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Maastricht Choropleth Map
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Maastricht</title> | |
| <link rel="stylesheet" href="style.css"> | |
| <link href="https://fonts.googleapis.com/css?family=Roboto:400,700" rel="stylesheet"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| </head> | |
| <body> | |
| <svg id="map"></svg> | |
| <script src="index.js"></script> | |
| </body> | |
| </html> |
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| var margin = { top: 50, right: 50, bottom: -20, left: 50 }, | |
| width = 300 - margin.left - margin.right, | |
| height = 400 - margin.top - margin.bottom; | |
| var svg = d3.select("#map") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top +")"); | |
| var projection = d3.geoMercator() | |
| .center([5.690973, 50.851368]) | |
| .scale(110000) | |
| .translate([width / 2, height / 2]); | |
| var path = d3.geoPath() | |
| .projection(projection); | |
| var totaalInw = [0, 500, 1000, 2000, 3000, 4000, 5000, 6000, 7000]; | |
| var palette = ['#fff7f3','#fde0dd','#fcc5c0','#fa9fb5','#f768a1','#dd3497','#ae017e','#7a0177','#49006a']; | |
| var color = d3.scaleLinear() | |
| .domain(totaalInw) | |
| .range(palette); | |
| var tip = d3.select("body").append("div") | |
| .attr("class", "tooltip") | |
| .style("opacity", 0); | |
| d3.json("maastricht.json", function(err, json) { | |
| if (err) throw error; | |
| function drawMap() { | |
| svg = svg.append("g") | |
| .attr("class", "maastricht") | |
| .selectAll("#map") | |
| .data(json.features); | |
| svg | |
| .enter().append("g") | |
| .append("path") | |
| .attr("d", path) | |
| .style("fill", function(d) { | |
| return color(d.properties.AANT_INW); | |
| }) | |
| .on("mouseover", function(d) { | |
| tip.transition() | |
| .duration(300) | |
| .style("opacity", .9) | |
| tip.html( | |
| "<h4>" + "Plaats " + "</h4>" + "<p>" + d.properties.BU_NAAM + "</p>" + | |
| "<br>" + "<hr> " + | |
| "<h4>" + "Inwoners " + "</h4>" + "<p>" + d.properties.AANT_INW) + "</p>" | |
| }) | |
| .on("mousemove", function(d) { | |
| tip | |
| .style("left", (d3.event.pageX + 15) + "px") | |
| .style("top", (d3.event.pageY + 5) + "px"); | |
| }) | |
| .on("mouseout", function(d) { | |
| tip.transition() | |
| .duration(300) | |
| .style("opacity", 0); | |
| }); | |
| }; | |
| drawMap(); | |
| }); |
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| html { | |
| font-family: 'Roboto', sans-serif; | |
| } | |
| body { | |
| background: whitesmoke; | |
| } | |
| g.maastricht path { | |
| stroke: indigo; | |
| stroke-width: 1px; | |
| stroke-linejoin: round; | |
| stroke-linecap: round; | |
| } | |
| g.maastricht path:hover { | |
| opacity: .85; | |
| transition: .2s; | |
| } | |
| div.tooltip { | |
| position: absolute; | |
| width: 160px; | |
| height: 110px; | |
| padding: 15px; | |
| background: #eee; | |
| border: 1px solid #444; | |
| border-radius: 3px; | |
| pointer-events: none; | |
| } | |
| h1, h2, h3, h4, p, a, span, div { | |
| margin: 0; | |
| } | |
| .tooltip p { | |
| margin: 0; | |
| display: inline; | |
| width: 200px; | |
| } |
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