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Austria D3 TopoJSON

D3 & TopoJSON sample for Austria.

Idea and tutorial: Let's Make a Map by Mike Bostock

Makefile for build of TopoJSON 'aut.json': Why Use Make by Mike Bostock

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
.subunit.AUT { fill: #dcd; }
.place,
.place-label {
fill: #444;
}
text {
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
font-size: 10px;
pointer-events: none;
}
.subunit-boundary {
fill: none;
stroke: #777;
stroke-dasharray: 2,2;
stroke-linejoin: round;
}
.subunit-label {
fill: #777;
fill-opacity: .5;
font-size: 20px;
font-weight: 300;
text-anchor: middle;
}
</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 = 1160;
var projection = d3.geo.albers()
.center([0, 45.5])
.rotate([-13.8, 0])
.parallels([40, 50])
.scale(9000)
.translate([width / 2, height / 2]);
var path = d3.geo.path()
.projection(projection)
.pointRadius(2);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
d3.json("aut.json", function(error, aut) {
console.log(aut);
svg.selectAll(".subunit")
.data(topojson.feature(aut, aut.objects.subunits).features)
.enter().append("path")
.attr("class", function(d) {
return "subunit " + d.id;
})
.attr("d", path);
svg.append("path")
.datum(topojson.feature(aut, aut.objects.places))
.attr("d", path)
.attr("class", "place");
svg.selectAll(".place-label")
.data(topojson.feature(aut, aut.objects.places).features)
.enter().append("text")
.attr("class", "place-label")
.attr("transform", function(d) { return "translate(" + projection(d.geometry.coordinates) + ")"; })
.attr("dy", ".35em")
.text(function(d) { return d.properties.name; });
svg.selectAll(".place-label")
.attr("x", function(d) { return d.geometry.coordinates[0] > 16.3 ? 6 : -6; })
.style("text-anchor", function(d) { return d.geometry.coordinates[0] > 16.3 ? "start" : "end"; });
svg.selectAll(".subunit-label")
.data(topojson.feature(aut, aut.objects.subunits).features)
.enter().append("text")
.attr("class", function(d) { return "subunit-label " + d.id; })
.attr("transform", function(d) { return "translate(" + path.centroid(d) + ")"; })
.attr("dy", ".35em")
.text(function(d) { return d.properties.name; });
});
</script>
</body>
aut.json: subunits.json places.json
topojson --id-property su_a3 -p name=NAME -p name -o aut.json subunits.json places.json
subunits.json: ne_10m_admin_0_map_subunits.shp
ogr2ogr -f GeoJSON -where "adm0_a3 IN ('AUT')" subunits.json ne_10m_admin_0_map_subunits.shp
places.json: ne_10m_populated_places.shp
ogr2ogr -f GeoJSON -where "iso_a2 = 'AT' AND SCALERANK < 20" places.json ne_10m_populated_places.shp
ne_10m_admin_0_map_subunits.shp: subunits.zip
unzip subunits.zip
touch ne_10m_admin_0_map_subunits.shp
ne_10m_populated_places.shp: places.zip
unzip places.zip
touch ne_10m_populated_places.shp
subunits.zip:
curl -o subunits.zip 'http://www.nacis.org/naturalearth/10m/cultural/ne_10m_admin_0_map_subunits.zip'
places.zip:
curl -o places.zip 'http://www.nacis.org/naturalearth/10m/cultural/ne_10m_populated_places.zip'
clean:
rm `ls | grep -v 'zip' | grep -v 'Makefile' `
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