Skip to content

Instantly share code, notes, and snippets.

@gabrielflorit

gabrielflorit/Makefile

Last active May 15, 2019 17:50
Show Gist options
  • Save gabrielflorit/225b3802829cbebb0521f45216c34f18 to your computer and use it in GitHub Desktop.
Save gabrielflorit/225b3802829cbebb0521f45216c34f18 to your computer and use it in GitHub Desktop.
Download ZIP
Equidistant map perimeter circles
Raw
README.md

Equidistant map perimeter circles circles

Made with blockup.

Display the source blob
Display the rendered blob
Raw
boundary.topojson
{"type":"Topology","arcs":[[[9769,0],[84,78],[46,-45],[-130,-33]],[[0,7510],[18,70],[153,-72],[147,-17],[46,21],[58,-58],[0,37],[27,10],[34,-81],[-46,-66],[-2,49],[-76,-152],[63,17],[-55,-6],[130,168],[18,-52],[-19,-3],[17,-52],[-15,-9],[11,-14],[-18,-59],[6,-13],[-12,-21],[-22,21],[15,29],[-21,-15],[5,-65],[-27,76],[-10,-30],[1,-33],[41,-20],[20,24],[15,36],[-5,8],[24,-16],[27,26],[-24,99],[47,114],[-39,67],[-19,-17],[27,-38],[-35,25],[-4,37],[36,12],[-42,50],[-35,6],[24,19],[30,-17],[-14,34],[25,7],[-25,56],[-18,-26],[-14,13],[-33,66],[14,19],[826,0],[893,-1],[844,0],[924,0],[925,0],[1026,1],[845,-1],[1,123],[44,-5],[32,-15],[39,-184],[183,-36],[11,-36],[123,40],[68,-4],[73,-28],[-18,-25],[58,-16],[20,-61],[25,42],[47,2],[22,-40],[91,-40],[-2,-21],[68,12],[87,53],[30,-50],[139,7],[56,-39],[93,8],[-314,-145],[-279,-245],[30,-34],[252,89],[24,-23],[-46,-93],[49,30],[68,-41],[147,82],[86,8],[100,50],[126,117],[112,35],[49,-25],[-55,-4],[-62,-60],[-61,-141],[80,67],[-32,-46],[46,31],[60,-9],[51,-35],[52,-87],[81,8],[37,-32],[34,2],[5,39],[21,-31],[96,65],[149,2],[118,31],[-6,-93],[88,1],[10,-22],[104,37],[7,-87],[-35,-26],[29,1],[57,-59],[25,8],[-12,29],[54,-6],[24,-32],[-12,-23],[-133,19],[-60,-15],[-64,39],[-21,-69],[-61,56],[-110,27],[-45,-44],[-132,-5],[-77,-107],[-23,22],[40,68],[-55,-9],[-41,-60],[-16,52],[-129,-219],[-7,-54],[-43,-9],[-37,-73],[-14,-49],[23,-12],[76,99],[51,8],[33,96],[59,39],[-111,-235],[-10,-114],[-47,-81],[3,-80],[-47,-139],[33,-148],[-14,-164],[69,-178],[46,-28],[146,71],[82,148],[24,194],[-74,222],[25,63],[-19,77],[56,92],[3,110],[38,16],[5,52],[59,14],[61,83],[-26,-115],[12,-27],[28,72],[-11,-77],[30,58],[5,108],[104,39],[-46,47],[39,54],[-14,17],[62,8],[62,-43],[56,-6],[27,-44],[163,-72],[26,-78],[-43,2],[42,-101],[-14,-119],[-47,-29],[-10,-61],[-67,-31],[-17,-67],[61,-51],[47,40],[10,54],[20,-5],[-14,16],[112,48],[62,-69],[52,-279],[-24,-115],[-38,-31],[14,48],[-43,-9],[-18,-80],[-46,-31],[-9,-65],[-73,-114],[119,-68],[23,23],[80,-65],[107,42],[62,-8],[103,86],[218,88],[268,165],[68,75],[-51,91],[1,59],[160,36],[139,-11],[47,-33],[135,10],[123,80],[42,3],[-14,104],[38,19],[-58,39],[16,51],[91,54],[209,194],[795,11],[14,72],[36,20],[34,-18],[28,32],[35,-37],[13,63],[37,-14],[-20,41],[106,120],[-8,96],[54,71],[14,89],[175,244],[42,-11],[-2,-54],[34,-25],[140,58],[113,-93