math.PI){angle-=jsts.algorithm.Angle.PI_TIMES_2}while(angle<=-Math.PI){angle+=jsts.algorithm.Angle.PI_TIMES_2}return angle};jsts.algorithm.Angle.normalizePositive=function(angle){if(angle<0){while(angle<0){angle+=jsts.algorithm.Angle.PI_TIMES_2}if(angle>=jsts.algorithm.Angle.PI_TIMES_2){angle=0}}else{while(angle>=jsts.algorithm.Angle.PI_TIMES_2){angle-=jsts.algorithm.Angle.PI_TIMES_2}if(angle<0){angle=0}}return angle};jsts.algorithm.Angle.diff=function(ang1,ang2){var delAngle;if(ang1<ang2){delAngle=ang2-ang1}else{delAngle=ang1-ang2}if(delAngle>Math.PI){delAngle=2*Math.PI-delAngle}return delAngle};jsts.geom.GeometryComponentFilter=function(){};jsts.geom.GeometryComponentFilter.prototype.filter=function(geom){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.util.LinearComponentExtracter=function(lines,isForcedToLineString){this.lines=lines;this.isForcedToLineString=isForcedToLineString};jsts.geom.util.LinearComponentExtracter.prototype=new jsts.geom.GeometryComponentFilter;jsts.geom.util.LinearComponentExtracter.prototype.lines=null;jsts.geom.util.LinearComponentExtracter.prototype.isForcedToLineString=false;jsts.geom.util.LinearComponentExtracter.getLines=function(geoms,lines){if(arguments.length==1){return jsts.geom.util.LinearComponentExtracter.getLines5.apply(this,arguments)}else if(arguments.length==2&&typeof lines==="boolean"){return jsts.geom.util.LinearComponentExtracter.getLines6.apply(this,arguments)}else if(arguments.length==2&&geoms instanceof jsts.geom.Geometry){return jsts.geom.util.LinearComponentExtracter.getLines3.apply(this,arguments)}else if(arguments.length==3&&geoms instanceof jsts.geom.Geometry){return jsts.geom.util.LinearComponentExtracter.getLines4.apply(this,arguments)}else if(arguments.length==3){return jsts.geom.util.LinearComponentExtracter.getLines2.apply(this,arguments)}for(var i=0;i<geoms.length;i++){var g=geoms[i];jsts.geom.util.LinearComponentExtracter.getLines3(g,lines)}return lines};jsts.geom.util.LinearComponentExtracter.getLines2=function(geoms,lines,forceToLineString){for(var i=0;i<geoms.length;i++){var g=geoms[i];jsts.geom.util.LinearComponentExtracter.getLines4(g,lines,forceToLineString)}return lines};jsts.geom.util.LinearComponentExtracter.getLines3=function(geom,lines){if(geom instanceof LineString){lines.add(geom)}else{geom.apply(new jsts.geom.util.LinearComponentExtracter(lines))}return lines};jsts.geom.util.LinearComponentExtracter.getLines4=function(geom,lines,forceToLineString){geom.apply(new jsts.geom.util.LinearComponentExtracter(lines,forceToLineString));return lines};jsts.geom.util.LinearComponentExtracter.getLines5=function(geom){return jsts.geom.util.LinearComponentExtracter.getLines6(geom,false)};jsts.geom.util.LinearComponentExtracter.getLines6=function(geom,forceToLineString){var lines=[];geom.apply(new jsts.geom.util.LinearComponentExtracter(lines,forceToLineString));return lines};jsts.geom.util.LinearComponentExtracter.prototype.setForceToLineString=function(isForcedToLineString){this.isForcedToLineString=isForcedToLineString};jsts.geom.util.LinearComponentExtracter.prototype.filter=function(geom){if(this.isForcedToLineString&&geom instanceof jsts.geom.LinearRing){var line=geom.getFactory().createLineString(geom.getCoordinateSequence());this.lines.push(line);return}if(geom instanceof jsts.geom.LineString||geom instanceof jsts.geom.LinearRing)this.lines.push(geom)};jsts.geom.Location=function(){};jsts.geom.Location.INTERIOR=0;jsts.geom.Location.BOUNDARY=1;jsts.geom.Location.EXTERIOR=2;jsts.geom.Location.NONE=-1;jsts.geom.Location.toLocationSymbol=function(locationValue){switch(locationValue){case jsts.geom.Location.EXTERIOR:return"e";case jsts.geom.Location.BOUNDARY:return"b";case jsts.geom.Location.INTERIOR:return"i";case jsts.geom.Location.NONE:return"-"}throw new jsts.IllegalArgumentError("Unknown location value: "+locationValue)};(function(){jsts.io.GeoJSONReader=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory;this.precisionModel=this.geometryFactory.getPrecisionModel();this.parser=new jsts.io.GeoJSONParser(this.geometryFactory)};jsts.io.GeoJSONReader.prototype.read=function(geoJson){var geometry=this.parser.read(geoJson);if(this.precisionModel.getType()===jsts.geom.PrecisionModel.FIXED){this.reducePrecision(geometry)}return geometry};jsts.io.GeoJSONReader.prototype.reducePrecision=function(geometry){var i,len;if(geometry.coordinate){this.precisionModel.makePrecise(geometry.coordinate)}else if(geometry.points){for(i=0,len=geometry.points.length;i<len;i++){this.precisionModel.makePrecise(geometry.points[i])}}else if(geometry.geometries){for(i=0,len=geometry.geometries.length;i<len;i++){this.reducePrecision(geometry.geometries[i])}}}})();jsts.geom.Geometry=function(factory){this.factory=factory};jsts.geom.Geometry.prototype.envelope=null;jsts.geom.Geometry.prototype.factory=null;jsts.geom.Geometry.prototype.getGeometryType=function(){return"Geometry"};jsts.geom.Geometry.hasNonEmptyElements=function(geometries){var i;for(i=0;i<geometries.length;i++){if(!geometries[i].isEmpty()){return true}}return false};jsts.geom.Geometry.hasNullElements=function(array){var i;for(i=0;i<array.length;i++){if(array[i]===null){return true}}return false};jsts.geom.Geometry.prototype.getFactory=function(){if(this.factory===null||this.factory===undefined){this.factory=new jsts.geom.GeometryFactory}return this.factory};jsts.geom.Geometry.prototype.getNumGeometries=function(){return 1};jsts.geom.Geometry.prototype.getGeometryN=function(n){return this};jsts.geom.Geometry.prototype.getPrecisionModel=function(){return this.getFactory().getPrecisionModel()};jsts.geom.Geometry.prototype.getCoordinate=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getCoordinates=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getNumPoints=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.isSimple=function(){this.checkNotGeometryCollection(this);var op=new jsts.operation.IsSimpleOp(this);return op.isSimple()};jsts.geom.Geometry.prototype.isValid=function(){var isValidOp=new jsts.operation.valid.IsValidOp(this);return isValidOp.isValid()};jsts.geom.Geometry.prototype.isEmpty=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.distance=function(g){return jsts.operation.distance.DistanceOp.distance(this,g)};jsts.geom.Geometry.prototype.isWithinDistance=function(geom,distance){var envDist=this.getEnvelopeInternal().distance(geom.getEnvelopeInternal());if(envDist>distance){return false}return DistanceOp.isWithinDistance(this,geom,distance)};jsts.geom.Geometry.prototype.isRectangle=function(){return false};jsts.geom.Geometry.prototype.getArea=function(){return 0};jsts.geom.Geometry.prototype.getLength=function(){return 0};jsts.geom.Geometry.prototype.getCentroid=function(){if(this.isEmpty()){return null}var cent;var centPt=null;var dim=this.getDimension();if(dim===0){cent=new jsts.algorithm.CentroidPoint;cent.add(this);centPt=cent.getCentroid()}else if(dim===1){cent=new jsts.algorithm.CentroidLine;cent.add(this);centPt=cent.getCentroid()}else{cent=new jsts.algorithm.CentroidArea;cent.add(this);centPt=cent.getCentroid()}return this.createPointFromInternalCoord(centPt,this)};jsts.geom.Geometry.prototype.getInteriorPoint=function(){var intPt;var interiorPt=null;var dim=this.getDimension();if(dim===0){intPt=new jsts.algorithm.InteriorPointPoint(this);interiorPt=intPt.getInteriorPoint()}else if(dim===1){intPt=new jsts.algorithm.InteriorPointLine(this);interiorPt=intPt.getInteriorPoint()}else{intPt=new jsts.algorithm.InteriorPointArea(this);interiorPt=intPt.getInteriorPoint()}return this.createPointFromInternalCoord(interiorPt,this)};jsts.geom.Geometry.prototype.getDimension=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getBoundary=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getBoundaryDimension=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getEnvelope=function(){return this.getFactory().toGeometry(this.getEnvelopeInternal())};jsts.geom.Geometry.prototype.getEnvelopeInternal=function(){if(this.envelope===null){this.envelope=this.computeEnvelopeInternal()}return this.envelope};jsts.geom.Geometry.prototype.disjoint=function(g){return!this.intersects(g)};jsts.geom.Geometry.prototype.touches=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false}return this.relate(g).isTouches(this.getDimension(),g.getDimension())};jsts.geom.Geometry.prototype.intersects=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false}if(this.isRectangle()){return RectangleIntersects.intersects(this,g)}if(g.isRectangle()){return RectangleIntersects.intersects(g,this)}return this.relate(g).isIntersects()};jsts.geom.Geometry.prototype.crosses=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false}return this.relate(g).isCrosses(this.getDimension(),g.getDimension())};jsts.geom.Geometry.prototype.within=function(g){return g.contains(this)};jsts.geom.Geometry.prototype.contains=function(g){if(!this.getEnvelopeInternal().contains(g.getEnvelopeInternal())){return false}if(this.isRectangle()){return RectangleContains.contains(this,g)}return this.relate(g).isContains()};jsts.geom.Geometry.prototype.overlaps=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false}return this.relate(g).isOverlaps(this.getDimension(),g.getDimension())};jsts.geom.Geometry.prototype.covers=function(g){if(!this.getEnvelopeInternal().covers(g.getEnvelopeInternal())){return false}if(this.isRectangle()){return true}return this.relate(g).isCovers()};jsts.geom.Geometry.prototype.coveredBy=function(g){return g.covers(this)};jsts.geom.Geometry.prototype.relate=function(g,intersectionPattern){if(arguments.length===1){return this.relate2.apply(this,arguments)}return this.relate2(g).matches(intersectionPattern)};jsts.geom.Geometry.prototype.relate2=function(g){this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(g);return jsts.operation.relate.RelateOp.relate(this,g)};jsts.geom.Geometry.prototype.equalsTopo=function(g){if(!this.getEnvelopeInternal().equals(g.getEnvelopeInternal())){return false}return this.relate(g).isEquals(this.getDimension(),g.getDimension())};jsts.geom.Geometry.prototype.equals=function(o){if(o instanceof jsts.geom.Geometry||o instanceof jsts.geom.LinearRing||o instanceof jsts.geom.Polygon||o instanceof jsts.geom.GeometryCollection||o instanceof jsts.geom.MultiPoint||o instanceof jsts.geom.MultiLineString||o instanceof jsts.geom.MultiPolygon){return this.equalsExact(o)}return false};jsts.geom.Geometry.prototype.buffer=function(distance,quadrantSegments,endCapStyle){var params=new jsts.operation.buffer.BufferParameters(quadrantSegments,endCapStyle);return jsts.operation.buffer.BufferOp.bufferOp2(this,distance,params)};jsts.geom.Geometry.prototype.convexHull=function(){return new jsts.algorithm.ConvexHull(this).getConvexHull()};jsts.geom.Geometry.prototype.intersection=function(other){if(this.isEmpty()){return this.getFactory().createGeometryCollection(null)}if(other.isEmpty()){return this.getFactory().createGeometryCollection(null)}if(this.isGeometryCollection(this)){var g2=other}this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(other);return jsts.operation.overlay.snap.SnapIfNeededOverlayOp.overlayOp(this,other,jsts.operation.overlay.OverlayOp.INTERSECTION)};jsts.geom.Geometry.prototype.union=function(other){if(arguments.length===0){return jsts.operation.union.UnaryUnionOp.union(this)}if(this.isEmpty()){return other.clone()}if(other.isEmpty()){return this.clone()}this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(other);return jsts.operation.overlay.snap.SnapIfNeededOverlayOp.overlayOp(this,other,jsts.operation.overlay.OverlayOp.UNION)};jsts.geom.Geometry.prototype.difference=function(other){if(this.isEmpty()){return this.getFactory().createGeometryCollection(null)}if(other.isEmpty()){return this.clone()}this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(other);return jsts.operation.overlay.snap.SnapIfNeededOverlayOp.overlayOp(this,other,jsts.operation.overlay.OverlayOp.DIFFERENCE)};jsts.geom.Geometry.prototype.symDifference=function(other){if(this.isEmpty()){return other.clone()}if(other.isEmpty()){return this.clone()}this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(other);return jsts.operation.overlay.snap.SnapIfNeededOverlayOp.overlayOp(this,other,jsts.operation.overlay.OverlayOp.SYMDIFFERENCE)};jsts.geom.Geometry.prototype.equalsExact=function(other,tolerance){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.equalsNorm=function(g){if(g===null||g===undefined)return false;return this.norm().equalsExact(g.norm())};jsts.geom.Geometry.prototype.apply=function(filter){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.clone=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.normalize=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.norm=function(){var copy=this.clone();copy.normalize();return copy};jsts.geom.Geometry.prototype.compareTo=function(o){var other=o;if(this.getClassSortIndex()!==other.getClassSortIndex()){return this.getClassSortIndex()-other.getClassSortIndex()}if(this.isEmpty()&&other.isEmpty()){return 0}if(this.isEmpty()){return-1}if(other.isEmpty()){return 1}return this.compareToSameClass(o)};jsts.geom.Geometry.prototype.isEquivalentClass=function(other){if(this instanceof jsts.geom.Point&&other instanceof jsts.geom.Point){return true}else if(this instanceof jsts.geom.LineString&&other instanceof jsts.geom.LineString|other instanceof jsts.geom.LinearRing){return true}else if(this instanceof jsts.geom.LinearRing&&other instanceof jsts.geom.LineString|other instanceof jsts.geom.LinearRing){return true}else if(this instanceof jsts.geom.Polygon&&other instanceof jsts.geom.Polygon){return true}else if(this instanceof jsts.geom.MultiPoint&&other instanceof jsts.geom.MultiPoint){return true}else if(this instanceof jsts.geom.MultiLineString&&other instanceof jsts.geom.MultiLineString){return true}else if(this instanceof jsts.geom.MultiPolygon&&other instanceof jsts.geom.MultiPolygon){return true}else if(this instanceof jsts.geom.GeometryCollection&&other instanceof jsts.geom.GeometryCollection){return true}return false};jsts.geom.Geometry.prototype.checkNotGeometryCollection=function(g){if(g.isGeometryCollectionBase()){throw new jsts.error.IllegalArgumentError("This method does not support GeometryCollection")}};jsts.geom.Geometry.prototype.isGeometryCollection=function(){return this instanceof jsts.geom.GeometryCollection};jsts.geom.Geometry.prototype.isGeometryCollectionBase=function(){return this.CLASS_NAME==="jsts.geom.GeometryCollection"};jsts.geom.Geometry.prototype.computeEnvelopeInternal=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.compareToSameClass=function(o){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.compare=function(a,b){var i=a.iterator();var j=b.iterator();while(i.hasNext()&&j.hasNext()){var aElement=i.next();var bElement=j.next();var comparison=aElement.compareTo(bElement);if(comparison!==0){return comparison}}if(i.hasNext()){return 1}if(j.hasNext()){return-1}return 0};jsts.geom.Geometry.prototype.equal=function(a,b,tolerance){if(tolerance===undefined||tolerance===null||tolerance===0){return a.equals(b)}return a.distance(b)<=tolerance};jsts.geom.Geometry.prototype.getClassSortIndex=function(){var sortedClasses=[jsts.geom.Point,jsts.geom.MultiPoint,jsts.geom.LineString,jsts.geom.LinearRing,jsts.geom.MultiLineString,jsts.geom.Polygon,jsts.geom.MultiPolygon,jsts.geom.GeometryCollection];for(var i=0;i<sortedClasses.length;i++){if(this instanceof sortedClasses[i])return i}jsts.util.Assert.shouldNeverReachHere("Class not supported: "+this);return-1};jsts.geom.Geometry.prototype.toString=function(){return(new jsts.io.WKTWriter).write(this)};jsts.geom.Geometry.prototype.createPointFromInternalCoord=function(coord,exemplar){exemplar.getPrecisionModel().makePrecise(coord);return exemplar.getFactory().createPoint(coord)};(function(){jsts.geom.Coordinate=function(x,y){if(typeof x==="number"){this.x=x;this.y=y}else if(x instanceof jsts.geom.Coordinate){this.x=parseFloat(x.x);this.y=parseFloat(x.y)}else if(x===undefined||x===null){this.x=0;this.y=0}else if(typeof x==="string"){this.x=parseFloat(x);this.y=parseFloat(y)}};jsts.geom.Coordinate.prototype.setCoordinate=function(other){this.x=other.x;this.y=other.y};jsts.geom.Coordinate.prototype.clone=function(){return new jsts.geom.Coordinate(this.x,this.y)};jsts.geom.Coordinate.prototype.distance=function(p){var dx=this.x-p.x;var dy=this.y-p.y;return Math.sqrt(dx*dx+dy*dy)};jsts.geom.Coordinate.prototype.equals2D=function(other){if(this.x!==other.x){return false}if(this.y!==other.y){return false}return true};jsts.geom.Coordinate.prototype.equals=function(other){if(!other instanceof jsts.geom.Coordinate||other===undefined){return false}return this.equals2D(other)};jsts.geom.Coordinate.prototype.compareTo=function(other){if(this.x<other.x){return-1}if(this.x>other.x){return 1}if(this.y<other.y){return-1}if(this.y>other.y){return 1}return 0};jsts.geom.Coordinate.prototype.toString=function(){return"("+this.x+", "+this.y+")"}})();jsts.geom.Envelope=function(){jsts.geom.Envelope.prototype.init.apply(this,arguments)};jsts.geom.Envelope.prototype.minx=null;jsts.geom.Envelope.prototype.maxx=null;jsts.geom.Envelope.prototype.miny=null;jsts.geom.Envelope.prototype.maxy=null;jsts.geom.Envelope.prototype.init=function(){if(typeof arguments[0]==="number"&&arguments.length===4){this.initFromValues(arguments[0],arguments[1],arguments[2],arguments[3])}else if(arguments[0]instanceof jsts.geom.Coordinate&&arguments.length===1){this.initFromCoordinate(arguments[0])}else if(arguments[0]instanceof jsts.geom.Coordinate&&arguments.length===2){this.initFromCoordinates(arguments[0],arguments[1])}else if(arguments[0]instanceof jsts.geom.Envelope&&arguments.length===1){this.initFromEnvelope(arguments[0])}else{this.setToNull()}};jsts.geom.Envelope.prototype.initFromValues=function(x1,x2,y1,y2){if(x1<x2){this.minx=x1;this.maxx=x2}else{this.minx=x2;this.maxx=x1}if(y1<y2){this.miny=y1;this.maxy=y2}else{this.miny=y2;this.maxy=y1}};jsts.geom.Envelope.prototype.initFromCoordinates=function(p1,p2){this.initFromValues(p1.x,p2.x,p1.y,p2.y)};jsts.geom.Envelope.prototype.initFromCoordinate=function(p){this.initFromValues(p.x,p.x,p.y,p.y)};jsts.geom.Envelope.prototype.initFromEnvelope=function(env){this.minx=env.minx;this.maxx=env.maxx;this.miny=env.miny;this.maxy=env.maxy};jsts.geom.Envelope.prototype.setToNull=function(){this.minx=0;this.maxx=-1;this.miny=0;this.maxy=-1};jsts.geom.Envelope.prototype.isNull=function(){return this.maxx<this.minx};jsts.geom.Envelope.prototype.getHeight=function(){if(this.isNull()){return 0}return this.maxy-this.miny};jsts.geom.Envelope.prototype.getWidth=function(){if(this.isNull()){return 0}return this.maxx-this.minx};jsts.geom.Envelope.prototype.getMinX=function(){return this.minx};jsts.geom.Envelope.prototype.getMaxX=function(){return this.maxx};jsts.geom.Envelope.prototype.getMinY=function(){return this.miny};jsts.geom.Envelope.prototype.getMaxY=function(){return this.maxy};jsts.geom.Envelope.prototype.getArea=function(){return this.getWidth()*this.getHeight()};jsts.geom.Envelope.prototype.expandToInclude=function(){if(arguments[0]instanceof jsts.geom.Coordinate){this.expandToIncludeCoordinate(arguments[0])}else if(arguments[0]instanceof jsts.geom.Envelope){this.expandToIncludeEnvelope(arguments[0])}else{this.expandToIncludeValues(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.expandToIncludeCoordinate=function(p){this.expandToIncludeValues(p.x,p.y)};jsts.geom.Envelope.prototype.expandToIncludeValues=function(x,y){if(this.isNull()){this.minx=x;this.maxx=x;this.miny=y;this.maxy=y}else{if(x<this.minx){this.minx=x}if(x>this.maxx){this.maxx=x}if(y<this.miny){this.miny=y}if(y>this.maxy){this.maxy=y}}};jsts.geom.Envelope.prototype.expandToIncludeEnvelope=function(other){if(other.isNull()){return}if(this.isNull()){this.minx=other.getMinX();this.maxx=other.getMaxX();this.miny=other.getMinY();this.maxy=other.getMaxY()}else{if(other.minx<this.minx){this.minx=other.minx}if(other.maxx>this.maxx){this.maxx=other.maxx}if(other.miny<this.miny){this.miny=other.miny}if(other.maxy>this.maxy){this.maxy=other.maxy}}};jsts.geom.Envelope.prototype.expandBy=function(){if(arguments.length===1){this.expandByDistance(arguments[0])}else{this.expandByDistances(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.expandByDistance=function(distance){this.expandByDistances(distance,distance)};jsts.geom.Envelope.prototype.expandByDistances=function(deltaX,deltaY){if(this.isNull()){return}this.minx-=deltaX;this.maxx+=deltaX;this.miny-=deltaY;this.maxy+=deltaY;if(this.minx>this.maxx||this.miny>this.maxy){this.setToNull()}};jsts.geom.Envelope.prototype.translate=function(transX,transY){if(this.isNull()){return}this.init(this.minx+transX,this.maxx+transX,this.miny+transY,this.maxy+transY)};jsts.geom.Envelope.prototype.centre=function(){if(this.isNull()){return null}return new jsts.geom.Coordinate((this.minx+this.maxx)/2,(this.miny+this.maxy)/2)};jsts.geom.Envelope.prototype.intersection=function(env){if(this.isNull()||env.isNull()||!this.intersects(env)){return new jsts.geom.Envelope}var intMinX=this.minx>env.minx?this.minx:env.minx;var intMinY=this.miny>env.miny?this.miny:env.miny;var intMaxX=this.maxx<env.maxx?this.maxx:env.maxx;var intMaxY=this.maxy<env.maxy?this.maxy:env.maxy;return new jsts.geom.Envelope(intMinX,intMaxX,intMinY,intMaxY)};jsts.geom.Envelope.prototype.intersects=function(){if(arguments[0]instanceof jsts.geom.Envelope){return this.intersectsEnvelope(arguments[0])}else if(arguments[0]instanceof jsts.geom.Coordinate){return this.intersectsCoordinate(arguments[0])}else{return this.intersectsValues(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.intersectsEnvelope=function(other){if(this.isNull()||other.isNull()){return false}var result=!(other.minx>this.maxx||other.maxx<this.minx||other.miny>this.maxy||other.maxy<this.miny);return result};jsts.geom.Envelope.prototype.intersectsCoordinate=function(p){return this.intersectsValues(p.x,p.y)};jsts.geom.Envelope.prototype.intersectsValues=function(x,y){if(this.isNull()){return false}return!(x>this.maxx||x<this.minx||y>this.maxy||y<this.miny)};jsts.geom.Envelope.prototype.contains=function(){if(arguments[0]instanceof jsts.geom.Envelope){return this.containsEnvelope(arguments[0])}else if(arguments[0]instanceof jsts.geom.Coordinate){return this.containsCoordinate(arguments[0])}else{return this.containsValues(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.containsEnvelope=function(other){return this.coversEnvelope(other)};jsts.geom.Envelope.prototype.containsCoordinate=function(p){return this.coversCoordinate(p)};jsts.geom.Envelope.prototype.containsValues=function(x,y){return this.coversValues(x,y)};jsts.geom.Envelope.prototype.covers=function(){if(arguments[0]instanceof jsts.geom.Envelope){this.coversEnvelope(arguments[0])}else if(arguments[0]instanceof jsts.geom.Coordinate){this.coversCoordinate(arguments[0])}else{this.coversValues(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.coversValues=function(x,y){if(this.isNull()){return false}return x>=this.minx&&x<=this.maxx&&y>=this.miny&&y<=this.maxy};jsts.geom.Envelope.prototype.coversCoordinate=function(p){return this.coversValues(p.x,p.y)};jsts.geom.Envelope.prototype.coversEnvelope=function(other){if(this.isNull()||other.isNull()){return false}return other.minx>=this.minx&&other.maxx<=this.maxx&&other.miny>=this.miny&&other.maxy<=this.maxy};jsts.geom.Envelope.prototype.distance=function(env){if(this.intersects(env)){return 0}var dx=0;if(this.maxx<env.minx){dx=env.minx-this.maxx}if(this.minx>env.maxx){dx=this.minx-env.maxx}var dy=0;if(this.maxy<env.miny){dy=env.miny-this.maxy}if(this.miny>env.maxy){dy=this.miny-env.maxy}if(dx===0){return dy}if(dy===0){return dx}return Math.sqrt(dx*dx+dy*dy)};jsts.geom.Envelope.prototype.equals=function(other){if(this.isNull()){return other.isNull()}return this.maxx===other.maxx&&this.maxy===other.maxy&&this.minx===other.minx&&this.miny===other.miny};jsts.geom.Envelope.prototype.toString=function(){return"Env["+this.minx+" : "+this.maxx+", "+this.miny+" : "+this.maxy+"]"};jsts.geom.Envelope.intersects=function(p1,p2,q){if(arguments.length===4){return jsts.geom.Envelope.intersectsEnvelope(arguments[0],arguments[1],arguments[2],arguments[3])}var xc1=p1.x<p2.x?p1.x:p2.x;var xc2=p1.x>p2.x?p1.x:p2.x;var yc1=p1.y<p2.y?p1.y:p2.y;var yc2=p1.y>p2.y?p1.y:p2.y;if(q.x>=xc1&&q.x<=xc2&&(q.y>=yc1&&q.y<=yc2)){return true}return false};jsts.geom.Envelope.intersectsEnvelope=function(p1,p2,q1,q2){var minq=Math.min(q1.x,q2.x);var maxq=Math.max(q1.x,q2.x);var minp=Math.min(p1.x,p2.x);var maxp=Math.max(p1.x,p2.x);if(minp>maxq){return false}if(maxp<minq){return false}minq=Math.min(q1.y,q2.y);maxq=Math.max(q1.y,q2.y);minp=Math.min(p1.y,p2.y);maxp=Math.max(p1.y,p2.y);if(minp>maxq){return false}if(maxp<minq){return false}return true};jsts.geom.Envelope.prototype.clone=function(){return new jsts.geom.Envelope(this.minx,this.maxx,this.miny,this.maxy)};jsts.geom.util.GeometryCombiner=function(geoms){this.geomFactory=jsts.geom.util.GeometryCombiner.extractFactory(geoms);this.inputGeoms=geoms};jsts.geom.util.GeometryCombiner.combine=function(geoms){if(arguments.length>1)return this.combine2.apply(this,arguments);var combiner=new jsts.geom.util.GeometryCombiner(geoms);return combiner.combine()};jsts.geom.util.GeometryCombiner.combine2=function(){var arrayList=new javascript.util.ArrayList;Array.prototype.slice.call(arguments).forEach(function(a){arrayList.add(a)});var combiner=new jsts.geom.util.GeometryCombiner(arrayList);return combiner.combine()};jsts.geom.util.GeometryCombiner.prototype.geomFactory=null;jsts.geom.util.GeometryCombiner.prototype.skipEmpty=false;jsts.geom.util.GeometryCombiner.prototype.inputGeoms;jsts.geom.util.GeometryCombiner.extractFactory=function(geoms){if(geoms.isEmpty())return null;return geoms.iterator().next().getFactory()};jsts.geom.util.GeometryCombiner.prototype.combine=function(){var elems=new javascript.util.ArrayList,i;for(i=this.inputGeoms.iterator();i.hasNext();){var g=i.next();this.extractElements(g,elems)}if(elems.size()===0){if(this.geomFactory!==null){return this.geomFactory.createGeometryCollection(null)}return null}return this.geomFactory.buildGeometry(elems)};jsts.geom.util.GeometryCombiner.prototype.extractElements=function(geom,elems){if(geom===null){return}for(var i=0;i<geom.getNumGeometries();i++){var elemGeom=geom.getGeometryN(i);if(this.skipEmpty&&elemGeom.isEmpty()){continue}elems.add(elemGeom)}};jsts.geom.PrecisionModel=function(modelType){if(typeof modelType==="number"){this.modelType=jsts.geom.PrecisionModel.FIXED;this.scale=modelType;return}this.modelType=modelType||jsts.geom.PrecisionModel.FLOATING;if(this.modelType===jsts.geom.PrecisionModel.FIXED){this.scale=1
}};jsts.geom.PrecisionModel.FLOATING="FLOATING";jsts.geom.PrecisionModel.FIXED="FIXED";jsts.geom.PrecisionModel.FLOATING_SINGLE="FLOATING_SINGLE";jsts.geom.PrecisionModel.prototype.scale=null;jsts.geom.PrecisionModel.prototype.modelType=null;jsts.geom.PrecisionModel.prototype.isFloating=function(){return this.modelType===jsts.geom.PrecisionModel.FLOATING||this.modelType===jsts.geom.PrecisionModel.FLOATING_SINLGE};jsts.geom.PrecisionModel.prototype.getScale=function(){return this.scale};jsts.geom.PrecisionModel.prototype.getType=function(){return this.modelType};jsts.geom.PrecisionModel.prototype.equals=function(other){return true;if(!(other instanceof jsts.geom.PrecisionModel)){return false}var otherPrecisionModel=other;return this.modelType===otherPrecisionModel.modelType&&this.scale===otherPrecisionModel.scale};jsts.geom.PrecisionModel.prototype.makePrecise=function(val){if(val instanceof jsts.geom.Coordinate){this.makePrecise2(val);return}if(isNaN(val))return val;if(this.modelType===jsts.geom.PrecisionModel.FIXED){return Math.round(val*this.scale)/this.scale}return val};jsts.geom.PrecisionModel.prototype.makePrecise2=function(coord){if(this.modelType===jsts.geom.PrecisionModel.FLOATING)return;coord.x=this.makePrecise(coord.x);coord.y=this.makePrecise(coord.y)};jsts.geom.PrecisionModel.prototype.compareTo=function(o){var other=o;return 0};jsts.geom.CoordinateFilter=function(){};jsts.geom.CoordinateFilter.prototype.filter=function(coord){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Point=function(coordinate,factory){this.factory=factory;if(coordinate===undefined)return;this.coordinate=coordinate};jsts.geom.Point.prototype=new jsts.geom.Geometry;jsts.geom.Point.constructor=jsts.geom.Point;jsts.geom.Point.CLASS_NAME="jsts.geom.Point";jsts.geom.Point.prototype.coordinate=null;jsts.geom.Point.prototype.getX=function(){return this.coordinate.x};jsts.geom.Point.prototype.getY=function(){return this.coordinate.y};jsts.geom.Point.prototype.getCoordinate=function(){return this.coordinate};jsts.geom.Point.prototype.getCoordinates=function(){return this.isEmpty()?[]:[this.coordinate]};jsts.geom.Point.prototype.isEmpty=function(){return this.coordinate===null};jsts.geom.Point.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}if(this.isEmpty()&&other.isEmpty()){return true}return this.equal(other.getCoordinate(),this.getCoordinate(),tolerance)};jsts.geom.Point.prototype.getNumPoints=function(){return this.isEmpty()?0:1};jsts.geom.Point.prototype.isSimple=function(){return true};jsts.geom.Point.prototype.getBoundary=function(){return new jsts.geom.GeometryCollection(null)};jsts.geom.Point.prototype.computeEnvelopeInternal=function(){if(this.isEmpty()){return new jsts.geom.Envelope}return new jsts.geom.Envelope(this.coordinate)};jsts.geom.Point.prototype.apply=function(filter){if(filter instanceof jsts.geom.GeometryFilter||filter instanceof jsts.geom.GeometryComponentFilter){filter.filter(this)}else if(filter instanceof jsts.geom.CoordinateFilter){if(this.isEmpty()){return}filter.filter(this.getCoordinate())}};jsts.geom.Point.prototype.clone=function(){return new jsts.geom.Point(this.coordinate.clone(),this.factory)};jsts.geom.Point.prototype.getDimension=function(){return 0};jsts.geom.Point.prototype.getBoundaryDimension=function(){return jsts.geom.Dimension.FALSE};jsts.geom.Point.prototype.reverse=function(){return this.clone()};jsts.geom.Point.prototype.isValid=function(){if(!jsts.operation.valid.IsValidOp.isValid(this.getCoordinate())){return false}return true};jsts.geom.Point.prototype.normalize=function(){};jsts.geom.Point.prototype.compareToSameClass=function(other){var point=other;return this.getCoordinate().compareTo(point.getCoordinate())};jsts.geom.Point.prototype.getGeometryType=function(){return"Point"};jsts.geom.Point.prototype.hashCode=function(){return"Point_"+this.coordinate.hashCode()};jsts.geom.Point.prototype.CLASS_NAME="jsts.geom.Point";jsts.geomgraph.EdgeIntersection=function(coord,segmentIndex,dist){this.coord=new jsts.geom.Coordinate(coord);this.segmentIndex=segmentIndex;this.dist=dist};jsts.geomgraph.EdgeIntersection.prototype.coord=null;jsts.geomgraph.EdgeIntersection.prototype.segmentIndex=null;jsts.geomgraph.EdgeIntersection.prototype.dist=null;jsts.geomgraph.EdgeIntersection.prototype.getCoordinate=function(){return this.coord};jsts.geomgraph.EdgeIntersection.prototype.getSegmentIndex=function(){return this.segmentIndex};jsts.geomgraph.EdgeIntersection.prototype.getDistance=function(){return this.dist};jsts.geomgraph.EdgeIntersection.prototype.compareTo=function(other){return this.compare(other.segmentIndex,other.dist)};jsts.geomgraph.EdgeIntersection.prototype.compare=function(segmentIndex,dist){if(this.segmentIndex<segmentIndex)return-1;if(this.segmentIndex>segmentIndex)return 1;if(this.dist<dist)return-1;if(this.dist>dist)return 1;return 0};jsts.geomgraph.EdgeIntersection.prototype.isEndPoint=function(maxSegmentIndex){if(this.segmentIndex===0&&this.dist===0)return true;if(this.segmentIndex===maxSegmentIndex)return true;return false};jsts.geomgraph.EdgeIntersection.prototype.toString=function(){return""+this.segmentIndex+this.dist};(function(){var EdgeIntersection=jsts.geomgraph.EdgeIntersection;var TreeMap=javascript.util.TreeMap;jsts.geomgraph.EdgeIntersectionList=function(edge){this.nodeMap=new TreeMap;this.edge=edge};jsts.geomgraph.EdgeIntersectionList.prototype.nodeMap=null;jsts.geomgraph.EdgeIntersectionList.prototype.edge=null;jsts.geomgraph.EdgeIntersectionList.prototype.isIntersection=function(pt){for(var it=this.iterator();it.hasNext();){var ei=it.next();if(ei.coord.equals(pt)){return true}}return false};jsts.geomgraph.EdgeIntersectionList.prototype.add=function(intPt,segmentIndex,dist){var eiNew=new EdgeIntersection(intPt,segmentIndex,dist);var ei=this.nodeMap.get(eiNew);if(ei!==null){return ei}this.nodeMap.put(eiNew,eiNew);return eiNew};jsts.geomgraph.EdgeIntersectionList.prototype.iterator=function(){return this.nodeMap.values().iterator()};jsts.geomgraph.EdgeIntersectionList.prototype.addEndpoints=function(){var maxSegIndex=this.edge.pts.length-1;this.add(this.edge.pts[0],0,0);this.add(this.edge.pts[maxSegIndex],maxSegIndex,0)};jsts.geomgraph.EdgeIntersectionList.prototype.addSplitEdges=function(edgeList){this.addEndpoints();var it=this.iterator();var eiPrev=it.next();while(it.hasNext()){var ei=it.next();var newEdge=this.createSplitEdge(eiPrev,ei);edgeList.add(newEdge);eiPrev=ei}};jsts.geomgraph.EdgeIntersectionList.prototype.createSplitEdge=function(ei0,ei1){var npts=ei1.segmentIndex-ei0.segmentIndex+2;var lastSegStartPt=this.edge.pts[ei1.segmentIndex];var useIntPt1=ei1.dist>0||!ei1.coord.equals2D(lastSegStartPt);if(!useIntPt1){npts--}var pts=[];var ipt=0;pts[ipt++]=new jsts.geom.Coordinate(ei0.coord);for(var i=ei0.segmentIndex+1;i<=ei1.segmentIndex;i++){pts[ipt++]=this.edge.pts[i]}if(useIntPt1)pts[ipt]=ei1.coord;return new jsts.geomgraph.Edge(pts,new jsts.geomgraph.Label(this.edge.label))}})();(function(){var AssertionFailedException=function(message){this.message=message};AssertionFailedException.prototype=new Error;AssertionFailedException.prototype.name="AssertionFailedException";jsts.util.AssertionFailedException=AssertionFailedException})();(function(){var AssertionFailedException=jsts.util.AssertionFailedException;jsts.util.Assert=function(){};jsts.util.Assert.isTrue=function(assertion,message){if(!assertion){if(message===null){throw new AssertionFailedException}else{throw new AssertionFailedException(message)}}};jsts.util.Assert.equals=function(expectedValue,actualValue,message){if(!actualValue.equals(expectedValue)){throw new AssertionFailedException("Expected "+expectedValue+" but encountered "+actualValue+(message!=null?": "+message:""))}};jsts.util.Assert.shouldNeverReachHere=function(message){throw new AssertionFailedException("Should never reach here"+(message!=null?": "+message:""))}})();(function(){var Location=jsts.geom.Location;var Assert=jsts.util.Assert;var ArrayList=javascript.util.ArrayList;jsts.operation.relate.RelateComputer=function(arg){this.li=new jsts.algorithm.RobustLineIntersector;this.ptLocator=new jsts.algorithm.PointLocator;this.nodes=new jsts.geomgraph.NodeMap(new jsts.operation.relate.RelateNodeFactory);this.isolatedEdges=new ArrayList;this.arg=arg};jsts.operation.relate.RelateComputer.prototype.li=null;jsts.operation.relate.RelateComputer.prototype.ptLocator=null;jsts.operation.relate.RelateComputer.prototype.arg=null;jsts.operation.relate.RelateComputer.prototype.nodes=null;jsts.operation.relate.RelateComputer.prototype.im=null;jsts.operation.relate.RelateComputer.prototype.isolatedEdges=null;jsts.operation.relate.RelateComputer.prototype.invalidPoint=null;jsts.operation.relate.RelateComputer.prototype.computeIM=function(){var im=new jsts.geom.IntersectionMatrix;im.set(Location.EXTERIOR,Location.EXTERIOR,2);if(!this.arg[0].getGeometry().getEnvelopeInternal().intersects(this.arg[1].getGeometry().getEnvelopeInternal())){this.computeDisjointIM(im);return im}this.arg[0].computeSelfNodes(this.li,false);this.arg[1].computeSelfNodes(this.li,false);var intersector=this.arg[0].computeEdgeIntersections(this.arg[1],this.li,false);this.computeIntersectionNodes(0);this.computeIntersectionNodes(1);this.copyNodesAndLabels(0);this.copyNodesAndLabels(1);this.labelIsolatedNodes();this.computeProperIntersectionIM(intersector,im);var eeBuilder=new jsts.operation.relate.EdgeEndBuilder;var ee0=eeBuilder.computeEdgeEnds(this.arg[0].getEdgeIterator());this.insertEdgeEnds(ee0);var ee1=eeBuilder.computeEdgeEnds(this.arg[1].getEdgeIterator());this.insertEdgeEnds(ee1);this.labelNodeEdges();this.labelIsolatedEdges(0,1);this.labelIsolatedEdges(1,0);this.updateIM(im);return im};jsts.operation.relate.RelateComputer.prototype.insertEdgeEnds=function(ee){for(var i=ee.iterator();i.hasNext();){var e=i.next();this.nodes.add(e)}};jsts.operation.relate.RelateComputer.prototype.computeProperIntersectionIM=function(intersector,im){var dimA=this.arg[0].getGeometry().getDimension();var dimB=this.arg[1].getGeometry().getDimension();var hasProper=intersector.hasProperIntersection();var hasProperInterior=intersector.hasProperInteriorIntersection();if(dimA===2&&dimB===2){if(hasProper)im.setAtLeast("212101212")}else if(dimA===2&&dimB===1){if(hasProper)im.setAtLeast("FFF0FFFF2");if(hasProperInterior)im.setAtLeast("1FFFFF1FF")}else if(dimA===1&&dimB===2){if(hasProper)im.setAtLeast("F0FFFFFF2");if(hasProperInterior)im.setAtLeast("1F1FFFFFF")}else if(dimA===1&&dimB===1){if(hasProperInterior)im.setAtLeast("0FFFFFFFF")}};jsts.operation.relate.RelateComputer.prototype.copyNodesAndLabels=function(argIndex){for(var i=this.arg[argIndex].getNodeIterator();i.hasNext();){var graphNode=i.next();var newNode=this.nodes.addNode(graphNode.getCoordinate());newNode.setLabel(argIndex,graphNode.getLabel().getLocation(argIndex))}};jsts.operation.relate.RelateComputer.prototype.computeIntersectionNodes=function(argIndex){for(var i=this.arg[argIndex].getEdgeIterator();i.hasNext();){var e=i.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();var n=this.nodes.addNode(ei.coord);if(eLoc===Location.BOUNDARY)n.setLabelBoundary(argIndex);else{if(n.getLabel().isNull(argIndex))n.setLabel(argIndex,Location.INTERIOR)}}}};jsts.operation.relate.RelateComputer.prototype.labelIntersectionNodes=function(argIndex){for(var i=this.arg[argIndex].getEdgeIterator();i.hasNext();){var e=i.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();var n=this.nodes.find(ei.coord);if(n.getLabel().isNull(argIndex)){if(eLoc===Location.BOUNDARY)n.setLabelBoundary(argIndex);else n.setLabel(argIndex,Location.INTERIOR)}}}};jsts.operation.relate.RelateComputer.prototype.computeDisjointIM=function(im){var ga=this.arg[0].getGeometry();if(!ga.isEmpty()){im.set(Location.INTERIOR,Location.EXTERIOR,ga.getDimension());im.set(Location.BOUNDARY,Location.EXTERIOR,ga.getBoundaryDimension())}var gb=this.arg[1].getGeometry();if(!gb.isEmpty()){im.set(Location.EXTERIOR,Location.INTERIOR,gb.getDimension());im.set(Location.EXTERIOR,Location.BOUNDARY,gb.getBoundaryDimension())}};jsts.operation.relate.RelateComputer.prototype.labelNodeEdges=function(){for(var ni=this.nodes.iterator();ni.hasNext();){var node=ni.next();node.getEdges().computeLabelling(this.arg)}};jsts.operation.relate.RelateComputer.prototype.updateIM=function(im){for(var ei=this.isolatedEdges.iterator();ei.hasNext();){var e=ei.next();e.updateIM(im)}for(var ni=this.nodes.iterator();ni.hasNext();){var node=ni.next();node.updateIM(im);node.updateIMFromEdges(im)}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedEdges=function(thisIndex,targetIndex){for(var ei=this.arg[thisIndex].getEdgeIterator();ei.hasNext();){var e=ei.next();if(e.isIsolated()){this.labelIsolatedEdge(e,targetIndex,this.arg[targetIndex].getGeometry());this.isolatedEdges.add(e)}}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedEdge=function(e,targetIndex,target){if(target.getDimension()>0){var loc=this.ptLocator.locate(e.getCoordinate(),target);e.getLabel().setAllLocations(targetIndex,loc)}else{e.getLabel().setAllLocations(targetIndex,Location.EXTERIOR)}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedNodes=function(){for(var ni=this.nodes.iterator();ni.hasNext();){var n=ni.next();var label=n.getLabel();Assert.isTrue(label.getGeometryCount()>0,"node with empty label found");if(n.isIsolated()){if(label.isNull(0))this.labelIsolatedNode(n,0);else this.labelIsolatedNode(n,1)}}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedNode=function(n,targetIndex){var loc=this.ptLocator.locate(n.getCoordinate(),this.arg[targetIndex].getGeometry());n.getLabel().setAllLocations(targetIndex,loc)}})();(function(){var Assert=jsts.util.Assert;jsts.geomgraph.GraphComponent=function(label){this.label=label};jsts.geomgraph.GraphComponent.prototype.label=null;jsts.geomgraph.GraphComponent.prototype._isInResult=false;jsts.geomgraph.GraphComponent.prototype._isCovered=false;jsts.geomgraph.GraphComponent.prototype._isCoveredSet=false;jsts.geomgraph.GraphComponent.prototype._isVisited=false;jsts.geomgraph.GraphComponent.prototype.getLabel=function(){return this.label};jsts.geomgraph.GraphComponent.prototype.setLabel=function(label){if(arguments.length===2){this.setLabel2.apply(this,arguments);return}this.label=label};jsts.geomgraph.GraphComponent.prototype.setInResult=function(isInResult){this._isInResult=isInResult};jsts.geomgraph.GraphComponent.prototype.isInResult=function(){return this._isInResult};jsts.geomgraph.GraphComponent.prototype.setCovered=function(isCovered){this._isCovered=isCovered;this._isCoveredSet=true};jsts.geomgraph.GraphComponent.prototype.isCovered=function(){return this._isCovered};jsts.geomgraph.GraphComponent.prototype.isCoveredSet=function(){return this._isCoveredSet};jsts.geomgraph.GraphComponent.prototype.isVisited=function(){return this._isVisited};jsts.geomgraph.GraphComponent.prototype.setVisited=function(isVisited){this._isVisited=isVisited};jsts.geomgraph.GraphComponent.prototype.getCoordinate=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.GraphComponent.prototype.computeIM=function(im){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.GraphComponent.prototype.isIsolated=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.GraphComponent.prototype.updateIM=function(im){Assert.isTrue(this.label.getGeometryCount()>=2,"found partial label");this.computeIM(im)}})();jsts.geomgraph.Node=function(coord,edges){this.coord=coord;this.edges=edges;this.label=new jsts.geomgraph.Label(0,jsts.geom.Location.NONE)};jsts.geomgraph.Node.prototype=new jsts.geomgraph.GraphComponent;jsts.geomgraph.Node.prototype.coord=null;jsts.geomgraph.Node.prototype.edges=null;jsts.geomgraph.Node.prototype.isIsolated=function(){return this.label.getGeometryCount()==1};jsts.geomgraph.Node.prototype.setLabel2=function(argIndex,onLocation){if(this.label===null){this.label=new jsts.geomgraph.Label(argIndex,onLocation)}else this.label.setLocation(argIndex,onLocation)};jsts.geomgraph.Node.prototype.setLabelBoundary=function(argIndex){var loc=jsts.geom.Location.NONE;if(this.label!==null)loc=this.label.getLocation(argIndex);var newLoc;switch(loc){case jsts.geom.Location.BOUNDARY:newLoc=jsts.geom.Location.INTERIOR;break;case jsts.geom.Location.INTERIOR:newLoc=jsts.geom.Location.BOUNDARY;break;default:newLoc=jsts.geom.Location.BOUNDARY;break}this.label.setLocation(argIndex,newLoc)};jsts.geomgraph.Node.prototype.add=function(e){this.edges.insert(e);e.setNode(this)};jsts.geomgraph.Node.prototype.getCoordinate=function(){return this.coord};jsts.geomgraph.Node.prototype.getEdges=function(){return this.edges};jsts.geomgraph.Node.prototype.isIncidentEdgeInResult=function(){for(var it=this.getEdges().getEdges().iterator();it.hasNext();){var de=it.next();if(de.getEdge().isInResult())return true}return false};jsts.geom.Dimension=function(){};jsts.geom.Dimension.P=0;jsts.geom.Dimension.L=1;jsts.geom.Dimension.A=2;jsts.geom.Dimension.FALSE=-1;jsts.geom.Dimension.TRUE=-2;jsts.geom.Dimension.DONTCARE=-3;jsts.geom.Dimension.toDimensionSymbol=function(dimensionValue){switch(dimensionValue){case jsts.geom.Dimension.FALSE:return"F";case jsts.geom.Dimension.TRUE:return"T";case jsts.geom.Dimension.DONTCARE:return"*";case jsts.geom.Dimension.P:return"0";case jsts.geom.Dimension.L:return"1";case jsts.geom.Dimension.A:return"2"}throw new jsts.IllegalArgumentError("Unknown dimension value: "+dimensionValue)};jsts.geom.Dimension.toDimensionValue=function(dimensionSymbol){switch(dimensionSymbol.toUpperCase()){case"F":return jsts.geom.Dimension.FALSE;case"T":return jsts.geom.Dimension.TRUE;case"*":return jsts.geom.Dimension.DONTCARE;case"0":return jsts.geom.Dimension.P;case"1":return jsts.geom.Dimension.L;case"2":return jsts.geom.Dimension.A}throw new jsts.error.IllegalArgumentError("Unknown dimension symbol: "+dimensionSymbol)};(function(){var Dimension=jsts.geom.Dimension;jsts.geom.LineString=function(points,factory){this.factory=factory;this.points=points||[]};jsts.geom.LineString.prototype=new jsts.geom.Geometry;jsts.geom.LineString.constructor=jsts.geom.LineString;jsts.geom.LineString.prototype.points=null;jsts.geom.LineString.prototype.getCoordinates=function(){return this.points};jsts.geom.LineString.prototype.getCoordinateSequence=function(){return this.points};jsts.geom.LineString.prototype.getCoordinateN=function(n){return this.points[n]};jsts.geom.LineString.prototype.getCoordinate=function(){if(this.isEmpty()){return null}return this.getCoordinateN(0)};jsts.geom.LineString.prototype.getDimension=function(){return 1};jsts.geom.LineString.prototype.getBoundaryDimension=function(){if(this.isClosed()){return Dimension.FALSE}return 0};jsts.geom.LineString.prototype.isEmpty=function(){return this.points.length===0};jsts.geom.LineString.prototype.getNumPoints=function(){return this.points.length};jsts.geom.LineString.prototype.getPointN=function(n){return this.getFactory().createPoint(this.points[n])};jsts.geom.LineString.prototype.getStartPoint=function(){if(this.isEmpty()){return null}return this.getPointN(0)};jsts.geom.LineString.prototype.getEndPoint=function(){if(this.isEmpty()){return null}return this.getPointN(this.getNumPoints()-1)};jsts.geom.LineString.prototype.isClosed=function(){if(this.isEmpty()){return false}return this.getCoordinateN(0).equals2D(this.getCoordinateN(this.points.length-1))};jsts.geom.LineString.prototype.isRing=function(){return this.isClosed()&&this.isSimple()};jsts.geom.LineString.prototype.getGeometryType=function(){return"LineString"};jsts.geom.LineString.prototype.getLength=function(){return jsts.algorithm.CGAlgorithms.computeLength(this.points)};jsts.geom.LineString.prototype.getBoundary=function(){return new jsts.operation.BoundaryOp(this).getBoundary()};jsts.geom.LineString.prototype.computeEnvelopeInternal=function(){if(this.isEmpty()){return new jsts.geom.Envelope}var env=new jsts.geom.Envelope;this.points.forEach(function(component){env.expandToInclude(component)});return env};jsts.geom.LineString.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}if(this.points.length!==other.points.length){return false}if(this.isEmpty()&&other.isEmpty()){return true}return this.points.reduce(function(equal,point,i){return equal&&jsts.geom.Geometry.prototype.equal(point,other.points[i],tolerance)})};jsts.geom.LineString.prototype.isEquivalentClass=function(other){return other instanceof jsts.geom.LineString};jsts.geom.LineString.prototype.compareToSameClass=function(o){var line=o;var i=0,il=this.points.length;var j=0,jl=line.points.length;while(i<il&&j<jl){var comparison=this.points[i].compareTo(line.points[j]);if(comparison!==0){return comparison}i++;j++}if(i<il){return 1}if(j<jl){return-1}return 0};jsts.geom.LineString.prototype.apply=function(filter){if(filter instanceof jsts.geom.GeometryFilter||filter instanceof jsts.geom.GeometryComponentFilter){filter.filter(this)}else if(filter instanceof jsts.geom.CoordinateFilter){for(var i=0,len=this.points.length;i<len;i++){filter.filter(this.points[i])}}else if(filter instanceof jsts.geom.CoordinateSequenceFilter){this.apply2.apply(this,arguments)}};jsts.geom.LineString.prototype.apply2=function(filter){if(this.points.length===0)return;for(var i=0;i<this.points.length;i++){filter.filter(this.points,i);if(filter.isDone())break}if(filter.isGeometryChanged()){}};jsts.geom.LineString.prototype.clone=function(){var points=[];for(var i=0,len=this.points.length;i<len;i++){points.push(this.points[i].clone())}return this.factory.createLineString(points)};jsts.geom.LineString.prototype.normalize=function(){var i,il,j,ci,cj,len;len=this.points.length;il=parseInt(len/2);for(i=0;i<il;i++){j=len-1-i;ci=this.points[i];cj=this.points[j];if(!ci.equals(cj)){if(ci.compareTo(cj)>0){this.points.reverse()}return}}};jsts.geom.LineString.prototype.CLASS_NAME="jsts.geom.LineString"})();(function(){jsts.geom.Polygon=function(shell,holes,factory){this.shell=shell||factory.createLinearRing(null);this.holes=holes||[];this.factory=factory};jsts.geom.Polygon.prototype=new jsts.geom.Geometry;jsts.geom.Polygon.constructor=jsts.geom.Polygon;jsts.geom.Polygon.prototype.getCoordinate=function(){return this.shell.getCoordinate()};jsts.geom.Polygon.prototype.getCoordinates=function(){if(this.isEmpty()){return[]}var coordinates=[];var k=-1;var shellCoordinates=this.shell.getCoordinates();for(var x=0;x<shellCoordinates.length;x++){k++;coordinates[k]=shellCoordinates[x]}for(var i=0;i<this.holes.length;i++){var childCoordinates=this.holes[i].getCoordinates();for(var j=0;j<childCoordinates.length;j++){k++;coordinates[k]=childCoordinates[j]}}return coordinates};jsts.geom.Polygon.prototype.isEmpty=function(){return this.shell.isEmpty()};jsts.geom.Polygon.prototype.getExteriorRing=function(){return this.shell};jsts.geom.Polygon.prototype.getInteriorRingN=function(n){return this.holes[n]};jsts.geom.Polygon.prototype.getNumInteriorRing=function(){return this.holes.length};jsts.geom.Polygon.prototype.getArea=function(){var area=0;area+=Math.abs(jsts.algorithm.CGAlgorithms.signedArea(this.shell.getCoordinateSequence()));for(var i=0;i<this.holes.length;i++){area-=Math.abs(jsts.algorithm.CGAlgorithms.signedArea(this.holes[i].getCoordinateSequence()))}return area};jsts.geom.Polygon.prototype.getLength=function(){var len=0;len+=this.shell.getLength();for(var i=0;i<this.holes.length;i++){len+=this.holes[i].getLength()}return len};jsts.geom.Polygon.prototype.getBoundary=function(){if(this.isEmpty()){return this.getFactory().createMultiLineString(null)}var rings=[];rings[0]=this.shell.clone();for(var i=0,len=this.holes.length;i<len;i++){rings[i+1]=this.holes[i].clone()}if(rings.length<=1)return rings[0];return this.getFactory().createMultiLineString(rings)};jsts.geom.Polygon.prototype.computeEnvelopeInternal=function(){return this.shell.getEnvelopeInternal()};jsts.geom.Polygon.prototype.getDimension=function(){return 2};jsts.geom.Polygon.prototype.getBoundaryDimension=function(){return 1};jsts.geom.Polygon.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}if(this.isEmpty()&&other.isEmpty()){return true}if(this.isEmpty()!==other.isEmpty()){return false}if(!this.shell.equalsExact(other.shell,tolerance)){return false}if(this.holes.length!==other.holes.length){return false}if(this.holes.length!==other.holes.length){return false}for(var i=0;i<this.holes.length;i++){if(!this.holes[i].equalsExact(other.holes[i],tolerance)){return false}}return true};jsts.geom.Polygon.prototype.compareToSameClass=function(o){return this.shell.compareToSameClass(o.shell)};jsts.geom.Polygon.prototype.apply=function(filter){if(filter instanceof jsts.geom.GeometryComponentFilter){filter.filter(this);this.shell.apply(filter);for(var i=0,len=this.holes.length;i<len;i++){this.holes[i].apply(filter)}}else if(filter instanceof jsts.geom.GeometryFilter){filter.filter(this)}else if(filter instanceof jsts.geom.CoordinateFilter){this.shell.apply(filter);for(var i=0,len=this.holes.length;i<len;i++){this.holes[i].apply(filter)}}else if(filter instanceof jsts.geom.CoordinateSequenceFilter){this.apply2.apply(this,arguments)}};jsts.geom.Polygon.prototype.apply2=function(filter){this.shell.apply(filter);if(!filter.isDone()){for(var i=0;i<this.holes.length;i++){this.holes[i].apply(filter);if(filter.isDone())break}}if(filter.isGeometryChanged()){}};jsts.geom.Polygon.prototype.clone=function(){var holes=[];for(var i=0,len=this.holes.length;i<len;i++){holes.push(this.holes[i].clone())}return this.factory.createPolygon(this.shell.clone(),holes)};jsts.geom.Polygon.prototype.normalize=function(){this.normalize2(this.shell,true);for(var i=0,len=this.holes.length;i<len;i++){this.normalize2(this.holes[i],false)}this.holes.sort()};jsts.geom.Polygon.prototype.normalize2=function(ring,clockwise){if(ring.isEmpty()){return}var uniqueCoordinates=ring.points.slice(0,ring.points.length-1);var minCoordinate=jsts.geom.CoordinateArrays.minCoordinate(ring.points);jsts.geom.CoordinateArrays.scroll(uniqueCoordinates,minCoordinate);ring.points=uniqueCoordinates.concat();ring.points[uniqueCoordinates.length]=uniqueCoordinates[0];if(jsts.algorithm.CGAlgorithms.isCCW(ring.points)===clockwise){ring.points.reverse()}};jsts.geom.Polygon.prototype.getGeometryType=function(){return"Polygon"};jsts.geom.Polygon.prototype.CLASS_NAME="jsts.geom.Polygon"})();(function(){var Geometry=jsts.geom.Geometry;var TreeSet=javascript.util.TreeSet;var Arrays=javascript.util.Arrays;jsts.geom.GeometryCollection=function(geometries,factory){this.geometries=geometries||[];this.factory=factory};jsts.geom.GeometryCollection.prototype=new Geometry;jsts.geom.GeometryCollection.constructor=jsts.geom.GeometryCollection;jsts.geom.GeometryCollection.prototype.isEmpty=function(){for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);if(!geometry.isEmpty()){return false}}return true};jsts.geom.Geometry.prototype.getArea=function(){var area=0;for(var i=0,len=this.geometries.length;i<len;i++){area+=this.getGeometryN(i).getArea()}return area};jsts.geom.Geometry.prototype.getLength=function(){var length=0;for(var i=0,len=this.geometries.length;i<len;i++){length+=this.getGeometryN(i).getLength()}return length};jsts.geom.GeometryCollection.prototype.getCoordinate=function(){if(this.isEmpty())return null;return this.getGeometryN(0).getCoordinate()};jsts.geom.GeometryCollection.prototype.getCoordinates=function(){var coordinates=[];var k=-1;for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);var childCoordinates=geometry.getCoordinates();for(var j=0;j<childCoordinates.length;j++){k++;coordinates[k]=childCoordinates[j]}}return coordinates};jsts.geom.GeometryCollection.prototype.getNumGeometries=function(){return this.geometries.length};jsts.geom.GeometryCollection.prototype.getGeometryN=function(n){var geometry=this.geometries[n];if(geometry instanceof jsts.geom.Coordinate){geometry=new jsts.geom.Point(geometry)}return geometry};jsts.geom.GeometryCollection.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}if(this.geometries.length!==other.geometries.length){return false}for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);if(!geometry.equalsExact(other.getGeometryN(i),tolerance)){return false}}return true};jsts.geom.GeometryCollection.prototype.clone=function(){var geometries=[];for(var i=0,len=this.geometries.length;i<len;i++){geometries.push(this.geometries[i].clone())}return this.factory.createGeometryCollection(geometries)};jsts.geom.GeometryCollection.prototype.normalize=function(){for(var i=0,len=this.geometries.length;i<len;i++){this.getGeometryN(i).normalize()}this.geometries.sort()};jsts.geom.GeometryCollection.prototype.compareToSameClass=function(o){var theseElements=new TreeSet(Arrays.asList(this.geometries));var otherElements=new TreeSet(Arrays.asList(o.geometries));return this.compare(theseElements,otherElements)};jsts.geom.GeometryCollection.prototype.apply=function(filter){if(filter instanceof jsts.geom.GeometryFilter||filter instanceof jsts.geom.GeometryComponentFilter){filter.filter(this);for(var i=0,len=this.geometries.length;i<len;i++){this.getGeometryN(i).apply(filter)}}else if(filter instanceof jsts.geom.CoordinateFilter){for(var i=0,len=this.geometries.length;i<len;i++){this.getGeometryN(i).apply(filter)}}else if(filter instanceof jsts.geom.CoordinateSequenceFilter){this.apply2.apply(this,arguments)}};jsts.geom.GeometryCollection.prototype.apply2=function(filter){if(this.geometries.length==0)return;for(var i=0;i<this.geometries.length;i++){this.geometries[i].apply(filter);if(filter.isDone()){break}}if(filter.isGeometryChanged()){}};jsts.geom.GeometryCollection.prototype.getDimension=function(){var dimension=jsts.geom.Dimension.FALSE;for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);dimension=Math.max(dimension,geometry.getDimension())}return dimension};jsts.geom.GeometryCollection.prototype.computeEnvelopeInternal=function(){var envelope=new jsts.geom.Envelope;for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);envelope.expandToInclude(geometry.getEnvelopeInternal())}return envelope};jsts.geom.GeometryCollection.prototype.CLASS_NAME="jsts.geom.GeometryCollection"})();jsts.algorithm.Centroid=function(geometry){this.areaBasePt=null;this.triangleCent3=new jsts.geom.Coordinate;this.areasum2=0;this.cg3=new jsts.geom.Coordinate;this.lineCentSum=new jsts.geom.Coordinate;this.totalLength=0;this.ptCount=0;this.ptCentSum=new jsts.geom.Coordinate;this.add(geometry)};jsts.algorithm.Centroid.getCentroid=function(geometry){var cent=new jsts.algorithm.Centroid(geometry);return cent.getCentroid()};jsts.algorithm.Centroid.centroid3=function(p1,p2,p3,c){c.x=p1.x+p2.x+p3.x;c.y=p1.y+p2.y+p3.y};jsts.algorithm.Centroid.area2=function(p1,p2,p3){return(p2.x-p1.x)*(p3.y-p1.y)-(p3.x-p1.x)*(p2.y-p1.y)};jsts.algorithm.Centroid.prototype.add=function(geom){if(geom.isEmpty()){return}if(geom instanceof jsts.geom.Point){this.addPoint(geom.getCoordinate())}else if(geom instanceof jsts.geom.LineString){this.addLineSegments(geom.getCoordinates())}else if(geom instanceof jsts.geom.Polygon){this.addPolygon(geom)}else if(geom instanceof jsts.geom.GeometryCollection){for(var i=0;i<geom.getNumGeometries();i++){this.add(geom.getGeometryN(i))}}};jsts.algorithm.Centroid.prototype.getCentroid=function(){var cent=new jsts.geom.Coordinate;if(Math.abs(this.areasum2)>0){cent.x=this.cg3.x/3/this.areasum2;cent.y=this.cg3.y/3/this.areasum2}else if(this.totalLength>0){cent.x=this.lineCentSum.x/this.totalLength;cent.y=this.lineCentSum.y/this.totalLength}else if(this.ptCount>0){cent.x=this.ptCentSum.x/this.ptCount;
cent.y=this.ptCentSum.y/this.ptCount}else{return null}return cent};jsts.algorithm.Centroid.prototype.setBasePoint=function(basePt){if(this.areaBasePt===null){this.areaBasePt=basePt}};jsts.algorithm.Centroid.prototype.addPolygon=function(poly){this.addShell(poly.getExteriorRing().getCoordinates());for(var i=0;i<poly.getNumInteriorRing();i++){this.addHole(poly.getInteriorRingN(i).getCoordinates())}};jsts.algorithm.Centroid.prototype.addShell=function(pts){if(pts.length>0){this.setBasePoint(pts[0])}var isPositiveArea=!jsts.algorithm.CGAlgorithms.isCCW(pts);for(var i=0;i<pts.length-1;i++){this.addTriangle(this.areaBasePt,pts[i],pts[i+1],isPositiveArea)}this.addLineSegments(pts)};jsts.algorithm.Centroid.prototype.addHole=function(pts){var isPositiveArea=jsts.algorithm.CGAlgorithms.isCCW(pts);for(var i=0;i<pts.length-1;i++){this.addTriangle(this.areaBasePt,pts[i],pts[i+1],isPositiveArea)}this.addLineSegments(pts)};jsts.algorithm.Centroid.prototype.addTriangle=function(p0,p1,p2,isPositiveArea){var sign=isPositiveArea?1:-1;jsts.algorithm.Centroid.centroid3(p0,p1,p2,this.triangleCent3);var area2=jsts.algorithm.Centroid.area2(p0,p1,p2);this.cg3.x+=sign*area2*this.triangleCent3.x;this.cg3.y+=sign*area2*this.triangleCent3.y;this.areasum2+=sign*area2};jsts.algorithm.Centroid.prototype.addLineSegments=function(pts){var lineLen=0;for(var i=0;i<pts.length-1;i++){var segmentLen=pts[i].distance(pts[i+1]);if(segmentLen===0){continue}lineLen+=segmentLen;var midx=(pts[i].x+pts[i+1].x)/2;this.lineCentSum.x+=segmentLen*midx;var midy=(pts[i].y+pts[i+1].y)/2;this.lineCentSum.y+=segmentLen*midy}this.totalLength+=lineLen;if(lineLen===0&&pts.length>0){this.addPoint(pts[0])}};jsts.algorithm.Centroid.prototype.addPoint=function(pt){this.ptCount+=1;this.ptCentSum.x+=pt.x;this.ptCentSum.y+=pt.y};(function(){var EdgeRing=function(factory){this.deList=new javascript.util.ArrayList;this.factory=factory};EdgeRing.findEdgeRingContaining=function(testEr,shellList){var testRing=testEr.getRing();var testEnv=testRing.getEnvelopeInternal();var testPt=testRing.getCoordinateN(0);var minShell=null;var minEnv=null;for(var it=shellList.iterator();it.hasNext();){var tryShell=it.next();var tryRing=tryShell.getRing();var tryEnv=tryRing.getEnvelopeInternal();if(minShell!=null)minEnv=minShell.getRing().getEnvelopeInternal();var isContained=false;if(tryEnv.equals(testEnv))continue;testPt=jsts.geom.CoordinateArrays.ptNotInList(testRing.getCoordinates(),tryRing.getCoordinates());if(tryEnv.contains(testEnv)&&jsts.algorithm.CGAlgorithms.isPointInRing(testPt,tryRing.getCoordinates()))isContained=true;if(isContained){if(minShell==null||minEnv.contains(tryEnv)){minShell=tryShell}}}return minShell};EdgeRing.ptNotInList=function(testPts,pts){for(var i=0;i<testPts.length;i++){var testPt=testPts[i];if(!isInList(testPt,pts))return testPt}return null};EdgeRing.isInList=function(pt,pts){for(var i=0;i<pts.length;i++){if(pt.equals(pts[i]))return true}return false};EdgeRing.prototype.factory=null;EdgeRing.prototype.deList=null;EdgeRing.prototype.ring=null;EdgeRing.prototype.ringPts=null;EdgeRing.prototype.holes=null;EdgeRing.prototype.add=function(de){this.deList.add(de)};EdgeRing.prototype.isHole=function(){var ring=this.getRing();return jsts.algorithm.CGAlgorithms.isCCW(ring.getCoordinates())};EdgeRing.prototype.addHole=function(hole){if(this.holes==null)this.holes=new javascript.util.ArrayList;this.holes.add(hole)};EdgeRing.prototype.getPolygon=function(){var holeLR=null;if(this.holes!=null){holeLR=[];for(var i=0;i<this.holes.size();i++){holeLR[i]=this.holes.get(i)}}var poly=this.factory.createPolygon(this.ring,holeLR);return poly};EdgeRing.prototype.isValid=function(){this.getCoordinates();if(this.ringPts.length<=3)return false;this.getRing();return this.ring.isValid()};EdgeRing.prototype.getCoordinates=function(){if(this.ringPts==null){var coordList=new jsts.geom.CoordinateList;for(var i=this.deList.iterator();i.hasNext();){var de=i.next();var edge=de.getEdge();EdgeRing.addEdge(edge.getLine().getCoordinates(),de.getEdgeDirection(),coordList)}this.ringPts=coordList.toCoordinateArray()}return this.ringPts};EdgeRing.prototype.getLineString=function(){this.getCoordinates();return this.factory.createLineString(this.ringPts)};EdgeRing.prototype.getRing=function(){if(this.ring!=null)return this.ring;this.getCoordinates();if(this.ringPts.length<3)console.log(this.ringPts);try{this.ring=this.factory.createLinearRing(this.ringPts)}catch(ex){console.log(this.ringPts)}return this.ring};EdgeRing.addEdge=function(coords,isForward,coordList){if(isForward){for(var i=0;i<coords.length;i++){coordList.add(coords[i],false)}}else{for(var i=coords.length-1;i>=0;i--){coordList.add(coords[i],false)}}};jsts.operation.polygonize.EdgeRing=EdgeRing})();(function(){var GraphComponent=function(){};GraphComponent.setVisited=function(i,visited){while(i.hasNext()){var comp=i.next();comp.setVisited(visited)}};GraphComponent.setMarked=function(i,marked){while(i.hasNext()){var comp=i.next();comp.setMarked(marked)}};GraphComponent.getComponentWithVisitedState=function(i,visitedState){while(i.hasNext()){var comp=i.next();if(comp.isVisited()==visitedState)return comp}return null};GraphComponent.prototype._isMarked=false;GraphComponent.prototype._isVisited=false;GraphComponent.prototype.data;GraphComponent.prototype.isVisited=function(){return this._isVisited};GraphComponent.prototype.setVisited=function(isVisited){this._isVisited=isVisited};GraphComponent.prototype.isMarked=function(){return this._isMarked};GraphComponent.prototype.setMarked=function(isMarked){this._isMarked=isMarked};GraphComponent.prototype.setContext=function(data){this.data=data};GraphComponent.prototype.getContext=function(){return data};GraphComponent.prototype.setData=function(data){this.data=data};GraphComponent.prototype.getData=function(){return data};GraphComponent.prototype.isRemoved=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.planargraph.GraphComponent=GraphComponent})();(function(){var GraphComponent=jsts.planargraph.GraphComponent;var Edge=function(de0,de1){if(de0===undefined){return}this.setDirectedEdges(de0,de1)};Edge.prototype=new GraphComponent;Edge.prototype.dirEdge=null;Edge.prototype.setDirectedEdges=function(de0,de1){this.dirEdge=[de0,de1];de0.setEdge(this);de1.setEdge(this);de0.setSym(de1);de1.setSym(de0);de0.getFromNode().addOutEdge(de0);de1.getFromNode().addOutEdge(de1)};Edge.prototype.getDirEdge=function(i){if(i instanceof jsts.planargraph.Node){this.getDirEdge2(i)}return this.dirEdge[i]};Edge.prototype.getDirEdge2=function(fromNode){if(this.dirEdge[0].getFromNode()==fromNode)return this.dirEdge[0];if(this.dirEdge[1].getFromNode()==fromNode)return this.dirEdge[1];return null};Edge.prototype.getOppositeNode=function(node){if(this.dirEdge[0].getFromNode()==node)return this.dirEdge[0].getToNode();if(this.dirEdge[1].getFromNode()==node)return this.dirEdge[1].getToNode();return null};Edge.prototype.remove=function(){this.dirEdge=null};Edge.prototype.isRemoved=function(){return dirEdge==null};jsts.planargraph.Edge=Edge})();jsts.operation.polygonize.PolygonizeEdge=function(line){this.line=line};jsts.operation.polygonize.PolygonizeEdge.prototype=new jsts.planargraph.Edge;jsts.operation.polygonize.PolygonizeEdge.prototype.line=null;jsts.operation.polygonize.PolygonizeEdge.prototype.getLine=function(){return this.line};(function(){var ArrayList=javascript.util.ArrayList;var GraphComponent=jsts.planargraph.GraphComponent;var DirectedEdge=function(from,to,directionPt,edgeDirection){if(from===undefined){return}this.from=from;this.to=to;this.edgeDirection=edgeDirection;this.p0=from.getCoordinate();this.p1=directionPt;var dx=this.p1.x-this.p0.x;var dy=this.p1.y-this.p0.y;this.quadrant=jsts.geomgraph.Quadrant.quadrant(dx,dy);this.angle=Math.atan2(dy,dx)};DirectedEdge.prototype=new GraphComponent;DirectedEdge.toEdges=function(dirEdges){var edges=new ArrayList;for(var i=dirEdges.iterator();i.hasNext();){edges.add(i.next().parentEdge)}return edges};DirectedEdge.prototype.parentEdge=null;DirectedEdge.prototype.from=null;DirectedEdge.prototype.to=null;DirectedEdge.prototype.p0=null;DirectedEdge.prototype.p1=null;DirectedEdge.prototype.sym=null;DirectedEdge.prototype.edgeDirection=null;DirectedEdge.prototype.quadrant=null;DirectedEdge.prototype.angle=null;DirectedEdge.prototype.getEdge=function(){return this.parentEdge};DirectedEdge.prototype.setEdge=function(parentEdge){this.parentEdge=parentEdge};DirectedEdge.prototype.getQuadrant=function(){return this.quadrant};DirectedEdge.prototype.getDirectionPt=function(){return this.p1};DirectedEdge.prototype.getEdgeDirection=function(){return this.edgeDirection};DirectedEdge.prototype.getFromNode=function(){return this.from};DirectedEdge.prototype.getToNode=function(){return this.to};DirectedEdge.prototype.getCoordinate=function(){return this.from.getCoordinate()};DirectedEdge.prototype.getAngle=function(){return this.angle};DirectedEdge.prototype.getSym=function(){return this.sym};DirectedEdge.prototype.setSym=function(sym){this.sym=sym};DirectedEdge.prototype.remove=function(){this.sym=null;this.parentEdge=null};DirectedEdge.prototype.isRemoved=function(){return this.parentEdge==null};DirectedEdge.prototype.compareTo=function(obj){var de=obj;return this.compareDirection(de)};DirectedEdge.prototype.compareDirection=function(e){if(this.quadrant>e.quadrant)return 1;if(this.quadrant<e.quadrant)return-1;return jsts.algorithm.CGAlgorithms.computeOrientation(e.p0,e.p1,this.p1)};jsts.planargraph.DirectedEdge=DirectedEdge})();(function(){var DirectedEdge=jsts.planargraph.DirectedEdge;var PolygonizeDirectedEdge=function(from,to,directionPt,edgeDirection){DirectedEdge.apply(this,arguments)};PolygonizeDirectedEdge.prototype=new DirectedEdge;PolygonizeDirectedEdge.prototype.edgeRing=null;PolygonizeDirectedEdge.prototype.next=null;PolygonizeDirectedEdge.prototype.label=-1;PolygonizeDirectedEdge.prototype.getLabel=function(){return this.label};PolygonizeDirectedEdge.prototype.setLabel=function(label){this.label=label};PolygonizeDirectedEdge.prototype.getNext=function(){return this.next};PolygonizeDirectedEdge.prototype.setNext=function(next){this.next=next};PolygonizeDirectedEdge.prototype.isInRing=function(){return this.edgeRing!