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April 12, 2018 16:55
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Japan population growth
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script src="//d3js.org/topojson.v1.min.js"></script> | |
| <script src="https://unpkg.com/[email protected]/build/d3-simple-slider.js"></script> | |
| <title>Japanese Population Trend After WW2</title> | |
| <style> | |
| .keys.selected { | |
| font-weight: bold; | |
| color: red; | |
| font-size: 14; | |
| } | |
| #tooltip { | |
| position: absolute; | |
| top: 0; | |
| left: 0; | |
| background-color: #f0f0f0; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="container"></div> | |
| <script type="text/javascript"> | |
| var japan; | |
| var keys; // variable for different key(prefecture) | |
| var currentKey; // variable for current selection key (year) | |
| var w = 960; | |
| var h = 760; | |
| var container = d3.select('.container'); | |
| var svg = container.append('svg') | |
| .attr('width', w) | |
| .attr('height', h) | |
| .append("g"); | |
| var g = svg.append("g"); | |
| // Tooltip style | |
| var tooltip = d3.select("body") | |
| .append("div") | |
| .attr("id", "tooltip") | |
| .style("opacity", 0); | |
| // Function for data from different year | |
| var clickKey = function() { | |
| currentKey = d3.select(this).attr('value'); | |
| d3.selectAll('.keys') | |
| .classed("selected", function(){return (d3.select(this).attr('value') === currentKey)}); | |
| updateMap(); | |
| } | |
| // Create slider for different year | |
| var slider = function() { | |
| currentKey = d3.select(this).attr('value'); | |
| d3.sliderHorizontal() | |
| .min(d3.min(keys)) | |
| .max(d3.max(keys)) | |
| .width(800) | |
| .tickFormat(d3.timeFormat('%Y')) | |
| .tickValues(keys) | |
| .on('onchange', function(){return (d3.select(this).attr('value') === currentKey)}); | |
| updateMap(); | |
| } | |
| // Assign color to domain range | |
| var color = d3.scale.linear() | |
| .domain([-150, 300, 750, 1200, 1800]) | |
| .range(['#feebe2', '#fbb4b9', '#f768a1', '#c51b8a', '#7a0177']); | |
| // Update map color | |
| var updateMap = function() { | |
| g.selectAll('path') | |
| .transition() | |
| .duration(1000) | |
| .style('fill', function(d) { | |
| return color(d.properties[currentKey]); | |
| }); | |
| } | |
| // Legend color | |
| svg.selectAll('rect.legend') | |
| .data(color.domain()) | |
| .enter() | |
| .append('rect') | |
| .attr('class', 'legend') | |
| .attr('x', 65) | |
| .attr('y', function(d, i) { return 100 + 20 * i; }) | |
| .attr('width', 20) | |
| .attr('height', 20) | |
| .attr('fill', function(d) { return color(d); }); | |
| // Legend text | |
| svg.selectAll('text.legend') | |
| .data(color.domain()) | |
| .enter() | |
| .append('text') | |
| .attr('x', 60) | |
| .attr('y', function(d, i) { return 100 + 20 * i + 12; }) | |
| .attr('font-size', 9) | |
| .attr('text-anchor', 'end') | |
| .text(function(d) { return d; }); | |
| // Read map file | |
| d3.json('japan.topojson', function(error, collection) { | |
| var japan = topojson.feature(collection, collection.objects.japan).features; | |
| // Setup map | |
| var projection = d3.geo.mercator() | |
| .scale(1500) | |