],[-6,-437],[88,-35],[-14,-97],[33,-49],[14,21],[29,-10],[47,-110],[-71,-67],[-8,32],[-22,-4],[6,-21],[-47,-21],[15,-20],[-18,-16],[-41,32],[-64,-69],[-30,17],[-4,-47],[-46,5],[5,57],[-42,-9],[-9,-124],[-29,60],[12,20],[-34,15],[5,68],[-44,-32],[-18,-144],[-56,-37],[6,24],[-20,-11],[-10,19],[-17,-38],[-46,-5],[-29,-38],[-21,25],[-55,-34],[-57,-100],[-31,-12],[-60,-141],[9,-59],[42,-17],[-63,-30],[-31,-84],[28,9],[36,-32],[20,-41],[-17,-26],[68,-81],[35,-10],[57,28],[-20,74],[-34,10],[43,-8],[27,-73],[-12,-85],[-4,41],[-78,-12],[-136,-72],[66,43],[8,52],[-22,9],[-53,-70],[-55,-18],[-11,51],[0,-46],[-25,-7],[18,53],[18,18],[-21,-12],[-22,47],[-23,-132],[-242,-38],[-79,-2],[-4,17],[-45,-47],[-121,-47],[-32,-66],[68,48],[58,-13],[27,21],[108,3],[81,57],[-9,-23],[49,-30],[56,25],[-314,-142],[-160,-26],[-24,47],[-4,-32],[-47,-32],[65,-13],[-26,-218],[-174,-262],[-25,0],[19,69],[-60,10],[-87,86],[6,72],[-18,-11],[0,-60],[42,-66],[0,-60],[48,-83],[23,-3],[10,-110],[-38,-124],[-70,-84],[-33,-114],[-66,-113],[-16,55],[20,98],[63,126],[-54,-11],[16,66],[-30,1],[26,24],[-16,16],[12,31],[-24,-40],[-7,45],[-7,-50],[-51,34],[-18,53],[20,10],[-7,28],[57,-14],[-48,54],[-25,-16],[11,45],[24,-2],[-4,37],[-37,-28],[14,59],[34,-11],[4,29],[-20,-23],[-9,46],[23,54],[39,11],[7,60],[-29,-6],[8,-29],[-37,-30],[-6,31],[-7,-48],[-17,30],[3,-43],[-23,-20],[-32,21],[43,-80],[-37,-77],[54,-233],[-27,40],[-8,-19],[-26,36],[-47,7],[-7,35],[-3,-29],[-18,11],[-22,49],[-53,-20],[-3,42],[35,38],[-32,1],[-16,-80],[18,-17],[45,22],[18,-59],[79,-21],[86,-83],[-23,-74],[13,-13],[-18,-1],[-34,10],[-95,108],[88,-116],[55,-18],[-14,-13],[22,-12],[-3,-55],[-31,29],[15,-40],[-35,-13],[48,-34],[-3,-40],[-28,-10],[-51,80],[-68,3],[48,-27],[12,17],[5,-49],[44,-52],[35,1],[4,26],[69,-14],[105,-364],[-103,238],[44,-145],[-29,55],[4,-25],[-64,42],[28,-49],[-48,14],[13,-29],[-53,31],[33,-32],[-63,-27],[-32,44],[6,42],[-13,-42],[14,-64],[143,15],[7,-109],[19,98],[22,6],[31,-90],[-99,-117],[-76,14],[-23,44],[26,15],[-37,-15],[12,-39],[-101,41],[127,-76],[-30,-66],[-46,-33],[-42,30],[2,-17],[49,-27],[68,49],[15,-32],[25,10],[-54,-103],[-18,33],[-16,-23],[34,-20],[111,130],[-114,-150],[-32,33],[-71,-7],[-129,-80],[-62,-81],[-32,-102],[-94,19],[-98,-51],[-62,-82],[-23,-99],[-40,-53],[-45,4],[-4,-36],[-34,-32],[-45,-8],[9,-31],[-26,-25],[-108,-34],[2,-57],[-40,-20],[-26,16],[19,-28],[-53,-53],[14,-16],[-24,-33],[-27,-7],[0,-34],[-31,-16],[16,-30],[-29,-24],[19,-10],[-26,-98],[-46,-74],[20,-6],[-10,-145],[65,-301],[145,-349],[-18,-39],[9,-77],[122,-413],[-22,-326],[-7,-34],[-9,25],[-24,-42],[-15,-104],[44,64],[-42,-106],[-48,-64],[-22,-14],[39,44],[7,52],[-140,-29],[-48,181],[-74,66],[-17,-13],[-41,167],[-43,54],[-11,-21],[-17,63],[20,-5],[7,91],[-25,-11],[6,-40],[-27,-22],[-109,260],[21,-5],[57,114],[-17,15],[1,-34],[-19,9],[0,37],[-31,20],[-6,-29],[30,-39],[-33,-64],[-27,79],[-2,113],[17,-51