=null};PolygonizeDirectedEdge.prototype.setRing=function(edgeRing){this.edgeRing=edgeRing};jsts.operation.polygonize.PolygonizeDirectedEdge=PolygonizeDirectedEdge})();(function(){var ArrayList=javascript.util.ArrayList;var DirectedEdgeStar=function(){this.outEdges=new ArrayList};DirectedEdgeStar.prototype.outEdges=null;DirectedEdgeStar.prototype.sorted=false;DirectedEdgeStar.prototype.add=function(de){this.outEdges.add(de);this.sorted=false};DirectedEdgeStar.prototype.remove=function(de){this.outEdges.remove(de)};DirectedEdgeStar.prototype.iterator=function(){this.sortEdges();return this.outEdges.iterator()};DirectedEdgeStar.prototype.getDegree=function(){return this.outEdges.size()};DirectedEdgeStar.prototype.getCoordinate=function(){var it=iterator();if(!it.hasNext())return null;var e=it.next();return e.getCoordinate()};DirectedEdgeStar.prototype.getEdges=function(){this.sortEdges();return this.outEdges};DirectedEdgeStar.prototype.sortEdges=function(){if(!this.sorted){var array=this.outEdges.toArray();array.sort(function(a,b){return a.compareTo(b)});this.outEdges=javascript.util.Arrays.asList(array);this.sorted=true}};DirectedEdgeStar.prototype.getIndex=function(edge){if(edge instanceof jsts.planargraph.DirectedEdge){return this.getIndex2(edge)}else if(typeof edge==="number"){return this.getIndex3(edge)}this.sortEdges();for(var i=0;i<this.outEdges.size();i++){var de=this.outEdges.get(i);if(de.getEdge()==edge)return i}return-1};DirectedEdgeStar.prototype.getIndex2=function(dirEdge){this.sortEdges();for(var i=0;i<this.outEdges.size();i++){var de=this.outEdges.get(i);if(de==dirEdge)return i}return-1};DirectedEdgeStar.prototype.getIndex3=function(i){var modi=toInt(i%this.outEdges.size());if(modi<0)modi+=this.outEdges.size();return modi};DirectedEdgeStar.prototype.getNextEdge=function(dirEdge){var i=this.getIndex(dirEdge);return this.outEdges.get(getIndex(i+1))};DirectedEdgeStar.prototype.getNextCWEdge=function(dirEdge){var i=this.getIndex(dirEdge);return this.outEdges.get(getIndex(i-1))};jsts.planargraph.DirectedEdgeStar=DirectedEdgeStar})();(function(){var GraphComponent=jsts.planargraph.GraphComponent;var DirectedEdgeStar=jsts.planargraph.DirectedEdgeStar;var Node=function(pt,deStar){this.pt=pt;this.deStar=deStar||new DirectedEdgeStar};Node.prototype=new GraphComponent;Node.getEdgesBetween=function(node0,node1){var edges0=DirectedEdge.toEdges(node0.getOutEdges().getEdges());var commonEdges=new javascript.util.HashSet(edges0);var edges1=DirectedEdge.toEdges(node1.getOutEdges().getEdges());commonEdges.retainAll(edges1);return commonEdges};Node.prototype.pt=null;Node.prototype.deStar=null;Node.prototype.getCoordinate=function(){return this.pt};Node.prototype.addOutEdge=function(de){this.deStar.add(de)};Node.prototype.getOutEdges=function(){return this.deStar};Node.prototype.getDegree=function(){return this.deStar.getDegree()};Node.prototype.getIndex=function(edge){return this.deStar.getIndex(edge)};Node.prototype.remove=function(de){if(de===undefined){return this.remove2()}this.deStar.remove(de)};Node.prototype.remove2=function(){this.pt=null};Node.prototype.isRemoved=function(){return this.pt==null};jsts.planargraph.Node=Node})();(function(){var NodeMap=function(){this.nodeMap=new javascript.util.TreeMap};NodeMap.prototype.nodeMap=null;NodeMap.prototype.add=function(n){this.nodeMap.put(n.getCoordinate(),n);return n};NodeMap.prototype.remove=function(pt){return this.nodeMap.remove(pt)};NodeMap.prototype.find=function(coord){return this.nodeMap.get(coord)};NodeMap.prototype.iterator=function(){return this.nodeMap.values().iterator()};NodeMap.prototype.values=function(){return this.nodeMap.values()};jsts.planargraph.NodeMap=NodeMap})();(function(){var ArrayList=javascript.util.ArrayList;var PlanarGraph=function(){this.edges=new javascript.util.HashSet;this.dirEdges=new javascript.util.HashSet;this.nodeMap=new jsts.planargraph.NodeMap};PlanarGraph.prototype.edges=null;PlanarGraph.prototype.dirEdges=null;PlanarGraph.prototype.nodeMap=null;PlanarGraph.prototype.findNode=function(pt){return this.nodeMap.find(pt)};PlanarGraph.prototype.add=function(node){if(node instanceof jsts.planargraph.Edge){return this.add2(node)}else if(node instanceof jsts.planargraph.DirectedEdge){return this.add3(node)}this.nodeMap.add(node)};PlanarGraph.prototype.add2=function(edge){this.edges.add(edge);this.add(edge.getDirEdge(0));this.add(edge.getDirEdge(1))};PlanarGraph.prototype.add3=function(dirEdge){this.dirEdges.add(dirEdge)};PlanarGraph.prototype.nodeIterator=function(){return this.nodeMap.iterator()};PlanarGraph.prototype.contains=function(e){if(e instanceof jsts.planargraph.DirectedEdge){return this.contains2(e)}return this.edges.contains(e)};PlanarGraph.prototype.contains2=function(de){return this.dirEdges.contains(de)};PlanarGraph.prototype.getNodes=function(){return this.nodeMap.values()};PlanarGraph.prototype.dirEdgeIterator=function(){return this.dirEdges.iterator()};PlanarGraph.prototype.edgeIterator=function(){return this.edges.iterator()};PlanarGraph.prototype.getEdges=function(){return this.edges};PlanarGraph.prototype.remove=function(edge){if(edge instanceof jsts.planargraph.DirectedEdge){return this.remove2(edge)}this.remove(edge.getDirEdge(0));this.remove(edge.getDirEdge(1));this.edges.remove(edge);this.edge.remove()};PlanarGraph.prototype.remove2=function(de){if(de instanceof jsts.planargraph.Node){return this.remove3(de)}var sym=de.getSym();if(sym!=null)sym.setSym(null);de.getFromNode().remove(de);de.remove();this.dirEdges.remove(de)};PlanarGraph.prototype.remove3=function(node){var outEdges=node.getOutEdges().getEdges();for(var i=outEdges.iterator();i.hasNext();){var de=i.next();var sym=de.getSym();if(sym!=null)this.remove(sym);this.dirEdges.remove(de);var edge=de.getEdge();if(edge!=null){this.edges.remove(edge)}}this.nodeMap.remove(node.getCoordinate());node.remove()};PlanarGraph.prototype.findNodesOfDegree=function(degree){var nodesFound=new ArrayList;for(var i=this.nodeIterator();i.hasNext();){var node=i.next();if(node.getDegree()==degree)nodesFound.add(node)}return nodesFound};jsts.planargraph.PlanarGraph=PlanarGraph})();(function(){var ArrayList=javascript.util.ArrayList;var Stack=javascript.util.Stack;var HashSet=javascript.util.HashSet;var Assert=jsts.util.Assert;var EdgeRing=jsts.operation.polygonize.EdgeRing;var PolygonizeEdge=jsts.operation.polygonize.PolygonizeEdge;var PolygonizeDirectedEdge=jsts.operation.polygonize.PolygonizeDirectedEdge;var PlanarGraph=jsts.planargraph.PlanarGraph;var Node=jsts.planargraph.Node;var PolygonizeGraph=function(factory){PlanarGraph.apply(this);this.factory=factory};PolygonizeGraph.prototype=new PlanarGraph;PolygonizeGraph.getDegreeNonDeleted=function(node){var edges=node.getOutEdges().getEdges();var degree=0;for(var i=edges.iterator();i.hasNext();){var de=i.next();if(!de.isMarked())degree++}return degree};PolygonizeGraph.getDegree=function(node,label){var edges=node.getOutEdges().getEdges();var degree=0;for(var i=edges.iterator();i.hasNext();){var de=i.next();if(de.getLabel()==label)degree++}return degree};PolygonizeGraph.deleteAllEdges=function(node){var edges=node.getOutEdges().getEdges();for(var i=edges.iterator();i.hasNext();){var de=i.next();de.setMarked(true);var sym=de.getSym();if(sym!=null)sym.setMarked(true)}};PolygonizeGraph.prototype.factory=null;PolygonizeGraph.prototype.addEdge=function(line){if(line.isEmpty()){return}var linePts=jsts.geom.CoordinateArrays.removeRepeatedPoints(line.getCoordinates());if(linePts.length<2){return}var startPt=linePts[0];var endPt=linePts[linePts.length-1];var nStart=this.getNode(startPt);var nEnd=this.getNode(endPt);var de0=new PolygonizeDirectedEdge(nStart,nEnd,linePts[1],true);var de1=new PolygonizeDirectedEdge(nEnd,nStart,linePts[linePts.length-2],false);var edge=new PolygonizeEdge(line);edge.setDirectedEdges(de0,de1);this.add(edge)};PolygonizeGraph.prototype.getNode=function(pt){var node=this.findNode(pt);if(node==null){node=new Node(pt);this.add(node)}return node};PolygonizeGraph.prototype.computeNextCWEdges=function(){for(var iNode=this.nodeIterator();iNode.hasNext();){var node=iNode.next();PolygonizeGraph.computeNextCWEdges(node)}};PolygonizeGraph.prototype.convertMaximalToMinimalEdgeRings=function(ringEdges){for(var i=ringEdges.iterator();i.hasNext();){var de=i.next();var label=de.getLabel();var intNodes=PolygonizeGraph.findIntersectionNodes(de,label);if(intNodes==null)continue;for(var iNode=intNodes.iterator();iNode.hasNext();){var node=iNode.next();PolygonizeGraph.computeNextCCWEdges(node,label)}}};PolygonizeGraph.findIntersectionNodes=function(startDE,label){var de=startDE;var intNodes=null;do{var node=de.getFromNode();if(PolygonizeGraph.getDegree(node,label)>1){if(intNodes==null)intNodes=new ArrayList;intNodes.add(node)}de=de.getNext();Assert.isTrue(de!=null,"found null DE in ring");Assert.isTrue(de==startDE||!de.isInRing(),"found DE already in ring")}while(de!=startDE);return intNodes};PolygonizeGraph.prototype.getEdgeRings=function(){this.computeNextCWEdges();PolygonizeGraph.label(this.dirEdges,-1);var maximalRings=PolygonizeGraph.findLabeledEdgeRings(this.dirEdges);this.convertMaximalToMinimalEdgeRings(maximalRings);var edgeRingList=new ArrayList;for(var i=this.dirEdges.iterator();i.hasNext();){var de=i.next();if(de.isMarked())continue;if(de.isInRing())continue;var er=this.findEdgeRing(de);edgeRingList.add(er)}return edgeRingList};PolygonizeGraph.findLabeledEdgeRings=function(dirEdges){var edgeRingStarts=new ArrayList;var currLabel=1;for(var i=dirEdges.iterator();i.hasNext();){var de=i.next();if(de.isMarked())continue;if(de.getLabel()>=0)continue;edgeRingStarts.add(de);var edges=PolygonizeGraph.findDirEdgesInRing(de);PolygonizeGraph.label(edges,currLabel);currLabel++}return edgeRingStarts};PolygonizeGraph.prototype.deleteCutEdges=function(){this.computeNextCWEdges();PolygonizeGraph.findLabeledEdgeRings(this.dirEdges);var cutLines=new ArrayList;for(var i=this.dirEdges.iterator();i.hasNext();){var de=i.next();if(de.isMarked())continue;var sym=de.getSym();if(de.getLabel()==sym.getLabel()){de.setMarked(true);sym.setMarked(true);var e=de.getEdge();cutLines.add(e.getLine())}}return cutLines};PolygonizeGraph.label=function(dirEdges,label){for(var i=dirEdges.iterator();i.hasNext();){var de=i.next();de.setLabel(label)}};PolygonizeGraph.computeNextCWEdges=function(node){var deStar=node.getOutEdges();var startDE=null;var prevDE=null;for(var i=deStar.getEdges().iterator();i.hasNext();){var outDE=i.next();if(outDE.isMarked())continue;if(startDE==null)startDE=outDE;if(prevDE!=null){var sym=prevDE.getSym();sym.setNext(outDE)}prevDE=outDE}if(prevDE!=null){var sym=prevDE.getSym();sym.setNext(startDE)}};PolygonizeGraph.computeNextCCWEdges=function(node,label){var deStar=node.getOutEdges();var firstOutDE=null;var prevInDE=null;var edges=deStar.getEdges();for(var i=edges.size()-1;i>=0;i--){var de=edges.get(i);var sym=de.getSym();var outDE=null;if(de.getLabel()==label)outDE=de;var inDE=null;if(sym.getLabel()==label)inDE=sym;if(outDE==null&&inDE==null)continue;if(inDE!=null){prevInDE=inDE}if(outDE!=null){if(prevInDE!=null){prevInDE.setNext(outDE);prevInDE=null}if(firstOutDE==null)firstOutDE=outDE}}if(prevInDE!=null){Assert.isTrue(firstOutDE!=null);prevInDE.setNext(firstOutDE)}};PolygonizeGraph.findDirEdgesInRing=function(startDE){var de=startDE;var edges=new ArrayList;do{edges.add(de);de=de.getNext();Assert.isTrue(de!=null,"found null DE in ring");Assert.isTrue(de==startDE||!de.isInRing(),"found DE already in ring")}while(de!=startDE);return edges};PolygonizeGraph.prototype.findEdgeRing=function(startDE){var de=startDE;var er=new EdgeRing(this.factory);do{er.add(de);de.setRing(er);de=de.getNext();Assert.isTrue(de!=null,"found null DE in ring");Assert.isTrue(de==startDE||!de.isInRing(),"found DE already in ring")}while(de!=startDE);return er};PolygonizeGraph.prototype.deleteDangles=function(){var nodesToRemove=this.findNodesOfDegree(1);var dangleLines=new HashSet;var nodeStack=new Stack;for(var i=nodesToRemove.iterator();i.hasNext();){nodeStack.push(i.next())}while(!nodeStack.isEmpty()){var node=nodeStack.pop();PolygonizeGraph.deleteAllEdges(node);var nodeOutEdges=node.getOutEdges().getEdges();for(var i=nodeOutEdges.iterator();i.hasNext();){var de=i.next();de.setMarked(true);var sym=de.getSym();if(sym!=null)sym.setMarked(true);var e=de.getEdge();dangleLines.add(e.getLine());var toNode=de.getToNode();if(PolygonizeGraph.getDegreeNonDeleted(toNode)==1)nodeStack.push(toNode)}}return dangleLines};PolygonizeGraph.prototype.computeDepthParity=function(){while(true){var de=null;if(de==null)return;this.computeDepthParity(de)}};PolygonizeGraph.prototype.computeDepthParity=function(de){};jsts.operation.polygonize.PolygonizeGraph=PolygonizeGraph})();jsts.index.strtree.Interval=function(){var other;if(arguments.length===1){other=arguments[0];return jsts.index.strtree.Interval(other.min,other.max)}else if(arguments.length===2){jsts.util.Assert.isTrue(this.min<=this.max);this.min=arguments[0];this.max=arguments[1]}};jsts.index.strtree.Interval.prototype.min=null;jsts.index.strtree.Interval.prototype.max=null;jsts.index.strtree.Interval.prototype.getCentre=function(){return(this.min+this.max)/2};jsts.index.strtree.Interval.prototype.expandToInclude=function(other){this.max=Math.max(this.max,other.max);this.min=Math.min(this.min,other.min);return this};jsts.index.strtree.Interval.prototype.intersects=function(other){return!(other.min>this.max||other.max<this.min)};jsts.index.strtree.Interval.prototype.equals=function(o){if(!(o instanceof jsts.index.strtree.Interval)){return false}other=o;return this.min===other.min&&this.max===other.max};jsts.geom.GeometryFactory=function(precisionModel){this.precisionModel=precisionModel||new jsts.geom.PrecisionModel};jsts.geom.GeometryFactory.prototype.precisionModel=null;jsts.geom.GeometryFactory.prototype.getPrecisionModel=function(){return this.precisionModel};jsts.geom.GeometryFactory.prototype.createPoint=function(coordinate){var point=new jsts.geom.Point(coordinate,this);return point};jsts.geom.GeometryFactory.prototype.createLineString=function(coordinates){var lineString=new jsts.geom.LineString(coordinates,this);return lineString};jsts.geom.GeometryFactory.prototype.createLinearRing=function(coordinates){var linearRing=new jsts.geom.LinearRing(coordinates,this);return linearRing};jsts.geom.GeometryFactory.prototype.createPolygon=function(shell,holes){var polygon=new jsts.geom.Polygon(shell,holes,this);return polygon};jsts.geom.GeometryFactory.prototype.createMultiPoint=function(points){if(points&&points[0]instanceof jsts.geom.Coordinate){var converted=[];var i;for(i=0;i<points.length;i++){converted.push(this.createPoint(points[i]))}points=converted}return new jsts.geom.MultiPoint(points,this)};jsts.geom.GeometryFactory.prototype.createMultiLineString=function(lineStrings){return new jsts.geom.MultiLineString(lineStrings,this)};jsts.geom.GeometryFactory.prototype.createMultiPolygon=function(polygons){return new jsts.geom.MultiPolygon(polygons,this)};jsts.geom.GeometryFactory.prototype.buildGeometry=function(geomList){var geomClass=null;var isHeterogeneous=false;var hasGeometryCollection=false;for(var i=geomList.iterator();i.hasNext();){var geom=i.next();var partClass=geom.CLASS_NAME;if(geomClass===null){geomClass=partClass}if(!(partClass===geomClass)){isHeterogeneous=true}if(geom.isGeometryCollectionBase())hasGeometryCollection=true}if(geomClass===null){return this.createGeometryCollection(null)}if(isHeterogeneous||hasGeometryCollection){return this.createGeometryCollection(geomList.toArray())}var geom0=geomList.get(0);var isCollection=geomList.size()>1;if(isCollection){if(geom0 instanceof jsts.geom.Polygon){return this.createMultiPolygon(geomList.toArray())}else if(geom0 instanceof jsts.geom.LineString){return this.createMultiLineString(geomList.toArray())}else if(geom0 instanceof jsts.geom.Point){return this.createMultiPoint(geomList.toArray())}jsts.util.Assert.shouldNeverReachHere("Unhandled class: "+geom0)}return geom0};jsts.geom.GeometryFactory.prototype.createGeometryCollection=function(geometries){return new jsts.geom.GeometryCollection(geometries,this)};jsts.geom.GeometryFactory.prototype.toGeometry=function(envelope){if(envelope.isNull()){return this.createPoint(null)}if(envelope.getMinX()===envelope.getMaxX()&&envelope.getMinY()===envelope.getMaxY()){return this.createPoint(new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY()))}if(envelope.getMinX()===envelope.getMaxX()||envelope.getMinY()===envelope.getMaxY()){return this.createLineString([new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY()),new jsts.geom.Coordinate(envelope.getMaxX(),envelope.getMaxY())])}return this.createPolygon(this.createLinearRing([new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY()),new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMaxY()),new jsts.geom.Coordinate(envelope.getMaxX(),envelope.getMaxY()),new jsts.geom.Coordinate(envelope.getMaxX(),envelope.getMinY()),new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY())]),null)};jsts.geomgraph.NodeFactory=function(){};jsts.geomgraph.NodeFactory.prototype.createNode=function(coord){return new jsts.geomgraph.Node(coord,null)};(function(){jsts.geomgraph.Position=function(){};jsts.geomgraph.Position.ON=0;jsts.geomgraph.Position.LEFT=1;jsts.geomgraph.Position.RIGHT=2;jsts.geomgraph.Position.opposite=function(position){if(position===jsts.geomgraph.Position.LEFT){return jsts.geomgraph.Position.RIGHT}if(position===jsts.geomgraph.Position.RIGHT){return jsts.geomgraph.Position.LEFT}return position}})();jsts.geomgraph.TopologyLocation=function(){this.location=[];if(arguments.length===3){var on=arguments[0];var left=arguments[1];var right=arguments[2];this.init(3);this.location[jsts.geomgraph.Position.ON]=on;this.location[jsts.geomgraph.Position.LEFT]=left;this.location[jsts.geomgraph.Position.RIGHT]=right}else if(arguments[0]instanceof jsts.geomgraph.TopologyLocation){var gl=arguments[0];this.init(gl.location.length);if(gl!=null){for(var i=0;i<this.location.length;i++){this.location[i]=gl.location[i]}}}else if(typeof arguments[0]==="number"){var on=arguments[0];this.init(1);this.location[jsts.geomgraph.Position.ON]=on}else if(arguments[0]instanceof Array){var location=arguments[0];this.init(location.length)}};jsts.geomgraph.TopologyLocation.prototype.location=null;jsts.geomgraph.TopologyLocation.prototype.init=function(size){this.location[size-1]=null;this.setAllLocations(jsts.geom.Location.NONE)};jsts.geomgraph.TopologyLocation.prototype.get=function(posIndex){if(posIndex<this.location.length)return this.location[posIndex];return jsts.geom.Location.NONE};jsts.geomgraph.TopologyLocation.prototype.isNull=function(){for(var i=0;i<this.location.length;i++){if(this.location[i]!==jsts.geom.Location.NONE)return false}return true};jsts.geomgraph.TopologyLocation.prototype.isAnyNull=function(){for(var i=0;i<this.location.length;i++){if(this.location[i]===jsts.geom.Location.NONE)return true}return false};jsts.geomgraph.TopologyLocation.prototype.isEqualOnSide=function(le,locIndex){return this.location[locIndex]==le.location[locIndex]};jsts.geomgraph.TopologyLocation.prototype.isArea=function(){return this.location.length>1};jsts.geomgraph.TopologyLocation.prototype.isLine=function(){return this.location.length===1};jsts.geomgraph.TopologyLocation.prototype.flip=function(){if(this.location.length<=1)return;var temp=this.location[jsts.geomgraph.Position.LEFT];this.location[jsts.geomgraph.Position.LEFT]=this.location[jsts.geomgraph.Position.RIGHT];this.location[jsts.geomgraph.Position.RIGHT]=temp};jsts.geomgraph.TopologyLocation.prototype.setAllLocations=function(locValue){for(var i=0;i<this.location.length;i++){this.location[i]=locValue}};jsts.geomgraph.TopologyLocation.prototype.setAllLocationsIfNull=function(locValue){for(var i=0;i<this.location.length;i++){if(this.location[i]===jsts.geom.Location.NONE)this.location[i]=locValue}};jsts.geomgraph.TopologyLocation.prototype.setLocation=function(locIndex,locValue){if(locValue!==undefined){this.location[locIndex]=locValue}else{this.setLocation(jsts.geomgraph.Position.ON,locIndex)}};jsts.geomgraph.TopologyLocation.prototype.getLocations=function(){return location};jsts.geomgraph.TopologyLocation.prototype.setLocations=function(on,left,right){this.location[jsts.geomgraph.Position.ON]=on;this.location[jsts.geomgraph.Position.LEFT]=left;this.location[jsts.geomgraph.Position.RIGHT]=right};jsts.geomgraph.TopologyLocation.prototype.allPositionsEqual=function(loc){for(var i=0;i<this.location.length;i++){if(this.location[i]!==loc)return false}return true};jsts.geomgraph.TopologyLocation.prototype.merge=function(gl){if(gl.location.length>this.location.length){var newLoc=[];newLoc[jsts.geomgraph.Position.ON]=this.location[jsts.geomgraph.Position.ON];newLoc[jsts.geomgraph.Position.LEFT]=jsts.geom.Location.NONE;newLoc[jsts.geomgraph.Position.RIGHT]=jsts.geom.Location.NONE;this.location=newLoc}for(var i=0;i<this.location.length;i++){if(this.location[i]===jsts.geom.Location.NONE&&i<gl.location.length)this.location[i]=gl.location[i]}};jsts.geomgraph.Label=function(){this.elt=[];var geomIndex,onLoc,leftLoc,lbl,rightLoc;if(arguments.length===4){geomIndex=arguments[0];onLoc=arguments[1];leftLoc=arguments[2];rightLoc=arguments[3];this.elt[0]=new jsts.geomgraph.TopologyLocation(jsts.geom.Location.NONE,jsts.geom.Location.NONE,jsts.geom.Location.NONE);this.elt[1]=new jsts.geomgraph.TopologyLocation(jsts.geom.Location.NONE,jsts.geom.Location.NONE,jsts.geom.Location.NONE);this.elt[geomIndex].setLocations(onLoc,leftLoc,rightLoc)}else if(arguments.length===3){onLoc=arguments[0];leftLoc=arguments[1];rightLoc=arguments[2];this.elt[0]=new jsts.geomgraph.TopologyLocation(onLoc,leftLoc,rightLoc);
this.elt[1]=new jsts.geomgraph.TopologyLocation(onLoc,leftLoc,rightLoc)}else if(arguments.length===2){geomIndex=arguments[0];onLoc=arguments[1];this.elt[0]=new jsts.geomgraph.TopologyLocation(jsts.geom.Location.NONE);this.elt[1]=new jsts.geomgraph.TopologyLocation(jsts.geom.Location.NONE);this.elt[geomIndex].setLocation(onLoc)}else if(arguments[0]instanceof jsts.geomgraph.Label){lbl=arguments[0];this.elt[0]=new jsts.geomgraph.TopologyLocation(lbl.elt[0]);this.elt[1]=new jsts.geomgraph.TopologyLocation(lbl.elt[1])}else if(typeof arguments[0]==="number"){onLoc=arguments[0];this.elt[0]=new jsts.geomgraph.TopologyLocation(onLoc);this.elt[1]=new jsts.geomgraph.TopologyLocation(onLoc)}};jsts.geomgraph.Label.toLineLabel=function(label){var i,lineLabel=new jsts.geomgraph.Label(jsts.geom.Location.NONE);for(i=0;i<2;i++){lineLabel.setLocation(i,label.getLocation(i))}return lineLabel};jsts.geomgraph.Label.prototype.elt=null;jsts.geomgraph.Label.prototype.flip=function(){this.elt[0].flip();this.elt[1].flip()};jsts.geomgraph.Label.prototype.getLocation=function(geomIndex,posIndex){if(arguments.length==1){return this.getLocation2.apply(this,arguments)}return this.elt[geomIndex].get(posIndex)};jsts.geomgraph.Label.prototype.getLocation2=function(geomIndex){return this.elt[geomIndex].get(jsts.geomgraph.Position.ON)};jsts.geomgraph.Label.prototype.setLocation=function(geomIndex,posIndex,location){if(arguments.length==2){this.setLocation2.apply(this,arguments);return}this.elt[geomIndex].setLocation(posIndex,location)};jsts.geomgraph.Label.prototype.setLocation2=function(geomIndex,location){this.elt[geomIndex].setLocation(jsts.geomgraph.Position.ON,location)};jsts.geomgraph.Label.prototype.setAllLocations=function(geomIndex,location){this.elt[geomIndex].setAllLocations(location)};jsts.geomgraph.Label.prototype.setAllLocationsIfNull=function(geomIndex,location){if(arguments.length==1){this.setAllLocationsIfNull2.apply(this,arguments);return}this.elt[geomIndex].setAllLocationsIfNull(location)};jsts.geomgraph.Label.prototype.setAllLocationsIfNull2=function(location){this.setAllLocationsIfNull(0,location);this.setAllLocationsIfNull(1,location)};jsts.geomgraph.Label.prototype.merge=function(lbl){var i;for(i=0;i<2;i++){if(this.elt[i]===null&&lbl.elt[i]!==null){this.elt[i]=new jsts.geomgraph.TopologyLocation(lbl.elt[i])}else{this.elt[i].merge(lbl.elt[i])}}};jsts.geomgraph.Label.prototype.getGeometryCount=function(){var count=0;if(!this.elt[0].isNull()){count++}if(!this.elt[1].isNull()){count++}return count};jsts.geomgraph.Label.prototype.isNull=function(geomIndex){return this.elt[geomIndex].isNull()};jsts.geomgraph.Label.prototype.isAnyNull=function(geomIndex){return this.elt[geomIndex].isAnyNull()};jsts.geomgraph.Label.prototype.isArea=function(){if(arguments.length==1){return this.isArea2(arguments[0])}return this.elt[0].isArea()||this.elt[1].isArea()};jsts.geomgraph.Label.prototype.isArea2=function(geomIndex){return this.elt[geomIndex].isArea()};jsts.geomgraph.Label.prototype.isLine=function(geomIndex){return this.elt[geomIndex].isLine()};jsts.geomgraph.Label.prototype.isEqualOnSide=function(lbl,side){return this.elt[0].isEqualOnSide(lbl.elt[0],side)&&this.elt[1].isEqualOnSide(lbl.elt[1],side)};jsts.geomgraph.Label.prototype.allPositionsEqual=function(geomIndex,loc){return this.elt[geomIndex].allPositionsEqual(loc)};jsts.geomgraph.Label.prototype.toLine=function(geomIndex){if(this.elt[geomIndex].isArea()){this.elt[geomIndex]=new jsts.geomgraph.TopologyLocation(this.elt[geomIndex].location[0])}};jsts.geomgraph.EdgeRing=function(start,geometryFactory){this.edges=[];this.pts=[];this.holes=[];this.label=new jsts.geomgraph.Label(jsts.geom.Location.NONE);this.geometryFactory=geometryFactory;if(start){this.computePoints(start);this.computeRing()}};jsts.geomgraph.EdgeRing.prototype.startDe=null;jsts.geomgraph.EdgeRing.prototype.maxNodeDegree=-1;jsts.geomgraph.EdgeRing.prototype.edges=null;jsts.geomgraph.EdgeRing.prototype.pts=null;jsts.geomgraph.EdgeRing.prototype.label=null;jsts.geomgraph.EdgeRing.prototype.ring=null;jsts.geomgraph.EdgeRing.prototype._isHole=null;jsts.geomgraph.EdgeRing.prototype.shell=null;jsts.geomgraph.EdgeRing.prototype.holes=null;jsts.geomgraph.EdgeRing.prototype.geometryFactory=null;jsts.geomgraph.EdgeRing.prototype.isIsolated=function(){return this.label.getGeometryCount()==1};jsts.geomgraph.EdgeRing.prototype.isHole=function(){return this._isHole};jsts.geomgraph.EdgeRing.prototype.getCoordinate=function(i){return this.pts[i]};jsts.geomgraph.EdgeRing.prototype.getLinearRing=function(){return this.ring};jsts.geomgraph.EdgeRing.prototype.getLabel=function(){return this.label};jsts.geomgraph.EdgeRing.prototype.isShell=function(){return this.shell===null};jsts.geomgraph.EdgeRing.prototype.getShell=function(){return this.shell};jsts.geomgraph.EdgeRing.prototype.setShell=function(shell){this.shell=shell;if(shell!==null)shell.addHole(this)};jsts.geomgraph.EdgeRing.prototype.addHole=function(ring){this.holes.push(ring)};jsts.geomgraph.EdgeRing.prototype.toPolygon=function(geometryFactory){var holeLR=[];for(var i=0;i<this.holes.length;i++){holeLR[i]=this.holes[i].getLinearRing()}var poly=this.geometryFactory.createPolygon(this.getLinearRing(),holeLR);return poly};jsts.geomgraph.EdgeRing.prototype.computeRing=function(){if(this.ring!==null)return;var coord=[];for(var i=0;i<this.pts.length;i++){coord[i]=this.pts[i]}this.ring=this.geometryFactory.createLinearRing(coord);this._isHole=jsts.algorithm.CGAlgorithms.isCCW(this.ring.getCoordinates())};jsts.geomgraph.EdgeRing.prototype.getNext=function(de){throw new jsts.error.AbstractInvocationError};jsts.geomgraph.EdgeRing.prototype.setEdgeRing=function(de,er){throw new jsts.error.AbstractInvocationError};jsts.geomgraph.EdgeRing.prototype.getEdges=function(){return this.edges};jsts.geomgraph.EdgeRing.prototype.computePoints=function(start){this.startDe=start;var de=start;var isFirstEdge=true;do{if(de===null)throw new jsts.error.TopologyError("Found null DirectedEdge");if(de.getEdgeRing()===this)throw new jsts.error.TopologyError("Directed Edge visited twice during ring-building at "+de.getCoordinate());this.edges.push(de);var label=de.getLabel();jsts.util.Assert.isTrue(label.isArea());this.mergeLabel(label);this.addPoints(de.getEdge(),de.isForward(),isFirstEdge);isFirstEdge=false;this.setEdgeRing(de,this);de=this.getNext(de)}while(de!==this.startDe)};jsts.geomgraph.EdgeRing.prototype.getMaxNodeDegree=function(){if(this.maxNodeDegree<0)this.computeMaxNodeDegree();return this.maxNodeDegree};jsts.geomgraph.EdgeRing.prototype.computeMaxNodeDegree=function(){this.maxNodeDegree=0;var de=this.startDe;do{var node=de.getNode();var degree=node.getEdges().getOutgoingDegree(this);if(degree>this.maxNodeDegree)this.maxNodeDegree=degree;de=this.getNext(de)}while(de!==this.startDe);this.maxNodeDegree*=2};jsts.geomgraph.EdgeRing.prototype.setInResult=function(){var de=this.startDe;do{de.getEdge().setInResult(true);de=de.getNext()}while(de!=this.startDe)};jsts.geomgraph.EdgeRing.prototype.mergeLabel=function(deLabel){this.mergeLabel2(deLabel,0);this.mergeLabel2(deLabel,1)};jsts.geomgraph.EdgeRing.prototype.mergeLabel2=function(deLabel,geomIndex){var loc=deLabel.getLocation(geomIndex,jsts.geomgraph.Position.RIGHT);if(loc==jsts.geom.Location.NONE)return;if(this.label.getLocation(geomIndex)===jsts.geom.Location.NONE){this.label.setLocation(geomIndex,loc);return}};jsts.geomgraph.EdgeRing.prototype.addPoints=function(edge,isForward,isFirstEdge){var edgePts=edge.getCoordinates();if(isForward){var startIndex=1;if(isFirstEdge)startIndex=0;for(var i=startIndex;i<edgePts.length;i++){this.pts.push(edgePts[i])}}else{var startIndex=edgePts.length-2;if(isFirstEdge)startIndex=edgePts.length-1;for(var i=startIndex;i>=0;i--){this.pts.push(edgePts[i])}}};jsts.geomgraph.EdgeRing.prototype.containsPoint=function(p){var shell=this.getLinearRing();var env=shell.getEnvelopeInternal();if(!env.contains(p))return false;if(!jsts.algorithm.CGAlgorithms.isPointInRing(p,shell.getCoordinates()))return false;for(var i=0;i<this.holes.length;i++){var hole=this.holes[i];if(hole.containsPoint(p))return false}return true};(function(){jsts.geom.LinearRing=function(points,factory){jsts.geom.LineString.apply(this,arguments)};jsts.geom.LinearRing.prototype=new jsts.geom.LineString;jsts.geom.LinearRing.constructor=jsts.geom.LinearRing;jsts.geom.LinearRing.prototype.getBoundaryDimension=function(){return jsts.geom.Dimension.FALSE};jsts.geom.LinearRing.prototype.isSimple=function(){return true};jsts.geom.LinearRing.prototype.getGeometryType=function(){return"LinearRing"};jsts.geom.LinearRing.MINIMUM_VALID_SIZE=4;jsts.geom.LinearRing.prototype.CLASS_NAME="jsts.geom.LinearRing"})();jsts.index.strtree.Boundable=function(){};jsts.index.strtree.Boundable.prototype.getBounds=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractNode=function(level){this.level=level;this.childBoundables=[]};jsts.index.strtree.AbstractNode.prototype=new jsts.index.strtree.Boundable;jsts.index.strtree.AbstractNode.constructor=jsts.index.strtree.AbstractNode;jsts.index.strtree.AbstractNode.prototype.childBoundables=null;jsts.index.strtree.AbstractNode.prototype.bounds=null;jsts.index.strtree.AbstractNode.prototype.level=null;jsts.index.strtree.AbstractNode.prototype.getChildBoundables=function(){return this.childBoundables};jsts.index.strtree.AbstractNode.prototype.computeBounds=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractNode.prototype.getBounds=function(){if(this.bounds===null){this.bounds=this.computeBounds()}return this.bounds};jsts.index.strtree.AbstractNode.prototype.getLevel=function(){return this.level};jsts.index.strtree.AbstractNode.prototype.addChildBoundable=function(childBoundable){this.childBoundables.push(childBoundable)};(function(){jsts.noding.Noder=function(){};jsts.noding.Noder.prototype.computeNodes=jsts.abstractFunc;jsts.noding.Noder.prototype.getNodedSubstrings=jsts.abstractFunc})();(function(){var Noder=jsts.noding.Noder;jsts.noding.SinglePassNoder=function(){};jsts.noding.SinglePassNoder.prototype=new Noder;jsts.noding.SinglePassNoder.constructor=jsts.noding.SinglePassNoder;jsts.noding.SinglePassNoder.prototype.segInt=null;jsts.noding.SinglePassNoder.prototype.setSegmentIntersector=function(segInt){this.segInt=segInt}})();jsts.index.SpatialIndex=function(){};jsts.index.SpatialIndex.prototype.insert=function(itemEnv,item){throw new jsts.error.AbstractMethodInvocationError};jsts.index.SpatialIndex.prototype.query=function(searchEnv,visitor){throw new jsts.error.AbstractMethodInvocationError};jsts.index.SpatialIndex.prototype.remove=function(itemEnv,item){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractSTRtree=function(nodeCapacity){if(nodeCapacity===undefined)return;this.itemBoundables=[];jsts.util.Assert.isTrue(nodeCapacity>1,"Node capacity must be greater than 1");this.nodeCapacity=nodeCapacity};jsts.index.strtree.AbstractSTRtree.IntersectsOp=function(){};jsts.index.strtree.AbstractSTRtree.IntersectsOp.prototype.intersects=function(aBounds,bBounds){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractSTRtree.prototype.root=null;jsts.index.strtree.AbstractSTRtree.prototype.built=false;jsts.index.strtree.AbstractSTRtree.prototype.itemBoundables=null;jsts.index.strtree.AbstractSTRtree.prototype.nodeCapacity=null;jsts.index.strtree.AbstractSTRtree.prototype.build=function(){jsts.util.Assert.isTrue(!this.built);this.root=this.itemBoundables.length===0?this.createNode(0):this.createHigherLevels(this.itemBoundables,-1);this.built=true};jsts.index.strtree.AbstractSTRtree.prototype.createNode=function(level){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractSTRtree.prototype.createParentBoundables=function(childBoundables,newLevel){jsts.util.Assert.isTrue(!(childBoundables.length===0));var parentBoundables=[];parentBoundables.push(this.createNode(newLevel));var sortedChildBoundables=[];for(var i=0;i<childBoundables.length;i++){sortedChildBoundables.push(childBoundables[i])}sortedChildBoundables.sort(this.getComparator());for(var i=0;i<sortedChildBoundables.length;i++){var childBoundable=sortedChildBoundables[i];if(this.lastNode(parentBoundables).getChildBoundables().length===this.getNodeCapacity()){parentBoundables.push(this.createNode(newLevel))}this.lastNode(parentBoundables).addChildBoundable(childBoundable)}return parentBoundables};jsts.index.strtree.AbstractSTRtree.prototype.lastNode=function(nodes){return nodes[nodes.length-1]};jsts.index.strtree.AbstractSTRtree.prototype.compareDoubles=function(a,b){return a>b?1:a<b?-1:0};jsts.index.strtree.AbstractSTRtree.prototype.createHigherLevels=function(boundablesOfALevel,level){jsts.util.Assert.isTrue(!(boundablesOfALevel.length===0));var parentBoundables=this.createParentBoundables(boundablesOfALevel,level+1);if(parentBoundables.length===1){return parentBoundables[0]}return this.createHigherLevels(parentBoundables,level+1)};jsts.index.strtree.AbstractSTRtree.prototype.getRoot=function(){if(!this.built)this.build();return this.root};jsts.index.strtree.AbstractSTRtree.prototype.getNodeCapacity=function(){return this.nodeCapacity};jsts.index.strtree.AbstractSTRtree.prototype.size=function(){if(arguments.length===1){return this.size2(arguments[0])}if(!this.built){this.build()}if(this.itemBoundables.length===0){return 0}return this.size2(root)};jsts.index.strtree.AbstractSTRtree.prototype.size2=function(node){var size=0;var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(childBoundable instanceof jsts.index.strtree.AbstractNode){size+=this.size(childBoundable)}else if(childBoundable instanceof jsts.index.strtree.ItemBoundable){size+=1}}return size};jsts.index.strtree.AbstractSTRtree.prototype.depth=function(){if(arguments.length===1){return this.depth2(arguments[0])}if(!this.built){this.build()}if(this.itemBoundables.length===0){return 0}return this.depth2(root)};jsts.index.strtree.AbstractSTRtree.prototype.depth2=function(){var maxChildDepth=0;var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(childBoundable instanceof jsts.index.strtree.AbstractNode){var childDepth=this.depth(childBoundable);if(childDepth>maxChildDepth)maxChildDepth=childDepth}}return maxChildDepth+1};jsts.index.strtree.AbstractSTRtree.prototype.insert=function(bounds,item){jsts.util.Assert.isTrue(!this.built,"Cannot insert items into an STR packed R-tree after it has been built.");this.itemBoundables.push(new jsts.index.strtree.ItemBoundable(bounds,item))};jsts.index.strtree.AbstractSTRtree.prototype.query=function(searchBounds){if(arguments.length>1){this.query2.apply(this,arguments)}if(!this.built){this.build()}var matches=[];if(this.itemBoundables.length===0){jsts.util.Assert.isTrue(this.root.getBounds()===null);return matches}if(this.getIntersectsOp().intersects(this.root.getBounds(),searchBounds)){this.query3(searchBounds,this.root,matches)}return matches};jsts.index.strtree.AbstractSTRtree.prototype.query2=function(searchBounds,visitor){if(arguments.length>2){this.query3.apply(this,arguments)}if(!this.built){this.build()}if(this.itemBoundables.length===0){jsts.util.Assert.isTrue(this.root.getBounds()===null)}if(this.getIntersectsOp().intersects(this.root.getBounds(),searchBounds)){this.query4(searchBounds,this.root,visitor)}};jsts.index.strtree.AbstractSTRtree.prototype.query3=function(searchBounds,node,matches){if(!(arguments[2]instanceof Array)){this.query4.apply(this,arguments)}var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(!this.getIntersectsOp().intersects(childBoundable.getBounds(),searchBounds)){continue}if(childBoundable instanceof jsts.index.strtree.AbstractNode){this.query3(searchBounds,childBoundable,matches)}else if(childBoundable instanceof jsts.index.strtree.ItemBoundable){matches.push(childBoundable.getItem())}else{jsts.util.Assert.shouldNeverReachHere()}}};jsts.index.strtree.AbstractSTRtree.prototype.query4=function(searchBounds,node,visitor){var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(!this.getIntersectsOp().intersects(childBoundable.getBounds(),searchBounds)){continue}if(childBoundable instanceof jsts.index.strtree.AbstractNode){this.query4(searchBounds,childBoundable,visitor)}else if(childBoundable instanceof jsts.index.strtree.ItemBoundable){visitor.visitItem(childBoundable.getItem())}else{jsts.util.Assert.shouldNeverReachHere()}}};jsts.index.strtree.AbstractSTRtree.prototype.getIntersectsOp=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractSTRtree.prototype.itemsTree=function(){if(arguments.length===1){return this.itemsTree2.apply(this,arguments)}if(!this.built){this.build()}var valuesTree=this.itemsTree2(this.root);if(valuesTree===null)return[];return valuesTree};jsts.index.strtree.AbstractSTRtree.prototype.itemsTree2=function(node){var valuesTreeForNode=[];var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(childBoundable instanceof jsts.index.strtree.AbstractNode){var valuesTreeForChild=this.itemsTree(childBoundable);if(valuesTreeForChild!=null)valuesTreeForNode.push(valuesTreeForChild)}else if(childBoundable instanceof jsts.index.strtree.ItemBoundable){valuesTreeForNode.push(childBoundable.getItem())}else{jsts.util.Assert.shouldNeverReachHere()}}if(valuesTreeForNode.length<=0)return null;return valuesTreeForNode};jsts.index.strtree.AbstractSTRtree.prototype.remove=function(searchBounds,item){if(!this.built){this.build()}if(this.itemBoundables.length===0){jsts.util.Assert.isTrue(this.root.getBounds()==null)}if(this.getIntersectsOp().intersects(this.root.getBounds(),searchBounds)){return this.remove2(searchBounds,this.root,item)}return false};jsts.index.strtree.AbstractSTRtree.prototype.remove2=function(searchBounds,node,item){var found=this.removeItem(node,item);if(found)return true;var childToPrune=null;var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(!this.getIntersectsOp().intersects(childBoundable.getBounds(),searchBounds)){continue}if(childBoundable instanceof jsts.index.strtree.AbstractNode){found=this.remove(searchBounds,childBoundable,item);if(found){childToPrune=childBoundable;break}}}if(childToPrune!=null){if(childToPrune.getChildBoundables().length===0){childBoundables.splice(childBoundables.indexOf(childToPrune),1)}}return found};jsts.index.strtree.AbstractSTRtree.prototype.removeItem=function(node,item){var childToRemove=null;var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(childBoundable instanceof jsts.index.strtree.ItemBoundable){if(childBoundable.getItem()===item)childToRemove=childBoundable}}if(childToRemove!==null){childBoundables.splice(childBoundables.indexOf(childToRemove),1);return true}return false};jsts.index.strtree.AbstractSTRtree.prototype.boundablesAtLevel=function(level){if(arguments.length>1){this.boundablesAtLevel2.apply(this,arguments);return}var boundables=[];this.boundablesAtLevel2(level,this.root,boundables);return boundables};jsts.index.strtree.AbstractSTRtree.prototype.boundablesAtLevel2=function(level,top,boundables){jsts.util.Assert.isTrue(level>-2);if(top.getLevel()===level){boundables.add(top);return}var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var boundable=childBoundables[i];if(boundable instanceof jsts.index.strtree.AbstractNode){this.boundablesAtLevel(level,boundable,boundables)}else{jsts.util.Assert.isTrue(boundable instanceof jsts.index.strtree.ItemBoundable);if(level===-1){boundables.add(boundable)}}}return};jsts.index.strtree.AbstractSTRtree.prototype.getComparator=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.STRtree=function(nodeCapacity){nodeCapacity=nodeCapacity||jsts.index.strtree.STRtree.DEFAULT_NODE_CAPACITY;jsts.index.strtree.AbstractSTRtree.call(this,nodeCapacity)};jsts.index.strtree.STRtree.prototype=new jsts.index.strtree.AbstractSTRtree;jsts.index.strtree.STRtree.constructor=jsts.index.strtree.STRtree;jsts.index.strtree.STRtree.prototype.xComparator=function(o1,o2){return jsts.index.strtree.AbstractSTRtree.prototype.compareDoubles(jsts.index.strtree.STRtree.prototype.centreX(o1.getBounds()),jsts.index.strtree.STRtree.prototype.centreX(o2.getBounds()))};jsts.index.strtree.STRtree.prototype.yComparator=function(o1,o2){return jsts.index.strtree.AbstractSTRtree.prototype.compareDoubles(jsts.index.strtree.STRtree.prototype.centreY(o1.getBounds()),jsts.index.strtree.STRtree.prototype.centreY(o2.getBounds()))};jsts.index.strtree.STRtree.prototype.centreX=function(e){return jsts.index.strtree.STRtree.prototype.avg(e.getMinX(),e.getMaxX())};jsts.index.strtree.STRtree.prototype.centreY=function(e){return jsts.index.strtree.STRtree.prototype.avg(e.getMinY(),e.getMaxY())};jsts.index.strtree.STRtree.prototype.avg=function(a,b){return(a+b)/2};jsts.index.strtree.STRtree.prototype.intersectsOp={intersects:function(aBounds,bBounds){return aBounds.intersects(bBounds)}};jsts.index.strtree.STRtree.prototype.createParentBoundables=function(childBoundables,newLevel){jsts.util.Assert.isTrue(!(childBoundables.length===0));var minLeafCount=Math.ceil(childBoundables.length/this.getNodeCapacity());var sortedChildBoundables=[];for(var i=0;i<childBoundables.length;i++){sortedChildBoundables.push(childBoundables[i])}sortedChildBoundables.sort(this.xComparator);var verticalSlices=this.verticalSlices(sortedChildBoundables,Math.ceil(Math.sqrt(minLeafCount)));return this.createParentBoundablesFromVerticalSlices(verticalSlices,newLevel)};jsts.index.strtree.STRtree.prototype.createParentBoundablesFromVerticalSlices=function(verticalSlices,newLevel){jsts.util.Assert.isTrue(verticalSlices.length>0);var parentBoundables=[];for(var i=0;i<verticalSlices.length;i++){parentBoundables=parentBoundables.concat(this.createParentBoundablesFromVerticalSlice(verticalSlices[i],newLevel))}return parentBoundables};jsts.index.strtree.STRtree.prototype.createParentBoundablesFromVerticalSlice=function(childBoundables,newLevel){return jsts.index.strtree.AbstractSTRtree.prototype.createParentBoundables.call(this,childBoundables,newLevel)};jsts.index.strtree.STRtree.prototype.verticalSlices=function(childBoundables,sliceCount){var sliceCapacity=Math.ceil(childBoundables.length/sliceCount);var slices=[];var i=0,boundablesAddedToSlice,childBoundable;for(var j=0;j<sliceCount;j++){slices[j]=[];boundablesAddedToSlice=0;while(i<childBoundables.length&&boundablesAddedToSlice<sliceCapacity){childBoundable=childBoundables[i++];slices[j].push(childBoundable);boundablesAddedToSlice++}}return slices};jsts.index.strtree.STRtree.DEFAULT_NODE_CAPACITY=10;jsts.index.strtree.STRtree.prototype.createNode=function(level){var abstractNode=new jsts.index.strtree.AbstractNode(level);abstractNode.computeBounds=function(){var bounds=null;var childBoundables=this.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(bounds===null){bounds=new jsts.geom.Envelope(childBoundable.getBounds())}else{bounds.expandToInclude(childBoundable.getBounds())}}return bounds};return abstractNode};jsts.index.strtree.STRtree.prototype.getIntersectsOp=function(){return this.intersectsOp};jsts.index.strtree.STRtree.prototype.insert=function(itemEnv,item){if(itemEnv.isNull()){return}jsts.index.strtree.AbstractSTRtree.prototype.insert.call(this,itemEnv,item)};jsts.index.strtree.STRtree.prototype.query=function(searchEnv,visitor){return jsts.index.strtree.AbstractSTRtree.prototype.query.apply(this,arguments)};jsts.index.strtree.STRtree.prototype.remove=function(itemEnv,item){return jsts.index.strtree.AbstractSTRtree.prototype.remove.call(this,itemEnv,item)};jsts.index.strtree.STRtree.prototype.size=function(){return jsts.index.strtree.AbstractSTRtree.prototype.size.call(this)};jsts.index.strtree.STRtree.prototype.depth=function(){return jsts.index.strtree.AbstractSTRtree.prototype.depth.call(this)};jsts.index.strtree.STRtree.prototype.getComparator=function(){return this.yComparator};jsts.index.strtree.STRtree.prototype.nearestNeighbour=function(itemDist){var bp=new jsts.index.strtree.BoundablePair(this.getRoot(),this.getRoot(),itemDist);return this.nearestNeighbour4(bp)};jsts.index.strtree.STRtree.prototype.nearestNeighbour2=function(env,item,itemDist){var bnd=new jsts.index.strtree.ItemBoundable(env,item);var bp=new jsts.index.strtree.BoundablePair(this.getRoot(),bnd,itemDist);return this.nearestNeighbour4(bp)[0]};jsts.index.strtree.STRtree.prototype.nearestNeighbour3=function(tree,itemDist){var bp=new jsts.index.strtree.BoundablePair(this.getRoot(),tree.getRoot(),itemDist);return this.nearestNeighbour4(bp)};jsts.index.strtree.STRtree.prototype.nearestNeighbour4=function(initBndPair){return this.nearestNeighbour5(initBndPair,Double.POSITIVE_INFINITY)};jsts.index.strtree.STRtree.prototype.nearestNeighbour5=function(initBndPair,maxDistance){var distanceLowerBound=maxDistance;var minPair=null;var priQ=[];priQ.push(initBndPair);while(!priQ.isEmpty()&&distanceLowerBound>0){var bndPair=priQ.pop();var currentDistance=bndPair.getDistance();if(currentDistance>=distanceLowerBound)break;if(bndPair.isLeaves()){distanceLowerBound=currentDistance;minPair=bndPair}else{bndPair.expandToQueue(priQ,distanceLowerBound)}}return[minPair.getBoundable(0).getItem(),minPair.getBoundable(1).getItem()]};jsts.noding.SegmentString=function(){};jsts.noding.SegmentString.prototype.getData=jsts.abstractFunc;jsts.noding.SegmentString.prototype.setData=jsts.abstractFunc;jsts.noding.SegmentString.prototype.size=jsts.abstractFunc;jsts.noding.SegmentString.prototype.getCoordinate=jsts.abstractFunc;jsts.noding.SegmentString.prototype.getCoordinates=jsts.abstractFunc;jsts.noding.SegmentString.prototype.isClosed=jsts.abstractFunc;jsts.noding.NodableSegmentString=function(){};jsts.noding.NodableSegmentString.prototype=new jsts.noding.SegmentString;jsts.noding.NodableSegmentString.prototype.addIntersection=jsts.abstractFunc;jsts.noding.NodedSegmentString=function(pts,data){this.nodeList=new jsts.noding.SegmentNodeList(this);this.pts=pts;this.data=data};jsts.noding.NodedSegmentString.prototype=new jsts.noding.NodableSegmentString;jsts.noding.NodedSegmentString.constructor=jsts.noding.NodedSegmentString;jsts.noding.NodedSegmentString.getNodedSubstrings=function(segStrings){if(arguments.length===2){jsts.noding.NodedSegmentString.getNodedSubstrings2.apply(this,arguments);return}var resultEdgelist=new javascript.util.ArrayList;jsts.noding.NodedSegmentString.getNodedSubstrings2(segStrings,resultEdgelist);return resultEdgelist};jsts.noding.NodedSegmentString.getNodedSubstrings2=function(segStrings,resultEdgelist){for(var i=segStrings.iterator();i.hasNext();){var ss=i.next();ss.getNodeList().addSplitEdges(resultEdgelist)}};jsts.noding.NodedSegmentString.prototype.nodeList=null;jsts.noding.NodedSegmentString.prototype.pts=null;jsts.noding.NodedSegmentString.prototype.data=null;jsts.noding.NodedSegmentString.prototype.getData=function(){return this.data};jsts.noding.NodedSegmentString.prototype.setData=function(data){this.data=data};jsts.noding.NodedSegmentString.prototype.getNodeList=function(){return this.nodeList};jsts.noding.NodedSegmentString.prototype.size=function(){return this.pts.length};jsts.noding.NodedSegmentString.prototype.getCoordinate=function(i){return this.pts[i]};jsts.noding.NodedSegmentString.prototype.getCoordinates=function(){return this.pts};jsts.noding.NodedSegmentString.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1])};jsts.noding.NodedSegmentString.prototype.getSegmentOctant=function(index){if(index===this.pts.length-1)return-1;return this.safeOctant(this.getCoordinate(index),this.getCoordinate(index+1))};jsts.noding.NodedSegmentString.prototype.safeOctant=function(p0,p1){if(p0.equals2D(p1))return 0;return jsts.noding.Octant.octant(p0,p1)};jsts.noding.NodedSegmentString.prototype.addIntersections=function(li,segmentIndex,geomIndex){for(var i=0;i<li.getIntersectionNum();i++){this.addIntersection(li,segmentIndex,geomIndex,i)}};jsts.noding.NodedSegmentString.prototype.addIntersection=function(li,segmentIndex,geomIndex,intIndex){if(li instanceof jsts.geom.Coordinate){this.addIntersection2.apply(this,arguments);return}var intPt=new jsts.geom.Coordinate(li.getIntersection(intIndex));this.addIntersection2(intPt,segmentIndex)};jsts.noding.NodedSegmentString.prototype.addIntersection2=function(intPt,segmentIndex){this.addIntersectionNode(intPt,segmentIndex)};jsts.noding.NodedSegmentString.prototype.addIntersectionNode=function(intPt,segmentIndex){var normalizedSegmentIndex=segmentIndex;var nextSegIndex=normalizedSegmentIndex+1;if(nextSegIndex<this.pts.length){var nextPt=this.pts[nextSegIndex];if(intPt.equals2D(nextPt)){normalizedSegmentIndex=nextSegIndex}}var ei=this.nodeList.add(intPt,normalizedSegmentIndex);return ei};jsts.noding.NodedSegmentString.prototype.toString=function(){var geometryFactory=new jsts.geom.GeometryFactory;return(new jsts.io.WKTWriter).write(geometryFactory.createLineString(this.pts))};jsts.index.chain.MonotoneChainBuilder=function(){};jsts.index.chain.MonotoneChainBuilder.toIntArray=function(list){var array=[];for(var i=0;i<list.length;i++){array[i]=list[i]}return array};jsts.index.chain.MonotoneChainBuilder.getChains=function(pts){if(arguments.length===2){return jsts.index.chain.MonotoneChainBuilder.getChains2.apply(this,arguments)}return jsts.index.chain.MonotoneChainBuilder.getChains2(pts,null)};jsts.index.chain.MonotoneChainBuilder.getChains2=function(pts,context){var mcList=[];var startIndex=jsts.index.chain.MonotoneChainBuilder.getChainStartIndices(pts);for(var i=0;i<startIndex.length-1;i++){var mc=new jsts.index.chain.MonotoneChain(pts,startIndex[i],startIndex[i+1],context);mcList.push(mc)}return mcList};jsts.index.chain.MonotoneChainBuilder.getChainStartIndices=function(pts){var start=0;var startIndexList=[];startIndexList.push(start);do{var last=jsts.index.chain.MonotoneChainBuilder.findChainEnd(pts,start);startIndexList.push(last);start=last}while(start<pts.length-1);var startIndex=jsts.index.chain.MonotoneChainBuilder.toIntArray(startIndexList);return startIndex};jsts.index.chain.MonotoneChainBuilder.findChainEnd=function(pts,start){var safeStart=start;while(safeStart<pts.length-1&&pts[safeStart].equals2D(pts[safeStart+1])){safeStart++}if(safeStart>=pts.length-1){return pts.length-1}var chainQuad=jsts.geomgraph.Quadrant.quadrant(pts[safeStart],pts[safeStart+1]);var last=start+1;while(last<pts.length){if(!pts[last-1].equals2D(pts[last])){var quad=jsts.geomgraph.Quadrant.quadrant(pts[last-1],pts[last]);if(quad!==chainQuad)break}last++}return last-1};jsts.geom.LineSegment=function(p0,p1){if(p0===undefined){this.p0=new jsts.geom.Coordinate;this.p1=new jsts.geom.Coordinate;return}this.p0=p0;this.p1=p1};jsts.geom.LineSegment.prototype.p0=null;jsts.geom.LineSegment.prototype.p1=null;jsts.geom.LineSegment.prototype.getLength=function(){return this.p0.distance(this.p1)};jsts.geom.LineSegment.prototype.isHorizontal=function(){return this.p0.y===this.p1.y};jsts.geom.LineSegment.prototype.isVertical=function(){return this.p0.x===this.p1.x};jsts.geom.LineSegment.prototype.reverse=function(){var temp=this.p0;this.p0=this.p1;this.p1=temp};jsts.geom.LineSegment.prototype.projectionFactor=function(p){if(p.equals(this.p0))return 0;if(p.equals(this.p1))return 1;var dx=this.p1.x-this.p0.x;var dy=this.p1.y-this.p0.y;var len2=dx*dx+dy*dy;var r=((p.x-this.p0.x)*dx+(p.y-this.p0.y)*dy)/len2;return r};jsts.geom.LineSegment.prototype.closestPoint=function(p){var factor=this.projectionFactor(p);
if(factor>0&&factor<1){return this.project(p)}var dist0=this.p0.distance(p);var dist1=this.p1.distance(p);if(dist0<dist1)return this.p0;return this.p1};jsts.geom.LineSegment.prototype.closestPoints=function(line){var intPt=this.intersection(line);if(intPt!==null){return[intPt,intPt]}var closestPt=[];var minDistance=Number.MAX_VALUE;var dist;var close00=this.closestPoint(line.p0);minDistance=close00.distance(line.p0);closestPt[0]=close00;closestPt[1]=line.p0;var close01=this.closestPoint(line.p1);dist=close01.distance(line.p1);if(dist<minDistance){minDistance=dist;closestPt[0]=close01;closestPt[1]=line.p1}var close10=line.closestPoint(this.p0);dist=close10.distance(this.p0);if(dist<minDistance){minDistance=dist;closestPt[0]=this.p0;closestPt[1]=close10}var close11=line.closestPoint(this.p1);dist=close11.distance(this.p1);if(dist<minDistance){minDistance=dist;closestPt[0]=this.p1;closestPt[1]=close11}return closestPt};jsts.geom.LineSegment.prototype.intersection=function(line){var li=new jsts.algorithm.RobustLineIntersector;li.computeIntersection(this.p0,this.p1,line.p0,line.p1);if(li.hasIntersection())return li.getIntersection(0);return null};jsts.geom.LineSegment.prototype.project=function(p){if(p.equals(this.p0)||p.equals(this.p1))return new jsts.geom.Coordinate(p);var r=this.projectionFactor(p);var coord=new jsts.geom.Coordinate;coord.x=this.p0.x+r*(this.p1.x-this.p0.x);coord.y=this.p0.y+r*(this.p1.y-this.p0.y);return coord};jsts.geom.LineSegment.prototype.setCoordinates=function(ls){if(ls instanceof jsts.geom.Coordinate){this.setCoordinates2.apply(this,arguments);return}this.setCoordinates2(ls.p0,ls.p1)};jsts.geom.LineSegment.prototype.setCoordinates2=function(p0,p1){this.p0.x=p0.x;this.p0.y=p0.y;this.p1.x=p1.x;this.p1.y=p1.y};jsts.geom.LineSegment.prototype.distance=function(p){return jsts.algorithm.CGAlgorithms.distancePointLine(p,this.p0,this.p1)};jsts.index.chain.MonotoneChainOverlapAction=function(){this.tempEnv1=new jsts.geom.Envelope;this.tempEnv2=new jsts.geom.Envelope;this.overlapSeg1=new jsts.geom.LineSegment;this.overlapSeg2=new jsts.geom.LineSegment};jsts.index.chain.MonotoneChainOverlapAction.prototype.tempEnv1=null;jsts.index.chain.MonotoneChainOverlapAction.prototype.tempEnv2=null;jsts.index.chain.MonotoneChainOverlapAction.prototype.overlapSeg1=null;jsts.index.chain.MonotoneChainOverlapAction.prototype.overlapSeg2=null;jsts.index.chain.MonotoneChainOverlapAction.prototype.overlap=function(mc1,start1,mc2,start2){this.mc1.getLineSegment(start1,this.overlapSeg1);this.mc2.getLineSegment(start2,this.overlapSeg2);this.overlap2(this.overlapSeg1,this.overlapSeg2)};jsts.index.chain.MonotoneChainOverlapAction.prototype.overlap2=function(seg1,seg2){};(function(){var MonotoneChainOverlapAction=jsts.index.chain.MonotoneChainOverlapAction;var SinglePassNoder=jsts.noding.SinglePassNoder;var STRtree=jsts.index.strtree.STRtree;var NodedSegmentString=jsts.noding.NodedSegmentString;var MonotoneChainBuilder=jsts.index.chain.MonotoneChainBuilder;var SegmentOverlapAction=function(si){this.si=si};SegmentOverlapAction.prototype=new MonotoneChainOverlapAction;SegmentOverlapAction.constructor=SegmentOverlapAction;SegmentOverlapAction.prototype.si=null;SegmentOverlapAction.prototype.overlap=function(mc1,start1,mc2,start2){var ss1=mc1.getContext();var ss2=mc2.getContext();this.si.processIntersections(ss1,start1,ss2,start2)};jsts.noding.MCIndexNoder=function(){this.monoChains=[];this.index=new STRtree};jsts.noding.MCIndexNoder.prototype=new SinglePassNoder;jsts.noding.MCIndexNoder.constructor=jsts.noding.MCIndexNoder;jsts.noding.MCIndexNoder.prototype.monoChains=null;jsts.noding.MCIndexNoder.prototype.index=null;jsts.noding.MCIndexNoder.prototype.idCounter=0;jsts.noding.MCIndexNoder.prototype.nodedSegStrings=null;jsts.noding.MCIndexNoder.prototype.nOverlaps=0;jsts.noding.MCIndexNoder.prototype.getMonotoneChains=function(){return this.monoChains};jsts.noding.MCIndexNoder.prototype.getIndex=function(){return this.index};jsts.noding.MCIndexNoder.prototype.getNodedSubstrings=function(){return NodedSegmentString.getNodedSubstrings(this.nodedSegStrings)};jsts.noding.MCIndexNoder.prototype.computeNodes=function(inputSegStrings){this.nodedSegStrings=inputSegStrings;for(var i=inputSegStrings.iterator();i.hasNext();){this.add(i.next())}this.intersectChains()};jsts.noding.MCIndexNoder.prototype.intersectChains=function(){var overlapAction=new SegmentOverlapAction(this.segInt);for(var i=0;i<this.monoChains.length;i++){var queryChain=this.monoChains[i];var overlapChains=this.index.query(queryChain.getEnvelope());for(var j=0;j<overlapChains.length;j++){var testChain=overlapChains[j];if(testChain.getId()>queryChain.getId()){queryChain.computeOverlaps(testChain,overlapAction);this.nOverlaps++}if(this.segInt.isDone())return}}};jsts.noding.MCIndexNoder.prototype.add=function(segStr){var segChains=MonotoneChainBuilder.getChains(segStr.getCoordinates(),segStr);for(var i=0;i<segChains.length;i++){var mc=segChains[i];mc.setId(this.idCounter++);this.index.insert(mc.getEnvelope(),mc);this.monoChains.push(mc)}}})();jsts.simplify.LineSegmentIndex=function(){this.index=new jsts.index.quadtree.Quadtree};jsts.simplify.LineSegmentIndex.prototype.index=null;jsts.simplify.LineSegmentIndex.prototype.add=function(line){if(line instanceof jsts.geom.LineSegment){this.add2(line);return}var segs=line.getSegments();for(var i=0;i<segs.length;i++){var seg=segs[i];this.add2(seg)}};jsts.simplify.LineSegmentIndex.prototype.add2=function(seg){this.index.insert(new jsts.geom.Envelope(seg.p0,seg.p1),seg)};jsts.simplify.LineSegmentIndex.prototype.remove=function(seg){this.index.remove(new jsts.geom.Envelope(seg.p0,seg.p1),seg)};jsts.simplify.LineSegmentIndex.prototype.query=function(querySeg){var env=new jsts.geom.Envelope(querySeg.p0,querySeg.p1);var visitor=new jsts.simplify.LineSegmentIndex.LineSegmentVisitor(querySeg);this.index.query(env,visitor);var itemsFound=visitor.getItems();return itemsFound};jsts.simplify.LineSegmentIndex.LineSegmentVisitor=function(querySeg){this.items=[];this.querySeg=querySeg};jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype=new jsts.index.ItemVisitor;jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype.querySeg=null;jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype.items=null;jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype.visitItem=function(item){var seg=item;if(jsts.geom.Envelope.intersects(seg.p0,seg.p1,this.querySeg.p0,this.querySeg.p1))this.items.push(item)};jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype.getItems=function(){return this.items};jsts.geomgraph.EdgeEndStar=function(){this.edgeMap=new javascript.util.TreeMap;this.edgeList=null;this.ptInAreaLocation=[jsts.geom.Location.NONE,jsts.geom.Location.NONE]};jsts.geomgraph.EdgeEndStar.prototype.edgeMap=null;jsts.geomgraph.EdgeEndStar.prototype.edgeList=null;jsts.geomgraph.EdgeEndStar.prototype.ptInAreaLocation=null;jsts.geomgraph.EdgeEndStar.prototype.insert=function(e){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.EdgeEndStar.prototype.insertEdgeEnd=function(e,obj){this.edgeMap.put(e,obj);this.edgeList=null};jsts.geomgraph.EdgeEndStar.prototype.getCoordinate=function(){var it=this.iterator();if(!it.hasNext())return null;var e=it.next();return e.getCoordinate()};jsts.geomgraph.EdgeEndStar.prototype.getDegree=function(){return this.edgeMap.size()};jsts.geomgraph.EdgeEndStar.prototype.iterator=function(){return this.getEdges().iterator()};jsts.geomgraph.EdgeEndStar.prototype.getEdges=function(){if(this.edgeList===null){this.edgeList=new javascript.util.ArrayList(this.edgeMap.values())}return this.edgeList};jsts.geomgraph.EdgeEndStar.prototype.getNextCW=function(ee){this.getEdges();var i=this.edgeList.indexOf(ee);var iNextCW=i-1;if(i===0)iNextCW=this.edgeList.length-1;return this.edgeList[iNextCW]};jsts.geomgraph.EdgeEndStar.prototype.computeLabelling=function(geomGraph){this.computeEdgeEndLabels(geomGraph[0].getBoundaryNodeRule());this.propagateSideLabels(0);this.propagateSideLabels(1);var hasDimensionalCollapseEdge=[false,false];for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();for(var geomi=0;geomi<2;geomi++){if(label.isLine(geomi)&&label.getLocation(geomi)===jsts.geom.Location.BOUNDARY)hasDimensionalCollapseEdge[geomi]=true}}for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();for(var geomi=0;geomi<2;geomi++){if(label.isAnyNull(geomi)){var loc=jsts.geom.Location.NONE;if(hasDimensionalCollapseEdge[geomi]){loc=jsts.geom.Location.EXTERIOR}else{var p=e.getCoordinate();loc=this.getLocation(geomi,p,geomGraph)}label.setAllLocationsIfNull(geomi,loc)}}}};jsts.geomgraph.EdgeEndStar.prototype.computeEdgeEndLabels=function(boundaryNodeRule){for(var it=this.iterator();it.hasNext();){var ee=it.next();ee.computeLabel(boundaryNodeRule)}};jsts.geomgraph.EdgeEndStar.prototype.getLocation=function(geomIndex,p,geom){if(this.ptInAreaLocation[geomIndex]===jsts.geom.Location.NONE){this.ptInAreaLocation[geomIndex]=jsts.algorithm.locate.SimplePointInAreaLocator.locate(p,geom[geomIndex].getGeometry())}return this.ptInAreaLocation[geomIndex]};jsts.geomgraph.EdgeEndStar.prototype.isAreaLabelsConsistent=function(geomGraph){this.computeEdgeEndLabels(geomGraph.getBoundaryNodeRule());return this.checkAreaLabelsConsistent(0)};jsts.geomgraph.EdgeEndStar.prototype.checkAreaLabelsConsistent=function(geomIndex){var edges=this.getEdges();if(edges.size()<=0)return true;var lastEdgeIndex=edges.size()-1;var startLabel=edges.get(lastEdgeIndex).getLabel();var startLoc=startLabel.getLocation(geomIndex,jsts.geomgraph.Position.LEFT);jsts.util.Assert.isTrue(startLoc!=jsts.geom.Location.NONE,"Found unlabelled area edge");var currLoc=startLoc;for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();jsts.util.Assert.isTrue(label.isArea(geomIndex),"Found non-area edge");var leftLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT);var rightLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.RIGHT);if(leftLoc===rightLoc){return false}if(rightLoc!==currLoc){return false}currLoc=leftLoc}return true};jsts.geomgraph.EdgeEndStar.prototype.propagateSideLabels=function(geomIndex){var startLoc=jsts.geom.Location.NONE;for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();if(label.isArea(geomIndex)&&label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT)!==jsts.geom.Location.NONE)startLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT)}if(startLoc===jsts.geom.Location.NONE)return;var currLoc=startLoc;for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();if(label.getLocation(geomIndex,jsts.geomgraph.Position.ON)===jsts.geom.Location.NONE)label.setLocation(geomIndex,jsts.geomgraph.Position.ON,currLoc);if(label.isArea(geomIndex)){var leftLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT);var rightLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.RIGHT);if(rightLoc!==jsts.geom.Location.NONE){if(rightLoc!==currLoc)throw new jsts.error.TopologyError("side location conflict",e.getCoordinate());if(leftLoc===jsts.geom.Location.NONE){jsts.util.Assert.shouldNeverReachHere("found single null side (at "+e.getCoordinate()+")")}currLoc=leftLoc}else{jsts.util.Assert.isTrue(label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT)===jsts.geom.Location.NONE,"found single null side");label.setLocation(geomIndex,jsts.geomgraph.Position.RIGHT,currLoc);label.setLocation(geomIndex,jsts.geomgraph.Position.LEFT,currLoc)}}}};jsts.geomgraph.EdgeEndStar.prototype.findIndex=function(eSearch){this.iterator();for(var i=0;i<this.edgeList.size();i++){var e=this.edgeList.get(i);if(e===eSearch)return i}return-1};jsts.operation.relate.EdgeEndBundleStar=function(){jsts.geomgraph.EdgeEndStar.apply(this,arguments)};jsts.operation.relate.EdgeEndBundleStar.prototype=new jsts.geomgraph.EdgeEndStar;jsts.operation.relate.EdgeEndBundleStar.prototype.insert=function(e){var eb=this.edgeMap.get(e);if(eb===null){eb=new jsts.operation.relate.EdgeEndBundle(e);this.insertEdgeEnd(e,eb)}else{eb.insert(e)}};jsts.operation.relate.EdgeEndBundleStar.prototype.updateIM=function(im){for(var it=this.iterator();it.hasNext();){var esb=it.next();esb.updateIM(im)}};jsts.index.ArrayListVisitor=function(){this.items=[]};jsts.index.ArrayListVisitor.prototype.visitItem=function(item){this.items.push(item)};jsts.index.ArrayListVisitor.prototype.getItems=function(){return this.items};jsts.algorithm.distance.DistanceToPoint=function(){};jsts.algorithm.distance.DistanceToPoint.computeDistance=function(geom,pt,ptDist){if(geom instanceof jsts.geom.LineString){jsts.algorithm.distance.DistanceToPoint.computeDistance2(geom,pt,ptDist)}else if(geom instanceof jsts.geom.Polygon){jsts.algorithm.distance.DistanceToPoint.computeDistance4(geom,pt,ptDist)}else if(geom instanceof jsts.geom.GeometryCollection){var gc=geom;for(var i=0;i<gc.getNumGeometries();i++){var g=gc.getGeometryN(i);jsts.algorithm.distance.DistanceToPoint.computeDistance(g,pt,ptDist)}}else{ptDist.setMinimum(geom.getCoordinate(),pt)}};jsts.algorithm.distance.DistanceToPoint.computeDistance2=function(line,pt,ptDist){var tempSegment=new jsts.geom.LineSegment;var coords=line.getCoordinates();for(var i=0;i<coords.length-1;i++){tempSegment.setCoordinates(coords[i],coords[i+1]);var closestPt=tempSegment.closestPoint(pt);ptDist.setMinimum(closestPt,pt)}};jsts.algorithm.distance.DistanceToPoint.computeDistance3=function(segment,pt,ptDist){var closestPt=segment.closestPoint(pt);ptDist.setMinimum(closestPt,pt)};jsts.algorithm.distance.DistanceToPoint.computeDistance4=function(poly,pt,ptDist){jsts.algorithm.distance.DistanceToPoint.computeDistance2(poly.getExteriorRing(),pt,ptDist);for(var i=0;i<poly.getNumInteriorRing();i++){jsts.algorithm.distance.DistanceToPoint.computeDistance2(poly.getInteriorRingN(i),pt,ptDist)}};jsts.index.strtree.ItemBoundable=function(bounds,item){this.bounds=bounds;this.item=item};jsts.index.strtree.ItemBoundable.prototype=new jsts.index.strtree.Boundable;jsts.index.strtree.ItemBoundable.constructor=jsts.index.strtree.ItemBoundable;jsts.index.strtree.ItemBoundable.prototype.bounds=null;jsts.index.strtree.ItemBoundable.prototype.item=null;jsts.index.strtree.ItemBoundable.prototype.getBounds=function(){return this.bounds};jsts.index.strtree.ItemBoundable.prototype.getItem=function(){return this.item};(function(){var ArrayList=javascript.util.ArrayList;var TreeMap=javascript.util.TreeMap;jsts.geomgraph.EdgeList=function(){this.edges=new ArrayList;this.ocaMap=new TreeMap};jsts.geomgraph.EdgeList.prototype.edges=null;jsts.geomgraph.EdgeList.prototype.ocaMap=null;jsts.geomgraph.EdgeList.prototype.add=function(e){this.edges.add(e);var oca=new jsts.noding.OrientedCoordinateArray(e.getCoordinates());this.ocaMap.put(oca,e)};jsts.geomgraph.EdgeList.prototype.addAll=function(edgeColl){for(var i=edgeColl.iterator();i.hasNext();){this.add(i.next())}};jsts.geomgraph.EdgeList.prototype.getEdges=function(){return this.edges};jsts.geomgraph.EdgeList.prototype.findEqualEdge=function(e){var oca=new jsts.noding.OrientedCoordinateArray(e.getCoordinates());var matchEdge=this.ocaMap.get(oca);return matchEdge};jsts.geomgraph.EdgeList.prototype.getEdges=function(){return this.edges};jsts.geomgraph.EdgeList.prototype.iterator=function(){return this.edges.iterator()};jsts.geomgraph.EdgeList.prototype.get=function(i){return this.edges.get(i)};jsts.geomgraph.EdgeList.prototype.findEdgeIndex=function(e){for(var i=0;i<this.edges.size();i++){if(this.edges.get(i).equals(e))return i}return-1}})();jsts.operation.IsSimpleOp=function(geom){this.geom=geom};jsts.operation.IsSimpleOp.prototype.geom=null;jsts.operation.IsSimpleOp.prototype.isClosedEndpointsInInterior=true;jsts.operation.IsSimpleOp.prototype.nonSimpleLocation=null;jsts.operation.IsSimpleOp.prototype.IsSimpleOp=function(geom){this.geom=geom};jsts.operation.IsSimpleOp.prototype.isSimple=function(){this.nonSimpleLocation=null;if(this.geom instanceof jsts.geom.LineString){return this.isSimpleLinearGeometry(this.geom)}if(this.geom instanceof jsts.geom.MultiLineString){return this.isSimpleLinearGeometry(this.geom)}if(this.geom instanceof jsts.geom.MultiPoint){return this.isSimpleMultiPoint(this.geom)}return true};jsts.operation.IsSimpleOp.prototype.isSimpleMultiPoint=function(mp){if(mp.isEmpty())return true;var points=[];for(var i=0;i<mp.getNumGeometries();i++){var pt=mp.getGeometryN(i);var p=pt.getCoordinate();for(var j=0;j<points.length;j++){var point=points[j];if(p.equals2D(point)){this.nonSimpleLocation=p;return false}}points.push(p)}return true};jsts.operation.IsSimpleOp.prototype.isSimpleLinearGeometry=function(geom){if(geom.isEmpty())return true;var graph=new jsts.geomgraph.GeometryGraph(0,geom);var li=new jsts.algorithm.RobustLineIntersector;var si=graph.computeSelfNodes(li,true);if(!si.hasIntersection())return true;if(si.hasProperIntersection()){this.nonSimpleLocation=si.getProperIntersectionPoint();return false}if(this.hasNonEndpointIntersection(graph))return false;if(this.isClosedEndpointsInInterior){if(this.hasClosedEndpointIntersection(graph))return false}return true};jsts.operation.IsSimpleOp.prototype.hasNonEndpointIntersection=function(graph){for(var i=graph.getEdgeIterator();i.hasNext();){var e=i.next();var maxSegmentIndex=e.getMaximumSegmentIndex();for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();if(!ei.isEndPoint(maxSegmentIndex)){this.nonSimpleLocation=ei.getCoordinate();return true}}}return false};jsts.operation.IsSimpleOp.prototype.hasClosedEndpointIntersection=function(graph){var endPoints=new javascript.util.TreeMap;for(var i=graph.getEdgeIterator();i.hasNext();){var e=i.next();var maxSegmentIndex=e.getMaximumSegmentIndex();var isClosed=e.isClosed();var p0=e.getCoordinate(0);this.addEndpoint(endPoints,p0,isClosed);var p1=e.getCoordinate(e.getNumPoints()-1);this.addEndpoint(endPoints,p1,isClosed)}for(var i=endPoints.values().iterator();i.hasNext();){var eiInfo=i.next();if(eiInfo.isClosed&&eiInfo.degree!