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@arrayjam
Last active December 24, 2015 11:58
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Australia polling booth voronoi and ocean overlay
<!DOCTYPE html>
<meta charset="utf-8">
<style>
path {
stroke-linejoin: round;
fill: none;
}
.topojson {
stroke: #222;
}
.voronoi {
stroke: none;
}
.geojson {
stroke: red;
}
.ocean {
fill: steelblue;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://d3js.org/queue.v1.min.js"></script>
<script src="http://d3js.org/topojson.v1.min.js"></script>
<script>
var width = 960,
height = 600;
var ausCenter = [144.9, -37.8];
var parallels = [-36, -18];
var projection = d3.geo.albers()
.translate([width / 2, height / 2])
.scale(20000)
.rotate([-ausCenter[0], 0])
.center([0, ausCenter[1]])
.parallels(parallels)
.clipExtent([[0, 0], [width, height]])
.precision(0);
var path = d3.geo.path()
.projection(projection);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var zoom = d3.behavior.zoom()
.translate(projection.translate())
.scale(projection.scale())
.on("zoom", zoomed);
svg.call(zoom);
queue()
.defer(d3.json, "voronoi.json")
.defer(d3.json, "ocean.json")
.await(ready);
function ready(err, geo, ocean) {
window.geo = geo;
console.log(geo);
svg.selectAll("path.geojson")
.data(topojson.feature(geo, geo.objects.voronoi).features)
.enter().append("path")
.attr("class", "geojson")
.attr("d", path);
svg.append("path")
.datum(topojson.feature(ocean, ocean.objects.ocean))
.attr("class", "ocean")
.attr("d", path);
console.log(ocean);
}
function zoomed() {
projection
.translate(d3.event.translate)
.scale(d3.event.scale);
svg.selectAll("path").attr("d", path);
}
</script>
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