],[27,136],[-5,134],[-27,77],[-56,-5],[-6,39],[-73,84],[-3,48],[-61,79],[-73,57],[-58,2],[-25,-30],[4,-36],[-37,7],[-86,-62],[-4,20],[-49,-22],[25,-30],[73,45],[-81,-56],[-70,23],[-14,58],[17,-48],[6,45],[-62,71],[-162,98],[-103,9],[-291,-54],[62,17],[-34,42],[-3,73],[-20,15],[-29,-116],[-179,23],[-84,-28],[-10,22],[-29,-63],[-90,-54],[45,-45],[40,68],[25,-7],[-13,-21],[14,-25],[35,19],[-24,-27],[19,-3],[-33,-12],[25,-26],[-26,10],[-11,-42],[-20,22],[8,-34],[-45,-1],[40,-73],[73,-13],[18,-46],[24,-7],[-24,-8],[16,-6],[-23,-46],[-25,29],[-38,-48],[28,85],[-22,-24],[-56,53],[-47,9],[-86,-74],[-19,58],[-22,-11],[-10,37],[-96,-93],[-21,40],[-78,27],[15,33],[26,-38],[-2,28],[-24,31],[-22,-14],[-5,38],[-24,-13],[-21,51],[-22,1],[6,32],[-59,-7],[12,37],[-84,-24],[21,-45],[20,1],[-60,-26],[-204,75],[-67,0],[-142,-35],[-151,-95],[58,58],[-63,-4],[20,52],[-14,28],[-31,-39],[-17,13],[-12,-46],[25,-19],[4,-60],[-61,-38],[-1,-24],[81,76],[20,-7],[-151,-148],[-190,-119],[-114,-104],[-112,-181],[-38,-198],[48,-285],[-26,148],[-20,4],[15,8],[-22,99],[9,147],[63,178],[151,160],[-56,-34],[-23,32],[-7,-59],[-31,-32],[-23,20],[-40,-31],[43,6],[-37,-90],[-75,14],[59,-55],[-34,-116],[-29,-17],[7,28],[-31,-36],[49,4],[-5,-209],[38,-107],[-3,-53],[32,-14],[1,-29],[-63,-41],[-52,57],[-124,11],[-58,52],[-50,6],[-31,42],[-63,9],[-42,142],[-41,57],[-15,173],[-75,63],[-20,69],[-81,93],[-88,263],[-88,114],[-44,20],[0,33],[-12,-15],[-25,57],[-159,11],[-47,28],[-15,-36],[-66,-9],[-47,-124],[4,-39],[-29,-15],[-28,-62],[-71,18],[-139,89],[-107,101],[-95,308],[-106,79],[-128,162],[-57,33],[-56,95],[-400,6],[0,-144],[-652,0],[-851,370],[21,71],[-548,-59],[-78,243],[-151,145],[-63,-3],[-25,91],[-65,-9],[-74,32],[-98,99],[-207,11],[-38,38],[-2,183],[-48,21],[-6,71],[-91,78],[-50,103],[-88,97],[-20,88],[37,33],[-11,79],[-55,7],[-68,77],[-26,108],[9,87],[21,-6],[2,-59],[76,-47],[-88,161],[36,35],[-50,12],[12,-73],[-21,-20],[-74,63],[-38,-7],[10,87],[-170,207],[-29,291],[-116,136],[-11,56],[62,156],[17,163],[-44,109],[12,64],[-35,42],[-10,163],[-34,68],[93,355],[46,543],[-19,180],[39,-23],[70,35],[-122,1],[3,116],[24,-82],[1,83],[29,23],[-59,10],[-11,52],[15,-14],[48,28],[-59,30],[-13,-37],[-56,258],[-47,49],[-23,89]]],"transform":{"scale":[0.004393337667274939,0.003142808130699088],"translate":[-124.731746,24.568745]},"objects":{"boundary":{"type":"GeometryCollection","geometries":[{"type":"MultiLineString","arcs":[[0],[1]],"properties":{"TYPE":0}}]}}}
Raw
dist.css
.buttons{margin:0 auto;text-align:center}.map svg{display:block;margin:0 auto}.map svg circle{fill:#8f092a;fill-opacity:.25;stroke:#8f092a}
Raw
dist.js