=2){this.nonSimpleLocation=eiInfo.getCoordinate();return true}}return false};jsts.operation.IsSimpleOp.EndpointInfo=function(pt){this.pt=pt;this.isClosed=false;this.degree=0};jsts.operation.IsSimpleOp.EndpointInfo.prototype.pt=null;jsts.operation.IsSimpleOp.EndpointInfo.prototype.isClosed=null;jsts.operation.IsSimpleOp.EndpointInfo.prototype.degree=null;jsts.operation.IsSimpleOp.EndpointInfo.prototype.getCoordinate=function(){return this.pt};jsts.operation.IsSimpleOp.EndpointInfo.prototype.addEndpoint=function(isClosed){this.degree++;this.isClosed=this.isClosed||isClosed};jsts.operation.IsSimpleOp.prototype.addEndpoint=function(endPoints,p,isClosed){var eiInfo=endPoints.get(p);if(eiInfo===null){eiInfo=new jsts.operation.IsSimpleOp.EndpointInfo(p);endPoints.put(p,eiInfo)}eiInfo.addEndpoint(isClosed)};(function(){var LineStringSnapper=function(){this.snapTolerance=0;this.seg=new jsts.geom.LineSegment;this.allowSnappingToSourceVertices=false;this.isClosed=false;this.srcPts=[];if(arguments[0]instanceof jsts.geom.LineString){this.initFromLine.apply(this,arguments)}else{this.initFromPoints.apply(this,arguments)}};LineStringSnapper.prototype.initFromLine=function(srcLine,snapTolerance){this.initFromPoints(srcLine.getCoordinates(),snapTolerance)};LineStringSnapper.prototype.initFromPoints=function(srcPts,snapTolerance){this.srcPts=srcPts;this.isClosed=this.calcIsClosed(srcPts);this.snapTolerance=snapTolerance};LineStringSnapper.prototype.setAllowSnappingToSourceVertices=function(allowSnappingToSourceVertices){this.allowSnappingToSourceVertices=allowSnappingToSourceVertices};LineStringSnapper.prototype.calcIsClosed=function(pts){if(pts.length<=1){return false}return pts[0].equals(pts[pts.length-1])};LineStringSnapper.prototype.snapTo=function(snapPts){var coordList=new jsts.geom.CoordinateList(this.srcPts);this.snapVertices(coordList,snapPts);this.snapSegments(coordList,snapPts);return coordList.toCoordinateArray()};LineStringSnapper.prototype.snapVertices=function(srcCoords,snapPts){var end=this.isClosed?srcCoords.size()-1:srcCoords.size(),i=0,srcPt,snapVert;for(i;i<end;i++){srcPt=srcCoords.get(i);snapVert=this.findSnapForVertex(srcPt,snapPts);if(snapVert!==null){srcCoords.set(i,new jsts.geom.Coordinate(snapVert));if(i===0&&this.isClosed)srcCoords.set(srcCoords.size()-1,new jsts.geom.Coordinate(snapVert))}}};LineStringSnapper.prototype.findSnapForVertex=function(pt,snapPts){var i=0,il=snapPts.length;for(i=0;i<il;i++){if(pt.equals(snapPts[i])){return null}if(pt.distance(snapPts[i])<this.snapTolerance){return snapPts[i]}}return null};LineStringSnapper.prototype.snapSegments=function(srcCoords,snapPts){if(snapPts.length===0){return}var distinctPtCount=snapPts.length,i,snapPt,index;if(snapPts.length>1&&snapPts[0].equals2D(snapPts[snapPts.length-1])){distinctPtCount=snapPts.length-1}i=0;for(i;i<distinctPtCount;i++){snapPt=snapPts[i];index=this.findSegmentIndexToSnap(snapPt,srcCoords);if(index>=0){srcCoords.add(index+1,new jsts.geom.Coordinate(snapPt),false)}}};LineStringSnapper.prototype.findSegmentIndexToSnap=function(snapPt,srcCoords){var minDist=Number.MAX_VALUE,snapIndex=-1,i=0,dist;for(i;i<srcCoords.size()-1;i++){this.seg.p0=srcCoords.get(i);this.seg.p1=srcCoords.get(i+1);if(this.seg.p0.equals(snapPt)||this.seg.p1.equals(snapPt)){if(this.allowSnappingToSourceVertices){continue}else{return-1}}dist=this.seg.distance(snapPt);if(dist<this.snapTolerance&&dist<minDist){minDist=dist;snapIndex=i}}return snapIndex};jsts.operation.overlay.snap.LineStringSnapper=LineStringSnapper})();(function(){var ArrayList=javascript.util.ArrayList;var GeometryComponentFilter=jsts.geom.GeometryComponentFilter;var LineString=jsts.geom.LineString;var EdgeRing=jsts.operation.polygonize.EdgeRing;var PolygonizeGraph=jsts.operation.polygonize.PolygonizeGraph;var Polygonizer=function(){var that=this;var LineStringAdder=function(){};LineStringAdder.prototype=new GeometryComponentFilter;LineStringAdder.prototype.filter=function(g){if(g instanceof LineString)that.add(g)};this.lineStringAdder=new LineStringAdder;this.dangles=new ArrayList;this.cutEdges=new ArrayList;this.invalidRingLines=new ArrayList};Polygonizer.prototype.lineStringAdder=null;Polygonizer.prototype.graph=null;Polygonizer.prototype.dangles=null;Polygonizer.prototype.cutEdges=null;Polygonizer.prototype.invalidRingLines=null;Polygonizer.prototype.holeList=null;Polygonizer.prototype.shellList=null;Polygonizer.prototype.polyList=null;Polygonizer.prototype.add=function(geomList){if(geomList instanceof jsts.geom.LineString){return this.add3(geomList)}else if(geomList instanceof jsts.geom.Geometry){return this.add2(geomList)}for(var i=geomList.iterator();i.hasNext();){var geometry=i.next();this.add2(geometry)}};Polygonizer.prototype.add2=function(g){g.apply(this.lineStringAdder)};Polygonizer.prototype.add3=function(line){if(this.graph==null)this.graph=new PolygonizeGraph(line.getFactory());this.graph.addEdge(line)};Polygonizer.prototype.getPolygons=function(){this.polygonize();return this.polyList};Polygonizer.prototype.getDangles=function(){this.polygonize();return this.dangles};Polygonizer.prototype.getCutEdges=function(){this.polygonize();return this.cutEdges};Polygonizer.prototype.getInvalidRingLines=function(){this.polygonize();return this.invalidRingLines};Polygonizer.prototype.polygonize=function(){if(this.polyList!=null)return;this.polyList=new ArrayList;if(this.graph==null)return;this.dangles=this.graph.deleteDangles();this.cutEdges=this.graph.deleteCutEdges();var edgeRingList=this.graph.getEdgeRings();var validEdgeRingList=new ArrayList;this.invalidRingLines=new ArrayList;this.findValidRings(edgeRingList,validEdgeRingList,this.invalidRingLines);this.findShellsAndHoles(validEdgeRingList);Polygonizer.assignHolesToShells(this.holeList,this.shellList);this.polyList=new ArrayList;for(var i=this.shellList.iterator();i.hasNext();){var er=i.next();this.polyList.add(er.getPolygon())}};Polygonizer.prototype.findValidRings=function(edgeRingList,validEdgeRingList,invalidRingList){for(var i=edgeRingList.iterator();i.hasNext();){var er=i.next();if(er.isValid())validEdgeRingList.add(er);else invalidRingList.add(er.getLineString())}};Polygonizer.prototype.findShellsAndHoles=function(edgeRingList){this.holeList=new ArrayList;this.shellList=new ArrayList;for(var i=edgeRingList.iterator();i.hasNext();){var er=i.next();if(er.isHole())this.holeList.add(er);else this.shellList.add(er)}};Polygonizer.assignHolesToShells=function(holeList,shellList){for(var i=holeList.iterator();i.hasNext();){var holeER=i.next();Polygonizer.assignHoleToShell(holeER,shellList)}};Polygonizer.assignHoleToShell=function(holeER,shellList){var shell=EdgeRing.findEdgeRingContaining(holeER,shellList);if(shell!=null)shell.addHole(holeER.getRing())};jsts.operation.polygonize.Polygonizer=Polygonizer})();(function(){var ArrayList=javascript.util.ArrayList;var GeometryTransformer=function(){};GeometryTransformer.prototype.inputGeom=null;GeometryTransformer.prototype.factory=null;GeometryTransformer.prototype.pruneEmptyGeometry=true;GeometryTransformer.prototype.preserveGeometryCollectionType=true;GeometryTransformer.prototype.preserveCollections=false;GeometryTransformer.prototype.reserveType=false;GeometryTransformer.prototype.getInputGeometry=function(){return this.inputGeom};GeometryTransformer.prototype.transform=function(inputGeom){this.inputGeom=inputGeom;this.factory=inputGeom.getFactory();if(inputGeom instanceof jsts.geom.Point)return this.transformPoint(inputGeom,null);if(inputGeom instanceof jsts.geom.MultiPoint)return this.transformMultiPoint(inputGeom,null);if(inputGeom instanceof jsts.geom.LinearRing)return this.transformLinearRing(inputGeom,null);if(inputGeom instanceof jsts.geom.LineString)return this.transformLineString(inputGeom,null);if(inputGeom instanceof jsts.geom.MultiLineString)return this.transformMultiLineString(inputGeom,null);if(inputGeom instanceof jsts.geom.Polygon)return this.transformPolygon(inputGeom,null);if(inputGeom instanceof jsts.geom.MultiPolygon)return this.transformMultiPolygon(inputGeom,null);if(inputGeom instanceof jsts.geom.GeometryCollection)return this.transformGeometryCollection(inputGeom,null);throw new jsts.error.IllegalArgumentException("Unknown Geometry subtype: "+inputGeom.getClass().getName())};GeometryTransformer.prototype.createCoordinateSequence=function(coords){return this.factory.getCoordinateSequenceFactory().create(coords)};GeometryTransformer.prototype.copy=function(seq){return seq.clone()};GeometryTransformer.prototype.transformCoordinates=function(coords,parent){return this.copy(coords)};GeometryTransformer.prototype.transformPoint=function(geom,parent){return this.factory.createPoint(this.transformCoordinates(geom.getCoordinateSequence(),geom))};GeometryTransformer.prototype.transformMultiPoint=function(geom,parent){var transGeomList=new ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var transformGeom=this.transformPoint(geom.getGeometryN(i),geom);if(transformGeom==null)continue;if(transformGeom.isEmpty())continue;transGeomList.add(transformGeom)}return this.factory.buildGeometry(transGeomList)};GeometryTransformer.prototype.transformLinearRing=function(geom,parent){var seq=this.transformCoordinates(geom.getCoordinateSequence(),geom);var seqSize=seq.length;if(seqSize>0&&seqSize<4&&!this.preserveType)return this.factory.createLineString(seq);return this.factory.createLinearRing(seq)};GeometryTransformer.prototype.transformLineString=function(geom,parent){return this.factory.createLineString(this.transformCoordinates(geom.getCoordinateSequence(),geom))};GeometryTransformer.prototype.transformMultiLineString=function(geom,parent){var transGeomList=new ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var transformGeom=this.transformLineString(geom.getGeometryN(i),geom);if(transformGeom==null)continue;if(transformGeom.isEmpty())continue;transGeomList.add(transformGeom)}return this.factory.buildGeometry(transGeomList)};GeometryTransformer.prototype.transformPolygon=function(geom,parent){var isAllValidLinearRings=true;var shell=this.transformLinearRing(geom.getExteriorRing(),geom);if(shell==null||!(shell instanceof jsts.geom.LinearRing)||shell.isEmpty())isAllValidLinearRings=false;var holes=new ArrayList;for(var i=0;i<geom.getNumInteriorRing();i++){var hole=this.transformLinearRing(geom.getInteriorRingN(i),geom);if(hole==null||hole.isEmpty()){continue}if(!(hole instanceof jsts.geom.LinearRing))isAllValidLinearRings=false;holes.add(hole)}if(isAllValidLinearRings)return this.factory.createPolygon(shell,holes.toArray());else{var components=new ArrayList;if(shell!=null)components.add(shell);components.addAll(holes);return this.factory.buildGeometry(components)}};GeometryTransformer.prototype.transformMultiPolygon=function(geom,parent){var transGeomList=new ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var transformGeom=this.transformPolygon(geom.getGeometryN(i),geom);if(transformGeom==null)continue;if(transformGeom.isEmpty())continue;transGeomList.add(transformGeom)}return this.factory.buildGeometry(transGeomList)};GeometryTransformer.prototype.transformGeometryCollection=function(geom,parent){var transGeomList=new ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var transformGeom=this.transform(geom.getGeometryN(i));if(transformGeom==null)continue;if(this.pruneEmptyGeometry&&transformGeom.isEmpty())continue;transGeomList.add(transformGeom)}if(this.preserveGeometryCollectionType)return this.factory.createGeometryCollection(GeometryFactory.toGeometryArray(transGeomList));return this.factory.buildGeometry(transGeomList)};jsts.geom.util.GeometryTransformer=GeometryTransformer})();(function(){var LineStringSnapper=jsts.operation.overlay.snap.LineStringSnapper;var PrecisionModel=jsts.geom.PrecisionModel;var TreeSet=javascript.util.TreeSet;var SnapTransformer=function(snapTolerance,snapPts,isSelfSnap){this.snapTolerance=snapTolerance;this.snapPts=snapPts;this.isSelfSnap=isSelfSnap||false};SnapTransformer.prototype=new jsts.geom.util.GeometryTransformer;SnapTransformer.prototype.snapTolerance=null;SnapTransformer.prototype.snapPts=null;SnapTransformer.prototype.isSelfSnap=false;SnapTransformer.prototype.transformCoordinates=function(coords,parent){var srcPts=coords;var newPts=this.snapLine(srcPts,this.snapPts);return newPts};SnapTransformer.prototype.snapLine=function(srcPts,snapPts){var snapper=new LineStringSnapper(srcPts,this.snapTolerance);snapper.setAllowSnappingToSourceVertices(this.isSelfSnap);return snapper.snapTo(snapPts)};var GeometrySnapper=function(srcGeom){this.srcGeom=srcGeom};GeometrySnapper.SNAP_PRECISION_FACTOR=1e-9;GeometrySnapper.computeOverlaySnapTolerance=function(g){if(arguments.length===2){return GeometrySnapper.computeOverlaySnapTolerance2.apply(this,arguments)}var snapTolerance=this.computeSizeBasedSnapTolerance(g);var pm=g.getPrecisionModel();if(pm.getType()==PrecisionModel.FIXED){var fixedSnapTol=1/pm.getScale()*2/1.415;if(fixedSnapTol>snapTolerance)snapTolerance=fixedSnapTol}return snapTolerance};GeometrySnapper.computeSizeBasedSnapTolerance=function(g){var env=g.getEnvelopeInternal();var minDimension=Math.min(env.getHeight(),env.getWidth());var snapTol=minDimension*GeometrySnapper.SNAP_PRECISION_FACTOR;return snapTol};GeometrySnapper.computeOverlaySnapTolerance2=function(g0,g1){return Math.min(this.computeOverlaySnapTolerance(g0),this.computeOverlaySnapTolerance(g1))};GeometrySnapper.snap=function(g0,g1,snapTolerance){var snapGeom=[];var snapper0=new GeometrySnapper(g0);snapGeom[0]=snapper0.snapTo(g1,snapTolerance);var snapper1=new GeometrySnapper(g1);snapGeom[1]=snapper1.snapTo(snapGeom[0],snapTolerance);return snapGeom};GeometrySnapper.snapToSelf=function(g0,snapTolerance,cleanResult){var snapper0=new GeometrySnapper(g0);return snapper0.snapToSelf(snapTolerance,cleanResult)};GeometrySnapper.prototype.srcGeom=null;GeometrySnapper.prototype.snapTo=function(snapGeom,snapTolerance){var snapPts=this.extractTargetCoordinates(snapGeom);
var snapTrans=new SnapTransformer(snapTolerance,snapPts);return snapTrans.transform(this.srcGeom)};GeometrySnapper.prototype.snapToSelf=function(snapTolerance,cleanResult){var snapPts=this.extractTargetCoordinates(srcGeom);var snapTrans=new SnapTransformer(snapTolerance,snapPts,true);var snappedGeom=snapTrans.transform(srcGeom);var result=snappedGeom;if(cleanResult&&result instanceof Polygonal){result=snappedGeom.buffer(0)}return result};GeometrySnapper.prototype.extractTargetCoordinates=function(g){var ptSet=new TreeSet;var pts=g.getCoordinates();for(var i=0;i<pts.length;i++){ptSet.add(pts[i])}return ptSet.toArray()};GeometrySnapper.prototype.computeSnapTolerance=function(ringPts){var minSegLen=this.computeMinimumSegmentLength(ringPts);var snapTol=minSegLen/10;return snapTol};GeometrySnapper.prototype.computeMinimumSegmentLength=function(pts){var minSegLen=Number.MAX_VALUE;for(var i=0;i<pts.length-1;i++){var segLen=pts[i].distance(pts[i+1]);if(segLen<minSegLen)minSegLen=segLen}return minSegLen};jsts.operation.overlay.snap.GeometrySnapper=GeometrySnapper})();jsts.algorithm.PointLocator=function(boundaryRule){this.boundaryRule=boundaryRule?boundaryRule:jsts.algorithm.BoundaryNodeRule.OGC_SFS_BOUNDARY_RULE};jsts.algorithm.PointLocator.prototype.boundaryRule=null;jsts.algorithm.PointLocator.prototype.isIn=null;jsts.algorithm.PointLocator.prototype.numBoundaries=null;jsts.algorithm.PointLocator.prototype.intersects=function(p,geom){return this.locate(p,geom)!==jsts.geom.Location.EXTERIOR};jsts.algorithm.PointLocator.prototype.locate=function(p,geom){if(geom.isEmpty())return jsts.geom.Location.EXTERIOR;if(geom instanceof jsts.geom.Point){return this.locate2(p,geom)}else if(geom instanceof jsts.geom.LineString){return this.locate3(p,geom)}else if(geom instanceof jsts.geom.Polygon){return this.locate4(p,geom)}this.isIn=false;this.numBoundaries=0;this.computeLocation(p,geom);if(this.boundaryRule.isInBoundary(this.numBoundaries))return jsts.geom.Location.BOUNDARY;if(this.numBoundaries>0||this.isIn)return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR};jsts.algorithm.PointLocator.prototype.computeLocation=function(p,geom){if(geom instanceof jsts.geom.Point||geom instanceof jsts.geom.LineString||geom instanceof jsts.geom.Polygon){this.updateLocationInfo(this.locate(p,geom))}else if(geom instanceof jsts.geom.MultiLineString){var ml=geom;for(var i=0;i<ml.getNumGeometries();i++){var l=ml.getGeometryN(i);this.updateLocationInfo(this.locate(p,l))}}else if(geom instanceof jsts.geom.MultiPolygon){var mpoly=geom;for(var i=0;i<mpoly.getNumGeometries();i++){var poly=mpoly.getGeometryN(i);this.updateLocationInfo(this.locate(p,poly))}}else if(geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.GeometryCollection){for(var i=0;i<geom.getNumGeometries();i++){var part=geom.getGeometryN(i);if(part!==geom){this.computeLocation(p,part)}}}};jsts.algorithm.PointLocator.prototype.updateLocationInfo=function(loc){if(loc===jsts.geom.Location.INTERIOR)this.isIn=true;if(loc===jsts.geom.Location.BOUNDARY)this.numBoundaries++};jsts.algorithm.PointLocator.prototype.locate2=function(p,pt){var ptCoord=pt.getCoordinate();if(ptCoord.equals2D(p))return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR};jsts.algorithm.PointLocator.prototype.locate3=function(p,l){if(!l.getEnvelopeInternal().intersects(p))return jsts.geom.Location.EXTERIOR;var pt=l.getCoordinates();if(!l.isClosed()){if(p.equals(pt[0])||p.equals(pt[pt.length-1])){return jsts.geom.Location.BOUNDARY}}if(jsts.algorithm.CGAlgorithms.isOnLine(p,pt))return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR};jsts.algorithm.PointLocator.prototype.locateInPolygonRing=function(p,ring){if(!ring.getEnvelopeInternal().intersects(p))return jsts.geom.Location.EXTERIOR;return jsts.algorithm.CGAlgorithms.locatePointInRing(p,ring.getCoordinates())};jsts.algorithm.PointLocator.prototype.locate4=function(p,poly){if(poly.isEmpty())return jsts.geom.Location.EXTERIOR;var shell=poly.getExteriorRing();var shellLoc=this.locateInPolygonRing(p,shell);if(shellLoc===jsts.geom.Location.EXTERIOR)return jsts.geom.Location.EXTERIOR;if(shellLoc===jsts.geom.Location.BOUNDARY)return jsts.geom.Location.BOUNDARY;for(var i=0;i<poly.getNumInteriorRing();i++){var hole=poly.getInteriorRingN(i);var holeLoc=this.locateInPolygonRing(p,hole);if(holeLoc===jsts.geom.Location.INTERIOR)return jsts.geom.Location.EXTERIOR;if(holeLoc===jsts.geom.Location.BOUNDARY)return jsts.geom.Location.BOUNDARY}return jsts.geom.Location.INTERIOR};(function(){var Location=jsts.geom.Location;var ArrayList=javascript.util.ArrayList;var TreeMap=javascript.util.TreeMap;jsts.geomgraph.NodeMap=function(nodeFactory){this.nodeMap=new TreeMap;this.nodeFact=nodeFactory};jsts.geomgraph.NodeMap.prototype.nodeMap=null;jsts.geomgraph.NodeMap.prototype.nodeFact=null;jsts.geomgraph.NodeMap.prototype.addNode=function(arg){var node,coord;if(arg instanceof jsts.geom.Coordinate){coord=arg;node=this.nodeMap.get(coord);if(node===null){node=this.nodeFact.createNode(coord);this.nodeMap.put(coord,node)}return node}else if(arg instanceof jsts.geomgraph.Node){var n=arg;coord=n.getCoordinate();node=this.nodeMap.get(coord);if(node===null){this.nodeMap.put(coord,n);return n}node.mergeLabel(n);return node}};jsts.geomgraph.NodeMap.prototype.add=function(e){var p=e.getCoordinate();var n=this.addNode(p);n.add(e)};jsts.geomgraph.NodeMap.prototype.find=function(coord){return this.nodeMap.get(coord)};jsts.geomgraph.NodeMap.prototype.values=function(){return this.nodeMap.values()};jsts.geomgraph.NodeMap.prototype.iterator=function(){return this.values().iterator()};jsts.geomgraph.NodeMap.prototype.getBoundaryNodes=function(geomIndex){var bdyNodes=new ArrayList;for(var i=this.iterator();i.hasNext();){var node=i.next();if(node.getLabel().getLocation(geomIndex)===Location.BOUNDARY){bdyNodes.add(node)}}return bdyNodes}})();(function(){var ArrayList=javascript.util.ArrayList;jsts.geomgraph.PlanarGraph=function(nodeFactory){this.edges=new ArrayList;this.edgeEndList=new ArrayList;this.nodes=new jsts.geomgraph.NodeMap(nodeFactory||new jsts.geomgraph.NodeFactory)};jsts.geomgraph.PlanarGraph.prototype.edges=null;jsts.geomgraph.PlanarGraph.prototype.nodes=null;jsts.geomgraph.PlanarGraph.prototype.edgeEndList=null;jsts.geomgraph.PlanarGraph.linkResultDirectedEdges=function(nodes){for(var nodeit=nodes.iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().linkResultDirectedEdges()}};jsts.geomgraph.PlanarGraph.prototype.getEdgeIterator=function(){return this.edges.iterator()};jsts.geomgraph.PlanarGraph.prototype.getEdgeEnds=function(){return this.edgeEndList};jsts.geomgraph.PlanarGraph.prototype.isBoundaryNode=function(geomIndex,coord){var node=this.nodes.find(coord);if(node===null)return false;var label=node.getLabel();if(label!==null&&label.getLocation(geomIndex)===jsts.geom.Location.BOUNDARY)return true;return false};jsts.geomgraph.PlanarGraph.prototype.insertEdge=function(e){this.edges.add(e)};jsts.geomgraph.PlanarGraph.prototype.add=function(e){this.nodes.add(e);this.edgeEndList.add(e)};jsts.geomgraph.PlanarGraph.prototype.getNodeIterator=function(){return this.nodes.iterator()};jsts.geomgraph.PlanarGraph.prototype.getNodes=function(){return this.nodes.values()};jsts.geomgraph.PlanarGraph.prototype.addNode=function(node){return this.nodes.addNode(node)};jsts.geomgraph.PlanarGraph.prototype.addEdges=function(edgesToAdd){for(var it=edgesToAdd.iterator();it.hasNext();){var e=it.next();this.edges.add(e);var de1=new jsts.geomgraph.DirectedEdge(e,true);var de2=new jsts.geomgraph.DirectedEdge(e,false);de1.setSym(de2);de2.setSym(de1);this.add(de1);this.add(de2)}};jsts.geomgraph.PlanarGraph.prototype.linkResultDirectedEdges=function(){for(var nodeit=this.nodes.iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().linkResultDirectedEdges()}};jsts.geomgraph.PlanarGraph.prototype.findEdgeInSameDirection=function(p0,p1){var i=0,il=this.edges.size(),e,eCoord;for(i;i<il;i++){e=this.edges.get(i);eCoord=e.getCoordinates();if(this.matchInSameDirection(p0,p1,eCoord[0],eCoord[1])){return e}if(this.matchInSameDirection(p0,p1,eCoord[eCoord.length-1],eCoord[eCoord.length-2])){return e}}return null};jsts.geomgraph.PlanarGraph.prototype.matchInSameDirection=function(p0,p1,ep0,ep1){if(!p0.equals(ep0)){return false}if(jsts.algorithm.CGAlgorithms.computeOrientation(p0,p1,ep1)===jsts.algorithm.CGAlgorithms.COLLINEAR&&jsts.geomgraph.Quadrant.quadrant(p0,p1)===jsts.geomgraph.Quadrant.quadrant(ep0,ep1)){return true}return false};jsts.geomgraph.PlanarGraph.prototype.findEdgeEnd=function(e){for(var i=this.getEdgeEnds().iterator();i.hasNext();){var ee=i.next();if(ee.getEdge()===e){return ee}}return null}})();jsts.algorithm.LineIntersector=function(){this.inputLines=[[],[]];this.intPt=[null,null];this.pa=this.intPt[0];this.pb=this.intPt[1];this.result=jsts.algorithm.LineIntersector.NO_INTERSECTION};jsts.algorithm.LineIntersector.NO_INTERSECTION=0;jsts.algorithm.LineIntersector.POINT_INTERSECTION=1;jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION=2;jsts.algorithm.LineIntersector.prototype.setPrecisionModel=function(precisionModel){this.precisionModel=precisionModel};jsts.algorithm.LineIntersector.prototype.getEndpoint=function(segmentIndex,ptIndex){return this.inputLines[segmentIndex][ptIndex]};jsts.algorithm.LineIntersector.computeEdgeDistance=function(p,p0,p1){var dx=Math.abs(p1.x-p0.x);var dy=Math.abs(p1.y-p0.y);var dist=-1;if(p.equals(p0)){dist=0}else if(p.equals(p1)){if(dx>dy){dist=dx}else{dist=dy}}else{var pdx=Math.abs(p.x-p0.x);var pdy=Math.abs(p.y-p0.y);if(dx>dy){dist=pdx}else{dist=pdy}if(dist===0&&!p.equals(p0)){dist=Math.max(pdx,pdy)}}if(dist===0&&!p.equals(p0)){throw new jsts.error.IllegalArgumentError("Bad distance calculation")}return dist};jsts.algorithm.LineIntersector.nonRobustComputeEdgeDistance=function(p,p1,p2){var dx=p.x-p1.x;var dy=p.y-p1.y;var dist=Math.sqrt(dx*dx+dy*dy);if(!(dist===0&&!p.equals(p1))){throw new jsts.error.IllegalArgumentError("Invalid distance calculation")}return dist};jsts.algorithm.LineIntersector.prototype.result=null;jsts.algorithm.LineIntersector.prototype.inputLines=null;jsts.algorithm.LineIntersector.prototype.intPt=null;jsts.algorithm.LineIntersector.prototype.intLineIndex=null;jsts.algorithm.LineIntersector.prototype._isProper=null;jsts.algorithm.LineIntersector.prototype.pa=null;jsts.algorithm.LineIntersector.prototype.pb=null;jsts.algorithm.LineIntersector.prototype.precisionModel=null;jsts.algorithm.LineIntersector.prototype.computeIntersection=function(p,p1,p2){throw new jsts.error.AbstractMethodInvocationError};jsts.algorithm.LineIntersector.prototype.isCollinear=function(){return this.result===jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION};jsts.algorithm.LineIntersector.prototype.computeIntersection=function(p1,p2,p3,p4){this.inputLines[0][0]=p1;this.inputLines[0][1]=p2;this.inputLines[1][0]=p3;this.inputLines[1][1]=p4;this.result=this.computeIntersect(p1,p2,p3,p4)};jsts.algorithm.LineIntersector.prototype.computeIntersect=function(p1,p2,q1,q2){throw new jsts.error.AbstractMethodInvocationError};jsts.algorithm.LineIntersector.prototype.isEndPoint=function(){return this.hasIntersection()&&!this._isProper};jsts.algorithm.LineIntersector.prototype.hasIntersection=function(){return this.result!==jsts.algorithm.LineIntersector.NO_INTERSECTION};jsts.algorithm.LineIntersector.prototype.getIntersectionNum=function(){return this.result};jsts.algorithm.LineIntersector.prototype.getIntersection=function(intIndex){return this.intPt[intIndex]};jsts.algorithm.LineIntersector.prototype.computeIntLineIndex=function(){if(this.intLineIndex===null){this.intLineIndex=[[],[]];this.computeIntLineIndex(0);this.computeIntLineIndex(1)}};jsts.algorithm.LineIntersector.prototype.isIntersection=function(pt){var i;for(i=0;i<this.result;i++){if(this.intPt[i].equals2D(pt)){return true}}return false};jsts.algorithm.LineIntersector.prototype.isInteriorIntersection=function(){if(arguments.length===1){return this.isInteriorIntersection2.apply(this,arguments)}if(this.isInteriorIntersection(0)){return true}if(this.isInteriorIntersection(1)){return true}return false};jsts.algorithm.LineIntersector.prototype.isInteriorIntersection2=function(inputLineIndex){var i;for(i=0;i<this.result;i++){if(!(this.intPt[i].equals2D(this.inputLines[inputLineIndex][0])||this.intPt[i].equals2D(this.inputLines[inputLineIndex][1]))){return true}}return false};jsts.algorithm.LineIntersector.prototype.isProper=function(){return this.hasIntersection()&&this._isProper};jsts.algorithm.LineIntersector.prototype.getIntersectionAlongSegment=function(segmentIndex,intIndex){this.computeIntLineIndex();return this.intPt[intLineIndex[segmentIndex][intIndex]]};jsts.algorithm.LineIntersector.prototype.getIndexAlongSegment=function(segmentIndex,intIndex){this.computeIntLineIndex();return this.intLineIndex[segmentIndex][intIndex]};jsts.algorithm.LineIntersector.prototype.computeIntLineIndex=function(segmentIndex){var dist0=this.getEdgeDistance(segmentIndex,0);var dist1=this.getEdgeDistance(segmentIndex,1);if(dist0>dist1){this.intLineIndex[segmentIndex][0]=0;this.intLineIndex[segmentIndex][1]=1}else{this.intLineIndex[segmentIndex][0]=1;this.intLineIndex[segmentIndex][1]=0}};jsts.algorithm.LineIntersector.prototype.getEdgeDistance=function(segmentIndex,intIndex){var dist=jsts.algorithm.LineIntersector.computeEdgeDistance(this.intPt[intIndex],this.inputLines[segmentIndex][0],this.inputLines[segmentIndex][1]);return dist};jsts.algorithm.RobustLineIntersector=function(){jsts.algorithm.RobustLineIntersector.prototype.constructor.call(this)};jsts.algorithm.RobustLineIntersector.prototype=new jsts.algorithm.LineIntersector;jsts.algorithm.RobustLineIntersector.prototype.computeIntersection=function(p,p1,p2){if(arguments.length===4){jsts.algorithm.LineIntersector.prototype.computeIntersection.apply(this,arguments);return}this._isProper=false;if(jsts.geom.Envelope.intersects(p1,p2,p)){if(jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,p)===0&&jsts.algorithm.CGAlgorithms.orientationIndex(p2,p1,p)===0){this._isProper=true;if(p.equals(p1)||p.equals(p2)){this._isProper=false}this.result=jsts.algorithm.LineIntersector.POINT_INTERSECTION;return}}this.result=jsts.algorithm.LineIntersector.NO_INTERSECTION};jsts.algorithm.RobustLineIntersector.prototype.computeIntersect=function(p1,p2,q1,q2){this._isProper=false;if(!jsts.geom.Envelope.intersects(p1,p2,q1,q2)){return jsts.algorithm.LineIntersector.NO_INTERSECTION}var Pq1=jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,q1);var Pq2=jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,q2);if(Pq1>0&&Pq2>0||Pq1<0&&Pq2<0){return jsts.algorithm.LineIntersector.NO_INTERSECTION}var Qp1=jsts.algorithm.CGAlgorithms.orientationIndex(q1,q2,p1);var Qp2=jsts.algorithm.CGAlgorithms.orientationIndex(q1,q2,p2);if(Qp1>0&&Qp2>0||Qp1<0&&Qp2<0){return jsts.algorithm.LineIntersector.NO_INTERSECTION}var collinear=Pq1===0&&Pq2===0&&Qp1===0&&Qp2===0;if(collinear){return this.computeCollinearIntersection(p1,p2,q1,q2)}if(Pq1===0||Pq2===0||Qp1===0||Qp2===0){this._isProper=false;if(p1.equals2D(q1)||p1.equals2D(q2)){this.intPt[0]=p1}else if(p2.equals2D(q1)||p2.equals2D(q2)){this.intPt[0]=p2}else if(Pq1===0){this.intPt[0]=new jsts.geom.Coordinate(q1)}else if(Pq2===0){this.intPt[0]=new jsts.geom.Coordinate(q2)}else if(Qp1===0){this.intPt[0]=new jsts.geom.Coordinate(p1)}else if(Qp2===0){this.intPt[0]=new jsts.geom.Coordinate(p2)}}else{this._isProper=true;this.intPt[0]=this.intersection(p1,p2,q1,q2)}return jsts.algorithm.LineIntersector.POINT_INTERSECTION};jsts.algorithm.RobustLineIntersector.prototype.computeCollinearIntersection=function(p1,p2,q1,q2){var p1q1p2=jsts.geom.Envelope.intersects(p1,p2,q1);var p1q2p2=jsts.geom.Envelope.intersects(p1,p2,q2);var q1p1q2=jsts.geom.Envelope.intersects(q1,q2,p1);var q1p2q2=jsts.geom.Envelope.intersects(q1,q2,p2);if(p1q1p2&&p1q2p2){this.intPt[0]=q1;this.intPt[1]=q2;return jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(q1p1q2&&q1p2q2){this.intPt[0]=p1;this.intPt[1]=p2;return jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(p1q1p2&&q1p1q2){this.intPt[0]=q1;this.intPt[1]=p1;return q1.equals(p1)&&!p1q2p2&&!q1p2q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(p1q1p2&&q1p2q2){this.intPt[0]=q1;this.intPt[1]=p2;return q1.equals(p2)&&!p1q2p2&&!q1p1q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(p1q2p2&&q1p1q2){this.intPt[0]=q2;this.intPt[1]=p1;return q2.equals(p1)&&!p1q1p2&&!q1p2q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(p1q2p2&&q1p2q2){this.intPt[0]=q2;this.intPt[1]=p2;return q2.equals(p2)&&!p1q1p2&&!q1p1q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}return jsts.algorithm.LineIntersector.NO_INTERSECTION};jsts.algorithm.RobustLineIntersector.prototype.intersection=function(p1,p2,q1,q2){var intPt=this.intersectionWithNormalization(p1,p2,q1,q2);if(!this.isInSegmentEnvelopes(intPt)){intPt=jsts.algorithm.CentralEndpointIntersector.getIntersection(p1,p2,q1,q2)}if(this.precisionModel!==null){this.precisionModel.makePrecise(intPt)}return intPt};jsts.algorithm.RobustLineIntersector.prototype.intersectionWithNormalization=function(p1,p2,q1,q2){var n1=new jsts.geom.Coordinate(p1);var n2=new jsts.geom.Coordinate(p2);var n3=new jsts.geom.Coordinate(q1);var n4=new jsts.geom.Coordinate(q2);var normPt=new jsts.geom.Coordinate;this.normalizeToEnvCentre(n1,n2,n3,n4,normPt);var intPt=this.safeHCoordinateIntersection(n1,n2,n3,n4);intPt.x+=normPt.x;intPt.y+=normPt.y;return intPt};jsts.algorithm.RobustLineIntersector.prototype.safeHCoordinateIntersection=function(p1,p2,q1,q2){var intPt=null;try{intPt=jsts.algorithm.HCoordinate.intersection(p1,p2,q1,q2)}catch(e){if(e instanceof jsts.error.NotRepresentableError){intPt=jsts.algorithm.CentralEndpointIntersector.getIntersection(p1,p2,q1,q2)}else{throw e}}return intPt};jsts.algorithm.RobustLineIntersector.prototype.normalizeToMinimum=function(n1,n2,n3,n4,normPt){normPt.x=this.smallestInAbsValue(n1.x,n2.x,n3.x,n4.x);normPt.y=this.smallestInAbsValue(n1.y,n2.y,n3.y,n4.y);n1.x-=normPt.x;n1.y-=normPt.y;n2.x-=normPt.x;n2.y-=normPt.y;n3.x-=normPt.x;n3.y-=normPt.y;n4.x-=normPt.x;n4.y-=normPt.y};jsts.algorithm.RobustLineIntersector.prototype.normalizeToEnvCentre=function(n00,n01,n10,n11,normPt){var minX0=n00.x<n01.x?n00.x:n01.x;var minY0=n00.y<n01.y?n00.y:n01.y;var maxX0=n00.x>n01.x?n00.x:n01.x;var maxY0=n00.y>n01.y?n00.y:n01.y;var minX1=n10.x<n11.x?n10.x:n11.x;var minY1=n10.y<n11.y?n10.y:n11.y;var maxX1=n10.x>n11.x?n10.x:n11.x;var maxY1=n10.y>n11.y?n10.y:n11.y;var intMinX=minX0>minX1?minX0:minX1;var intMaxX=maxX0<maxX1?maxX0:maxX1;var intMinY=minY0>minY1?minY0:minY1;var intMaxY=maxY0<maxY1?maxY0:maxY1;var intMidX=(intMinX+intMaxX)/2;var intMidY=(intMinY+intMaxY)/2;normPt.x=intMidX;normPt.y=intMidY;n00.x-=normPt.x;n00.y-=normPt.y;n01.x-=normPt.x;n01.y-=normPt.y;n10.x-=normPt.x;n10.y-=normPt.y;n11.x-=normPt.x;n11.y-=normPt.y};jsts.algorithm.RobustLineIntersector.prototype.smallestInAbsValue=function(x1,x2,x3,x4){var x=x1;var xabs=Math.abs(x);if(Math.abs(x2)<xabs){x=x2;xabs=Math.abs(x2)}if(Math.abs(x3)<xabs){x=x3;xabs=Math.abs(x3)}if(Math.abs(x4)<xabs){x=x4}return x};jsts.algorithm.RobustLineIntersector.prototype.isInSegmentEnvelopes=function(intPt){var env0=new jsts.geom.Envelope(this.inputLines[0][0],this.inputLines[0][1]);var env1=new jsts.geom.Envelope(this.inputLines[1][0],this.inputLines[1][1]);return env0.contains(intPt)&&env1.contains(intPt)};jsts.noding.SegmentIntersector=function(){};jsts.noding.SegmentIntersector.prototype.processIntersections=jsts.abstractFunc;jsts.noding.SegmentIntersector.prototype.isDone=jsts.abstractFunc;(function(){var SegmentIntersector=jsts.noding.SegmentIntersector;var ArrayList=javascript.util.ArrayList;jsts.noding.InteriorIntersectionFinder=function(li){this.li=li;this.intersections=new ArrayList;this.interiorIntersection=null};jsts.noding.InteriorIntersectionFinder.prototype=new SegmentIntersector;jsts.noding.InteriorIntersectionFinder.constructor=jsts.noding.InteriorIntersectionFinder;jsts.noding.InteriorIntersectionFinder.prototype.findAllIntersections=false;jsts.noding.InteriorIntersectionFinder.prototype.isCheckEndSegmentsOnly=false;jsts.noding.InteriorIntersectionFinder.prototype.li=null;jsts.noding.InteriorIntersectionFinder.prototype.interiorIntersection=null;jsts.noding.InteriorIntersectionFinder.prototype.intSegments=null;jsts.noding.InteriorIntersectionFinder.prototype.intersections=null;jsts.noding.InteriorIntersectionFinder.prototype.setFindAllIntersections=function(findAllIntersections){this.findAllIntersections=findAllIntersections};jsts.noding.InteriorIntersectionFinder.prototype.getIntersections=function(){return intersections};jsts.noding.InteriorIntersectionFinder.prototype.setCheckEndSegmentsOnly=function(isCheckEndSegmentsOnly){this.isCheckEndSegmentsOnly=isCheckEndSegmentsOnly};jsts.noding.InteriorIntersectionFinder.prototype.hasIntersection=function(){return this.interiorIntersection!=null};jsts.noding.InteriorIntersectionFinder.prototype.getInteriorIntersection=function(){return this.interiorIntersection};jsts.noding.InteriorIntersectionFinder.prototype.getIntersectionSegments=function(){return this.intSegments};jsts.noding.InteriorIntersectionFinder.prototype.processIntersections=function(e0,segIndex0,e1,segIndex1){if(this.hasIntersection())return;if(e0==e1&&segIndex0==segIndex1)return;if(this.isCheckEndSegmentsOnly){var isEndSegPresent=this.isEndSegment(e0,segIndex0)||isEndSegment(e1,segIndex1);if(!isEndSegPresent)return}var p00=e0.getCoordinates()[segIndex0];var p01=e0.getCoordinates()[segIndex0+1];var p10=e1.getCoordinates()[segIndex1];var p11=e1.getCoordinates()[segIndex1+1];this.li.computeIntersection(p00,p01,p10,p11);if(this.li.hasIntersection()){if(this.li.isInteriorIntersection()){this.intSegments=[];this.intSegments[0]=p00;this.intSegments[1]=p01;this.intSegments[2]=p10;this.intSegments[3]=p11;this.interiorIntersection=this.li.getIntersection(0);this.intersections.add(this.interiorIntersection)}}};jsts.noding.InteriorIntersectionFinder.prototype.isEndSegment=function(segStr,index){if(index==0)return true;if(index>=segStr.size()-2)return true;return false};jsts.noding.InteriorIntersectionFinder.prototype.isDone=function(){if(this.findAllIntersections)return false;return this.interiorIntersection!=null}})();(function(){var RobustLineIntersector=jsts.algorithm.RobustLineIntersector;var InteriorIntersectionFinder=jsts.noding.InteriorIntersectionFinder;var MCIndexNoder=jsts.noding.MCIndexNoder;jsts.noding.FastNodingValidator=function(segStrings){this.li=new RobustLineIntersector;this.segStrings=segStrings};jsts.noding.FastNodingValidator.prototype.li=null;jsts.noding.FastNodingValidator.prototype.segStrings=null;jsts.noding.FastNodingValidator.prototype.findAllIntersections=false;jsts.noding.FastNodingValidator.prototype.segInt=null;jsts.noding.FastNodingValidator.prototype._isValid=true;jsts.noding.FastNodingValidator.prototype.setFindAllIntersections=function(findAllIntersections){this.findAllIntersections=findAllIntersections};jsts.noding.FastNodingValidator.prototype.getIntersections=function(){return segInt.getIntersections()};jsts.noding.FastNodingValidator.prototype.isValid=function(){this.execute();return this._isValid};jsts.noding.FastNodingValidator.prototype.getErrorMessage=function(){if(this._isValid)return"no intersections found";var intSegs=this.segInt.getIntersectionSegments();return"found non-noded intersection between "+jsts.io.WKTWriter.toLineString(intSegs[0],intSegs[1])+" and "+jsts.io.WKTWriter.toLineString(intSegs[2],intSegs[3])};jsts.noding.FastNodingValidator.prototype.checkValid=function(){this.execute();if(!this._isValid)throw new jsts.error.TopologyError(this.getErrorMessage(),this.segInt.getInteriorIntersection())};jsts.noding.FastNodingValidator.prototype.execute=function(){if(this.segInt!=null)return;this.checkInteriorIntersections()};jsts.noding.FastNodingValidator.prototype.checkInteriorIntersections=function(){this._isValid=true;this.segInt=new InteriorIntersectionFinder(this.li);this.segInt.setFindAllIntersections(this.findAllIntersections);var noder=new MCIndexNoder;noder.setSegmentIntersector(this.segInt);noder.computeNodes(this.segStrings);if(this.segInt.hasIntersection()){this._isValid=false;return}}})();(function(){jsts.noding.BasicSegmentString=function(pts,data){this.pts=pts;this.data=data};jsts.noding.BasicSegmentString.prototype=new jsts.noding.SegmentString;jsts.noding.BasicSegmentString.prototype.pts=null;jsts.noding.BasicSegmentString.prototype.data=null;jsts.noding.BasicSegmentString.prototype.getData=function(){return this.data};jsts.noding.BasicSegmentString.prototype.setData=function(data){this.data=data};jsts.noding.BasicSegmentString.prototype.size=function(){return this.pts.length};jsts.noding.BasicSegmentString.prototype.getCoordinate=function(i){return this.pts[i]};jsts.noding.BasicSegmentString.prototype.getCoordinates=function(){return this.pts};jsts.noding.BasicSegmentString.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1])};jsts.noding.BasicSegmentString.prototype.getSegmentOctant=function(index){if(index==this.pts.length-1)return-1;return jsts.noding.Octant.octant(this.getCoordinate(index),this.getCoordinate(index+1))}})();(function(){var FastNodingValidator=jsts.noding.FastNodingValidator;var BasicSegmentString=jsts.noding.BasicSegmentString;var ArrayList=javascript.util.ArrayList;jsts.geomgraph.EdgeNodingValidator=function(edges){this.nv=new FastNodingValidator(jsts.geomgraph.EdgeNodingValidator.toSegmentStrings(edges))};jsts.geomgraph.EdgeNodingValidator.checkValid=function(edges){var validator=new jsts.geomgraph.EdgeNodingValidator(edges);validator.checkValid()};jsts.geomgraph.EdgeNodingValidator.toSegmentStrings=function(edges){var segStrings=new ArrayList;for(var i=edges.iterator();i.hasNext();){var e=i.next();segStrings.add(new BasicSegmentString(e.getCoordinates(),e))}return segStrings};jsts.geomgraph.EdgeNodingValidator.prototype.nv=null;jsts.geomgraph.EdgeNodingValidator.prototype.checkValid=function(){this.nv.checkValid()}})();jsts.operation.GeometryGraphOperation=function(g0,g1,boundaryNodeRule){this.li=new jsts.algorithm.RobustLineIntersector;this.arg=[];if(g0===undefined){return}if(g1===undefined){this.setComputationPrecision(g0.getPrecisionModel());this.arg[0]=new jsts.geomgraph.GeometryGraph(0,g0);return}boundaryNodeRule=boundaryNodeRule||jsts.algorithm.BoundaryNodeRule.OGC_SFS_BOUNDARY_RULE;if(g0.getPrecisionModel().compareTo(g1.getPrecisionModel())>=0)this.setComputationPrecision(g0.getPrecisionModel());else this.setComputationPrecision(g1.getPrecisionModel());this.arg[0]=new jsts.geomgraph.GeometryGraph(0,g0,boundaryNodeRule);this.arg[1]=new jsts.geomgraph.GeometryGraph(1,g1,boundaryNodeRule)};jsts.operation.GeometryGraphOperation.prototype.li=null;jsts.operation.GeometryGraphOperation.prototype.resultPrecisionModel=null;jsts.operation.GeometryGraphOperation.prototype.arg=null;jsts.operation.GeometryGraphOperation.prototype.getArgGeometry=function(i){return arg[i].getGeometry()};jsts.operation.GeometryGraphOperation.prototype.setComputationPrecision=function(pm){this.resultPrecisionModel=pm;this.li.setPrecisionModel(this.resultPrecisionModel)};jsts.operation.overlay.OverlayNodeFactory=function(){};jsts.operation.overlay.OverlayNodeFactory.prototype=new jsts.geomgraph.NodeFactory;jsts.operation.overlay.OverlayNodeFactory.constructor=jsts.operation.overlay.OverlayNodeFactory;jsts.operation.overlay.OverlayNodeFactory.prototype.createNode=function(coord){return new jsts.geomgraph.Node(coord,new jsts.geomgraph.DirectedEdgeStar)};jsts.operation.overlay.PolygonBuilder=function(geometryFactory){this.shellList=[];this.geometryFactory=geometryFactory};jsts.operation.overlay.PolygonBuilder.prototype.geometryFactory=null;jsts.operation.overlay.PolygonBuilder.prototype.shellList=null;jsts.operation.overlay.PolygonBuilder.prototype.add=function(graph){if(arguments.length===2){this.add2.apply(this,arguments);return}this.add2(graph.getEdgeEnds(),graph.getNodes())};jsts.operation.overlay.PolygonBuilder.prototype.add2=function(dirEdges,nodes){jsts.geomgraph.PlanarGraph.linkResultDirectedEdges(nodes);var maxEdgeRings=this.buildMaximalEdgeRings(dirEdges);var freeHoleList=[];var edgeRings=this.buildMinimalEdgeRings(maxEdgeRings,this.shellList,freeHoleList);this.sortShellsAndHoles(edgeRings,this.shellList,freeHoleList);this.placeFreeHoles(this.shellList,freeHoleList)};jsts.operation.overlay.PolygonBuilder.prototype.getPolygons=function(){var resultPolyList=this.computePolygons(this.shellList);return resultPolyList};jsts.operation.overlay.PolygonBuilder.prototype.buildMaximalEdgeRings=function(dirEdges){var maxEdgeRings=[];for(var it=dirEdges.iterator();it.hasNext();){var de=it.next();if(de.isInResult()&&de.getLabel().isArea()){if(de.getEdgeRing()==null){var er=new jsts.operation.overlay.MaximalEdgeRing(de,this.geometryFactory);maxEdgeRings.push(er);er.setInResult()}}}return maxEdgeRings};jsts.operation.overlay.PolygonBuilder.prototype.buildMinimalEdgeRings=function(maxEdgeRings,shellList,freeHoleList){var edgeRings=[];for(var i=0;i<maxEdgeRings.length;i++){var er=maxEdgeRings[i];if(er.getMaxNodeDegree()>2){er.linkDirectedEdgesForMinimalEdgeRings();var minEdgeRings=er.buildMinimalRings();var shell=this.findShell(minEdgeRings);if(shell!==null){this.placePolygonHoles(shell,minEdgeRings);shellList.push(shell)}else{freeHoleList=freeHoleList.concat(minEdgeRings)}}else{edgeRings.push(er)}}return edgeRings};jsts.operation.overlay.PolygonBuilder.prototype.findShell=function(minEdgeRings){var shellCount=0;var shell=null;for(var i=0;i<minEdgeRings.length;i++){var er=minEdgeRings[i];if(!er.isHole()){shell=er;shellCount++}}jsts.util.Assert.isTrue(shellCount<=1,"found two shells in MinimalEdgeRing list");return shell};jsts.operation.overlay.PolygonBuilder.prototype.placePolygonHoles=function(shell,minEdgeRings){for(var i=0;i<minEdgeRings.length;i++){var er=minEdgeRings[i];if(er.isHole()){er.setShell(shell)}}};jsts.operation.overlay.PolygonBuilder.prototype.sortShellsAndHoles=function(edgeRings,shellList,freeHoleList){for(var i=0;i<edgeRings.length;i++){var er=edgeRings[i];if(er.isHole()){freeHoleList.push(er)}else{shellList.push(er)}}};jsts.operation.overlay.PolygonBuilder.prototype.placeFreeHoles=function(shellList,freeHoleList){for(var i=0;i<freeHoleList.length;i++){var hole=freeHoleList[i];if(hole.getShell()==null){var shell=this.findEdgeRingContaining(hole,shellList);if(shell===null)throw new jsts.error.TopologyError("unable to assign hole to a shell",hole.getCoordinate(0));hole.setShell(shell)}}};jsts.operation.overlay.PolygonBuilder.prototype.findEdgeRingContaining=function(testEr,shellList){var testRing=testEr.getLinearRing();var testEnv=testRing.getEnvelopeInternal();var testPt=testRing.getCoordinateN(0);var minShell=null;var minEnv=null;for(var i=0;i<shellList.length;i++){var tryShell=shellList[i];var tryRing=tryShell.getLinearRing();var tryEnv=tryRing.getEnvelopeInternal();if(minShell!==null)minEnv=minShell.getLinearRing().getEnvelopeInternal();var isContained=false;if(tryEnv.contains(testEnv)&&jsts.algorithm.CGAlgorithms.isPointInRing(testPt,tryRing.getCoordinates()))isContained=true;if(isContained){if(minShell==null||minEnv.contains(tryEnv)){minShell=tryShell}}}return minShell};jsts.operation.overlay.PolygonBuilder.prototype.computePolygons=function(shellList){var resultPolyList=new javascript.util.ArrayList;for(var i=0;i<shellList.length;i++){var er=shellList[i];var poly=er.toPolygon(this.geometryFactory);resultPolyList.add(poly)}return resultPolyList};jsts.operation.overlay.PolygonBuilder.prototype.containsPoint=function(p){for(var i=0;i<this.shellList.length;i++){var er=this.shellList[i];
if(er.containsPoint(p))return true}return false};(function(){var Assert=jsts.util.Assert;var ArrayList=javascript.util.ArrayList;var LineBuilder=function(op,geometryFactory,ptLocator){this.lineEdgesList=new ArrayList;this.resultLineList=new ArrayList;this.op=op;this.geometryFactory=geometryFactory;this.ptLocator=ptLocator};LineBuilder.prototype.op=null;LineBuilder.prototype.geometryFactory=null;LineBuilder.prototype.ptLocator=null;LineBuilder.prototype.lineEdgesList=null;LineBuilder.prototype.resultLineList=null;LineBuilder.prototype.build=function(opCode){this.findCoveredLineEdges();this.collectLines(opCode);this.buildLines(opCode);return this.resultLineList};LineBuilder.prototype.findCoveredLineEdges=function(){for(var nodeit=this.op.getGraph().getNodes().iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().findCoveredLineEdges()}for(var it=this.op.getGraph().getEdgeEnds().iterator();it.hasNext();){var de=it.next();var e=de.getEdge();if(de.isLineEdge()&&!e.isCoveredSet()){var isCovered=this.op.isCoveredByA(de.getCoordinate());e.setCovered(isCovered)}}};LineBuilder.prototype.collectLines=function(opCode){for(var it=this.op.getGraph().getEdgeEnds().iterator();it.hasNext();){var de=it.next();this.collectLineEdge(de,opCode,this.lineEdgesList);this.collectBoundaryTouchEdge(de,opCode,this.lineEdgesList)}};LineBuilder.prototype.collectLineEdge=function(de,opCode,edges){var label=de.getLabel();var e=de.getEdge();if(de.isLineEdge()){if(!de.isVisited()&&jsts.operation.overlay.OverlayOp.isResultOfOp(label,opCode)&&!e.isCovered()){edges.add(e);de.setVisitedEdge(true)}}};LineBuilder.prototype.collectBoundaryTouchEdge=function(de,opCode,edges){var label=de.getLabel();if(de.isLineEdge())return;if(de.isVisited())return;if(de.isInteriorAreaEdge())return;if(de.getEdge().isInResult())return;Assert.isTrue(!(de.isInResult()||de.getSym().isInResult())||!de.getEdge().isInResult());if(jsts.operation.overlay.OverlayOp.isResultOfOp(label,opCode)&&opCode===jsts.operation.overlay.OverlayOp.INTERSECTION){edges.add(de.getEdge());de.setVisitedEdge(true)}};LineBuilder.prototype.buildLines=function(opCode){for(var it=this.lineEdgesList.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();var line=this.geometryFactory.createLineString(e.getCoordinates());this.resultLineList.add(line);e.setInResult(true)}};LineBuilder.prototype.labelIsolatedLines=function(edgesList){for(var it=edgesList.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();if(e.isIsolated()){if(label.isNull(0))this.labelIsolatedLine(e,0);else this.labelIsolatedLine(e,1)}}};LineBuilder.prototype.labelIsolatedLine=function(e,targetIndex){var loc=ptLocator.locate(e.getCoordinate(),op.getArgGeometry(targetIndex));e.getLabel().setLocation(targetIndex,loc)};jsts.operation.overlay.LineBuilder=LineBuilder})();(function(){var ArrayList=javascript.util.ArrayList;var PointBuilder=function(op,geometryFactory,ptLocator){this.resultPointList=new ArrayList;this.op=op;this.geometryFactory=geometryFactory};PointBuilder.prototype.op=null;PointBuilder.prototype.geometryFactory=null;PointBuilder.prototype.resultPointList=null;PointBuilder.prototype.build=function(opCode){this.extractNonCoveredResultNodes(opCode);return this.resultPointList};PointBuilder.prototype.extractNonCoveredResultNodes=function(opCode){for(var nodeit=this.op.getGraph().getNodes().iterator();nodeit.hasNext();){var n=nodeit.next();if(n.isInResult())continue;if(n.isIncidentEdgeInResult())continue;if(n.getEdges().getDegree()===0||opCode===jsts.operation.overlay.OverlayOp.INTERSECTION){var label=n.getLabel();if(jsts.operation.overlay.OverlayOp.isResultOfOp(label,opCode)){this.filterCoveredNodeToPoint(n)}}}};PointBuilder.prototype.filterCoveredNodeToPoint=function(n){var coord=n.getCoordinate();if(!this.op.isCoveredByLA(coord)){var pt=this.geometryFactory.createPoint(coord);this.resultPointList.add(pt)}};jsts.operation.overlay.PointBuilder=PointBuilder})();(function(){var PointLocator=jsts.algorithm.PointLocator;var Location=jsts.geom.Location;var EdgeList=jsts.geomgraph.EdgeList;var Label=jsts.geomgraph.Label;var PlanarGraph=jsts.geomgraph.PlanarGraph;var Position=jsts.geomgraph.Position;var EdgeNodingValidator=jsts.geomgraph.EdgeNodingValidator;var GeometryGraphOperation=jsts.operation.GeometryGraphOperation;var OverlayNodeFactory=jsts.operation.overlay.OverlayNodeFactory;var PolygonBuilder=jsts.operation.overlay.PolygonBuilder;var LineBuilder=jsts.operation.overlay.LineBuilder;var PointBuilder=jsts.operation.overlay.PointBuilder;var Assert=jsts.util.Assert;var ArrayList=javascript.util.ArrayList;jsts.operation.overlay.OverlayOp=function(g0,g1){this.ptLocator=new PointLocator;this.edgeList=new EdgeList;this.resultPolyList=new ArrayList;this.resultLineList=new ArrayList;this.resultPointList=new ArrayList;GeometryGraphOperation.call(this,g0,g1);this.graph=new PlanarGraph(new OverlayNodeFactory);this.geomFact=g0.getFactory()};jsts.operation.overlay.OverlayOp.prototype=new GeometryGraphOperation;jsts.operation.overlay.OverlayOp.constructor=jsts.operation.overlay.OverlayOp;jsts.operation.overlay.OverlayOp.INTERSECTION=1;jsts.operation.overlay.OverlayOp.UNION=2;jsts.operation.overlay.OverlayOp.DIFFERENCE=3;jsts.operation.overlay.OverlayOp.SYMDIFFERENCE=4;jsts.operation.overlay.OverlayOp.overlayOp=function(geom0,geom1,opCode){var gov=new jsts.operation.overlay.OverlayOp(geom0,geom1);var geomOv=gov.getResultGeometry(opCode);return geomOv};jsts.operation.overlay.OverlayOp.isResultOfOp=function(label,opCode){if(arguments.length===3){return jsts.operation.overlay.OverlayOp.isResultOfOp2.apply(this,arguments)}var loc0=label.getLocation(0);var loc1=label.getLocation(1);return jsts.operation.overlay.OverlayOp.isResultOfOp2(loc0,loc1,opCode)};jsts.operation.overlay.OverlayOp.isResultOfOp2=function(loc0,loc1,opCode){if(loc0==Location.BOUNDARY)loc0=Location.INTERIOR;if(loc1==Location.BOUNDARY)loc1=Location.INTERIOR;switch(opCode){case jsts.operation.overlay.OverlayOp.INTERSECTION:return loc0==Location.INTERIOR&&loc1==Location.INTERIOR;case jsts.operation.overlay.OverlayOp.UNION:return loc0==Location.INTERIOR||loc1==Location.INTERIOR;case jsts.operation.overlay.OverlayOp.DIFFERENCE:return loc0==Location.INTERIOR&&loc1!=Location.INTERIOR;case jsts.operation.overlay.OverlayOp.SYMDIFFERENCE:return loc0==Location.INTERIOR&&loc1!=Location.INTERIOR||loc0!=Location.INTERIOR&&loc1==Location.INTERIOR}return false};jsts.operation.overlay.OverlayOp.prototype.ptLocator=null;jsts.operation.overlay.OverlayOp.prototype.geomFact=null;jsts.operation.overlay.OverlayOp.prototype.resultGeom=null;jsts.operation.overlay.OverlayOp.prototype.graph=null;jsts.operation.overlay.OverlayOp.prototype.edgeList=null;jsts.operation.overlay.OverlayOp.prototype.resultPolyList=null;jsts.operation.overlay.OverlayOp.prototype.resultLineList=null;jsts.operation.overlay.OverlayOp.prototype.resultPointList=null;jsts.operation.overlay.OverlayOp.prototype.getResultGeometry=function(funcCode){this.computeOverlay(funcCode);return this.resultGeom};jsts.operation.overlay.OverlayOp.prototype.getGraph=function(){return this.graph};jsts.operation.overlay.OverlayOp.prototype.computeOverlay=function(opCode){this.copyPoints(0);this.copyPoints(1);this.arg[0].computeSelfNodes(this.li,false);this.arg[1].computeSelfNodes(this.li,false);this.arg[0].computeEdgeIntersections(this.arg[1],this.li,true);var baseSplitEdges=new ArrayList;this.arg[0].computeSplitEdges(baseSplitEdges);this.arg[1].computeSplitEdges(baseSplitEdges);var splitEdges=baseSplitEdges;this.insertUniqueEdges(baseSplitEdges);this.computeLabelsFromDepths();this.replaceCollapsedEdges();EdgeNodingValidator.checkValid(this.edgeList.getEdges());this.graph.addEdges(this.edgeList.getEdges());this.computeLabelling();this.labelIncompleteNodes();this.findResultAreaEdges(opCode);this.cancelDuplicateResultEdges();var polyBuilder=new PolygonBuilder(this.geomFact);polyBuilder.add(this.graph);this.resultPolyList=polyBuilder.getPolygons();var lineBuilder=new LineBuilder(this,this.geomFact,this.ptLocator);this.resultLineList=lineBuilder.build(opCode);var pointBuilder=new PointBuilder(this,this.geomFact,this.ptLocator);this.resultPointList=pointBuilder.build(opCode);this.resultGeom=this.computeGeometry(this.resultPointList,this.resultLineList,this.resultPolyList,opCode)};jsts.operation.overlay.OverlayOp.prototype.insertUniqueEdges=function(edges){for(var i=edges.iterator();i.hasNext();){var e=i.next();this.insertUniqueEdge(e)}};jsts.operation.overlay.OverlayOp.prototype.insertUniqueEdge=function(e){var existingEdge=this.edgeList.findEqualEdge(e);if(existingEdge!==null){var existingLabel=existingEdge.getLabel();var labelToMerge=e.getLabel();if(!existingEdge.isPointwiseEqual(e)){labelToMerge=new Label(e.getLabel());labelToMerge.flip()}var depth=existingEdge.getDepth();if(depth.isNull()){depth.add(existingLabel)}depth.add(labelToMerge);existingLabel.merge(labelToMerge)}else{this.edgeList.add(e)}};jsts.operation.overlay.OverlayOp.prototype.computeLabelsFromDepths=function(){for(var it=this.edgeList.iterator();it.hasNext();){var e=it.next();var lbl=e.getLabel();var depth=e.getDepth();if(!depth.isNull()){depth.normalize();for(var i=0;i<2;i++){if(!lbl.isNull(i)&&lbl.isArea()&&!depth.isNull(i)){if(depth.getDelta(i)==0){lbl.toLine(i)}else{Assert.isTrue(!depth.isNull(i,Position.LEFT),"depth of LEFT side has not been initialized");lbl.setLocation(i,Position.LEFT,depth.getLocation(i,Position.LEFT));Assert.isTrue(!depth.isNull(i,Position.RIGHT),"depth of RIGHT side has not been initialized");lbl.setLocation(i,Position.RIGHT,depth.getLocation(i,Position.RIGHT))}}}}}};jsts.operation.overlay.OverlayOp.prototype.replaceCollapsedEdges=function(){var newEdges=new ArrayList;for(var it=this.edgeList.iterator();it.hasNext();){var e=it.next();if(e.isCollapsed()){it.remove();newEdges.add(e.getCollapsedEdge())}}this.edgeList.addAll(newEdges)};jsts.operation.overlay.OverlayOp.prototype.copyPoints=function(argIndex){for(var i=this.arg[argIndex].getNodeIterator();i.hasNext();){var graphNode=i.next();var newNode=this.graph.addNode(graphNode.getCoordinate());newNode.setLabel(argIndex,graphNode.getLabel().getLocation(argIndex))}};jsts.operation.overlay.OverlayOp.prototype.computeLabelling=function(){for(var nodeit=this.graph.getNodes().iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().computeLabelling(this.arg)}this.mergeSymLabels();this.updateNodeLabelling()};jsts.operation.overlay.OverlayOp.prototype.mergeSymLabels=function(){for(var nodeit=this.graph.getNodes().iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().mergeSymLabels()}};jsts.operation.overlay.OverlayOp.prototype.updateNodeLabelling=function(){for(var nodeit=this.graph.getNodes().iterator();nodeit.hasNext();){var node=nodeit.next();var lbl=node.getEdges().getLabel();node.getLabel().merge(lbl)}};jsts.operation.overlay.OverlayOp.prototype.labelIncompleteNodes=function(){var nodeCount=0;for(var ni=this.graph.getNodes().iterator();ni.hasNext();){var n=ni.next();var label=n.getLabel();if(n.isIsolated()){nodeCount++;if(label.isNull(0))this.labelIncompleteNode(n,0);else this.labelIncompleteNode(n,1)}n.getEdges().updateLabelling(label)}};jsts.operation.overlay.OverlayOp.prototype.labelIncompleteNode=function(n,targetIndex){var loc=this.ptLocator.locate(n.getCoordinate(),this.arg[targetIndex].getGeometry());n.getLabel().setLocation(targetIndex,loc)};jsts.operation.overlay.OverlayOp.prototype.findResultAreaEdges=function(opCode){for(var it=this.graph.getEdgeEnds().iterator();it.hasNext();){var de=it.next();var label=de.getLabel();if(label.isArea()&&!de.isInteriorAreaEdge()&&jsts.operation.overlay.OverlayOp.isResultOfOp(label.getLocation(0,Position.RIGHT),label.getLocation(1,Position.RIGHT),opCode)){de.setInResult(true)}}};jsts.operation.overlay.OverlayOp.prototype.cancelDuplicateResultEdges=function(){for(var it=this.graph.getEdgeEnds().iterator();it.hasNext();){var de=it.next();var sym=de.getSym();if(de.isInResult()&&sym.isInResult()){de.setInResult(false);sym.setInResult(false)}}};jsts.operation.overlay.OverlayOp.prototype.isCoveredByLA=function(coord){if(this.isCovered(coord,this.resultLineList))return true;if(this.isCovered(coord,this.resultPolyList))return true;return false};jsts.operation.overlay.OverlayOp.prototype.isCoveredByA=function(coord){if(this.isCovered(coord,this.resultPolyList))return true;return false};jsts.operation.overlay.OverlayOp.prototype.isCovered=function(coord,geomList){for(var it=geomList.iterator();it.hasNext();){var geom=it.next();var loc=this.ptLocator.locate(coord,geom);if(loc!=Location.EXTERIOR)return true}return false};jsts.operation.overlay.OverlayOp.prototype.computeGeometry=function(resultPointList,resultLineList,resultPolyList,opcode){var geomList=new ArrayList;geomList.addAll(resultPointList);geomList.addAll(resultLineList);geomList.addAll(resultPolyList);return this.geomFact.buildGeometry(geomList)};jsts.operation.overlay.OverlayOp.prototype.createEmptyResult=function(opCode){var result=null;switch(resultDimension(opCode,this.arg[0].getGeometry(),this.arg[1].getGeometry())){case-1:result=geomFact.createGeometryCollection();break;case 0:result=geomFact.createPoint(null);break;case 1:result=geomFact.createLineString(null);break;case 2:result=geomFact.createPolygon(null,null);break}return result};jsts.operation.overlay.OverlayOp.prototype.resultDimension=function(opCode,g0,g1){var dim0=g0.getDimension();var dim1=g1.getDimension();var resultDimension=-1;switch(opCode){case jsts.operation.overlay.OverlayOp.INTERSECTION:resultDimension=Math.min(dim0,dim1);break;case jsts.operation.overlay.OverlayOp.UNION:resultDimension=Math.max(dim0,dim1);break;case jsts.operation.overlay.OverlayOp.DIFFERENCE:resultDimension=dim0;break;case jsts.operation.overlay.OverlayOp.SYMDIFFERENCE:resultDimension=Math.max(dim0,dim1);break}return resultDimension}})();(function(){var OverlayOp=jsts.operation.overlay.OverlayOp;var GeometrySnapper=jsts.operation.overlay.snap.GeometrySnapper;var SnapOverlayOp=function(g1,g2){this.geom=[];this.geom[0]=g1;this.geom[1]=g2;this.computeSnapTolerance()};SnapOverlayOp.overlayOp=function(g0,g1,opCode){var op=new SnapOverlayOp(g0,g1);return op.getResultGeometry(opCode)};SnapOverlayOp.intersection=function(g0,g1){return this.overlayOp(g0,g1,OverlayOp.INTERSECTION)};SnapOverlayOp.union=function(g0,g1){return this.overlayOp(g0,g1,OverlayOp.UNION)};SnapOverlayOp.difference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.DIFFERENCE)};SnapOverlayOp.symDifference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.SYMDIFFERENCE)};SnapOverlayOp.prototype.geom=null;SnapOverlayOp.prototype.snapTolerance=null;SnapOverlayOp.prototype.computeSnapTolerance=function(){this.snapTolerance=GeometrySnapper.computeOverlaySnapTolerance(this.geom[0],this.geom[1])};SnapOverlayOp.prototype.getResultGeometry=function(opCode){var prepGeom=this.snap(this.geom);var result=OverlayOp.overlayOp(prepGeom[0],prepGeom[1],opCode);return this.prepareResult(result)};SnapOverlayOp.prototype.selfSnap=function(geom){var snapper0=new GeometrySnapper(geom);var snapGeom=snapper0.snapTo(geom,this.snapTolerance);return snapGeom};SnapOverlayOp.prototype.snap=function(geom){var remGeom=geom;var snapGeom=GeometrySnapper.snap(remGeom[0],remGeom[1],this.snapTolerance);return snapGeom};SnapOverlayOp.prototype.prepareResult=function(geom){return geom};SnapOverlayOp.prototype.cbr=null;SnapOverlayOp.prototype.removeCommonBits=function(geom){this.cbr=new jsts.precision.CommonBitsRemover;this.cbr.add(this.geom[0]);this.cbr.add(this.geom[1]);var remGeom=[];remGeom[0]=cbr.removeCommonBits(this.geom[0].clone());remGeom[1]=cbr.removeCommonBits(this.geom[1].clone());return remGeom};jsts.operation.overlay.snap.SnapOverlayOp=SnapOverlayOp})();jsts.geomgraph.index.EdgeSetIntersector=function(){};jsts.geomgraph.index.EdgeSetIntersector.prototype.computeIntersections=function(edges,si,testAllSegments){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.index.EdgeSetIntersector.prototype.computeIntersections2=function(edges0,edges1,si){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.index.SimpleMCSweepLineIntersector=function(){this.events=[]};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype=new jsts.geomgraph.index.EdgeSetIntersector;jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.events=null;jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.nOverlaps=0;jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.computeIntersections=function(edges,si,testAllSegments){if(si instanceof javascript.util.List){this.computeIntersections2.apply(this,arguments);return}if(testAllSegments){this.addList2(edges,null)}else{this.addList(edges)}this.computeIntersections3(si)};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.computeIntersections2=function(edges0,edges1,si){this.addList2(edges0,edges0);this.addList2(edges1,edges1);this.computeIntersections3(si)};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.add=function(edge,edgeSet){if(edge instanceof javascript.util.List){this.addList.apply(this,arguments);return}var mce=edge.getMonotoneChainEdge();var startIndex=mce.getStartIndexes();for(var i=0;i<startIndex.length-1;i++){var mc=new jsts.geomgraph.index.MonotoneChain(mce,i);var insertEvent=new jsts.geomgraph.index.SweepLineEvent(mce.getMinX(i),mc,edgeSet);this.events.push(insertEvent);this.events.push(new jsts.geomgraph.index.SweepLineEvent(mce.getMaxX(i),insertEvent))}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.addList=function(edges){for(var i=edges.iterator();i.hasNext();){var edge=i.next();this.add(edge,edge)}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.addList2=function(edges,edgeSet){for(var i=edges.iterator();i.hasNext();){var edge=i.next();this.add(edge,edgeSet)}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.prepareEvents=function(){this.events.sort(function(a,b){return a.compareTo(b)});for(var i=0;i<this.events.length;i++){var ev=this.events[i];if(ev.isDelete()){ev.getInsertEvent().setDeleteEventIndex(i)}}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.computeIntersections3=function(si){this.nOverlaps=0;this.prepareEvents();for(var i=0;i<this.events.length;i++){var ev=this.events[i];if(ev.isInsert()){this.processOverlaps(i,ev.getDeleteEventIndex(),ev,si)}}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.processOverlaps=function(start,end,ev0,si){var mc0=ev0.getObject();for(var i=start;i<end;i++){var ev1=this.events[i];if(ev1.isInsert()){var mc1=ev1.getObject();if(!ev0.isSameLabel(ev1)){mc0.computeIntersections(mc1,si);this.nOverlaps++}}}};jsts.algorithm.locate.SimplePointInAreaLocator=function(geom){this.geom=geom};jsts.algorithm.locate.SimplePointInAreaLocator.locate=function(p,geom){if(geom.isEmpty())return jsts.geom.Location.EXTERIOR;if(jsts.algorithm.locate.SimplePointInAreaLocator.containsPoint(p,geom))return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR};jsts.algorithm.locate.SimplePointInAreaLocator.containsPoint=function(p,geom){if(geom instanceof jsts.geom.Polygon){return jsts.algorithm.locate.SimplePointInAreaLocator.containsPointInPolygon(p,geom)}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){for(var i=0;i<geom.geometries.length;i++){var g2=geom.geometries[i];if(g2!==geom)if(jsts.algorithm.locate.SimplePointInAreaLocator.containsPoint(p,g2))return true}}return false};jsts.algorithm.locate.SimplePointInAreaLocator.containsPointInPolygon=function(p,poly){if(poly.isEmpty())return false;var shell=poly.getExteriorRing();if(!jsts.algorithm.locate.SimplePointInAreaLocator.isPointInRing(p,shell))return false;for(var i=0;i<poly.getNumInteriorRing();i++){var hole=poly.getInteriorRingN(i);if(jsts.algorithm.locate.SimplePointInAreaLocator.isPointInRing(p,hole))return false}return true};jsts.algorithm.locate.SimplePointInAreaLocator.isPointInRing=function(p,ring){if(!ring.getEnvelopeInternal().intersects(p))return false;return jsts.algorithm.CGAlgorithms.isPointInRing(p,ring.getCoordinates())};jsts.algorithm.locate.SimplePointInAreaLocator.prototype.geom=null;jsts.algorithm.locate.SimplePointInAreaLocator.prototype.locate=function(p){return jsts.algorithm.locate.SimplePointInAreaLocator.locate(p,geom)};(function(){var Location=jsts.geom.Location;var Position=jsts.geomgraph.Position;var EdgeEndStar=jsts.geomgraph.EdgeEndStar;var Assert=jsts.util.Assert;jsts.geomgraph.DirectedEdgeStar=function(){jsts.geomgraph.EdgeEndStar.call(this)};jsts.geomgraph.DirectedEdgeStar.prototype=new EdgeEndStar;jsts.geomgraph.DirectedEdgeStar.constructor=jsts.geomgraph.DirectedEdgeStar;jsts.geomgraph.DirectedEdgeStar.prototype.resultAreaEdgeList=null;jsts.geomgraph.DirectedEdgeStar.prototype.label=null;jsts.geomgraph.DirectedEdgeStar.prototype.insert=function(ee){var de=ee;this.insertEdgeEnd(de,de)};jsts.geomgraph.DirectedEdgeStar.prototype.getLabel=function(){return this.label};jsts.geomgraph.DirectedEdgeStar.prototype.getOutgoingDegree=function(){var degree=0;for(var it=this.iterator();it.hasNext();){var de=it.next();if(de.isInResult())degree++}return degree};jsts.geomgraph.DirectedEdgeStar.prototype.getOutgoingDegree=function(er){var degree=0;for(var it=this.iterator();it.hasNext();){var de=it.next();if(de.getEdgeRing()===er)degree++}return degree};jsts.geomgraph.DirectedEdgeStar.prototype.getRightmostEdge=function(){var edges=this.getEdges();var size=edges.size();if(size<1)return null;var de0=edges.get(0);if(size==1)return de0;var deLast=edges.get(size-1);var quad0=de0.getQuadrant();var quad1=deLast.getQuadrant();if(jsts.geomgraph.Quadrant.isNorthern(quad0)&&jsts.geomgraph.Quadrant.isNorthern(quad1))return de0;else if(!jsts.geomgraph.Quadrant.isNorthern(quad0)&&!jsts.geomgraph.Quadrant.isNorthern(quad1))return deLast;else{var nonHorizontalEdge=null;if(de0.getDy()!=0)return de0;else if(deLast.getDy()!=0)return deLast}Assert.shouldNeverReachHere("found two horizontal edges incident on node");return null};jsts.geomgraph.DirectedEdgeStar.prototype.computeLabelling=function(geom){EdgeEndStar.prototype.computeLabelling.call(this,geom);this.label=new jsts.geomgraph.Label(Location.NONE);for(var it=this.iterator();it.hasNext();){var ee=it.next();var e=ee.getEdge();var eLabel=e.getLabel();for(var i=0;i<2;i++){var eLoc=eLabel.getLocation(i);if(eLoc===Location.INTERIOR||eLoc===Location.BOUNDARY)this.label.setLocation(i,Location.INTERIOR)}}};jsts.geomgraph.DirectedEdgeStar.prototype.mergeSymLabels=function(){for(var it=this.iterator();it.hasNext();){var de=it.next();var label=de.getLabel();label.merge(de.getSym().getLabel())}};jsts.geomgraph.DirectedEdgeStar.prototype.updateLabelling=function(nodeLabel){for(var it=this.iterator();it.hasNext();){var de=it.next();var label=de.getLabel();label.setAllLocationsIfNull(0,nodeLabel.getLocation(0));label.setAllLocationsIfNull(1,nodeLabel.getLocation(1))}};jsts.geomgraph.DirectedEdgeStar.prototype.getResultAreaEdges=function(){if(this.resultAreaEdgeList!==null)return this.resultAreaEdgeList;this.resultAreaEdgeList=new javascript.util.ArrayList;for(var it=this.iterator();it.hasNext();){var de=it.next();if(de.isInResult()||de.getSym().isInResult())this.resultAreaEdgeList.add(de)}return this.resultAreaEdgeList};jsts.geomgraph.DirectedEdgeStar.prototype.SCANNING_FOR_INCOMING=1;jsts.geomgraph.DirectedEdgeStar.prototype.LINKING_TO_OUTGOING=2;jsts.geomgraph.DirectedEdgeStar.prototype.linkResultDirectedEdges=function(){this.getResultAreaEdges();var firstOut=null;var incoming=null;var state=this.SCANNING_FOR_INCOMING;for(var i=0;i<this.resultAreaEdgeList.size();i++){var nextOut=this.resultAreaEdgeList.get(i);var nextIn=nextOut.getSym();if(!nextOut.getLabel().isArea())continue;if(firstOut===null&&nextOut.isInResult())firstOut=nextOut;switch(state){case this.SCANNING_FOR_INCOMING:if(!nextIn.isInResult())continue;incoming=nextIn;state=this.LINKING_TO_OUTGOING;break;case this.LINKING_TO_OUTGOING:if(!nextOut.isInResult())continue;incoming.setNext(nextOut);state=this.SCANNING_FOR_INCOMING;break}}if(state===this.LINKING_TO_OUTGOING){if(firstOut===null)throw new jsts.error.TopologyError("no outgoing dirEdge found",this.getCoordinate());Assert.isTrue(firstOut.isInResult(),"unable to link last incoming dirEdge");incoming.setNext(firstOut)}};jsts.geomgraph.DirectedEdgeStar.prototype.linkMinimalDirectedEdges=function(er){var firstOut=null;var incoming=null;var state=this.SCANNING_FOR_INCOMING;for(var i=this.resultAreaEdgeList.size()-1;i>=0;i--){var nextOut=this.resultAreaEdgeList.get(i);var nextIn=nextOut.getSym();if(firstOut===null&&nextOut.getEdgeRing()===er)firstOut=nextOut;switch(state){case this.SCANNING_FOR_INCOMING:if(nextIn.getEdgeRing()!=er)continue;incoming=nextIn;state=this.LINKING_TO_OUTGOING;break;case this.LINKING_TO_OUTGOING:if(nextOut.getEdgeRing()!==er)continue;incoming.setNextMin(nextOut);state=this.SCANNING_FOR_INCOMING;break}}if(state===this.LINKING_TO_OUTGOING){Assert.isTrue(firstOut!==null,"found null for first outgoing dirEdge");Assert.isTrue(firstOut.getEdgeRing()===er,"unable to link last incoming dirEdge");incoming.setNextMin(firstOut)}};jsts.geomgraph.DirectedEdgeStar.prototype.linkAllDirectedEdges=function(){this.getEdges();var prevOut=null;var firstIn=null;for(var i=this.edgeList.size()-1;i>=0;i--){var nextOut=this.edgeList.get(i);var nextIn=nextOut.getSym();if(firstIn===null)firstIn=nextIn;if(prevOut!==null)nextIn.setNext(prevOut);prevOut=nextOut}firstIn.setNext(prevOut)};jsts.geomgraph.DirectedEdgeStar.prototype.findCoveredLineEdges=function(){var startLoc=Location.NONE;for(var it=this.iterator();it.hasNext();){var nextOut=it.next();var nextIn=nextOut.getSym();if(!nextOut.isLineEdge()){if(nextOut.isInResult()){startLoc=Location.INTERIOR;break}if(nextIn.isInResult()){startLoc=Location.EXTERIOR;break}}}if(startLoc===Location.NONE)return;var currLoc=startLoc;for(var it=this.iterator();it.hasNext();){var nextOut=it.next();var nextIn=nextOut.getSym();if(nextOut.isLineEdge()){nextOut.getEdge().setCovered(currLoc===Location.INTERIOR)}else{if(nextOut.isInResult())currLoc=Location.EXTERIOR;if(nextIn.isInResult())currLoc=Location.INTERIOR}}};jsts.geomgraph.DirectedEdgeStar.prototype.computeDepths=function(de){if(arguments.length===2){this.computeDepths2.apply(this,arguments);return}var edgeIndex=this.findIndex(de);var label=de.getLabel();var startDepth=de.getDepth(Position.LEFT);var targetLastDepth=de.getDepth(Position.RIGHT);var nextDepth=this.computeDepths2(edgeIndex+1,this.edgeList.size(),startDepth);var lastDepth=this.computeDepths2(0,edgeIndex,nextDepth);if(lastDepth!=targetLastDepth)throw new jsts.error.TopologyError("depth mismatch at "+de.getCoordinate())};jsts.geomgraph.DirectedEdgeStar.prototype.computeDepths2=function(startIndex,endIndex,startDepth){var currDepth=startDepth;for(var i=startIndex;i<endIndex;i++){var nextDe=this.edgeList.get(i);var label=nextDe.getLabel();nextDe.setEdgeDepths(Position.RIGHT,currDepth);currDepth=nextDe.getDepth(Position.LEFT)}return currDepth}})();jsts.algorithm.CentroidLine=function(){this.centSum=new jsts.geom.Coordinate};jsts.algorithm.CentroidLine.prototype.centSum=null;jsts.algorithm.CentroidLine.prototype.totalLength=0;jsts.algorithm.CentroidLine.prototype.add=function(geom){if(geom instanceof Array){this.add2.apply(this,arguments);return}if(geom instanceof jsts.geom.LineString){this.add(geom.getCoordinates())}else if(geom instanceof jsts.geom.Polygon){var poly=geom;this.add(poly.getExteriorRing().getCoordinates());for(var i=0;i<poly.getNumInteriorRing();i++){this.add(poly.getInteriorRingN(i).getCoordinates())}}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){var gc=geom;for(var i=0;i<gc.getNumGeometries();i++){this.add(gc.getGeometryN(i))}}};jsts.algorithm.CentroidLine.prototype.getCentroid=function(){var cent=new jsts.geom.Coordinate;cent.x=this.centSum.x/this.totalLength;cent.y=this.centSum.y/this.totalLength;return cent};jsts.algorithm.CentroidLine.prototype.add2=function(pts){for(var i=0;i<pts.length-1;i++){var segmentLen=pts[i].distance(pts[i+1]);this.totalLength+=segmentLen;var midx=(pts[i].x+pts[i+1].x)/2;this.centSum.x+=segmentLen*midx;var midy=(pts[i].y+pts[i+1].y)/2;this.centSum.y+=segmentLen*midy}};jsts.index.IntervalSize=function(){};jsts.index.IntervalSize.MIN_BINARY_EXPONENT=-50;jsts.index.IntervalSize.isZeroWidth=function(min,max){var width=max-min;if(width===0){return true}var maxAbs,scaledInterval,level;maxAbs=Math.max(Math.abs(min),Math.abs(max));scaledInterval=width/maxAbs;level=jsts.index.DoubleBits.exponent(scaledInterval);return level<=jsts.index.IntervalSize.MIN_BINARY_EXPONENT};jsts.geomgraph.index.SimpleEdgeSetIntersector=function(){};jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype=new jsts.geomgraph.index.EdgeSetIntersector;jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype.nOverlaps=0;jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype.computeIntersections=function(edges,si,testAllSegments){if(si instanceof javascript.util.List){this.computeIntersections2.apply(this,arguments);return}this.nOverlaps=0;for(var i0=edges.iterator();i0.hasNext();){var edge0=i0.next();for(var i1=edges.iterator();i1.hasNext();){var edge1=i1.next();if(testAllSegments||edge0!=edge1)this.computeIntersects(edge0,edge1,si)}}};jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype.computeIntersections2=function(edges0,edges1,si){this.nOverlaps=0;for(var i0=edges0.iterator();i0.hasNext();){var edge0=i0.next();for(var i1=edges1.iterator();i1.hasNext();){var edge1=i1.next();this.computeIntersects(edge0,edge1,si)}}};jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype.computeIntersects=function(e0,e1,si){var pts0=e0.getCoordinates();var pts1=e1.getCoordinates();var i0,i1;for(i0=0;i0<pts0.length-1;i0++){for(i1=0;i1<pts1.length-1;i1++){si.addIntersections(e0,i0,e1,i1)}}};jsts.geomgraph.Edge=function(pts,label){this.pts=pts;this.label=label;this.eiList=new jsts.geomgraph.EdgeIntersectionList(this);this.depth=new jsts.geomgraph.Depth};jsts.geomgraph.Edge.prototype=new jsts.geomgraph.GraphComponent;jsts.geomgraph.Edge.constructor=jsts.geomgraph.Edge;jsts.geomgraph.Edge.updateIM=function(label,im){im.setAtLeastIfValid(label.getLocation(0,jsts.geomgraph.Position.ON),label.getLocation(1,jsts.geomgraph.Position.ON),1);if(label.isArea()){im.setAtLeastIfValid(label.getLocation(0,jsts.geomgraph.Position.LEFT),label.getLocation(1,jsts.geomgraph.Position.LEFT),2);im.setAtLeastIfValid(label.getLocation(0,jsts.geomgraph.Position.RIGHT),label.getLocation(1,jsts.geomgraph.Position.RIGHT),2)}};jsts.geomgraph.Edge.prototype.pts=null;jsts.geomgraph.Edge.prototype.env=null;jsts.geomgraph.Edge.prototype.name=null;jsts.geomgraph.Edge.prototype.mce=null;jsts.geomgraph.Edge.prototype._isIsolated=true;jsts.geomgraph.Edge.prototype.depth=null;jsts.geomgraph.Edge.prototype.depthDelta=0;jsts.geomgraph.Edge.prototype.eiList=null;jsts.geomgraph.Edge.prototype.getNumPoints=function(){return this.pts.length};jsts.geomgraph.Edge.prototype.getEnvelope=function(){if(this.env===null){this.env=new jsts.geom.Envelope;for(var i=0;i<this.pts.length;i++){this.env.expandToInclude(pts[i])}}return env};jsts.geomgraph.Edge.prototype.getDepth=function(){return this.depth};jsts.geomgraph.Edge.prototype.getDepthDelta=function(){return this.depthDelta};jsts.geomgraph.Edge.prototype.setDepthDelta=function(depthDelta){this.depthDelta=depthDelta};jsts.geomgraph.Edge.prototype.getCoordinates=function(){return this.pts};jsts.geomgraph.Edge.prototype.getCoordinate=function(i){if(i===undefined){if(this.pts.length>0){return this.pts[0]}else{return null}}return this.pts[i]};jsts.geomgraph.Edge.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1])};jsts.geomgraph.Edge.prototype.setIsolated=function(isIsolated){this._isIsolated=isIsolated
