Basic steps for rendering a topojson file
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December 20, 2015 05:49
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D3: Basemap With Topojson
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<!DOCTYPE html> | |
<meta http-equiv="content-type" content="text/html; charset=utf-8"> | |
<style> | |
.states { | |
fill: #e5e5e5; | |
stroke: #fff; | |
stroke-width:2px; | |
} | |
</style> | |
<body> | |
<script src="http://d3js.org/d3.v3.min.js"></script> | |
<script src="http://d3js.org/topojson.v1.min.js"></script> | |
<script> | |
var width = 960, | |
height = 500; | |
var svg = d3.select('body').append('svg') | |
.attr('width', width) | |
.attr('height', height); | |
var projection = d3.geo.albersUsa() | |
.scale(1000) | |
.translate([width / 2, height / 2]); | |
var path = d3.geo.path() | |
.projection(projection); | |
d3.json('us.json', function(error, us) { //world = temporary | |
svg.append('path') | |
.datum(topojson.feature(us, us.objects.state)) | |
.attr('class', 'states') | |
.attr('d', path); | |
}); | |
</script> | |
</body> | |
</html> |
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