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@chilijung
Created May 12, 2014 10:03
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Tawain vote map.

Tawain vote map.

<!DOCTYPE html>
<meta charset="utf-8">
<style>
/* CSS goes here. */
#content {
fill: #FFF;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://d3js.org/topojson.v1.min.js"></script>
<div id="content">
</div>
<script>
var w = 800,
h = 600;
var projection = d3.geo.mercator()
.center([120.979531, 23.978567])
.scale(10000);
var color = d3.scale.category10();
var path = d3.geo.path()
.projection(projection);
var svg = d3.select('#content')
.append('svg')
.attr('width', w)
.attr('height', h)
.attr('viewBox', "0 0 800 600")
.attr('preserveAspectRatio', 'xMidYMid');
/* JavaScript goes here. */
d3.json('twVote1982.topo.json', function(err, data) {
var topo = topojson.feature(data, data.objects["twVote1982.geo"]);
var topomesh = topojson.mesh(data, data.objects["twVote1982.geo"], function(a, b){
return a !== b;
});
topo.features.forEach(function(d, i) {
if(d.properties.name === "新北市第12選區" || d.properties.name === "澎湖縣第1選區" || d.properties.name=== "台東縣第1選區" || d.properties.name === "台中市第1選區") {
topo.features.splice(i, 1);
}
})
console.log(topo.features)
svg.selectAll('path.county')
.data(topo.features)
.enter()
.append('path')
.attr('class', 'county')
.attr('class', function(d) { return d.properties.name; })
.attr('id', function(d) { return d.properties.county; })
.attr('d', path)
.style('fill', function(){
return color(Math.random());
})
.style('stroke', 'none')
.style('opacity', 0.9);
svg.append('path')
.attr('class', 'boundary')
.datum(topomesh)
.attr('d', path)
.style('fill', 'none')
.style('stroke', "rgba(255,255,255,0.5)")
.style('stroke-width', '2px');
})
</script>
</body>
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