| .center([137, 34.5]) | |
| .translate([w / 2, h / 2]); | |
| var path = d3.geo.path().projection(projection); | |
| g.selectAll('path') | |
| .data(japan) | |
| .enter() | |
| .append('path') | |
| .attr('d', path) | |
| .attr('prefecture', function(d) { | |
| return d.properties.name; | |
| }) | |
| .style('fill', function(d, i) { | |
| return 'white'; | |
| }) | |
| .attr("stroke", "#404040") | |
| .attr("stroke-width", 0.5) | |
| .style('cursor', 'pointer') | |
| .on('mouseover', function(d){ | |
| tooltip.style("opacity", 1) | |
| .html(d.properties['name']+'<br/>'+d.properties[currentKey]) | |
| .style("left", (d3.event.pageX + 10) + "px") | |
| .style("top", (d3.event.pageY - 40) + "px"); | |
| var self = d3.select(this); | |
| self.style('fill', 'red'); | |
| }) | |
| .on('mousemove', function(d){ | |
| tooltip | |
| .style("left", (d3.event.pageX + 10) + "px") | |
| .style("top", (d3.event.pageY - 40) + "px"); | |
| }) | |
| .on('mouseout', function(d, i){ | |
| tooltip.style("opacity", 0); | |
| var self = d3.select(this); | |
| self.transition() | |
| .duration(300) | |
| .style('fill', function(d, i) { | |
| return color(d.properties[currentKey]); | |
| }); | |
| }); | |
| // Read csv data | |
| d3.csv('jp_pop.csv', function(error, rows) { | |
| // Gather data from csv | |
| keys = Object.keys(rows[0]).filter(function(key){ return key !== 'prefecture'; }); | |
| svg.selectAll('.keys') | |
| .data(keys) | |
| .enter() | |
| .append('text') | |
| .attr('class', 'keys') | |
| .attr('x', w - 100) | |
| .attr('y', function(d,i){return 10 + i * h / keys.length; }) | |
| .attr('value', function(d){return d;}) | |
| .attr('font-size', 10) | |
| .style('cursor', 'pointer') | |
| .text(function(d){return d;}) | |
| .on('click', clickKey) | |
| // Add excess population data | |
| for (var i = 0; i < rows.length; i++) { | |
| var municipality = japan.filter(function(obj) { | |
| return (obj.properties['name'] === rows[i]['prefecture']); | |
| })[0]; | |
| if (municipality) { | |
| // | |
| keys.forEach(function(key){ | |
| municipality.properties[key] = rows[i][key]; | |
| }); | |
| } | |
| } | |
| // Set data to the first year when first load map | |
| currentKey = keys[0]; | |
| updateMap(); | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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| prefecture | 1955 | 1960 | 1965 | 1970 | 1975 | 1980 | 1985 | 1990 | 1995 | 2000 | 2005 | 2010 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hokkaido | 477 | 266 | 133 | 12 | 154 | 238 | 103 | -35 | 48 | -9 | -55 | -122 | -122 | |
| Aomori | 100 | 44 | -10 | 11 | 41 | 55 | 0 | -41 | -1 | -6 | -39 | -64 | -64 | |
| Iwate | 80 | 22 | -38 | -40 | 15 | 36 | 12 | -17 | 3 | -4 | -31 | -55 | -50 | |
| Miyagi | 64 | 16 | 10 | 66 | 136 | 127 | 94 | 73 | 80 | 36 | -5 | -12 | -14 | |
| Akita | 40 | -13 | -56 | -39 | -9 | 25 | -3 | -27 | -13 | -25 | -43 | -60 | -63 | |
| Yamagata | -3 | -33 | -58 | -37 | -6 | 32 | 10 | -4 | -1 | -13 | -28 | -47 | -46 | |
| Fukushima | 33 | -44 | -67 | -38 | 25 | 64 | 45 | 24 | 30 | -7 | -36 | -62 | -115 | |
| Ibaraki | 25 | -17 | 9 | 88 | 198 | 216 | 167 | 120 | 111 | 30 | -11 | -5 | -52 | |
| Tochigi | -2 | -34 | 8 | 58 | 118 | 94 | 74 | 69 | 49 | 21 | 12 | -9 | -33 | |
