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Satellite Projection
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license: gpl-3.0 |
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<!doctype html> | |
<html> | |
<head> | |
<title>Topography</title> | |
<meta charset="utf-8" /> | |
<script src="https://d3js.org/d3.v4.min.js"></script> | |
<script src="http://colorbrewer2.org/export/colorbrewer.js"></script> | |
<script src="https://d3js.org/d3-geo-projection.v2.min.js"></script> | |
</head> | |
<body> | |
</body> | |
<script> | |
var width = 500 | |
var height = 400 | |
var scale = 1100 | |
var svg = d3.select("body") | |
.append("div") | |
.classed("svg-container", true) | |
.append("svg") | |
.attr("preserveAspectRatio", "xMinYMin meet") | |
.attr("viewBox",`0 0 ${width} ${height}`) | |
.classed("svg-content-responsive", true) | |
var g = d3.select("svg").append("g") | |
var PromiseWrapper = (xhr, d) => new | |
Promise(resolve => xhr(d, (p) => resolve(p))) | |
Promise.all([PromiseWrapper(d3.json, "world.geojson")]) | |
.then(resolve => { | |
createMap(resolve[0]) | |
}) | |
function createMap(countries) { | |
// DATA SPECIFIC VARIABLES // | |
// http://bl.ocks.org/emeeks/raw/10173187/ | |
var projection = d3.geoSatellite() | |
.scale(scale) | |
.translate([width/2,height/2 + 100]) | |
.rotate([-40,-25,-50]) | |
.tilt(20) | |
.distance(1.2) | |
.clipAngle(45) | |
var geoPath = d3.geoPath() | |
.projection(projection); | |
// DRAW PATHS | |
g.selectAll("path").data(countries.features) | |
.enter() | |
.append("path") | |
.attr("class", "countries") | |
.attr("d", geoPath) | |
.style("stroke-width",1) | |
.style("stroke","white") | |
var featureData = d3.selectAll("path.countries").data(); | |
console.log(featureData) | |
var realFeatureSize = d3.extent(featureData, d => d3.geoArea(d)) | |
var colorScale = d3.scaleLinear().domain(realFeatureSize).range(["white","#123123"]) | |
d3.selectAll("path.countries") | |
.style("fill", 'lightgrey'); | |
} | |
</script> | |
</html> |
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