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Last active July 30, 2018 16:44
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Bears Ears changes: Obama to Trump
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README.md

Bears Ears changes: Obama to Trump

This map shows Obama's Bears Ears National Monument outlined in black, with Trump's much smaller replacement overlaid in blue.

A full description of how I created this is available on my blog.

Short description: Files were downloaded from blm.gov, converted to GeoJSON with ogr2ogr, edited with QGIS, simplified with mapshaper.org, and displayed with Leaflet.

ogr2ogr -skipfailures -f "GeoJSON" -t_srs WGS84 bears_ears_obmama.json NLCS_NM_NCA_historic.gdb
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bears_ears_obama_cut_small.json
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bears_ears_trump_cut_small.json
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]}
Raw
index.html
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Obama's Bears Ears vs. Trump's Replacement.">
<title>Obama's Bears Ears vs. Trump's Replacement</title>
<script src="https://code.jquery.com/jquery-2.2.4.min.js"
integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44="
crossorigin="anonymous"></script>
<!-- Load Leaflet from CDN -->
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.2.0/dist/leaflet.css"
integrity="sha512-M2wvCLH6DSRazYeZRIm1JnYyh22purTM+FDB5CsyxtQJYeKq83arPe5wgbNmcFXGqiSH2XR8dT/fJISVA1r/zQ=="
crossorigin=""/>
<script src="https://unpkg.com/leaflet@1.2.0/dist/leaflet.js"
integrity="sha512-lInM/apFSqyy1o6s89K4iQUKg6ppXEgsVxT35HbzUupEVRh2Eu9Wdl4tHj7dZO0s1uvplcYGmt3498TtHq+log=="
crossorigin=""></script>
<!-- Load Esri Leaflet from CDN -->
<script src="https://unpkg.com/esri-leaflet@2.1.1/dist/esri-leaflet.js"
integrity="sha512-ECQqaYZke9cSdqlFG08zSkudgrdF6I1d8ViSa7I3VIszJyVqw4ng1G8sehEXlumdMnFYfzY0tMgdQa4WCs9IUw=="
crossorigin=""></script>
<!-- load the latest release from the cdn automatically -->
<script src="https://unpkg.com/esri-leaflet-vector"></script>
<!-- Map funcitons -->
<script src="map_functions.js"></script>
<script>
var key_field = 'ZCTA5CE10'
//alert('key_field: '+key_field)
var display_property = 'RebatesTtl'
var max_value = 0;
var min_value = 0;
var hue_blue = ['#d1e5f0', '#92c5de', '#4393c3', '#2166ac']
//var hue_red = ['#fddbc7', '#f4a582', '#d6604d', '#b2182b']
//var hue_red = ['#b2182b', '#d6604d', '#f4a582', '#fddbc7']
//var map_hues = ['#b2182b', '#d6604d', '#f4a582', '#fddbc7', '#d1e5f0', '#92c5de', '#4393c3', '#2166ac']
var map_hues = hue_blue
var nuteral_color = '#f7f7f7'
var positive_colors = hue_blue
//var negative_colors = hue_red
</script>
<link rel="stylesheet" id="map-style" href="map_style.css" type="text/css" media="all" />
</head>
<body>
<div id="layout">
<!-- Menu toggle -->
<a href="#menu" id="menuLink" class="menu-link">
<!-- Hamburger icon -->
<span></span>
</a>
<div id="main">
<div class="header">
<h1>Obama's Bears Ears</h1>
</div>
<div class="content">
<div id="mapid_1"></div>
</div> <!-- /content -->
</div> <!-- /main -->
<script>
//alert(max_value);
/*
1 44 104 208 2957
-1376 -268 -153 -70 -1
*/
function returnBreakdowns(){
return [0, mapRound(0.25*max_value), mapRound(0.5*max_value), mapRound(0.75*max_value)]
//return [mapRound(0.75*max_value), mapRound(0.5*max_value), mapRound(0.25*max_value), 0,
// mapRound(0.25*min_value), mapRound(0.5*min_value), mapRound(0.75*min_value), mapRound(min_value)]
//return [208, 104, 44, 0, -70, -153, -268, -1376]
}
//var zipcode_map = L.map('mapid_1').setView([40.0434, -75.7298], 10);
// 40.233845, and the longitude is -111.658531
// -110.029070528837423, 37.57
var zipcode_map = L.map('mapid_1').setView([37.77, -110.02], 9);
var layer = L.esri.Vector.basemap('ModernAntique').addTo(zipcode_map);
// control that shows state info on hover
var info = L.control();
info.onAdd = function (map) {
this._div = L.DomUtil.create('div', 'info');
this.update();
return this._div;
};
info.update = function (properties) {
this._div.innerHTML = '<h4>Electric Cars:</h4>' + (properties ?
'<b>' + properties['Zip'] + ' has ' + properties[display_property] + ' electric cars</b><br />'
: 'Hover over a zipcode'); };
//info.addTo(zipcode_map);
var geojson;
zipcode_map.attributionControl.addAttribution(' | map by Chris A. Williams for Enact Development');
var legend = L.control({position: 'bottomright'});
legend.onAdd = function (map) {
if (min_value > 0) {
min_value = 0;
}
display_grades = [0, mapRound(0.25*max_value), mapRound(0.5*max_value), mapRound(0.75*max_value), mapRound(max_value)]
display_grades.reverse();
