Proportion of empty houses in Japan, taken from this page by @yasufumisaito but adapted to use the d3-composite-projections.
The data is originally from the Statistics Bureau at Ministry of Internal Affairs and Communications.
Last active
February 29, 2016 16:06
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Japan Empty Houses
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <meta charset="utf-8"> | |
| <title>Japan empty houses</title> | |
| <head> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://d3js.org/topojson.v1.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3-legend/1.7.0/d3-legend.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3-composite-projections/0.3.5/conicEquidistantJapan.min.js"></script> | |
| <style> | |
| body, html { | |
| color:#c2b59b; | |
| background-color: #191919; | |
| margin:0; | |
| padding:0; | |
| } | |
| svg { | |
| background-color: #2f2f2f; | |
| border-radius: 10px | |
| } | |
| /* Styling for new <div> */ | |
| #tooltip { | |
| position: absolute; | |
| top: 0; | |
| left: 0; | |
| z-index: 10; | |
| margin: 0; | |
| padding: 10px; | |
| width: 200px; | |
| height: 70px; | |
| color: white; | |
| font-family: sans-serif; | |
| font-size: 1.2em; | |
| font-weight: bold; | |
| text-align: center; | |
| background-color: rgba(0, 0, 0, 0.55); | |
| opacity: 0; | |
| pointer-events: none; | |
| border-radius:5px; | |
| transition: .2s; | |
| } | |
| .legendLinear | |
| { | |
| font-family: "Lato"; | |
| fill:#c2b59b; | |
| } | |
| .legendTitle { | |
| font-size: 1em; | |
| } | |
| span { | |
| color:#fac863; | |
| font-weight: bold; | |
| /*font-size:1.5em;*/ | |
| } | |
| a { | |
| text-decoration:underline; | |
| color:#c2b59b; | |
| } | |
| </style> | |
| <link href='https://fonts.googleapis.com/css?family=Lato:900,400,300' rel='stylesheet' type='text/css'> | |
| </head> | |
| <body> | |
| <div id="container"> | |
| <div id="tooltip"> | |
| </div> | |
| </div> | |
| <script> | |
| var w = 700, | |
| h = 600; | |
| var svg = d3.select("#container").append("svg") | |
| .attr("width", w) | |
| .attr("height", h); | |
| d3.json("empty.json", function (error, json) { | |
| var japan = topojson.feature(json, json.objects.japan).features; | |
| /*var projection = d3.geo.mercator() | |
| .center([137, 37]) | |
| .translate([w/2, h/2]) | |
| .scale(2500);*/ | |
| var projection = d3.geo.conicEquidistantJapan(); | |
| var path = d3.geo.path().projection(projection); | |
| var color = d3.scale.linear() | |
| .domain([9, 12, 16, 19, 22 | |
| ]) | |
| .range(["#feebe2", "#fbb4b9","#f768a1","#c51b8a","#7a0177"]); | |
| svg.selectAll("path") | |
| .data(japan) | |
| .enter() | |
| .append("path") | |
| .attr("d", path) | |
| .attr("stroke", "#ccc") | |
| .attr("stroke-width", .3) | |
| .attr("fill", function(d, i){ | |
| return color(d.properties.empty); | |
| }) | |
| .on("mouseover", function(d){ | |
| //Show the tooltip | |
| var x = d3.event.pageX; | |
| var y = d3.event.pageY - 40; | |
| d3.select("#tooltip") | |
| .style("left", x + "px") | |
| .style("top", y + "px") | |
| .style("opacity", 1) | |
| .text( d.properties.empty + " % of the houses in " + d.id + " are vacant."); | |
| }) | |
| .on("mouseout", function(){ | |
| //Hide the tooltip | |
| d3.select("#tooltip") | |
| .style("opacity", 0); | |
| }); | |
| svg | |
| .append("path") | |
| .style("fill","none") | |
| .style("stroke","#000") | |
| .attr("d", projection.getCompositionBorders()); | |
| }); | |
| //Create the Legend | |
| var linear = d3.scale.linear() | |
| .domain([9, 12, 16, 19, 22]) | |
| .range(["#feebe2", "#fbb4b9","#f768a1","#c51b8a","#7a0177"]); | |
| d3.select("svg").append("g") | |
| .attr("class", "legendLinear") | |
| .attr("transform", "translate(200,500)"); | |
| var legendLinear = d3.legend.color() | |
| .title("Proportion of empty home (%)") | |
| .shapeHeight(20) | |
| .shapeWidth(60) | |
| .shapeRadius(10) | |
| .cells([9, 12, 16, 19, 22]) | |
| .orient("horizontal") | |
| .labelAlign("start") | |
| .scale(linear); | |
| svg.select(".legendLinear") | |
| .call(legendLinear); | |
| </script> |
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