var margin={top:10,right:10,bottom:10,left:10};d3.json("./boundary.topojson",function(t){var e=topojson.feature(t,t.objects.boundary),n=(d3.geoBounds(e),d3.geoCentroid(e),d3.geoAlbers()),r=d3.geoPath().projection(n),a=r.bounds(e),o=(a[1][0]-a[0][0])/(a[1][1]-a[0][1]),i=460,c=i*o,u=c-margin.left-margin.right,l=i-margin.top-margin.bottom,d=d3.select(".map svg").attrs({width:c,height:i}).append("g").attr("transform","translate("+margin.left+", "+margin.top+")");n.fitSize([u,l],e);var s=_(e.features).map("geometry").flatten().map("coordinates").flatten().sortBy("length").map(function(t){return turf.lineString(t)}).value(),f=_(s).map(function(t){return turf.lineDistance(t)}).sum(),m=1e3,g=m,p=_(s).map(function(t){var e=turf.lineDistance(t),n=Math.ceil(e*m/f),r=Math.min(g,n);g-=r;var a=e/r,o=d3.range(r).map(function(e){return turf.along(t,e*a)});return o}).flatten().map(function(t){return n(t.geometry.coordinates)}).value(),v=function(){var t=d.selectAll("circle").data(p);t.enter().append("circle").attrs({cx:u/2,cy:l/2,r:0}).transition("enter").duration(1e3).delay(function(t,e){return 10*e}).attrs({cx:function(t){return t[0]},cy:function(t){return t[1]},r:1})},y=function(){var t=d.selectAll("circle").data(p);t.transition("exit").duration(250).delay(function(t,e){return 2*e}).attrs({cx:u/2,cy:l/2,r:0}).remove()};v(),document.querySelector("button.enter").addEventListener("click",v),document.querySelector("button.exit").addEventListener("click",y)});
//# sourceMappingURL=data:application/json;charset=utf8;base64,{"version":3,"sources":["script.js"],"names":["const","margin","top","right","bottom","left","d3","json","feature","topojson","objects","boundary","projection","geoBounds","geoCentroid","geoAlbers","path","geoPath","b","bounds","aspect","outerHeight","outerWidth","width","height","g","select","attrs","append","attr","fitSize","lineStrings","_","features","map","flatten","sortBy","d","turf","lineString","value","totalLength","lineDistance","sum","pointsCount","pointsRemaining","points","line","lineLength","upperCount","Math","ceil","linePointsCount","min","step","linePoints","range","along","geometry","coordinates","enter","circles","selectAll","data","cx","cy","r","transition","duration","delay","i","exit","remove","document","querySelector","addEventListener"],"mappings":"AACAA,GAAMC,SAAWC,IAAO,GAAEC,MAAS,GAAEC,OAAU,GAAEC,KAAQ,GAGzDC,IAAGC,KAAK,sBAAuB,SAAAA,GAE9BP,GAAMQ,GAAUC,SAASD,QAAQD,EAAMA,EAAKG,QAAQC,UAW9CC,GARWN,GAACO,UAAUL,GACTF,GAACQ,YAAYN,GAOXF,GAACS,aAGhBC,EAASV,GAACW,UAAUL,WAAWA,GAG9BM,EAAGF,EAAKG,OAAOX,GAGhBY,GAAYF,EAAE,GAAG,GAAKA,EAAE,GAAG,KAAOA,EAAE,GAAG,GAAKA,EAAE,GAAG,IAEjDG,EAAc,IACdC,EAAaD,EAAcD,EAE3BG,EAAQD,EAAarB,OAAOI,KAAOJ,OAAOE,MAC1CqB,EAASH,EAAcpB,OAAOC,IAAMD,OAAOG,OAG1CqB,EAAKnB,GAACoB,OAAO,YACjBC,OAAQJ,MAAOD,EAAYE,OAAQH,IACpCO,OAAO,KACNC,KAAK,YAAa,aAAW5B,OAAS,KAAA,KAAIA,OAAG,IAAA,IAGhDW,GAAWkB,SAASP,EAAOC,GAAShB,EAGpCR,IAAM+B,GAAgBC,EAAAxB,EAAQyB,UAC5BC,IAAI,YACJC,UACAD,IAAI,eACJC,UACAC,OAAO,UACPF,IAAI,SAAAG,GAAA,MAAAC,MAAAC,WAAEF,KACNG,QAGIC,EAAgBT,EAAAD,GACpBG,IAAI,SAAAG,GAAA,MAAAC,MAAAI,aAAKL,KACTM,MAGIC,EAAc,IAChBC,EAAkBD,EAEhBE,EAAWd,EAAAD,GACfG,IAAI,SAAAa,GAKJ/C,