if (min_value < 0) {
display_grades = returnBreakdowns()
//alert(display_grades)
var div = L.DomUtil.create('div', 'info legend')
var grades = display_grades
var labels = []
var from, to;
for (var i = 1; i < grades.length; i++) {
to = Number(grades[i]);
from = Number(grades[i - 1]);
if ( from > 0 )
{
x = from
from = to
to = x
}
labels.push(
'<i style="background:' + getColor(to) + '"></i> ' +
//from.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",") + ((i + 1) < grades.length ? '&ndash;' + to.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",") : ' <!--or less-->'));
from.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",") + '&ndash;' + to.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",")
);
if ( from == 0 && to > 0) {
labels.push(
'<i style="background:' + getColor(0) + '"></i> ' + from.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",")
);
}
}
}
else {
var div = L.DomUtil.create('div', 'info legend'),
//grades = [0, mapRound(0.05*max_value), mapRound(0.15*max_value), mapRound(0.30*max_value), mapRound(0.45*max_value), mapRound(0.60*max_value), mapRound(0.75*max_value), mapRound(0.90*max_value)],
grades = display_grades,
labels = [],
from, to;
for (var i = 0; i < grades.length; i++) {
from = grades[i];
to = grades[i + 1];
if ( from == 0 ) {
labels.push(
'<i style="background:' + getColor(from) + '"></i> ' + from.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",")
);
}
labels.push(
'<i style="background:' + getColor(from) + '"></i> ' +
from.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",") + (to ? '&ndash;' + to.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",") : '+'));
}
}
div.innerHTML = labels.join('<br>');
return div;
};
</script>
<script>
$(document).ready(function() {
$.getJSON( "bears_ears_obama_cut_small.json", function() {
//console.log( "success" );
})
.done(function( geojson_data ) {
//console.log( "second success" );
//console.log(geojson_data)
geojson = L.geoJson(geojson_data, {
style: {
weight: 4,
opacity: 1,
color: 'black',
dashArray: '3',
fillColor: '#000000'
},
onEachFeature: onEachFeature
}).addTo(zipcode_map);
//legend.addTo(zipcode_map);
})
.fail(function() {
console.log( "error" );
})
.always(function() {
//console.log( "getJSON().always()" );
});
$.getJSON( "bears_ears_trump_cut_small.json", function() {
//console.log( "success" );
})
.done(function( trump_data ) {
//console.log( "second success" );
//console.log(geojson_data)
geojson = L.geoJson(trump_data, {
style: style,
onEachFeature: onEachFeature
}).addTo(zipcode_map);
//legend.addTo(zipcode_map);
})
.fail(function() {
console.log( "error" );
})
.always(function() {
//console.log( "getJSON().always()" );
});
} );
</script>
</div>
</body>
</html>
Raw
map_functions.js
function mapRound(x){
return Number(Math.round(Number(x) * 100) / 100).toFixed(2)
}
function getColor(d) {
d = Number(d)
if (min_value > 0) {
min_value = 0;
}
breakdowns = returnBreakdowns()
if ( d == 0 ) {
return nuteral_color
}
for (i = 0; i < breakdowns.length; i++) {
if (d < 0 && d >= breakdowns[i]) {
//console.log('will be returning: '+map_hues[i]+' for: '+d+'. max_value: '+max_value+', min_value: '+min_value)
return map_hues[i]
} else if (d > breakdowns[i]) {
//console.log('will be returning: '+map_hues[i]+' for: '+d+'. max_value: '+max_value+', min_value: '+min_value)
return map_hues[i]
}
}
return map_hues[map_hues.length - 1]
}
function style(feature) {
return {
weight: 2,
opacity: 1,
color: 'white',
dashArray: '3',
fillOpacity: 0.7,
fillColor: getColor(feature.properties[display_property])
};
}
function highlightFeature(e) {
var layer = e.target;
layer.setStyle({
weight: 5,
color: '#666',
dashArray: '',
fillOpacity: 0.7
});
if (!L.Browser.ie && !L.Browser.opera && !L.Browser.edge) {
layer.bringToFront();
}
info.update(layer.feature.properties);
}
function resetHighlight(e) {
geojson.resetStyle(e.target);
info.update();
}
/*
function zoomToFeature(e) {
zipcode_map.fitBounds(e.target.getBounds());
}
*/
function onEachFeature(feature, layer) {
layer.on({
mouseover: highlightFeature,
mouseout: resetHighlight,
//click: zoomToFeature
});
}
Raw
map_style.css
#mapid_1 {
width: 800px;
height:800px;
}
#mapid_2 {
width: 800px;
height:800px;
}
.info {
padding: 6px 8px;
font: 14px/16px Arial, Helvetica, sans-serif;
background: white;
background: rgba(255,255,255,0.8);
box-shadow: 0 0 15px rgba(0,0,0,0.2);
border-radius: 5px;
}
.info h4 {
margin: 0 0 5px;
color: #777;
}
.legend {
text-align: left;
line-height: 18px;
color: #555;
}
.legend i {
width: 18px;
height: 18px;
float: left;
margin-right: 8px;
opacity: 0.7;
}
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