};jsts.geomgraph.Edge.prototype.isIsolated=function(){return this._isIsolated};jsts.geomgraph.Edge.prototype.addIntersections=function(li,segmentIndex,geomIndex){for(var i=0;i<li.getIntersectionNum();i++){this.addIntersection(li,segmentIndex,geomIndex,i)}};jsts.geomgraph.Edge.prototype.addIntersection=function(li,segmentIndex,geomIndex,intIndex){var intPt=new jsts.geom.Coordinate(li.getIntersection(intIndex));var normalizedSegmentIndex=segmentIndex;var dist=li.getEdgeDistance(geomIndex,intIndex);var nextSegIndex=normalizedSegmentIndex+1;if(nextSegIndex<this.pts.length){var nextPt=this.pts[nextSegIndex];if(intPt.equals2D(nextPt)){normalizedSegmentIndex=nextSegIndex;dist=0}}var ei=this.eiList.add(intPt,normalizedSegmentIndex,dist)};jsts.geomgraph.Edge.prototype.getMaximumSegmentIndex=function(){return this.pts.length-1};jsts.geomgraph.Edge.prototype.getEdgeIntersectionList=function(){return this.eiList};jsts.geomgraph.Edge.prototype.getMonotoneChainEdge=function(){if(this.mce==null){this.mce=new jsts.geomgraph.index.MonotoneChainEdge(this)}return this.mce};jsts.geomgraph.Edge.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1])};jsts.geomgraph.Edge.prototype.isCollapsed=function(){if(!this.label.isArea())return false;if(this.pts.length!=3)return false;if(this.pts[0].equals(this.pts[2]))return true;return false};jsts.geomgraph.Edge.prototype.getCollapsedEdge=function(){var newPts=[];newPts[0]=this.pts[0];newPts[1]=this.pts[1];var newe=new jsts.geomgraph.Edge(newPts,jsts.geomgraph.Label.toLineLabel(this.label));return newe};jsts.geomgraph.Edge.prototype.computeIM=function(im){jsts.geomgraph.Edge.updateIM(this.label,im)};jsts.geomgraph.Edge.prototype.isPointwiseEqual=function(e){if(this.pts.length!=e.pts.length)return false;for(var i=0;i<this.pts.length;i++){if(!this.pts[i].equals2D(e.pts[i])){return false}}return true};jsts.noding.Octant=function(){throw jsts.error.AbstractMethodInvocationError()};jsts.noding.Octant.octant=function(dx,dy){if(dx instanceof jsts.geom.Coordinate){return jsts.noding.Octant.octant2.apply(this,arguments)}if(dx===0&&dy===0)throw new jsts.error.IllegalArgumentError("Cannot compute the octant for point ( "+dx+", "+dy+" )");var adx=Math.abs(dx);var ady=Math.abs(dy);if(dx>=0){if(dy>=0){if(adx>=ady)return 0;else return 1}else{if(adx>=ady)return 7;else return 6}}else{if(dy>=0){if(adx>=ady)return 3;else return 2}else{if(adx>=ady)return 4;else return 5}}};jsts.noding.Octant.octant2=function(p0,p1){var dx=p1.x-p0.x;var dy=p1.y-p0.y;if(dx===0&&dy===0)throw new jsts.error.IllegalArgumentError("Cannot compute the octant for two identical points "+p0);return jsts.noding.Octant.octant(dx,dy)};jsts.operation.union.UnionInteracting=function(g0,g1){this.g0=g0;this.g1=g1;this.geomFactory=g0.getFactory();this.interacts0=[];this.interacts1=[]};jsts.operation.union.UnionInteracting.union=function(g0,g1){var uue=new jsts.operation.union.UnionInteracting(g0,g1);return uue.union()};jsts.operation.union.UnionInteracting.prototype.geomFactory=null;jsts.operation.union.UnionInteracting.prototype.g0=null;jsts.operation.union.UnionInteracting.prototype.g1=null;jsts.operation.union.UnionInteracting.prototype.interacts0=null;jsts.operation.union.UnionInteracting.prototype.interacts1=null;jsts.operation.union.UnionInteracting.prototype.union=function(){this.computeInteracting();var int0=this.extractElements(this.g0,this.interacts0,true);var int1=this.extractElements(this.g1,this.interacts1,true);if(int0.isEmpty()||int1.isEmpty()){}var union=in0.union(int1);var disjoint0=this.extractElements(this.g0,this.interacts0,false);var disjoint1=this.extractElements(this.g1,this.interacts1,false);var overallUnion=jsts.geom.util.GeometryCombiner.combine(union,disjoint0,disjoint1);return overallUnion};jsts.operation.union.UnionInteracting.prototype.bufferUnion=function(g0,g1){var factory=g0.getFactory();var gColl=factory.createGeometryCollection([g0,g1]);var unionAll=gColl.buffer(0);return unionAll};jsts.operation.union.UnionInteracting.prototype.computeInteracting=function(elem0){if(!elem0){for(var i=0,l=this.g0.getNumGeometries();i<l;i++){var elem=this.g0.getGeometryN(i);this.interacts0[i]=this.computeInteracting(elem)}}else{var interactsWithAny=false;for(var i=0,l=g1.getNumGeometries();i<l;i++){var elem1=this.g1.getGeometryN(i);var interacts=elem1.getEnvelopeInternal().intersects(elem0.getEnvelopeInternal());if(interacts){this.interacts1[i]=true;interactsWithAny=true}}return interactsWithAny}};jsts.operation.union.UnionInteracting.prototype.extractElements=function(geom,interacts,isInteracting){var extractedGeoms=[];for(var i=0,l=geom.getNumGeometries();i<l;i++){var elem=geom.getGeometryN(i);if(interacts[i]===isInteracting){extractedGeoms.push(elem)}}return this.geomFactory.buildGeometry(extractedGeoms)};jsts.triangulate.quadedge.TrianglePredicate=function(){};jsts.triangulate.quadedge.TrianglePredicate.isInCircleNonRobust=function(a,b,c,p){var isInCircle=(a.x*a.x+a.y*a.y)*jsts.triangulate.quadedge.TrianglePredicate.triArea(b,c,p)-(b.x*b.x+b.y*b.y)*jsts.triangulate.quadedge.TrianglePredicate.triArea(a,c,p)+(c.x*c.x+c.y*c.y)*jsts.triangulate.quadedge.TrianglePredicate.triArea(a,b,p)-(p.x*p.x+p.y*p.y)*jsts.triangulate.quadedge.TrianglePredicate.triArea(a,b,c)>0;return isInCircle};jsts.triangulate.quadedge.TrianglePredicate.isInCircleNormalized=function(a,b,c,p){var adx,ady,bdx,bdy,cdx,cdy,abdet,bcdet,cadet,alift,blift,clift,disc;adx=a.x-p.x;ady=a.y-p.y;bdx=b.x-p.x;bdy=b.y-p.y;cdx=c.x-p.x;cdy=c.y-p.y;abdet=adx*bdy-bdx*ady;bcdet=bdx*cdy-cdx*bdy;cadet=cdx*ady-adx*cdy;alift=adx*adx+ady*ady;blift=bdx*bdx+bdy*bdy;clift=cdx*cdx+cdy*cdy;disc=alift*bcdet+blift*cadet+clift*abdet;return disc>0};jsts.triangulate.quadedge.TrianglePredicate.triArea=function(a,b,c){return(b.x-a.x)*(c.y-a.y)-(b.y-a.y)*(c.x-a.x)};jsts.triangulate.quadedge.TrianglePredicate.isInCircleRobust=function(a,b,c,p){return jsts.triangulate.quadedge.TrianglePredicate.isInCircleNormalized(a,b,c,p)};jsts.triangulate.quadedge.TrianglePredicate.isInCircleDDSlow=function(a,b,c,p){var px,py,ax,ay,bx,by,cx,cy,aTerm,bTerm,cTerm,pTerm,sum,isInCircle;px=jsts.math.DD.valueOf(p.x);py=jsts.math.DD.valueOf(p.y);ax=jsts.math.DD.valueOf(a.x);ay=jsts.math.DD.valueOf(a.y);bx=jsts.math.DD.valueOf(b.x);by=jsts.math.DD.valueOf(b.y);cx=jsts.math.DD.valueOf(c.x);cy=jsts.math.DD.valueOf(c.y);aTerm=ax.multiply(ax).add(ay.multiply(ay)).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(bx,by,cx,cy,px,py));bTerm=bx.multiply(bx).add(by.multiply(by)).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(ax,ay,cx,cy,px,py));cTerm=cx.multiply(cx).add(cy.multiply(cy)).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(ax,ay,bx,by,px,py));pTerm=px.multiply(px).add(py.multiply(py)).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(ax,ay,bx,by,cx,cy));sum=aTerm.subtract(bTerm).add(cTerm).subtract(pTerm);isInCircle=sum.doubleValue()>0;return isInCircle};jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow=function(ax,ay,bx,by,cx,cy){return bx.subtract(ax).multiply(cy.subtract(ay)).subtract(by.subtract(ay).multiply(cx.subtract(ax)))};jsts.triangulate.quadedge.TrianglePredicate.isInCircleDDFast=function(a,b,c,p){var aTerm,bTerm,cTerm,pTerm,sum,isInCircle;aTerm=jsts.math.DD.sqr(a.x).selfAdd(jsts.math.DD.sqr(a.y)).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(b,c,p));bTerm=jsts.math.DD.sqr(b.x).selfAdd(jsts.math.DD.sqr(b.y)).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(a,c,p));cTerm=jsts.math.DD.sqr(c.x).selfAdd(jsts.math.DD.sqr(c.y)).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(a,b,p));pTerm=jsts.math.DD.sqr(p.x).selfAdd(jsts.math.DD.sqr(p.y)).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(a,b,c));sum=aTerm.selfSubtract(bTerm).selfAdd(cTerm).selfSubtract(pTerm);isInCircle=sum.doubleValue()>0;return isInCircle};jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast=function(a,b,c){var t1,t2;t1=jsts.math.DD.valueOf(b.x).selfSubtract(a.x).selfMultiply(jsts.math.DD.valueOf(c.y).selfSubtract(a.y));t2=jsts.math.DD.valueOf(b.y).selSubtract(a.y).selfMultiply(jsts.math.DD.valueOf(c.x).selfSubtract(a.x));return t1.selfSubtract(t2)};jsts.triangulate.quadedge.TrianglePredicate.isInCircleDDNormalized=function(a,b,c,p){var adx,ady,bdx,bdy,cdx,cdy,abdet,bcdet,cadet,alift,blift,clift,sum,isInCircle;adx=jsts.math.DD.valueOf(a.x).selfSubtract(p.x);ady=jsts.math.DD.valueOf(a.y).selfSubtract(p.y);bdx=jsts.math.DD.valueOf(b.x).selfSubtract(p.x);bdx=jsts.math.DD.valueOf(b.y).selfSubtract(p.y);cdx=jsts.math.DD.valueOf(c.x).selfSubtract(p.x);cdx=jsts.math.DD.valueOf(c.y).selfSubtract(p.y);abdet=adx.multiply(bdy).selfSubtract(bdx.multiply(ady));bcdet=bdx.multiply(cdy).selfSubtract(cdx.multiply(bdy));cadet=cdx.multiply(ady).selfSubtract(adx.multiply(cdy));alift=adx.multiply(adx).selfAdd(ady.multiply(ady));blift=bdx.multiply(bdx).selfAdd(bdy.multiply(bdy));clift=cdx.multiply(cdx).selfAdd(cdy.multiply(cdy));sum=alift.selfMultiply(bcdet).selfAdd(blift.selfMultiply(cadet)).selfAdd(clift.selfMultiply(abdet));isInCircle=sum.doubleValue()>0;return isInCircle};jsts.triangulate.quadedge.TrianglePredicate.isInCircleCC=function(a,b,c,p){var cc,ccRadius,pRadiusDiff;cc=jsts.geom.Triangle.circumcentre(a,b,c);ccRadius=a.distance(cc);pRadiusDiff=p.distance(cc)-ccRadius;return pRadiusDiff<=0};jsts.operation.union.PointGeometryUnion=function(pointGeom,otherGeom){this.pointGeom=pointGeom;this.otherGeom=otherGeom;this.geomFact=otherGeom.getFactory()};jsts.operation.union.PointGeometryUnion.union=function(pointGeom,otherGeom){var unioner=new jsts.operation.union.PointGeometryUnion(pointGeom,otherGeom);return unioner.union()};jsts.operation.union.PointGeometryUnion.prototype.pointGeom=null;jsts.operation.union.PointGeometryUnion.prototype.otherGeom=null;jsts.operation.union.PointGeometryUnion.prototype.geomFact=null;jsts.operation.union.PointGeometryUnion.prototype.union=function(){var locator=new jsts.algorithm.PointLocator;var exteriorCoords=[];for(var i=0,l=this.pointGeom.getNumGeometries();i<l;i++){var point=this.pointGeom.getGeometryN(i);var coord=point.getCoordinate();var loc=locator.locate(coord,this.otherGeom);if(loc===jsts.geom.Location.EXTERIOR){var include=true;for(var j=exteriorCoords.length;i--;){if(exteriorCoords[j].equals(coord)){include=false;break}}if(include){exteriorCoords.push(coord)}}}exteriorCoords.sort(function(x,y){return x.compareTo(y)});if(exteriorCoords.length===0){return this.otherGeom}var ptComp=null;var coords=jsts.geom.CoordinateArrays.toCoordinateArray(exteriorCoords);if(coords.length===1){ptComp=this.geomFact.createPoint(coords[0])}else{ptComp=this.geomFact.createMultiPoint(coords)}return jsts.geom.util.GeometryCombiner.combine(ptComp,this.otherGeom)};jsts.noding.IntersectionFinderAdder=function(li){this.li=li;this.interiorIntersections=new javascript.util.ArrayList};jsts.noding.IntersectionFinderAdder.prototype=new jsts.noding.SegmentIntersector;jsts.noding.IntersectionFinderAdder.constructor=jsts.noding.IntersectionFinderAdder;jsts.noding.IntersectionFinderAdder.prototype.li=null;jsts.noding.IntersectionFinderAdder.prototype.interiorIntersections=null;jsts.noding.IntersectionFinderAdder.prototype.getInteriorIntersections=function(){return this.interiorIntersections};jsts.noding.IntersectionFinderAdder.prototype.processIntersections=function(e0,segIndex0,e1,segIndex1){if(e0===e1&&segIndex0===segIndex1)return;var p00=e0.getCoordinates()[segIndex0];var p01=e0.getCoordinates()[segIndex0+1];var p10=e1.getCoordinates()[segIndex1];var p11=e1.getCoordinates()[segIndex1+1];this.li.computeIntersection(p00,p01,p10,p11);if(this.li.hasIntersection()){if(this.li.isInteriorIntersection()){for(var intIndex=0;intIndex<this.li.getIntersectionNum();intIndex++){this.interiorIntersections.add(this.li.getIntersection(intIndex))}e0.addIntersections(this.li,segIndex0,0);e1.addIntersections(this.li,segIndex1,1)}}};jsts.noding.IntersectionFinderAdder.prototype.isDone=function(){return false};jsts.noding.snapround.MCIndexSnapRounder=function(pm){this.pm=pm;this.li=new jsts.algorithm.RobustLineIntersector;this.li.setPrecisionModel(pm);this.scaleFactor=pm.getScale()};jsts.noding.snapround.MCIndexSnapRounder.prototype=new jsts.noding.Noder;jsts.noding.snapround.MCIndexSnapRounder.constructor=jsts.noding.snapround.MCIndexSnapRounder;jsts.noding.snapround.MCIndexSnapRounder.prototype.pm=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.li=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.scaleFactor=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.noder=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.pointSnapper=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.nodedSegStrings=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.getNodedSubstrings=function(){return jsts.noding.NodedSegmentString.getNodedSubstrings(this.nodedSegStrings)};jsts.noding.snapround.MCIndexSnapRounder.prototype.computeNodes=function(inputSegmentStrings){this.nodedSegStrings=inputSegmentStrings;this.noder=new jsts.noding.MCIndexNoder;this.pointSnapper=new jsts.noding.snapround.MCIndexPointSnapper(this.noder.getIndex());this.snapRound(inputSegmentStrings,this.li)};jsts.noding.snapround.MCIndexSnapRounder.prototype.snapRound=function(segStrings,li){var intersections=this.findInteriorIntersections(segStrings,li);this.computeIntersectionSnaps(intersections);this.computeVertexSnaps(segStrings)};jsts.noding.snapround.MCIndexSnapRounder.prototype.findInteriorIntersections=function(segStrings,li){var intFinderAdder=new jsts.noding.IntersectionFinderAdder(li);this.noder.setSegmentIntersector(intFinderAdder);this.noder.computeNodes(segStrings);return intFinderAdder.getInteriorIntersections()};jsts.noding.snapround.MCIndexSnapRounder.prototype.computeIntersectionSnaps=function(snapPts){for(var it=snapPts.iterator();it.hasNext();){var snapPt=it.next();var hotPixel=new jsts.noding.snapround.HotPixel(snapPt,this.scaleFactor,this.li);this.pointSnapper.snap(hotPixel)}};jsts.noding.snapround.MCIndexSnapRounder.prototype.computeVertexSnaps=function(edges){if(edges instanceof jsts.noding.NodedSegmentString){this.computeVertexSnaps2.apply(this,arguments);return}for(var i0=edges.iterator();i0.hasNext();){var edge0=i0.next();this.computeVertexSnaps(edge0)}};jsts.noding.snapround.MCIndexSnapRounder.prototype.computeVertexSnaps2=function(e){var pts0=e.getCoordinates();for(var i=0;i<pts0.length-1;i++){var hotPixel=new jsts.noding.snapround.HotPixel(pts0[i],this.scaleFactor,this.li);var isNodeAdded=this.pointSnapper.snap(hotPixel,e,i);if(isNodeAdded){e.addIntersection(pts0[i],i)}}};jsts.operation.valid.ConnectedInteriorTester=function(geomGraph){this.geomGraph=geomGraph;this.geometryFactory=new jsts.geom.GeometryFactory;this.disconnectedRingcoord=null};jsts.operation.valid.ConnectedInteriorTester.findDifferentPoint=function(coord,pt){var i=0,il=coord.length;for(i;i<il;i++){if(!coord[i].equals(pt))return coord[i]}return null};jsts.operation.valid.ConnectedInteriorTester.prototype.getCoordinate=function(){return this.disconnectedRingcoord};jsts.operation.valid.ConnectedInteriorTester.prototype.isInteriorsConnected=function(){var splitEdges=new javascript.util.ArrayList;this.geomGraph.computeSplitEdges(splitEdges);var graph=new jsts.geomgraph.PlanarGraph(new jsts.operation.overlay.OverlayNodeFactory);graph.addEdges(splitEdges);this.setInteriorEdgesInResult(graph);graph.linkResultDirectedEdges();var edgeRings=this.buildEdgeRings(graph.getEdgeEnds());this.visitShellInteriors(this.geomGraph.getGeometry(),graph);return!this.hasUnvisitedShellEdge(edgeRings)};jsts.operation.valid.ConnectedInteriorTester.prototype.setInteriorEdgesInResult=function(graph){var it=graph.getEdgeEnds().iterator(),de;while(it.hasNext()){de=it.next();if(de.getLabel().getLocation(0,jsts.geomgraph.Position.RIGHT)==jsts.geom.Location.INTERIOR){de.setInResult(true)}}};jsts.operation.valid.ConnectedInteriorTester.prototype.buildEdgeRings=function(dirEdges){var edgeRings=new javascript.util.ArrayList;for(var it=dirEdges.iterator();it.hasNext();){var de=it.next();if(de.isInResult()&&de.getEdgeRing()==null){var er=new jsts.operation.overlay.MaximalEdgeRing(de,this.geometryFactory);er.linkDirectedEdgesForMinimalEdgeRings();var minEdgeRings=er.buildMinimalRings();var i=0,il=minEdgeRings.length;for(i;i<il;i++){edgeRings.add(minEdgeRings[i])}}}return edgeRings};jsts.operation.valid.ConnectedInteriorTester.prototype.visitShellInteriors=function(g,graph){if(g instanceof jsts.geom.Polygon){var p=g;this.visitInteriorRing(p.getExteriorRing(),graph)}if(g instanceof jsts.geom.MultiPolygon){var mp=g;for(var i=0;i<mp.getNumGeometries();i++){var p=mp.getGeometryN(i);this.visitInteriorRing(p.getExteriorRing(),graph)}}};jsts.operation.valid.ConnectedInteriorTester.prototype.visitInteriorRing=function(ring,graph){var pts=ring.getCoordinates();var pt0=pts[0];var pt1=jsts.operation.valid.ConnectedInteriorTester.findDifferentPoint(pts,pt0);var e=graph.findEdgeInSameDirection(pt0,pt1);var de=graph.findEdgeEnd(e);var intDe=null;if(de.getLabel().getLocation(0,jsts.geomgraph.Position.RIGHT)==jsts.geom.Location.INTERIOR){intDe=de}else if(de.getSym().getLabel().getLocation(0,jsts.geomgraph.Position.RIGHT)==jsts.geom.Location.INTERIOR){intDe=de.getSym()}this.visitLinkedDirectedEdges(intDe)};jsts.operation.valid.ConnectedInteriorTester.prototype.visitLinkedDirectedEdges=function(start){var startDe=start;var de=start;do{de.setVisited(true);de=de.getNext()}while(de!=startDe)};jsts.operation.valid.ConnectedInteriorTester.prototype.hasUnvisitedShellEdge=function(edgeRings){for(var i=0;i<edgeRings.size();i++){var er=edgeRings.get(i);if(er.isHole()){continue}var edges=er.getEdges();var de=edges[0];if(de.getLabel().getLocation(0,jsts.geomgraph.Position.RIGHT)!=jsts.geom.Location.INTERIOR){continue}for(var j=0;j<edges.length;j++){de=edges[j];if(!de.isVisited()){disconnectedRingcoord=de.getCoordinate();return true}}}return false};jsts.algorithm.InteriorPointLine=function(geometry){this.centroid;this.minDistance=Number.MAX_VALUE;this.interiorPoint=null;this.centroid=geometry.getCentroid().getCoordinate();this.addInterior(geometry);if(this.interiorPoint==null){this.addEndpoints(geometry)}};jsts.algorithm.InteriorPointLine.prototype.getInteriorPoint=function(){return this.interiorPoint};jsts.algorithm.InteriorPointLine.prototype.addInterior=function(geometry){if(geometry instanceof jsts.geom.LineString){this.addInteriorCoord(geometry.getCoordinates())}else if(geometry instanceof jsts.geom.GeometryCollection){for(var i=0;i<geometry.getNumGeometries();i++){this.addInterior(geometry.getGeometryN(i))}}};jsts.algorithm.InteriorPointLine.prototype.addInteriorCoord=function(pts){for(var i=1;i<pts.length-1;i++){this.add(pts[i])}};jsts.algorithm.InteriorPointLine.prototype.addEndpoints=function(geometry){if(geometry instanceof jsts.geom.LineString){this.addEndpointsCoord(geometry.getCoordinates())}else if(geometry instanceof jsts.geom.GeometryCollection){for(var i=0;i<geometry.getNumGeometries();i++){this.addEndpoints(geometry.getGeometryN(i))}}};jsts.algorithm.InteriorPointLine.prototype.addEndpointsCoord=function(pts){this.add(pts[0]);this.add(pts[pts.length-1])};jsts.algorithm.InteriorPointLine.prototype.add=function(point){var dist=point.distance(this.centroid);if(dist<this.minDistance){this.interiorPoint=new jsts.geom.Coordinate(point);this.minDistance=dist}};jsts.index.chain.MonotoneChainSelectAction=function(){this.tempEnv1=new jsts.geom.Envelope;this.selectedSegment=new jsts.geom.LineSegment};jsts.index.chain.MonotoneChainSelectAction.prototype.tempEnv1=null;jsts.index.chain.MonotoneChainSelectAction.prototype.selectedSegment=null;jsts.index.chain.MonotoneChainSelectAction.prototype.select=function(mc,start){mc.getLineSegment(start,this.selectedSegment);this.select2(this.selectedSegment)};jsts.index.chain.MonotoneChainSelectAction.prototype.select2=function(seg){};jsts.algorithm.MCPointInRing=function(ring){this.ring=ring;this.tree=null;this.crossings=0;this.interval=new jsts.index.bintree.Interval;this.buildIndex()};jsts.algorithm.MCPointInRing.MCSelecter=function(p,parent){this.parent=parent;this.p=p};jsts.algorithm.MCPointInRing.MCSelecter.prototype=new jsts.index.chain.MonotoneChainSelectAction;jsts.algorithm.MCPointInRing.MCSelecter.prototype.constructor=jsts.algorithm.MCPointInRing.MCSelecter;jsts.algorithm.MCPointInRing.MCSelecter.prototype.select2=function(ls){this.parent.testLineSegment.apply(this.parent,[this.p,ls])};jsts.algorithm.MCPointInRing.prototype.buildIndex=function(){this.tree=new jsts.index.bintree.Bintree;var pts=jsts.geom.CoordinateArrays.removeRepeatedPoints(this.ring.getCoordinates());var mcList=jsts.index.chain.MonotoneChainBuilder.getChains(pts);for(var i=0;i<mcList.length;i++){var mc=mcList[i];var mcEnv=mc.getEnvelope();this.interval.min=mcEnv.getMinY();this.interval.max=mcEnv.getMaxY();this.tree.insert(this.interval,mc)}};jsts.algorithm.MCPointInRing.prototype.isInside=function(pt){this.crossings=0;var rayEnv=new jsts.geom.Envelope(-Number.MAX_VALUE,Number.MAX_VALUE,pt.y,pt.y);this.interval.min=pt.y;this.interval.max=pt.y;var segs=this.tree.query(this.interval);var mcSelecter=new jsts.algorithm.MCPointInRing.MCSelecter(pt,this);for(var i=segs.iterator();i.hasNext();){var mc=i.next();this.testMonotoneChain(rayEnv,mcSelecter,mc)}if(this.crossings%2==1){return true}return false};jsts.algorithm.MCPointInRing.prototype.testMonotoneChain=function(rayEnv,mcSelecter,mc){mc.select(rayEnv,mcSelecter)};jsts.algorithm.MCPointInRing.prototype.testLineSegment=function(p,seg){var xInt,x1,y1,x2,y2,p1,p2;p1=seg.p0;p2=seg.p1;x1=p1.x-p.x;y1=p1.y-p.y;x2=p2.x-p.x;y2=p2.y-p.y;if(y1>0&&y2<=0||y2>0&&y1<=0){xInt=jsts.algorithm.RobustDeterminant.signOfDet2x2(x1,y1,x2,y2)/(y2-y1);if(0<xInt){this.crossings++}}};jsts.operation.valid.TopologyValidationError=function(errorType,pt){this.errorType=errorType;this.pt=null;if(pt!=null){this.pt=pt.clone()}};jsts.operation.valid.TopologyValidationError.HOLE_OUTSIDE_SHELL=2;jsts.operation.valid.TopologyValidationError.NESTED_HOLES=3;jsts.operation.valid.TopologyValidationError.DISCONNECTED_INTERIOR=4;jsts.operation.valid.TopologyValidationError.SELF_INTERSECTION=5;jsts.operation.valid.TopologyValidationError.RING_SELF_INTERSECTION=6;jsts.operation.valid.TopologyValidationError.NESTED_SHELLS=7;jsts.operation.valid.TopologyValidationError.DUPLICATE_RINGS=8;jsts.operation.valid.TopologyValidationError.TOO_FEW_POINTS=9;jsts.operation.valid.TopologyValidationError.INVALID_COORDINATE=10;jsts.operation.valid.TopologyValidationError.RING_NOT_CLOSED=11;jsts.operation.valid.TopologyValidationError.prototype.errMsg=["Topology Validation Error","Repeated Point","Hole lies outside shell","Holes are nested","Interior is disconnected","Self-intersection","Ring Self-intersection","Nested shells","Duplicate Rings","Too few distinct points in geometry component","Invalid Coordinate","Ring is not closed"];jsts.operation.valid.TopologyValidationError.prototype.getCoordinate=function(){return this.pt};jsts.operation.valid.TopologyValidationError.prototype.getErrorType=function(){return this.errorType};jsts.operation.valid.TopologyValidationError.prototype.getMessage=function(){return this.errMsg[this.errorType]};jsts.operation.valid.TopologyValidationError.prototype.toString=function(){var locStr="";if(this.pt!=null){locStr=" at or near point "+this.pt;return this.getMessage()+locStr}return locStr};(function(){jsts.geom.MultiPolygon=function(geometries,factory){this.geometries=geometries||[];this.factory=factory};jsts.geom.MultiPolygon.prototype=new jsts.geom.GeometryCollection;jsts.geom.MultiPolygon.constructor=jsts.geom.MultiPolygon;jsts.geom.MultiPolygon.prototype.getBoundary=function(){if(this.isEmpty()){return this.getFactory().createMultiLineString(null)}var allRings=[];for(var i=0;i<this.geometries.length;i++){var polygon=this.geometries[i];var rings=polygon.getBoundary();for(var j=0;j<rings.getNumGeometries();j++){allRings.push(rings.getGeometryN(j))}}return this.getFactory().createMultiLineString(allRings)};jsts.geom.MultiPolygon.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}return jsts.geom.GeometryCollection.prototype.equalsExact.call(this,other,tolerance)};jsts.geom.MultiPolygon.prototype.CLASS_NAME="jsts.geom.MultiPolygon"})();jsts.geom.CoordinateSequenceFilter=function(){};jsts.geom.CoordinateSequenceFilter.prototype.filter=jsts.abstractFunc;jsts.geom.CoordinateSequenceFilter.prototype.isDone=jsts.abstractFunc;jsts.geom.CoordinateSequenceFilter.prototype.isGeometryChanged=jsts.abstractFunc;(function(){var Interval=function(){this.min=0;this.max=0;if(arguments.length===1){var interval=arguments[0];this.init(interval.min,interval.max)}else if(arguments.length===2){this.init(arguments[0],arguments[1])}};Interval.prototype.init=function(min,max){this.min=min;this.max=max;if(min>max){this.min=max;this.max=min}};Interval.prototype.getMin=function(){return this.min};Interval.prototype.getMax=function(){return this.max};Interval.prototype.getWidth=function(){return this.max-this.min};Interval.prototype.expandToInclude=function(interval){if(interval.max>this.max){this.max=interval.max}if(interval.min<this.min){this.min=interval.min}};Interval.prototype.overlaps=function(){if(arguments.length===1){return this.overlapsInterval.apply(this,arguments)}else{return this.overlapsMinMax.apply(this,arguments)}};Interval.prototype.overlapsInterval=function(interval){return this.overlaps(interval.min,interval.max)};Interval.prototype.overlapsMinMax=function(min,max){if(this.min>max||this.max<min){return false}return true};Interval.prototype.contains=function(){var interval;if(arguments[0]instanceof jsts.index.bintree.Interval){interval=arguments[0];return this.containsMinMax(interval.min,interval.max)}else if(arguments.length===1){return this.containsPoint(arguments[0])}else{return this.containsMinMax(arguments[0],arguments[1])}};Interval.prototype.containsMinMax=function(min,max){return min>=this.min&&max<=this.max};Interval.prototype.containsPoint=function(p){return p>=this.min&&p<=this.max};jsts.index.bintree.Interval=Interval})();jsts.index.DoubleBits=function(){};jsts.index.DoubleBits.powerOf2=function(exp){return Math.pow(2,exp)};jsts.index.DoubleBits.exponent=function(d){return jsts.index.DoubleBits.CVTFWD(64,d)-1023};jsts.index.DoubleBits.CVTFWD=function(NumW,Qty){var Sign,Expo,Mant,Bin,nb01="";var Inf={32:{d:127,c:128,b:0,a:0},64:{d:32752,c:0,b:0,a:0}};var ExW={32:8,64:11}[NumW],MtW=NumW-ExW-1;if(!Bin){Sign=Qty<0||1/Qty<0;if(!isFinite(Qty)){Bin=Inf[NumW];if(Sign){Bin.d+=1<<NumW/4-1}Expo=Math.pow(2,ExW)-1;Mant=0}}if(!Bin){Expo={32:127,64:1023}[NumW];Mant=Math.abs(Qty);while(Mant>=2){Expo++;Mant/=2}while(Mant<1&&Expo>0){Expo--;Mant*=2}if(Expo<=0){Mant/=2;nb01="Zero or Denormal"}if(NumW===32&&Expo>254){nb01="Too big for Single";Bin={d:Sign?255:127,c:128,b:0,a:0};Expo=Math.pow(2,ExW)-1;Mant=0}}return Expo};(function(){var DoubleBits=jsts.index.DoubleBits;var Interval=jsts.index.bintree.Interval;var Key=function(interval){this.pt=0;this.level=0;this.computeKey(interval)};Key.computeLevel=function(interval){var dx=interval.getWidth(),level;level=DoubleBits.exponent(dx)+1;return level};Key.prototype.getPoint=function(){return this.pt};Key.prototype.getLevel=function(){return this.level};Key.prototype.getInterval=function(){return this.interval};Key.prototype.computeKey=function(itemInterval){this.level=Key.computeLevel(itemInterval);this.interval=new Interval;this.computeInterval(this.level,itemInterval);while(!this.interval.contains(itemInterval)){this.level+=1;this.computeInterval(this.level,itemInterval)}};Key.prototype.computeInterval=function(level,itemInterval){var size=DoubleBits.powerOf2(level);this.pt=Math.floor(itemInterval.getMin()/size)*size;this.interval.init(this.pt,this.pt+size)};jsts.index.bintree.Key=Key})();jsts.operation.buffer.SubgraphDepthLocater=function(subgraphs){this.subgraphs=[];this.seg=new jsts.geom.LineSegment;this.subgraphs=subgraphs};jsts.operation.buffer.SubgraphDepthLocater.prototype.subgraphs=null;jsts.operation.buffer.SubgraphDepthLocater.prototype.seg=null;jsts.operation.buffer.SubgraphDepthLocater.prototype.getDepth=function(p){var stabbedSegments=this.findStabbedSegments(p);if(stabbedSegments.length===0)return 0;stabbedSegments.sort();var ds=stabbedSegments[0];return ds.leftDepth};jsts.operation.buffer.SubgraphDepthLocater.prototype.findStabbedSegments=function(stabbingRayLeftPt){if(arguments.length===3){this.findStabbedSegments2.apply(this,arguments);return}var stabbedSegments=[];for(var i=0;i<this.subgraphs.length;i++){var bsg=this.subgraphs[i];var env=bsg.getEnvelope();if(stabbingRayLeftPt.y<env.getMinY()||stabbingRayLeftPt.y>env.getMaxY())continue;this.findStabbedSegments2(stabbingRayLeftPt,bsg.getDirectedEdges(),stabbedSegments)}return stabbedSegments};jsts.operation.buffer.SubgraphDepthLocater.prototype.findStabbedSegments2=function(stabbingRayLeftPt,dirEdges,stabbedSegments){if(arguments[1]instanceof jsts.geomgraph.DirectedEdge){this.findStabbedSegments3(stabbingRayLeftPt,dirEdges,stabbedSegments);return}for(var i=dirEdges.iterator();i.hasNext();){var de=i.next();if(!de.isForward())continue;this.findStabbedSegments3(stabbingRayLeftPt,de,stabbedSegments)}};jsts.operation.buffer.SubgraphDepthLocater.prototype.findStabbedSegments3=function(stabbingRayLeftPt,dirEdge,stabbedSegments){var pts=dirEdge.getEdge().getCoordinates();for(var i=0;i<pts.length-1;i++){this.seg.p0=pts[i];this.seg.p1=pts[i+1];if(this.seg.p0.y>this.seg.p1.y)this.seg.reverse();var maxx=Math.max(this.seg.p0.x,this.seg.p1.x);if(maxx<stabbingRayLeftPt.x)continue;if(this.seg.isHorizontal())continue;if(stabbingRayLeftPt.y<this.seg.p0.y||stabbingRayLeftPt.y>this.seg.p1.y)continue;if(jsts.algorithm.CGAlgorithms.computeOrientation(this.seg.p0,this.seg.p1,stabbingRayLeftPt)===jsts.algorithm.CGAlgorithms.RIGHT)continue;var depth=dirEdge.getDepth(jsts.geomgraph.Position.LEFT);if(!this.seg.p0.equals(pts[i]))depth=dirEdge.getDepth(jsts.geomgraph.Position.RIGHT);var ds=new jsts.operation.buffer.SubgraphDepthLocater.DepthSegment(this.seg,depth);stabbedSegments.push(ds)}};jsts.operation.buffer.SubgraphDepthLocater.DepthSegment=function(seg,depth){this.upwardSeg=new jsts.geom.LineSegment(seg);this.leftDepth=depth};jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.upwardSeg=null;jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.leftDepth=null;jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.compareTo=function(obj){var other=obj;var orientIndex=this.upwardSeg.orientationIndex(other.upwardSeg);if(orientIndex===0)orientIndex=-1*other.upwardSeg.orientationIndex(upwardSeg);if(orientIndex!==0)return orientIndex;return this.compareX(this.upwardSeg,other.upwardSeg)};jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.compareX=function(seg0,seg1){var compare0=seg0.p0.compareTo(seg1.p0);if(compare0!==0)return compare0;return seg0.p1.compareTo(seg1.p1)};jsts.noding.snapround.HotPixel=function(pt,scaleFactor,li){this.corner=[];this.originalPt=pt;this.pt=pt;this.scaleFactor=scaleFactor;this.li=li;if(this.scaleFactor!==1){this.pt=new jsts.geom.Coordinate(this.scale(pt.x),this.scale(pt.y));this.p0Scaled=new jsts.geom.Coordinate;this.p1Scaled=new jsts.geom.Coordinate}this.initCorners(this.pt)};jsts.noding.snapround.HotPixel.prototype.li=null;jsts.noding.snapround.HotPixel.prototype.pt=null;jsts.noding.snapround.HotPixel.prototype.originalPt=null;jsts.noding.snapround.HotPixel.prototype.ptScaled=null;jsts.noding.snapround.HotPixel.prototype.p0Scaled=null;jsts.noding.snapround.HotPixel.prototype.p1Scaled=null;jsts.noding.snapround.HotPixel.prototype.scaleFactor=undefined;jsts.noding.snapround.HotPixel.prototype.minx=undefined;jsts.noding.snapround.HotPixel.prototype.maxx=undefined;jsts.noding.snapround.HotPixel.prototype.miny=undefined;
jsts.noding.snapround.HotPixel.prototype.maxy=undefined;jsts.noding.snapround.HotPixel.prototype.corner=null;jsts.noding.snapround.HotPixel.prototype.safeEnv=null;jsts.noding.snapround.HotPixel.prototype.getCoordinate=function(){return this.originalPt};jsts.noding.snapround.HotPixel.SAFE_ENV_EXPANSION_FACTOR=.75;jsts.noding.snapround.HotPixel.prototype.getSafeEnvelope=function(){if(this.safeEnv===null){var safeTolerance=jsts.noding.snapround.HotPixel.SAFE_ENV_EXPANSION_FACTOR/this.scaleFactor;this.safeEnv=new jsts.geom.Envelope(this.originalPt.x-safeTolerance,this.originalPt.x+safeTolerance,this.originalPt.y-safeTolerance,this.originalPt.y+safeTolerance)}return this.safeEnv};jsts.noding.snapround.HotPixel.prototype.initCorners=function(pt){var tolerance=.5;this.minx=pt.x-tolerance;this.maxx=pt.x+tolerance;this.miny=pt.y-tolerance;this.maxy=pt.y+tolerance;this.corner[0]=new jsts.geom.Coordinate(this.maxx,this.maxy);this.corner[1]=new jsts.geom.Coordinate(this.minx,this.maxy);this.corner[2]=new jsts.geom.Coordinate(this.minx,this.miny);this.corner[3]=new jsts.geom.Coordinate(this.maxx,this.miny)};jsts.noding.snapround.HotPixel.prototype.scale=function(val){return Math.round(val*this.scaleFactor)};jsts.noding.snapround.HotPixel.prototype.intersects=function(p0,p1){if(this.scaleFactor===1)return this.intersectsScaled(p0,p1);this.copyScaled(p0,this.p0Scaled);this.copyScaled(p1,this.p1Scaled);return this.intersectsScaled(this.p0Scaled,this.p1Scaled)};jsts.noding.snapround.HotPixel.prototype.copyScaled=function(p,pScaled){pScaled.x=this.scale(p.x);pScaled.y=this.scale(p.y)};jsts.noding.snapround.HotPixel.prototype.intersectsScaled=function(p0,p1){var segMinx=Math.min(p0.x,p1.x);var segMaxx=Math.max(p0.x,p1.x);var segMiny=Math.min(p0.y,p1.y);var segMaxy=Math.max(p0.y,p1.y);var isOutsidePixelEnv=this.maxx<segMinx||this.minx>segMaxx||this.maxy<segMiny||this.miny>segMaxy;if(isOutsidePixelEnv)return false;var intersects=this.intersectsToleranceSquare(p0,p1);jsts.util.Assert.isTrue(!(isOutsidePixelEnv&&intersects),"Found bad envelope test");return intersects};jsts.noding.snapround.HotPixel.prototype.intersectsToleranceSquare=function(p0,p1){var intersectsLeft=false;var intersectsBottom=false;this.li.computeIntersection(p0,p1,this.corner[0],this.corner[1]);if(this.li.isProper())return true;this.li.computeIntersection(p0,p1,this.corner[1],this.corner[2]);if(this.li.isProper())return true;if(this.li.hasIntersection())intersectsLeft=true;this.li.computeIntersection(p0,p1,this.corner[2],this.corner[3]);if(this.li.isProper())return true;if(this.li.hasIntersection())intersectsBottom=true;this.li.computeIntersection(p0,p1,this.corner[3],this.corner[0]);if(this.li.isProper())return true;if(intersectsLeft&&intersectsBottom)return true;if(p0.equals(this.pt))return true;if(p1.equals(this.pt))return true;return false};jsts.noding.snapround.HotPixel.prototype.intersectsPixelClosure=function(p0,p1){this.li.computeIntersection(p0,p1,this.corner[0],this.corner[1]);if(this.li.hasIntersection())return true;this.li.computeIntersection(p0,p1,this.corner[1],this.corner[2]);if(this.li.hasIntersection())return true;this.li.computeIntersection(p0,p1,this.corner[2],this.corner[3]);if(this.li.hasIntersection())return true;this.li.computeIntersection(p0,p1,this.corner[3],this.corner[0]);if(this.li.hasIntersection())return true;return false};jsts.noding.snapround.HotPixel.prototype.addSnappedNode=function(segStr,segIndex){var p0=segStr.getCoordinate(segIndex);var p1=segStr.getCoordinate(segIndex+1);if(this.intersects(p0,p1)){segStr.addIntersection(this.getCoordinate(),segIndex);return true}return false};jsts.operation.buffer.BufferInputLineSimplifier=function(inputLine){this.inputLine=inputLine};jsts.operation.buffer.BufferInputLineSimplifier.simplify=function(inputLine,distanceTol){var simp=new jsts.operation.buffer.BufferInputLineSimplifier(inputLine);return simp.simplify(distanceTol)};jsts.operation.buffer.BufferInputLineSimplifier.INIT=0;jsts.operation.buffer.BufferInputLineSimplifier.DELETE=1;jsts.operation.buffer.BufferInputLineSimplifier.KEEP=1;jsts.operation.buffer.BufferInputLineSimplifier.prototype.inputLine=null;jsts.operation.buffer.BufferInputLineSimplifier.prototype.distanceTol=null;jsts.operation.buffer.BufferInputLineSimplifier.prototype.isDeleted=null;jsts.operation.buffer.BufferInputLineSimplifier.prototype.angleOrientation=jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE;jsts.operation.buffer.BufferInputLineSimplifier.prototype.simplify=function(distanceTol){this.distanceTol=Math.abs(distanceTol);if(distanceTol<0)this.angleOrientation=jsts.algorithm.CGAlgorithms.CLOCKWISE;this.isDeleted=[];this.isDeleted.length=this.inputLine.length;var isChanged=false;do{isChanged=this.deleteShallowConcavities()}while(isChanged);return this.collapseLine()};jsts.operation.buffer.BufferInputLineSimplifier.prototype.deleteShallowConcavities=function(){var index=1;var maxIndex=this.inputLine.length-1;var midIndex=this.findNextNonDeletedIndex(index);var lastIndex=this.findNextNonDeletedIndex(midIndex);var isChanged=false;while(lastIndex<this.inputLine.length){var isMiddleVertexDeleted=false;if(this.isDeletable(index,midIndex,lastIndex,this.distanceTol)){this.isDeleted[midIndex]=jsts.operation.buffer.BufferInputLineSimplifier.DELETE;isMiddleVertexDeleted=true;isChanged=true}if(isMiddleVertexDeleted)index=lastIndex;else index=midIndex;midIndex=this.findNextNonDeletedIndex(index);lastIndex=this.findNextNonDeletedIndex(midIndex)}return isChanged};jsts.operation.buffer.BufferInputLineSimplifier.prototype.findNextNonDeletedIndex=function(index){var next=index+1;while(next<this.inputLine.length&&this.isDeleted[next]===jsts.operation.buffer.BufferInputLineSimplifier.DELETE)next++;return next};jsts.operation.buffer.BufferInputLineSimplifier.prototype.collapseLine=function(){var coordList=[];for(var i=0;i<this.inputLine.length;i++){if(this.isDeleted[i]!==jsts.operation.buffer.BufferInputLineSimplifier.DELETE)coordList.push(this.inputLine[i])}return coordList};jsts.operation.buffer.BufferInputLineSimplifier.prototype.isDeletable=function(i0,i1,i2,distanceTol){var p0=this.inputLine[i0];var p1=this.inputLine[i1];var p2=this.inputLine[i2];if(!this.isConcave(p0,p1,p2))return false;if(!this.isShallow(p0,p1,p2,distanceTol))return false;return this.isShallowSampled(p0,p1,i0,i2,distanceTol)};jsts.operation.buffer.BufferInputLineSimplifier.prototype.isShallowConcavity=function(p0,p1,p2,distanceTol){var orientation=jsts.algorithm.CGAlgorithms.computeOrientation(p0,p1,p2);var isAngleToSimplify=orientation===this.angleOrientation;if(!isAngleToSimplify)return false;var dist=jsts.algorithm.CGAlgorithms.distancePointLine(p1,p0,p2);return dist<distanceTol};jsts.operation.buffer.BufferInputLineSimplifier.NUM_PTS_TO_CHECK=10;jsts.operation.buffer.BufferInputLineSimplifier.prototype.isShallowSampled=function(p0,p2,i0,i2,distanceTol){var inc=parseInt((i2-i0)/jsts.operation.buffer.BufferInputLineSimplifier.NUM_PTS_TO_CHECK);if(inc<=0)inc=1;for(var i=i0;i<i2;i+=inc){if(!this.isShallow(p0,p2,this.inputLine[i],distanceTol))return false}return true};jsts.operation.buffer.BufferInputLineSimplifier.prototype.isShallow=function(p0,p1,p2,distanceTol){var dist=jsts.algorithm.CGAlgorithms.distancePointLine(p1,p0,p2);return dist<distanceTol};jsts.operation.buffer.BufferInputLineSimplifier.prototype.isConcave=function(p0,p1,p2){var orientation=jsts.algorithm.CGAlgorithms.computeOrientation(p0,p1,p2);var isConcave=orientation===this.angleOrientation;return isConcave};jsts.geomgraph.index.SweepLineEvent=function(x,obj,label){if(!(obj instanceof jsts.geomgraph.index.SweepLineEvent)){this.eventType=jsts.geomgraph.index.SweepLineEvent.INSERT;this.label=label;this.xValue=x;this.obj=obj;return}this.eventType=jsts.geomgraph.index.SweepLineEvent.DELETE;this.xValue=x;this.insertEvent=obj};jsts.geomgraph.index.SweepLineEvent.INSERT=1;jsts.geomgraph.index.SweepLineEvent.DELETE=2;jsts.geomgraph.index.SweepLineEvent.prototype.label=null;jsts.geomgraph.index.SweepLineEvent.prototype.xValue=null;jsts.geomgraph.index.SweepLineEvent.prototype.eventType=null;jsts.geomgraph.index.SweepLineEvent.prototype.insertEvent=null;jsts.geomgraph.index.SweepLineEvent.prototype.deleteEventIndex=null;jsts.geomgraph.index.SweepLineEvent.prototype.obj=null;jsts.geomgraph.index.SweepLineEvent.prototype.isInsert=function(){return this.eventType==jsts.geomgraph.index.SweepLineEvent.INSERT};jsts.geomgraph.index.SweepLineEvent.prototype.isDelete=function(){return this.eventType==jsts.geomgraph.index.SweepLineEvent.DELETE};jsts.geomgraph.index.SweepLineEvent.prototype.getInsertEvent=function(){return this.insertEvent};jsts.geomgraph.index.SweepLineEvent.prototype.getDeleteEventIndex=function(){return this.deleteEventIndex};jsts.geomgraph.index.SweepLineEvent.prototype.setDeleteEventIndex=function(deleteEventIndex){this.deleteEventIndex=deleteEventIndex};jsts.geomgraph.index.SweepLineEvent.prototype.getObject=function(){return this.obj};jsts.geomgraph.index.SweepLineEvent.prototype.isSameLabel=function(ev){if(this.label==null){return false}return this.label==ev.label};jsts.geomgraph.index.SweepLineEvent.prototype.compareTo=function(pe){if(this.xValue<pe.xValue){return-1}if(this.xValue>pe.xValue){return 1}if(this.eventType<pe.eventType){return-1}if(this.eventType>pe.eventType){return 1}return 0};jsts.geom.CoordinateList=function(coord,allowRepeated){javascript.util.ArrayList.apply(this,arguments);allowRepeated=allowRepeated===undefined?true:allowRepeated;if(coord!==undefined){this.add(coord,allowRepeated)}};jsts.geom.CoordinateList.prototype=new javascript.util.ArrayList;jsts.geom.CoordinateList.prototype.add=function(){if(arguments.length>1){return this.addCoordinates.apply(this,arguments)}else{return javascript.util.ArrayList.prototype.add.apply(this,arguments)}};jsts.geom.CoordinateList.prototype.addCoordinates=function(coord,allowRepeated,direction){if(coord instanceof jsts.geom.Coordinate){return this.addCoordinate.apply(this,arguments)}else if(typeof coord==="number"){return this.insertCoordinate.apply(this,arguments)}direction=direction||true;if(direction){for(var i=0;i<coord.length;i++){this.addCoordinate(coord[i],allowRepeated)}}else{for(var i=coord.length-1;i>=0;i--){this.addCoordinate(coord[i],allowRepeated)}}return true};jsts.geom.CoordinateList.prototype.addCoordinate=function(coord,allowRepeated){if(!allowRepeated){if(this.size()>=1){var last=this.get(this.size()-1);if(last.equals2D(coord))return}}this.add(coord)};jsts.geom.CoordinateList.prototype.insertCoordinate=function(index,coord,allowRepeated){if(!allowRepeated){var before=index>0?index-1:-1;if(before!==-1&&this.get(before).equals2D(coord)){return}var after=index<this.size()-1?index+1:-1;if(after!==-1&&this.get(after).equals2D(coord)){return}}this.array.splice(index,0,coord)};jsts.geom.CoordinateList.prototype.closeRing=function(){if(this.size()>0){this.addCoordinate(new jsts.geom.Coordinate(this.get(0)),false)}};jsts.geom.CoordinateList.prototype.toArray=function(){var i,il,arr;i=0,il=this.size(),arr=[];for(i;i<il;i++){arr[i]=this.get(i)}return arr};jsts.geom.CoordinateList.prototype.toCoordinateArray=function(){return this.toArray()};jsts.operation.buffer.OffsetSegmentGenerator=function(precisionModel,bufParams,distance){this.seg0=new jsts.geom.LineSegment;this.seg1=new jsts.geom.LineSegment;this.offset0=new jsts.geom.LineSegment;this.offset1=new jsts.geom.LineSegment;this.precisionModel=precisionModel;this.bufParams=bufParams;this.li=new jsts.algorithm.RobustLineIntersector;this.filletAngleQuantum=Math.PI/2/bufParams.getQuadrantSegments();if(this.bufParams.getQuadrantSegments()>=8&&this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_ROUND){this.closingSegLengthFactor=jsts.operation.buffer.OffsetSegmentGenerator.MAX_CLOSING_SEG_LEN_FACTOR}this.init(distance)};jsts.operation.buffer.OffsetSegmentGenerator.OFFSET_SEGMENT_SEPARATION_FACTOR=.001;jsts.operation.buffer.OffsetSegmentGenerator.INSIDE_TURN_VERTEX_SNAP_DISTANCE_FACTOR=.001;jsts.operation.buffer.OffsetSegmentGenerator.CURVE_VERTEX_SNAP_DISTANCE_FACTOR=1e-6;jsts.operation.buffer.OffsetSegmentGenerator.MAX_CLOSING_SEG_LEN_FACTOR=80;jsts.operation.buffer.OffsetSegmentGenerator.prototype.maxCurveSegmentError=0;jsts.operation.buffer.OffsetSegmentGenerator.prototype.filletAngleQuantum=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.closingSegLengthFactor=1;jsts.operation.buffer.OffsetSegmentGenerator.prototype.segList=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.distance=0;jsts.operation.buffer.OffsetSegmentGenerator.prototype.precisionModel=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.bufParams=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.li=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.s0=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.s1=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.s2=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.seg0=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.seg1=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.offset0=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.offset1=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.side=0;jsts.operation.buffer.OffsetSegmentGenerator.prototype.hasNarrowConcaveAngle=false;jsts.operation.buffer.OffsetSegmentGenerator.prototype.hasNarrowConcaveAngle=function(){return this.hasNarrowConcaveAngle};jsts.operation.buffer.OffsetSegmentGenerator.prototype.init=function(distance){this.distance=distance;this.maxCurveSegmentError=this.distance*(1-Math.cos(this.filletAngleQuantum/2));this.segList=new jsts.operation.buffer.OffsetSegmentString;this.segList.setPrecisionModel(this.precisionModel);this.segList.setMinimumVertexDistance(this.distance*jsts.operation.buffer.OffsetSegmentGenerator.CURVE_VERTEX_SNAP_DISTANCE_FACTOR)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.initSideSegments=function(s1,s2,side){this.s1=s1;this.s2=s2;this.side=side;this.seg1.setCoordinates(this.s1,this.s2);this.computeOffsetSegment(this.seg1,this.side,this.distance,this.offset1)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.getCoordinates=function(){return this.segList.getCoordinates()};jsts.operation.buffer.OffsetSegmentGenerator.prototype.closeRing=function(){this.segList.closeRing()};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addSegments=function(pt,isForward){this.segList.addPts(pt,isForward)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addFirstSegment=function(){this.segList.addPt(this.offset1.p0)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addLastSegment=function(){this.segList.addPt(this.offset1.p1)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addNextSegment=function(p,addStartPoint){this.s0=this.s1;this.s1=this.s2;this.s2=p;this.seg0.setCoordinates(this.s0,this.s1);this.computeOffsetSegment(this.seg0,this.side,this.distance,this.offset0);this.seg1.setCoordinates(this.s1,this.s2);this.computeOffsetSegment(this.seg1,this.side,this.distance,this.offset1);if(this.s1.equals(this.s2))return;var orientation=jsts.algorithm.CGAlgorithms.computeOrientation(this.s0,this.s1,this.s2);var outsideTurn=orientation===jsts.algorithm.CGAlgorithms.CLOCKWISE&&this.side===jsts.geomgraph.Position.LEFT||orientation===jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE&&this.side===jsts.geomgraph.Position.RIGHT;if(orientation==0){this.addCollinear(addStartPoint)}else if(outsideTurn){this.addOutsideTurn(orientation,addStartPoint)}else{this.addInsideTurn(orientation,addStartPoint)}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addCollinear=function(addStartPoint){this.li.computeIntersection(this.s0,this.s1,this.s1,this.s2);var numInt=this.li.getIntersectionNum();if(numInt>=2){if(this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_BEVEL||this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_MITRE){if(addStartPoint)this.segList.addPt(this.offset0.p1);this.segList.addPt(this.offset1.p0)}else{this.addFillet(this.s1,this.offset0.p1,this.offset1.p0,jsts.algorithm.CGAlgorithms.CLOCKWISE,this.distance)}}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addOutsideTurn=function(orientation,addStartPoint){if(this.offset0.p1.distance(this.offset1.p0)<this.distance*jsts.operation.buffer.OffsetSegmentGenerator.OFFSET_SEGMENT_SEPARATION_FACTOR){this.segList.addPt(this.offset0.p1);return}if(this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_MITRE){this.addMitreJoin(this.s1,this.offset0,this.offset1,this.distance)}else if(this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_BEVEL){this.addBevelJoin(this.offset0,this.offset1)}else{if(addStartPoint)this.segList.addPt(this.offset0.p1);this.addFillet(this.s1,this.offset0.p1,this.offset1.p0,orientation,this.distance);this.segList.addPt(this.offset1.p0)}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addInsideTurn=function(orientation,addStartPoint){this.li.computeIntersection(this.offset0.p0,this.offset0.p1,this.offset1.p0,this.offset1.p1);if(this.li.hasIntersection()){this.segList.addPt(this.li.getIntersection(0))}else{this.hasNarrowConcaveAngle=true;if(this.offset0.p1.distance(this.offset1.p0)<this.distance*jsts.operation.buffer.OffsetSegmentGenerator.INSIDE_TURN_VERTEX_SNAP_DISTANCE_FACTOR){this.segList.addPt(this.offset0.p1)}else{this.segList.addPt(this.offset0.p1);if(this.closingSegLengthFactor>0){var mid0=new jsts.geom.Coordinate((this.closingSegLengthFactor*this.offset0.p1.x+this.s1.x)/(this.closingSegLengthFactor+1),(this.closingSegLengthFactor*this.offset0.p1.y+this.s1.y)/(this.closingSegLengthFactor+1));this.segList.addPt(mid0);var mid1=new jsts.geom.Coordinate((this.closingSegLengthFactor*this.offset1.p0.x+this.s1.x)/(this.closingSegLengthFactor+1),(this.closingSegLengthFactor*this.offset1.p0.y+this.s1.y)/(this.closingSegLengthFactor+1));this.segList.addPt(mid1)}else{this.segList.addPt(this.s1)}this.segList.addPt(this.offset1.p0)}}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.computeOffsetSegment=function(seg,side,distance,offset){var sideSign=side===jsts.geomgraph.Position.LEFT?1:-1;var dx=seg.p1.x-seg.p0.x;var dy=seg.p1.y-seg.p0.y;var len=Math.sqrt(dx*dx+dy*dy);var ux=sideSign*distance*dx/len;var uy=sideSign*distance*dy/len;offset.p0.x=seg.p0.x-uy;offset.p0.y=seg.p0.y+ux;offset.p1.x=seg.p1.x-uy;offset.p1.y=seg.p1.y+ux};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addLineEndCap=function(p0,p1){var seg=new jsts.geom.LineSegment(p0,p1);var offsetL=new jsts.geom.LineSegment;this.computeOffsetSegment(seg,jsts.geomgraph.Position.LEFT,this.distance,offsetL);var offsetR=new jsts.geom.LineSegment;this.computeOffsetSegment(seg,jsts.geomgraph.Position.RIGHT,this.distance,offsetR);var dx=p1.x-p0.x;var dy=p1.y-p0.y;var angle=Math.atan2(dy,dx);switch(this.bufParams.getEndCapStyle()){case jsts.operation.buffer.BufferParameters.CAP_ROUND:this.segList.addPt(offsetL.p1);this.addFillet(p1,angle+Math.PI/2,angle-Math.PI/2,jsts.algorithm.CGAlgorithms.CLOCKWISE,this.distance);this.segList.addPt(offsetR.p1);break;case jsts.operation.buffer.BufferParameters.CAP_FLAT:this.segList.addPt(offsetL.p1);this.segList.addPt(offsetR.p1);break;case jsts.operation.buffer.BufferParameters.CAP_SQUARE:var squareCapSideOffset=new jsts.geom.Coordinate;squareCapSideOffset.x=Math.abs(this.distance)*Math.cos(angle);squareCapSideOffset.y=Math.abs(this.distance)*Math.sin(angle);var squareCapLOffset=new jsts.geom.Coordinate(offsetL.p1.x+squareCapSideOffset.x,offsetL.p1.y+squareCapSideOffset.y);var squareCapROffset=new jsts.geom.Coordinate(offsetR.p1.x+squareCapSideOffset.x,offsetR.p1.y+squareCapSideOffset.y);this.segList.addPt(squareCapLOffset);this.segList.addPt(squareCapROffset);break}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addMitreJoin=function(p,offset0,offset1,distance){var isMitreWithinLimit=true;var intPt=null;try{intPt=jsts.algorithm.HCoordinate.intersection(offset0.p0,offset0.p1,offset1.p0,offset1.p1);var mitreRatio=distance<=0?1:intPt.distance(p)/Math.abs(distance);if(mitreRatio>this.bufParams.getMitreLimit())this.isMitreWithinLimit=false}catch(e){if(e instanceof jsts.error.NotRepresentableError){intPt=new jsts.geom.Coordinate(0,0);this.isMitreWithinLimit=false}}if(isMitreWithinLimit){this.segList.addPt(intPt)}else{this.addLimitedMitreJoin(offset0,offset1,distance,bufParams.getMitreLimit())}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addLimitedMitreJoin=function(offset0,offset1,distance,mitreLimit){var basePt=this.seg0.p1;var ang0=jsts.algorithm.Angle.angle(basePt,this.seg0.p0);var ang1=jsts.algorithm.Angle.angle(basePt,this.seg1.p1);var angDiff=jsts.algorithm.Angle.angleBetweenOriented(this.seg0.p0,basePt,this.seg1.p1);var angDiffHalf=angDiff/2;var midAng=jsts.algorithm.Angle.normalize(ang0+angDiffHalf);var mitreMidAng=jsts.algorithm.Angle.normalize(midAng+Math.PI);var mitreDist=mitreLimit*distance;var bevelDelta=mitreDist*Math.abs(Math.sin(angDiffHalf));var bevelHalfLen=distance-bevelDelta;var bevelMidX=basePt.x+mitreDist*Math.cos(mitreMidAng);var bevelMidY=basePt.y+mitreDist*Math.sin(mitreMidAng);var bevelMidPt=new jsts.geom.Coordinate(bevelMidX,bevelMidY);var mitreMidLine=new jsts.geom.LineSegment(basePt,bevelMidPt);var bevelEndLeft=mitreMidLine.pointAlongOffset(1,bevelHalfLen);var bevelEndRight=mitreMidLine.pointAlongOffset(1,-bevelHalfLen);if(this.side==jsts.geomgraph.Position.LEFT){this.segList.addPt(bevelEndLeft);this.segList.addPt(bevelEndRight)}else{this.segList.addPt(bevelEndRight);this.segList.addPt(bevelEndLeft)}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addBevelJoin=function(offset0,offset1){this.segList.addPt(offset0.p1);this.segList.addPt(offset1.p0)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addFillet=function(p,p0,p1,direction,radius){if(!(p1 instanceof jsts.geom.Coordinate)){this.addFillet2.apply(this,arguments);return}var dx0=p0.x-p.x;var dy0=p0.y-p.y;var startAngle=Math.atan2(dy0,dx0);var dx1=p1.x-p.x;var dy1=p1.y-p.y;var endAngle=Math.atan2(dy1,dx1);if(direction===jsts.algorithm.CGAlgorithms.CLOCKWISE){if(startAngle<=endAngle)startAngle+=2*Math.PI}else{if(startAngle>=endAngle)startAngle-=2*Math.PI}this.segList.addPt(p0);this.addFillet(p,startAngle,endAngle,direction,radius);this.segList.addPt(p1)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addFillet2=function(p,startAngle,endAngle,direction,radius){var directionFactor=direction===jsts.algorithm.CGAlgorithms.CLOCKWISE?-1:1;var totalAngle=Math.abs(startAngle-endAngle);var nSegs=parseInt(totalAngle/this.filletAngleQuantum+.5);if(nSegs<1)return;var initAngle,currAngleInc;initAngle=0;currAngleInc=totalAngle/nSegs;var currAngle=initAngle;var pt=new jsts.geom.Coordinate;while(currAngle<totalAngle){var angle=startAngle+directionFactor*currAngle;pt.x=p.x+radius*Math.cos(angle);pt.y=p.y+radius*Math.sin(angle);this.segList.addPt(pt);currAngle+=currAngleInc}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.createCircle=function(p){var pt=new jsts.geom.Coordinate(p.x+this.distance,p.y);this.segList.addPt(pt);this.addFillet(p,0,2*Math.PI,-1,this.distance);this.segList.closeRing()};jsts.operation.buffer.OffsetSegmentGenerator.prototype.createSquare=function(p){this.segList.addPt(new jsts.geom.Coordinate(p.x+distance,p.y+distance));this.segList.addPt(new jsts.geom.Coordinate(p.x+distance,p.y-distance));this.segList.addPt(new jsts.geom.Coordinate(p.x-distance,p.y-distance));this.segList.addPt(new jsts.geom.Coordinate(p.x-distance,p.y+distance));this.segList.closeRing()};jsts.operation.overlay.MaximalEdgeRing=function(start,geometryFactory){jsts.geomgraph.EdgeRing.call(this,start,geometryFactory)};jsts.operation.overlay.MaximalEdgeRing.prototype=new jsts.geomgraph.EdgeRing;jsts.operation.overlay.MaximalEdgeRing.constructor=jsts.operation.overlay.MaximalEdgeRing;jsts.operation.overlay.MaximalEdgeRing.prototype.getNext=function(de){return de.getNext()};jsts.operation.overlay.MaximalEdgeRing.prototype.setEdgeRing=function(de,er){de.setEdgeRing(er)};jsts.operation.overlay.MaximalEdgeRing.prototype.linkDirectedEdgesForMinimalEdgeRings=function(){var de=this.startDe;do{var node=de.getNode();node.getEdges().linkMinimalDirectedEdges(this);de=de.getNext()}while(de!=this.startDe)};jsts.operation.overlay.MaximalEdgeRing.prototype.buildMinimalRings=function(){var minEdgeRings=[];var de=this.startDe;do{if(de.getMinEdgeRing()===null){var minEr=new jsts.operation.overlay.MinimalEdgeRing(de,this.geometryFactory);minEdgeRings.push(minEr)}de=de.getNext()}while(de!=this.startDe);return minEdgeRings};jsts.algorithm.CentroidPoint=function(){this.centSum=new jsts.geom.Coordinate};jsts.algorithm.CentroidPoint.prototype.ptCount=0;jsts.algorithm.CentroidPoint.prototype.centSum=null;jsts.algorithm.CentroidPoint.prototype.add=function(geom){if(geom instanceof jsts.geom.Point){this.add2(geom.getCoordinate())}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){var gc=geom;for(var i=0;i<gc.getNumGeometries();i++){this.add(gc.getGeometryN(i))}}};jsts.algorithm.CentroidPoint.prototype.add2=function(pt){this.ptCount+=1;this.centSum.x+=pt.x;this.centSum.y+=pt.y};jsts.algorithm.CentroidPoint.prototype.getCentroid=function(){var cent=new jsts.geom.Coordinate;cent.x=this.centSum.x/this.ptCount;cent.y=this.centSum.y/this.ptCount;return cent};jsts.operation.distance.ConnectedElementLocationFilter=function(locations){this.locations=locations};jsts.operation.distance.ConnectedElementLocationFilter.prototype=new jsts.geom.GeometryFilter;jsts.operation.distance.ConnectedElementLocationFilter.prototype.locations=null;jsts.operation.distance.ConnectedElementLocationFilter.getLocations=function(geom){var locations=[];geom.apply(new jsts.operation.distance.ConnectedElementLocationFilter(locations));return locations};jsts.operation.distance.ConnectedElementLocationFilter.prototype.filter=function(geom){if(geom instanceof jsts.geom.Point||geom instanceof jsts.geom.LineString||geom instanceof jsts.geom.Polygon)this.locations.push(new jsts.operation.distance.GeometryLocation(geom,0,geom.getCoordinate()))};jsts.geomgraph.index.MonotoneChainEdge=function(e){this.e=e;this.pts=e.getCoordinates();var mcb=new jsts.geomgraph.index.MonotoneChainIndexer;this.startIndex=mcb.getChainStartIndices(this.pts)};jsts.geomgraph.index.MonotoneChainEdge.prototype.e=null;jsts.geomgraph.index.MonotoneChainEdge.prototype.pts=null;jsts.geomgraph.index.MonotoneChainEdge.prototype.startIndex=null;jsts.geomgraph.index.MonotoneChainEdge.prototype.env1=new jsts.geom.Envelope;jsts.geomgraph.index.MonotoneChainEdge.prototype.env2=new jsts.geom.Envelope;jsts.geomgraph.index.MonotoneChainEdge.prototype.getCoordinates=function(){return this.pts};jsts.geomgraph.index.MonotoneChainEdge.prototype.getStartIndexes=function(){return this.startIndex};jsts.geomgraph.index.MonotoneChainEdge.prototype.getMinX=function(chainIndex){var x1=this.pts[this.startIndex[chainIndex]].x;var x2=this.pts[this.startIndex[chainIndex+1]].x;if(x1<x2){return x1}return x2};jsts.geomgraph.index.MonotoneChainEdge.prototype.getMaxX=function(chainIndex){var x1=this.pts[this.startIndex[chainIndex]].x;var x2=this.pts[this.startIndex[chainIndex+1]].x;if(x1>x2){return x1}return x2};jsts.geomgraph.index.MonotoneChainEdge.prototype.computeIntersects=function(mce,si){for(var i=0;i<this.startIndex.length-1;i++){for(var j=0;j<mce.startIndex.length-1;j++){this.computeIntersectsForChain(i,mce,j,si)}}};jsts.geomgraph.index.MonotoneChainEdge.prototype.computeIntersectsForChain=function(chainIndex0,mce,chainIndex1,si){this.computeIntersectsForChain2(this.startIndex[chainIndex0],this.startIndex[chainIndex0+1],mce,mce.startIndex[chainIndex1],mce.startIndex[chainIndex1+1],si)};jsts.geomgraph.index.MonotoneChainEdge.prototype.computeIntersectsForChain2=function(start0,end0,mce,start1,end1,ei){var p00=this.pts[start0];var p01=this.pts[end0];var p10=mce.pts[start1];var p11=mce.pts[end1];if(end0-start0==1&&end1-start1==1){ei.addIntersections(this.e,start0,mce.e,start1);return}this.env1.init(p00,p01);this.env2.init(p10,p11);if(!this.env1.intersects(this.env2)){return}var mid0=Math.floor((start0+end0)/2);var mid1=Math.floor((start1+end1)/2);if(start0<mid0){if(start1<mid1){this.computeIntersectsForChain2(start0,mid0,mce,start1,mid1,ei)}if(mid1<end1){this.computeIntersectsForChain2(start0,mid0,mce,mid1,end1,ei)}}if(mid0<end0){if(start1<mid1){this.computeIntersectsForChain2(mid0,end0,mce,start1,mid1,ei)}if(mid1<end1){this.computeIntersectsForChain2(mid0,end0,mce,mid1,end1,ei)}}};(function(){var ArrayList=javascript.util.ArrayList;jsts.operation.relate.EdgeEndBuilder=function(){};jsts.operation.relate.EdgeEndBuilder.prototype.computeEdgeEnds=function(edges){if(arguments.length==2){this.computeEdgeEnds2.apply(this,arguments);return}var l=new ArrayList;for(var i=edges;i.hasNext();){var e=i.next();this.computeEdgeEnds2(e,l)}return l};jsts.operation.relate.EdgeEndBuilder.prototype.computeEdgeEnds2=function(edge,l){var eiList=edge.getEdgeIntersectionList();eiList.addEndpoints();var it=eiList.iterator();var eiPrev=null;var eiCurr=null;if(!it.hasNext())return;var eiNext=it.next();do{eiPrev=eiCurr;eiCurr=eiNext;eiNext=null;if(it.hasNext())eiNext=it.next();if(eiCurr!==null){this.createEdgeEndForPrev(edge,l,eiCurr,eiPrev);this.createEdgeEndForNext(edge,l,eiCurr,eiNext)}}while(eiCurr!==null)};jsts.operation.relate.EdgeEndBuilder.prototype.createEdgeEndForPrev=function(edge,l,eiCurr,eiPrev){var iPrev=eiCurr.segmentIndex;if(eiCurr.dist===0){if(iPrev===0)return;iPrev--}var pPrev=edge.getCoordinate(iPrev);if(eiPrev!==null&&eiPrev.segmentIndex>=iPrev)pPrev=eiPrev.coord;var label=new jsts.geomgraph.Label(edge.getLabel());label.flip();var e=new jsts.geomgraph.EdgeEnd(edge,eiCurr.coord,pPrev,label);l.add(e)};jsts.operation.relate.EdgeEndBuilder.prototype.createEdgeEndForNext=function(edge,l,eiCurr,eiNext){var iNext=eiCurr.segmentIndex+1;if(iNext>=edge.getNumPoints()&&eiNext===null)return;var pNext=edge.getCoordinate(iNext);if(eiNext!==null&&eiNext.segmentIndex===eiCurr.segmentIndex)pNext=eiNext.coord;var e=new jsts.geomgraph.EdgeEnd(edge,eiCurr.coord,pNext,new jsts.geomgraph.Label(edge.getLabel()));l.add(e)}})();(function(){jsts.io.GeoJSONParser=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory;this.geometryTypes=["Point","MultiPoint","LineString","MultiLineString","Polygon","MultiPolygon"]};jsts.io.GeoJSONParser.prototype.read=function(json){var obj;if(typeof json==="string"){obj=JSON.parse(json)}else{obj=json}var type=obj.type;if(!this.parse[type]){throw new Error("Unknown GeoJSON type: "+obj.type)}if(this.geometryTypes.indexOf(type)!=-1){return this.parse[type].apply(this,[obj.coordinates])}else if(type==="GeometryCollection"){return this.parse[type].apply(this,[obj.geometries])}return this.parse[type].apply(this,[obj])};jsts.io.GeoJSONParser.prototype.parse={Feature:function(obj){var feature={};for(var key in obj){feature[key]=obj[key]}if(obj.geometry){var type=obj.geometry.type;if(!this.parse[type]){throw new Error("Unknown GeoJSON type: "+obj.type)}feature.geometry=this.read(obj.geometry)}if(obj.bbox){feature.bbox=this.parse.bbox.apply(this,[obj.bbox])}return feature},FeatureCollection:function(obj){var featureCollection={};if(obj.features){featureCollection.features=[];for(var i=0;i<obj.features.length;++i){featureCollection.features.push(this.read(obj.features[i]))}}if(obj.bbox){featureCollection.bbox=this.parse.bbox.apply(this,[obj.bbox])}return featureCollection},coordinates:function(array){var coordinates=[];for(var i=0;i<array.length;++i){var sub=array[i];coordinates.push(new jsts.geom.Coordinate(sub[0],sub[1]))}return coordinates},bbox:function(array){return this.geometryFactory.createLinearRing([new jsts.geom.Coordinate(array[0],array[1]),new jsts.geom.Coordinate(array[2],array[1]),new jsts.geom.Coordinate(array[2],array[3]),new jsts.geom.Coordinate(array[0],array[3]),new jsts.geom.Coordinate(array[0],array[1])])
