Created
November 13, 2015 04:02
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"Satellite" d3 projection focused on California
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.graticule { | |
fill: none; | |
stroke: #777; | |
} | |
.boundary { | |
fill: #ccc; | |
fill-opacity: .8; | |
stroke: #000; | |
} | |
</style> | |
<body> | |
<script src="//d3js.org/d3.v3.min.js"></script> | |
<script src="//d3js.org/d3.geo.projection.v0.min.js"></script> | |
<script> | |
var width = 960, | |
height = 500; | |
var projection = d3.geo.satellite() | |
.distance(1.1) | |
.scale(4200) | |
.rotate([115, -30.5, -20]) | |
.center([0, 85]) | |
.tilt(10) | |
.clipAngle(Math.acos(1 / 1.1) * 180 / Math.PI - 1e-6) | |
.precision(.1); | |
var graticule = d3.geo.graticule() | |
.extent([[-160, 27], [-47 + 1e-6, 57 + 1e-6]]) | |
.step([3, 3]); | |
var path = d3.geo.path() | |
.projection(projection); | |
var svg = d3.select("body").append("svg") | |
.attr("width", width) | |
.attr("height", height); | |
svg.append("path") | |
.datum(graticule) | |
.attr("class", "graticule") | |
.attr("d", path); | |
d3.json("california_50m.geojson", function(error, json) { | |
if (error) throw error; | |
svg.append("g").selectAll("path") | |
.data(json.features) | |
.enter() | |
.append("path") | |
.attr("class", "boundary") | |
.attr("d", path); | |
}); | |
d3.select(self.frameElement).style("height", height + "px"); | |
</script> |
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