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index_I.html
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index_I.html
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<!-- https://bl.ocks.org/mbostock/4699541 -->
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.background {
fill: none;
pointer-events: all;
}
.feature {
fill: #ccc;
cursor: pointer;
}
.feature.active {
fill: orange;
}
.mesh {
fill: none;
stroke: #fff;
stroke-linecap: round;
stroke-linejoin: round;
}
</style>
<body>
<script src="d3.v3.min.js"></script>
<script src="lib/topojson.v1.min.js"></script>
<script>
var width = 960,
height = 700,
active = d3.select(null);
var projection = d3.geo.mercator() //d3.geo.albersUsa()
.scale(130)
//.translate([width / 2, height / 2]);
.translate([width / 2, height / 1.5]);
var path = d3.geo.path()
.projection(projection);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
svg.append("rect")
.attr("class", "background")
.attr("width", width)
.attr("height", height)
.on("click", reset);
var g = svg.append("g")
.style("stroke-width", "1.5px");
d3.json("refs/all_coscat.topojson", function(error, us) {
if (error) throw error;
g.selectAll("path")
//.data(topojson.feature(us, us.objects.states).features)
.data(topojson.feature(us, us.objects.Continents).features)
.enter().append("path")
.attr("d", path)
.attr("class", "feature")
.on("click", clicked);
g.append("path")
//.datum(topojson.mesh(us, us.objects.states, function(a, b) { return a !== b; }))
.datum(topojson.mesh(us, us.objects.Continents, function(a, b) { return a !== b; }))
.attr("class", "mesh")
.attr("d", path);
});
function clicked(d) {
if (active.node() === this) return reset();
active.classed("active", false);
active = d3.select(this).classed("active", true);
var bounds = path.bounds(d),
dx = bounds[1][0] - bounds[0][0],
dy = bounds[1][1] - bounds[0][1],
x = (bounds[0][0] + bounds[1][0]) / 2,
y = (bounds[0][1] + bounds[1][1]) / 2,
scale = .9 / Math.max(dx / width, dy / height),
translate = [width / 2 - scale * x, height / 2 - scale * y];
g.transition()
.duration(750)
.style("stroke-width", 1.5 / scale + "px")
.attr("transform", "translate(" + translate + ")scale(" + scale + ")");
}
function reset() {
active.classed("active", false);
active = d3.select(null);
g.transition()
.duration(750)
.style("stroke-width", "1.5px")
.attr("transform", "");
}
</script>