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@monte-hayward
Last active August 29, 2015 14:22
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Map using TopoJSON
ne_10m_admin_0_map_subunits
ne_10m_populated_places
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.subunit.SCT { fill: #ddc; }
.subunit.WLS { fill: #cdd; }
.subunit.NIR { fill: #cdc; }
.subunit.ENG { fill: #dcd; }
.subunit-boundary {
fill: none;
stroke: #777;
stroke-dasharray: 2,2;
stoke-linejoin: round;
}
.subunit-boundary.IRL {
fill: #fff;
stroke: #aaa;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.js"></script>
<script src="http://d3js.org/topojson.v1.js"></script>
<script>
var width = 960, height = 1160;
var svg = d3.select('body').append('svg')
.attr('width', width)
.attr('height', height);
d3.json('uk.json', function(error, uk){
if(error) return console.err(error);
console.log(uk);
var subunits = topojson.feature(uk, uk.objects.subunits);
var projection = d3.geo.albers()
.center([0,55.4])
.rotate([4.4, 0])
.parallels([50, 60])
.scale(6000)
.translate([width / 2, height /2]);
var path = d3.geo.path()
.projection(projection);
svg.append('path')
.datum(subunits)
.attr('d', path);
//display UK boundaries
svg.selectAll('.subunit')
.data(topojson.feature(uk, uk.objects.subunits).features)
.enter().append('path')
.attr('class', function(d) { return 'subunit ' + d.id })
.attr('d', path);
//display Ireland boundaries
svg.append('path')
.datum(topojson.mesh(uk, uk.objects.subunits, function(a, b){
return a === b && a.id === 'IRL';
}))
.attr('d', path)
.attr('class', 'subunit-boundary IRL');
//display places
svg.append('path')
.datum(topojson.feature(uk, uk.objects.places))
.attr('d', path)
.attr('class', 'place');
svg.selectAll('.place-label')
.data(topojson.feature(uk, uk.objects.places).features)
.enter().append('text')
.attr('class', 'place-label')
.attr('transform', function(d){
return 'translate(' + projection(d.geometry.coordinates) + ')';
})
.attr('dy', '.35rem')
.text(function(d){
return ' ' + d.properties.name + ' ';
});
svg.selectAll('.place-label')
.attr('x', function(d){
return d.geometry.coordinates[0] > -1 ? 6 : -6;
})
.style('text-anchor', function(d){
return d.geometry.coordinates[0] > -1 ? 'start' : 'end';
});
});
</script>
</body>
</html>
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