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<!DOCTYPE html> | ||
<meta charset="utf-8"> | ||
<style> | ||
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rect { | ||
fill: none; | ||
pointer-events: all; | ||
} | ||
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.feature { | ||
fill: #ddd; | ||
stroke: 0px; | ||
cursor: pointer; | ||
} | ||
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.feature.active { | ||
fill: orange; | ||
} | ||
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.mesh { | ||
fill: none; | ||
stroke: red; | ||
stroke-width: .7px; | ||
stroke-linejoin: round; | ||
stroke-dasharray: 1,2; | ||
} | ||
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.district-label { | ||
fill: black; | ||
font-size: 14px; | ||
font-weight: 200; | ||
text-anchor: middle; | ||
} | ||
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.bikelanes { | ||
fill: none; | ||
stroke-width: .5px; | ||
stroke-linecap: round; | ||
stroke-linejoin: round; | ||
visibility:visible; | ||
} | ||
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text { | ||
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; | ||
font-size: 10px; | ||
pointer-events: none; | ||
} | ||
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</style> | ||
<body> | ||
<script src="http://d3js.org/d3.v3.min.js"></script> | ||
<script src="http://d3js.org/topojson.v1.min.js"></script> | ||
<script> | ||
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var width = window.innerWidth-20, | ||
height = window.innerHeight-20, | ||
active; | ||
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var projection = d3.geo.mercator() | ||
.center([-122.406968,37.776873]) | ||
.scale(.60*(1 << 21) / 2 / Math.PI) | ||
.translate([width / 2, height / 2]); | ||
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var path = d3.geo.path() | ||
.projection(projection); | ||
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var svg = d3.select("body").append("svg") | ||
.attr("width", width) | ||
.attr("height", height); | ||
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svg.append("rect") | ||
.attr("width", width) | ||
.attr("height", height) | ||
.on("click", reset); | ||
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var g = svg.append("g"); | ||
var SF = g.append("g"); | ||
var network = g.append("g"); | ||
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var stroke = d3.scale.log() | ||
.domain([1,1980,1990,2000,2005,2010,2015]) | ||
.range(["#A00000","#f2f0f7", "#dadaeb", "#bcbddc", "#9e9ac8", "#756bb1", "#54278f"]); | ||
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d3.json("Elect_Supervisor_Dists_Topo.json", function(error, topology) { | ||
var districts = topojson.feature(topology, topology.objects.districts); | ||
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SF.selectAll("path") | ||
.data(districts.features) | ||
.enter().append("path") | ||
.attr("d", path) | ||
.attr("class", "feature") | ||
.on("click", click); | ||
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SF.append("path") | ||
.datum(topojson.mesh(topology, topology.objects.districts, function(a, b) { return a !== b; })) | ||
.attr("class", "mesh") | ||
.attr("d", path); | ||
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SF.selectAll(".district-label") | ||
.data(topojson.feature(topology, topology.objects.districts).features) | ||
.enter().append("text") | ||
.attr("class", function(d) { return "district-label " + d.id; }) | ||
.attr("transform", function(d) { return "translate(" + path.centroid(d) + ")"; }) | ||
.attr("dy", ".35em") | ||
.text(function(d) { return d.properties.supdist; }); | ||
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}); | ||
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// d3.json("SFMTABikewayNetworkTopo.json", function(error, topology) { | ||
// var bikelanes = topojson.feature(topology, topology.objects.bikelanes); | ||
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// network.selectAll("path") | ||
// .data(bikelanes.features) | ||
// .enter().append("path") | ||
// .attr("d", path) | ||
// .attr("class", "bikelanes") | ||
// .style("stroke", function(d) { return stroke(d.properties.YEAR_INSTA) }) | ||
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// network.append("path") | ||
// .datum(bikelanes.features) | ||
// .attr("class", "mesh") | ||
// .attr("d", path); | ||
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//}); | ||
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function click(d) { | ||
if (active === d) return reset(); | ||
SF.selectAll(".active").classed("active", false); | ||
d3.select(this).classed("active", active = d); | ||
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var b = path.bounds(d); | ||
g.transition().duration(1000).attr("transform", | ||
"translate(" + projection.translate() + ")" | ||
+ "scale(" + .90 / Math.max((b[1][0] - b[0][0]) / width, (b[1][1] - b[0][1]) / height) + ")" | ||
+ "translate(" + -(b[1][0] + b[0][0]) / 2 + "," + -(b[1][1] + b[0][1]) / 2 + ")"); | ||
} | ||
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function reset() { | ||
SF.selectAll(".active").classed("active", active = false); | ||
g.transition().duration(1000).attr("transform", ""); | ||
} | ||
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</script> |