},Point:function(array){var coordinate=new jsts.geom.Coordinate(array[0],array[1]);return this.geometryFactory.createPoint(coordinate)},MultiPoint:function(array){var points=[];for(var i=0;i<array.length;++i){points.push(this.parse.Point.apply(this,[array[i]]))}return this.geometryFactory.createMultiPoint(points)},LineString:function(array){var coordinates=this.parse.coordinates.apply(this,[array]);return this.geometryFactory.createLineString(coordinates)},MultiLineString:function(array){var lineStrings=[];for(var i=0;i<array.length;++i){lineStrings.push(this.parse.LineString.apply(this,[array[i]]))}return this.geometryFactory.createMultiLineString(lineStrings)},Polygon:function(array){var shellCoordinates=this.parse.coordinates.apply(this,[array[0]]);var shell=this.geometryFactory.createLinearRing(shellCoordinates);var holes=[];for(var i=1;i<array.length;++i){var hole=array[i];var coordinates=this.parse.coordinates.apply(this,[hole]);var linearRing=this.geometryFactory.createLinearRing(coordinates);holes.push(linearRing)}return this.geometryFactory.createPolygon(shell,holes)},MultiPolygon:function(array){var polygons=[];for(var i=0;i<array.length;++i){var polygon=array[i];polygons.push(this.parse.Polygon.apply(this,[polygon]))}return this.geometryFactory.createMultiPolygon(polygons)},GeometryCollection:function(array){var geometries=[];for(var i=0;i<array.length;++i){var geometry=array[i];geometries.push(this.read(geometry))}return this.geometryFactory.createGeometryCollection(geometries)}};jsts.io.GeoJSONParser.prototype.write=function(geometry){var type=geometry.CLASS_NAME.slice(10);if(!this.extract[type]){throw new Error("Geometry is not supported")}return this.extract[type].apply(this,[geometry])};jsts.io.GeoJSONParser.prototype.extract={coordinate:function(coordinate){return[coordinate.x,coordinate.y]},Point:function(point){var array=this.extract.coordinate.apply(this,[point.coordinate]);return{type:"Point",coordinates:array}},MultiPoint:function(multipoint){var array=[];for(var i=0;i<multipoint.geometries.length;++i){var point=multipoint.geometries[i];var geoJson=this.extract.Point.apply(this,[point]);array.push(geoJson.coordinates)}return{type:"MultiPoint",coordinates:array}},LineString:function(linestring){var array=[];for(var i=0;i<linestring.points.length;++i){var coordinate=linestring.points[i];array.push(this.extract.coordinate.apply(this,[coordinate]))}return{type:"LineString",coordinates:array}},MultiLineString:function(multilinestring){var array=[];for(var i=0;i<multilinestring.geometries.length;++i){var linestring=multilinestring.geometries[i];var geoJson=this.extract.LineString.apply(this,[linestring]);array.push(geoJson.coordinates)}return{type:"MultiLineString",coordinates:array}},Polygon:function(polygon){var array=[];var shellGeoJson=this.extract.LineString.apply(this,[polygon.shell]);array.push(shellGeoJson.coordinates);for(var i=0;i<polygon.holes.length;++i){var hole=polygon.holes[i];var holeGeoJson=this.extract.LineString.apply(this,[hole]);array.push(holeGeoJson.coordinates)}return{type:"Polygon",coordinates:array}},MultiPolygon:function(multipolygon){var array=[];for(var i=0;i<multipolygon.geometries.length;++i){var polygon=multipolygon.geometries[i];var geoJson=this.extract.Polygon.apply(this,[polygon]);array.push(geoJson.coordinates)}return{type:"MultiPolygon",coordinates:array}},GeometryCollection:function(collection){var array=[];for(var i=0;i<collection.geometries.length;++i){var geometry=collection.geometries[i];var type=geometry.CLASS_NAME.slice(10);array.push(this.extract[type].apply(this,[geometry]))}return{type:"GeometryCollection",geometries:array}}}})();jsts.triangulate.quadedge.Vertex=function(){if(arguments.length===1){this.initFromCoordinate(arguments[0])}else{this.initFromXY(arguments[0],arguments[1])}};jsts.triangulate.quadedge.Vertex.LEFT=0;jsts.triangulate.quadedge.Vertex.RIGHT=1;jsts.triangulate.quadedge.Vertex.BEYOND=2;jsts.triangulate.quadedge.Vertex.BEHIND=3;jsts.triangulate.quadedge.Vertex.BETWEEN=4;jsts.triangulate.quadedge.Vertex.ORIGIN=5;jsts.triangulate.quadedge.Vertex.DESTINATION=6;jsts.triangulate.quadedge.Vertex.prototype.initFromXY=function(x,y){this.p=new jsts.geom.Coordinate(x,y)};jsts.triangulate.quadedge.Vertex.prototype.initFromCoordinate=function(_p){this.p=new jsts.geom.Coordinate(_p)};jsts.triangulate.quadedge.Vertex.prototype.getX=function(){return this.p.x};jsts.triangulate.quadedge.Vertex.prototype.getY=function(){return this.p.y};jsts.triangulate.quadedge.Vertex.prototype.getZ=function(){return this.p.z};jsts.triangulate.quadedge.Vertex.prototype.setZ=function(z){this.p.z=z};jsts.triangulate.quadedge.Vertex.prototype.getCoordinate=function(){return this.p};jsts.triangulate.quadedge.Vertex.prototype.toString=function(){return"POINT ("+this.p.x+" "+this.p.y+")"};jsts.triangulate.quadedge.Vertex.prototype.equals=function(){if(arguments.length===1){return this.equalsExact(arguments[0])}else{return this.equalsWithTolerance(arguments[0],arguments[1])}};jsts.triangulate.quadedge.Vertex.prototype.equalsExact=function(other){return this.p.x===other.getX()&&this.p.y===other.getY()};jsts.triangulate.quadedge.Vertex.prototype.equalsWithTolerance=function(other,tolerance){return this.p.distance(other.getCoordinate())<tolerance};jsts.triangulate.quadedge.Vertex.prototype.classify=function(p0,p1){var p2,a,b,sa;p2=this;a=p1.sub(p0);b=p2.sub(p0);sa=a.crossProduct(b);if(sa>0){return jsts.triangulate.quadedge.Vertex.LEFT}if(sa<0){return jsts.triangulate.quadedge.Vertex.RIGHT}if(a.getX()*b.getX()<0||a.getY()*b.getY()<0){return jsts.triangulate.quadedge.Vertex.BEHIND}if(a.magn()<b.magn()){return jsts.triangulate.quadedge.Vertex.BEYOND}if(p0.equals(p2)){return jsts.triangulate.quadedge.Vertex.ORIGIN}if(p1.equals(p2)){return jsts.triangulate.quadedge.Vertex.DESTINATION}return jsts.triangulate.quadedge.Vertex.BETWEEN};jsts.triangulate.quadedge.Vertex.prototype.crossProduct=function(v){return this.p.x*v.getY()-this.p.y*v.getX()};jsts.triangulate.quadedge.Vertex.prototype.dot=function(v){return this.p.x*v.getX()+this.p.y*v.getY()};jsts.triangulate.quadedge.Vertex.prototype.times=function(c){return new jsts.triangulate.quadedge.Vertex(c*this.p.x,c*this.p.y)};jsts.triangulate.quadedge.Vertex.prototype.sum=function(v){return new jsts.triangulate.quadedge.Vertex(this.p.x+v.getX(),this.p.y+v.getY())};jsts.triangulate.quadedge.Vertex.prototype.sub=function(v){return new jsts.triangulate.quadedge.Vertex(this.p.x-v.getX(),this.p.y-v.getY())};jsts.triangulate.quadedge.Vertex.prototype.magn=function(){return Math.sqrt(this.p.x*this.p.x+this.p.y*this.p.y)};jsts.triangulate.quadedge.Vertex.prototype.cross=function(){return new Vertex(this.p.y,-this.p.x)};jsts.triangulate.quadedge.Vertex.prototype.isInCircle=function(a,b,c){return jsts.triangulate.quadedge.TrianglePredicate.isInCircleRobust(a.p,b.p,c.p,this.p)};jsts.triangulate.quadedge.Vertex.prototype.isCCW=function(b,c){return(b.p.x-this.p.x)*(c.p.y-this.p.y)-(b.p.y-this.p.y)*(c.p.x-this.p.x)>0};jsts.triangulate.quadedge.Vertex.prototype.rightOf=function(e){return this.isCCW(e.dest(),e.orig())};jsts.triangulate.quadedge.Vertex.prototype.leftOf=function(e){return this.isCCW(e.orig(),e.dest())};jsts.triangulate.quadedge.Vertex.prototype.bisector=function(a,b){var dx,dy,l1,l2;dx=b.getX()-a.getX();dy=b.getY()-a.getY();l1=new jsts.algorithm.HCoordinate(a.getX()+dx/2,a.getY()+dy/2,1);l2=new jsts.algorithm.HCoordinate(a.getX()-dy+dx/2,a.getY()+dx+dy/2,1);return new jsts.algorithm.HCoordinate(l1,l2)};jsts.triangulate.quadedge.Vertex.prototype.distance=function(v1,v2){return v1.p.distance(v2.p)};jsts.triangulate.quadedge.Vertex.prototype.circumRadiusRatio=function(b,c){var x,radius,edgeLength,el;x=this.circleCenter(b,c);radius=this.distance(x,b);edgeLength=this.distance(this,b);el=this.distance(b,c);if(el<edgeLength){edgeLength=el}el=this.distance(c,this);if(el<edgeLength){edgeLength=el}return radius/edgeLength};jsts.triangulate.quadedge.Vertex.prototype.midPoint=function(a){var xm,ym;xm=(this.p.x+a.getX())/2;ym=(this.p.y+a.getY())/2;return new jsts.triangulate.quadedge.Vertex(xm,ym)};jsts.triangulate.quadedge.Vertex.prototype.circleCenter=function(b,c){var a,cab,cbc,hcc,cc;a=new jsts.triangulate.quadedge.Vertex(this.getX(),this.getY());cab=this.bisector(a,b);cbc=this.bisector(b,c);hcc=new jsts.algorithm.HCoordinate(cab,cbc);cc=null;try{cc=new jsts.triangulate.quadedge.Vertex(hcc.getX(),hcc.getY())}catch(err){}return cc};jsts.operation.valid.IsValidOp=function(parentGeometry){this.parentGeometry=parentGeometry;this.isSelfTouchingRingFormingHoleValid=false;this.validErr=null};jsts.operation.valid.IsValidOp.isValid=function(arg){if(arguments[0]instanceof jsts.geom.Coordinate){if(isNaN(arg.x)){return false}if(!isFinite(arg.x)&&!isNaN(arg.x)){return false}if(isNaN(arg.y)){return false}if(!isFinite(arg.y)&&!isNaN(arg.y)){return false}return true}else{var isValidOp=new jsts.operation.valid.IsValidOp(arg);return isValidOp.isValid()}};jsts.operation.valid.IsValidOp.findPtNotNode=function(testCoords,searchRing,graph){var searchEdge=graph.findEdge(searchRing);var eiList=searchEdge.getEdgeIntersectionList();for(var i=0;i<testCoords.length;i++){var pt=testCoords[i];if(!eiList.isIntersection(pt)){return pt}}return null};jsts.operation.valid.IsValidOp.prototype.setSelfTouchingRingFormingHoleValid=function(isValid){this.isSelfTouchingRingFormingHoleValid=isValid};jsts.operation.valid.IsValidOp.prototype.isValid=function(){this.checkValid(this.parentGeometry);return this.validErr==null};jsts.operation.valid.IsValidOp.prototype.getValidationError=function(){this.checkValid(this.parentGeometry);return this.validErr};jsts.operation.valid.IsValidOp.prototype.checkValid=function(g){this.validErr=null;if(g.isEmpty()){return}if(g instanceof jsts.geom.Point){this.checkValidPoint(g)}else if(g instanceof jsts.geom.MultiPoint){this.checkValidMultiPoint(g)}else if(g instanceof jsts.geom.LinearRing){this.checkValidLinearRing(g)}else if(g instanceof jsts.geom.LineString){this.checkValidLineString(g)}else if(g instanceof jsts.geom.Polygon){this.checkValidPolygon(g)}else if(g instanceof jsts.geom.MultiPolygon){this.checkValidMultiPolygon(g)}else if(g instanceof jsts.geom.GeometryCollection){this.checkValidGeometryCollection(g)}else{throw g.constructor}};jsts.operation.valid.IsValidOp.prototype.checkValidPoint=function(g){this.checkInvalidCoordinates(g.getCoordinates())};jsts.operation.valid.IsValidOp.prototype.checkValidMultiPoint=function(g){this.checkInvalidCoordinates(g.getCoordinates())};jsts.operation.valid.IsValidOp.prototype.checkValidLineString=function(g){this.checkInvalidCoordinates(g.getCoordinates());if(this.validErr!=null){return}var graph=new jsts.geomgraph.GeometryGraph(0,g);this.checkTooFewPoints(graph)};jsts.operation.valid.IsValidOp.prototype.checkValidLinearRing=function(g){this.checkInvalidCoordinates(g.getCoordinates());if(this.validErr!=null){return}this.checkClosedRing(g);if(this.validErr!=null){return}var graph=new jsts.geomgraph.GeometryGraph(0,g);this.checkTooFewPoints(graph);if(this.validErr!=null){return}var li=new jsts.algorithm.RobustLineIntersector;graph.computeSelfNodes(li,true);this.checkNoSelfIntersectingRings(graph)};jsts.operation.valid.IsValidOp.prototype.checkValidPolygon=function(g){this.checkInvalidCoordinates(g);if(this.validErr!=null){return}this.checkClosedRings(g);if(this.validErr!=null){return}var graph=new jsts.geomgraph.GeometryGraph(0,g);this.checkTooFewPoints(graph);if(this.validErr!=null){return}this.checkConsistentArea(graph);if(this.validErr!=null){return}if(!this.isSelfTouchingRingFormingHoleValid){this.checkNoSelfIntersectingRings(graph);if(this.validErr!=null){return}}this.checkHolesInShell(g,graph);if(this.validErr!=null){return}this.checkHolesNotNested(g,graph);if(this.validErr!=null){return}this.checkConnectedInteriors(graph)};jsts.operation.valid.IsValidOp.prototype.checkValidMultiPolygon=function(g){var il=g.getNumGeometries();for(var i=0;i<il;i++){var p=g.getGeometryN(i);this.checkInvalidCoordinates(p);if(this.validErr!=null){return}this.checkClosedRings(p);if(this.validErr!=null){return}}var graph=new jsts.geomgraph.GeometryGraph(0,g);this.checkTooFewPoints(graph);if(this.validErr!=null){return}this.checkConsistentArea(graph);if(this.validErr!=null){return}if(!this.isSelfTouchingRingFormingHoleValid){this.checkNoSelfIntersectingRings(graph);if(this.validErr!=null){return}}for(var i=0;i<g.getNumGeometries();i++){var p=g.getGeometryN(i);this.checkHolesInShell(p,graph);if(this.validErr!=null){return}}for(var i=0;i<g.getNumGeometries();i++){var p=g.getGeometryN(i);this.checkHolesNotNested(p,graph);if(this.validErr!=null){return}}this.checkShellsNotNested(g,graph);if(this.validErr!=null){return}this.checkConnectedInteriors(graph)};jsts.operation.valid.IsValidOp.prototype.checkValidGeometryCollection=function(gc){for(var i=0;i<gc.getNumGeometries();i++){var g=gc.getGeometryN(i);this.checkValid(g);if(this.validErr!=null){return}}};jsts.operation.valid.IsValidOp.prototype.checkInvalidCoordinates=function(arg){if(arg instanceof jsts.geom.Polygon){var poly=arg;this.checkInvalidCoordinates(poly.getExteriorRing().getCoordinates());if(this.validErr!=null){return}for(var i=0;i<poly.getNumInteriorRing();i++){this.checkInvalidCoordinates(poly.getInteriorRingN(i).getCoordinates());if(this.validErr!=null){return}}}else{var coords=arg;for(var i=0;i<coords.length;i++){if(!jsts.operation.valid.IsValidOp.isValid(coords[i])){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.INVALID_COORDINATE,coords[i]);return}}}};jsts.operation.valid.IsValidOp.prototype.checkClosedRings=function(poly){this.checkClosedRing(poly.getExteriorRing());if(this.validErr!=null){return}for(var i=0;i<poly.getNumInteriorRing();i++){this.checkClosedRing(poly.getInteriorRingN(i));if(this.validErr!=null){return}}};jsts.operation.valid.IsValidOp.prototype.checkClosedRing=function(ring){if(!ring.isClosed()){var pt=null;if(ring.getNumPoints()>=1){pt=ring.getCoordinateN(0)}this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.RING_NOT_CLOSED,pt)}};jsts.operation.valid.IsValidOp.prototype.checkTooFewPoints=function(graph){if(graph.hasTooFewPoints){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.TOO_FEW_POINTS,graph.getInvalidPoint());return}};jsts.operation.valid.IsValidOp.prototype.checkConsistentArea=function(graph){var cat=new jsts.operation.valid.ConsistentAreaTester(graph);var isValidArea=cat.isNodeConsistentArea();if(!isValidArea){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.SELF_INTERSECTION,cat.getInvalidPoint());return}if(cat.hasDuplicateRings()){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.DUPLICATE_RINGS,cat.getInvalidPoint())}};jsts.operation.valid.IsValidOp.prototype.checkNoSelfIntersectingRings=function(graph){for(var i=graph.getEdgeIterator();i.hasNext();){var e=i.next();this.checkNoSelfIntersectingRing(e.getEdgeIntersectionList());if(this.validErr!=null){return}}};jsts.operation.valid.IsValidOp.prototype.checkNoSelfIntersectingRing=function(eiList){var nodeSet=[];var isFirst=true;for(var i=eiList.iterator();i.hasNext();){var ei=i.next();if(isFirst){isFirst=false;continue}if(nodeSet.indexOf(ei.coord)>=0){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.RING_SELF_INTERSECTION,ei.coord);return}else{nodeSet.push(ei.coord)}}};jsts.operation.valid.IsValidOp.prototype.checkHolesInShell=function(p,graph){var shell=p.getExteriorRing();var pir=new jsts.algorithm.MCPointInRing(shell);for(var i=0;i<p.getNumInteriorRing();i++){var hole=p.getInteriorRingN(i);var holePt=jsts.operation.valid.IsValidOp.findPtNotNode(hole.getCoordinates(),shell,graph);if(holePt==null){return}var outside=!pir.isInside(holePt);if(outside){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.HOLE_OUTSIDE_SHELL,holePt);return}}};jsts.operation.valid.IsValidOp.prototype.checkHolesNotNested=function(p,graph){var nestedTester=new jsts.operation.valid.IndexedNestedRingTester(graph);for(var i=0;i<p.getNumInteriorRing();i++){var innerHole=p.getInteriorRingN(i);nestedTester.add(innerHole)}var isNonNested=nestedTester.isNonNested();if(!isNonNested){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.NESTED_HOLES,nestedTester.getNestedPoint())}};jsts.operation.valid.IsValidOp.prototype.checkShellsNotNested=function(mp,graph){for(var i=0;i<mp.getNumGeometries();i++){var p=mp.getGeometryN(i);var shell=p.getExteriorRing();for(var j=0;j<mp.getNumGeometries();j++){if(i==j){continue}var p2=mp.getGeometryN(j);this.checkShellNotNested(shell,p2,graph);if(this.validErr!=null){return}}}};jsts.operation.valid.IsValidOp.prototype.checkShellNotNested=function(shell,p,graph){var shellPts=shell.getCoordinates();var polyShell=p.getExteriorRing();var polyPts=polyShell.getCoordinates();var shellPt=jsts.operation.valid.IsValidOp.findPtNotNode(shellPts,polyShell,graph);if(shellPt==null){return}var insidePolyShell=jsts.algorithm.CGAlgorithms.isPointInRing(shellPt,polyPts);if(!insidePolyShell){return}if(p.getNumInteriorRing()<=0){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.NESTED_SHELLS,shellPt);return}var badNestedPt=null;for(var i=0;i<p.getNumInteriorRing();i++){var hole=p.getInteriorRingN(i);badNestedPt=this.checkShellInsideHole(shell,hole,graph);if(badNestedPt==null){return}}this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.NESTED_SHELLS,badNestedPt)};jsts.operation.valid.IsValidOp.prototype.checkShellInsideHole=function(shell,hole,graph){var shellPts=shell.getCoordinates();var holePts=hole.getCoordinates();var shellPt=jsts.operation.valid.IsValidOp.findPtNotNode(shellPts,hole,graph);if(shellPt!=null){var insideHole=jsts.algorithm.CGAlgorithms.isPointInRing(shellPt,holePts);if(!insideHole){return shellPt}}var holePt=jsts.operation.valid.IsValidOp.findPtNotNode(holePts,shell,graph);if(holePt!=null){var insideShell=jsts.algorithm.CGAlgorithms.isPointInRing(holePt,shellPts);if(insideShell){return holePt}return null}jsts.util.Assert.shouldNeverReachHere("points in shell and hole appear to be equal");return null};jsts.operation.valid.IsValidOp.prototype.checkConnectedInteriors=function(graph){var cit=new jsts.operation.valid.ConnectedInteriorTester(graph);if(!cit.isInteriorsConnected()){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.DISCONNECTED_INTERIOR,cit.getCoordinate())}};jsts.algorithm.RobustDeterminant=function(){};jsts.algorithm.RobustDeterminant.signOfDet2x2=function(x1,y1,x2,y2){var sign,swap,k,count;count=0;sign=1;if(x1===0||y2===0){if(y1===0||x2===0){return 0}else if(y1>0){if(x2>0){return-sign}else{return sign}}else{if(x2>0){return sign}else{return-sign}}}if(y1===0||x2===0){if(y2>0){if(x1>0){return sign}else{return-sign}}else{if(x1>0){return-sign}else{return sign}}}if(0<y1){if(0<y2){if(y1>y2){sign=-sign;swap=x1;x1=x2;x2=swap;swap=y1;y1=y2;y2=swap}}else{if(y1<=-y2){sign=-sign;x2=-x2;y2=-y2}else{swap=x1;x1=-x2;x2=swap;swap=y1;y1=-y2;y2=swap}}}else{if(0<y2){if(-y1<=y2){sign=-sign;x1=-x1;y1=-y1}else{swap=-x1;x1=x2;x2=swap;swap=-y1;y1=y2;y2=swap}}else{if(y1>=y2){x1=-x1;y1=-y1;x2=-x2;y2=-y2}else{sign=-sign;swap=-x1;x1=-x2;x2=swap;swap=-y1;y1=-y2;y2=swap}}}if(0<x1){if(0<x2){if(x1>x2){return sign}}else{return sign}}else{if(0<x2){return-sign}else{if(x1>=x2){sign=-sign;x1=-x1;x2=-x2}else{return-sign}}}while(true){count=count+1;k=Math.floor(x2/x1);x2=x2-k*x1;y2=y2-k*y1;if(y2<0){return-sign}if(y2>y1){return sign}if(x1>x2+x2){if(y1<y2+y2){return sign}}else{if(y1>y2+y2){return-sign}else{x2=x1-x2;y2=y1-y2;sign=-sign}}if(y2===0){if(x2===0){return 0}else{return-sign}}if(x2===0){return sign}k=Math.floor(x1/x2);x1=x1-k*x2;y1=y1-k*y2;if(y1<0){return sign}if(y1>y2){return-sign}if(x2>x1+x1){if(y2<y1+y1){return-sign}}else{if(y2>y1+y1){return sign}else{x1=x2-x1;y1=y2-y1;sign=-sign}}if(y1===0){if(x1===0){return 0}else{return sign}}if(x1===0){return-sign}}};jsts.algorithm.RobustDeterminant.orientationIndex=function(p1,p2,q){var dx1=p2.x-p1.x;var dy1=p2.y-p1.y;var dx2=q.x-p2.x;var dy2=q.y-p2.y;return jsts.algorithm.RobustDeterminant.signOfDet2x2(dx1,dy1,dx2,dy2)};jsts.index.quadtree.NodeBase=function(){this.subnode=new Array(4);this.subnode[0]=null;this.subnode[1]=null;this.subnode[2]=null;this.subnode[3]=null;this.items=[]};jsts.index.quadtree.NodeBase.prototype.getSubnodeIndex=function(env,centre){var subnodeIndex=-1;if(env.getMinX()>=centre.x){if(env.getMinY()>=centre.y){subnodeIndex=3}if(env.getMaxY()<=centre.y){subnodeIndex=1}}if(env.getMaxX()<=centre.x){if(env.getMinY()>=centre.y){subnodeIndex=2}if(env.getMaxY()<=centre.y){subnodeIndex=0}}return subnodeIndex};jsts.index.quadtree.NodeBase.prototype.getItems=function(){return this.items};jsts.index.quadtree.NodeBase.prototype.hasItems=function(){return this.items.length>0};jsts.index.quadtree.NodeBase.prototype.add=function(item){this.items.push(item)};jsts.index.quadtree.NodeBase.prototype.remove=function(itemEnv,item){if(!this.isSearchMatch(itemEnv)){return false}var found=false,i=0;for(i;i<4;i++){if(this.subnode[i]!==null){found=this.subnode[i].remove(itemEnv,item);if(found){if(this.subnode[i].isPrunable()){this.subnode[i]=null}break}}}if(found){return found}if(this.items.indexOf(item)!==-1){for(var i=this.items.length-1;i>=0;i--){if(this.items[i]===item){this.items.splice(i,1)}}found=true}return found};jsts.index.quadtree.NodeBase.prototype.isPrunable=function(){return!(this.hasChildren()||this.hasItems())};jsts.index.quadtree.NodeBase.prototype.hasChildren=function(){var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){return true}}return false};jsts.index.quadtree.NodeBase.prototype.isEmpty=function(){var isEmpty=true;if(this.items.length>0){isEmpty=false}var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){if(!this.subnode[i].isEmpty()){isEmpty=false}}}return isEmpty};jsts.index.quadtree.NodeBase.prototype.addAllItems=function(resultItems){resultItems=resultItems.concat(this.items);var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){resultItems=this.subnode[i].addAllItems(resultItems)}}return resultItems};jsts.index.quadtree.NodeBase.prototype.addAllItemsFromOverlapping=function(searchEnv,resultItems){if(!this.isSearchMatch(searchEnv)){return}resultItems=resultItems.concat(this.items);var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){resultItems=this.subnode[i].addAllItemsFromOverlapping(searchEnv,resultItems)}}};jsts.index.quadtree.NodeBase.prototype.visit=function(searchEnv,visitor){if(!this.isSearchMatch(searchEnv)){return}this.visitItems(searchEnv,visitor);var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){this.subnode[i].visit(searchEnv,visitor)}}};jsts.index.quadtree.NodeBase.prototype.visitItems=function(env,visitor){var i=0,il=this.items.length;for(i;i<il;i++){visitor.visitItem(this.items[i])}};jsts.index.quadtree.NodeBase.prototype.depth=function(){var maxSubDepth=0,i=0,sqd;for(i;i<4;i++){if(this.subnode[i]!==null){sqd=this.subnode[i].depth();if(sqd>maxSubDepth){maxSubDepth=sqd}}}return maxSubDepth+1};jsts.index.quadtree.NodeBase.prototype.size=function(){var subSize=0,i=0;for(i;i<4;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].size()}}return subSize+this.items.length};jsts.index.quadtree.NodeBase.prototype.getNodeCount=function(){var subSize=0,i=0;for(i;i<4;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].size()}}return subSize+1};jsts.index.quadtree.Node=function(env,level){jsts.index.quadtree.NodeBase.prototype.constructor.apply(this,arguments);this.env=env;this.level=level;this.centre=new jsts.geom.Coordinate;this.centre.x=(env.getMinX()+env.getMaxX())/2;this.centre.y=(env.getMinY()+env.getMaxY())/2};jsts.index.quadtree.Node.prototype=new jsts.index.quadtree.NodeBase;jsts.index.quadtree.Node.createNode=function(env){var key,node;key=new jsts.index.quadtree.Key(env);node=new jsts.index.quadtree.Node(key.getEnvelope(),key.getLevel());return node};jsts.index.quadtree.Node.createExpanded=function(node,addEnv){var expandEnv=new jsts.geom.Envelope(addEnv),largerNode;if(node!==null){expandEnv.expandToInclude(node.env)}largerNode=jsts.index.quadtree.Node.createNode(expandEnv);if(node!==null){largerNode.insertNode(node)}return largerNode};jsts.index.quadtree.Node.prototype.getEnvelope=function(){return this.env};jsts.index.quadtree.Node.prototype.isSearchMatch=function(searchEnv){return this.env.intersects(searchEnv)};jsts.index.quadtree.Node.prototype.getNode=function(searchEnv){var subnodeIndex=this.getSubnodeIndex(searchEnv,this.centre),node;if(subnodeIndex!==-1){node=this.getSubnode(subnodeIndex);return node.getNode(searchEnv)}else{return this}};jsts.index.quadtree.Node.prototype.find=function(searchEnv){var subnodeIndex=this.getSubnodeIndex(searchEnv,this.centre),node;if(subnodeIndex===-1){return this}if(this.subnode[subnodeIndex]!==null){node=this.subnode[subnodeIndex];return node.find(searchEnv)}return this};jsts.index.quadtree.Node.prototype.insertNode=function(node){var index=this.getSubnodeIndex(node.env,this.centre),childNode;if(node.level===this.level-1){this.subnode[index]=node}else{childNode=this.createSubnode(index);childNode.insertNode(node);this.subnode[index]=childNode}};jsts.index.quadtree.Node.prototype.getSubnode=function(index){if(this.subnode[index]===null){this.subnode[index]=this.createSubnode(index)}return this.subnode[index]};jsts.index.quadtree.Node.prototype.createSubnode=function(index){var minx=0,maxx=0,miny=0,maxy=0,sqEnv,node;switch(index){case 0:minx=this.env.getMinX();maxx=this.centre.x;miny=this.env.getMinY();maxy=this.centre.y;break;case 1:minx=this.centre.x;maxx=this.env.getMaxX();miny=this.env.getMinY();maxy=this.centre.y;break;case 2:minx=this.env.getMinX();maxx=this.centre.x;miny=this.centre.y;maxy=this.env.getMaxY();break;case 3:minx=this.centre.x;maxx=this.env.getMaxX();miny=this.centre.y;maxy=this.env.getMaxY();break}sqEnv=new jsts.geom.Envelope(minx,maxx,miny,maxy);node=new jsts.index.quadtree.Node(sqEnv,this.level-1);return node};(function(){jsts.triangulate.quadedge.QuadEdge=function(){this.rot=null;this.vertex=null;this.next=null;this.data=null};var QuadEdge=jsts.triangulate.quadedge.QuadEdge;jsts.triangulate.quadedge.QuadEdge.makeEdge=function(o,d){var q0,q1,q2,q3,base;q0=new QuadEdge;q1=new QuadEdge;q2=new QuadEdge;q3=new QuadEdge;q0.rot=q1;q1.rot=q2;q2.rot=q3;q3.rot=q0;q0.setNext(q0);q1.setNext(q3);q2.setNext(q2);q3.setNext(q1);base=q0;base.setOrig(o);base.setDest(d);return base};jsts.triangulate.quadedge.QuadEdge.connect=function(a,b){var e=QuadEdge.makeEdge(a.dest(),b.orig());QuadEdge.splice(e,a.lNext());QuadEdge.splice(e.sym(),b);return e};jsts.triangulate.quadedge.QuadEdge.splice=function(a,b){var alpha,beta,t1,t2,t3,t4;alpha=a.oNext().rot;beta=b.oNext().rot;t1=b.oNext();t2=a.oNext();t3=beta.oNext();t4=alpha.oNext();a.setNext(t1);b.setNext(t2);alpha.setNext(t3);beta.setNext(t4)};jsts.triangulate.quadedge.QuadEdge.swap=function(e){var a,b;a=e.oPrev();b=e.sym().oPrev();QuadEdge.splice(e,a);QuadEdge.splice(e.sym(),b);QuadEdge.splice(e,a.lNext());QuadEdge.splice(e.sym(),b.lNext());e.setOrig(a.dest());e.setDest(b.dest())};jsts.triangulate.quadedge.QuadEdge.prototype.getPrimary=function(){if(this.orig().getCoordinate().compareTo(this.dest().getCoordinate())<=0){return this}else{return this.sym()}};jsts.triangulate.quadedge.QuadEdge.prototype.setData=function(data){this.data=data};jsts.triangulate.quadedge.QuadEdge.prototype.getData=function(){return this.data};jsts.triangulate.quadedge.QuadEdge.prototype.delete_jsts=function(){this.rot=null};jsts.triangulate.quadedge.QuadEdge.prototype.isLive=function(){return this.rot!==null};jsts.triangulate.quadedge.QuadEdge.prototype.setNext=function(next){this.next=next};jsts.triangulate.quadedge.QuadEdge.prototype.invRot=function(){return this.rot.sym()};jsts.triangulate.quadedge.QuadEdge.prototype.sym=function(){return this.rot.rot};jsts.triangulate.quadedge.QuadEdge.prototype.oNext=function(){return this.next};jsts.triangulate.quadedge.QuadEdge.prototype.oPrev=function(){return this.rot.next.rot};jsts.triangulate.quadedge.QuadEdge.prototype.dNext=function(){return this.sym().oNext().sym()};jsts.triangulate.quadedge.QuadEdge.prototype.dPrev=function(){return this.invRot().oNext().invRot()};jsts.triangulate.quadedge.QuadEdge.prototype.lNext=function(){return this.invRot().oNext().rot};jsts.triangulate.quadedge.QuadEdge.prototype.lPrev=function(){return this.next.sym()};jsts.triangulate.quadedge.QuadEdge.prototype.rNext=function(){return this.rot.next.invRot()};jsts.triangulate.quadedge.QuadEdge.prototype.rPrev=function(){return this.sym().oNext()};jsts.triangulate.quadedge.QuadEdge.prototype.setOrig=function(o){this.vertex=o};jsts.triangulate.quadedge.QuadEdge.prototype.setDest=function(d){this.sym().setOrig(d)};jsts.triangulate.quadedge.QuadEdge.prototype.orig=function(){return this.vertex};jsts.triangulate.quadedge.QuadEdge.prototype.dest=function(){return this.sym().orig()};jsts.triangulate.quadedge.QuadEdge.prototype.getLength=function(){return this.orig().getCoordinate().distance(dest().getCoordinate())};jsts.triangulate.quadedge.QuadEdge.prototype.equalsNonOriented=function(qe){if(this.equalsOriented(qe)){return true}if(this.equalsOriented(qe.sym())){return true}return false};jsts.triangulate.quadedge.QuadEdge.prototype.equalsOriented=function(qe){if(this.orig().getCoordinate().equals2D(qe.orig().getCoordinate())&&this.dest().getCoordinate().equals2D(qe.dest().getCoordinate())){return true}return false};jsts.triangulate.quadedge.QuadEdge.prototype.toLineSegment=function(){return new jsts.geom.LineSegment(this.vertex.getCoordinate(),this.dest().getCoordinate())};jsts.triangulate.quadedge.QuadEdge.prototype.toString=function(){var p0,p1;p0=this.vertex.getCoordinate();p1=this.dest().getCoordinate();return jsts.io.WKTWriter.toLineString(p0,p1)}})();(function(){var Assert=jsts.util.Assert;jsts.geomgraph.EdgeEnd=function(edge,p0,p1,label){this.edge=edge;if(p0&&p1){this.init(p0,p1)}if(label){this.label=label||null}};jsts.geomgraph.EdgeEnd.prototype.edge=null;jsts.geomgraph.EdgeEnd.prototype.label=null;jsts.geomgraph.EdgeEnd.prototype.node=null;jsts.geomgraph.EdgeEnd.prototype.p0=null;jsts.geomgraph.EdgeEnd.prototype.p1=null;jsts.geomgraph.EdgeEnd.prototype.dx=null;jsts.geomgraph.EdgeEnd.prototype.dy=null;jsts.geomgraph.EdgeEnd.prototype.quadrant=null;jsts.geomgraph.EdgeEnd.prototype.init=function(p0,p1){this.p0=p0;this.p1=p1;this.dx=p1.x-p0.x;this.dy=p1.y-p0.y;this.quadrant=jsts.geomgraph.Quadrant.quadrant(this.dx,this.dy);Assert.isTrue(!(this.dx===0&&this.dy===0),"EdgeEnd with identical endpoints found")};jsts.geomgraph.EdgeEnd.prototype.getEdge=function(){return this.edge};jsts.geomgraph.EdgeEnd.prototype.getLabel=function(){return this.label};jsts.geomgraph.EdgeEnd.prototype.getCoordinate=function(){return this.p0};jsts.geomgraph.EdgeEnd.prototype.getDirectedCoordinate=function(){return this.p1};jsts.geomgraph.EdgeEnd.prototype.getQuadrant=function(){return this.quadrant};jsts.geomgraph.EdgeEnd.prototype.getDx=function(){return this.dx};jsts.geomgraph.EdgeEnd.prototype.getDy=function(){return this.dy};jsts.geomgraph.EdgeEnd.prototype.setNode=function(node){this.node=node};jsts.geomgraph.EdgeEnd.prototype.getNode=function(){return this.node};jsts.geomgraph.EdgeEnd.prototype.compareTo=function(e){return this.compareDirection(e)};jsts.geomgraph.EdgeEnd.prototype.compareDirection=function(e){if(this.dx===e.dx&&this.dy===e.dy)return 0;if(this.quadrant>e.quadrant)return 1;if(this.quadrant<e.quadrant)return-1;return jsts.algorithm.CGAlgorithms.computeOrientation(e.p0,e.p1,this.p1)};jsts.geomgraph.EdgeEnd.prototype.computeLabel=function(boundaryNodeRule){}
})();jsts.operation.buffer.RightmostEdgeFinder=function(){};jsts.operation.buffer.RightmostEdgeFinder.prototype.minIndex=-1;jsts.operation.buffer.RightmostEdgeFinder.prototype.minCoord=null;jsts.operation.buffer.RightmostEdgeFinder.prototype.minDe=null;jsts.operation.buffer.RightmostEdgeFinder.prototype.orientedDe=null;jsts.operation.buffer.RightmostEdgeFinder.prototype.getEdge=function(){return this.orientedDe};jsts.operation.buffer.RightmostEdgeFinder.prototype.getCoordinate=function(){return this.minCoord};jsts.operation.buffer.RightmostEdgeFinder.prototype.findEdge=function(dirEdgeList){for(var i=dirEdgeList.iterator();i.hasNext();){var de=i.next();if(!de.isForward())continue;this.checkForRightmostCoordinate(de)}jsts.util.Assert.isTrue(this.minIndex!==0||this.minCoord.equals(this.minDe.getCoordinate()),"inconsistency in rightmost processing");if(this.minIndex===0){this.findRightmostEdgeAtNode()}else{this.findRightmostEdgeAtVertex()}this.orientedDe=this.minDe;var rightmostSide=this.getRightmostSide(this.minDe,this.minIndex);if(rightmostSide==jsts.geomgraph.Position.LEFT){this.orientedDe=this.minDe.getSym()}};jsts.operation.buffer.RightmostEdgeFinder.prototype.findRightmostEdgeAtNode=function(){var node=this.minDe.getNode();var star=node.getEdges();this.minDe=star.getRightmostEdge();if(!this.minDe.isForward()){this.minDe=this.minDe.getSym();this.minIndex=this.minDe.getEdge().getCoordinates().length-1}};jsts.operation.buffer.RightmostEdgeFinder.prototype.findRightmostEdgeAtVertex=function(){var pts=this.minDe.getEdge().getCoordinates();jsts.util.Assert.isTrue(this.minIndex>0&&this.minIndex<pts.length,"rightmost point expected to be interior vertex of edge");var pPrev=pts[this.minIndex-1];var pNext=pts[this.minIndex+1];var orientation=jsts.algorithm.CGAlgorithms.computeOrientation(this.minCoord,pNext,pPrev);var usePrev=false;if(pPrev.y<this.minCoord.y&&pNext.y<this.minCoord.y&&orientation===jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE){usePrev=true}else if(pPrev.y>this.minCoord.y&&pNext.y>this.minCoord.y&&orientation===jsts.algorithm.CGAlgorithms.CLOCKWISE){usePrev=true}if(usePrev){this.minIndex=this.minIndex-1}};jsts.operation.buffer.RightmostEdgeFinder.prototype.checkForRightmostCoordinate=function(de){var coord=de.getEdge().getCoordinates();for(var i=0;i<coord.length-1;i++){if(this.minCoord===null||coord[i].x>this.minCoord.x){this.minDe=de;this.minIndex=i;this.minCoord=coord[i]}}};jsts.operation.buffer.RightmostEdgeFinder.prototype.getRightmostSide=function(de,index){var side=this.getRightmostSideOfSegment(de,index);if(side<0)side=this.getRightmostSideOfSegment(de,index-1);if(side<0){this.minCoord=null;this.checkForRightmostCoordinate(de)}return side};jsts.operation.buffer.RightmostEdgeFinder.prototype.getRightmostSideOfSegment=function(de,i){var e=de.getEdge();var coord=e.getCoordinates();if(i<0||i+1>=coord.length)return-1;if(coord[i].y==coord[i+1].y)return-1;var pos=jsts.geomgraph.Position.LEFT;if(coord[i].y<coord[i+1].y)pos=jsts.geomgraph.Position.RIGHT;return pos};(function(){jsts.triangulate.IncrementalDelaunayTriangulator=function(subdiv){this.subdiv=subdiv;this.isUsingTolerance=subdiv.getTolerance()>0};jsts.triangulate.IncrementalDelaunayTriangulator.prototype.insertSites=function(vertices){var i=0,il=vertices.length,v;for(i;i<il;i++){v=vertices[i];this.insertSite(v)}};jsts.triangulate.IncrementalDelaunayTriangulator.prototype.insertSite=function(v){var e,base,startEdge,t;e=this.subdiv.locate(v);if(this.subdiv.isVertexOfEdge(e,v)){return e}else if(this.subdiv.isOnEdge(e,v.getCoordinate())){e=e.oPrev();this.subdiv.delete_jsts(e.oNext())}base=this.subdiv.makeEdge(e.orig(),v);jsts.triangulate.quadedge.QuadEdge.splice(base,e);startEdge=base;do{base=this.subdiv.connect(e,base.sym());e=base.oPrev()}while(e.lNext()!=startEdge);do{t=e.oPrev();if(t.dest().rightOf(e)&&v.isInCircle(e.orig(),t.dest(),e.dest())){jsts.triangulate.quadedge.QuadEdge.swap(e);e=e.oPrev()}else if(e.oNext()==startEdge){return base}else{e=e.oNext().lPrev()}}while(true)}})();jsts.algorithm.CentroidArea=function(){this.basePt=null;this.triangleCent3=new jsts.geom.Coordinate;this.centSum=new jsts.geom.Coordinate;this.cg3=new jsts.geom.Coordinate};jsts.algorithm.CentroidArea.prototype.basePt=null;jsts.algorithm.CentroidArea.prototype.triangleCent3=null;jsts.algorithm.CentroidArea.prototype.areasum2=0;jsts.algorithm.CentroidArea.prototype.cg3=null;jsts.algorithm.CentroidArea.prototype.centSum=null;jsts.algorithm.CentroidArea.prototype.totalLength=0;jsts.algorithm.CentroidArea.prototype.add=function(geom){if(geom instanceof jsts.geom.Polygon){var poly=geom;this.setBasePoint(poly.getExteriorRing().getCoordinateN(0));this.add3(poly)}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPolygon){var gc=geom;for(var i=0;i<gc.getNumGeometries();i++){this.add(gc.getGeometryN(i))}}else if(geom instanceof Array){this.add2(geom)}};jsts.algorithm.CentroidArea.prototype.add2=function(ring){this.setBasePoint(ring[0]);this.addShell(ring)};jsts.algorithm.CentroidArea.prototype.getCentroid=function(){var cent=new jsts.geom.Coordinate;if(Math.abs(this.areasum2)>0){cent.x=this.cg3.x/3/this.areasum2;cent.y=this.cg3.y/3/this.areasum2}else{cent.x=this.centSum.x/this.totalLength;cent.y=this.centSum.y/this.totalLength}return cent};jsts.algorithm.CentroidArea.prototype.setBasePoint=function(basePt){if(this.basePt==null)this.basePt=basePt};jsts.algorithm.CentroidArea.prototype.add3=function(poly){this.addShell(poly.getExteriorRing().getCoordinates());for(var i=0;i<poly.getNumInteriorRing();i++){this.addHole(poly.getInteriorRingN(i).getCoordinates())}};jsts.algorithm.CentroidArea.prototype.addShell=function(pts){var isPositiveArea=!jsts.algorithm.CGAlgorithms.isCCW(pts);for(var i=0;i<pts.length-1;i++){this.addTriangle(this.basePt,pts[i],pts[i+1],isPositiveArea)}this.addLinearSegments(pts)};jsts.algorithm.CentroidArea.prototype.addHole=function(pts){var isPositiveArea=jsts.algorithm.CGAlgorithms.isCCW(pts);for(var i=0;i<pts.length-1;i++){this.addTriangle(this.basePt,pts[i],pts[i+1],isPositiveArea)}this.addLinearSegments(pts)};jsts.algorithm.CentroidArea.prototype.addTriangle=function(p0,p1,p2,isPositiveArea){var sign=isPositiveArea?1:-1;jsts.algorithm.CentroidArea.centroid3(p0,p1,p2,this.triangleCent3);var area2=jsts.algorithm.CentroidArea.area2(p0,p1,p2);this.cg3.x+=sign*area2*this.triangleCent3.x;this.cg3.y+=sign*area2*this.triangleCent3.y;this.areasum2+=sign*area2};jsts.algorithm.CentroidArea.centroid3=function(p1,p2,p3,c){c.x=p1.x+p2.x+p3.x;c.y=p1.y+p2.y+p3.y;return};jsts.algorithm.CentroidArea.area2=function(p1,p2,p3){return(p2.x-p1.x)*(p3.y-p1.y)-(p3.x-p1.x)*(p2.y-p1.y)};jsts.algorithm.CentroidArea.prototype.addLinearSegments=function(pts){for(var i=0;i<pts.length-1;i++){var segmentLen=pts[i].distance(pts[i+1]);this.totalLength+=segmentLen;var midx=(pts[i].x+pts[i+1].x)/2;this.centSum.x+=segmentLen*midx;var midy=(pts[i].y+pts[i+1].y)/2;this.centSum.y+=segmentLen*midy}};jsts.geomgraph.index.SweepLineSegment=function(edge,ptIndex){this.edge=edge;this.ptIndex=ptIndex;this.pts=edge.getCoordinates()};jsts.geomgraph.index.SweepLineSegment.prototype.edge=null;jsts.geomgraph.index.SweepLineSegment.prototype.pts=null;jsts.geomgraph.index.SweepLineSegment.prototype.ptIndex=null;jsts.geomgraph.index.SweepLineSegment.prototype.getMinX=function(){var x1=this.pts[this.ptIndex].x;var x2=this.pts[this.ptIndex+1].x;if(x1<x2){return x1}return x2};jsts.geomgraph.index.SweepLineSegment.prototype.getMaxX=function(){var x1=this.pts[this.ptIndex].x;var x2=this.pts[this.ptIndex+1].x;if(x1>x2){return x1}return x2};jsts.geomgraph.index.SweepLineSegment.prototype.computeIntersections=function(ss,si){si.addIntersections(this.edge,this.ptIndex,ss.edge,ss.ptIndex)};jsts.index.quadtree.Root=function(){jsts.index.quadtree.NodeBase.prototype.constructor.apply(this,arguments);this.origin=new jsts.geom.Coordinate(0,0)};jsts.index.quadtree.Root.prototype=new jsts.index.quadtree.NodeBase;jsts.index.quadtree.Root.prototype.insert=function(itemEnv,item){var index=this.getSubnodeIndex(itemEnv,this.origin);if(index===-1){this.add(item);return}var node=this.subnode[index];if(node===null||!node.getEnvelope().contains(itemEnv)){var largerNode=jsts.index.quadtree.Node.createExpanded(node,itemEnv);this.subnode[index]=largerNode}this.insertContained(this.subnode[index],itemEnv,item)};jsts.index.quadtree.Root.prototype.insertContained=function(tree,itemEnv,item){var isZeroX,isZeroY,node;isZeroX=jsts.index.IntervalSize.isZeroWidth(itemEnv.getMinX(),itemEnv.getMaxX());isZeroY=jsts.index.IntervalSize.isZeroWidth(itemEnv.getMinY(),itemEnv.getMaxY());if(isZeroX||isZeroY){node=tree.find(itemEnv)}else{node=tree.getNode(itemEnv)}node.add(item)};jsts.index.quadtree.Root.prototype.isSearchMatch=function(searchEnv){return true};jsts.geomgraph.index.MonotoneChainIndexer=function(){};jsts.geomgraph.index.MonotoneChainIndexer.toIntArray=function(list){var array=[];for(var i=list.iterator();i.hasNext();){var element=i.next();array.push(element)}return array};jsts.geomgraph.index.MonotoneChainIndexer.prototype.getChainStartIndices=function(pts){var start=0;var startIndexList=new javascript.util.ArrayList;startIndexList.add(start);do{var last=this.findChainEnd(pts,start);startIndexList.add(last);start=last}while(start<pts.length-1);var startIndex=jsts.geomgraph.index.MonotoneChainIndexer.toIntArray(startIndexList);return startIndex};jsts.geomgraph.index.MonotoneChainIndexer.prototype.findChainEnd=function(pts,start){var chainQuad=jsts.geomgraph.Quadrant.quadrant(pts[start],pts[start+1]);var last=start+1;while(last<pts.length){var quad=jsts.geomgraph.Quadrant.quadrant(pts[last-1],pts[last]);if(quad!=chainQuad){break}last++}return last-1};jsts.noding.IntersectionAdder=function(li){this.li=li};jsts.noding.IntersectionAdder.prototype=new jsts.noding.SegmentIntersector;jsts.noding.IntersectionAdder.constructor=jsts.noding.IntersectionAdder;jsts.noding.IntersectionAdder.isAdjacentSegments=function(i1,i2){return Math.abs(i1-i2)===1};jsts.noding.IntersectionAdder.prototype._hasIntersection=false;jsts.noding.IntersectionAdder.prototype.hasProper=false;jsts.noding.IntersectionAdder.prototype.hasProperInterior=false;jsts.noding.IntersectionAdder.prototype.hasInterior=false;jsts.noding.IntersectionAdder.prototype.properIntersectionPoint=null;jsts.noding.IntersectionAdder.prototype.li=null;jsts.noding.IntersectionAdder.prototype.isSelfIntersection=null;jsts.noding.IntersectionAdder.prototype.numIntersections=0;jsts.noding.IntersectionAdder.prototype.numInteriorIntersections=0;jsts.noding.IntersectionAdder.prototype.numProperIntersections=0;jsts.noding.IntersectionAdder.prototype.numTests=0;jsts.noding.IntersectionAdder.prototype.getLineIntersector=function(){return this.li};jsts.noding.IntersectionAdder.prototype.getProperIntersectionPoint=function(){return this.properIntersectionPoint};jsts.noding.IntersectionAdder.prototype.hasIntersection=function(){return this._hasIntersection};jsts.noding.IntersectionAdder.prototype.hasProperIntersection=function(){return this.hasProper};jsts.noding.IntersectionAdder.prototype.hasProperInteriorIntersection=function(){return this.hasProperInterior};jsts.noding.IntersectionAdder.prototype.hasInteriorIntersection=function(){return this.hasInterior};jsts.noding.IntersectionAdder.prototype.isTrivialIntersection=function(e0,segIndex0,e1,segIndex1){if(e0==e1){if(this.li.getIntersectionNum()==1){if(jsts.noding.IntersectionAdder.isAdjacentSegments(segIndex0,segIndex1))return true;if(e0.isClosed()){var maxSegIndex=e0.size()-1;if(segIndex0===0&&segIndex1===maxSegIndex||segIndex1===0&&segIndex0===maxSegIndex){return true}}}}return false};jsts.noding.IntersectionAdder.prototype.processIntersections=function(e0,segIndex0,e1,segIndex1){if(e0===e1&&segIndex0===segIndex1)return;this.numTests++;var p00=e0.getCoordinates()[segIndex0];var p01=e0.getCoordinates()[segIndex0+1];var p10=e1.getCoordinates()[segIndex1];var p11=e1.getCoordinates()[segIndex1+1];this.li.computeIntersection(p00,p01,p10,p11);if(this.li.hasIntersection()){this.numIntersections++;if(this.li.isInteriorIntersection()){this.numInteriorIntersections++;this.hasInterior=true}if(!this.isTrivialIntersection(e0,segIndex0,e1,segIndex1)){this._hasIntersection=true;e0.addIntersections(this.li,segIndex0,0);e1.addIntersections(this.li,segIndex1,1);if(this.li.isProper()){this.numProperIntersections++;this.hasProper=true;this.hasProperInterior=true}}}};jsts.noding.IntersectionAdder.prototype.isDone=function(){return false};jsts.operation.union.CascadedPolygonUnion=function(polys){this.inputPolys=polys};jsts.operation.union.CascadedPolygonUnion.union=function(polys){var op=new jsts.operation.union.CascadedPolygonUnion(polys);return op.union()};jsts.operation.union.CascadedPolygonUnion.prototype.inputPolys;jsts.operation.union.CascadedPolygonUnion.prototype.geomFactory=null;jsts.operation.union.CascadedPolygonUnion.prototype.STRTREE_NODE_CAPACITY=4;jsts.operation.union.CascadedPolygonUnion.prototype.union=function(){if(this.inputPolys.length===0){return null}this.geomFactory=this.inputPolys[0].getFactory();var index=new jsts.index.strtree.STRtree(this.STRTREE_NODE_CAPACITY);for(var i=0,l=this.inputPolys.length;i<l;i++){var item=this.inputPolys[i];index.insert(item.getEnvelopeInternal(),item)}var itemTree=index.itemsTree();var unionAll=this.unionTree(itemTree);return unionAll};jsts.operation.union.CascadedPolygonUnion.prototype.unionTree=function(geomTree){var geoms=this.reduceToGeometries(geomTree);var union=this.binaryUnion(geoms);return union};jsts.operation.union.CascadedPolygonUnion.prototype.binaryUnion=function(geoms,start,end){start=start||0;end=end||geoms.length;if(end-start<=1){var g0=this.getGeometry(geoms,start);return this.unionSafe(g0,null)}else if(end-start===2){return this.unionSafe(this.getGeometry(geoms,start),this.getGeometry(geoms,start+1))}else{var mid=parseInt((end+start)/2);var g0=this.binaryUnion(geoms,start,mid);var g1=this.binaryUnion(geoms,mid,end);return this.unionSafe(g0,g1)}};jsts.operation.union.CascadedPolygonUnion.prototype.getGeometry=function(list,index){if(index>=list.length){return null}return list[index]};jsts.operation.union.CascadedPolygonUnion.prototype.reduceToGeometries=function(geomTree){var geoms=[];for(var i=0,l=geomTree.length;i<l;i++){var o=geomTree[i],geom=null;if(o instanceof Array){geom=this.unionTree(o)}else if(o instanceof jsts.geom.Geometry){geom=o}geoms.push(geom)}return geoms};jsts.operation.union.CascadedPolygonUnion.prototype.unionSafe=function(g0,g1){if(g0===null&&g1===null){return null}if(g0===null){return g1.clone()}if(g1===null){return g0.clone()}return this.unionOptimized(g0,g1)};jsts.operation.union.CascadedPolygonUnion.prototype.unionOptimized=function(g0,g1){var g0Env=g0.getEnvelopeInternal(),g1Env=g1.getEnvelopeInternal();if(!g0Env.intersects(g1Env)){var combo=jsts.geom.util.GeometryCombiner.combine(g0,g1);return combo}if(g0.getNumGeometries<=1&&g1.getNumGeometries<=1){return this.unionActual(g0,g1)}var commonEnv=g0Env.intersection(g1Env);return this.unionUsingEnvelopeIntersection(g0,g1,commonEnv)};jsts.operation.union.CascadedPolygonUnion.prototype.unionUsingEnvelopeIntersection=function(g0,g1,common){var disjointPolys=new javascript.util.ArrayList;var g0Int=this.extractByEnvelope(common,g0,disjointPolys);var g1Int=this.extractByEnvelope(common,g1,disjointPolys);var union=this.unionActual(g0Int,g1Int);disjointPolys.add(union);var overallUnion=jsts.geom.util.GeometryCombiner.combine(disjointPolys);return overallUnion};jsts.operation.union.CascadedPolygonUnion.prototype.extractByEnvelope=function(env,geom,disjointGeoms){var intersectingGeoms=new javascript.util.ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var elem=geom.getGeometryN(i);if(elem.getEnvelopeInternal().intersects(env)){intersectingGeoms.add(elem)}else{disjointGeoms.add(elem)}}return this.geomFactory.buildGeometry(intersectingGeoms)};jsts.operation.union.CascadedPolygonUnion.prototype.unionActual=function(g0,g1){return g0.union(g1)};(function(){jsts.geom.MultiPoint=function(points,factory){this.geometries=points||[];this.factory=factory};jsts.geom.MultiPoint.prototype=new jsts.geom.GeometryCollection;jsts.geom.MultiPoint.constructor=jsts.geom.MultiPoint;jsts.geom.MultiPoint.prototype.getBoundary=function(){return this.getFactory().createGeometryCollection(null)};jsts.geom.MultiPoint.prototype.getGeometryN=function(n){return this.geometries[n]};jsts.geom.MultiPoint.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}return jsts.geom.GeometryCollection.prototype.equalsExact.call(this,other,tolerance)};jsts.geom.MultiPoint.prototype.CLASS_NAME="jsts.geom.MultiPoint"})();jsts.operation.buffer.OffsetCurveBuilder=function(precisionModel,bufParams){this.precisionModel=precisionModel;this.bufParams=bufParams};jsts.operation.buffer.OffsetCurveBuilder.prototype.distance=0;jsts.operation.buffer.OffsetCurveBuilder.prototype.precisionModel=null;jsts.operation.buffer.OffsetCurveBuilder.prototype.bufParams=null;jsts.operation.buffer.OffsetCurveBuilder.prototype.getBufferParameters=function(){return this.bufParams};jsts.operation.buffer.OffsetCurveBuilder.prototype.getLineCurve=function(inputPts,distance){this.distance=distance;if(this.distance<0&&!this.bufParams.isSingleSided())return null;if(this.distance==0)return null;var posDistance=Math.abs(this.distance);var segGen=this.getSegGen(posDistance);if(inputPts.length<=1){this.computePointCurve(inputPts[0],segGen)}else{if(this.bufParams.isSingleSided()){var isRightSide=distance<0;this.computeSingleSidedBufferCurve(inputPts,isRightSide,segGen)}else this.computeLineBufferCurve(inputPts,segGen)}var lineCoord=segGen.getCoordinates();return lineCoord};jsts.operation.buffer.OffsetCurveBuilder.prototype.getRingCurve=function(inputPts,side,distance){this.distance=distance;if(inputPts.length<=2)return this.getLineCurve(inputPts,distance);if(this.distance==0){return jsts.operation.buffer.OffsetCurveBuilder.copyCoordinates(inputPts)}var segGen=this.getSegGen(this.distance);this.computeRingBufferCurve(inputPts,side,segGen);return segGen.getCoordinates()};jsts.operation.buffer.OffsetCurveBuilder.prototype.getOffsetCurve=function(inputPts,distance){this.distance=distance;if(this.distance===0)return null;var isRightSide=this.distance<0;var posDistance=Math.abs(this.distance);var segGen=this.getSegGen(posDistance);if(inputPts.length<=1){this.computePointCurve(inputPts[0],segGen)}else{this.computeOffsetCurve(inputPts,isRightSide,segGen)}var curvePts=segGen.getCoordinates();if(isRightSide)curvePts.reverse();return curvePts};jsts.operation.buffer.OffsetCurveBuilder.copyCoordinates=function(pts){var copy=[];for(var i=0;i<pts.length;i++){copy.push(pts[i].clone())}return copy};jsts.operation.buffer.OffsetCurveBuilder.prototype.getSegGen=function(distance){return new jsts.operation.buffer.OffsetSegmentGenerator(this.precisionModel,this.bufParams,distance)};jsts.operation.buffer.OffsetCurveBuilder.SIMPLIFY_FACTOR=100;jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance=function(bufDistance){return bufDistance/jsts.operation.buffer.OffsetCurveBuilder.SIMPLIFY_FACTOR};jsts.operation.buffer.OffsetCurveBuilder.prototype.computePointCurve=function(pt,segGen){switch(this.bufParams.getEndCapStyle()){case jsts.operation.buffer.BufferParameters.CAP_ROUND:segGen.createCircle(pt);break;case jsts.operation.buffer.BufferParameters.CAP_SQUARE:segGen.createSquare(pt);break}};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeLineBufferCurve=function(inputPts,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);var simp1=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n1=simp1.length-1;segGen.initSideSegments(simp1[0],simp1[1],jsts.geomgraph.Position.LEFT);for(var i=2;i<=n1;i++){segGen.addNextSegment(simp1[i],true)}segGen.addLastSegment();segGen.addLineEndCap(simp1[n1-1],simp1[n1]);var simp2=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,-distTol);var n2=simp2.length-1;segGen.initSideSegments(simp2[n2],simp2[n2-1],jsts.geomgraph.Position.LEFT);for(var i=n2-2;i>=0;i--){segGen.addNextSegment(simp2[i],true)}segGen.addLastSegment();segGen.addLineEndCap(simp2[1],simp2[0]);segGen.closeRing()};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeSingleSidedBufferCurve=function(inputPts,isRightSide,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);if(isRightSide){segGen.addSegments(inputPts,true);var simp2=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,-distTol);var n2=simp2.length-1;segGen.initSideSegments(simp2[n2],simp2[n2-1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=n2-2;i>=0;i--){segGen.addNextSegment(simp2[i],true)}}else{segGen.addSegments(inputPts,false);var simp1=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n1=simp1.length-1;segGen.initSideSegments(simp1[0],simp1[1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=2;i<=n1;i++){segGen.addNextSegment(simp1[i],true)}}segGen.addLastSegment();segGen.closeRing()};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeOffsetCurve=function(inputPts,isRightSide,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);if(isRightSide){var simp2=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,-distTol);var n2=simp2.length-1;segGen.initSideSegments(simp2[n2],simp2[n2-1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=n2-2;i>=0;i--){segGen.addNextSegment(simp2[i],true)}}else{var simp1=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n1=simp1.length-1;segGen.initSideSegments(simp1[0],simp1[1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=2;i<=n1;i++){segGen.addNextSegment(simp1[i],true)}}segGen.addLastSegment()};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeRingBufferCurve=function(inputPts,side,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);if(side===jsts.geomgraph.Position.RIGHT)distTol=-distTol;var simp=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n=simp.length-1;segGen.initSideSegments(simp[n-1],simp[0],side);for(var i=1;i<=n;i++){var addStartPoint=i!==1;segGen.addNextSegment(simp[i],addStartPoint)}segGen.closeRing()};(function(){var HotPixelSnapAction=function(hotPixel,parentEdge,vertexIndex){this.hotPixel=hotPixel;this.parentEdge=parentEdge;this.vertexIndex=vertexIndex};HotPixelSnapAction.prototype=new jsts.index.chain.MonotoneChainSelectAction;HotPixelSnapAction.constructor=HotPixelSnapAction;HotPixelSnapAction.prototype.hotPixel=null;HotPixelSnapAction.prototype.parentEdge=null;HotPixelSnapAction.prototype.vertexIndex=null;HotPixelSnapAction.prototype._isNodeAdded=false;HotPixelSnapAction.prototype.isNodeAdded=function(){return this._isNodeAdded};HotPixelSnapAction.prototype.select=function(mc,startIndex){var ss=mc.getContext();if(this.parentEdge!==null){if(ss===this.parentEdge&&startIndex===this.vertexIndex)return}this._isNodeAdded=this.hotPixel.addSnappedNode(ss,startIndex)};jsts.noding.snapround.MCIndexPointSnapper=function(index){this.index=index};jsts.noding.snapround.MCIndexPointSnapper.prototype.index=null;jsts.noding.snapround.MCIndexPointSnapper.prototype.snap=function(hotPixel,parentEdge,vertexIndex){if(arguments.length===1){this.snap2.apply(this,arguments);return}var pixelEnv=hotPixel.getSafeEnvelope();var hotPixelSnapAction=new HotPixelSnapAction(hotPixel,parentEdge,vertexIndex);this.index.query(pixelEnv,{visitItem:function(testChain){testChain.select(pixelEnv,hotPixelSnapAction)}});return hotPixelSnapAction.isNodeAdded()};jsts.noding.snapround.MCIndexPointSnapper.prototype.snap2=function(hotPixel){return this.snap(hotPixel,null,-1)}})();(function(){var NodeBase=function(){this.items=new javascript.util.ArrayList;this.subnode=[null,null]};NodeBase.getSubnodeIndex=function(interval,centre){var subnodeIndex=-1;if(interval.min>=centre){subnodeIndex=1}if(interval.max<=centre){subnodeIndex=0}return subnodeIndex};NodeBase.prototype.getItems=function(){return this.items};NodeBase.prototype.add=function(item){this.items.add(item)};NodeBase.prototype.addAllItems=function(items){items.addAll(this.items);var i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){this.subnode[i].addAllItems(items)}}return items};NodeBase.prototype.addAllItemsFromOverlapping=function(interval,resultItems){if(interval!==null&&!this.isSearchMatch(interval)){return}resultItems.addAll(this.items);if(this.subnode[0]!==null){this.subnode[0].addAllItemsFromOverlapping(interval,resultItems)}if(this.subnode[1]!==null){this.subnode[1].addAllItemsFromOverlapping(interval,resultItems)}};NodeBase.prototype.remove=function(itemInterval,item){if(!this.isSearchMatch(itemInterval)){return false}var found=false,i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){found=this.subnode[i].remove(itemInterval,item);if(found){if(this.subnode[i].isPrunable()){this.subnode[i]=null}break}}}if(found){return found}found=this.items.remove(item);return found};NodeBase.prototype.isPrunable=function(){return!(this.hasChildren()||this.hasItems())};NodeBase.prototype.hasChildren=function(){var i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){return true}}return false};NodeBase.prototype.hasItems=function(){return!this.items.isEmpty()};NodeBase.prototype.depth=function(){var maxSubDepth=0,i=0,il=2,sqd;for(i;i<il;i++){if(this.subnode[i]!==null){sqd=this.subnode[i].depth();if(sqd>maxSubDepth){maxSubDepth=sqd}}}return maxSubDepth+1};NodeBase.prototype.size=function(){var subSize=0,i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].size()}}return subSize+this.items.size()};NodeBase.prototype.nodeSize=function(){var subSize=0,i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].nodeSize()}}return subSize+1};jsts.index.bintree.NodeBase=NodeBase})();(function(){var NodeBase=jsts.index.bintree.NodeBase;var Key=jsts.index.bintree.Key;var Interval=jsts.index.bintree.Interval;var Node=function(interval,level){this.items=new javascript.util.ArrayList;this.subnode=[null,null];this.interval=interval;this.level=level;this.centre=(interval.getMin()+interval.getMax())/2};Node.prototype=new NodeBase;Node.constructor=Node;Node.createNode=function(itemInterval){var key,node;key=new Key(itemInterval);node=new Node(key.getInterval(),key.getLevel());return node};Node.createExpanded=function(node,addInterval){var expandInt,largerNode;expandInt=new Interval(addInterval);if(node!==null){expandInt.expandToInclude(node.interval)}largerNode=Node.createNode(expandInt);if(node!==null){largerNode.insert(node)}return largerNode};Node.prototype.getInterval=function(){return this.interval};Node.prototype.isSearchMatch=function(itemInterval){return itemInterval.overlaps(this.interval)};Node.prototype.getNode=function(searchInterval){var subnodeIndex=NodeBase.getSubnodeIndex(searchInterval,this.centre),node;if(subnodeIndex!=-1){node=this.getSubnode(subnodeIndex);return node.getNode(searchInterval)}else{return this}};Node.prototype.find=function(searchInterval){var subnodeIndex=NodeBase.getSubnodeIndex(searchInterval,this.centre),node;if(subnodeIndex===-1){return this}if(this.subnode[subnodeIndex]!==null){node=this.subnode[subnodeIndex];return node.find(searchInterval)}return this};Node.prototype.insert=function(node){var index=NodeBase.getSubnodeIndex(node.interval,this.centre),childNode;if(node.level===this.level-1){this.subnode[index]=node}else{childNode=this.createSubnode(index);childNode.insert(node);this.subnode[index]=childNode}};Node.prototype.getSubnode=function(index){if(this.subnode[index]===null){this.subnode[index]=this.createSubnode(index)}return this.subnode[index]};Node.prototype.createSubnode=function(index){var min,max,subInt,node;min=0;max=0;switch(index){case 0:min=this.interval.getMin();max=this.centre;break;case 1:min=this.centre;max=this.interval.getMax();break}subInt=new Interval(min,max);node=new Node(subInt,this.level-1);return node};jsts.index.bintree.Node=Node})();(function(){var Node=jsts.index.bintree.Node;var NodeBase=jsts.index.bintree.NodeBase;var Root=function(){this.subnode=[null,null];this.items=new javascript.util.ArrayList};Root.prototype=new jsts.index.bintree.NodeBase;Root.constructor=Root;Root.origin=0;Root.prototype.insert=function(itemInterval,item){var index=NodeBase.getSubnodeIndex(itemInterval,Root.origin),node,largerNode;if(index===-1){this.add(item);return}node=this.subnode[index];if(node===null||!node.getInterval().contains(itemInterval)){largerNode=Node.createExpanded(node,itemInterval);this.subnode[index]=largerNode}this.insertContained(this.subnode[index],itemInterval,item)};Root.prototype.insertContained=function(tree,itemInterval,item){var isZeroArea,node;isZeroArea=jsts.index.IntervalSize.isZeroWidth(itemInterval.getMin(),itemInterval.getMax());node=isZeroArea?tree.find(itemInterval):tree.getNode(itemInterval);node.add(item)};Root.prototype.isSearchMatch=function(interval){return true};jsts.index.bintree.Root=Root})();jsts.geomgraph.Quadrant=function(){};jsts.geomgraph.Quadrant.NE=0;jsts.geomgraph.Quadrant.NW=1;jsts.geomgraph.Quadrant.SW=2;jsts.geomgraph.Quadrant.SE=3;jsts.geomgraph.Quadrant.quadrant=function(dx,dy){if(dx instanceof jsts.geom.Coordinate){return jsts.geomgraph.Quadrant.quadrant2.apply(this,arguments)}if(dx===0&&dy===0)throw new jsts.error.IllegalArgumentError("Cannot compute the quadrant for point ( "+dx+", "+dy+" )");if(dx>=0){if(dy>=0)return jsts.geomgraph.Quadrant.NE;else return jsts.geomgraph.Quadrant.SE}else{if(dy>=0)return jsts.geomgraph.Quadrant.NW;else return jsts.geomgraph.Quadrant.SW}};jsts.geomgraph.Quadrant.quadrant2=function(p0,p1){if(p1.x===p0.x&&p1.y===p0.y)throw new jsts.error.IllegalArgumentError("Cannot compute the quadrant for two identical points "+p0);if(p1.x>=p0.x){if(p1.y>=p0.y)return jsts.geomgraph.Quadrant.NE;else return jsts.geomgraph.Quadrant.SE}else{if(p1.y>=p0.y)return jsts.geomgraph.Quadrant.NW;else return jsts.geomgraph.Quadrant.SW}};jsts.geomgraph.Quadrant.isOpposite=function(quad1,quad2){if(quad1===quad2)return false;var diff=(quad1-quad2+4)%4;if(diff===2)return true;return false};jsts.geomgraph.Quadrant.commonHalfPlane=function(quad1,quad2){if(quad1===quad2)return quad1;var diff=(quad1-quad2+4)%4;if(diff===2)return-1;var min=quad1<quad2?quad1:quad2;var max=quad1>quad2?quad1:quad2;if(min===0&&max===3)return 3;return min};jsts.geomgraph.Quadrant.isInHalfPlane=function(quad,halfPlane){if(halfPlane===jsts.geomgraph.Quadrant.SE){return quad===jsts.geomgraph.Quadrant.SE||quad===jsts.geomgraph.Quadrant.SW}return quad===halfPlane||quad===halfPlane+1};jsts.geomgraph.Quadrant.isNorthern=function(quad){return quad===jsts.geomgraph.Quadrant.NE||quad===jsts.geomgraph.Quadrant.NW};jsts.operation.valid.ConsistentAreaTester=function(geomGraph){this.geomGraph=geomGraph;this.li=new jsts.algorithm.RobustLineIntersector;this.nodeGraph=new jsts.operation.relate.RelateNodeGraph;this.invalidPoint=null};jsts.operation.valid.ConsistentAreaTester.prototype.getInvalidPoint=function(){return this.invalidPoint};jsts.operation.valid.ConsistentAreaTester.prototype.isNodeConsistentArea=function(){var intersector=this.geomGraph.computeSelfNodes(this.li,true);if(intersector.hasProperIntersection()){this.invalidPoint=intersector.getProperIntersectionPoint();return false}this.nodeGraph.build(this.geomGraph);return this.isNodeEdgeAreaLabelsConsistent()};jsts.operation.valid.ConsistentAreaTester.prototype.isNodeEdgeAreaLabelsConsistent=function(){for(var nodeIt=this.nodeGraph.getNodeIterator();nodeIt.hasNext();){var node=nodeIt.next();if(!node.getEdges().isAreaLabelsConsistent(this.geomGraph)){this.invalidPoint=node.getCoordinate().clone();return false}}return true};jsts.operation.valid.ConsistentAreaTester.prototype.hasDuplicateRings=function(){for(var nodeIt=this.nodeGraph.getNodeIterator();nodeIt.hasNext();){var node=nodeIt.next();