| Gumma | 13 | -36 | 28 | 53 | 97 | 93 | 72 | 45 | 38 | 21 | -1 | -16 | -35 | |
| Saitama | 117 | 168 | 584 | 851 | 955 | 599 | 444 | 541 | 354 | 179 | 116 | 141 | 66 | |
| Chiba | 66 | 101 | 396 | 665 | 782 | 586 | 413 | 407 | 243 | 128 | 130 | 160 | 8 | |
| Tokyo | 1759 | 1647 | 1185 | 539 | 266 | -56 | 211 | 27 | -82 | 290 | 513 | 582 | 355 | |
| Kanagawa | 431 | 524 | 988 | 1041 | 926 | 526 | 508 | 548 | 266 | 244 | 302 | 256 | 79 | |
| Niigata | 12 | -31 | -43 | -38 | 31 | 59 | 27 | -3 | 13 | -12 | -45 | -57 | -69 | |
| Toyama | 12 | 12 | -8 | 5 | 41 | 32 | 15 | 2 | 3 | -2 | -9 | -19 | -26 | |
| Ishikawa | 9 | 7 | 7 | 22 | 68 | 49 | 33 | 13 | 15 | 1 | -7 | -4 | -16 | |
| Fukui | 2 | -1 | -2 | -7 | 30 | 20 | 24 | 6 | 3 | 2 | -7 | -16 | -19 | |
| Yamanashi | -4 | -25 | -19 | -1 | 21 | 21 | 29 | 20 | 29 | 6 | -3 | -22 | -28 | |
| Nagano | -40 | -39 | -24 | -1 | 61 | 66 | 53 | 20 | 37 | 21 | -19 | -44 | -52 | |
| Gifu | 39 | 54 | 62 | 59 | 109 | 92 | 69 | 38 | 33 | 8 | -1 | -26 | -48 | |
| Shizuoka | 179 | 106 | 157 | 177 | 219 | 138 | 128 | 96 | 67 | 29 | 25 | -27 | -64 | |
| Aichi | 378 | 437 | 593 | 587 | 538 | 298 | 233 | 236 | 177 | 175 | 212 | 156 | 73 | |
| Mie | 25 | -1 | 29 | 29 | 83 | 61 | 60 | 46 | 48 | 16 | 10 | -12 | -39 | |
| Shiga | -7 | -11 | 10 | 37 | 96 | 94 | 76 | 66 | 65 | 56 | 37 | 31 | 2 | |
| Kyoto | 102 | 58 | 110 | 147 | 175 | 102 | 60 | 15 | 28 | 14 | 4 | -12 | -26 | |
| Osaka | 761 | 887 | 1152 | 963 | 659 | 194 | 195 | 67 | 62 | 8 | 12 | 48 | -26 | |
| Hyogo | 311 | 285 | 404 | 358 | 324 | 153 | 133 | 127 | -3 | 149 | 40 | -3 | -51 | |
| Nara | 13 | 4 | 45 | 104 | 147 | 132 | 96 | 70 | 56 | 12 | -22 | -20 | -36 | |
| Wakayama | 25 | -5 | 25 | 16 | 29 | 15 | 0 | -13 | 6 | -10 | -34 | -34 | -38 | |
| Tottori | 14 | -15 | -19 | -11 | 12 | 23 | 12 | 0 | -1 | -2 | -6 | -18 | -15 | |
| Shimane | 16 | -40 | -67 | -48 | -5 | 16 | 10 | -14 | -10 | -9 | -20 | -25 | -23 | |
| Okayama | 29 | -20 | -25 | 62 | 107 | 57 | 46 | 9 | 25 | 0 | 6 | -12 | -23 | |
| Hiroshima | 67 | 35 | 97 | 155 | 210 | 93 | 80 | 31 | 32 | -3 | -2 | -16 | -16 | |
| Yamaguchi | 69 | -8 | -58 | -33 | 44 | 32 | 15 | -29 | -17 | -28 | -35 | -42 | -46 | |
| Tokushima | -1 | -31 | -32 | -24 | 14 | 20 | 10 | -3 | 0 | -8 | -14 | -25 | -29 | |
| Kagawa | -2 | -25 | -18 | 7 | 53 | 39 | 23 | 0 | 4 | -4 | -11 | -16 | -19 | |
| Ehime | 19 | -40 | -55 | -28 | 47 | 42 | 23 | -15 | -8 | -14 | -25 | -37 | -45 | |
| Kochi | 9 | -28 | -42 | -26 | 21 | 23 | 9 | -15 | -8 | -3 | -18 | -32 | -36 | |
| Fukuoka | 330 | 147 | -42 | 62 | 266 | 260 | 166 | 92 | 122 | 83 | 34 | 22 | 31 | |
| Saga | 29 | -31 | -71 | -34 | 0 | 28 | 14 | -2 | 6 | -7 | -11 | -16 | -17 | |
| Nagasaki | 103 | 12 | -119 | -71 | 2 | 19 | 3 | -31 | -18 | -28 | -38 | -52 | -49 | |
| Kumamoto | 68 | -40 | -85 | -71 | 15 | 75 | 48 | 2 | 20 | -1 | -17 | -25 | -30 | |
| Oita | 24 | -37 | -53 | -31 | 34 | 39 | 21 | -13 | -6 | -10 | -11 | -13 | -30 | |
| Miyazaki | 48 | -4 | -54 | -30 | 34 | 67 | 24 | -7 | 7 | -6 | -17 | -18 | -31 | |
| Kagoshima | 240 | -81 | -109 | -125 | -5 | 61 | 34 | -21 | -4 | -8 | -33 | -47 | -57 | |
| Okinawa | -114 | 82 | 51 | 11 | 98 | 64 | 72 | 43 | 51 | 45 | 44 | 31 | 41 |
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