A simple D3v4 map using one of the gajillion projections available in the latest release of d3.geo.projection.
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July 6, 2016 05:49
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Wiechel projection, D3.js v4
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height: 960 | |
border: no |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.graticule { | |
fill: none; | |
stroke: #777; | |
stroke-width: 0.5px; | |
stroke-opacity: 0.5; | |
} | |
.land { | |
fill: #BCA093; | |
stroke: #777; | |
stroke-width: 0.5px; | |
stroke-opacity: 0.5; | |
} | |
.landShadow { | |
fill: #B6C8E1; | |
} | |
.boundary { | |
fill: none; | |
stroke: #FDFDFD; | |
stroke-width: 0.5px; | |
} | |
</style> | |
<svg width="960" height="960"></svg> | |
<script src="//d3js.org/d3.v4.min.js"></script> | |
<script src="//d3js.org/topojson.v1.min.js"></script> | |
<script src="//d3js.org/d3-geo-projection.v1.min.js"></script> | |
<script> | |
var svg = d3.select("svg"), | |
width = +svg.attr("width"), | |
height = +svg.attr("height"), | |
g = svg.append("g").attr("transform", "rotate(90 480,480)"); | |
var filter = svg.append("defs") | |
.append("filter") | |
.attr("id", "drop-shadow") | |
.attr("height", "130%"); | |
filter.append("feGaussianBlur") | |
.attr("in", "SourceAlpha") | |
.attr("stdDeviation", "4") | |
.attr("result", "blur"); | |
var projection = d3.geoWiechel() | |
.scale(214) | |
.translate([width / 2, height / 2]) | |
.precision(0.1) | |
var path = d3.geoPath() | |
.projection(projection); | |
var graticule = d3.geoGraticule(); | |
g.append("path") | |
.datum({type: "Sphere"}) | |
.attr("class", "sphere") | |
.attr("d", path) | |
.attr("fill", "#1E2C4F") | |
.attr("stroke", "black"); | |
g.append("path") | |
.datum(graticule) | |
.attr("class", "graticule") | |
.attr("d", path); | |
d3.json("world-50m.json", function(error, world) { | |
if (error) throw error; | |
g.insert("path", ".landShadow") | |
.datum(topojson.feature(world, world.objects.land)) | |
.attr("class", "landShadow") | |
.attr("d", path) | |
.style("fill", "#1E2C4F") | |
.style("filter", "url(#drop-shadow)"); | |
g.insert("path", ".land") | |
.datum(topojson.feature(world, world.objects.land)) | |
.attr("class", "land") | |
.attr("d", path); | |
g.insert("path", ".boundaries") | |
.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; })) | |
.attr("class", "boundary") | |
.attr("d", path); | |
}); | |
</script> |
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