for(var i=node.getEdges().iterator();i.hasNext();){var eeb=i.next();if(eeb.getEdgeEnds().length>1){invalidPoint=eeb.getEdge().getCoordinate(0);return true}}}return false};jsts.operation.relate.RelateNode=function(coord,edges){jsts.geomgraph.Node.apply(this,arguments)};jsts.operation.relate.RelateNode.prototype=new jsts.geomgraph.Node;jsts.operation.relate.RelateNode.prototype.computeIM=function(im){im.setAtLeastIfValid(this.label.getLocation(0),this.label.getLocation(1),0)};jsts.operation.relate.RelateNode.prototype.updateIMFromEdges=function(im){this.edges.updateIM(im)};(function(){var Location=jsts.geom.Location;var Position=jsts.geomgraph.Position;var EdgeEnd=jsts.geomgraph.EdgeEnd;jsts.geomgraph.DirectedEdge=function(edge,isForward){EdgeEnd.call(this,edge);this.depth=[0,-999,-999];this._isForward=isForward;if(isForward){this.init(edge.getCoordinate(0),edge.getCoordinate(1))}else{var n=edge.getNumPoints()-1;this.init(edge.getCoordinate(n),edge.getCoordinate(n-1))}this.computeDirectedLabel()};jsts.geomgraph.DirectedEdge.prototype=new EdgeEnd;jsts.geomgraph.DirectedEdge.constructor=jsts.geomgraph.DirectedEdge;jsts.geomgraph.DirectedEdge.depthFactor=function(currLocation,nextLocation){if(currLocation===Location.EXTERIOR&&nextLocation===Location.INTERIOR)return 1;else if(currLocation===Location.INTERIOR&&nextLocation===Location.EXTERIOR)return-1;return 0};jsts.geomgraph.DirectedEdge.prototype._isForward=null;jsts.geomgraph.DirectedEdge.prototype._isInResult=false;jsts.geomgraph.DirectedEdge.prototype._isVisited=false;jsts.geomgraph.DirectedEdge.prototype.sym=null;jsts.geomgraph.DirectedEdge.prototype.next=null;jsts.geomgraph.DirectedEdge.prototype.nextMin=null;jsts.geomgraph.DirectedEdge.prototype.edgeRing=null;jsts.geomgraph.DirectedEdge.prototype.minEdgeRing=null;jsts.geomgraph.DirectedEdge.prototype.depth=null;jsts.geomgraph.DirectedEdge.prototype.getEdge=function(){return this.edge};jsts.geomgraph.DirectedEdge.prototype.setInResult=function(isInResult){this._isInResult=isInResult};jsts.geomgraph.DirectedEdge.prototype.isInResult=function(){return this._isInResult};jsts.geomgraph.DirectedEdge.prototype.isVisited=function(){return this._isVisited};jsts.geomgraph.DirectedEdge.prototype.setVisited=function(isVisited){this._isVisited=isVisited};jsts.geomgraph.DirectedEdge.prototype.setEdgeRing=function(edgeRing){this.edgeRing=edgeRing};jsts.geomgraph.DirectedEdge.prototype.getEdgeRing=function(){return this.edgeRing};jsts.geomgraph.DirectedEdge.prototype.setMinEdgeRing=function(minEdgeRing){this.minEdgeRing=minEdgeRing};jsts.geomgraph.DirectedEdge.prototype.getMinEdgeRing=function(){return this.minEdgeRing};jsts.geomgraph.DirectedEdge.prototype.getDepth=function(position){return this.depth[position]};jsts.geomgraph.DirectedEdge.prototype.setDepth=function(position,depthVal){if(this.depth[position]!==-999){if(this.depth[position]!==depthVal)throw new jsts.error.TopologyError("assigned depths do not match",this.getCoordinate())}this.depth[position]=depthVal};jsts.geomgraph.DirectedEdge.prototype.getDepthDelta=function(){var depthDelta=this.edge.getDepthDelta();if(!this._isForward)depthDelta=-depthDelta;return depthDelta};jsts.geomgraph.DirectedEdge.prototype.setVisitedEdge=function(isVisited){this.setVisited(isVisited);this.sym.setVisited(isVisited)};jsts.geomgraph.DirectedEdge.prototype.getSym=function(){return this.sym};jsts.geomgraph.DirectedEdge.prototype.isForward=function(){return this._isForward};jsts.geomgraph.DirectedEdge.prototype.setSym=function(de){this.sym=de};jsts.geomgraph.DirectedEdge.prototype.getNext=function(){return this.next};jsts.geomgraph.DirectedEdge.prototype.setNext=function(next){this.next=next};jsts.geomgraph.DirectedEdge.prototype.getNextMin=function(){return this.nextMin};jsts.geomgraph.DirectedEdge.prototype.setNextMin=function(nextMin){this.nextMin=nextMin};jsts.geomgraph.DirectedEdge.prototype.isLineEdge=function(){var isLine=this.label.isLine(0)||this.label.isLine(1);var isExteriorIfArea0=!this.label.isArea(0)||this.label.allPositionsEqual(0,Location.EXTERIOR);var isExteriorIfArea1=!this.label.isArea(1)||this.label.allPositionsEqual(1,Location.EXTERIOR);return isLine&&isExteriorIfArea0&&isExteriorIfArea1};jsts.geomgraph.DirectedEdge.prototype.isInteriorAreaEdge=function(){var isInteriorAreaEdge=true;for(var i=0;i<2;i++){if(!(this.label.isArea(i)&&this.label.getLocation(i,Position.LEFT)===Location.INTERIOR&&this.label.getLocation(i,Position.RIGHT)===Location.INTERIOR)){isInteriorAreaEdge=false}}return isInteriorAreaEdge};jsts.geomgraph.DirectedEdge.prototype.computeDirectedLabel=function(){this.label=new jsts.geomgraph.Label(this.edge.getLabel());if(!this._isForward)this.label.flip()};jsts.geomgraph.DirectedEdge.prototype.setEdgeDepths=function(position,depth){var depthDelta=this.getEdge().getDepthDelta();if(!this._isForward)depthDelta=-depthDelta;var directionFactor=1;if(position===Position.LEFT)directionFactor=-1;var oppositePos=Position.opposite(position);var delta=depthDelta*directionFactor;var oppositeDepth=depth+delta;this.setDepth(position,depth);this.setDepth(oppositePos,oppositeDepth)}})();jsts.operation.distance.DistanceOp=function(g0,g1,terminateDistance){this.ptLocator=new jsts.algorithm.PointLocator;this.geom=[];this.geom[0]=g0;this.geom[1]=g1;this.terminateDistance=terminateDistance};jsts.operation.distance.DistanceOp.prototype.geom=null;jsts.operation.distance.DistanceOp.prototype.terminateDistance=0;jsts.operation.distance.DistanceOp.prototype.ptLocator=null;jsts.operation.distance.DistanceOp.prototype.minDistanceLocation=null;jsts.operation.distance.DistanceOp.prototype.minDistance=Number.MAX_VALUE;jsts.operation.distance.DistanceOp.distance=function(g0,g1){var distOp=new jsts.operation.distance.DistanceOp(g0,g1,0);return distOp.distance()};jsts.operation.distance.DistanceOp.isWithinDistance=function(g0,g1,distance){var distOp=new jsts.operation.distance.DistanceOp(g0,g1,distance);return distOp.distance()<=distance};jsts.operation.distance.DistanceOp.nearestPoints=function(g0,g1){var distOp=new jsts.operation.distance.DistanceOp(g0,g1,0);return distOp.nearestPoints()};jsts.operation.distance.DistanceOp.prototype.distance=function(){if(this.geom[0]===null||this.geom[1]===null)throw new jsts.error.IllegalArgumentError("null geometries are not supported");if(this.geom[0].isEmpty()||this.geom[1].isEmpty())return 0;this.computeMinDistance();return this.minDistance};jsts.operation.distance.DistanceOp.prototype.nearestPoints=function(){this.computeMinDistance();var nearestPts=[this.minDistanceLocation[0].getCoordinate(),this.minDistanceLocation[1].getCoordinate()];return nearestPts};jsts.operation.distance.DistanceOp.prototype.nearestLocations=function(){this.computeMinDistance();return this.minDistanceLocation};jsts.operation.distance.DistanceOp.prototype.updateMinDistance=function(locGeom,flip){if(locGeom[0]===null)return;if(flip){this.minDistanceLocation[0]=locGeom[1];this.minDistanceLocation[1]=locGeom[0]}else{this.minDistanceLocation[0]=locGeom[0];this.minDistanceLocation[1]=locGeom[1]}};jsts.operation.distance.DistanceOp.prototype.computeMinDistance=function(){if(arguments.length>0){this.computeMinDistance2.apply(this,arguments);return}if(this.minDistanceLocation!==null)return;this.minDistanceLocation=[];this.computeContainmentDistance();if(this.minDistance<=this.terminateDistance)return;this.computeFacetDistance()};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance=function(){if(arguments.length===2){this.computeContainmentDistance2.apply(this,arguments);return}else if(arguments.length===3&&!arguments[0]instanceof jsts.operation.distance.GeometryLocation){this.computeContainmentDistance3.apply(this,arguments);return}else if(arguments.length===3){this.computeContainmentDistance4.apply(this,arguments);return}var locPtPoly=[];this.computeContainmentDistance2(0,locPtPoly);if(this.minDistance<=this.terminateDistance)return;this.computeContainmentDistance2(1,locPtPoly)};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance2=function(polyGeomIndex,locPtPoly){var locationsIndex=1-polyGeomIndex;var polys=jsts.geom.util.PolygonExtracter.getPolygons(this.geom[polyGeomIndex]);if(polys.length>0){var insideLocs=jsts.operation.distance.ConnectedElementLocationFilter.getLocations(this.geom[locationsIndex]);this.computeContainmentDistance3(insideLocs,polys,locPtPoly);if(this.minDistance<=this.terminateDistance){this.minDistanceLocation[locationsIndex]=locPtPoly[0];this.minDistanceLocation[polyGeomIndex]=locPtPoly[1];return}}};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance3=function(locs,polys,locPtPoly){for(var i=0;i<locs.length;i++){var loc=locs[i];for(var j=0;j<polys.length;j++){this.computeContainmentDistance4(loc,polys[j],locPtPoly);if(this.minDistance<=this.terminateDistance)return}}};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance4=function(ptLoc,poly,locPtPoly){var pt=ptLoc.getCoordinate();if(jsts.geom.Location.EXTERIOR!==this.ptLocator.locate(pt,poly)){this.minDistance=0;locPtPoly[0]=ptLoc;locPtPoly[1]=new jsts.operation.distance.GeometryLocation(poly,pt);return}};jsts.operation.distance.DistanceOp.prototype.computeFacetDistance=function(){var locGeom=[];var lines0=jsts.geom.util.LinearComponentExtracter.getLines(this.geom[0]);var lines1=jsts.geom.util.LinearComponentExtracter.getLines(this.geom[1]);var pts0=jsts.geom.util.PointExtracter.getPoints(this.geom[0]);var pts1=jsts.geom.util.PointExtracter.getPoints(this.geom[1]);this.computeMinDistanceLines(lines0,lines1,locGeom);this.updateMinDistance(locGeom,false);if(this.minDistance<=this.terminateDistance)return;locGeom[0]=null;locGeom[1]=null;this.computeMinDistanceLinesPoints(lines0,pts1,locGeom);this.updateMinDistance(locGeom,false);if(this.minDistance<=this.terminateDistance)return;locGeom[0]=null;locGeom[1]=null;this.computeMinDistanceLinesPoints(lines1,pts0,locGeom);this.updateMinDistance(locGeom,true);if(this.minDistance<=this.terminateDistance)return;locGeom[0]=null;locGeom[1]=null;this.computeMinDistancePoints(pts0,pts1,locGeom);this.updateMinDistance(locGeom,false)};jsts.operation.distance.DistanceOp.prototype.computeMinDistanceLines=function(lines0,lines1,locGeom){for(var i=0;i<lines0.length;i++){var line0=lines0[i];for(var j=0;j<lines1.length;j++){var line1=lines1[j];this.computeMinDistance(line0,line1,locGeom);if(this.minDistance<=this.terminateDistance)return}}};jsts.operation.distance.DistanceOp.prototype.computeMinDistancePoints=function(points0,points1,locGeom){for(var i=0;i<points0.length;i++){var pt0=points0[i];for(var j=0;j<points1.length;j++){var pt1=points1[j];var dist=pt0.getCoordinate().distance(pt1.getCoordinate());if(dist<this.minDistance){this.minDistance=dist;locGeom[0]=new jsts.operation.distance.GeometryLocation(pt0,0,pt0.getCoordinate());locGeom[1]=new jsts.operation.distance.GeometryLocation(pt1,0,pt1.getCoordinate())}if(this.minDistance<=this.terminateDistance)return}}};jsts.operation.distance.DistanceOp.prototype.computeMinDistanceLinesPoints=function(lines,points,locGeom){for(var i=0;i<lines.length;i++){var line=lines[i];for(var j=0;j<points.length;j++){var pt=points[j];this.computeMinDistance(line,pt,locGeom);if(this.minDistance<=this.terminateDistance)return}}};jsts.operation.distance.DistanceOp.prototype.computeMinDistance2=function(line0,line1,locGeom){if(line1 instanceof jsts.geom.Point){this.computeMinDistance3(line0,line1,locGeom);return}if(line0.getEnvelopeInternal().distance(line1.getEnvelopeInternal())>this.minDistance){return}var coord0=line0.getCoordinates();var coord1=line1.getCoordinates();for(var i=0;i<coord0.length-1;i++){for(var j=0;j<coord1.length-1;j++){var dist=jsts.algorithm.CGAlgorithms.distanceLineLine(coord0[i],coord0[i+1],coord1[j],coord1[j+1]);if(dist<this.minDistance){this.minDistance=dist;var seg0=new jsts.geom.LineSegment(coord0[i],coord0[i+1]);var seg1=new jsts.geom.LineSegment(coord1[j],coord1[j+1]);var closestPt=seg0.closestPoints(seg1);locGeom[0]=new jsts.operation.distance.GeometryLocation(line0,i,closestPt[0]);locGeom[1]=new jsts.operation.distance.GeometryLocation(line1,j,closestPt[1])}if(this.minDistance<=this.terminateDistance){return}}}};jsts.operation.distance.DistanceOp.prototype.computeMinDistance3=function(line,pt,locGeom){if(line.getEnvelopeInternal().distance(pt.getEnvelopeInternal())>this.minDistance){return}var coord0=line.getCoordinates();var coord=pt.getCoordinate();for(var i=0;i<coord0.length-1;i++){var dist=jsts.algorithm.CGAlgorithms.distancePointLine(coord,coord0[i],coord0[i+1]);if(dist<this.minDistance){this.minDistance=dist;var seg=new jsts.geom.LineSegment(coord0[i],coord0[i+1]);var segClosestPoint=seg.closestPoint(coord);locGeom[0]=new jsts.operation.distance.GeometryLocation(line,i,segClosestPoint);locGeom[1]=new jsts.operation.distance.GeometryLocation(pt,0,coord)}if(this.minDistance<=this.terminateDistance){return}}};jsts.index.strtree.SIRtree=function(nodeCapacity){nodeCapacity=nodeCapacity||10;jsts.index.strtree.AbstractSTRtree.call(this,nodeCapacity)};jsts.index.strtree.SIRtree.prototype=new jsts.index.strtree.AbstractSTRtree;jsts.index.strtree.SIRtree.constructor=jsts.index.strtree.SIRtree;jsts.index.strtree.SIRtree.prototype.comperator={compare:function(o1,o2){return o1.getBounds().getCentre()-o2.getBounds().getCentre()}};jsts.index.strtree.SIRtree.prototype.intersectionOp={intersects:function(aBounds,bBounds){return aBounds.intersects(bBounds)}};jsts.index.strtree.SIRtree.prototype.createNode=function(level){var AbstractNode=function(level){jsts.index.strtree.AbstractNode.apply(this,arguments)};AbstractNode.prototype=new jsts.index.strtree.AbstractNode;AbstractNode.constructor=AbstractNode;AbstractNode.prototype.computeBounds=function(){var bounds=null,childBoundables=this.getChildBoundables(),childBoundable;for(var i=0,l=childBoundables.length;i<l;i++){childBoundable=childBoundables[i];if(bounds===null){bounds=new jsts.index.strtree.Interval(childBoundable.getBounds())}else{bounds.expandToInclude(childBoundable.getBounds())}}return bounds};return AbstractNode};jsts.index.strtree.SIRtree.prototype.insert=function(x1,x2,item){jsts.index.strtree.AbstractSTRtree.prototype.insert(new jsts.index.strtree.Interval(Math.min(x1,x2),Math.max(x1,x2)),item)};jsts.index.strtree.SIRtree.prototype.query=function(x1,x2){x2=x2||x1;jsts.index.strtree.AbstractSTRtree.prototype.query(new jsts.index.strtree.Interval(Math.min(x1,x2),Math.max(x1,x2)))};jsts.index.strtree.SIRtree.prototype.getIntersectsOp=function(){return this.intersectionOp};jsts.index.strtree.SIRtree.prototype.getComparator=function(){return this.comperator};(function(){var Location=jsts.geom.Location;jsts.operation.relate.RelateNodeGraph=function(){this.nodes=new jsts.geomgraph.NodeMap(new jsts.operation.relate.RelateNodeFactory)};jsts.operation.relate.RelateNodeGraph.prototype.nodes=null;jsts.operation.relate.RelateNodeGraph.prototype.build=function(geomGraph){this.computeIntersectionNodes(geomGraph,0);this.copyNodesAndLabels(geomGraph,0);var eeBuilder=new jsts.operation.relate.EdgeEndBuilder;var eeList=eeBuilder.computeEdgeEnds(geomGraph.getEdgeIterator());this.insertEdgeEnds(eeList)};jsts.operation.relate.RelateNodeGraph.prototype.computeIntersectionNodes=function(geomGraph,argIndex){for(var edgeIt=geomGraph.getEdgeIterator();edgeIt.hasNext();){var e=edgeIt.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();var n=this.nodes.addNode(ei.coord);if(eLoc===Location.BOUNDARY)n.setLabelBoundary(argIndex);else{if(n.getLabel().isNull(argIndex))n.setLabel(argIndex,Location.INTERIOR)}}}};jsts.operation.relate.RelateNodeGraph.prototype.copyNodesAndLabels=function(geomGraph,argIndex){for(var nodeIt=geomGraph.getNodeIterator();nodeIt.hasNext();){var graphNode=nodeIt.next();var newNode=this.nodes.addNode(graphNode.getCoordinate());newNode.setLabel(argIndex,graphNode.getLabel().getLocation(argIndex))}};jsts.operation.relate.RelateNodeGraph.prototype.insertEdgeEnds=function(ee){for(var i=ee.iterator();i.hasNext();){var e=i.next();this.nodes.add(e)}};jsts.operation.relate.RelateNodeGraph.prototype.getNodeIterator=function(){return this.nodes.iterator()}})();(function(){var Location=jsts.geom.Location;var Position=jsts.geomgraph.Position;jsts.geomgraph.Depth=function(){this.depth=[[],[]];for(var i=0;i<2;i++){for(var j=0;j<3;j++){this.depth[i][j]=jsts.geomgraph.Depth.NULL_VALUE}}};jsts.geomgraph.Depth.NULL_VALUE=-1;jsts.geomgraph.Depth.depthAtLocation=function(location){if(location===Location.EXTERIOR)return 0;if(location===Location.INTERIOR)return 1;return jsts.geomgraph.Depth.NULL_VALUE};jsts.geomgraph.Depth.prototype.depth=null;jsts.geomgraph.Depth.prototype.getDepth=function(geomIndex,posIndex){return this.depth[geomIndex][posIndex]};jsts.geomgraph.Depth.prototype.setDepth=function(geomIndex,posIndex,depthValue){this.depth[geomIndex][posIndex]=depthValue};jsts.geomgraph.Depth.prototype.getLocation=function(geomIndex,posIndex){if(this.depth[geomIndex][posIndex]<=0)return Location.EXTERIOR;return Location.INTERIOR};jsts.geomgraph.Depth.prototype.add=function(geomIndex,posIndex,location){if(location===Location.INTERIOR)this.depth[geomIndex][posIndex]++};jsts.geomgraph.Depth.prototype.isNull=function(){if(arguments.length>0){return this.isNull2.apply(this,arguments)}for(var i=0;i<2;i++){for(var j=0;j<3;j++){if(this.depth[i][j]!==jsts.geomgraph.Depth.NULL_VALUE)return false}}return true};jsts.geomgraph.Depth.prototype.isNull2=function(geomIndex){if(arguments.length>1){return this.isNull3.apply(this,arguments)}return this.depth[geomIndex][1]==jsts.geomgraph.Depth.NULL_VALUE};jsts.geomgraph.Depth.prototype.isNull3=function(geomIndex,posIndex){return this.depth[geomIndex][posIndex]==jsts.geomgraph.Depth.NULL_VALUE};jsts.geomgraph.Depth.prototype.add=function(lbl){for(var i=0;i<2;i++){for(var j=1;j<3;j++){var loc=lbl.getLocation(i,j);if(loc===Location.EXTERIOR||loc===Location.INTERIOR){if(this.isNull(i,j)){this.depth[i][j]=jsts.geomgraph.Depth.depthAtLocation(loc)}else this.depth[i][j]+=jsts.geomgraph.Depth.depthAtLocation(loc)}}}};jsts.geomgraph.Depth.prototype.getDelta=function(geomIndex){return this.depth[geomIndex][Position.RIGHT]-this.depth[geomIndex][Position.LEFT]};jsts.geomgraph.Depth.prototype.normalize=function(){for(var i=0;i<2;i++){if(!this.isNull(i)){var minDepth=this.depth[i][1];if(this.depth[i][2]<minDepth)minDepth=this.depth[i][2];if(minDepth<0)minDepth=0;for(var j=1;j<3;j++){var newValue=0;if(this.depth[i][j]>minDepth)newValue=1;this.depth[i][j]=newValue}}}};jsts.geomgraph.Depth.prototype.toString=function(){return"A: "+this.depth[0][1]+","+this.depth[0][2]+" B: "+this.depth[1][1]+","+this.depth[1][2]}})();jsts.algorithm.BoundaryNodeRule=function(){};jsts.algorithm.BoundaryNodeRule.prototype.isInBoundary=function(boundaryCount){throw new jsts.error.AbstractMethodInvocationError};jsts.algorithm.Mod2BoundaryNodeRule=function(){};jsts.algorithm.Mod2BoundaryNodeRule.prototype=new jsts.algorithm.BoundaryNodeRule;jsts.algorithm.Mod2BoundaryNodeRule.prototype.isInBoundary=function(boundaryCount){return boundaryCount%2===1};jsts.algorithm.BoundaryNodeRule.MOD2_BOUNDARY_RULE=new jsts.algorithm.Mod2BoundaryNodeRule;jsts.algorithm.BoundaryNodeRule.OGC_SFS_BOUNDARY_RULE=jsts.algorithm.BoundaryNodeRule.MOD2_BOUNDARY_RULE;jsts.operation.distance.GeometryLocation=function(component,segIndex,pt){this.component=component;this.segIndex=segIndex;this.pt=pt};jsts.operation.distance.GeometryLocation.INSIDE_AREA=-1;jsts.operation.distance.GeometryLocation.prototype.component=null;jsts.operation.distance.GeometryLocation.prototype.segIndex=null;jsts.operation.distance.GeometryLocation.prototype.pt=null;jsts.operation.distance.GeometryLocation.prototype.getGeometryComponent=function(){return this.component};jsts.operation.distance.GeometryLocation.prototype.getSegmentIndex=function(){return this.segIndex};jsts.operation.distance.GeometryLocation.prototype.getCoordinate=function(){return this.pt};jsts.operation.distance.GeometryLocation.prototype.isInsideArea=function(){return this.segIndex===jsts.operation.distance.GeometryLocation.INSIDE_AREA};jsts.geom.util.PointExtracter=function(pts){this.pts=pts};jsts.geom.util.PointExtracter.prototype=new jsts.geom.GeometryFilter;jsts.geom.util.PointExtracter.prototype.pts=null;jsts.geom.util.PointExtracter.getPoints=function(geom,list){if(list===undefined){list=[]}if(geom instanceof jsts.geom.Point){list.push(geom)}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){geom.apply(new jsts.geom.util.PointExtracter(list))}return list};jsts.geom.util.PointExtracter.prototype.filter=function(geom){if(geom instanceof jsts.geom.Point)this.pts.push(geom)};jsts.noding.ScaledNoder=function(noder,scaleFactor,offsetX,offsetY){this.offsetX=offsetX?offsetX:0;this.offsetY=offsetY?offsetY:0;this.noder=noder;this.scaleFactor=scaleFactor;this.isScaled=!this.isIntegerPrecision()};jsts.noding.ScaledNoder.prototype=new jsts.noding.Noder;jsts.noding.ScaledNoder.constructor=jsts.noding.ScaledNoder;jsts.noding.ScaledNoder.prototype.noder=null;jsts.noding.ScaledNoder.prototype.scaleFactor=undefined;jsts.noding.ScaledNoder.prototype.offsetX=undefined;jsts.noding.ScaledNoder.prototype.offsetY=undefined;jsts.noding.ScaledNoder.prototype.isScaled=false;jsts.noding.ScaledNoder.prototype.isIntegerPrecision=function(){return this.scaleFactor===1};jsts.noding.ScaledNoder.prototype.getNodedSubstrings=function(){var splitSS=this.noder.getNodedSubstrings();if(this.isScaled)this.rescale(splitSS);return splitSS};jsts.noding.ScaledNoder.prototype.computeNodes=function(inputSegStrings){var intSegStrings=inputSegStrings;if(this.isScaled)intSegStrings=this.scale(inputSegStrings);this.noder.computeNodes(intSegStrings)};jsts.noding.ScaledNoder.prototype.scale=function(segStrings){if(segStrings instanceof Array){return this.scale2(segStrings)}var transformed=new javascript.util.ArrayList;for(var i=segStrings.iterator();i.hasNext();){var ss=i.next();transformed.add(new jsts.noding.NodedSegmentString(this.scale(ss.getCoordinates()),ss.getData()))}return transformed};jsts.noding.ScaledNoder.prototype.scale2=function(pts){var roundPts=[];for(var i=0;i<pts.length;i++){roundPts[i]=new jsts.geom.Coordinate(Math.round((pts[i].x-this.offsetX)*this.scaleFactor),Math.round((pts[i].y-this.offsetY)*this.scaleFactor))}var roundPtsNoDup=jsts.geom.CoordinateArrays.removeRepeatedPoints(roundPts);return roundPtsNoDup};jsts.noding.ScaledNoder.prototype.rescale=function(segStrings){if(segStrings instanceof Array){this.rescale2(segStrings);return}for(var i=segStrings.iterator();i.hasNext();){var ss=i.next();this.rescale(ss.getCoordinates())}};jsts.noding.ScaledNoder.prototype.rescale2=function(pts){for(var i=0;i<pts.length;i++){pts[i].x=pts[i].x/this.scaleFactor+this.offsetX;pts[i].y=pts[i].y/this.scaleFactor+this.offsetY}};jsts.geomgraph.index.SimpleSweepLineIntersector=function(){};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype=new jsts.geomgraph.index.EdgeSetIntersector;jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.events=[];jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.nOverlaps=null;jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.computeIntersections=function(edges,si,testAllSegments){if(si instanceof javascript.util.List){this.computeIntersections2.apply(this,arguments);return}if(testAllSegments){this.add(edges,null)}else{this.add(edges)}this.computeIntersections3(si)};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.computeIntersections2=function(edges0,edges1,si){this.add(edges0,edges0);this.add(edges1,edges1);this.computeIntersections3(si)};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.add=function(edge,edgeSet){if(edge instanceof javascript.util.List){this.add2.apply(this,arguments);return}var pts=edge.getCoordinates();for(var i=0;i<pts.length-1;i++){var ss=new jsts.geomgraph.index.SweepLineSegment(edge,i);var insertEvent=new jsts.geomgraph.index.SweepLineEvent(ss.getMinX(),ss,edgeSet);this.events.push(insertEvent);this.events.push(new jsts.geomgraph.index.SweepLineEvent(ss.getMaxX(),insertEvent))}};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.add2=function(edges,edgeSet){for(var i=edges.iterator();i.hasNext();){var edge=i.next();if(edgeSet){this.add(edge,edgeSet)}else{this.add(edge,edge)}}};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.prepareEvents=function(){this.events.sort(function(a,b){return a.compareTo(b)});for(var i=0;i<this.events.length;i++){var ev=this.events[i];if(ev.isDelete()){ev.getInsertEvent().setDeleteEventIndex(i)}}};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.computeIntersections3=function(si){this.nOverlaps=0;this.prepareEvents();for(var i=0;i<this.events.length;i++){var ev=this.events[i];if(ev.isInsert()){this.processOverlaps(i,ev.getDeleteEventIndex(),ev,si)}}};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.processOverlaps=function(start,end,ev0,si){var ss0=ev0.getObject();for(var i=start;i<end;i++){var ev1=this.events[i];if(ev1.isInsert()){var ss1=ev1.getObject();if(!ev0.isSameLabel(ev1)){ss0.computeIntersections(ss1,si);this.nOverlaps++}}}};jsts.triangulate.VoronoiDiagramBuilder=function(){this.siteCoords=null;this.tolerance=0;this.subdiv=null;this.clipEnv=null;this.diagramEnv=null};jsts.triangulate.VoronoiDiagramBuilder.prototype.setSites=function(){var arg=arguments[0];if(arg instanceof jsts.geom.Geometry||arg instanceof jsts.geom.Coordinate||arg instanceof jsts.geom.Point||arg instanceof jsts.geom.MultiPoint||arg instanceof jsts.geom.LineString||arg instanceof jsts.geom.MultiLineString||arg instanceof jsts.geom.LinearRing||arg instanceof jsts.geom.Polygon||arg instanceof jsts.geom.MultiPolygon){this.setSitesByGeometry(arg)}else{this.setSitesByArray(arg)}};jsts.triangulate.VoronoiDiagramBuilder.prototype.setSitesByGeometry=function(geom){this.siteCoords=jsts.triangulate.DelaunayTriangulationBuilder.extractUniqueCoordinates(geom)};jsts.triangulate.VoronoiDiagramBuilder.prototype.setSitesByArray=function(coords){this.siteCoords=jsts.triangulate.DelaunayTriangulationBuilder.unique(coords)};jsts.triangulate.VoronoiDiagramBuilder.prototype.setClipEnvelope=function(clipEnv){this.clipEnv=clipEnv};jsts.triangulate.VoronoiDiagramBuilder.prototype.setTolerance=function(tolerance){this.tolerance=tolerance};jsts.triangulate.VoronoiDiagramBuilder.prototype.create=function(){if(this.subdiv!==null){return}var siteEnv,expandBy,vertices,triangulator;siteEnv=jsts.triangulate.DelaunayTriangulationBuilder.envelope(this.siteCoords);this.diagramEnv=siteEnv;expandBy=Math.max(this.diagramEnv.getWidth(),this.diagramEnv.getHeight());this.diagramEnv.expandBy(expandBy);if(this.clipEnv!==null){this.diagramEnv.expandToInclude(this.clipEnv)}vertices=jsts.triangulate.DelaunayTriangulationBuilder.toVertices(this.siteCoords);this.subdiv=new jsts.triangulate.quadedge.QuadEdgeSubdivision(siteEnv,this.tolerance);triangulator=new jsts.triangulate.IncrementalDelaunayTriangulator(this.subdiv);triangulator.insertSites(vertices)};jsts.triangulate.VoronoiDiagramBuilder.prototype.getSubdivision=function(){this.create();return this.subdiv};jsts.triangulate.VoronoiDiagramBuilder.prototype.getDiagram=function(geomFact){this.create();var polys=this.subdiv.getVoronoiDiagram(geomFact);return this.clipGeometryCollection(polys,this.diagramEnv)};jsts.triangulate.VoronoiDiagramBuilder.prototype.clipGeometryCollection=function(geom,clipEnv){var clipPoly,clipped,i,il,g,result;clipPoly=geom.getFactory().toGeometry(clipEnv);clipped=[];i=0,il=geom.getNumGeometries();for(i;i<il;i++){g=geom.getGeometryN(i);result=null;if(clipEnv.contains(g.getEnvelopeInternal())){result=g}else if(clipEnv.intersects(g.getEnvelopeInternal())){result=clipPoly.intersection(g)}if(result!==null&&!result.isEmpty()){clipped.push(result)}}return geom.getFactory().createGeometryCollection(clipped)};jsts.operation.valid.IndexedNestedRingTester=function(graph){this.graph=graph;this.rings=new javascript.util.ArrayList;this.totalEnv=new jsts.geom.Envelope;this.index=null;this.nestedPt=null};jsts.operation.valid.IndexedNestedRingTester.prototype.getNestedPoint=function(){return this.nestedPt};jsts.operation.valid.IndexedNestedRingTester.prototype.add=function(ring){this.rings.add(ring);this.totalEnv.expandToInclude(ring.getEnvelopeInternal())};jsts.operation.valid.IndexedNestedRingTester.prototype.isNonNested=function(){this.buildIndex();for(var i=0;i<this.rings.size();i++){var innerRing=this.rings.get(i);var innerRingPts=innerRing.getCoordinates();var results=this.index.query(innerRing.getEnvelopeInternal());for(var j=0;j<results.length;j++){var searchRing=results[j];var searchRingPts=searchRing.getCoordinates();if(innerRing==searchRing){continue}if(!innerRing.getEnvelopeInternal().intersects(searchRing.getEnvelopeInternal())){continue}var innerRingPt=jsts.operation.valid.IsValidOp.findPtNotNode(innerRingPts,searchRing,this.graph);if(innerRingPt==null){continue}var isInside=jsts.algorithm.CGAlgorithms.isPointInRing(innerRingPt,searchRingPts);if(isInside){this.nestedPt=innerRingPt;return false}}}return true};jsts.operation.valid.IndexedNestedRingTester.prototype.buildIndex=function(){this.index=new jsts.index.strtree.STRtree;for(var i=0;i<this.rings.size();i++){var ring=this.rings.get(i);var env=ring.getEnvelopeInternal();this.index.insert(env,ring)}};jsts.geomgraph.index.MonotoneChain=function(mce,chainIndex){this.mce=mce;this.chainIndex=chainIndex};jsts.geomgraph.index.MonotoneChain.prototype.mce=null;jsts.geomgraph.index.MonotoneChain.prototype.chainIndex=null;jsts.geomgraph.index.MonotoneChain.prototype.computeIntersections=function(mc,si){this.mce.computeIntersectsForChain(this.chainIndex,mc.mce,mc.chainIndex,si)};jsts.noding.SegmentNode=function(segString,coord,segmentIndex,segmentOctant){this.segString=segString;this.coord=new jsts.geom.Coordinate(coord);this.segmentIndex=segmentIndex;this.segmentOctant=segmentOctant;this._isInterior=!coord.equals2D(segString.getCoordinate(segmentIndex))};jsts.noding.SegmentNode.prototype.segString=null;jsts.noding.SegmentNode.prototype.coord=null;jsts.noding.SegmentNode.prototype.segmentIndex=null;jsts.noding.SegmentNode.prototype.segmentOctant=null;jsts.noding.SegmentNode.prototype._isInterior=null;jsts.noding.SegmentNode.prototype.getCoordinate=function(){return this.coord};jsts.noding.SegmentNode.prototype.isInterior=function(){return this._isInterior};jsts.noding.SegmentNode.prototype.isEndPoint=function(maxSegmentIndex){if(this.segmentIndex===0&&!this._isInterior)return true;if(this.segmentIndex===this.maxSegmentIndex)return true;return false};jsts.noding.SegmentNode.prototype.compareTo=function(obj){var other=obj;if(this.segmentIndex<other.segmentIndex)return-1;if(this.segmentIndex>other.segmentIndex)return 1;if(this.coord.equals2D(other.coord))return 0;return jsts.noding.SegmentPointComparator.compare(this.segmentOctant,this.coord,other.coord)};(function(){jsts.io.GeoJSONWriter=function(){this.parser=new jsts.io.GeoJSONParser(this.geometryFactory)};jsts.io.GeoJSONWriter.prototype.write=function(geometry){var geoJson=this.parser.write(geometry);return geoJson}})();jsts.io.OpenLayersParser=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory};jsts.io.OpenLayersParser.prototype.read=function(geometry){if(geometry.CLASS_NAME==="OpenLayers.Geometry.Point"){return this.convertFromPoint(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.LineString"){return this.convertFromLineString(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.LinearRing"){return this.convertFromLinearRing(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.Polygon"){return this.convertFromPolygon(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.MultiPoint"){return this.convertFromMultiPoint(geometry)
}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.MultiLineString"){return this.convertFromMultiLineString(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.MultiPolygon"){return this.convertFromMultiPolygon(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.Collection"){return this.convertFromCollection(geometry)}};jsts.io.OpenLayersParser.prototype.convertFromPoint=function(point){return this.geometryFactory.createPoint(new jsts.geom.Coordinate(point.x,point.y))};jsts.io.OpenLayersParser.prototype.convertFromLineString=function(lineString){var i;var coordinates=[];for(i=0;i<lineString.components.length;i++){coordinates.push(new jsts.geom.Coordinate(lineString.components[i].x,lineString.components[i].y))}return this.geometryFactory.createLineString(coordinates)};jsts.io.OpenLayersParser.prototype.convertFromLinearRing=function(linearRing){var i;var coordinates=[];for(i=0;i<linearRing.components.length;i++){coordinates.push(new jsts.geom.Coordinate(linearRing.components[i].x,linearRing.components[i].y))}return this.geometryFactory.createLinearRing(coordinates)};jsts.io.OpenLayersParser.prototype.convertFromPolygon=function(polygon){var i;var shell=null;var holes=[];for(i=0;i<polygon.components.length;i++){var linearRing=this.convertFromLinearRing(polygon.components[i]);if(i===0){shell=linearRing}else{holes.push(linearRing)}}return this.geometryFactory.createPolygon(shell,holes)};jsts.io.OpenLayersParser.prototype.convertFromMultiPoint=function(multiPoint){var i;var points=[];for(i=0;i<multiPoint.components.length;i++){points.push(this.convertFromPoint(multiPoint.components[i]))}return this.geometryFactory.createMultiPoint(points)};jsts.io.OpenLayersParser.prototype.convertFromMultiLineString=function(multiLineString){var i;var lineStrings=[];for(i=0;i<multiLineString.components.length;i++){lineStrings.push(this.convertFromLineString(multiLineString.components[i]))}return this.geometryFactory.createMultiLineString(lineStrings)};jsts.io.OpenLayersParser.prototype.convertFromMultiPolygon=function(multiPolygon){var i;var polygons=[];for(i=0;i<multiPolygon.components.length;i++){polygons.push(this.convertFromPolygon(multiPolygon.components[i]))}return this.geometryFactory.createMultiPolygon(polygons)};jsts.io.OpenLayersParser.prototype.convertFromCollection=function(collection){var i;var geometries=[];for(i=0;i<collection.components.length;i++){geometries.push(this.read(collection.components[i]))}return this.geometryFactory.createGeometryCollection(geometries)};jsts.io.OpenLayersParser.prototype.write=function(geometry){if(geometry.CLASS_NAME==="jsts.geom.Point"){return this.convertToPoint(geometry.coordinate)}else if(geometry.CLASS_NAME==="jsts.geom.LineString"){return this.convertToLineString(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.LinearRing"){return this.convertToLinearRing(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.Polygon"){return this.convertToPolygon(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.MultiPoint"){return this.convertToMultiPoint(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.MultiLineString"){return this.convertToMultiLineString(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.MultiPolygon"){return this.convertToMultiPolygon(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.GeometryCollection"){return this.convertToCollection(geometry)}};jsts.io.OpenLayersParser.prototype.convertToPoint=function(coordinate){return new OpenLayers.Geometry.Point(coordinate.x,coordinate.y)};jsts.io.OpenLayersParser.prototype.convertToLineString=function(lineString){var i;var points=[];for(i=0;i<lineString.points.length;i++){var coordinate=lineString.points[i];points.push(this.convertToPoint(coordinate))}return new OpenLayers.Geometry.LineString(points)};jsts.io.OpenLayersParser.prototype.convertToLinearRing=function(linearRing){var i;var points=[];for(i=0;i<linearRing.points.length;i++){var coordinate=linearRing.points[i];points.push(this.convertToPoint(coordinate))}return new OpenLayers.Geometry.LinearRing(points)};jsts.io.OpenLayersParser.prototype.convertToPolygon=function(polygon){var i;var rings=[];rings.push(this.convertToLinearRing(polygon.shell));for(i=0;i<polygon.holes.length;i++){var ring=polygon.holes[i];rings.push(this.convertToLinearRing(ring))}return new OpenLayers.Geometry.Polygon(rings)};jsts.io.OpenLayersParser.prototype.convertToMultiPoint=function(multiPoint){var i;var points=[];for(i=0;i<multiPoint.geometries.length;i++){var coordinate=multiPoint.geometries[i].coordinate;points.push(new OpenLayers.Geometry.Point(coordinate.x,coordinate.y))}return new OpenLayers.Geometry.MultiPoint(points)};jsts.io.OpenLayersParser.prototype.convertToMultiLineString=function(multiLineString){var i;var lineStrings=[];for(i=0;i<multiLineString.geometries.length;i++){lineStrings.push(this.convertToLineString(multiLineString.geometries[i]))}return new OpenLayers.Geometry.MultiLineString(lineStrings)};jsts.io.OpenLayersParser.prototype.convertToMultiPolygon=function(multiPolygon){var i;var polygons=[];for(i=0;i<multiPolygon.geometries.length;i++){polygons.push(this.convertToPolygon(multiPolygon.geometries[i]))}return new OpenLayers.Geometry.MultiPolygon(polygons)};jsts.io.OpenLayersParser.prototype.convertToCollection=function(geometryCollection){var i;var geometries=[];for(i=0;i<geometryCollection.geometries.length;i++){var geometry=geometryCollection.geometries[i];var geometryOpenLayers=this.write(geometry);geometries.push(geometryOpenLayers)}return new OpenLayers.Geometry.Collection(geometries)};jsts.index.quadtree.Quadtree=function(){this.root=new jsts.index.quadtree.Root;this.minExtent=1};jsts.index.quadtree.Quadtree.ensureExtent=function(itemEnv,minExtent){var minx,maxx,miny,maxy;minx=itemEnv.getMinX();maxx=itemEnv.getMaxX();miny=itemEnv.getMinY();maxy=itemEnv.getMaxY();if(minx!==maxx&&miny!==maxy){return itemEnv}if(minx===maxx){minx=minx-minExtent/2;maxx=minx+minExtent/2}if(miny===maxy){miny=miny-minExtent/2;maxy=miny+minExtent/2}return new jsts.geom.Envelope(minx,maxx,miny,maxy)};jsts.index.quadtree.Quadtree.prototype.depth=function(){return this.root.depth()};jsts.index.quadtree.Quadtree.prototype.size=function(){return this.root.size()};jsts.index.quadtree.Quadtree.prototype.insert=function(itemEnv,item){this.collectStats(itemEnv);var insertEnv=jsts.index.quadtree.Quadtree.ensureExtent(itemEnv,this.minExtent);this.root.insert(insertEnv,item)};jsts.index.quadtree.Quadtree.prototype.remove=function(itemEnv,item){var posEnv=jsts.index.quadtree.Quadtree.ensureExtent(itemEnv,this.minExtent);return this.root.remove(posEnv,item)};jsts.index.quadtree.Quadtree.prototype.query=function(){if(arguments.length===1){return jsts.index.quadtree.Quadtree.prototype.queryByEnvelope.apply(this,arguments)}else{jsts.index.quadtree.Quadtree.prototype.queryWithVisitor.apply(this,arguments)}};jsts.index.quadtree.Quadtree.prototype.queryByEnvelope=function(searchEnv){var visitor=new jsts.index.ArrayListVisitor;this.query(searchEnv,visitor);return visitor.getItems()};jsts.index.quadtree.Quadtree.prototype.queryWithVisitor=function(searchEnv,visitor){this.root.visit(searchEnv,visitor)};jsts.index.quadtree.Quadtree.prototype.queryAll=function(){var foundItems=[];foundItems=this.root.addAllItems(foundItems);return foundItems};jsts.index.quadtree.Quadtree.prototype.collectStats=function(itemEnv){var delX=itemEnv.getWidth();if(delX<this.minExtent&&delX>0){this.minExtent=delX}var delY=itemEnv.getHeight();if(delY<this.minExtent&&delY>0){this.minExtent=delY}};jsts.operation.relate.RelateNodeFactory=function(){};jsts.operation.relate.RelateNodeFactory.prototype=new jsts.geomgraph.NodeFactory;jsts.operation.relate.RelateNodeFactory.prototype.createNode=function(coord){return new jsts.operation.relate.RelateNode(coord,new jsts.operation.relate.EdgeEndBundleStar)};jsts.index.quadtree.Key=function(itemEnv){this.pt=new jsts.geom.Coordinate;this.level=0;this.env=null;this.computeKey(itemEnv)};jsts.index.quadtree.Key.computeQuadLevel=function(env){var dx,dy,dMax,level;dx=env.getWidth();dy=env.getHeight();dMax=dx>dy?dx:dy;level=jsts.index.DoubleBits.exponent(dMax)+1;return level};jsts.index.quadtree.Key.prototype.getPoint=function(){return this.pt};jsts.index.quadtree.Key.prototype.getLevel=function(){return this.level};jsts.index.quadtree.Key.prototype.getEnvelope=function(){return this.env};jsts.index.quadtree.Key.prototype.getCentre=function(){var x,y;x=(this.env.getMinX()+this.env.getMaxX())/2;y=(this.env.getMinY()+this.env.getMaxY())/2;return new jsts.geom.Coordinate(x,y)};jsts.index.quadtree.Key.prototype.computeKey=function(){if(arguments[0]instanceof jsts.geom.Envelope){this.computeKeyFromEnvelope(arguments[0])}else{this.computeKeyFromLevel(arguments[0],arguments[1])}};jsts.index.quadtree.Key.prototype.computeKeyFromEnvelope=function(env){this.level=jsts.index.quadtree.Key.computeQuadLevel(env);this.env=new jsts.geom.Envelope;this.computeKey(this.level,env);while(!this.env.contains(env)){this.level+=1;this.computeKey(this.level,env)}};jsts.index.quadtree.Key.prototype.computeKeyFromLevel=function(level,env){var quadSize=jsts.index.DoubleBits.powerOf2(level);this.pt.x=Math.floor(env.getMinX()/quadSize)*quadSize;this.pt.y=Math.floor(env.getMinY()/quadSize)*quadSize;this.env.init(this.pt.x,this.pt.x+quadSize,this.pt.y,this.pt.y+quadSize)};jsts.geom.CoordinateArrays=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.CoordinateArrays.removeRepeatedPoints=function(coord){var coordList;if(!this.hasRepeatedPoints(coord)){return coord}coordList=new jsts.geom.CoordinateList(coord,false);return coordList.toCoordinateArray()};jsts.geom.CoordinateArrays.hasRepeatedPoints=function(coord){var i;for(i=1;i<coord.length;i++){if(coord[i-1].equals(coord[i])){return true}}return false};jsts.geom.CoordinateArrays.ptNotInList=function(testPts,pts){for(var i=0;i<testPts.length;i++){var testPt=testPts[i];if(jsts.geom.CoordinateArrays.indexOf(testPt,pts)<0)return testPt}return null};jsts.geom.CoordinateArrays.increasingDirection=function(pts){for(var i=0;i<parseInt(pts.length/2);i++){var j=pts.length-1-i;var comp=pts[i].compareTo(pts[j]);if(comp!=0)return comp}return 1};jsts.geom.CoordinateArrays.minCoordinate=function(coordinates){var minCoord=null;for(var i=0;i<coordinates.length;i++){if(minCoord===null||minCoord.compareTo(coordinates[i])>0){minCoord=coordinates[i]}}return minCoord};jsts.geom.CoordinateArrays.scroll=function(coordinates,firstCoordinate){var i=jsts.geom.CoordinateArrays.indexOf(firstCoordinate,coordinates);if(i<0)return;var newCoordinates=coordinates.slice(i).concat(coordinates.slice(0,i));for(i=0;i<newCoordinates.length;i++){coordinates[i]=newCoordinates[i]}};jsts.geom.CoordinateArrays.indexOf=function(coordinate,coordinates){for(var i=0;i<coordinates.length;i++){if(coordinate.equals(coordinates[i])){return i}}return-1};jsts.operation.overlay.MinimalEdgeRing=function(start,geometryFactory){jsts.geomgraph.EdgeRing.call(this,start,geometryFactory)};jsts.operation.overlay.MinimalEdgeRing.prototype=new jsts.geomgraph.EdgeRing;jsts.operation.overlay.MinimalEdgeRing.constructor=jsts.operation.overlay.MinimalEdgeRing;jsts.operation.overlay.MinimalEdgeRing.prototype.getNext=function(de){return de.getNextMin()};jsts.operation.overlay.MinimalEdgeRing.prototype.setEdgeRing=function(de,er){de.setMinEdgeRing(er)};jsts.triangulate.DelaunayTriangulationBuilder=function(){this.siteCoords=null;this.tolerance=0;this.subdiv=null};jsts.triangulate.DelaunayTriangulationBuilder.extractUniqueCoordinates=function(geom){if(geom===undefined||geom===null){return new jsts.geom.CoordinateList([],false).toArray()}var coords=geom.getCoordinates();return jsts.triangulate.DelaunayTriangulationBuilder.unique(coords)};jsts.triangulate.DelaunayTriangulationBuilder.unique=function(coords){coords.sort(function(a,b){return a.compareTo(b)});var coordList=new jsts.geom.CoordinateList(coords,false);return coordList.toArray()};jsts.triangulate.DelaunayTriangulationBuilder.toVertices=function(coords){var verts=new Array(coords.length),i=0,il=coords.length,coord;for(i;i<il;i++){coord=coords[i];verts[i]=new jsts.triangulate.quadedge.Vertex(coord)}return verts};jsts.triangulate.DelaunayTriangulationBuilder.envelope=function(coords){var env=new jsts.geom.Envelope,i=0,il=coords.length;for(i;i<il;i++){env.expandToInclude(coords[i])}return env};jsts.triangulate.DelaunayTriangulationBuilder.prototype.setSites=function(){var arg=arguments[0];if(arg instanceof jsts.geom.Geometry||arg instanceof jsts.geom.Coordinate||arg instanceof jsts.geom.Point||arg instanceof jsts.geom.MultiPoint||arg instanceof jsts.geom.LineString||arg instanceof jsts.geom.MultiLineString||arg instanceof jsts.geom.LinearRing||arg instanceof jsts.geom.Polygon||arg instanceof jsts.geom.MultiPolygon){this.setSitesFromGeometry(arg)}else{this.setSitesFromCollection(arg)}};jsts.triangulate.DelaunayTriangulationBuilder.prototype.setSitesFromGeometry=function(geom){this.siteCoords=jsts.triangulate.DelaunayTriangulationBuilder.extractUniqueCoordinates(geom)};jsts.triangulate.DelaunayTriangulationBuilder.prototype.setSitesFromCollection=function(coords){this.siteCoords=jsts.triangulate.DelaunayTriangulationBuilder.unique(coords)};jsts.triangulate.DelaunayTriangulationBuilder.prototype.setTolerance=function(tolerance){this.tolerance=tolerance};jsts.triangulate.DelaunayTriangulationBuilder.prototype.create=function(){if(this.subdiv===null){var siteEnv,vertices,triangulator;siteEnv=jsts.triangulate.DelaunayTriangulationBuilder.envelope(this.siteCoords);vertices=jsts.triangulate.DelaunayTriangulationBuilder.toVertices(this.siteCoords);this.subdiv=new jsts.triangulate.quadedge.QuadEdgeSubdivision(siteEnv,this.tolerance);triangulator=new jsts.triangulate.IncrementalDelaunayTriangulator(this.subdiv);triangulator.insertSites(vertices)}};jsts.triangulate.DelaunayTriangulationBuilder.prototype.getSubdivision=function(){this.create();return this.subdiv};jsts.triangulate.DelaunayTriangulationBuilder.prototype.getEdges=function(geomFact){this.create();return this.subdiv.getEdges(geomFact)};jsts.triangulate.DelaunayTriangulationBuilder.prototype.getTriangles=function(geomFact){this.create();return this.subdiv.getTriangles(geomFact)};jsts.algorithm.RayCrossingCounter=function(p){this.p=p};jsts.algorithm.RayCrossingCounter.locatePointInRing=function(p,ring){var counter=new jsts.algorithm.RayCrossingCounter(p);for(var i=1;i<ring.length;i++){var p1=ring[i];var p2=ring[i-1];counter.countSegment(p1,p2);if(counter.isOnSegment())return counter.getLocation()}return counter.getLocation()};jsts.algorithm.RayCrossingCounter.prototype.p=null;jsts.algorithm.RayCrossingCounter.prototype.crossingCount=0;jsts.algorithm.RayCrossingCounter.prototype.isPointOnSegment=false;jsts.algorithm.RayCrossingCounter.prototype.countSegment=function(p1,p2){if(p1.x<this.p.x&&p2.x<this.p.x)return;if(this.p.x==p2.x&&this.p.y===p2.y){this.isPointOnSegment=true;return}if(p1.y===this.p.y&&p2.y===this.p.y){var minx=p1.x;var maxx=p2.x;if(minx>maxx){minx=p2.x;maxx=p1.x}if(this.p.x>=minx&&this.p.x<=maxx){this.isPointOnSegment=true}return}if(p1.y>this.p.y&&p2.y<=this.p.y||p2.y>this.p.y&&p1.y<=this.p.y){var x1=p1.x-this.p.x;var y1=p1.y-this.p.y;var x2=p2.x-this.p.x;var y2=p2.y-this.p.y;var xIntSign=jsts.algorithm.RobustDeterminant.signOfDet2x2(x1,y1,x2,y2);if(xIntSign===0){this.isPointOnSegment=true;return}if(y2<y1)xIntSign=-xIntSign;if(xIntSign>0){this.crossingCount++}}};jsts.algorithm.RayCrossingCounter.prototype.isOnSegment=function(){return jsts.geom.isPointOnSegment};jsts.algorithm.RayCrossingCounter.prototype.getLocation=function(){if(this.isPointOnSegment)return jsts.geom.Location.BOUNDARY;if(this.crossingCount%2===1){return jsts.geom.Location.INTERIOR}return jsts.geom.Location.EXTERIOR};jsts.algorithm.RayCrossingCounter.prototype.isPointInPolygon=function(){return this.getLocation()!==jsts.geom.Location.EXTERIOR};jsts.operation.BoundaryOp=function(geom,bnRule){this.geom=geom;this.geomFact=geom.getFactory();this.bnRule=bnRule||jsts.algorithm.BoundaryNodeRule.MOD2_BOUNDARY_RULE};jsts.operation.BoundaryOp.prototype.geom=null;jsts.operation.BoundaryOp.prototype.geomFact=null;jsts.operation.BoundaryOp.prototype.bnRule=null;jsts.operation.BoundaryOp.prototype.getBoundary=function(){if(this.geom instanceof jsts.geom.LineString)return this.boundaryLineString(this.geom);if(this.geom instanceof jsts.geom.MultiLineString)return this.boundaryMultiLineString(this.geom);return this.geom.getBoundary()};jsts.operation.BoundaryOp.prototype.getEmptyMultiPoint=function(){return this.geomFact.createMultiPoint(null)};jsts.operation.BoundaryOp.prototype.boundaryMultiLineString=function(mLine){if(this.geom.isEmpty()){return this.getEmptyMultiPoint()}var bdyPts=this.computeBoundaryCoordinates(mLine);if(bdyPts.length==1){return this.geomFact.createPoint(bdyPts[0])}return this.geomFact.createMultiPoint(bdyPts)};jsts.operation.BoundaryOp.prototype.endpoints=null;jsts.operation.BoundaryOp.prototype.computeBoundaryCoordinates=function(mLine){var i,line,endpoint,bdyPts=[];this.endpoints=[];for(i=0;i<mLine.getNumGeometries();i++){line=mLine.getGeometryN(i);if(line.getNumPoints()==0)continue;this.addEndpoint(line.getCoordinateN(0));this.addEndpoint(line.getCoordinateN(line.getNumPoints()-1))}for(i=0;i<this.endpoints.length;i++){endpoint=this.endpoints[i];if(this.bnRule.isInBoundary(endpoint.count)){bdyPts.push(endpoint.coordinate)}}return bdyPts};jsts.operation.BoundaryOp.prototype.addEndpoint=function(pt){var i,endpoint,found=false;for(i=0;i<this.endpoints.length;i++){endpoint=this.endpoints[i];if(endpoint.coordinate.equals(pt)){found=true;break}}if(!found){endpoint={};endpoint.coordinate=pt;endpoint.count=0;this.endpoints.push(endpoint)}endpoint.count++};jsts.operation.BoundaryOp.prototype.boundaryLineString=function(line){if(this.geom.isEmpty()){return this.getEmptyMultiPoint()}if(line.isClosed()){var closedEndpointOnBoundary=this.bnRule.isInBoundary(2);if(closedEndpointOnBoundary){return line.getStartPoint()}else{return this.geomFact.createMultiPoint(null)}}return this.geomFact.createMultiPoint([line.getStartPoint(),line.getEndPoint()])};jsts.operation.buffer.OffsetCurveSetBuilder=function(inputGeom,distance,curveBuilder){this.inputGeom=inputGeom;this.distance=distance;this.curveBuilder=curveBuilder;this.curveList=new javascript.util.ArrayList};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.inputGeom=null;jsts.operation.buffer.OffsetCurveSetBuilder.prototype.distance=null;jsts.operation.buffer.OffsetCurveSetBuilder.prototype.curveBuilder=null;jsts.operation.buffer.OffsetCurveSetBuilder.prototype.curveList=null;jsts.operation.buffer.OffsetCurveSetBuilder.prototype.getCurves=function(){this.add(this.inputGeom);return this.curveList};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addCurve=function(coord,leftLoc,rightLoc){if(coord==null||coord.length<2)return;var e=new jsts.noding.NodedSegmentString(coord,new jsts.geomgraph.Label(0,jsts.geom.Location.BOUNDARY,leftLoc,rightLoc));this.curveList.add(e)};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.add=function(g){if(g.isEmpty())return;if(g instanceof jsts.geom.Polygon)this.addPolygon(g);else if(g instanceof jsts.geom.LineString)this.addLineString(g);else if(g instanceof jsts.geom.Point)this.addPoint(g);else if(g instanceof jsts.geom.MultiPoint)this.addCollection(g);else if(g instanceof jsts.geom.MultiLineString)this.addCollection(g);else if(g instanceof jsts.geom.MultiPolygon)this.addCollection(g);else if(g instanceof jsts.geom.GeometryCollection)this.addCollection(g);else throw new jsts.error.IllegalArgumentError};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addCollection=function(gc){for(var i=0;i<gc.getNumGeometries();i++){var g=gc.getGeometryN(i);this.add(g)}};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addPoint=function(p){if(this.distance<=0)return;var coord=p.getCoordinates();var curve=this.curveBuilder.getLineCurve(coord,this.distance);this.addCurve(curve,jsts.geom.Location.EXTERIOR,jsts.geom.Location.INTERIOR)};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addLineString=function(line){if(this.distance<=0&&!this.curveBuilder.getBufferParameters().isSingleSided())return;var coord=jsts.geom.CoordinateArrays.removeRepeatedPoints(line.getCoordinates());var curve=this.curveBuilder.getLineCurve(coord,this.distance);this.addCurve(curve,jsts.geom.Location.EXTERIOR,jsts.geom.Location.INTERIOR)};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addPolygon=function(p){var offsetDistance=this.distance;var offsetSide=jsts.geomgraph.Position.LEFT;if(this.distance<0){offsetDistance=-this.distance;offsetSide=jsts.geomgraph.Position.RIGHT}var shell=p.getExteriorRing();var shellCoord=jsts.geom.CoordinateArrays.removeRepeatedPoints(shell.getCoordinates());if(this.distance<0&&this.isErodedCompletely(shell,this.distance))return;if(this.distance<=0&&shellCoord.length<3)return;this.addPolygonRing(shellCoord,offsetDistance,offsetSide,jsts.geom.Location.EXTERIOR,jsts.geom.Location.INTERIOR);for(var i=0;i<p.getNumInteriorRing();i++){var hole=p.getInteriorRingN(i);var holeCoord=jsts.geom.CoordinateArrays.removeRepeatedPoints(hole.getCoordinates());if(this.distance>0&&this.isErodedCompletely(hole,-this.distance))continue;this.addPolygonRing(holeCoord,offsetDistance,jsts.geomgraph.Position.opposite(offsetSide),jsts.geom.Location.INTERIOR,jsts.geom.Location.EXTERIOR)}};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addPolygonRing=function(coord,offsetDistance,side,cwLeftLoc,cwRightLoc){if(offsetDistance==0&&coord.length<jsts.geom.LinearRing.MINIMUM_VALID_SIZE)return;var leftLoc=cwLeftLoc;var rightLoc=cwRightLoc;if(coord.length>=jsts.geom.LinearRing.MINIMUM_VALID_SIZE&&jsts.algorithm.CGAlgorithms.isCCW(coord)){leftLoc=cwRightLoc;rightLoc=cwLeftLoc;side=jsts.geomgraph.Position.opposite(side)}var curve=this.curveBuilder.getRingCurve(coord,side,offsetDistance);this.addCurve(curve,leftLoc,rightLoc)};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.isErodedCompletely=function(ring,bufferDistance){var ringCoord=ring.getCoordinates();var minDiam=0;if(ringCoord.length<4)return bufferDistance<0;if(ringCoord.length==4)return this.isTriangleErodedCompletely(ringCoord,bufferDistance);var env=ring.getEnvelopeInternal();var envMinDimension=Math.min(env.getHeight(),env.getWidth());if(bufferDistance<0&&2*Math.abs(bufferDistance)>envMinDimension)return true;return false};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.isTriangleErodedCompletely=function(triangleCoord,bufferDistance){var tri=new jsts.geom.Triangle(triangleCoord[0],triangleCoord[1],triangleCoord[2]);var inCentre=tri.inCentre();var distToCentre=jsts.algorithm.CGAlgorithms.distancePointLine(inCentre,tri.p0,tri.p1);return distToCentre<Math.abs(bufferDistance)};jsts.operation.buffer.BufferSubgraph=function(){this.dirEdgeList=new javascript.util.ArrayList;this.nodes=new javascript.util.ArrayList;this.finder=new jsts.operation.buffer.RightmostEdgeFinder};jsts.operation.buffer.BufferSubgraph.prototype.finder=null;jsts.operation.buffer.BufferSubgraph.prototype.dirEdgeList=null;jsts.operation.buffer.BufferSubgraph.prototype.nodes=null;jsts.operation.buffer.BufferSubgraph.prototype.rightMostCoord=null;jsts.operation.buffer.BufferSubgraph.prototype.env=null;jsts.operation.buffer.BufferSubgraph.prototype.getDirectedEdges=function(){return this.dirEdgeList};jsts.operation.buffer.BufferSubgraph.prototype.getNodes=function(){return this.nodes};jsts.operation.buffer.BufferSubgraph.prototype.getEnvelope=function(){if(this.env===null){var edgeEnv=new jsts.geom.Envelope;for(var it=this.dirEdgeList.iterator();it.hasNext();){var dirEdge=it.next();var pts=dirEdge.getEdge().getCoordinates();for(var j=0;j<pts.length-1;j++){edgeEnv.expandToInclude(pts[j])}}this.env=edgeEnv}return this.env};jsts.operation.buffer.BufferSubgraph.prototype.getRightmostCoordinate=function(){return this.rightMostCoord};jsts.operation.buffer.BufferSubgraph.prototype.create=function(node){this.addReachable(node);this.finder.findEdge(this.dirEdgeList);this.rightMostCoord=this.finder.getCoordinate()};jsts.operation.buffer.BufferSubgraph.prototype.addReachable=function(startNode){var nodeStack=[];nodeStack.push(startNode);while(nodeStack.length!==0){var node=nodeStack.pop();this.add(node,nodeStack)}};jsts.operation.buffer.BufferSubgraph.prototype.add=function(node,nodeStack){node.setVisited(true);this.nodes.add(node);for(var i=node.getEdges().iterator();i.hasNext();){var de=i.next();this.dirEdgeList.add(de);var sym=de.getSym();var symNode=sym.getNode();if(!symNode.isVisited())nodeStack.push(symNode)}};jsts.operation.buffer.BufferSubgraph.prototype.clearVisitedEdges=function(){for(var it=this.dirEdgeList.iterator();it.hasNext();){var de=it.next();de.setVisited(false)}};jsts.operation.buffer.BufferSubgraph.prototype.computeDepth=function(outsideDepth){this.clearVisitedEdges();var de=this.finder.getEdge();var n=de.getNode();var label=de.getLabel();de.setEdgeDepths(jsts.geomgraph.Position.RIGHT,outsideDepth);this.copySymDepths(de);this.computeDepths(de)};jsts.operation.buffer.BufferSubgraph.prototype.computeDepths=function(startEdge){var nodesVisited=[];var nodeQueue=[];var startNode=startEdge.getNode();nodeQueue.push(startNode);nodesVisited.push(startNode);startEdge.setVisited(true);while(nodeQueue.length!==0){var n=nodeQueue.shift();nodesVisited.push(n);this.computeNodeDepth(n);for(var i=n.getEdges().iterator();i.hasNext();){var de=i.next();var sym=de.getSym();if(sym.isVisited())continue;var adjNode=sym.getNode();if(nodesVisited.indexOf(adjNode)===-1){nodeQueue.push(adjNode);nodesVisited.push(adjNode)}}}};jsts.operation.buffer.BufferSubgraph.prototype.computeNodeDepth=function(n){var startEdge=null;for(var i=n.getEdges().iterator();i.hasNext();){var de=i.next();if(de.isVisited()||de.getSym().isVisited()){startEdge=de;break}}if(startEdge==null)throw new jsts.error.TopologyError("unable to find edge to compute depths at "+n.getCoordinate());n.getEdges().computeDepths(startEdge);for(var i=n.getEdges().iterator();i.hasNext();){var de=i.next();de.setVisited(true);this.copySymDepths(de)}};jsts.operation.buffer.BufferSubgraph.prototype.copySymDepths=function(de){var sym=de.getSym();sym.setDepth(jsts.geomgraph.Position.LEFT,de.getDepth(jsts.geomgraph.Position.RIGHT));sym.setDepth(jsts.geomgraph.Position.RIGHT,de.getDepth(jsts.geomgraph.Position.LEFT))};jsts.operation.buffer.BufferSubgraph.prototype.findResultEdges=function(){for(var it=this.dirEdgeList.iterator();it.hasNext();){var de=it.next();if(de.getDepth(jsts.geomgraph.Position.RIGHT)>=1&&de.getDepth(jsts.geomgraph.Position.LEFT)<=0&&!de.isInteriorAreaEdge()){de.setInResult(true)}}};jsts.operation.buffer.BufferSubgraph.prototype.compareTo=function(o){var graph=o;if(this.rightMostCoord.x<graph.rightMostCoord.x){return-1}if(this.rightMostCoord.x>graph.rightMostCoord.x){return 1}return 0};jsts.geom.util.GeometryExtracter=function(clz,comps){this.clz=clz;this.comps=comps};jsts.geom.util.GeometryExtracter.prototype=new jsts.geom.GeometryFilter;jsts.geom.util.GeometryExtracter.prototype.clz=null;jsts.geom.util.GeometryExtracter.prototype.comps=null;jsts.geom.util.GeometryExtracter.extract=function(geom,clz,list){list=list||new javascript.util.ArrayList;if(geom instanceof clz){list.add(geom)}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){geom.apply(new jsts.geom.util.GeometryExtracter(clz,list))}return list};jsts.geom.util.GeometryExtracter.prototype.filter=function(geom){if(this.clz===null||geom instanceof this.clz){this.comps.add(geom)}};(function(){var OverlayOp=jsts.operation.overlay.OverlayOp;var SnapOverlayOp=jsts.operation.overlay.snap.SnapOverlayOp;var SnapIfNeededOverlayOp=function(g1,g2){this.geom=[];this.geom[0]=g1;this.geom[1]=g2};SnapIfNeededOverlayOp.overlayOp=function(g0,g1,opCode){var op=new SnapIfNeededOverlayOp(g0,g1);return op.getResultGeometry(opCode)};SnapIfNeededOverlayOp.intersection=function(g0,g1){return overlayOp(g0,g1,OverlayOp.INTERSECTION)};SnapIfNeededOverlayOp.union=function(g0,g1){return overlayOp(g0,g1,OverlayOp.UNION)};SnapIfNeededOverlayOp.difference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.DIFFERENCE)};SnapIfNeededOverlayOp.symDifference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.SYMDIFFERENCE)};SnapIfNeededOverlayOp.prototype.geom=null;SnapIfNeededOverlayOp.prototype.getResultGeometry=function(opCode){var result=null;var isSuccess=false;var savedException=null;try{result=OverlayOp.overlayOp(this.geom[0],this.geom[1],opCode);var isValid=true;if(isValid)isSuccess=true}catch(ex){savedException=ex}if(!isSuccess){try{result=SnapOverlayOp.overlayOp(this.geom[0],this.geom[1],opCode)}catch(ex){throw savedException}}return result};jsts.operation.overlay.snap.SnapIfNeededOverlayOp=SnapIfNeededOverlayOp})();(function(){var GeometryExtracter=jsts.geom.util.GeometryExtracter;var CascadedPolygonUnion=jsts.operation.union.CascadedPolygonUnion;var PointGeometryUnion=jsts.operation.union.PointGeometryUnion;var OverlayOp=jsts.operation.overlay.OverlayOp;var SnapIfNeededOverlayOp=jsts.operation.overlay.snap.SnapIfNeededOverlayOp;var ArrayList=javascript.util.ArrayList;jsts.operation.union.UnaryUnionOp=function(geoms,geomFact){this.polygons=new ArrayList;this.lines=new ArrayList;this.points=new ArrayList;if(geomFact){this.geomFact=geomFact}this.extract(geoms)};jsts.operation.union.UnaryUnionOp.union=function(geoms,geomFact){var op=new jsts.operation.union.UnaryUnionOp(geoms,geomFact);return op.union()};jsts.operation.union.UnaryUnionOp.prototype.polygons=null;jsts.operation.union.UnaryUnionOp.prototype.lines=null;jsts.operation.union.UnaryUnionOp.prototype.points=null;jsts.operation.union.UnaryUnionOp.prototype.geomFact=null;jsts.operation.union.UnaryUnionOp.prototype.extract=function(geoms){if(geoms instanceof ArrayList){for(var i=geoms.iterator();i.hasNext();){var geom=i.next();this.extract(geom)}}else{if(this.geomFact===null){this.geomFact=geoms.getFactory()}GeometryExtracter.extract(geoms,jsts.geom.Polygon,this.polygons);GeometryExtracter.extract(geoms,jsts.geom.LineString,this.lines);GeometryExtracter.extract(geoms,jsts.geom.Point,this.points)}};jsts.operation.union.UnaryUnionOp.prototype.union=function(){if(this.geomFact===null){return null}var unionPoints=null;if(this.points.size()>0){var ptGeom=this.geomFact.buildGeometry(this.points);unionPoints=this.unionNoOpt(ptGeom)}var unionLines=null;if(this.lines.size()>0){var lineGeom=this.geomFact.buildGeometry(this.lines);unionLines=this.unionNoOpt(lineGeom)}var unionPolygons=null;if(this.polygons.size()>0){unionPolygons=CascadedPolygonUnion.union(this.polygons)}var unionLA=this.unionWithNull(unionLines,unionPolygons);var union=null;if(unionPoints===null){union=unionLA}else if(unionLA===null){union=unionPoints}else{union=PointGeometryUnion(unionPoints,unionLA)}if(union===null){return this.geomFact.createGeometryCollection(null)}return union};jsts.operation.union.UnaryUnionOp.prototype.unionWithNull=function(g0,g1){if(g0===null&&g1===null){return null}if(g1===null){return g0}if(g0===null){return g1}return g0.union(g1)};jsts.operation.union.UnaryUnionOp.prototype.unionNoOpt=function(g0){var empty=this.geomFact.createPoint(null);return SnapIfNeededOverlayOp.overlayOp(g0,empty,OverlayOp.UNION)}})();jsts.index.kdtree.KdNode=function(){this.left=null;this.right=null;this.count=1;if(arguments.length===2){this.initializeFromCoordinate.apply(this,arguments[0],arguments[1])}else if(arguments.length===3){this.initializeFromXY.apply(this,arguments[0],arguments[1],arguments[2])}};jsts.index.kdtree.KdNode.prototype.initializeFromXY=function(x,y,data){this.p=new jsts.geom.Coordinate(x,y);this.data=data};jsts.index.kdtree.KdNode.prototype.initializeFromCoordinate=function(p,data){this.p=p;this.data=data};jsts.index.kdtree.KdNode.prototype.getX=function(){return this.p.x};jsts.index.kdtree.KdNode.prototype.getY=function(){return this.p.y
};jsts.index.kdtree.KdNode.prototype.getCoordinate=function(){return this.p};jsts.index.kdtree.KdNode.prototype.getData=function(){return this.data};jsts.index.kdtree.KdNode.prototype.getLeft=function(){return this.left};jsts.index.kdtree.KdNode.prototype.getRight=function(){return this.right};jsts.index.kdtree.KdNode.prototype.increment=function(){this.count+=1};jsts.index.kdtree.KdNode.prototype.getCount=function(){return this.count};jsts.index.kdtree.KdNode.prototype.isRepeated=function(){return count>1};jsts.index.kdtree.KdNode.prototype.setLeft=function(left){this.left=left};jsts.index.kdtree.KdNode.prototype.setRight=function(right){this.right=right};jsts.algorithm.InteriorPointPoint=function(geometry){this.minDistance=Number.MAX_VALUE;this.interiorPoint=null;this.centroid=geometry.getCentroid().getCoordinate();this.add(geometry)};jsts.algorithm.InteriorPointPoint.prototype.add=function(geometry){if(geometry instanceof jsts.geom.Point){this.addPoint(geometry.getCoordinate())}else if(geometry instanceof jsts.geom.GeometryCollection){for(var i=0;i<geometry.getNumGeometries();i++){this.add(geometry.getGeometryN(i))}}};jsts.algorithm.InteriorPointPoint.prototype.addPoint=function(point){var dist=point.distance(this.centroid);if(dist<this.minDistance){this.interiorPoint=new jsts.geom.Coordinate(point);this.minDistance=dist}};jsts.algorithm.InteriorPointPoint.prototype.getInteriorPoint=function(){return this.interiorPoint};(function(){jsts.geom.MultiLineString=function(geometries,factory){this.geometries=geometries||[];this.factory=factory};jsts.geom.MultiLineString.prototype=new jsts.geom.GeometryCollection;jsts.geom.MultiLineString.constructor=jsts.geom.MultiLineString;jsts.geom.MultiLineString.prototype.getBoundary=function(){return new jsts.operation.BoundaryOp(this).getBoundary()};jsts.geom.MultiLineString.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}return jsts.geom.GeometryCollection.prototype.equalsExact.call(this,other,tolerance)};jsts.geom.MultiLineString.prototype.CLASS_NAME="jsts.geom.MultiLineString"})();(function(){var Interval=jsts.index.bintree.Interval;var Root=jsts.index.bintree.Root;var Bintree=function(){this.root=new Root;this.minExtent=1};Bintree.ensureExtent=function(itemInterval,minExtent){var min,max;min=itemInterval.getMin();max=itemInterval.getMax();if(min!==max){return itemInterval}if(min===max){min=min-minExtent/2;max=min+minExtent/2}return new Interval(min,max)};Bintree.prototype.depth=function(){if(this.root!==null){return this.root.depth()}return 0};Bintree.prototype.size=function(){if(this.root!==null){return this.root.size()}return 0};Bintree.prototype.nodeSize=function(){if(this.root!==null){return this.root.nodeSize()}return 0};Bintree.prototype.insert=function(itemInterval,item){this.collectStats(itemInterval);var insertInterval=Bintree.ensureExtent(itemInterval,this.minExtent);this.root.insert(insertInterval,item)};Bintree.prototype.remove=function(itemInterval,item){var insertInterval=Bintree.ensureExtent(itemInterval,this.minExtent);return this.root.remove(insertInterval,item)};Bintree.prototype.iterator=function(){var foundItems=new javascript.util.ArrayList;this.root.addAllItems(foundItems);return foundItems.iterator()};Bintree.prototype.query=function(){if(arguments.length===2){this.queryAndAdd(arguments[0],arguments[1])}else{var x=arguments[0];if(!x instanceof Interval){x=new Interval(x,x)}return this.queryInterval(x)}};Bintree.prototype.queryInterval=function(interval){var foundItems=new javascript.util.ArrayList;this.query(interval,foundItems);return foundItems};Bintree.prototype.queryAndAdd=function(interval,foundItems){this.root.addAllItemsFromOverlapping(interval,foundItems)};Bintree.prototype.collectStats=function(interval){var del=interval.getWidth();if(del<this.minExtent&&del>0){this.minExtent=del}};jsts.index.bintree.Bintree=Bintree})();jsts.algorithm.InteriorPointArea=function(geometry){this.factory;this.interiorPoint=null;this.maxWidth=0;this.factory=geometry.getFactory();this.add(geometry)};jsts.algorithm.InteriorPointArea.avg=function(a,b){return(a+b)/2};jsts.algorithm.InteriorPointArea.prototype.getInteriorPoint=function(){return this.interiorPoint};jsts.algorithm.InteriorPointArea.prototype.add=function(geometry){if(geometry instanceof jsts.geom.Polygon){this.addPolygon(geometry)}else if(geometry instanceof jsts.geom.GeometryCollection){for(var i=0;i<geometry.getNumGeometries();i++){this.add(geometry.getGeometryN(i))}}};jsts.algorithm.InteriorPointArea.prototype.addPolygon=function(geometry){if(geometry.isEmpty()){return}var intPt;var width=0;var bisector=this.horizontalBisector(geometry);if(bisector.getLength()==0){width=0;intPt=bisector.getCoordinate()}else{var intersections=bisector.intersection(geometry);var widestIntersection=this.widestGeometry(intersections);width=widestIntersection.getEnvelopeInternal().getWidth();intPt=this.centre(widestIntersection.getEnvelopeInternal())}if(this.interiorPoint==null||width>this.maxWidth){this.interiorPoint=intPt;this.maxWidth=width}};jsts.algorithm.InteriorPointArea.prototype.widestGeometry=function(obj){if(obj instanceof jsts.geom.GeometryCollection){var gc=obj;if(gc.isEmpty()){return gc}var widestGeometry=gc.getGeometryN(0);for(var i=1;i<gc.getNumGeometries();i++){if(gc.getGeometryN(i).getEnvelopeInternal().getWidth()>widestGeometry.getEnvelopeInternal().getWidth()){widestGeometry=gc.getGeometryN(i)}}return widestGeometry}else if(obj instanceof jsts.geom.Geometry){return obj}};jsts.algorithm.InteriorPointArea.prototype.horizontalBisector=function(geometry){var envelope=geometry.getEnvelopeInternal();var bisectY=jsts.algorithm.SafeBisectorFinder.getBisectorY(geometry);return this.factory.createLineString([new jsts.geom.Coordinate(envelope.getMinX(),bisectY),new jsts.geom.Coordinate(envelope.getMaxX(),bisectY)])};jsts.algorithm.InteriorPointArea.prototype.centre=function(envelope){return new jsts.geom.Coordinate(jsts.algorithm.InteriorPointArea.avg(envelope.getMinX(),envelope.getMaxX()),jsts.algorithm.InteriorPointArea.avg(envelope.getMinY(),envelope.getMaxY()))};jsts.algorithm.SafeBisectorFinder=function(poly){this.poly;this.centreY;this.hiY=Number.MAX_VALUE;this.loY=-Number.MAX_VALUE;this.poly=poly;this.hiY=poly.getEnvelopeInternal().getMaxY();this.loY=poly.getEnvelopeInternal().getMinY();this.centreY=jsts.algorithm.InteriorPointArea.avg(this.loY,this.hiY)};jsts.algorithm.SafeBisectorFinder.getBisectorY=function(poly){var finder=new jsts.algorithm.SafeBisectorFinder(poly);return finder.getBisectorY()};jsts.algorithm.SafeBisectorFinder.prototype.getBisectorY=function(){this.process(this.poly.getExteriorRing());for(var i=0;i<this.poly.getNumInteriorRing();i++){this.process(this.poly.getInteriorRingN(i))}var bisectY=jsts.algorithm.InteriorPointArea.avg(this.hiY,this.loY);return bisectY};jsts.algorithm.SafeBisectorFinder.prototype.process=function(line){var seq=line.getCoordinateSequence();for(var i=0;i<seq.length;i++){var y=seq[i].y;this.updateInterval(y)}};jsts.algorithm.SafeBisectorFinder.prototype.updateInterval=function(y){if(y<=this.centreY){if(y>this.loY){this.loY=y}}else if(y>this.centreY){if(y<this.hiY){this.hiY=y}}};jsts.operation.buffer.BufferParameters=function(quadrantSegments,endCapStyle,joinStyle,mitreLimit){if(quadrantSegments)this.setQuadrantSegments(quadrantSegments);if(endCapStyle)this.setEndCapStyle(endCapStyle);if(joinStyle)this.setJoinStyle(joinStyle);if(mitreLimit)this.setMitreLimit(mitreLimit)};jsts.operation.buffer.BufferParameters.CAP_ROUND=1;jsts.operation.buffer.BufferParameters.CAP_FLAT=2;jsts.operation.buffer.BufferParameters.CAP_SQUARE=3;jsts.operation.buffer.BufferParameters.JOIN_ROUND=1;jsts.operation.buffer.BufferParameters.JOIN_MITRE=2;jsts.operation.buffer.BufferParameters.JOIN_BEVEL=3;jsts.operation.buffer.BufferParameters.DEFAULT_QUADRANT_SEGMENTS=8;jsts.operation.buffer.BufferParameters.DEFAULT_MITRE_LIMIT=5;jsts.operation.buffer.BufferParameters.prototype.quadrantSegments=jsts.operation.buffer.BufferParameters.DEFAULT_QUADRANT_SEGMENTS;jsts.operation.buffer.BufferParameters.prototype.endCapStyle=jsts.operation.buffer.BufferParameters.CAP_ROUND;jsts.operation.buffer.BufferParameters.prototype.joinStyle=jsts.operation.buffer.BufferParameters.JOIN_ROUND;jsts.operation.buffer.BufferParameters.prototype.mitreLimit=jsts.operation.buffer.BufferParameters.DEFAULT_MITRE_LIMIT;jsts.operation.buffer.BufferParameters.prototype._isSingleSided=false;jsts.operation.buffer.BufferParameters.prototype.getQuadrantSegments=function(){return this.quadrantSegments};jsts.operation.buffer.BufferParameters.prototype.setQuadrantSegments=function(quadrantSegments){this.quadrantSegments=quadrantSegments};jsts.operation.buffer.BufferParameters.prototype.setQuadrantSegments=function(quadSegs){this.quadrantSegments=quadSegs;if(this.quadrantSegments===0)this.joinStyle=jsts.operation.buffer.BufferParameters.JOIN_BEVEL;if(this.quadrantSegments<0){this.joinStyle=jsts.operation.buffer.BufferParameters.JOIN_MITRE;this.mitreLimit=Math.abs(this.quadrantSegments)}if(quadSegs<=0){this.quadrantSegments=1}if(this.joinStyle!