GAAMgD,GAAaV,KAAKI,aAAaK,GAG/BE,EAAaC,KAAKC,KAAKH,EAAaJ,EAAcH,GAGlDW,EAAkBF,KAAKG,IAAIR,EAAiBI,EAGlDJ,IAAmBO,CAInBpD,IAAMsD,GAAON,EAAaI,EAEpBG,EAAejD,GAACkD,MAAMJ,GAC1BlB,IAAI,SAAAG,GAAA,MAAAC,MAAAmB,MAAEV,EAAGV,EAAIiB,IAEf,OAAOC,KAGPpB,UACAD,IAAI,SAAAG,GAAA,MAAAzB,GAAEyB,EAAAqB,SAAGC,eACTnB,QAGIoB,EAAQ,WAGb5D,GAAM6D,GAAYpC,EAAAqC,UAAU,UACzBC,KAAKjB,EAGRe,GAAQD,QAAQhC,OAAO,UACpBD,OACAqC,GAAIzC,EAAM,EACV0C,GAAIzC,EAAO,EACX0C,EAAG,IAEJC,WAAW,SACVC,SAAS,KACTC,MAAM,SAAAhC,EAAAiC,GAAA,MAAK,IAAJA,IACP3C,OACAqC,GAAI,SAAA3B,GAAA,MAAAA,GAAA,IACJ4B,GAAI,SAAA5B,GAAA,MAAAA,GAAA,IACJ6B,EAAG,KAMDK,EAAO,WAGZvE,GAAM6D,GAAYpC,EAAAqC,UAAU,UACzBC,KAAKjB,EAGRe,GACEM,WAAW,QACVC,SAAS,KACTC,MAAM,SAAAhC,EAAAiC,GAAA,MAAK,GAAJA,IACP3C,OACAqC,GAAIzC,EAAM,EACV0C,GAAIzC,EAAO,EACX0C,EAAG,IAEJM,SAKHZ,KAGAa,SAASC,cAAc,gBAAgBC,iBAAiB,QAASf,GACjEa,SAASC,cAAc,eAAeC,iBAAiB,QAASJ","file":"script.js","sourcesContent":["// Setup chart dimensions.\nconst margin = { top: 10, right: 10, bottom: 10, left: 10 }\n\n// Get GeoJSON.\nd3.json('./boundary.topojson', json => {\n\n\tconst feature = topojson.feature(json, json.objects.boundary)\n\n\t// Get feature's bounds and centroid.\n\tconst bounds = d3.geoBounds(feature)\n\tconst centroid = d3.geoCentroid(feature)\n\n\t// const projection = d3.geoConicConformal()\n\t// \t.parallels([bounds[0][1], bounds[1][1]])\n\t// \t.rotate([-centroid[0], 0])\n\t// \t.center([0, -centroid[1]])\n\n\tconst projection = d3.geoAlbers()\n\n\t// Get the path.\n\tconst path = d3.geoPath().projection(projection)\n\n\t// Get the path's bounds (i.e., in pixels).\n\tconst b = path.bounds(feature)\n\n\t// Get aspect ratio.\n\tconst aspect = (b[1][0] - b[0][0]) / (b[1][1] - b[0][1])\n\n\tconst outerHeight = 460\n\tconst outerWidth = outerHeight * aspect\n\n\tconst width = outerWidth - margin.left - margin.right\n\tconst height = outerHeight - margin.top - margin.bottom\n\n\t// Prepare svg.\n\tconst g = d3.select('.map svg')\n\t\t\t.attrs({ width: outerWidth, height: outerHeight })\n\t\t.append('g')\n\t\t\t.attr('transform', `translate(${margin.left}, ${margin.top})`)\n\n\t// Fit the feature to the container's width.\n\tprojection.fitSize([width, height], feature)\n\n\t// Get the individual line strings.\n\tconst lineStrings = _(feature.features)\n\t\t.map('geometry')\n\t\t.flatten()\n\t\t.map('coordinates')\n\t\t.flatten()\n\t\t.sortBy('length')\n\t\t.map(d => turf.lineString(d))\n\t\t.value()\n\n\t// Calculate the overall line string length.\n\tconst totalLength = _(lineStrings)\n\t\t.map(d => turf.lineDistance(d))\n\t\t.sum()\n\n\t// Desired number of total points.\n\tconst pointsCount = 1000\n\tlet pointsRemaining = pointsCount\n\n\tconst points = _(lineStrings)\n\t\t.map(line => {\n\n\t\t\t// How many points will this line get?\n\n\t\t\t// First, calculate this line's length.\n\t\t\tconst lineLength = turf.lineDistance(line)\n\n\t\t\t// Next, get this line's points proportion, rounded up.