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<!DOCTYPE html> |
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<meta charset="utf-8"> |
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<style> |
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body { |
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background: #fcfcfa; |
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} |
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.stroke { |
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fill: none; |
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stroke: #000; |
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stroke-width: 3px; |
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} |
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.fill { |
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fill: #fff; |
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} |
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.land { |
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fill: #ddd; |
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} |
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.boundary { |
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fill: none; |
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stroke: #fff; |
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} |
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</style> |
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<body> |
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<script src="//d3js.org/d3.v3.min.js"></script> |
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<script src="//d3js.org/d3.geo.projection.v0.min.js"></script> |
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<script src="//d3js.org/queue.v1.min.js"></script> |
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<script src="//d3js.org/topojson.v1.min.js"></script> |
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<script> |
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var parseDate = d3.time.format("%Y-%m-%d").parse, |
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formatDate = d3.time.format("%x"); |
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var width = 960, |
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height = 500; |
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var projection = d3.geo.naturalEarth() |
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.scale(167) |
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.translate([width / 2, height / 2]) |
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.precision(.1); |
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var color = d3.scale.linear() |
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.domain([new Date(1900, 0, 1), new Date(2000, 0, 1)]) |
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.range(["purple", "orange"]) |
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.clamp(true) |
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.interpolate(d3.interpolateHcl); |
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var path = d3.geo.path() |
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.projection(projection); |
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var svg = d3.select("body").append("svg") |
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.attr("width", width) |
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.attr("height", height); |
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svg.append("defs").append("path") |
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.datum({type: "Sphere"}) |
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.attr("id", "sphere") |
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.attr("d", path); |
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svg.append("use") |
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.attr("class", "stroke") |
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.attr("xlink:href", "#sphere"); |
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svg.append("use") |
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.attr("class", "fill") |
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.attr("xlink:href", "#sphere"); |
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queue() |
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.defer(d3.json, "/mbostock/raw/4090846/world-50m.json") |
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.defer(d3.tsv, "treaties.tsv", type) |
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.await(ready); |
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function ready(error, world, treaties) { |
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if (error) throw error; |
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var treatiesById = d3.nest() |
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.key(function(d) { return d.id; }) |
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.sortValues(function(a, b) { return a.date - b.date; }) |
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.map(treaties, d3.map); |
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var country = svg.insert("g", ".graticule") |
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.attr("class", "land") |
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.selectAll("path") |
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.data(topojson.feature(world, world.objects.countries).features) |
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.enter().append("path") |
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.attr("d", path); |
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country.filter(function(d) { return d.id === 840; }) |
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.style("fill", "#000") |
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.append("title") |
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.text("United States"); |
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country.filter(function(d) { return treatiesById.has(d.id); }) |
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.style("fill", function(d) { return color(treatiesById.get(d.id)[0].date); }) |
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.append("title") |
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.text(function(d) { |
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var treaties = treatiesById.get(d.id); |
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return treaties[0].name + "\n" + treaties.map(function(d) { return formatDate(d.date); }).join("\n"); |
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}); |
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svg.insert("path", ".graticule") |
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.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; })) |
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.attr("class", "boundary") |
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.attr("d", path); |
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} |
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function type(d) { |
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d.id = +d.id; |
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d.date = parseDate(d.date); |
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return d; |
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} |
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d3.select(self.frameElement).style("height", height + "px"); |
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</script> |
