A Swiss cantons TopoJSON example, via interactivethings.
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Swiss Cantons
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license: gpl-3.0 |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.canton { | |
fill: #bbb; | |
} | |
.canton-boundary { | |
fill: none; | |
stroke: #fff; | |
stroke-linejoin: round; | |
} | |
text { | |
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; | |
font-size: 10px; | |
text-anchor: middle; | |
} | |
</style> | |
<body> | |
<script src="//d3js.org/d3.v3.min.js"></script> | |
<script src="//d3js.org/topojson.v1.min.js"></script> | |
<script> | |
var width = 960, | |
height = 600; | |
var projection = d3.geo.albers() | |
.rotate([0, 0]) | |
.center([8.3, 46.8]) | |
.scale(16000) | |
.translate([width / 2, height / 2]) | |
.precision(.1); | |
var path = d3.geo.path() | |
.projection(projection); | |
var svg = d3.select("body").append("svg") | |
.attr("width", width) | |
.attr("height", height); | |
d3.json("readme-swiss.json", function(error, swiss) { | |
if (error) throw error; | |
var cantons = topojson.feature(swiss, swiss.objects.cantons); | |
svg.append("path") | |
.datum(cantons) | |
.attr("class", "canton") | |
.attr("d", path); | |
svg.append("path") | |
.datum(topojson.mesh(swiss, swiss.objects.cantons, function(a, b) { return a !== b; })) | |
.attr("class", "canton-boundary") | |
.attr("d", path); | |
svg.selectAll("text") | |
.data(cantons.features) | |
.enter().append("text") | |
.attr("transform", function(d) { return "translate(" + path.centroid(d) + ")"; }) | |
.attr("dy", ".35em") | |
.text(function(d) { return d.properties.name; }); | |
}); | |
</script> |
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