==jsts.operation.buffer.BufferParameters.JOIN_ROUND){this.quadrantSegments=jsts.operation.buffer.BufferParameters.DEFAULT_QUADRANT_SEGMENTS}};jsts.operation.buffer.BufferParameters.bufferDistanceError=function(quadSegs){var alpha=Math.PI/2/quadSegs;return 1-Math.cos(alpha/2)};jsts.operation.buffer.BufferParameters.prototype.getEndCapStyle=function(){return this.endCapStyle};jsts.operation.buffer.BufferParameters.prototype.setEndCapStyle=function(endCapStyle){this.endCapStyle=endCapStyle};jsts.operation.buffer.BufferParameters.prototype.getJoinStyle=function(){return this.joinStyle};jsts.operation.buffer.BufferParameters.prototype.setJoinStyle=function(joinStyle){this.joinStyle=joinStyle};jsts.operation.buffer.BufferParameters.prototype.getMitreLimit=function(){return this.mitreLimit};jsts.operation.buffer.BufferParameters.prototype.setMitreLimit=function(mitreLimit){this.mitreLimit=mitreLimit};jsts.operation.buffer.BufferParameters.prototype.setSingleSided=function(isSingleSided){this._isSingleSided=isSingleSided};jsts.operation.buffer.BufferParameters.prototype.isSingleSided=function(){return this._isSingleSided};jsts.operation.buffer.BufferBuilder=function(bufParams){this.bufParams=bufParams;this.edgeList=new jsts.geomgraph.EdgeList};jsts.operation.buffer.BufferBuilder.depthDelta=function(label){var lLoc=label.getLocation(0,jsts.geomgraph.Position.LEFT);var rLoc=label.getLocation(0,jsts.geomgraph.Position.RIGHT);if(lLoc===jsts.geom.Location.INTERIOR&&rLoc===jsts.geom.Location.EXTERIOR)return 1;else if(lLoc===jsts.geom.Location.EXTERIOR&&rLoc===jsts.geom.Location.INTERIOR)return-1;return 0};jsts.operation.buffer.BufferBuilder.prototype.bufParams=null;jsts.operation.buffer.BufferBuilder.prototype.workingPrecisionModel=null;jsts.operation.buffer.BufferBuilder.prototype.workingNoder=null;jsts.operation.buffer.BufferBuilder.prototype.geomFact=null;jsts.operation.buffer.BufferBuilder.prototype.graph=null;jsts.operation.buffer.BufferBuilder.prototype.edgeList=null;jsts.operation.buffer.BufferBuilder.prototype.setWorkingPrecisionModel=function(pm){this.workingPrecisionModel=pm};jsts.operation.buffer.BufferBuilder.prototype.setNoder=function(noder){this.workingNoder=noder};jsts.operation.buffer.BufferBuilder.prototype.buffer=function(g,distance){var precisionModel=this.workingPrecisionModel;if(precisionModel===null)precisionModel=g.getPrecisionModel();this.geomFact=g.getFactory();var curveBuilder=new jsts.operation.buffer.OffsetCurveBuilder(precisionModel,this.bufParams);var curveSetBuilder=new jsts.operation.buffer.OffsetCurveSetBuilder(g,distance,curveBuilder);var bufferSegStrList=curveSetBuilder.getCurves();if(bufferSegStrList.size()<=0){return this.createEmptyResultGeometry()}this.computeNodedEdges(bufferSegStrList,precisionModel);this.graph=new jsts.geomgraph.PlanarGraph(new jsts.operation.overlay.OverlayNodeFactory);this.graph.addEdges(this.edgeList.getEdges());var subgraphList=this.createSubgraphs(this.graph);var polyBuilder=new jsts.operation.overlay.PolygonBuilder(this.geomFact);this.buildSubgraphs(subgraphList,polyBuilder);var resultPolyList=polyBuilder.getPolygons();if(resultPolyList.size()<=0){return this.createEmptyResultGeometry()}var resultGeom=this.geomFact.buildGeometry(resultPolyList);return resultGeom};jsts.operation.buffer.BufferBuilder.prototype.getNoder=function(precisionModel){if(this.workingNoder!==null)return this.workingNoder;var noder=new jsts.noding.MCIndexNoder;var li=new jsts.algorithm.RobustLineIntersector;li.setPrecisionModel(precisionModel);noder.setSegmentIntersector(new jsts.noding.IntersectionAdder(li));return noder};jsts.operation.buffer.BufferBuilder.prototype.computeNodedEdges=function(bufferSegStrList,precisionModel){var noder=this.getNoder(precisionModel);noder.computeNodes(bufferSegStrList);var nodedSegStrings=noder.getNodedSubstrings();for(var i=nodedSegStrings.iterator();i.hasNext();){var segStr=i.next();var oldLabel=segStr.getData();var edge=new jsts.geomgraph.Edge(segStr.getCoordinates(),new jsts.geomgraph.Label(oldLabel));this.insertUniqueEdge(edge)}};jsts.operation.buffer.BufferBuilder.prototype.insertUniqueEdge=function(e){var existingEdge=this.edgeList.findEqualEdge(e);if(existingEdge!=null){var existingLabel=existingEdge.getLabel();var labelToMerge=e.getLabel();if(!existingEdge.isPointwiseEqual(e)){labelToMerge=new jsts.geomgraph.Label(e.getLabel());labelToMerge.flip()}existingLabel.merge(labelToMerge);var mergeDelta=jsts.operation.buffer.BufferBuilder.depthDelta(labelToMerge);var existingDelta=existingEdge.getDepthDelta();var newDelta=existingDelta+mergeDelta;existingEdge.setDepthDelta(newDelta)}else{this.edgeList.add(e);e.setDepthDelta(jsts.operation.buffer.BufferBuilder.depthDelta(e.getLabel()))}};jsts.operation.buffer.BufferBuilder.prototype.createSubgraphs=function(graph){var subgraphList=[];for(var i=graph.getNodes().iterator();i.hasNext();){var node=i.next();if(!node.isVisited()){var subgraph=new jsts.operation.buffer.BufferSubgraph;subgraph.create(node);subgraphList.push(subgraph)}}var compare=function(a,b){return a.compareTo(b)};subgraphList.sort(compare);subgraphList.reverse();return subgraphList};jsts.operation.buffer.BufferBuilder.prototype.buildSubgraphs=function(subgraphList,polyBuilder){var processedGraphs=[];for(var i=0;i<subgraphList.length;i++){var subgraph=subgraphList[i];var p=subgraph.getRightmostCoordinate();var locater=new jsts.operation.buffer.SubgraphDepthLocater(processedGraphs);var outsideDepth=locater.getDepth(p);subgraph.computeDepth(outsideDepth);subgraph.findResultEdges();processedGraphs.push(subgraph);polyBuilder.add(subgraph.getDirectedEdges(),subgraph.getNodes())}};jsts.operation.buffer.BufferBuilder.convertSegStrings=function(it){var fact=new jsts.geom.GeometryFactory;var lines=new javascript.util.ArrayList;while(it.hasNext()){var ss=it.next();var line=fact.createLineString(ss.getCoordinates());lines.add(line)}return fact.buildGeometry(lines)};jsts.operation.buffer.BufferBuilder.prototype.createEmptyResultGeometry=function(){var emptyGeom=this.geomFact.createPolygon(null,null);return emptyGeom};jsts.noding.SegmentPointComparator=function(){};jsts.noding.SegmentPointComparator.compare=function(octant,p0,p1){if(p0.equals2D(p1))return 0;var xSign=jsts.noding.SegmentPointComparator.relativeSign(p0.x,p1.x);var ySign=jsts.noding.SegmentPointComparator.relativeSign(p0.y,p1.y);switch(octant){case 0:return jsts.noding.SegmentPointComparator.compareValue(xSign,ySign);case 1:return jsts.noding.SegmentPointComparator.compareValue(ySign,xSign);case 2:return jsts.noding.SegmentPointComparator.compareValue(ySign,-xSign);case 3:return jsts.noding.SegmentPointComparator.compareValue(-xSign,ySign);case 4:return jsts.noding.SegmentPointComparator.compareValue(-xSign,-ySign);case 5:return jsts.noding.SegmentPointComparator.compareValue(-ySign,-xSign);case 6:return jsts.noding.SegmentPointComparator.compareValue(-ySign,xSign);case 7:return jsts.noding.SegmentPointComparator.compareValue(xSign,-ySign)}return 0};jsts.noding.SegmentPointComparator.relativeSign=function(x0,x1){if(x0<x1)return-1;if(x0>x1)return 1;return 0};jsts.noding.SegmentPointComparator.compareValue=function(compareSign0,compareSign1){if(compareSign0<0)return-1;if(compareSign0>0)return 1;if(compareSign1<0)return-1;if(compareSign1>0)return 1;return 0};jsts.operation.relate.RelateOp=function(){jsts.operation.GeometryGraphOperation.apply(this,arguments);this._relate=new jsts.operation.relate.RelateComputer(this.arg)};jsts.operation.relate.RelateOp.prototype=new jsts.operation.GeometryGraphOperation;jsts.operation.relate.RelateOp.relate=function(a,b,boundaryNodeRule){var relOp=new jsts.operation.relate.RelateOp(a,b,boundaryNodeRule);var im=relOp.getIntersectionMatrix();return im};jsts.operation.relate.RelateOp.prototype._relate=null;jsts.operation.relate.RelateOp.prototype.getIntersectionMatrix=function(){return this._relate.computeIM()};jsts.index.chain.MonotoneChain=function(pts,start,end,context){this.pts=pts;this.start=start;this.end=end;this.context=context};jsts.index.chain.MonotoneChain.prototype.pts=null;jsts.index.chain.MonotoneChain.prototype.start=null;jsts.index.chain.MonotoneChain.prototype.end=null;jsts.index.chain.MonotoneChain.prototype.env=null;jsts.index.chain.MonotoneChain.prototype.context=null;jsts.index.chain.MonotoneChain.prototype.id=null;jsts.index.chain.MonotoneChain.prototype.setId=function(id){this.id=id};jsts.index.chain.MonotoneChain.prototype.getId=function(){return this.id};jsts.index.chain.MonotoneChain.prototype.getContext=function(){return this.context};jsts.index.chain.MonotoneChain.prototype.getEnvelope=function(){if(this.env==null){var p0=this.pts[this.start];var p1=this.pts[this.end];this.env=new jsts.geom.Envelope(p0,p1)}return this.env};jsts.index.chain.MonotoneChain.prototype.getStartIndex=function(){return this.start};jsts.index.chain.MonotoneChain.prototype.getEndIndex=function(){return this.end};jsts.index.chain.MonotoneChain.prototype.getLineSegment=function(index,ls){ls.p0=this.pts[index];ls.p1=this.pts[index+1]};jsts.index.chain.MonotoneChain.prototype.getCoordinates=function(){var coord=[];var index=0;for(var i=this.start;i<=this.end;i++){coord[index++]=this.pts[i]}return coord};jsts.index.chain.MonotoneChain.prototype.select=function(searchEnv,mcs){this.computeSelect2(searchEnv,this.start,this.end,mcs)};jsts.index.chain.MonotoneChain.prototype.computeSelect2=function(searchEnv,start0,end0,mcs){var p0=this.pts[start0];var p1=this.pts[end0];mcs.tempEnv1.init(p0,p1);if(end0-start0===1){mcs.select(this,start0);return}if(!searchEnv.intersects(mcs.tempEnv1))return;var mid=parseInt((start0+end0)/2);if(start0<mid){this.computeSelect2(searchEnv,start0,mid,mcs)}if(mid<end0){this.computeSelect2(searchEnv,mid,end0,mcs)}};jsts.index.chain.MonotoneChain.prototype.computeOverlaps=function(mc,mco){if(arguments.length===6){return this.computeOverlaps2.apply(this,arguments)}this.computeOverlaps2(this.start,this.end,mc,mc.start,mc.end,mco)};jsts.index.chain.MonotoneChain.prototype.computeOverlaps2=function(start0,end0,mc,start1,end1,mco){var p00=this.pts[start0];var p01=this.pts[end0];var p10=mc.pts[start1];var p11=mc.pts[end1];if(end0-start0===1&&end1-start1===1){mco.overlap(this,start0,mc,start1);return}mco.tempEnv1.init(p00,p01);mco.tempEnv2.init(p10,p11);if(!mco.tempEnv1.intersects(mco.tempEnv2))return;var mid0=parseInt((start0+end0)/2);var mid1=parseInt((start1+end1)/2);if(start0<mid0){if(start1<mid1)this.computeOverlaps2(start0,mid0,mc,start1,mid1,mco);if(mid1<end1)this.computeOverlaps2(start0,mid0,mc,mid1,end1,mco)}if(mid0<end0){if(start1<mid1)this.computeOverlaps2(mid0,end0,mc,start1,mid1,mco);if(mid1<end1)this.computeOverlaps2(mid0,end0,mc,mid1,end1,mco)}};jsts.algorithm.HCoordinate=function(){this.x=0;this.y=0;this.w=1;if(arguments.length===1){this.initFrom1Coordinate(arguments[0])}else if(arguments.length===2&&arguments[0]instanceof jsts.geom.Coordinate){this.initFrom2Coordinates(arguments[0],arguments[1])}else if(arguments.length===2&&arguments[0]instanceof jsts.algorithm.HCoordinate){this.initFrom2HCoordinates(arguments[0],arguments[1])}else if(arguments.length===2){this.initFromXY(arguments[0],arguments[1])}else if(arguments.length===3){this.initFromXYW(arguments[0],arguments[1],arguments[2])}else if(arguments.length===4){this.initFromXYW(arguments[0],arguments[1],arguments[2],arguments[3])}};jsts.algorithm.HCoordinate.intersection=function(p1,p2,q1,q2){var px,py,pw,qx,qy,qw,x,y,w,xInt,yInt;px=p1.y-p2.y;py=p2.x-p1.x;pw=p1.x*p2.y-p2.x*p1.y;qx=q1.y-q2.y;qy=q2.x-q1.x;qw=q1.x*q2.y-q2.x*q1.y;x=py*qw-qy*pw;y=qx*pw-px*qw;w=px*qy-qx*py;xInt=x/w;yInt=y/w;if(!isFinite(xInt)||!isFinite(yInt)){throw new jsts.error.NotRepresentableError}return new jsts.geom.Coordinate(xInt,yInt)};jsts.algorithm.HCoordinate.prototype.initFrom1Coordinate=function(p){this.x=p.x;this.y=p.y;this.w=1};jsts.algorithm.HCoordinate.prototype.initFrom2Coordinates=function(p1,p2){this.x=p1.y-p2.y;this.y=p2.x-p1.x;this.w=p1.x*p2.y-p2.x*p1.y};jsts.algorithm.HCoordinate.prototype.initFrom2HCoordinates=function(p1,p2){this.x=p1.y*p2.w-p2.y*p1.w;this.y=p2.x*p1.w-p1.x*p2.w;this.w=p1.x*p2.y-p2.x*p1.y};jsts.algorithm.HCoordinate.prototype.initFromXYW=function(x,y,w){this.x=x;this.y=y;this.w=w};jsts.algorithm.HCoordinate.prototype.initFromXY=function(x,y){this.x=x;this.y=y;this.w=1};jsts.algorithm.HCoordinate.prototype.initFrom4Coordinates=function(p1,p2,q1,q2){var px,py,pw,qx,qy,qw;px=p1.y-p2.y;py=p2.x-p1.x;pw=p1.x*p2.y-p2.x*p1.y;qx=q1.y-q2.y;qy=q2.x-q1.x;qw=q1.x*q2.y-q2.x*q1.y;this.x=py*qw-qy*pw;this.y=qx*pw-px*qw;this.w=px*qy-qx*py};jsts.algorithm.HCoordinate.prototype.getX=function(){var a=this.x/this.w;if(!isFinite(a)){throw new jsts.error.NotRepresentableError}return a};jsts.algorithm.HCoordinate.prototype.getY=function(){var a=this.y/this.w;if(!isFinite(a)){throw new jsts.error.NotRepresentableError}return a};jsts.algorithm.HCoordinate.prototype.getCoordinate=function(){var p=new jsts.geom.Coordinate;p.x=this.getX();p.y=this.getY();return p};(function(){var Location=jsts.geom.Location;var Dimension=jsts.geom.Dimension;jsts.geom.IntersectionMatrix=function(elements){var other=elements;if(elements===undefined||elements===null){this.matrix=[[],[],[]];this.setAll(Dimension.FALSE)}else if(typeof elements==="string"){this.set(elements)}else if(other instanceof jsts.geom.IntersectionMatrix){this.matrix[Location.INTERIOR][Location.INTERIOR]=other.matrix[Location.INTERIOR][Location.INTERIOR];this.matrix[Location.INTERIOR][Location.BOUNDARY]=other.matrix[Location.INTERIOR][Location.BOUNDARY];this.matrix[Location.INTERIOR][Location.EXTERIOR]=other.matrix[Location.INTERIOR][Location.EXTERIOR];this.matrix[Location.BOUNDARY][Location.INTERIOR]=other.matrix[Location.BOUNDARY][Location.INTERIOR];this.matrix[Location.BOUNDARY][Location.BOUNDARY]=other.matrix[Location.BOUNDARY][Location.BOUNDARY];this.matrix[Location.BOUNDARY][Location.EXTERIOR]=other.matrix[Location.BOUNDARY][Location.EXTERIOR];this.matrix[Location.EXTERIOR][Location.INTERIOR]=other.matrix[Location.EXTERIOR][Location.INTERIOR];this.matrix[Location.EXTERIOR][Location.BOUNDARY]=other.matrix[Location.EXTERIOR][Location.BOUNDARY];this.matrix[Location.EXTERIOR][Location.EXTERIOR]=other.matrix[Location.EXTERIOR][Location.EXTERIOR]}};jsts.geom.IntersectionMatrix.prototype.matrix=null;jsts.geom.IntersectionMatrix.prototype.add=function(im){var i,j;for(i=0;i<3;i++){for(j=0;j<3;j++){this.setAtLeast(i,j,im.get(i,j))}}};jsts.geom.IntersectionMatrix.matches=function(actualDimensionValue,requiredDimensionSymbol){if(typeof actualDimensionValue==="string"){return jsts.geom.IntersectionMatrix.matches2.call(this,arguments)}if(requiredDimensionSymbol==="*"){return true}if(requiredDimensionSymbol==="T"&&(actualDimensionValue>=0||actualDimensionValue===Dimension.TRUE)){return true}if(requiredDimensionSymbol==="F"&&actualDimensionValue===Dimension.FALSE){return true}if(requiredDimensionSymbol==="0"&&actualDimensionValue===Dimension.P){return true}if(requiredDimensionSymbol==="1"&&actualDimensionValue===Dimension.L){return true}if(requiredDimensionSymbol==="2"&&actualDimensionValue===Dimension.A){return true}return false};jsts.geom.IntersectionMatrix.matches2=function(actualDimensionSymbols,requiredDimensionSymbols){var m=new jsts.geom.IntersectionMatrix(actualDimensionSymbols);return m.matches(requiredDimensionSymbols)};jsts.geom.IntersectionMatrix.prototype.set=function(row,column,dimensionValue){if(typeof row==="string"){this.set2(row);return}this.matrix[row][column]=dimensionValue};jsts.geom.IntersectionMatrix.prototype.set2=function(dimensionSymbols){for(var i=0;i<dimensionSymbols.length();i++){var row=i/3;var col=i%3;this.matrix[row][col]=Dimension.toDimensionValue(dimensionSymbols.charAt(i))}};jsts.geom.IntersectionMatrix.prototype.setAtLeast=function(row,column,minimumDimensionValue){if(arguments.length===1){this.setAtLeast2(arguments[0]);return}if(this.matrix[row][column]<minimumDimensionValue){this.matrix[row][column]=minimumDimensionValue}};jsts.geom.IntersectionMatrix.prototype.setAtLeastIfValid=function(row,column,minimumDimensionValue){if(row>=0&&column>=0){this.setAtLeast(row,column,minimumDimensionValue)}};jsts.geom.IntersectionMatrix.prototype.setAtLeast2=function(minimumDimensionSymbols){var i;for(i=0;i<minimumDimensionSymbols.length;i++){var row=parseInt(i/3);var col=parseInt(i%3);this.setAtLeast(row,col,jsts.geom.Dimension.toDimensionValue(minimumDimensionSymbols.charAt(i)))}};jsts.geom.IntersectionMatrix.prototype.setAll=function(dimensionValue){var ai,bi;for(ai=0;ai<3;ai++){for(bi=0;bi<3;bi++){this.matrix[ai][bi]=dimensionValue}}};jsts.geom.IntersectionMatrix.prototype.get=function(row,column){return this.matrix[row][column]};jsts.geom.IntersectionMatrix.prototype.isDisjoint=function(){return this.matrix[Location.INTERIOR][Location.INTERIOR]===Dimension.FALSE&&this.matrix[Location.INTERIOR][Location.BOUNDARY]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.INTERIOR]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.BOUNDARY]===Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isIntersects=function(){return!this.isDisjoint()};jsts.geom.IntersectionMatrix.prototype.isTouches=function(dimensionOfGeometryA,dimensionOfGeometryB){if(dimensionOfGeometryA>dimensionOfGeometryB){return this.isTouches(dimensionOfGeometryB,dimensionOfGeometryA)}if(dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB==Dimension.A||dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.L||dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.A||dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.A||dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.L){return this.matrix[Location.INTERIOR][Location.INTERIOR]===Dimension.FALSE&&(jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.BOUNDARY],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.BOUNDARY],"T"))}return false};jsts.geom.IntersectionMatrix.prototype.isCrosses=function(dimensionOfGeometryA,dimensionOfGeometryB){if(dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.L||dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.A||dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.A){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.EXTERIOR],"T")}if(dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.P||dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB==Dimension.P||dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB==Dimension.L){return jsts.geom.IntersectionMatrix.matches(matrix[Location.INTERIOR][Location.INTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.EXTERIOR][Location.INTERIOR],"T")}if(dimensionOfGeometryA===Dimension.L&&dimensionOfGeometryB===Dimension.L){return this.matrix[Location.INTERIOR][Location.INTERIOR]===0}return false};jsts.geom.IntersectionMatrix.prototype.isWithin=function(){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&this.matrix[Location.INTERIOR][Location.EXTERIOR]==Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.EXTERIOR]==Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isContains=function(){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&this.matrix[Location.EXTERIOR][Location.INTERIOR]==Dimension.FALSE&&this.matrix[Location.EXTERIOR][Location.BOUNDARY]==Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isCovers=function(){var hasPointInCommon=jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.BOUNDARY],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.BOUNDARY],"T");return hasPointInCommon&&this.matrix[Location.EXTERIOR][Location.INTERIOR]==Dimension.FALSE&&this.matrix[Location.EXTERIOR][Location.BOUNDARY]==Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isCoveredBy=function(){var hasPointInCommon=jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.BOUNDARY],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.BOUNDARY],"T");return hasPointInCommon&&this.matrix[Location.INTERIOR][Location.EXTERIOR]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.EXTERIOR]===Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isEquals=function(dimensionOfGeometryA,dimensionOfGeometryB){if(dimensionOfGeometryA!==dimensionOfGeometryB){return false}return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&this.matrix[Location.EXTERIOR][Location.INTERIOR]===Dimension.FALSE&&this.matrix[Location.INTERIOR][Location.EXTERIOR]===Dimension.FALSE&&this.matrix[Location.EXTERIOR][Location.BOUNDARY]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.EXTERIOR]===Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isOverlaps=function(dimensionOfGeometryA,dimensionOfGeometryB){if(dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB===Dimension.P||dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB===Dimension.A){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.EXTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.EXTERIOR][Location.INTERIOR],"T")}if(dimensionOfGeometryA===Dimension.L&&dimensionOfGeometryB===Dimension.L){return this.matrix[Location.INTERIOR][Location.INTERIOR]==1&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.EXTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.EXTERIOR][Location.INTERIOR],"T")}return false};jsts.geom.IntersectionMatrix.prototype.matches=function(requiredDimensionSymbols){if(requiredDimensionSymbols.length!=9){throw new jsts.error.IllegalArgumentException("Should be length 9: "+requiredDimensionSymbols)}for(var ai=0;ai<3;ai++){for(var bi=0;bi<3;bi++){if(!jsts.geom.IntersectionMatrix.matches(this.matrix[ai][bi],requiredDimensionSymbols.charAt(3*ai+bi))){return false}}}return true};jsts.geom.IntersectionMatrix.prototype.transpose=function(){var temp=matrix[1][0];this.matrix[1][0]=this.matrix[0][1];
this.matrix[0][1]=temp;temp=this.matrix[2][0];this.matrix[2][0]=this.matrix[0][2];this.matrix[0][2]=temp;temp=this.matrix[2][1];this.matrix[2][1]=this.matrix[1][2];this.matrix[1][2]=temp;return this};jsts.geom.IntersectionMatrix.prototype.toString=function(){var ai,bi,buf="";for(ai=0;ai<3;ai++){for(bi=0;bi<3;bi++){buf+=Dimension.toDimensionSymbol(this.matrix[ai][bi])}}return buf}})();jsts.triangulate.quadedge.LastFoundQuadEdgeLocator=function(subdiv){this.subdiv=subdiv;this.lastEdge=null;this.init()};jsts.triangulate.quadedge.LastFoundQuadEdgeLocator.prototype.init=function(){this.lastEdge=this.findEdge()};jsts.triangulate.quadedge.LastFoundQuadEdgeLocator.prototype.findEdge=function(){var edges=this.subdiv.getEdges();return edges[0]};jsts.triangulate.quadedge.LastFoundQuadEdgeLocator.prototype.locate=function(v){if(!this.lastEdge.isLive()){this.init()}var e=this.subdiv.locateFromEdge(v,this.lastEdge);this.lastEdge=e;return e};jsts.noding.SegmentNodeList=function(edge){this.nodeMap=new javascript.util.TreeMap;this.edge=edge};jsts.noding.SegmentNodeList.prototype.nodeMap=null;jsts.noding.SegmentNodeList.prototype.iterator=function(){return this.nodeMap.values().iterator()};jsts.noding.SegmentNodeList.prototype.edge=null;jsts.noding.SegmentNodeList.prototype.getEdge=function(){return this.edge};jsts.noding.SegmentNodeList.prototype.add=function(intPt,segmentIndex){var eiNew=new jsts.noding.SegmentNode(this.edge,intPt,segmentIndex,this.edge.getSegmentOctant(segmentIndex));var ei=this.nodeMap.get(eiNew);if(ei!==null){jsts.util.Assert.isTrue(ei.coord.equals2D(intPt),"Found equal nodes with different coordinates");return ei}this.nodeMap.put(eiNew,eiNew);return eiNew};jsts.noding.SegmentNodeList.prototype.addEndpoints=function(){var maxSegIndex=this.edge.size()-1;this.add(this.edge.getCoordinate(0),0);this.add(this.edge.getCoordinate(maxSegIndex),maxSegIndex)};jsts.noding.SegmentNodeList.prototype.addCollapsedNodes=function(){var collapsedVertexIndexes=[];this.findCollapsesFromInsertedNodes(collapsedVertexIndexes);this.findCollapsesFromExistingVertices(collapsedVertexIndexes);for(var i=0;i<collapsedVertexIndexes.length;i++){var vertexIndex=collapsedVertexIndexes[i];this.add(this.edge.getCoordinate(vertexIndex),vertexIndex)}};jsts.noding.SegmentNodeList.prototype.findCollapsesFromExistingVertices=function(collapsedVertexIndexes){for(var i=0;i<this.edge.size()-2;i++){var p0=this.edge.getCoordinate(i);var p1=this.edge.getCoordinate(i+1);var p2=this.edge.getCoordinate(i+2);if(p0.equals2D(p2)){collapsedVertexIndexes.push(i+1)}}};jsts.noding.SegmentNodeList.prototype.findCollapsesFromInsertedNodes=function(collapsedVertexIndexes){var collapsedVertexIndex=[null];var it=this.iterator();var eiPrev=it.next();while(it.hasNext()){var ei=it.next();var isCollapsed=this.findCollapseIndex(eiPrev,ei,collapsedVertexIndex);if(isCollapsed)collapsedVertexIndexes.push(collapsedVertexIndex[0]);eiPrev=ei}};jsts.noding.SegmentNodeList.prototype.findCollapseIndex=function(ei0,ei1,collapsedVertexIndex){if(!ei0.coord.equals2D(ei1.coord))return false;var numVerticesBetween=ei1.segmentIndex-ei0.segmentIndex;if(!ei1.isInterior()){numVerticesBetween--}if(numVerticesBetween===1){collapsedVertexIndex[0]=ei0.segmentIndex+1;return true}return false};jsts.noding.SegmentNodeList.prototype.addSplitEdges=function(edgeList){this.addEndpoints();this.addCollapsedNodes();var it=this.iterator();var eiPrev=it.next();while(it.hasNext()){var ei=it.next();var newEdge=this.createSplitEdge(eiPrev,ei);edgeList.add(newEdge);eiPrev=ei}};jsts.noding.SegmentNodeList.prototype.checkSplitEdgesCorrectness=function(splitEdges){var edgePts=edge.getCoordinates();var split0=splitEdges[0];var pt0=split0.getCoordinate(0);if(!pt0.equals2D(edgePts[0]))throw new Error("bad split edge start point at "+pt0);var splitn=splitEdges[splitEdges.length-1];var splitnPts=splitn.getCoordinates();var ptn=splitnPts[splitnPts.length-1];if(!ptn.equals2D(edgePts[edgePts.length-1]))throw new Error("bad split edge end point at "+ptn)};jsts.noding.SegmentNodeList.prototype.createSplitEdge=function(ei0,ei1){var npts=ei1.segmentIndex-ei0.segmentIndex+2;var lastSegStartPt=this.edge.getCoordinate(ei1.segmentIndex);var useIntPt1=ei1.isInterior()||!ei1.coord.equals2D(lastSegStartPt);if(!useIntPt1){npts--}var pts=[];var ipt=0;pts[ipt++]=new jsts.geom.Coordinate(ei0.coord);for(var i=ei0.segmentIndex+1;i<=ei1.segmentIndex;i++){pts[ipt++]=this.edge.getCoordinate(i)}if(useIntPt1)pts[ipt]=ei1.coord;return new jsts.noding.NodedSegmentString(pts,this.edge.getData())};jsts.io.WKTWriter=function(){this.parser=new jsts.io.WKTParser(this.geometryFactory)};jsts.io.WKTWriter.prototype.write=function(geometry){var wkt=this.parser.write(geometry);return wkt};jsts.io.WKTWriter.toLineString=function(p0,p1){if(arguments.length!==2){throw new jsts.error.NotImplementedError}return"LINESTRING ( "+p0.x+" "+p0.y+", "+p1.x+" "+p1.y+" )"};jsts.io.WKTReader=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory;this.precisionModel=this.geometryFactory.getPrecisionModel();this.parser=new jsts.io.WKTParser(this.geometryFactory)};jsts.io.WKTReader.prototype.read=function(wkt){var geometry=this.parser.read(wkt);if(this.precisionModel.getType()===jsts.geom.PrecisionModel.FIXED){this.reducePrecision(geometry)}return geometry};jsts.io.WKTReader.prototype.reducePrecision=function(geometry){var i,len;if(geometry.coordinate){this.precisionModel.makePrecise(geometry.coordinate)}else if(geometry.points){for(i=0,len=geometry.points.length;i<len;i++){this.precisionModel.makePrecise(geometry.points[i])}}else if(geometry.geometries){for(i=0,len=geometry.geometries.length;i<len;i++){this.reducePrecision(geometry.geometries[i])}}};jsts.triangulate.quadedge.QuadEdgeSubdivision=function(env,tolerance){this.tolerance=tolerance;this.edgeCoincidenceTolerance=tolerance/jsts.triangulate.quadedge.QuadEdgeSubdivision.EDGE_COINCIDENCE_TOL_FACTOR;this.visitedKey=0;this.quadEdges=[];this.startingEdge;this.tolerance;this.edgeCoincidenceTolerance;this.frameEnv;this.locator=null;this.seg=new jsts.geom.LineSegment;this.triEdges=new Array(3);this.frameVertex=new Array(3);this.createFrame(env);this.startingEdge=this.initSubdiv();this.locator=new jsts.triangulate.quadedge.LastFoundQuadEdgeLocator(this)};jsts.triangulate.quadedge.QuadEdgeSubdivision.EDGE_COINCIDENCE_TOL_FACTOR=1e3;jsts.triangulate.quadedge.QuadEdgeSubdivision.getTriangleEdges=function(startQE,triEdge){triEdge[0]=startQE;triEdge[1]=triEdge[0].lNext();triEdge[2]=triEdge[1].lNext();if(triEdge[2].lNext()!=triEdge[0]){throw new jsts.IllegalArgumentError("Edges do not form a triangle")}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.createFrame=function(env){var deltaX,deltaY,offset;deltaX=env.getWidth();deltaY=env.getHeight();offset=0;if(deltaX>deltaY){offset=deltaX*10}else{offset=deltaY*10}this.frameVertex[0]=new jsts.triangulate.quadedge.Vertex((env.getMaxX()+env.getMinX())/2,env.getMaxY()+offset);this.frameVertex[1]=new jsts.triangulate.quadedge.Vertex(env.getMinX()-offset,env.getMinY()-offset);this.frameVertex[2]=new jsts.triangulate.quadedge.Vertex(env.getMaxX()+offset,env.getMinY()-offset);this.frameEnv=new jsts.geom.Envelope(this.frameVertex[0].getCoordinate(),this.frameVertex[1].getCoordinate());this.frameEnv.expandToInclude(this.frameVertex[2].getCoordinate())};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.initSubdiv=function(){var ea,eb,ec;ea=this.makeEdge(this.frameVertex[0],this.frameVertex[1]);eb=this.makeEdge(this.frameVertex[1],this.frameVertex[2]);jsts.triangulate.quadedge.QuadEdge.splice(ea.sym(),eb);ec=this.makeEdge(this.frameVertex[2],this.frameVertex[0]);jsts.triangulate.quadedge.QuadEdge.splice(eb.sym(),ec);jsts.triangulate.quadedge.QuadEdge.splice(ec.sym(),ea);return ea};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTolerance=function(){return this.tolerance};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getEnvelope=function(){return new jsts.geom.Envelope(this.frameEnv)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getEdges=function(){if(arguments.length>0){return this.getEdgesByFactory(arguments[0])}else{return this.quadEdges}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.setLocator=function(locator){this.locator=locator};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.makeEdge=function(o,d){var q=jsts.triangulate.quadedge.QuadEdge.makeEdge(o,d);this.quadEdges.push(q);return q};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.connect=function(a,b){var q=jsts.triangulate.quadedge.QuadEdge.connect(a,b);this.quadEdges.push(q);return q};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.delete_jsts=function(e){jsts.triangulate.quadedge.QuadEdge.splice(e,e.oPrev());jsts.triangulate.quadedge.QuadEdge.splice(e.sym(),e.sym().oPrev());var eSym,eRot,eRotSym;e.eSym=e.sym();eRot=e.rot;eRotSym=e.rot.sym();var idx=this.quadEdges.indexOf(e);if(idx!==-1){this.quadEdges.splice(idx,1)}idx=this.quadEdges.indexOf(eSym);if(idx!==-1){this.quadEdges.splice(idx,1)}idx=this.quadEdges.indexOf(eRot);if(idx!==-1){this.quadEdges.splice(idx,1)}idx=this.quadEdges.indexOf(eRotSym);if(idx!==-1){this.quadEdges.splice(idx,1)}e.delete_jsts();eSym.delete_jsts();eRot.delete_jsts();eRotSym.delete_jsts()};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateFromEdge=function(v,startEdge){var iter=0,maxIter=this.quadEdges.length,e;e=startEdge;while(true){iter++;if(iter>maxIter){throw new jsts.error.LocateFailureError(e.toLineSegment())}if(v.equals(e.orig())||v.equals(e.dest())){break}else if(v.rightOf(e)){e=e.sym()}else if(!v.rightOf(e.oNext())){e=e.oNext()}else if(!v.rightOf(e.dPrev())){e=e.dPrev()}else{break}}return e};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locate=function(){if(arguments.length===1){if(arguments[0]instanceof jsts.triangulate.quadedge.Vertex){return this.locateByVertex(arguments[0])}else{return this.locateByCoordinate(arguments[0])}}else{return this.locateByCoordinates(arguments[0],arguments[1])}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateByVertex=function(v){return this.locator.locate(v)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateByCoordinate=function(p){return this.locator.locate(new jsts.triangulate.quadedge.Vertex(p))};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateByCoordinates=function(p0,p1){var e,base,locEdge;var e=this.locator.locate(new jsts.triangulate.quadedge.Vertex(p0));if(e===null){return null}base=e;if(e.dest().getCoordinate().equals2D(p0)){base=e.sym()}locEdge=base;do{if(locEdge.dest().getCoordinate().equals2D(p1)){return locEdge}locEdge=locEdge.oNext()}while(locEdge!=base);return null};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.insertSite=function(v){var e,base,startEdge;e=this.locate(v);if(v.equals(e.orig(),this.tolerance)||v.equals(e.dest(),this.tolerance)){return e}base=this.makeEdge(e.orig(),v);jsts.triangulate.quadedge.QuadEdge.splice(base,e);startEdge=base;do{base=this.connect(e,base.sym());e=base.oPrev()}while(e.lNext()!=startEdge);return startEdge};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isFrameEdge=function(e){if(this.isFrameVertex(e.orig())||this.isFrameVertex(e.dest())){return true}return false};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isFrameBorderEdge=function(e){var leftTri,rightTri,vLeftTriOther,vRightTriOther;leftTri=new Array(3);this.getTriangleEdges(e,leftTri);rightTri=new Array(3);this.getTriangleEdges(e.sym(),rightTri);vLeftTriOther=e.lNext().dest();if(this.isFrameVertex(vLeftTriOther)){return true}vRightTriOther=e.sym().lNext().dest();if(this.isFrameVertex(vRightTriOther)){return true}return false};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isFrameVertex=function(v){if(v.equals(this.frameVertex[0])){return true}if(v.equals(this.frameVertex[1])){return true}if(v.equals(this.frameVertex[2])){return true}return false};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isOnEdge=function(e,p){this.seg.setCoordinates(e.orig().getCoordinate(),e.dest().getCoordinate());var dist=this.seg.distance(p);return dist<this.edgeCoincidenceTolerance};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isVertexOfEdge=function(e,v){if(v.equals(e.orig(),this.tolerance)||v.equals(e.dest(),this.tolerance)){return true}return false};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVertices=function(includeFrame){var vertices=[],i,il,qe,v,vd;i=0,il=this.quadEdges.length;for(i;i<il;i++){qe=this.quadEdges[i];v=qe.orig();if(includeFrame||!this.isFrameVertex(v)){vertices.push(v)}vd=qe.dest();if(includeFrame||!this.isFrameVertex(vd)){vertices.push(vd)}}return vertices};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVertexUniqueEdges=function(includeFrame){var edges,visitedVertices,i,il,qe,v,qd,vd;edges=[];visitedVertices=[];i=0,il=this.quadEdges.length;for(i;i<il;i++){qe=this.quadEdges[i];v=qe.orig();if(visitedVertices.indexOf(v)===-1){visitedVertices.push(v);if(includeFrame||!this.isFrameVertex(v)){edges.push(qe)}}qd=qe.sym();vd=qd.orig();if(visitedVertices.indexOf(vd)===-1){visitedVertices.push(vd);if(includeFrame||!this.isFrameVertex(vd)){edges.push(qd)}}}return edges};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getPrimaryEdges=function(includeFrame){this.visitedKey++;var edges,edgeStack,visitedEdges,edge,priQE;edges=[];edgeStack=[];edgeStack.push(this.startingEdge);visitedEdges=[];while(edgeStack.length>0){edge=edgeStack.pop();if(visitedEdges.indexOf(edge)===-1){priQE=edge.getPrimary();if(includeFrame||!this.isFrameEdge(priQE)){edges.push(priQE)}edgeStack.push(edge.oNext());edgeStack.push(edge.sym().oNext());visitedEdges.push(edge);visitedEdges.push(edge.sym())}}return edges};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.visitTriangles=function(triVisitor,includeFrame){this.visitedKey++;var edgeStack,visitedEdges,edge,triEdges;edgeStack=[];edgeStack.push(this.startingEdge);visitedEdges=[];while(edgeStack.length>0){edge=edgeStack.pop();if(visitedEdges.indexOf(edge)===-1){triEdges=this.fetchTriangleToVisit(edge,edgeStack,includeFrame,visitedEdges);if(triEdges!==null)triVisitor.visit(triEdges)}}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.fetchTriangleToVisit=function(edge,edgeStack,includeFrame,visitedEdges){var curr,edgeCount,isFrame,sym;curr=edge;edgeCount=0;isFrame=false;do{this.triEdges[edgeCount]=curr;if(this.isFrameEdge(curr)){isFrame=true}sym=curr.sym();if(visitedEdges.indexOf(sym)===-1){edgeStack.push(sym)}visitedEdges.push(curr);edgeCount++;curr=curr.lNext()}while(curr!==edge);if(isFrame&&!includeFrame){return null}return this.triEdges};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangleEdges=function(includeFrame){var visitor=new jsts.triangulate.quadedge.TriangleEdgesListVisitor;this.visitTriangles(visitor,includeFrame);return visitor.getTriangleEdges()};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangleVertices=function(includeFrame){var visitor=new TriangleVertexListVisitor;this.visitTriangles(visitor,includeFrame);return visitor.getTriangleVertices()};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangleCoordinates=function(includeFrame){var visitor=new jsts.triangulate.quadedge.TriangleCoordinatesVisitor;this.visitTriangles(visitor,includeFrame);return visitor.getTriangles()};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getEdgesByFactory=function(geomFact){var quadEdges,edges,i,il,qe,coords;quadEdges=this.getPrimaryEdges(false);edges=[];i=0;il=quadEdges.length;for(i;i<il;i++){qe=quadEdges[i];coords=[];coords[0]=qe.orig().getCoordinate();coords[1]=qe.dest().getCoordinate();edges[i]=geomFact.createLineString(coords)}return geomFact.createMultiLineString(edges)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangles=function(geomFact){var triPtsList,tris,triPt,i,il;triPtsList=this.getTriangleCoordinates(false);tris=new Array(triPtsList.length);i=0,il=triPtsList.length;for(i;i<il;i++){triPt=triPtsList[i];tris[i]=geomFact.createPolygon(geomFact.createLinearRing(triPt,null))}return geomFact.createGeometryCollection(tris)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVoronoiDiagram=function(geomFact){var vorCells=this.getVoronoiCellPolygons(geomFact);return geomFact.createGeometryCollection(vorCells)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVoronoiCellPolygons=function(geomFact){this.visitTriangles(new jsts.triangulate.quadedge.TriangleCircumcentreVisitor,true);var cells,edges,i,il,qe;cells=[];edges=this.getVertexUniqueEdges(false);i=0,il=edges.length;for(i;i<il;i++){qe=edges[i];cells.push(this.getVoronoiCellPolygon(qe,geomFact))}return cells};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVoronoiCellPolygon=function(qe,geomFact){var cellPts,startQe,cc,coordList,cellPoly,v;cellPts=[];startQE=qe;do{cc=qe.rot.orig().getCoordinate();cellPts.push(cc);qe=qe.oPrev()}while(qe!==startQE);coordList=new jsts.geom.CoordinateList([],false);coordList.add(cellPts,false);coordList.closeRing();if(coordList.size()<4){coordList.add(coordList.get(coordList.size()-1),true)}cellPoly=geomFact.createPolygon(geomFact.createLinearRing(coordList.toArray()),null);v=startQE.orig();return cellPoly};jsts.triangulate.quadedge.TriangleCircumcentreVisitor=function(){};jsts.triangulate.quadedge.TriangleCircumcentreVisitor.prototype.visit=function(triEdges){var a,b,c,cc,ccVertex,i;a=triEdges[0].orig().getCoordinate();b=triEdges[1].orig().getCoordinate();c=triEdges[2].orig().getCoordinate();cc=jsts.geom.Triangle.circumcentre(a,b,c);ccVertex=new jsts.triangulate.quadedge.Vertex(cc);i=0;for(i;i<3;i++){triEdges[i].rot.setOrig(ccVertex)}};jsts.triangulate.quadedge.TriangleEdgesListVisitor=function(){this.triList=[]};jsts.triangulate.quadedge.TriangleEdgesListVisitor.prototype.visit=function(triEdges){var clone=triEdges.concat();this.triList.push(clone)};jsts.triangulate.quadedge.TriangleEdgesListVisitor.prototype.getTriangleEdges=function(){return this.triList};jsts.triangulate.quadedge.TriangleVertexListVisitor=function(){this.triList=[]};jsts.triangulate.quadedge.TriangleVertexListVisitor.prototype.visit=function(triEdges){var vertices=[];vertices.push(trieEdges[0].orig());vertices.push(trieEdges[1].orig());vertices.push(trieEdges[2].orig());this.triList.push(vertices)};jsts.triangulate.quadedge.TriangleVertexListVisitor.prototype.getTriangleVertices=function(){return this.triList};jsts.triangulate.quadedge.TriangleCoordinatesVisitor=function(){this.coordList=new jsts.geom.CoordinateList([],false);this.triCoords=[]};jsts.triangulate.quadedge.TriangleCoordinatesVisitor.prototype.visit=function(triEdges){this.coordList=new jsts.geom.CoordinateList([],false);var i=0,v,pts;for(i;i<3;i++){v=triEdges[i].orig();this.coordList.add(v.getCoordinate())}if(this.coordList.size()>0){this.coordList.closeRing();pts=this.coordList.toArray();if(pts.length!==4){return}this.triCoords.push(pts)}};jsts.triangulate.quadedge.TriangleCoordinatesVisitor.prototype.getTriangles=function(){return this.triCoords};jsts.operation.relate.EdgeEndBundle=function(){this.edgeEnds=[];var e=arguments[0]instanceof jsts.geomgraph.EdgeEnd?arguments[0]:arguments[1];var edge=e.getEdge();var coord=e.getCoordinate();var dirCoord=e.getDirectedCoordinate();var label=new jsts.geomgraph.Label(e.getLabel());jsts.geomgraph.EdgeEnd.call(this,edge,coord,dirCoord,label);this.insert(e)};jsts.operation.relate.EdgeEndBundle.prototype=new jsts.geomgraph.EdgeEnd;jsts.operation.relate.EdgeEndBundle.prototype.edgeEnds=null;jsts.operation.relate.EdgeEndBundle.prototype.getLabel=function(){return this.label};jsts.operation.relate.EdgeEndBundle.prototype.getEdgeEnds=function(){return this.edgeEnds};jsts.operation.relate.EdgeEndBundle.prototype.insert=function(e){this.edgeEnds.push(e)};jsts.operation.relate.EdgeEndBundle.prototype.computeLabel=function(boundaryNodeRule){var isArea=false;for(var i=0;i<this.edgeEnds.length;i++){var e=this.edgeEnds[i];if(e.getLabel().isArea())isArea=true}if(isArea)this.label=new jsts.geomgraph.Label(jsts.geom.Location.NONE,jsts.geom.Location.NONE,jsts.geom.Location.NONE);else this.label=new jsts.geomgraph.Label(jsts.geom.Location.NONE);for(var i=0;i<2;i++){this.computeLabelOn(i,boundaryNodeRule);if(isArea)this.computeLabelSides(i)}};jsts.operation.relate.EdgeEndBundle.prototype.computeLabelOn=function(geomIndex,boundaryNodeRule){var boundaryCount=0;var foundInterior=false;for(var i=0;i<this.edgeEnds.length;i++){var e=this.edgeEnds[i];var loc=e.getLabel().getLocation(geomIndex);if(loc==jsts.geom.Location.BOUNDARY)boundaryCount++;if(loc==jsts.geom.Location.INTERIOR)foundInterior=true}var loc=jsts.geom.Location.NONE;if(foundInterior)loc=jsts.geom.Location.INTERIOR;if(boundaryCount>0){loc=jsts.geomgraph.GeometryGraph.determineBoundary(boundaryNodeRule,boundaryCount)}this.label.setLocation(geomIndex,loc)};jsts.operation.relate.EdgeEndBundle.prototype.computeLabelSides=function(geomIndex){this.computeLabelSide(geomIndex,jsts.geomgraph.Position.LEFT);this.computeLabelSide(geomIndex,jsts.geomgraph.Position.RIGHT)};jsts.operation.relate.EdgeEndBundle.prototype.computeLabelSide=function(geomIndex,side){for(var i=0;i<this.edgeEnds.length;i++){var e=this.edgeEnds[i];if(e.getLabel().isArea()){var loc=e.getLabel().getLocation(geomIndex,side);if(loc===jsts.geom.Location.INTERIOR){this.label.setLocation(geomIndex,side,jsts.geom.Location.INTERIOR);return}else if(loc===jsts.geom.Location.EXTERIOR)this.label.setLocation(geomIndex,side,jsts.geom.Location.EXTERIOR)}}};jsts.operation.relate.EdgeEndBundle.prototype.updateIM=function(im){jsts.geomgraph.Edge.updateIM(this.label,im)};jsts.index.kdtree.KdTree=function(tolerance){var tol=0;if(tolerance!==undefined){tol=tolerance}this.root=null;this.last=null;this.numberOfNodes=0;this.tolerance=tol};jsts.index.kdtree.KdTree.prototype.insert=function(){if(arguments.length===1){return this.insertCoordinate.apply(this,arguments[0])}else{return this.insertWithData.apply(this,arguments[0],arguments[1])}};jsts.index.kdtree.KdTree.prototype.insertCoordinate=function(p){return this.insertWithData(p,null)};jsts.index.kdtree.KdTree.prototype.insertWithData=function(p,data){if(this.root===null){this.root=new jsts.index.kdtree.KdNode(p,data);return this.root}var currentNode=this.root,leafNode=this.root,isOddLevel=true,isLessThan=true;while(currentNode!==last){if(isOddLevel){isLessThan=p.x<currentNode.getX()}else{isLessThan=p.y<currentNode.getY()}leafNode=currentNode;if(isLessThan){currentNode=currentNode.getLeft()}else{currentNode=currentNode.getRight()}if(currentNode!==null){var isInTolerance=p.distance(currentNode.getCoordinate())<=this.tolerance;if(isInTolerance){currentNode.increment();return currentNode}}isOddLevel=!isOddLevel}this.numberOfNodes=numberOfNodes+1;var node=new jsts.index.kdtree.KdNode(p,data);node.setLeft(this.last);node.setRight(this.last);if(isLessThan){leafNode.setLeft(node)}else{leafNode.setRight(node)}return node};jsts.index.kdtree.KdTree.prototype.queryNode=function(currentNode,bottomNode,queryEnv,odd,result){if(currentNode===bottomNode){return}var min,max,discriminant;if(odd){min=queryEnv.getMinX();max=queryEnv.getMaxX();discriminant=currentNode.getX()}else{min=queryEnv.getMinY();max=queryEnv.getMaxY();discriminant=currentNode.getY()}var searchLeft=min<discriminant;var searchRight=discriminant<=max;if(searchLeft){this.queryNode(currentNode.getLeft(),bottomNode,queryEnv,!odd,result)}if(queryEnv.contains(currentNode.getCoordinate())){result.add(currentNode)}if(searchRight){this.queryNode(currentNode.getRight(),bottomNode,queryEnv,!odd,result)}};jsts.index.kdtree.KdTree.prototype.query=function(){if(arguments.length===1){return this.queryByEnvelope.apply(this,arguments[0])}else{return this.queryWithArray.apply(this,arguments[0],arguments[1])}};jsts.index.kdtree.KdTree.prototype.queryByEnvelope=function(queryEnv){var result=[];this.queryNode(this.root,this.last,queryEnv,true,result);return result};jsts.index.kdtree.KdTree.prototype.queryWithArray=function(queryEnv,result){this.queryNode(this.root,this.last,queryEnv,true,result)};jsts.geom.Triangle=function(p0,p1,p2){this.p0=p0;this.p1=p1;this.p2=p2};jsts.geom.Triangle.isAcute=function(a,b,c){if(!jsts.algorithm.Angle.isAcute(a,b,c)){return false}if(!jsts.algorithm.Angle.isAcute(b,c,a)){return false}if(!jsts.algorithm.Angle.isAcute(c,a,b)){return false}return true};jsts.geom.Triangle.perpendicularBisector=function(a,b){var dx,dy,l1,l2;dx=b.x-a.x;dy=b.y-a.y;l1=new jsts.algorithm.HCoordinate(a.x+dx/2,a.y+dy/2,1);l2=new jsts.algorithm.HCoordinate(a.x-dy+dx/2,a.y+dx+dy/2,1);return new jsts.algorithm.HCoordinate(l1,l2)};jsts.geom.Triangle.circumcentre=function(a,b,c){var cx,cy,ax,ay,bx,by,denom,numx,numy,ccx,ccy;cx=c.x;cy=c.y;ax=a.x-cx;ay=a.y-cy;bx=b.x-cx;by=b.y-cy;denom=2*jsts.geom.Triangle.det(ax,ay,bx,by);numx=jsts.geom.Triangle.det(ay,ax*ax+ay*ay,by,bx*bx+by*by);numy=jsts.geom.Triangle.det(ax,ax*ax+ay*ay,bx,bx*bx+by*by);ccx=cx-numx/denom;ccy=cy+numy/denom;return new jsts.geom.Coordinate(ccx,ccy)};jsts.geom.Triangle.det=function(m00,m01,m10,m11){return m00*m11-m01*m10};jsts.geom.Triangle.inCentre=function(a,b,c){var len0,len1,len2,circum,inCentreX,inCentreY;len0=b.distance(c);len1=a.distance(c);len2=a.distance(b);circum=len0+len1+len2;inCentreX=(len0*a.x+len1*b.x+len2*c.x)/circum;inCentreY=(len0*a.y+len1*b.y+len2*c.y)/circum;return new jsts.geom.Coordinate(inCentreX,inCentreY)};jsts.geom.Triangle.centroid=function(a,b,c){var x,y;x=(a.x+b.x+c.x)/3;y=(a.y+b.y+c.y)/3;return new jsts.geom.Coordinate(x,y)};jsts.geom.Triangle.longestSideLength=function(a,b,c){var lenAB,lenBC,lenCA,maxLen;lenAB=a.distance(b);lenBC=b.distance(c);lenCA=c.distance(a);maxLen=lenAB;if(lenBC>maxLen){maxLen=lenBC}if(lenCA>maxLen){maxLen=lenCA}return maxLen};jsts.geom.Triangle.angleBisector=function(a,b,c){var len0,len2,frac,dx,dy,splitPt;len0=b.distance(a);len2=b.distance(c);frac=len0/(len0+len2);dx=c.x-a.x;dy=c.y-a.y;splitPt=new jsts.geom.Coordinate(a.x+frac*dx,a.y+frac*dy);return splitPt};jsts.geom.Triangle.area=function(a,b,c){return Math.abs(((c.x-a.x)*(b.y-a.y)-(b.x-a.x)*(c.y-a.y))/2)};jsts.geom.Triangle.signedArea=function(a,b,c){return((c.x-a.x)*(b.y-a.y)-(b.x-a.x)*(c.y-a.y))/2};jsts.geom.Triangle.prototype.inCentre=function(){return jsts.geom.Triangle.inCentre(this.p0,this.p1,this.p2)};jsts.noding.OrientedCoordinateArray=function(pts){this.pts=pts;this._orientation=jsts.noding.OrientedCoordinateArray.orientation(pts)};jsts.noding.OrientedCoordinateArray.prototype.pts=null;jsts.noding.OrientedCoordinateArray.prototype._orientation=undefined;jsts.noding.OrientedCoordinateArray.orientation=function(pts){return jsts.geom.CoordinateArrays.increasingDirection(pts)===1};jsts.noding.OrientedCoordinateArray.prototype.compareTo=function(o1){var oca=o1;var comp=jsts.noding.OrientedCoordinateArray.compareOriented(this.pts,this._orientation,oca.pts,oca._orientation);return comp};jsts.noding.OrientedCoordinateArray.compareOriented=function(pts1,orientation1,pts2,orientation2){var dir1=orientation1?1:-1;var dir2=orientation2?1:-1;var limit1=orientation1?pts1.length:-1;var limit2=orientation2?pts2.length:-1;var i1=orientation1?0:pts1.length-1;var i2=orientation2?0:pts2.length-1;var comp=0;while(true){var compPt=pts1[i1].compareTo(pts2[i2]);if(compPt!==0)return compPt;i1+=dir1;i2+=dir2;var done1=i1===limit1;var done2=i2===limit2;if(done1&&!done2)return-1;if(!done1&&done2)return 1;if(done1&&done2)return 0}};jsts.algorithm.CentralEndpointIntersector=function(p00,p01,p10,p11){this.pts=[p00,p01,p10,p11];this.compute()};jsts.algorithm.CentralEndpointIntersector.getIntersection=function(p00,p01,p10,p11){var intor=new jsts.algorithm.CentralEndpointIntersector(p00,p01,p10,p11);return intor.getIntersection()};jsts.algorithm.CentralEndpointIntersector.prototype.pts=null;jsts.algorithm.CentralEndpointIntersector.prototype.intPt=null;jsts.algorithm.CentralEndpointIntersector.prototype.compute=function(){var centroid=jsts.algorithm.CentralEndpointIntersector.average(this.pts);this.intPt=this.findNearestPoint(centroid,this.pts)};jsts.algorithm.CentralEndpointIntersector.prototype.getIntersection=function(){return this.intPt};jsts.algorithm.CentralEndpointIntersector.average=function(pts){var avg=new jsts.geom.Coordinate;var i,n=pts.length;for(i=0;i<n;i++){avg.x+=pts[i].x;avg.y+=pts[i].y}if(n>0){avg.x/=n;avg.y/=n}return avg};jsts.algorithm.CentralEndpointIntersector.prototype.findNearestPoint=function(p,pts){var minDist=Number.MAX_VALUE;var i,result=null,dist;for(i=0;i<pts.length;i++){dist=p.distance(pts[i]);if(dist<minDist){minDist=dist;result=pts[i]}}return result};jsts.operation.buffer.BufferOp=function(g,bufParams){this.argGeom=g;this.bufParams=bufParams?bufParams:new jsts.operation.buffer.BufferParameters};jsts.operation.buffer.BufferOp.MAX_PRECISION_DIGITS=12;jsts.operation.buffer.BufferOp.precisionScaleFactor=function(g,distance,maxPrecisionDigits){var env=g.getEnvelopeInternal();var envSize=Math.max(env.getHeight(),env.getWidth());var expandByDistance=distance>0?distance:0;var bufEnvSize=envSize+2*expandByDistance;var bufEnvLog10=Math.log(bufEnvSize)/Math.log(10)+1;var minUnitLog10=bufEnvLog10-maxPrecisionDigits;var scaleFactor=Math.pow(10,-minUnitLog10);return scaleFactor};jsts.operation.buffer.BufferOp.bufferOp=function(g,distance){if(arguments.length>2){return jsts.operation.buffer.BufferOp.bufferOp2.apply(this,arguments)}var gBuf=new jsts.operation.buffer.BufferOp(g);var geomBuf=gBuf.getResultGeometry(distance);return geomBuf};jsts.operation.buffer.BufferOp.bufferOp2=function(g,distance,params){if(arguments.length>3){return jsts.operation.buffer.BufferOp.bufferOp3.apply(this,arguments)}var bufOp=new jsts.operation.buffer.BufferOp(g,params);var geomBuf=bufOp.getResultGeometry(distance);return geomBuf};jsts.operation.buffer.BufferOp.bufferOp3=function(g,distance,quadrantSegments){if(arguments.length>4){return jsts.operation.buffer.BufferOp.bufferOp4.apply(this,arguments)}var bufOp=new jsts.operation.buffer.BufferOp(g);bufOp.setQuadrantSegments(quadrantSegments);var geomBuf=bufOp.getResultGeometry(distance);return geomBuf};jsts.operation.buffer.BufferOp.bufferOp4=function(g,distance,quadrantSegments,endCapStyle){var bufOp=new jsts.operation.buffer.BufferOp(g);bufOp.setQuadrantSegments(quadrantSegments);bufOp.setEndCapStyle(endCapStyle);var geomBuf=bufOp.getResultGeometry(distance);return geomBuf};jsts.operation.buffer.BufferOp.prototype.argGeom=null;jsts.operation.buffer.BufferOp.prototype.distance=null;jsts.operation.buffer.BufferOp.prototype.bufParams=null;jsts.operation.buffer.BufferOp.prototype.resultGeometry=null;jsts.operation.buffer.BufferOp.prototype.setEndCapStyle=function(endCapStyle){this.bufParams.setEndCapStyle(endCapStyle)};jsts.operation.buffer.BufferOp.prototype.setQuadrantSegments=function(quadrantSegments){this.bufParams.setQuadrantSegments(quadrantSegments)};jsts.operation.buffer.BufferOp.prototype.getResultGeometry=function(dist){this.distance=dist;this.computeGeometry();return this.resultGeometry};jsts.operation.buffer.BufferOp.prototype.computeGeometry=function(){this.bufferOriginalPrecision();if(this.resultGeometry!==null){return}var argPM=this.argGeom.getPrecisionModel();if(argPM.getType()===jsts.geom.PrecisionModel.FIXED){this.bufferFixedPrecision(argPM)}else{this.bufferReducedPrecision()}};jsts.operation.buffer.BufferOp.prototype.bufferReducedPrecision=function(){var precDigits;var saveException=null;for(precDigits=jsts.operation.buffer.BufferOp.MAX_PRECISION_DIGITS;precDigits>=0;precDigits--){try{this.bufferReducedPrecision2(precDigits)}catch(ex){saveException=ex}if(this.resultGeometry!==null){return}}throw saveException};jsts.operation.buffer.BufferOp.prototype.bufferOriginalPrecision=function(){try{var bufBuilder=new jsts.operation.buffer.BufferBuilder(this.bufParams);this.resultGeometry=bufBuilder.buffer(this.argGeom,this.distance)}catch(e){}};jsts.operation.buffer.BufferOp.prototype.bufferReducedPrecision2=function(precisionDigits){var sizeBasedScaleFactor=jsts.operation.buffer.BufferOp.precisionScaleFactor(this.argGeom,this.distance,precisionDigits);
var fixedPM=new jsts.geom.PrecisionModel(sizeBasedScaleFactor);this.bufferFixedPrecision(fixedPM)};jsts.operation.buffer.BufferOp.prototype.bufferFixedPrecision=function(fixedPM){var noder=new jsts.noding.ScaledNoder(new jsts.noding.snapround.MCIndexSnapRounder(new jsts.geom.PrecisionModel(1)),fixedPM.getScale());var bufBuilder=new jsts.operation.buffer.BufferBuilder(this.bufParams);bufBuilder.setWorkingPrecisionModel(fixedPM);bufBuilder.setNoder(noder);this.resultGeometry=bufBuilder.buffer(this.argGeom,this.distance)};jsts.operation.buffer.OffsetSegmentString=function(){this.ptList=[]};jsts.operation.buffer.OffsetSegmentString.prototype.ptList=null;jsts.operation.buffer.OffsetSegmentString.prototype.precisionModel=null;jsts.operation.buffer.OffsetSegmentString.prototype.minimimVertexDistance=0;jsts.operation.buffer.OffsetSegmentString.prototype.setPrecisionModel=function(precisionModel){this.precisionModel=precisionModel};jsts.operation.buffer.OffsetSegmentString.prototype.setMinimumVertexDistance=function(minimimVertexDistance){this.minimimVertexDistance=minimimVertexDistance};jsts.operation.buffer.OffsetSegmentString.prototype.addPt=function(pt){var bufPt=new jsts.geom.Coordinate(pt);this.precisionModel.makePrecise(bufPt);if(this.isRedundant(bufPt))return;this.ptList.push(bufPt)};jsts.operation.buffer.OffsetSegmentString.prototype.addPts=function(pt,isForward){if(isForward){for(var i=0;i<pt.length;i++){this.addPt(pt[i])}}else{for(var i=pt.length-1;i>=0;i--){this.addPt(pt[i])}}};jsts.operation.buffer.OffsetSegmentString.prototype.isRedundant=function(pt){if(this.ptList.length<1)return false;var lastPt=this.ptList[this.ptList.length-1];var ptDist=pt.distance(lastPt);if(ptDist<this.minimimVertexDistance)return true;return false};jsts.operation.buffer.OffsetSegmentString.prototype.closeRing=function(){if(this.ptList.length<1)return;var startPt=new jsts.geom.Coordinate(this.ptList[0]);var lastPt=this.ptList[this.ptList.length-1];var last2Pt=null;if(this.ptList.length>=2)last2Pt=this.ptList[this.ptList.length-2];if(startPt.equals(lastPt))return;this.ptList.push(startPt)};jsts.operation.buffer.OffsetSegmentString.prototype.reverse=function(){};jsts.operation.buffer.OffsetSegmentString.prototype.getCoordinates=function(){return this.ptList};jsts.algorithm.distance.PointPairDistance=function(){this.pt=[new jsts.geom.Coordinate,new jsts.geom.Coordinate]};jsts.algorithm.distance.PointPairDistance.prototype.pt=null;jsts.algorithm.distance.PointPairDistance.prototype.distance=NaN;jsts.algorithm.distance.PointPairDistance.prototype.isNull=true;jsts.algorithm.distance.PointPairDistance.prototype.initialize=function(p0,p1,distance){if(p0===undefined){this.isNull=true;return}this.pt[0].setCoordinate(p0);this.pt[1].setCoordinate(p1);this.distance=distance!==undefined?distance:p0.distance(p1);this.isNull=false};jsts.algorithm.distance.PointPairDistance.prototype.getDistance=function(){return this.distance};jsts.algorithm.distance.PointPairDistance.prototype.getCoordinates=function(){return this.pt};jsts.algorithm.distance.PointPairDistance.prototype.getCoordinate=function(i){return this.pt[i]};jsts.algorithm.distance.PointPairDistance.prototype.setMaximum=function(ptDist){if(arguments.length===2){this.setMaximum2.apply(this,arguments);return}this.setMaximum(ptDist.pt[0],ptDist.pt[1])};jsts.algorithm.distance.PointPairDistance.prototype.setMaximum2=function(p0,p1){if(this.isNull){this.initialize(p0,p1);return}var dist=p0.distance(p1);if(dist>this.distance)this.initialize(p0,p1,dist)};jsts.algorithm.distance.PointPairDistance.prototype.setMinimum=function(ptDist){if(arguments.length===2){this.setMinimum2.apply(this,arguments);return}this.setMinimum(ptDist.pt[0],ptDist.pt[1])};jsts.algorithm.distance.PointPairDistance.prototype.setMinimum2=function(p0,p1){if(this.isNull){this.initialize(p0,p1);return}var dist=p0.distance(p1);if(dist<this.distance)this.initialize(p0,p1,dist)};(function(){var PointPairDistance=jsts.algorithm.distance.PointPairDistance;var DistanceToPoint=jsts.algorithm.distance.DistanceToPoint;var MaxPointDistanceFilter=function(geom){this.maxPtDist=new PointPairDistance;this.minPtDist=new PointPairDistance;this.euclideanDist=new DistanceToPoint;this.geom=geom};MaxPointDistanceFilter.prototype=new jsts.geom.CoordinateFilter;MaxPointDistanceFilter.prototype.maxPtDist=new PointPairDistance;MaxPointDistanceFilter.prototype.minPtDist=new PointPairDistance;MaxPointDistanceFilter.prototype.euclideanDist=new DistanceToPoint;MaxPointDistanceFilter.prototype.geom;MaxPointDistanceFilter.prototype.filter=function(pt){this.minPtDist.initialize();DistanceToPoint.computeDistance(this.geom,pt,this.minPtDist);this.maxPtDist.setMaximum(this.minPtDist)};MaxPointDistanceFilter.prototype.getMaxPointDistance=function(){return this.maxPtDist};var MaxDensifiedByFractionDistanceFilter=function(geom,fraction){this.maxPtDist=new PointPairDistance;this.minPtDist=new PointPairDistance;this.geom=geom;this.numSubSegs=Math.round(1/fraction)};MaxDensifiedByFractionDistanceFilter.prototype=new jsts.geom.CoordinateSequenceFilter;MaxDensifiedByFractionDistanceFilter.prototype.maxPtDist=new PointPairDistance;MaxDensifiedByFractionDistanceFilter.prototype.minPtDist=new PointPairDistance;MaxDensifiedByFractionDistanceFilter.prototype.geom;MaxDensifiedByFractionDistanceFilter.prototype.numSubSegs=0;MaxDensifiedByFractionDistanceFilter.prototype.filter=function(seq,index){if(index==0)return;var p0=seq[index-1];var p1=seq[index];var delx=(p1.x-p0.x)/this.numSubSegs;var dely=(p1.y-p0.y)/this.numSubSegs;for(var i=0;i<this.numSubSegs;i++){var x=p0.x+i*delx;var y=p0.y+i*dely;var pt=new jsts.geom.Coordinate(x,y);this.minPtDist.initialize();DistanceToPoint.computeDistance(this.geom,pt,this.minPtDist);this.maxPtDist.setMaximum(this.minPtDist)}};MaxDensifiedByFractionDistanceFilter.prototype.isGeometryChanged=function(){return false};MaxDensifiedByFractionDistanceFilter.prototype.isDone=function(){return false};MaxDensifiedByFractionDistanceFilter.prototype.getMaxPointDistance=function(){return this.maxPtDist};jsts.algorithm.distance.DiscreteHausdorffDistance=function(g0,g1){this.g0=g0;this.g1=g1;this.ptDist=new jsts.algorithm.distance.PointPairDistance};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.g0=null;jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.g1=null;jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.ptDist=null;jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.densifyFrac=0;jsts.algorithm.distance.DiscreteHausdorffDistance.distance=function(g0,g1,densifyFrac){var dist=new jsts.algorithm.distance.DiscreteHausdorffDistance(g0,g1);if(densifyFrac!==undefined)dist.setDensifyFraction(densifyFrac);return dist.distance()};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.setDensifyFraction=function(densifyFrac){if(densifyFrac>1||densifyFrac<=0)throw new jsts.error.IllegalArgumentError("Fraction is not in range (0.0 - 1.0]");this.densifyFrac=densifyFrac};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.distance=function(){this.compute(this.g0,this.g1);return ptDist.getDistance()};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.orientedDistance=function(){this.computeOrientedDistance(this.g0,this.g1,this.ptDist);return this.ptDist.getDistance()};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.getCoordinates=function(){return ptDist.getCoordinates()};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.compute=function(g0,g1){this.computeOrientedDistance(g0,g1,this.ptDist);this.computeOrientedDistance(g1,g0,this.ptDist)};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.computeOrientedDistance=function(discreteGeom,geom,ptDist){var distFilter=new MaxPointDistanceFilter(geom);discreteGeom.apply(distFilter);ptDist.setMaximum(distFilter.getMaxPointDistance());if(this.densifyFrac>0){var fracFilter=new MaxDensifiedByFractionDistanceFilter(geom,this.densifyFrac);discreteGeom.apply(fracFilter);ptDist.setMaximum(fracFilter.getMaxPointDistance())}}})();(function(){var ArrayList=javascript.util.ArrayList;var TreeSet=javascript.util.TreeSet;var CoordinateFilter=jsts.geom.CoordinateFilter;jsts.util.UniqueCoordinateArrayFilter=function(){this.treeSet=new TreeSet;this.list=new ArrayList};jsts.util.UniqueCoordinateArrayFilter.prototype=new CoordinateFilter;jsts.util.UniqueCoordinateArrayFilter.prototype.treeSet=null;jsts.util.UniqueCoordinateArrayFilter.prototype.list=null;jsts.util.UniqueCoordinateArrayFilter.prototype.getCoordinates=function(){return this.list.toArray()};jsts.util.UniqueCoordinateArrayFilter.prototype.filter=function(coord){if(!this.treeSet.contains(coord)){this.list.add(coord);this.treeSet.add(coord)}}})();(function(){var CGAlgorithms=jsts.algorithm.CGAlgorithms;var UniqueCoordinateArrayFilter=jsts.util.UniqueCoordinateArrayFilter;var Assert=jsts.util.Assert;var Stack=javascript.util.Stack;var ArrayList=javascript.util.ArrayList;var Arrays=javascript.util.Arrays;var RadialComparator=function(origin){this.origin=origin};RadialComparator.prototype.origin=null;RadialComparator.prototype.compare=function(o1,o2){var p1=o1;var p2=o2;return RadialComparator.polarCompare(this.origin,p1,p2)};RadialComparator.polarCompare=function(o,p,q){var dxp=p.x-o.x;var dyp=p.y-o.y;var dxq=q.x-o.x;var dyq=q.y-o.y;var orient=CGAlgorithms.computeOrientation(o,p,q);if(orient==CGAlgorithms.COUNTERCLOCKWISE)return 1;if(orient==CGAlgorithms.CLOCKWISE)return-1;var op=dxp*dxp+dyp*dyp;var oq=dxq*dxq+dyq*dyq;if(op<oq){return-1}if(op>oq){return 1}return 0};jsts.algorithm.ConvexHull=function(){if(arguments.length===1){var geometry=arguments[0];this.inputPts=jsts.algorithm.ConvexHull.extractCoordinates(geometry);this.geomFactory=geometry.getFactory()}else{this.pts=arguments[0];this.geomFactory=arguments[1]}};jsts.algorithm.ConvexHull.prototype.geomFactory=null;jsts.algorithm.ConvexHull.prototype.inputPts=null;jsts.algorithm.ConvexHull.extractCoordinates=function(geom){var filter=new UniqueCoordinateArrayFilter;geom.apply(filter);return filter.getCoordinates()};jsts.algorithm.ConvexHull.prototype.getConvexHull=function(){if(this.inputPts.length==0){return this.geomFactory.createGeometryCollection(null)}if(this.inputPts.length==1){return this.geomFactory.createPoint(this.inputPts[0])}if(this.inputPts.length==2){return this.geomFactory.createLineString(this.inputPts)}var reducedPts=this.inputPts;if(this.inputPts.length>50){reducedPts=this.reduce(this.inputPts)}var sortedPts=this.preSort(reducedPts);var cHS=this.grahamScan(sortedPts);var cH=cHS.toArray();return this.lineOrPolygon(cH)};jsts.algorithm.ConvexHull.prototype.reduce=function(inputPts){var polyPts=this.computeOctRing(inputPts);if(polyPts==null)return this.inputPts;var reducedSet=new javascript.util.TreeSet;for(var i=0;i<polyPts.length;i++){reducedSet.add(polyPts[i])}for(var i=0;i<inputPts.length;i++){if(!CGAlgorithms.isPointInRing(inputPts[i],polyPts)){reducedSet.add(inputPts[i])}}var reducedPts=reducedSet.toArray();if(reducedPts.length<3)return this.padArray3(reducedPts);return reducedPts};jsts.algorithm.ConvexHull.prototype.padArray3=function(pts){var pad=[];for(var i=0;i<pad.length;i++){if(i<pts.length){pad[i]=pts[i]}else pad[i]=pts[0]}return pad};jsts.algorithm.ConvexHull.prototype.preSort=function(pts){var t;for(var i=1;i<pts.length;i++){if(pts[i].y<pts[0].y||pts[i].y==pts[0].y&&pts[i].x<pts[0].x){t=pts[0];pts[0]=pts[i];pts[i]=t}}Arrays.sort(pts,1,pts.length,new RadialComparator(pts[0]));return pts};jsts.algorithm.ConvexHull.prototype.grahamScan=function(c){var p;var ps=new Stack;p=ps.push(c[0]);p=ps.push(c[1]);p=ps.push(c[2]);for(var i=3;i<c.length;i++){p=ps.pop();while(!ps.empty()&&CGAlgorithms.computeOrientation(ps.peek(),p,c[i])>0){p=ps.pop()}p=ps.push(p);p=ps.push(c[i])}p=ps.push(c[0]);return ps};jsts.algorithm.ConvexHull.prototype.isBetween=function(c1,c2,c3){if(CGAlgorithms.computeOrientation(c1,c2,c3)!==0){return false}if(c1.x!=c3.x){if(c1.x<=c2.x&&c2.x<=c3.x){return true}if(c3.x<=c2.x&&c2.x<=c1.x){return true}}if(c1.y!=c3.y){if(c1.y<=c2.y&&c2.y<=c3.y){return true}if(c3.y<=c2.y&&c2.y<=c1.y){return true}}return false};jsts.algorithm.ConvexHull.prototype.computeOctRing=function(inputPts){var octPts=this.computeOctPts(inputPts);var coordList=new jsts.geom.CoordinateList;coordList.add(octPts,false);if(coordList.size()<3){return null}coordList.closeRing();return coordList.toCoordinateArray()};jsts.algorithm.ConvexHull.prototype.computeOctPts=function(inputPts){var pts=[];for(var j=0;j<8;j++){pts[j]=inputPts[0]}for(var i=1;i<inputPts.length;i++){if(inputPts[i].x<pts[0].x){pts[0]=inputPts[i]}if(inputPts[i].x-inputPts[i].y<pts[1].x-pts[1].y){pts[1]=inputPts[i]}if(inputPts[i].y>pts[2].y){pts[2]=inputPts[i]}if(inputPts[i].x+inputPts[i].y>pts[3].x+pts[3].y){pts[3]=inputPts[i]}if(inputPts[i].x>pts[4].x){pts[4]=inputPts[i]}if(inputPts[i].x-inputPts[i].y>pts[5].x-pts[5].y){pts[5]=inputPts[i]}if(inputPts[i].y<pts[6].y){pts[6]=inputPts[i]}if(inputPts[i].x+inputPts[i].y<pts[7].x+pts[7].y){pts[7]=inputPts[i]}}return pts};jsts.algorithm.ConvexHull.prototype.lineOrPolygon=function(coordinates){coordinates=this.cleanRing(coordinates);if(coordinates.length==3){return this.geomFactory.createLineString([coordinates[0],coordinates[1]])}var linearRing=this.geomFactory.createLinearRing(coordinates);return this.geomFactory.createPolygon(linearRing,null)};jsts.algorithm.ConvexHull.prototype.cleanRing=function(original){Assert.equals(original[0],original[original.length-1]);var cleanedRing=new ArrayList;var previousDistinctCoordinate=null;for(var i=0;i<=original.length-2;i++){var currentCoordinate=original[i];var nextCoordinate=original[i+1];if(currentCoordinate.equals(nextCoordinate)){continue}if(previousDistinctCoordinate!=null&&this.isBetween(previousDistinctCoordinate,currentCoordinate,nextCoordinate)){continue}cleanedRing.add(currentCoordinate);previousDistinctCoordinate=currentCoordinate}cleanedRing.add(original[original.length-1]);var cleanedRingCoordinates=[];return cleanedRing.toArray(cleanedRingCoordinates)}})();(function(){var ArrayList=javascript.util.ArrayList;jsts.geomgraph.index.SegmentIntersector=function(li,includeProper,recordIsolated){this.li=li;this.includeProper=includeProper;this.recordIsolated=recordIsolated};jsts.geomgraph.index.SegmentIntersector.isAdjacentSegments=function(i1,i2){return Math.abs(i1-i2)===1};jsts.geomgraph.index.SegmentIntersector.prototype._hasIntersection=false;jsts.geomgraph.index.SegmentIntersector.prototype.hasProper=false;jsts.geomgraph.index.SegmentIntersector.prototype.hasProperInterior=false;jsts.geomgraph.index.SegmentIntersector.prototype.properIntersectionPoint=null;jsts.geomgraph.index.SegmentIntersector.prototype.li=null;jsts.geomgraph.index.SegmentIntersector.prototype.includeProper=null;jsts.geomgraph.index.SegmentIntersector.prototype.recordIsolated=null;jsts.geomgraph.index.SegmentIntersector.prototype.isSelfIntersection=null;jsts.geomgraph.index.SegmentIntersector.prototype.numIntersections=0;jsts.geomgraph.index.SegmentIntersector.prototype.numTests=0;jsts.geomgraph.index.SegmentIntersector.prototype.bdyNodes=null;jsts.geomgraph.index.SegmentIntersector.prototype.setBoundaryNodes=function(bdyNodes0,bdyNodes1){this.bdyNodes=[];this.bdyNodes[0]=bdyNodes0;this.bdyNodes[1]=bdyNodes1};jsts.geomgraph.index.SegmentIntersector.prototype.getProperIntersectionPoint=function(){return this.properIntersectionPoint};jsts.geomgraph.index.SegmentIntersector.prototype.hasIntersection=function(){return this._hasIntersection};jsts.geomgraph.index.SegmentIntersector.prototype.hasProperIntersection=function(){return this.hasProper};jsts.geomgraph.index.SegmentIntersector.prototype.hasProperInteriorIntersection=function(){return this.hasProperInterior};jsts.geomgraph.index.SegmentIntersector.prototype.isTrivialIntersection=function(e0,segIndex0,e1,segIndex1){if(e0===e1){if(this.li.getIntersectionNum()===1){if(jsts.geomgraph.index.SegmentIntersector.isAdjacentSegments(segIndex0,segIndex1))return true;if(e0.isClosed()){var maxSegIndex=e0.getNumPoints()-1;if(segIndex0===0&&segIndex1===maxSegIndex||segIndex1===0&&segIndex0===maxSegIndex){return true}}}}return false};jsts.geomgraph.index.SegmentIntersector.prototype.addIntersections=function(e0,segIndex0,e1,segIndex1){if(e0===e1&&segIndex0===segIndex1)return;this.numTests++;var p00=e0.getCoordinates()[segIndex0];var p01=e0.getCoordinates()[segIndex0+1];var p10=e1.getCoordinates()[segIndex1];var p11=e1.getCoordinates()[segIndex1+1];this.li.computeIntersection(p00,p01,p10,p11);if(this.li.hasIntersection()){if(this.recordIsolated){e0.setIsolated(false);e1.setIsolated(false)}this.numIntersections++;if(!this.isTrivialIntersection(e0,segIndex0,e1,segIndex1)){this._hasIntersection=true;if(this.includeProper||!this.li.isProper()){e0.addIntersections(this.li,segIndex0,0);e1.addIntersections(this.li,segIndex1,1)}if(this.li.isProper()){this.properIntersectionPoint=this.li.getIntersection(0).clone();this.hasProper=true;if(!this.isBoundaryPoint(this.li,this.bdyNodes))this.hasProperInterior=true}}}};jsts.geomgraph.index.SegmentIntersector.prototype.isBoundaryPoint=function(li,bdyNodes){if(bdyNodes===null)return false;if(bdyNodes instanceof Array){if(this.isBoundaryPoint(li,bdyNodes[0]))return true;if(this.isBoundaryPoint(li,bdyNodes[1]))return true;return false}else{for(var i=bdyNodes.iterator();i.hasNext();){var node=i.next();var pt=node.getCoordinate();if(li.isIntersection(pt))return true}return false}}})();(function(){var Location=jsts.geom.Location;var Position=jsts.geomgraph.Position;var Assert=jsts.util.Assert;jsts.geomgraph.GeometryGraph=function(argIndex,parentGeom,boundaryNodeRule){jsts.geomgraph.PlanarGraph.call(this);this.lineEdgeMap=new javascript.util.HashMap;this.ptLocator=new jsts.algorithm.PointLocator;this.argIndex=argIndex;this.parentGeom=parentGeom;this.boundaryNodeRule=boundaryNodeRule||jsts.algorithm.BoundaryNodeRule.OGC_SFS_BOUNDARY_RULE;if(parentGeom!