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August 29, 2015 14:18
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Save pdbartsch/81437646b9e9ec00bf87 to your computer and use it in GitHub Desktop.
Working through a d3 map tutorial http://bost.ocks.org/mike/map/
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.subunit.SCT { fill: #ddc; } | |
.subunit.WLS { fill: #cdd; } | |
.subunit.NIR { fill: #cdc; } | |
.subunit.ENG { fill: #dcd; } | |
.subunit.IRL { display: none; } | |
.subunit-boundary { | |
fill: none; | |
stroke: #777; | |
stroke-dasharray: 2,2; | |
stroke-linejoin: round; | |
} | |
.subunit-boundary.IRL { | |
stroke: #aaa; | |
} | |
.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 projection = d3.geo.mercator() | |
.scale(500) | |
.translate([width / 2, height / 2]); | |
*/ | |
var width = 960, | |
height = 1160; | |
var projection = d3.geo.albers() | |
.center([0, 55.4]) | |
.rotate([4.4, 0]) | |
.parallels([50, 60]) | |
.scale(1200 * 5) | |
.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("uk.json", function(error, uk) { | |
var subunits = topojson.feature(uk, uk.objects.subunits), | |
places = topojson.feature(uk, uk.objects.places); | |
svg.selectAll(".subunit") | |
.data(subunits.features) | |
.enter().append("path") | |
.attr("class", function(d) { return "subunit " + d.id; }) | |
.attr("d", path); | |
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"); | |
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"); | |
svg.selectAll(".subunit-label") | |
.data(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; }); | |
svg.append("path") | |
.datum(places) | |
.attr("d", path) | |
.attr("class", "place"); | |
svg.selectAll(".place-label") | |
.data(places.features) | |
.enter().append("text") | |
.attr("class", "place-label") | |
.attr("transform", function(d) { return "translate(" + projection(d.geometry.coordinates) + ")"; }) | |
.attr("x", function(d) { return d.geometry.coordinates[0] > -1 ? 6 : -6; }) | |
.attr("dy", ".35em") | |
.style("text-anchor", function(d) { return d.geometry.coordinates[0] > -1 ? "start" : "end"; }) | |
.text(function(d) { return d.properties.name; }); | |
}); | |
</script> |
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