\n\t\t\tconst upperCount = Math.ceil(lineLength * pointsCount / totalLength)\n\n\t\t\t// Don't get more points that are available.\n\t\t\tconst linePointsCount = Math.min(pointsRemaining, upperCount)\n\n\t\t\t// Make sure to update points remaining.\n\t\t\tpointsRemaining -= linePointsCount\n\n\t\t\t// Now that we know how many points this line will get,\n\t\t\t// calculate the distance between points - the step:\n\t\t\tconst step = lineLength / linePointsCount\n\n\t\t\tconst linePoints = d3.range(linePointsCount)\n\t\t\t\t.map(d => turf.along(line, d * step))\n\n\t\t\treturn linePoints\n\n\t\t})\n\t\t.flatten()\n\t\t.map(d => projection(d.geometry.coordinates))\n\t\t.value()\n\n\t// This function adds the circles.\n\tconst enter = () => {\n\n\t\t// JOIN new data with old elements.\n\t\tconst circles = g.selectAll('circle')\n\t\t\t\t.data(points)\n\n\t\t// ENTER new elements present in new data.\n\t\tcircles.enter().append('circle')\n\t\t\t\t.attrs({\n\t\t\t\t\tcx: width/2,\n\t\t\t\t\tcy: height/2,\n\t\t\t\t\tr: 0,\n\t\t\t\t})\n\t\t\t.transition('enter')\n\t\t\t\t.duration(1000)\n\t\t\t\t.delay((d, i) => i * 10)\n\t\t\t\t.attrs({\n\t\t\t\t\tcx: d => d[0],\n\t\t\t\t\tcy: d => d[1],\n\t\t\t\t\tr: 1,\n\t\t\t\t})\n\n\t}\n\n\t// This function removes the circles.\n\tconst exit = () => {\n\n\t\t// JOIN new data with old elements.\n\t\tconst circles = g.selectAll('circle')\n\t\t\t\t.data(points)\n\n\t\t// UPDATE old elements present in new data.\n\t\tcircles\n\t\t\t.transition('exit')\n\t\t\t\t.duration(250)\n\t\t\t\t.delay((d, i) => i * 2)\n\t\t\t\t.attrs({\n\t\t\t\t\tcx: width/2,\n\t\t\t\t\tcy: height/2,\n\t\t\t\t\tr: 0,\n\t\t\t\t})\n\t\t\t.remove()\n\n\t}\n\n\t// Fire the enter function on page load.\n\tenter()\n\n\t// Listen to button clicks.\n\tdocument.querySelector('button.enter').addEventListener('click', enter)\n\tdocument.querySelector('button.exit').addEventListener('click', exit)\n\n})\n"]}
Raw
index.html
<!DOCTYPE html>
<title>Equidistant outline circles</title>
<link href='dist.css' rel='stylesheet' />
<body>
<div class='map'>
<svg></svg>
</div>
<div class='buttons'>
<button class='enter'>Enter</button>
<button class='exit'>Exit</button>
</div>
<script src='https://d3js.org/d3.v4.min.js'></script>
<script src='https://d3js.org/d3-selection-multi.v1.min.js'></script>
<script src='https://d3js.org/topojson.v2.min.js'></script>
<script src='https://npmcdn.com/@turf/turf@3.10.2/turf.min.js'></script>
<script src='https://cdn.jsdelivr.net/lodash/4.17.4/lodash.min.js'></script>
<script src='dist.js'></script>
</body>
Raw
Makefile
all:
rm boundary.topojson;
mapshaper -i ~/Downloads/cb_2015_us_nation_5m/cb_2015_us_nation_5m.shp name=boundary -clip bbox=-126,23,-65,50 -filter-slivers min-area=700000000 -lines -simplify dp 5% -o format=topojson boundary.topojson;
Raw
script.js
// Setup chart dimensions.