==null){this.add(parentGeom)}};jsts.geomgraph.GeometryGraph.prototype=new jsts.geomgraph.PlanarGraph;jsts.geomgraph.GeometryGraph.constructor=jsts.geomgraph.GeometryGraph;jsts.geomgraph.GeometryGraph.prototype.createEdgeSetIntersector=function(){return new jsts.geomgraph.index.SimpleMCSweepLineIntersector};jsts.geomgraph.GeometryGraph.determineBoundary=function(boundaryNodeRule,boundaryCount){return boundaryNodeRule.isInBoundary(boundaryCount)?Location.BOUNDARY:Location.INTERIOR};jsts.geomgraph.GeometryGraph.prototype.parentGeom=null;jsts.geomgraph.GeometryGraph.prototype.lineEdgeMap=null;jsts.geomgraph.GeometryGraph.prototype.boundaryNodeRule=null;jsts.geomgraph.GeometryGraph.prototype.useBoundaryDeterminationRule=true;jsts.geomgraph.GeometryGraph.prototype.argIndex=null;jsts.geomgraph.GeometryGraph.prototype.boundaryNodes=null;jsts.geomgraph.GeometryGraph.prototype.hasTooFewPoints=false;jsts.geomgraph.GeometryGraph.prototype.invalidPoint=null;jsts.geomgraph.GeometryGraph.prototype.areaPtLocator=null;jsts.geomgraph.GeometryGraph.prototype.ptLocator=null;jsts.geomgraph.GeometryGraph.prototype.getGeometry=function(){return this.parentGeom};jsts.geomgraph.GeometryGraph.prototype.getBoundaryNodes=function(){if(this.boundaryNodes===null)this.boundaryNodes=this.nodes.getBoundaryNodes(this.argIndex);return this.boundaryNodes};jsts.geomgraph.GeometryGraph.prototype.getBoundaryNodeRule=function(){return this.boundaryNodeRule};jsts.geomgraph.GeometryGraph.prototype.findEdge=function(line){return this.lineEdgeMap.get(line)};jsts.geomgraph.GeometryGraph.prototype.computeSplitEdges=function(edgelist){for(var i=this.edges.iterator();i.hasNext();){var e=i.next();e.eiList.addSplitEdges(edgelist)}};jsts.geomgraph.GeometryGraph.prototype.add=function(g){if(g.isEmpty()){return}if(g instanceof jsts.geom.MultiPolygon)this.useBoundaryDeterminationRule=false;if(g instanceof jsts.geom.Polygon)this.addPolygon(g);else if(g instanceof jsts.geom.LineString)this.addLineString(g);else if(g instanceof jsts.geom.Point)this.addPoint(g);else if(g instanceof jsts.geom.MultiPoint)this.addCollection(g);else if(g instanceof jsts.geom.MultiLineString)this.addCollection(g);else if(g instanceof jsts.geom.MultiPolygon)this.addCollection(g);else if(g instanceof jsts.geom.GeometryCollection)this.addCollection(g);else throw new jsts.error.IllegalArgumentError("Geometry type not supported.")};jsts.geomgraph.GeometryGraph.prototype.addCollection=function(gc){for(var i=0;i<gc.getNumGeometries();i++){var g=gc.getGeometryN(i);this.add(g)}};jsts.geomgraph.GeometryGraph.prototype.addEdge=function(e){this.insertEdge(e);var coord=e.getCoordinates();this.insertPoint(this.argIndex,coord[0],Location.BOUNDARY);this.insertPoint(this.argIndex,coord[coord.length-1],Location.BOUNDARY)};jsts.geomgraph.GeometryGraph.prototype.addPoint=function(p){var coord=p.getCoordinate();this.insertPoint(this.argIndex,coord,Location.INTERIOR)};jsts.geomgraph.GeometryGraph.prototype.addLineString=function(line){var coord=jsts.geom.CoordinateArrays.removeRepeatedPoints(line.getCoordinates());if(coord.length<2){this.hasTooFewPoints=true;this.invalidPoint=coords[0];return}var e=new jsts.geomgraph.Edge(coord,new jsts.geomgraph.Label(this.argIndex,Location.INTERIOR));this.lineEdgeMap.put(line,e);this.insertEdge(e);Assert.isTrue(coord.length>=2,"found LineString with single point");this.insertBoundaryPoint(this.argIndex,coord[0]);this.insertBoundaryPoint(this.argIndex,coord[coord.length-1])};jsts.geomgraph.GeometryGraph.prototype.addPolygonRing=function(lr,cwLeft,cwRight){if(lr.isEmpty())return;var coord=jsts.geom.CoordinateArrays.removeRepeatedPoints(lr.getCoordinates());if(coord.length<4){this.hasTooFewPoints=true;this.invalidPoint=coord[0];return}var left=cwLeft;var right=cwRight;if(jsts.algorithm.CGAlgorithms.isCCW(coord)){left=cwRight;right=cwLeft}var e=new jsts.geomgraph.Edge(coord,new jsts.geomgraph.Label(this.argIndex,Location.BOUNDARY,left,right));this.lineEdgeMap.put(lr,e);this.insertEdge(e);this.insertPoint(this.argIndex,coord[0],Location.BOUNDARY)};jsts.geomgraph.GeometryGraph.prototype.addPolygon=function(p){this.addPolygonRing(p.getExteriorRing(),Location.EXTERIOR,Location.INTERIOR);for(var i=0;i<p.getNumInteriorRing();i++){var hole=p.getInteriorRingN(i);this.addPolygonRing(hole,Location.INTERIOR,Location.EXTERIOR)}};jsts.geomgraph.GeometryGraph.prototype.computeEdgeIntersections=function(g,li,includeProper){var si=new jsts.geomgraph.index.SegmentIntersector(li,includeProper,true);si.setBoundaryNodes(this.getBoundaryNodes(),g.getBoundaryNodes());var esi=this.createEdgeSetIntersector();esi.computeIntersections(this.edges,g.edges,si);return si};jsts.geomgraph.GeometryGraph.prototype.computeSelfNodes=function(li,computeRingSelfNodes){var si=new jsts.geomgraph.index.SegmentIntersector(li,true,false);var esi=this.createEdgeSetIntersector();if(!computeRingSelfNodes&&(this.parentGeom instanceof jsts.geom.LinearRing||this.parentGeom instanceof jsts.geom.Polygon||this.parentGeom instanceof jsts.geom.MultiPolygon)){esi.computeIntersections(this.edges,si,false)}else{esi.computeIntersections(this.edges,si,true)}this.addSelfIntersectionNodes(this.argIndex);return si};jsts.geomgraph.GeometryGraph.prototype.insertPoint=function(argIndex,coord,onLocation){var n=this.nodes.addNode(coord);var lbl=n.getLabel();if(lbl==null){n.label=new jsts.geomgraph.Label(argIndex,onLocation)}else lbl.setLocation(argIndex,onLocation)};jsts.geomgraph.GeometryGraph.prototype.insertBoundaryPoint=function(argIndex,coord){var n=this.nodes.addNode(coord);var lbl=n.getLabel();var boundaryCount=1;var loc=Location.NONE;if(lbl!==null)loc=lbl.getLocation(argIndex,Position.ON);if(loc===Location.BOUNDARY)boundaryCount++;var newLoc=jsts.geomgraph.GeometryGraph.determineBoundary(this.boundaryNodeRule,boundaryCount);lbl.setLocation(argIndex,newLoc)};jsts.geomgraph.GeometryGraph.prototype.addSelfIntersectionNodes=function(argIndex){for(var i=this.edges.iterator();i.hasNext();){var e=i.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.eiList.iterator();eiIt.hasNext();){var ei=eiIt.next();this.addSelfIntersectionNode(argIndex,ei.coord,eLoc)}}};jsts.geomgraph.GeometryGraph.prototype.addSelfIntersectionNode=function(argIndex,coord,loc){if(this.isBoundaryNode(argIndex,coord))return;if(loc===Location.BOUNDARY&&this.useBoundaryDeterminationRule)this.insertBoundaryPoint(argIndex,coord);else this.insertPoint(argIndex,coord,loc)};jsts.geomgraph.GeometryGraph.prototype.getInvalidPoint=function(){return this.invalidPoint}})()},{}],65:[function(_dereq_,module,exports){javascript={util:{}};if(typeof module!=="undefined"){module.exports=javascript}(function(){function EmptyStackException(message){this.message=message||""}EmptyStackException.prototype=new Error;EmptyStackException.prototype.name="EmptyStackException";javascript.util.EmptyStackException=EmptyStackException})();(function(){function IndexOutOfBoundsException(message){this.message=message||""}IndexOutOfBoundsException.prototype=new Error;IndexOutOfBoundsException.prototype.name="IndexOutOfBoundsException";javascript.util.IndexOutOfBoundsException=IndexOutOfBoundsException})();(function(){function NoSuchElementException(message){this.message=message||""}NoSuchElementException.prototype=new Error;NoSuchElementException.prototype.name="NoSuchElementException";javascript.util.NoSuchElementException=NoSuchElementException})();(function(){function OperationNotSupported(message){this.message=message||""}OperationNotSupported.prototype=new Error;OperationNotSupported.prototype.name="OperationNotSupported";javascript.util.OperationNotSupported=OperationNotSupported})();(function(){function Map(){}Map.prototype.get=function(key){};Map.prototype.put=function(key,value){};Map.prototype.size=function(){};Map.prototype.values=function(){};javascript.util.Map=Map})();(function(){var Map=javascript.util.Map;function SortedMap(){}SortedMap.prototype=new Map;javascript.util.SortedMap=SortedMap})();(function(){function Arrays(){}Arrays.sort=function(){var a=arguments[0],i,t,comparator,compare;if(arguments.length===1){a.sort();return}else if(arguments.length===2){comparator=arguments[1];compare=function(a,b){return comparator["compare"](a,b)};a.sort(compare)}else if(arguments.length===3){t=a.slice(arguments[1],arguments[2]);t.sort();var r=a.slice(0,arguments[1]).concat(t,a.slice(arguments[2],a.length));a.splice(0,a.length);for(i=0;i<r.length;i++){a.push(r[i])}return}else if(arguments.length===4){t=a.slice(arguments[1],arguments[2]);comparator=arguments[3];compare=function(a,b){return comparator["compare"](a,b)};t.sort(compare);r=a.slice(0,arguments[1]).concat(t,a.slice(arguments[2],a.length));a.splice(0,a.length);for(i=0;i<r.length;i++){a.push(r[i])}return}};Arrays.asList=function(array){var arrayList=new javascript.util.ArrayList;for(var i=0,len=array.length;i<len;i++){arrayList.add(array[i])}return arrayList};javascript.util.Arrays=Arrays})();(function(){function Iterator(){}Iterator.prototype.hasNext=function(){};Iterator.prototype.next=function(){};Iterator.prototype.remove=function(){};javascript.util.Iterator=Iterator})();(function(){var Iterator=javascript.util.Iterator;function Collection(){}Collection.prototype.add=function(o){};Collection.prototype.addAll=function(c){};Collection.prototype.isEmpty=function(){};Collection.prototype.iterator=function(){};Collection.prototype.size=function(){};Collection.prototype.toArray=function(){};Collection.prototype.remove=function(o){};javascript.util.Collection=Collection})();(function(){var 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oldElement};ArrayList.prototype.iterator=function(){return new ArrayList.Iterator(this)};ArrayList.prototype.get=function(index){if(index<0||index>=this.size()){throw new IndexOutOfBoundsException}return this.array[index]};ArrayList.prototype.isEmpty=function(){return this.array.length===0};ArrayList.prototype.size=function(){return this.array.length};ArrayList.prototype.toArray=function(){var array=[];for(var i=0,len=this.array.length;i<len;i++){array.push(this.array[i])}return array};ArrayList.prototype.remove=function(o){var found=false;for(var i=0,len=this.array.length;i<len;i++){if(this.array[i]===o){this.array.splice(i,1);found=true;break}}return found};ArrayList.Iterator=function(arrayList){this.arrayList=arrayList};ArrayList.Iterator.prototype.arrayList=null;ArrayList.Iterator.prototype.position=0;ArrayList.Iterator.prototype.next=function(){if(this.position===this.arrayList.size()){throw new NoSuchElementException}return this.arrayList.get(this.position++)};ArrayList.Iterator.prototype.hasNext=function(){if(this.position<this.arrayList.size()){return true}return false};ArrayList.Iterator.prototype.remove=function(){throw new OperationNotSupported};javascript.util.ArrayList=ArrayList})();(function(){var Map=javascript.util.Map;var ArrayList=javascript.util.ArrayList;function HashMap(){this.object={}}HashMap.prototype=new Map;HashMap.prototype.object=null;HashMap.prototype.get=function(key){return this.object[key]||null};HashMap.prototype.put=function(key,value){this.object[key]=value;return value};HashMap.prototype.values=function(){var arrayList=new javascript.util.ArrayList;for(var key in this.object){if(this.object.hasOwnProperty(key)){arrayList.add(this.object[key])}}return arrayList};HashMap.prototype.size=function(){return this.values().size()};javascript.util.HashMap=HashMap})();(function(){var Collection=javascript.util.Collection;function Set(){}Set.prototype=new Collection;Set.prototype.contains=function(o){};javascript.util.Set=Set})();(function(){var Set=javascript.util.Set;function SortedSet(){}SortedSet.prototype=new Set;javascript.util.SortedSet=SortedSet})();(function(){var Collection=javascript.util.Collection;var SortedSet=javascript.util.SortedSet;var OperationNotSupported=javascript.util.OperationNotSupported;var NoSuchElementException=javascript.util.NoSuchElementException;function TreeSet(){this.array=[];if(arguments[0]instanceof Collection){this.addAll(arguments[0])}}TreeSet.prototype=new SortedSet;TreeSet.prototype.array=null;TreeSet.prototype.contains=function(o){for(var i=0,len=this.array.length;i<len;i++){var e=this.array[i];if(e["compareTo"](o)===0){return true}}return false};TreeSet.prototype.add=function(o){if(this.contains(o)){return false}for(var i=0,len=this.array.length;i<len;i++){var e=this.array[i];if(e["compareTo"](o)===1){this.array.splice(i,0,o);return true}}this.array.push(o);return true};TreeSet.prototype.addAll=function(c){for(var i=c.iterator();i.hasNext();){this.add(i.next())}return true};TreeSet.prototype.remove=function(o){throw new OperationNotSupported};TreeSet.prototype.size=function(){return this.array.length};TreeSet.prototype.isEmpty=function(){return this.array.length===0};TreeSet.prototype.toArray=function(){var array=[];for(var i=0,len=this.array.length;i<len;i++){array.push(this.array[i])}return array};TreeSet.prototype.iterator=function(){return new TreeSet.Iterator(this)};TreeSet.Iterator=function(treeSet){this.treeSet=treeSet};TreeSet.Iterator.prototype.treeSet=null;TreeSet.Iterator.prototype.position=0;
TreeSet.Iterator.prototype.next=function(){if(this.position===this.treeSet.size()){throw new NoSuchElementException}return this.treeSet.array[this.position++]};TreeSet.Iterator.prototype.hasNext=function(){if(this.position<this.treeSet.size()){return true}return false};TreeSet.Iterator.prototype.remove=function(){throw new javascript.util.OperationNotSupported};javascript.util.TreeSet=TreeSet})();(function(){var List=javascript.util.List;var EmptyStackException=javascript.util.EmptyStackException;function Stack(){this.array=[]}Stack.prototype=new List;Stack.prototype.array=null;Stack.prototype.push=function(e){this.array.push(e);return e};Stack.prototype.pop=function(e){if(this.array.length===0){throw new EmptyStackException}return this.array.pop()};Stack.prototype.peek=function(){if(this.array.length===0){throw new EmptyStackException}return this.array[this.array.length-1]};Stack.prototype.empty=function(e){if(this.array.length===0){return true}else{return false}};Stack.prototype.isEmpty=function(){return this.empty()};Stack.prototype.search=function(o){return this.array.indexOf(o)};Stack.prototype.size=function(){return this.array.length};Stack.prototype.toArray=function(){var array=[];for(var i=0,len=this.array.length;i<len;i++){array.push(this.array[i])}return array};javascript.util.Stack=Stack})();(function(){var Map=javascript.util.Map;var SortedMap=javascript.util.SortedMap;var ArrayList=javascript.util.ArrayList;function TreeMap(){this.array=[]}TreeMap.prototype=new Map;TreeMap.prototype.array=null;TreeMap.prototype.get=function(key){for(var i=0,len=this.array.length;i<len;i++){var e=this.array[i];if(e.key["compareTo"](key)===0){return e.value}}return null};TreeMap.prototype.put=function(key,value){var e=this.get(key);if(e){var oldValue=e.value;e.value=value;return oldValue}var newElement={key:key,value:value};for(var i=0,len=this.array.length;i<len;i++){e=this.array[i];if(e.key["compareTo"](key)===1){this.array.splice(i,0,newElement);return null}}this.array.push({key:key,value:value});return null};TreeMap.prototype.values=function(){var arrayList=new javascript.util.ArrayList;for(var i=0,len=this.array.length;i<len;i++){arrayList.add(this.array[i].value)}return arrayList};TreeMap.prototype.size=function(){return this.values().size()};javascript.util.TreeMap=TreeMap})();(function(){var Collection=javascript.util.Collection;var Set=javascript.util.Set;var OperationNotSupported=javascript.util.OperationNotSupported;var NoSuchElementException=javascript.util.NoSuchElementException;function HashSet(){this.array=[];if(arguments[0]instanceof Collection){this.addAll(arguments[0])}}HashSet.prototype=new Set;HashSet.prototype.array=null;HashSet.prototype.contains=function(o){for(var i=0,len=this.array.length;i<len;i++){var e=this.array[i];if(e===o){return true}}return 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mode(x){if(x.length===0)return null;else if(x.length===1)return x[0];var sorted=x.slice().sort(function(a,b){return a-b});var last=sorted[0],value,max_seen=0,seen_this=1;for(var i=1;i<sorted.length+1;i++){if(sorted[i]!==last){if(seen_this>max_seen){max_seen=seen_this;seen_this=1;value=last}last=sorted[i]}else{seen_this++}}return value}function t_test(sample,x){var sample_mean=mean(sample);
var sd=standard_deviation(sample);var rootN=Math.sqrt(sample.length);return(sample_mean-x)/(sd/rootN)}function t_test_two_sample(sample_x,sample_y,difference){var n=sample_x.length,m=sample_y.length;if(!n||!m)return null;if(!difference)difference=0;var meanX=mean(sample_x),meanY=mean(sample_y);var weightedVariance=((n-1)*sample_variance(sample_x)+(m-1)*sample_variance(sample_y))/(n+m-2);return(meanX-meanY-difference)/Math.sqrt(weightedVariance*(1/n+1/m))}function quantile(sample,p){if(sample.length===0)return null;var sorted=sample.slice().sort(function(a,b){return a-b});if(p.length){var results=[];for(var i=0;i<p.length;i++){results[i]=quantile_sorted(sorted,p[i])}return results}else{return quantile_sorted(sorted,p)}}function quantile_sorted(sample,p){var idx=sample.length*p;if(p<0||p>1){return null}else if(p===1){return sample[sample.length-1]}else if(p===0){return sample[0]}else if(idx%1!==0){return sample[Math.ceil(idx)-1]}else if(sample.length%2===0){return(sample[idx-1]+sample[idx])/2}else{return sample[idx]}}function iqr(sample){if(sample.length===0)return null;return quantile(sample,.75)-quantile(sample,.25)}function mad(x){if(!x||x.length===0)return null;var median_value=median(x),median_absolute_deviations=[];for(var i=0;i<x.length;i++){median_absolute_deviations.push(Math.abs(x[i]-median_value))}return median(median_absolute_deviations)}function jenksMatrices(data,n_classes){var lower_class_limits=[],variance_combinations=[],i,j,variance=0;for(i=0;i<data.length+1;i++){var tmp1=[],tmp2=[];for(j=0;j<n_classes+1;j++){tmp1.push(0);tmp2.push(0)}lower_class_limits.push(tmp1);variance_combinations.push(tmp2)}for(i=1;i<n_classes+1;i++){lower_class_limits[1][i]=1;variance_combinations[1][i]=0;for(j=2;j<data.length+1;j++){variance_combinations[j][i]=Infinity}}for(var l=2;l<data.length+1;l++){var sum=0,sum_squares=0,w=0,i4=0;for(var m=1;m<l+1;m++){var lower_class_limit=l-m+1,val=data[lower_class_limit-1];w++;sum+=val;sum_squares+=val*val;variance=sum_squares-sum*sum/w;i4=lower_class_limit-1;if(i4!==0){for(j=2;j<n_classes+1;j++){if(variance_combinations[l][j]>=variance+variance_combinations[i4][j-1]){lower_class_limits[l][j]=lower_class_limit;variance_combinations[l][j]=variance+variance_combinations[i4][j-1]}}}}lower_class_limits[l][1]=1;variance_combinations[l][1]=variance}return{lower_class_limits:lower_class_limits,variance_combinations:variance_combinations}}function jenksBreaks(data,lower_class_limits,n_classes){var k=data.length-1,kclass=[],countNum=n_classes;kclass[n_classes]=data[data.length-1];kclass[0]=data[0];while(countNum>1){kclass[countNum-1]=data[lower_class_limits[k][countNum]-2];k=lower_class_limits[k][countNum]-1;countNum--}return kclass}function jenks(data,n_classes){if(n_classes>data.length)return null;data=data.slice().sort(function(a,b){return a-b});var matrices=jenksMatrices(data,n_classes),lower_class_limits=matrices.lower_class_limits;return jenksBreaks(data,lower_class_limits,n_classes)}function sample_skewness(x){if(x.length<3)return null;var n=x.length,cubed_s=Math.pow(sample_standard_deviation(x),3),sum_cubed_deviations=sum_nth_power_deviations(x,3);return n*sum_cubed_deviations/((n-1)*(n-2)*cubed_s)}var standard_normal_table=[.5,.504,.508,.512,.516,.5199,.5239,.5279,.5319,.5359,.5398,.5438,.5478,.5517,.5557,.5596,.5636,.5675,.5714,.5753,.5793,.5832,.5871,.591,.5948,.5987,.6026,.6064,.6103,.6141,.6179,.6217,.6255,.6293,.6331,.6368,.6406,.6443,.648,.6517,.6554,.6591,.6628,.6664,.67,.6736,.6772,.6808,.6844,.6879,.6915,.695,.6985,.7019,.7054,.7088,.7123,.7157,.719,.7224,.7257,.7291,.7324,.7357,.7389,.7422,.7454,.7486,.7517,.7549,.758,.7611,.7642,.7673,.7704,.7734,.7764,.7794,.7823,.7852,.7881,.791,.7939,.7967,.7995,.8023,.8051,.8078,.8106,.8133,.8159,.8186,.8212,.8238,.8264,.8289,.8315,.834,.8365,.8389,.8413,.8438,.8461,.8485,.8508,.8531,.8554,.8577,.8599,.8621,.8643,.8665,.8686,.8708,.8729,.8749,.877,.879,.881,.883,.8849,.8869,.8888,.8907,.8925,.8944,.8962,.898,.8997,.9015,.9032,.9049,.9066,.9082,.9099,.9115,.9131,.9147,.9162,.9177,.9192,.9207,.9222,.9236,.9251,.9265,.9279,.9292,.9306,.9319,.9332,.9345,.9357,.937,.9382,.9394,.9406,.9418,.9429,.9441,.9452,.9463,.9474,.9484,.9495,.9505,.9515,.9525,.9535,.9545,.9554,.9564,.9573,.9582,.9591,.9599,.9608,.9616,.9625,.9633,.9641,.9649,.9656,.9664,.9671,.9678,.9686,.9693,.9699,.9706,.9713,.9719,.9726,.9732,.9738,.9744,.975,.9756,.9761,.9767,.9772,.9778,.9783,.9788,.9793,.9798,.9803,.9808,.9812,.9817,.9821,.9826,.983,.9834,.9838,.9842,.9846,.985,.9854,.9857,.9861,.9864,.9868,.9871,.9875,.9878,.9881,.9884,.9887,.989,.9893,.9896,.9898,.9901,.9904,.9906,.9909,.9911,.9913,.9916,.9918,.992,.9922,.9925,.9927,.9929,.9931,.9932,.9934,.9936,.9938,.994,.9941,.9943,.9945,.9946,.9948,.9949,.9951,.9952,.9953,.9955,.9956,.9957,.9959,.996,.9961,.9962,.9963,.9964,.9965,.9966,.9967,.9968,.9969,.997,.9971,.9972,.9973,.9974,.9974,.9975,.9976,.9977,.9977,.9978,.9979,.9979,.998,.9981,.9981,.9982,.9982,.9983,.9984,.9984,.9985,.9985,.9986,.9986,.9987,.9987,.9987,.9988,.9988,.9989,.9989,.9989,.999,.999];function cumulative_std_normal_probability(z){var absZ=Math.abs(z),row=Math.floor(absZ*10),column=10*(Math.floor(absZ*100)/10-Math.floor(absZ*100/10)),index=Math.min(row*10+column,standard_normal_table.length-1);if(z>=0){return standard_normal_table[index]}else{return+(1-standard_normal_table[index]).toFixed(4)}}function z_score(x,mean,standard_deviation){return(x-mean)/standard_deviation}function mixin(){var support=!!(Object.defineProperty&&Object.defineProperties);if(!support)throw new Error("without defineProperty, simple-statistics cannot be mixed in");var arrayMethods=["median","standard_deviation","sum","sample_skewness","mean","min","max","quantile","geometric_mean","harmonic_mean"];function wrap(method){return function(){var args=Array.prototype.slice.apply(arguments);args.unshift(this);return ss[method].apply(ss,args)}}for(var i=0;i<arrayMethods.length;i++){Object.defineProperty(Array.prototype,arrayMethods[i],{value:wrap(arrayMethods[i]),configurable:true,enumerable:false,writable:true})}}ss.linear_regression=linear_regression;ss.standard_deviation=standard_deviation;ss.r_squared=r_squared;ss.median=median;ss.mean=mean;ss.mode=mode;ss.min=min;ss.max=max;ss.sum=sum;ss.quantile=quantile;ss.quantile_sorted=quantile_sorted;ss.iqr=iqr;ss.mad=mad;ss.sample_covariance=sample_covariance;ss.sample_correlation=sample_correlation;ss.sample_variance=sample_variance;ss.sample_standard_deviation=sample_standard_deviation;ss.sample_skewness=sample_skewness;ss.geometric_mean=geometric_mean;ss.harmonic_mean=harmonic_mean;ss.variance=variance;ss.t_test=t_test;ss.t_test_two_sample=t_test_two_sample;ss.jenksMatrices=jenksMatrices;ss.jenksBreaks=jenksBreaks;ss.jenks=jenks;ss.bayesian=bayesian;ss.z_score=z_score;ss.cumulative_std_normal_probability=cumulative_std_normal_probability;ss.standard_normal_table=standard_normal_table;ss.average=mean;ss.interquartile_range=iqr;ss.mixin=mixin;ss.median_absolute_deviation=mad})(this)},{}],68:[function(_dereq_,module,exports){var topojson=module.exports=_dereq_("./topojson");topojson.topology=_dereq_("./lib/topojson/topology");topojson.simplify=_dereq_("./lib/topojson/simplify");topojson.clockwise=_dereq_("./lib/topojson/clockwise");topojson.filter=_dereq_("./lib/topojson/filter");topojson.prune=_dereq_("./lib/topojson/prune");topojson.bind=_dereq_("./lib/topojson/bind")},{"./lib/topojson/bind":69,"./lib/topojson/clockwise":72,"./lib/topojson/filter":76,"./lib/topojson/prune":79,"./lib/topojson/simplify":81,"./lib/topojson/topology":84,"./topojson":95}],69:[function(_dereq_,module,exports){var type=_dereq_("./type"),topojson=_dereq_("../../");module.exports=function(topology,propertiesById){var bind=type({geometry:function(geometry){var properties0=geometry.properties,properties1=propertiesById[geometry.id];if(properties1){if(properties0)for(var k in properties1)properties0[k]=properties1[k];else for(var k in properties1){geometry.properties=properties1;break}}this.defaults.geometry.call(this,geometry)},LineString:noop,MultiLineString:noop,Point:noop,MultiPoint:noop,Polygon:noop,MultiPolygon:noop});for(var key in topology.objects){bind.object(topology.objects[key])}};function noop(){}},{"../../":68,"./type":94}],70:[function(_dereq_,module,exports){module.exports=function(objects){var x0=Infinity,y0=Infinity,x1=-Infinity,y1=-Infinity;function boundGeometry(geometry){if(geometry&&boundGeometryType.hasOwnProperty(geometry.type))boundGeometryType[geometry.type](geometry)}var boundGeometryType={GeometryCollection:function(o){o.geometries.forEach(boundGeometry)},Point:function(o){boundPoint(o.coordinates)},MultiPoint:function(o){o.coordinates.forEach(boundPoint)},LineString:function(o){boundLine(o.coordinates)},MultiLineString:function(o){o.coordinates.forEach(boundLine)},Polygon:function(o){o.coordinates.forEach(boundLine)},MultiPolygon:function(o){o.coordinates.forEach(boundMultiLine)}};function boundPoint(coordinates){var x=coordinates[0],y=coordinates[1];if(x<x0)x0=x;if(x>x1)x1=x;if(y<y0)y0=y;if(y>y1)y1=y}function boundLine(coordinates){coordinates.forEach(boundPoint)}function boundMultiLine(coordinates){coordinates.forEach(boundLine)}for(var key in objects){boundGeometry(objects[key])}return[x0,y0,x1,y1]}},{}],71:[function(_dereq_,module,exports){exports.name="cartesian";exports.formatDistance=formatDistance;exports.ringArea=ringArea;exports.absoluteArea=Math.abs;exports.triangleArea=triangleArea;exports.distance=distance;function formatDistance(d){return d.toString()}function ringArea(ring){var i=0,n=ring.length,area=ring[n-1][1]*ring[0][0]-ring[n-1][0]*ring[0][1];while(++i<n){area+=ring[i-1][1]*ring[i][0]-ring[i-1][0]*ring[i][1]}return-area*.5}function triangleArea(triangle){return Math.abs((triangle[0][0]-triangle[2][0])*(triangle[1][1]-triangle[0][1])-(triangle[0][0]-triangle[1][0])*(triangle[2][1]-triangle[0][1]))}function distance(x0,y0,x1,y1){var dx=x0-x1,dy=y0-y1;return Math.sqrt(dx*dx+dy*dy)}},{}],72:[function(_dereq_,module,exports){var type=_dereq_("./type"),systems=_dereq_("./coordinate-systems"),topojson=_dereq_("../../");module.exports=function(object,options){if(object.type==="Topology")clockwiseTopology(object,options);else clockwiseGeometry(object,options)};function clockwiseGeometry(object,options){var system=null;if(options)"coordinate-system"in options&&(system=systems[options["coordinate-system"]]);var clockwisePolygon=clockwisePolygonSystem(system.ringArea,reverse);type({LineString:noop,MultiLineString:noop,Point:noop,MultiPoint:noop,Polygon:function(polygon){clockwisePolygon(polygon.coordinates)},MultiPolygon:function(multiPolygon){multiPolygon.coordinates.forEach(clockwisePolygon)}}).object(object);function reverse(array){array.reverse()}}function clockwiseTopology(topology,options){var system=null;if(options)"coordinate-system"in options&&(system=systems[options["coordinate-system"]]);var clockwisePolygon=clockwisePolygonSystem(ringArea,reverse);var clockwise=type({LineString:noop,MultiLineString:noop,Point:noop,MultiPoint:noop,Polygon:function(polygon){clockwisePolygon(polygon.arcs)},MultiPolygon:function(multiPolygon){multiPolygon.arcs.forEach(clockwisePolygon)}});for(var key in topology.objects){clockwise.object(topology.objects[key])}function ringArea(ring){return system.ringArea(topojson.feature(topology,{type:"Polygon",arcs:[ring]}).geometry.coordinates[0])}function reverse(ring){var i=-1,n=ring.length;ring.reverse();while(++i<n)ring[i]=~ring[i]}}function clockwisePolygonSystem(ringArea,reverse){return function(rings){if(!(n=rings.length))return;var n,areas=new Array(n),max=-Infinity,best,area,t;for(var i=0;i<n;++i){var area=Math.abs(areas[i]=ringArea(rings[i]));if(area>max)max=area,best=i}if(best){t=rings[best],rings[best]=rings[0],rings[0]=t;t=areas[best],areas[best]=areas[0],areas[0]=t}if(areas[0]<0)reverse(rings[0]);for(var i=1;i<n;++i){if(areas[i]>0)reverse(rings[i])}}}function noop(){}},{"../../":68,"./coordinate-systems":74,"./type":94}],73:[function(_dereq_,module,exports){module.exports=function(objects,id){if(arguments.length<2)id=function(d){return d.id};function idObject(object){if(object&&idObjectType.hasOwnProperty(object.type))idObjectType[object.type](object)}function idFeature(feature){var i=id(feature);if(i==null)delete feature.id;else feature.id=i}var idObjectType={Feature:idFeature,FeatureCollection:function(collection){collection.features.forEach(idFeature)}};for(var key in objects){idObject(objects[key])}return objects}},{}],74:[function(_dereq_,module,exports){module.exports={cartesian:_dereq_("./cartesian"),spherical:_dereq_("./spherical")}},{"./cartesian":71,"./spherical":82}],75:[function(_dereq_,module,exports){module.exports=function(topology){var arcs=topology.arcs,i=-1,n=arcs.length;while(++i<n){var arc=arcs[i],j=0,m=arc.length,point=arc[0],x0=point[0],y0=point[1],x1,y1;while(++j<m){point=arc[j];x1=point[0];y1=point[1];arc[j]=[x1-x0,y1-y0];x0=x1;y0=y1}}return topology}},{}],76:[function(_dereq_,module,exports){var type=_dereq_("./type"),prune=_dereq_("./prune"),clockwise=_dereq_("./clockwise"),systems=_dereq_("./coordinate-systems"),topojson=_dereq_("../../");module.exports=function(topology,options){var system=null,forceClockwise=true,minimumArea;if(options)"coordinate-system"in options&&(system=systems[options["coordinate-system"]]),"minimum-area"in options&&(minimumArea=+options["minimum-area"]),"force-clockwise"in options&&(forceClockwise=!!options["force-clockwise"]);if(forceClockwise)clockwise(topology,options);if(!(minimumArea>0))minimumArea=Number.MIN_VALUE;var filter=type({LineString:noop,MultiLineString:noop,Point:noop,MultiPoint:noop,Polygon:function(polygon){polygon.arcs=filterPolygon(polygon.arcs);if(!polygon.arcs||!polygon.arcs.length){polygon.type=null;delete polygon.arcs}},MultiPolygon:function(multiPolygon){multiPolygon.arcs=multiPolygon.arcs.map(filterPolygon).filter(function(polygon){return polygon&&polygon.length});if(!multiPolygon.arcs.length){multiPolygon.type=null;delete multiPolygon.arcs}},GeometryCollection:function(collection){this.defaults.GeometryCollection.call(this,collection);collection.geometries=collection.geometries.filter(function(geometry){return geometry.type!=null});if(!collection.geometries.length){collection.type=null;delete collection.geometries}}});for(var key in topology.objects){filter.object(topology.objects[key])}prune(topology,options);function filterPolygon(arcs){return arcs.length&&filterExteriorRing(arcs[0])?[arcs.shift()].concat(arcs.filter(filterInteriorRing)):null}function filterExteriorRing(ring){return system.absoluteArea(ringArea(ring))>=minimumArea}function filterInteriorRing(ring){return system.absoluteArea(-ringArea(ring))>=minimumArea}function ringArea(ring){return system.ringArea(topojson.feature(topology,{type:"Polygon",arcs:[ring]}).geometry.coordinates[0])}};function noop(){}},{"../../":68,"./clockwise":72,"./coordinate-systems":74,"./prune":79,"./type":94}],77:[function(_dereq_,module,exports){module.exports=function(objects){function geomifyObject(object){return(object&&geomifyObjectType.hasOwnProperty(object.type)?geomifyObjectType[object.type]:geomifyGeometry)(object)}function geomifyFeature(feature){var geometry=feature.geometry;if(geometry==null){feature.type=null}else{geomifyGeometry(geometry);feature.type=geometry.type;if(geometry.geometries)feature.geometries=geometry.geometries;else if(geometry.coordinates)feature.coordinates=geometry.coordinates}delete feature.geometry;return feature}function geomifyGeometry(geometry){if(!geometry)return{type:null};if(geomifyGeometryType.hasOwnProperty(geometry.type))geomifyGeometryType[geometry.type](geometry);return geometry}var geomifyObjectType={Feature:geomifyFeature,FeatureCollection:function(collection){collection.type="GeometryCollection";collection.geometries=collection.features;collection.features.forEach(geomifyFeature);delete collection.features;return collection}};var geomifyGeometryType={GeometryCollection:function(o){var geometries=o.geometries,i=-1,n=geometries.length;while(++i<n)geometries[i]=geomifyGeometry(geometries[i])},MultiPoint:function(o){if(!o.coordinates.length){o.type=null;delete o.coordinates}else if(o.coordinates.length<2){o.type="Point";o.coordinates=o.coordinates[0]}},LineString:function(o){if(!o.coordinates.length){o.type=null;delete o.coordinates}},MultiLineString:function(o){for(var lines=o.coordinates,i=0,N=0,n=lines.length;i<n;++i){var line=lines[i];if(line.length)lines[N++]=line}if(!N){o.type=null;delete o.coordinates}else if(N<2){o.type="LineString";o.coordinates=lines[0]}else{o.coordinates.length=N}},Polygon:function(o){for(var rings=o.coordinates,i=0,N=0,n=rings.length;i<n;++i){var ring=rings[i];if(ring.length)rings[N++]=ring}if(!N){o.type=null;delete o.coordinates}else{o.coordinates.length=N}},MultiPolygon:function(o){for(var polygons=o.coordinates,j=0,M=0,m=polygons.length;j<m;++j){for(var rings=polygons[j],i=0,N=0,n=rings.length;i<n;++i){var ring=rings[i];if(ring.length)rings[N++]=ring}if(N){rings.length=N;polygons[M++]=rings}}if(!M){o.type=null;delete o.coordinates}else if(M<2){o.type="Polygon";o.coordinates=polygons[0]}else{polygons.length=M}}};for(var key in objects){objects[key]=geomifyObject(objects[key])}return objects}},{}],78:[function(_dereq_,module,exports){module.exports=function(objects,filter){function prefilterGeometry(geometry){if(!geometry)return{type:null};if(prefilterGeometryType.hasOwnProperty(geometry.type))prefilterGeometryType[geometry.type](geometry);return geometry}var prefilterGeometryType={GeometryCollection:function(o){var geometries=o.geometries,i=-1,n=geometries.length;while(++i<n)geometries[i]=prefilterGeometry(geometries[i])},Polygon:function(o){for(var rings=o.coordinates,i=0,N=0,n=rings.length;i<n;++i){var ring=rings[i];if(filter(ring))rings[N++]=ring}if(!N){o.type=null;delete o.coordinates}else{o.coordinates.length=N}},MultiPolygon:function(o){for(var polygons=o.coordinates,j=0,M=0,m=polygons.length;j<m;++j){for(var rings=polygons[j],i=0,N=0,n=rings.length;i<n;++i){var ring=rings[i];if(filter(ring))rings[N++]=ring}if(N){rings.length=N;polygons[M++]=rings}}if(!M){o.type=null;delete o.coordinates}else if(M<2){o.type="Polygon";o.coordinates=polygons[0]}else{polygons.length=M}}};for(var key in objects){objects[key]=prefilterGeometry(objects[key])}return objects}},{}],79:[function(_dereq_,module,exports){module.exports=function(topology,options){var verbose=false,objects=topology.objects,oldArcs=topology.arcs,oldArcCount=oldArcs.length,newArcs=topology.arcs=[],newArcCount=0,newIndexByOldIndex=new Array(oldArcs.length);if(options)"verbose"in options&&(verbose=!!options["verbose"]);function pruneGeometry(geometry){if(geometry&&pruneGeometryType.hasOwnProperty(geometry.type))pruneGeometryType[geometry.type](geometry)}var pruneGeometryType={GeometryCollection:function(o){o.geometries.forEach(pruneGeometry)},LineString:function(o){pruneArcs(o.arcs)},MultiLineString:function(o){o.arcs.forEach(pruneArcs)},Polygon:function(o){o.arcs.forEach(pruneArcs)},MultiPolygon:function(o){o.arcs.forEach(pruneMultiArcs)}};function pruneArcs(arcs){for(var i=0,m=0,n=arcs.length;i<n;++i){var oldIndex=arcs[i],oldReverse=oldIndex<0&&(oldIndex=~oldIndex,true),oldArc=oldArcs[oldIndex],newIndex;if(oldArc.length<3&&!oldArc[1][0]&&!oldArc[1][1])continue;if((newIndex=newIndexByOldIndex[oldIndex])==null){newIndexByOldIndex[oldIndex]=newIndex=newArcCount++;newArcs[newIndex]=oldArcs[oldIndex]}arcs[m++]=oldReverse?~newIndex:newIndex}if(!(arcs.length=m)&&n){if((newIndex=newIndexByOldIndex[oldIndex])==null){newIndexByOldIndex[oldIndex]=newIndex=newArcCount++;newArcs[newIndex]=oldArcs[oldIndex]}arcs[0]=oldReverse?~newIndex:newIndex}}function pruneMultiArcs(arcs){arcs.forEach(pruneArcs)}for(var key in objects){pruneGeometry(objects[key])}if(verbose)console.warn("prune: retained "+newArcCount+" / "+oldArcCount+" arcs ("+Math.round(newArcCount/oldArcCount*100)+"%)");return topology};function noop(){}},{}],80:[function(_dereq_,module,exports){module.exports=function(objects,bbox,Q){var x0=isFinite(bbox[0])?bbox[0]:0,y0=isFinite(bbox[1])?bbox[1]:0,x1=isFinite(bbox[2])?bbox[2]:0,y1=isFinite(bbox[3])?bbox[3]:0,kx=x1-x0?(Q-1)/(x1-x0):1,ky=y1-y0?(Q-1)/(y1-y0):1;function quantizeGeometry(geometry){if(geometry&&quantizeGeometryType.hasOwnProperty(geometry.type))quantizeGeometryType[geometry.type](geometry)}var quantizeGeometryType={GeometryCollection:function(o){o.geometries.forEach(quantizeGeometry)},Point:function(o){quantizePoint(o.coordinates)},MultiPoint:function(o){o.coordinates.forEach(quantizePoint)},LineString:function(o){var line=o.coordinates;quantizeLine(line);if(line.length<2)line[1]=line[0]},MultiLineString:function(o){for(var lines=o.coordinates,i=0,n=lines.length;i<n;++i){var line=lines[i];quantizeLine(line);if(line.length<2)line[1]=line[0]}},Polygon:function(o){for(var rings=o.coordinates,i=0,n=rings.length;i<n;++i){var ring=rings[i];quantizeLine(ring);while(ring.length<4)ring.push(ring[0])}},MultiPolygon:function(o){for(var polygons=o.coordinates,i=0,n=polygons.length;i<n;++i){for(var rings=polygons[i],j=0,m=rings.length;j<m;++j){var ring=rings[j];quantizeLine(ring);while(ring.length<4)ring.push(ring[0])}}}};function quantizePoint(coordinates){coordinates[0]=Math.round((coordinates[0]-x0)*kx);coordinates[1]=Math.round((coordinates[1]-y0)*ky)}function quantizeLine(coordinates){var i=0,j=1,n=coordinates.length,pi=coordinates[0],pj,px=pi[0]=Math.round((pi[0]-x0)*kx),py=pi[1]=Math.round((pi[1]-y0)*ky),x,y;while(++i<n){pi=coordinates[i];x=Math.round((pi[0]-x0)*kx);y=Math.round((pi[1]-y0)*ky);if(x!==px||y!==py){pj=coordinates[j++];pj[0]=px=x;pj[1]=py=y}}coordinates.length=j}for(var key in objects){quantizeGeometry(objects[key])}return{scale:[1/kx,1/ky],translate:[x0,y0]}}},{}],81:[function(_dereq_,module,exports){var topojson=_dereq_("../../"),systems=_dereq_("./coordinate-systems");module.exports=function(topology,options){var minimumArea=0,retainProportion,verbose=false,system=null,N=topology.arcs.reduce(function(p,v){return p+v.length},0),M=0;if(options)"minimum-area"in options&&(minimumArea=+options["minimum-area"]),"coordinate-system"in options&&(system=systems[options["coordinate-system"]]),"retain-proportion"in options&&(retainProportion=+options["retain-proportion"]),"verbose"in options&&(verbose=!!options["verbose"]);topojson.presimplify(topology,system.triangleArea);if(retainProportion){var areas=[];topology.arcs.forEach(function(arc){arc.forEach(function(point){if(isFinite(point[2]))areas.push(point[2])})});options["minimum-area"]=minimumArea=N?areas.sort(function(a,b){return b-a})[Math.ceil((N-1)*retainProportion)]:0;if(verbose)console.warn("simplification: effective minimum area "+minimumArea.toPrecision(3))}topology.arcs.forEach(topology.transform?function(arc){var dx=0,dy=0,i=-1,j=-1,n=arc.length,source,target;while(++i<n){source=arc[i];if(source[2]>=minimumArea){target=arc[++j];target[0]=source[0]+dx;target[1]=source[1]+dy;dx=dy=0}else{dx+=source[0];dy+=source[1]}}arc.length=++j}:function(arc){var i=-1,j=-1,n=arc.length,point;while(++i<n){point=arc[i];if(point[2]>=minimumArea){arc[++j]=point}}arc.length=++j});topology.arcs.forEach(function(arc){var i=-1,n=arc.length;while(++i<n)arc[i].length=2;M+=arc.length});if(verbose)console.warn("simplification: retained "+M+" / "+N+" points ("+Math.round(M/N*100)+"%)");return topology}},{"../../":68,"./coordinate-systems":74}],82:[function(_dereq_,module,exports){var π=Math.PI,π_4=π/4,radians=π/180;exports.name="spherical";exports.formatDistance=formatDistance;exports.ringArea=ringArea;exports.absoluteArea=absoluteArea;exports.triangleArea=triangleArea;exports.distance=haversinDistance;function formatDistance(radians){var km=radians*6371;return(km>1?km.toFixed(3)+"km":(km*1e3).toPrecision(3)+"m")+" ("+(radians*180/Math.PI).toPrecision(3)+"°)"}function ringArea(ring){if(!ring.length)return 0;var area=0,p=ring[0],λ=p[0]*radians,φ=p[1]*radians/2+π_4,λ0=λ,cosφ0=Math.cos(φ),sinφ0=Math.sin(φ);for(var i=1,n=ring.length;i<n;++i){p=ring[i],λ=p[0]*radians,φ=p[1]*radians/2+π_4;var dλ=λ-λ0,cosφ=Math.cos(φ),sinφ=Math.sin(φ),k=sinφ0*sinφ,u=cosφ0*cosφ+k*Math.cos(dλ),v=k*Math.sin(dλ);area+=Math.atan2(v,u);λ0=λ,cosφ0=cosφ,sinφ0=sinφ}return 2*(area>π?area-2*π:area<-π?area+2*π:area)}function absoluteArea(a){return a<0?a+4*π:a}function triangleArea(t){var a=distance(t[0],t[1]),b=distance(t[1],t[2]),c=distance(t[2],t[0]),s=(a+b+c)/2;return 4*Math.atan(Math.sqrt(Math.max(0,Math.tan(s/2)*Math.tan((s-a)/2)*Math.tan((s-b)/2)*Math.tan((s-c)/2))))}function distance(a,b){var Δλ=(b[0]-a[0])*radians,sinΔλ=Math.sin(Δλ),cosΔλ=Math.cos(Δλ),sinφ0=Math.sin(a[1]*radians),cosφ0=Math.cos(a[1]*radians),sinφ1=Math.sin(b[1]*radians),cosφ1=Math.cos(b[1]*radians),_;return Math.atan2(Math.sqrt((_=cosφ1*sinΔλ)*_+(_=cosφ0*sinφ1-sinφ0*cosφ1*cosΔλ)*_),sinφ0*sinφ1+cosφ0*cosφ1*cosΔλ)}function haversinDistance(x0,y0,x1,y1){x0*=radians,y0*=radians,x1*=radians,y1*=radians;return 2*Math.asin(Math.sqrt(haversin(y1-y0)+Math.cos(y0)*Math.cos(y1)*haversin(x1-x0)))}function haversin(x){return(x=Math.sin(x/2))*x}},{}],83:[function(_dereq_,module,exports){var type=_dereq_("./type");module.exports=function(objects,transform){var ε=.01,x0=-180,x0e=x0+ε,x1=180,x1e=x1-ε,y0=-90,y0e=y0+ε,y1=90,y1e=y1-ε,fragments=[];if(transform){var kx=transform.scale[0],ky=transform.scale[1],dx=transform.translate[0],dy=transform.translate[1];x0=Math.round((x0-dx)/kx);x1=Math.round((x1-dx)/kx);y0=Math.round((y0-dy)/ky);y1=Math.round((y1-dy)/ky);x0e=Math.round((x0e-dx)/kx);x1e=Math.round((x1e-dx)/kx);y0e=Math.round((y0e-dy)/ky);y1e=Math.round((y1e-dy)/ky)}function normalizePoint(y){return y<=y0e?[0,y0]:y>=y1e?[0,y1]:[x0,y]}var stitch=type({polygon:function(polygon){var rings=[];for(var j=0,m=polygon.length;j<m;++j){var ring=polygon[j],fragments=[];fragments.push(ring);for(var i=0,n=ring.length;i<n;++i){var point=ring[i],x=point[0],y=point[1];if(x<=x0e||x>=x1e||y<=y0e||y>=y1e){for(var k=i+1;k<n;++k){var pointk=ring[k],xk=pointk[0],yk=pointk[1];if(xk>x0e&&xk<x1e&&yk>y0e&&yk<y1e)break}if(k===i+1)continue;if(i){var fragmentBefore=ring.slice(0,i+1);fragmentBefore[fragmentBefore.length-1]=normalizePoint(y);fragments[fragments.length-1]=fragmentBefore}else{fragments.pop()}if(k>=n)break;fragments.push(ring=ring.slice(k-1));ring[0]=normalizePoint(ring[0][1]);i=-1;n=ring.length}}var fragmentByStart={},fragmentByEnd={};for(var i=0,n=fragments.length;i<n;++i){var fragment=fragments[i],start=fragment[0],end=fragment[fragment.length-1];if(start[0]===end[0]&&start[1]===end[1]){rings.push(fragment);fragments[i]=null;continue}fragment.index=i;fragmentByStart[start]=fragmentByEnd[end]=fragment}for(var i=0;i<n;++i){var fragment=fragments[i];if(fragment){var start=fragment[0],end=fragment[fragment.length-1],startFragment=fragmentByEnd[start],endFragment=fragmentByStart[end];delete fragmentByStart[start];delete fragmentByEnd[end];if(start[0]===end[0]&&start[1]===end[1]){rings.push(fragment);continue}if(startFragment){delete fragmentByEnd[start];delete fragmentByStart[startFragment[0]];startFragment.pop();fragments[startFragment.index]=null;fragment=startFragment.concat(fragment);if(startFragment===endFragment){rings.push(fragment)}else{fragment.index=n++;fragments.push(fragmentByStart[fragment[0]]=fragmentByEnd[fragment[fragment.length-1]]=fragment)}}else if(endFragment){delete fragmentByStart[end];delete fragmentByEnd[endFragment[endFragment.length-1]];fragment.pop();fragment=fragment.concat(endFragment);fragment.index=n++;fragments[endFragment.index]=null;fragments.push(fragmentByStart[fragment[0]]=fragmentByEnd[fragment[fragment.length-1]]=fragment)}else{fragment.push(fragment[0]);rings.push(fragment)}}}}for(var i=0,n=polygon.length=rings.length;i<n;++i){polygon[i]=rings[i]}}});for(var key in objects){stitch.object(objects[key])}}},{"./type":94}],84:[function(_dereq_,module,exports){var type=_dereq_("./type"),stitch=_dereq_("./stitch"),systems=_dereq_("./coordinate-systems"),topologize=_dereq_("./topology/index"),delta=_dereq_("./delta"),geomify=_dereq_("./geomify"),prefilter=_dereq_("./prefilter"),quantize=_dereq_("./quantize"),bounds=_dereq_("./bounds"),computeId=_dereq_("./compute-id"),transformProperties=_dereq_("./transform-properties");var ε=1e-6;module.exports=function(objects,options){var Q=1e4,id=function(d){return d.id},propertyTransform=function(){},transform,minimumArea=0,stitchPoles=true,verbose=false,system=null;if(options)"verbose"in options&&(verbose=!!options["verbose"]),"stitch-poles"in options&&(stitchPoles=!!options["stitch-poles"]),"coordinate-system"in options&&(system=systems[options["coordinate-system"]]),"minimum-area"in options&&(minimumArea=+options["minimum-area"]),"quantization"in options&&(Q=+options["quantization"]),"id"in options&&(id=options["id"]),"property-transform"in options&&(propertyTransform=options["property-transform"]);computeId(objects,id);transformProperties(objects,propertyTransform);geomify(objects);var bbox=bounds(objects);var oversize=bbox[0]<-180-ε||bbox[1]<-90-ε||bbox[2]>180+ε||bbox[3]>90+ε;if(!system){system=systems[oversize?"cartesian":"spherical"];if(options)options["coordinate-system"]=system.name}if(system===systems.spherical){if(oversize)throw new Error("spherical coordinates outside of [±180°, ±90°]");if(bbox[0]<-180+ε)bbox[0]=-180;if(bbox[1]<-90+ε)bbox[1]=-90;if(bbox[2]>180-ε)bbox[2]=180;if(bbox[3]>90-ε)bbox[3]=90}if(verbose){console.warn("bounds: "+bbox.join(" ")+" ("+system.name+")")}if(minimumArea)prefilter(objects,function(ring){return system.absoluteArea(system.ringArea(ring))>=minimumArea});if(Q){transform=quantize(objects,bbox,Q);if(verbose){console.warn("quantization: "+transform.scale.map(function(degrees){return system.formatDistance(degrees/180*Math.PI)}).join(" "))}}if(system===systems.spherical&&stitchPoles){stitch(objects,transform)}var topology=topologize(objects);topology.bbox=bbox;if(verbose){console.warn("topology: "+topology.arcs.length+" arcs, "+topology.arcs.reduce(function(p,v){return p+v.length},0)+" points")}if(Q)topology.transform=transform,delta(topology);return topology}},{"./bounds":70,"./compute-id":73,"./coordinate-systems":74,"./delta":75,"./geomify":77,"./prefilter":78,"./quantize":80,"./stitch":83,"./topology/index":89,"./transform-properties":93,"./type":94}],85:[function(_dereq_,module,exports){var join=_dereq_("./join");module.exports=function(topology){var junctionByPoint=join(topology),coordinates=topology.coordinates,lines=topology.lines,rings=topology.rings;for(var i=0,n=lines.length;i<n;++i){var line=lines[i],lineMid=line[0],lineEnd=line[1];while(++lineMid<lineEnd){if(junctionByPoint.get(coordinates[lineMid])){var next={0:lineMid,1:line[1]};line[1]=lineMid;line=line.next=next}}}for(var i=0,n=rings.length;i<n;++i){var ring=rings[i],ringStart=ring[0],ringMid=ringStart,ringEnd=ring[1],ringFixed=junctionByPoint.get(coordinates[ringStart]);while(++ringMid<ringEnd){if(junctionByPoint.get(coordinates[ringMid])){if(ringFixed){var next={0:ringMid,1:ring[1]};ring[1]=ringMid;ring=ring.next=next}else{rotateArray(coordinates,ringStart,ringEnd,ringEnd-ringMid);coordinates[ringEnd]=coordinates[ringStart];ringFixed=true;ringMid=ringStart}}}}return topology};function rotateArray(array,start,end,offset){reverse(array,start,end);reverse(array,start,start+offset);reverse(array,start+offset,end)}function reverse(array,start,end){for(var mid=start+(end-- -start>>1),t;start<mid;++start,--end){t=array[start],array[start]=array[end],array[end]=t}}},{"./join":90}],86:[function(_dereq_,module,exports){var join=_dereq_("./join"),hashtable=_dereq_("./hashtable"),hashPoint=_dereq_("./point-hash"),equalPoint=_dereq_("./point-equal");module.exports=function(topology){var coordinates=topology.coordinates,lines=topology.lines,rings=topology.rings,arcCount=lines.length+rings.length;delete topology.lines;delete topology.rings;for(var i=0,n=lines.length;i<n;++i){var line=lines[i];while(line=line.next)++arcCount}for(var i=0,n=rings.length;i<n;++i){var ring=rings[i];while(ring=ring.next)++arcCount
}var arcsByEnd=hashtable(arcCount*2,hashPoint,equalPoint),arcs=topology.arcs=[];for(var i=0,n=lines.length;i<n;++i){var line=lines[i];do{dedupLine(line)}while(line=line.next)}for(var i=0,n=rings.length;i<n;++i){var ring=rings[i];if(ring.next){do{dedupLine(ring)}while(ring=ring.next)}else{dedupRing(ring)}}function dedupLine(arc){var startPoint,endPoint,startArcs,endArcs;if(startArcs=arcsByEnd.get(startPoint=coordinates[arc[0]])){for(var i=0,n=startArcs.length;i<n;++i){var startArc=startArcs[i];if(equalLine(startArc,arc)){arc[0]=startArc[0];arc[1]=startArc[1];return}}}if(endArcs=arcsByEnd.get(endPoint=coordinates[arc[1]])){for(var i=0,n=endArcs.length;i<n;++i){var endArc=endArcs[i];if(reverseEqualLine(endArc,arc)){arc[1]=endArc[0];arc[0]=endArc[1];return}}}if(startArcs)startArcs.push(arc);else arcsByEnd.set(startPoint,[arc]);if(endArcs)endArcs.push(arc);else arcsByEnd.set(endPoint,[arc]);arcs.push(arc)}function dedupRing(arc){var endPoint,endArcs;if(endArcs=arcsByEnd.get(endPoint=coordinates[arc[0]])){for(var i=0,n=endArcs.length;i<n;++i){var endArc=endArcs[i];if(equalRing(endArc,arc)){arc[0]=endArc[0];arc[1]=endArc[1];return}if(reverseEqualRing(endArc,arc)){arc[0]=endArc[1];arc[1]=endArc[0];return}}}if(endArcs=arcsByEnd.get(endPoint=coordinates[arc[0]+findMinimumOffset(arc)])){for(var i=0,n=endArcs.length;i<n;++i){var endArc=endArcs[i];if(equalRing(endArc,arc)){arc[0]=endArc[0];arc[1]=endArc[1];return}if(reverseEqualRing(endArc,arc)){arc[0]=endArc[1];arc[1]=endArc[0];return}}}if(endArcs)endArcs.push(arc);else arcsByEnd.set(endPoint,[arc]);arcs.push(arc)}function equalLine(arcA,arcB){var ia=arcA[0],ib=arcB[0],ja=arcA[1],jb=arcB[1];if(ia-ja!==ib-jb)return false;for(;ia<=ja;++ia,++ib)if(!equalPoint(coordinates[ia],coordinates[ib]))return false;return true}function reverseEqualLine(arcA,arcB){var ia=arcA[0],ib=arcB[0],ja=arcA[1],jb=arcB[1];if(ia-ja!==ib-jb)return false;for(;ia<=ja;++ia,--jb)if(!equalPoint(coordinates[ia],coordinates[jb]))return false;return true}function equalRing(arcA,arcB){var ia=arcA[0],ib=arcB[0],ja=arcA[1],jb=arcB[1],n=ja-ia;if(n!==jb-ib)return false;var ka=findMinimumOffset(arcA),kb=findMinimumOffset(arcB);for(var i=0;i<n;++i){if(!equalPoint(coordinates[ia+(i+ka)%n],coordinates[ib+(i+kb)%n]))return false}return true}function reverseEqualRing(arcA,arcB){var ia=arcA[0],ib=arcB[0],ja=arcA[1],jb=arcB[1],n=ja-ia;if(n!==jb-ib)return false;var ka=findMinimumOffset(arcA),kb=n-findMinimumOffset(arcB);for(var i=0;i<n;++i){if(!equalPoint(coordinates[ia+(i+ka)%n],coordinates[jb-(i+kb)%n]))return false}return true}function findMinimumOffset(arc){var start=arc[0],end=arc[1],mid=start,minimum=mid,minimumPoint=coordinates[mid];while(++mid<end){var point=coordinates[mid];if(point[0]<minimumPoint[0]||point[0]===minimumPoint[0]&&point[1]<minimumPoint[1]){minimum=mid;minimumPoint=point}}return minimum-start}return topology}},{"./hashtable":88,"./join":90,"./point-equal":91,"./point-hash":92}],87:[function(_dereq_,module,exports){module.exports=function(objects){var index=-1,lines=[],rings=[],coordinates=[];function extractGeometry(geometry){if(geometry&&extractGeometryType.hasOwnProperty(geometry.type))extractGeometryType[geometry.type](geometry)}var extractGeometryType={GeometryCollection:function(o){o.geometries.forEach(extractGeometry)},LineString:function(o){o.arcs=extractLine(o.coordinates);delete o.coordinates},MultiLineString:function(o){o.arcs=o.coordinates.map(extractLine);delete o.coordinates},Polygon:function(o){o.arcs=o.coordinates.map(extractRing);delete o.coordinates},MultiPolygon:function(o){o.arcs=o.coordinates.map(extractMultiRing);delete o.coordinates}};function extractLine(line){for(var i=0,n=line.length;i<n;++i)coordinates[++index]=line[i];var arc={0:index-n+1,1:index};lines.push(arc);return arc}function extractRing(ring){for(var i=0,n=ring.length;i<n;++i)coordinates[++index]=ring[i];var arc={0:index-n+1,1:index};rings.push(arc);return arc}function extractMultiRing(rings){return rings.map(extractRing)}for(var key in objects){extractGeometry(objects[key])}return{type:"Topology",coordinates:coordinates,lines:lines,rings:rings,objects:objects}}},{}],88:[function(_dereq_,module,exports){module.exports=function(size,hash,equal){var hashtable=new Array(size=1<<Math.ceil(Math.log(size)/Math.LN2)),mask=size-1,free=size;function set(key,value){var index=hash(key)&mask,match=hashtable[index],cycle=!index;while(match!=null){if(equal(match.key,key))return match.value=value;match=hashtable[index=index+1&mask];if(!index&&cycle++)throw new Error("full hashtable")}hashtable[index]={key:key,value:value};--free;return value}function get(key,missingValue){var index=hash(key)&mask,match=hashtable[index],cycle=!index;while(match!=null){if(equal(match.key,key))return match.value;match=hashtable[index=index+1&mask];if(!index&&cycle++)break}return missingValue}function remove(key){var index=hash(key)&mask,match=hashtable[index],cycle=!index;while(match!=null){if(equal(match.key,key)){hashtable[index]=null;match=hashtable[index=index+1&mask];if(match!=null){++free;hashtable[index]=null;set(match.key,match.value)}++free;return true}match=hashtable[index=index+1&mask];if(!index&&cycle++)break}return false}function keys(){var keys=[];for(var i=0,n=hashtable.length;i<n;++i){var match=hashtable[i];if(match!=null)keys.push(match.key)}return keys}return{set:set,get:get,remove:remove,keys:keys}}},{}],89:[function(_dereq_,module,exports){var hashtable=_dereq_("./hashtable"),extract=_dereq_("./extract"),cut=_dereq_("./cut"),dedup=_dereq_("./dedup");module.exports=function(objects){var topology=dedup(cut(extract(objects))),coordinates=topology.coordinates,indexByArc=hashtable(topology.arcs.length,hashArc,equalArc);objects=topology.objects;topology.arcs=topology.arcs.map(function(arc,i){indexByArc.set(arc,i);return coordinates.slice(arc[0],arc[1]+1)});delete topology.coordinates;coordinates=null;function indexGeometry(geometry){if(geometry&&indexGeometryType.hasOwnProperty(geometry.type))indexGeometryType[geometry.type](geometry)}var indexGeometryType={GeometryCollection:function(o){o.geometries.forEach(indexGeometry)},LineString:function(o){o.arcs=indexArcs(o.arcs)},MultiLineString:function(o){o.arcs=o.arcs.map(indexArcs)},Polygon:function(o){o.arcs=o.arcs.map(indexArcs)},MultiPolygon:function(o){o.arcs=o.arcs.map(indexMultiArcs)}};function indexArcs(arc){var indexes=[];do{var index=indexByArc.get(arc);indexes.push(arc[0]<arc[1]?index:~index)}while(arc=arc.next);return indexes}function indexMultiArcs(arcs){return arcs.map(indexArcs)}for(var key in objects){indexGeometry(objects[key])}return topology};function hashArc(arc){var i=arc[0],j=arc[1],t;if(j<i)t=i,i=j,j=t;return i+31*j}function equalArc(arcA,arcB){var ia=arcA[0],ja=arcA[1],ib=arcB[0],jb=arcB[1],t;if(ja<ia)t=ia,ia=ja,ja=t;if(jb<ib)t=ib,ib=jb,jb=t;return ia===ib&&ja===jb}},{"./cut":85,"./dedup":86,"./extract":87,"./hashtable":88}],90:[function(_dereq_,module,exports){var hashtable=_dereq_("./hashtable"),hashPoint=_dereq_("./point-hash"),equalPoint=_dereq_("./point-equal");module.exports=function(topology){var coordinates=topology.coordinates,lines=topology.lines,rings=topology.rings,visitedByPoint,neighborsByPoint=hashtable(coordinates.length,hashPoint,equalPoint),junctionByPoint=hashtable(coordinates.length,hashPoint,equalPoint);for(var i=0,n=lines.length;i<n;++i){var line=lines[i],lineStart=line[0],lineEnd=line[1],previousPoint=null,currentPoint=coordinates[lineStart],nextPoint=coordinates[++lineStart];visitedByPoint=hashtable(lineEnd-lineStart,hashPoint,equalPoint);junctionByPoint.set(currentPoint,true);while(++lineStart<=lineEnd){sequence(previousPoint=currentPoint,currentPoint=nextPoint,nextPoint=coordinates[lineStart])}junctionByPoint.set(nextPoint,true)}for(var i=0,n=rings.length;i<n;++i){var ring=rings[i],ringStart=ring[0]+1,ringEnd=ring[1],previousPoint=coordinates[ringEnd-1],currentPoint=coordinates[ringStart-1],nextPoint=coordinates[ringStart];visitedByPoint=hashtable(ringEnd-ringStart+1,hashPoint,equalPoint);sequence(previousPoint,currentPoint,nextPoint);while(++ringStart<=ringEnd){sequence(previousPoint=currentPoint,currentPoint=nextPoint,nextPoint=coordinates[ringStart])}}function sequence(previousPoint,currentPoint,nextPoint){if(visitedByPoint.get(currentPoint))return;visitedByPoint.set(currentPoint,true);var neighbors=neighborsByPoint.get(currentPoint);if(neighbors){if(!(equalPoint(neighbors[0],previousPoint)&&equalPoint(neighbors[1],nextPoint))&&!(equalPoint(neighbors[0],nextPoint)&&equalPoint(neighbors[1],previousPoint))){junctionByPoint.set(currentPoint,true)}}else{neighborsByPoint.set(currentPoint,[previousPoint,nextPoint])}}return junctionByPoint}},{"./hashtable":88,"./point-equal":91,"./point-hash":92}],91:[function(_dereq_,module,exports){module.exports=function(pointA,pointB){return pointA[0]===pointB[0]&&pointA[1]===pointB[1]}},{}],92:[function(_dereq_,module,exports){var hashBuffer=new ArrayBuffer(8),hashFloats=new Float64Array(hashBuffer),hashInts=new Int32Array(hashBuffer);function hashFloat(x){hashFloats[0]=x;x=hashInts[1]^hashInts[0];x^=x>>>20^x>>>12;x^=x>>>7^x>>>4;return x}module.exports=function(point){var h=hashFloat(point[0])+31*hashFloat(point[1])|0;return h<0?~h:h}},{}],93:[function(_dereq_,module,exports){module.exports=function(objects,propertyTransform){if(arguments.length<2)propertyTransform=function(){};function transformObject(object){if(object&&transformObjectType.hasOwnProperty(object.type))transformObjectType[object.type](object)}function transformFeature(feature){if(feature.properties){var properties0=feature.properties,properties1={},empty=true;for(var key0 in properties0){if(propertyTransform(properties1,key0,properties0[key0])){empty=false}}if(empty)delete feature.properties;else feature.properties=properties1}}var transformObjectType={Feature:transformFeature,FeatureCollection:function(collection){collection.features.forEach(transformFeature)}};for(var key in objects){transformObject(objects[key])}return objects}},{}],94:[function(_dereq_,module,exports){module.exports=function(types){for(var type in typeDefaults){if(!(type in types)){types[type]=typeDefaults[type]}}types.defaults=typeDefaults;return types};var typeDefaults={Feature:function(feature){if(feature.geometry)this.geometry(feature.geometry)},FeatureCollection:function(collection){var features=collection.features,i=-1,n=features.length;while(++i<n)this.Feature(features[i])},GeometryCollection:function(collection){var geometries=collection.geometries,i=-1,n=geometries.length;while(++i<n)this.geometry(geometries[i])},LineString:function(lineString){this.line(lineString.coordinates)},MultiLineString:function(multiLineString){var coordinates=multiLineString.coordinates,i=-1,n=coordinates.length;while(++i<n)this.line(coordinates[i])},MultiPoint:function(multiPoint){var coordinates=multiPoint.coordinates,i=-1,n=coordinates.length;while(++i<n)this.point(coordinates[i])},MultiPolygon:function(multiPolygon){var coordinates=multiPolygon.coordinates,i=-1,n=coordinates.length;while(++i<n)this.polygon(coordinates[i])},Point:function(point){this.point(point.coordinates)},Polygon:function(polygon){this.polygon(polygon.coordinates)},object:function(object){return object==null?null:typeObjects.hasOwnProperty(object.type)?this[object.type](object):this.geometry(object)},geometry:function(geometry){return geometry==null?null:typeGeometries.hasOwnProperty(geometry.type)?this[geometry.type](geometry):null},point:function(){},line:function(coordinates){var i=-1,n=coordinates.length;while(++i<n)this.point(coordinates[i])},polygon:function(coordinates){var i=-1,n=coordinates.length;while(++i<n)this.line(coordinates[i])}};var typeGeometries={LineString:1,MultiLineString:1,MultiPoint:1,MultiPolygon:1,Point:1,Polygon:1,GeometryCollection:1};var typeObjects={Feature:1,FeatureCollection:1}},{}],95:[function(_dereq_,module,exports){!function(){var topojson={version:"1.4.9",mesh:mesh,feature:featureOrCollection,neighbors:neighbors,presimplify:presimplify};function merge(topology,arcs){var fragmentByStart={},fragmentByEnd={};arcs.forEach(function(i){var e=ends(i),start=e[0],end=e[1],f,g;if(f=fragmentByEnd[start]){delete fragmentByEnd[f.end];f.push(i);f.end=end;if(g=fragmentByStart[end]){delete fragmentByStart[g.start];var fg=g===f?f:f.concat(g);fragmentByStart[fg.start=f.start]=fragmentByEnd[fg.end=g.end]=fg}else if(g=fragmentByEnd[end]){delete fragmentByStart[g.start];delete fragmentByEnd[g.end];var fg=f.concat(g.map(function(i){return~i}).reverse());fragmentByStart[fg.start=f.start]=fragmentByEnd[fg.end=g.start]=fg}else{fragmentByStart[f.start]=fragmentByEnd[f.end]=f}}else if(f=fragmentByStart[end]){delete fragmentByStart[f.start];f.unshift(i);f.start=start;if(g=fragmentByEnd[start]){delete fragmentByEnd[g.end];var gf=g===f?f:g.concat(f);fragmentByStart[gf.start=g.start]=fragmentByEnd[gf.end=f.end]=gf}else if(g=fragmentByStart[start]){delete fragmentByStart[g.start];delete fragmentByEnd[g.end];var gf=g.map(function(i){return~i}).reverse().concat(f);fragmentByStart[gf.start=g.end]=fragmentByEnd[gf.end=f.end]=gf}else{fragmentByStart[f.start]=fragmentByEnd[f.end]=f}}else if(f=fragmentByStart[start]){delete fragmentByStart[f.start];f.unshift(~i);f.start=end;if(g=fragmentByEnd[end]){delete fragmentByEnd[g.end];var gf=g===f?f:g.concat(f);fragmentByStart[gf.start=g.start]=fragmentByEnd[gf.end=f.end]=gf}else if(g=fragmentByStart[end]){delete fragmentByStart[g.start];delete fragmentByEnd[g.end];var gf=g.map(function(i){return~i}).reverse().concat(f);fragmentByStart[gf.start=g.end]=fragmentByEnd[gf.end=f.end]=gf}else{fragmentByStart[f.start]=fragmentByEnd[f.end]=f}}else if(f=fragmentByEnd[end]){delete fragmentByEnd[f.end];f.push(~i);f.end=start;if(g=fragmentByEnd[start]){delete fragmentByStart[g.start];var fg=g===f?f:f.concat(g);fragmentByStart[fg.start=f.start]=fragmentByEnd[fg.end=g.end]=fg}else if(g=fragmentByStart[start]){delete fragmentByStart[g.start];delete fragmentByEnd[g.end];var fg=f.concat(g.map(function(i){return~i}).reverse());fragmentByStart[fg.start=f.start]=fragmentByEnd[fg.end=g.start]=fg}else{fragmentByStart[f.start]=fragmentByEnd[f.end]=f}}else{f=[i];fragmentByStart[f.start=start]=fragmentByEnd[f.end=end]=f}});function ends(i){var arc=topology.arcs[i],p0=arc[0],p1=[0,0];arc.forEach(function(dp){p1[0]+=dp[0],p1[1]+=dp[1]});return[p0,p1]}var fragments=[];for(var k in fragmentByEnd)fragments.push(fragmentByEnd[k]);return fragments}function mesh(topology,o,filter){var arcs=[];if(arguments.length>1){var geomsByArc=[],geom;function arc(i){if(i<0)i=~i;(geomsByArc[i]||(geomsByArc[i]=[])).push(geom)}function line(arcs){arcs.forEach(arc)}function polygon(arcs){arcs.forEach(line)}function geometry(o){if(o.type==="GeometryCollection")o.geometries.forEach(geometry);else if(o.type in geometryType){geom=o;geometryType[o.type](o.arcs)}}var geometryType={LineString:line,MultiLineString:polygon,Polygon:polygon,MultiPolygon:function(arcs){arcs.forEach(polygon)}};geometry(o);geomsByArc.forEach(arguments.length<3?function(geoms,i){arcs.push(i)}:function(geoms,i){if(filter(geoms[0],geoms[geoms.length-1]))arcs.push(i)})}else{for(var i=0,n=topology.arcs.length;i<n;++i)arcs.push(i)}return object(topology,{type:"MultiLineString",arcs:merge(topology,arcs)})}function featureOrCollection(topology,o){return o.type==="GeometryCollection"?{type:"FeatureCollection",features:o.geometries.map(function(o){return feature(topology,o)})}:feature(topology,o)}function feature(topology,o){var f={type:"Feature",id:o.id,properties:o.properties||{},geometry:object(topology,o)};if(o.id==null)delete f.id;return f}function object(topology,o){var absolute=transformAbsolute(topology.transform),arcs=topology.arcs;function arc(i,points){if(points.length)points.pop();for(var a=arcs[i<0?~i:i],k=0,n=a.length,p;k<n;++k){points.push(p=a[k].slice());absolute(p,k)}if(i<0)reverse(points,n)}function point(p){p=p.slice();absolute(p,0);return p}function line(arcs){var points=[];for(var i=0,n=arcs.length;i<n;++i)arc(arcs[i],points);if(points.length<2)points.push(points[0].slice());return points}function ring(arcs){var points=line(arcs);while(points.length<4)points.push(points[0].slice());return points}function polygon(arcs){return arcs.map(ring)}function geometry(o){var t=o.type;return t==="GeometryCollection"?{type:t,geometries:o.geometries.map(geometry)}:t in geometryType?{type:t,coordinates:geometryType[t](o)}:null}var geometryType={Point:function(o){return point(o.coordinates)},MultiPoint:function(o){return o.coordinates.map(point)},LineString:function(o){return line(o.arcs)},MultiLineString:function(o){return o.arcs.map(line)},Polygon:function(o){return polygon(o.arcs)},MultiPolygon:function(o){return o.arcs.map(polygon)}};return geometry(o)}function reverse(array,n){var t,j=array.length,i=j-n;while(i<--j)t=array[i],array[i++]=array[j],array[j]=t}function bisect(a,x){var lo=0,hi=a.length;while(lo<hi){var mid=lo+hi>>>1;if(a[mid]<x)lo=mid+1;else hi=mid}return lo}function neighbors(objects){var indexesByArc={},neighbors=objects.map(function(){return[]});function line(arcs,i){arcs.forEach(function(a){if(a<0)a=~a;var o=indexesByArc[a];if(o)o.push(i);else indexesByArc[a]=[i]})}function polygon(arcs,i){arcs.forEach(function(arc){line(arc,i)})}function geometry(o,i){if(o.type==="GeometryCollection")o.geometries.forEach(function(o){geometry(o,i)});else if(o.type in geometryType)geometryType[o.type](o.arcs,i)}var geometryType={LineString:line,MultiLineString:polygon,Polygon:polygon,MultiPolygon:function(arcs,i){arcs.forEach(function(arc){polygon(arc,i)})}};objects.forEach(geometry);for(var i in indexesByArc){for(var indexes=indexesByArc[i],m=indexes.length,j=0;j<m;++j){for(var k=j+1;k<m;++k){var ij=indexes[j],ik=indexes[k],n;if((n=neighbors[ij])[i=bisect(n,ik)]!==ik)n.splice(i,0,ik);if((n=neighbors[ik])[i=bisect(n,ij)]!==ij)n.splice(i,0,ij)}}}return neighbors}function presimplify(topology,triangleArea){var absolute=transformAbsolute(topology.transform),relative=transformRelative(topology.transform),heap=minHeap(compareArea),maxArea=0,triangle;if(!triangleArea)triangleArea=cartesianArea;topology.arcs.forEach(function(arc){var triangles=[];arc.forEach(absolute);for(var i=1,n=arc.length-1;i<n;++i){triangle=arc.slice(i-1,i+2);triangle[1][2]=triangleArea(triangle);triangles.push(triangle);heap.push(triangle)}arc[0][2]=arc[n][2]=Infinity;for(var i=0,n=triangles.length;i<n;++i){triangle=triangles[i];triangle.previous=triangles[i-1];triangle.next=triangles[i+1]}});while(triangle=heap.pop()){var previous=triangle.previous,next=triangle.next;if(triangle[1][2]<maxArea)triangle[1][2]=maxArea;else maxArea=triangle[1][2];if(previous){previous.next=next;previous[2]=triangle[2];update(previous)}if(next){next.previous=previous;next[0]=triangle[0];update(next)}}topology.arcs.forEach(function(arc){arc.forEach(relative)});function update(triangle){heap.remove(triangle);triangle[1][2]=triangleArea(triangle);heap.push(triangle)}return topology}function cartesianArea(triangle){return Math.abs((triangle[0][0]-triangle[2][0])*(triangle[1][1]-triangle[0][1])-(triangle[0][0]-triangle[1][0])*(triangle[2][1]-triangle[0][1]))}function compareArea(a,b){return a[1][2]-b[1][2]}function minHeap(compare){var heap={},array=[];heap.push=function(){for(var i=0,n=arguments.length;i<n;++i){var object=arguments[i];up(object.index=array.push(object)-1)}return array.length};heap.pop=function(){var removed=array[0],object=array.pop();if(array.length){array[object.index=0]=object;down(0)}return removed};heap.remove=function(removed){var i=removed.index,object=array.pop();if(i!==array.length){array[object.index=i]=object;(compare(object,removed)<0?up:down)(i)}return i};function up(i){var object=array[i];while(i>0){var up=(i+1>>1)-1,parent=array[up];if(compare(object,parent)>=0)break;array[parent.index=i]=parent;array[object.index=i=up]=object}}function down(i){var object=array[i];while(true){var right=i+1<<1,left=right-1,down=i,child=array[down];if(left<array.length&&compare(array[left],child)<0)child=array[down=left];if(right<array.length&&compare(array[right],child)<0)child=array[down=right];if(down===i)break;array[child.index=i]=child;array[object.index=i=down]=object}}return heap}function transformAbsolute(transform){if(!transform)return noop;var x0,y0,kx=transform.scale[0],ky=transform.scale[1],dx=transform.translate[0],dy=transform.translate[1];return function(point,i){if(!i)x0=y0=0;point[0]=(x0+=point[0])*kx+dx;point[1]=(y0+=point[1])*ky+dy}}function transformRelative(transform){if(!transform)return noop;var x0,y0,kx=transform.scale[0],ky=transform.scale[1],dx=transform.translate[0],dy=transform.translate[1];return function(point,i){if(!i)x0=y0=0;var x1=(point[0]-dx)/kx|0,y1=(point[1]-dy)/ky|0;point[0]=x1-x0;point[1]=y1-y0;x0=x1;y0=y1}}function noop(){}if(typeof define==="function"&&define.amd)define(topojson);else if(typeof module==="object"&&module.exports)module.exports=topojson;else this.topojson=topojson}()},{}]},{},[1])(1)});
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