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@tomstove
Created May 13, 2013 10:56
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London with D3
<!DOCTYPE html>
<head>
<style>
.landuse {
fill: #efefef;
}
.roads {
fill: none;
stroke: #777;
stroke-width: 0.3px;
}
.roads_residential {
fill: none;
stroke: #fff;
stroke-width: 0.3px;
}
.roads_primary {
fill: none;
stroke: #555;
stroke-width: 0.35px;
}
.roads_trunk {
fill: none;
stroke: #3b3b3b;
stroke-width: 0.4px;
}
.water {
fill: steelblue;
fill-opacity: 0.3;
}
</style>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://d3js.org/d3.geo.projection.v0.min.js"></script>
<script src="http://d3js.org/topojson.v0.min.js"></script>
</head>
<body>
<script>
var width = 960,
height = 500;
var projection = d3.geo.mercator()
.translate([600, height/2])
.center([0.0, 51.4971])
.scale(150000);
var path = d3.geo.path()
.projection(projection);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var landuse = svg.append("g");
var roads = svg.append("g");
var roads_residential = svg.append("g");
var roads_primary = svg.append("g");
var roads_trunk = svg.append("g");
var water = svg.append("g");
d3.json('london.topo.json', function(err, data) {
landuse.append("path")
.datum(topojson.object(data, data.objects.landuse))
.attr("class", "landuse")
.attr("d", path);
roads.append("path")
.datum(topojson.object(data, data.objects.roads))
.attr("class", "roads")
.attr("d", path);
roads_residential.append("path")
.datum(topojson.object(data, data.objects.roads_residential))
.attr("class", "roads_residential")
.attr("d", path);
roads_primary.append("path")
.datum(topojson.object(data, data.objects.roads_primary))
.attr("class", "roads_primary")
.attr("d", path);
roads_trunk.append("path")
.datum(topojson.object(data, data.objects.roads_trunk))
.attr("class", "roads_trunk")
.attr("d", path);
water.append("path")
.datum(topojson.object(data, data.objects.waterway))
.attr("class", "water")
.attr("d", path);
});
</script>
</body>
</html>
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