const margin = { top: 10, right: 10, bottom: 10, left: 10 }
// Get GeoJSON.
d3.json('./boundary.topojson', json => {
const feature = topojson.feature(json, json.objects.boundary)
// Get feature's bounds and centroid.
const bounds = d3.geoBounds(feature)
const centroid = d3.geoCentroid(feature)
// const projection = d3.geoConicConformal()
// .parallels([bounds[0][1], bounds[1][1]])
// .rotate([-centroid[0], 0])
// .center([0, -centroid[1]])
const projection = d3.geoAlbers()
// Get the path.
const path = d3.geoPath().projection(projection)
// Get the path's bounds (i.e., in pixels).
const b = path.bounds(feature)
// Get aspect ratio.
const aspect = (b[1][0] - b[0][0]) / (b[1][1] - b[0][1])
const outerHeight = 460
const outerWidth = outerHeight * aspect
const width = outerWidth - margin.left - margin.right
const height = outerHeight - margin.top - margin.bottom
// Prepare svg.
const g = d3.select('.map svg')
.attrs({ width: outerWidth, height: outerHeight })
.append('g')
.attr('transform', `translate(${margin.left}, ${margin.top})`)
// Fit the feature to the container's width.
projection.fitSize([width, height], feature)
// Get the individual line strings.
const lineStrings = _(feature.features)
.map('geometry')
.flatten()
.map('coordinates')
.flatten()
.sortBy('length')
.map(d => turf.lineString(d))
.value()
// Calculate the overall line string length.
const totalLength = _(lineStrings)
.map(d => turf.lineDistance(d))
.sum()
// Desired number of total points.
const pointsCount = 1000
let pointsRemaining = pointsCount
const points = _(lineStrings)
.map(line => {
// How many points will this line get?
// First, calculate this line's length.
const lineLength = turf.lineDistance(line)
// Next, get this line's points proportion, rounded up.
const upperCount = Math.ceil(lineLength * pointsCount / totalLength)
// Don't get more points that are available.
const linePointsCount = Math.min(pointsRemaining, upperCount)
// Make sure to update points remaining.
pointsRemaining -= linePointsCount
// Now that we know how many points this line will get,
// calculate the distance between points - the step:
const step = lineLength / linePointsCount
const linePoints = d3.range(linePointsCount)
.map(d => turf.along(line, d * step))
return linePoints
})
.flatten()
.map(d => projection(d.geometry.coordinates))
.value()
// This function adds the circles.
const enter = () => {
// JOIN new data with old elements.
const circles = g.selectAll('circle')
.data(points)
// ENTER new elements present in new data.
circles.enter().append('circle')
.attrs({
cx: width/2,
cy: height/2,
r: 0,
})
.transition('enter')
.duration(1000)
.delay((d, i) => i * 10)
.attrs({
cx: d => d[0],
cy: d => d[1],
r: 1,
})
}
// This function removes the circles.
const exit = () => {
// JOIN new data with old elements.
const circles = g.selectAll('circle')
.data(points)
// UPDATE old elements present in new data.
circles
.transition('exit')
.duration(250)
.delay((d, i) => i * 2)
.attrs({
cx: width/2,
cy: height/2,
r: 0,
})
.remove()
}
// Fire the enter function on page load.
enter()
// Listen to button clicks.
document.querySelector('button.enter').addEventListener('click', enter)
document.querySelector('button.exit').addEventListener('click', exit)
})
Raw
style.styl
$red = #8f092a
.buttons
margin 0 auto
text-align center
.map
svg
display block
margin 0 auto
circle
fill $red
fill-opacity 0.25
stroke $red
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment