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D3 map training
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| <html> | |
| <head> | |
| <style> | |
| path { | |
| stroke: white; | |
| stroke-width: .1px | |
| } | |
| #loading { | |
| font-family: Verdana; | |
| font-size: 72px | |
| } | |
| text.city { | |
| font-family: Verdana; | |
| font-size: 10px | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src='//d3js.org/d3.v3.js'></script> | |
| <script src='//d3js.org/topojson.v1.js'></script> | |
| <script src='//d3js.org/queue.v1.js'></script> | |
| <script src='//d3js.org/colorbrewer.v1.js'></script> | |
| <script> | |
| var width = 960, | |
| height = 500; | |
| var svg = d3.select('body').append('svg') | |
| .attr('width', width) | |
| .attr('height', height); | |
| svg.append('text') | |
| .attr('id', 'loading') | |
| .attr('x', 100) | |
| .attr('y', 100) | |
| .text('Loading...'); | |
| var projection = d3.geo.albers() | |
| .rotate([-105, 0]) | |
| .center([-10, 65]) | |
| .parallels([52, 64]) | |
| .scale(720) | |
| .translate([width / 2, height / 2]); | |
| queue() | |
| .defer(d3.json, '//nemetz.devg.ru/d3/russia_1e-7sr.json') | |
| .defer(d3.csv, '//nemetz.devg.ru/d3/Accidents.csv') | |
| .defer(d3.tsv, '//nemetz.devg.ru/d3/cities.tsv') | |
| .await(ready); | |
| function ready(error, map, data, cities) { | |
| d3.select('#loading').remove(); | |
| var color = d3.scale.linear() | |
| .domain(d3.extent(data, function (d) { return d.Deaths })) | |
| //.domain([0, 50, 150, 350, 750, 7500]) | |
| .range(colorbrewer['YlOrRd'][8]); | |
| var rateById = {}; | |
| data.forEach(function (d) { rateById[d.RegionCode] = +d.Deaths }); | |
| var path = d3.geo.path().projection(projection); | |
| svg.append('g') | |
| .attr('class', 'region') | |
| .selectAll('path') | |
| .data(topojson.feature(map, map.objects.russia).features) | |
| .enter().append('path') | |
| .attr('d', path) | |
| .attr('fill', function (d) { | |
| return color(rateById[d.properties.region]) | |
| }) | |
| .on('mouseover', function (d, i) { | |
| var reg = d3.select(this).datum().properties.region; | |
| d3.selectAll('.region path') | |
| .attr('fill', function (d, i) { | |
| return d.properties.region == reg ? 'gray' : color(rateById[d.properties.region]) | |
| }); | |
| }) | |
| .on('mouseout', function (d, i) { | |
| d3.selectAll('.region path') | |
| .attr('fill', function (d, i) { | |
| return color(rateById[d.properties.region]) | |
| }); | |
| }); | |
| var city = svg.selectAll('g.city') | |
| .data(cities) | |
| .enter() | |
| .append('g') | |
| .attr('class', 'city') | |
| .attr('transform', function (d) { return 'translate(' + projection([d.lon, d.lat]) + ')' }); | |
| city.append('circle') | |
| .attr('r', 5) | |
| .attr('stroke', 'white') | |
| .attr('fill', 'none') | |
| .attr('opacity', .7) | |
| .attr('stroke-width', 3); | |
| city.append('text') | |
| .attr('class', 'city') | |
| .attr('x', 5) | |
| .attr('y', -5) | |
| //.attr('text-anchor', 'middle') | |
| .attr('stroke', 'white') | |
| .attr('fill', 'none') | |
| .attr('opacity', .7) | |
| .attr('stroke-width', 3) | |
| .text(function (d) { return d.City }); | |
| city.append('text') | |
| .attr('class', 'city') | |
| .attr('x', 5) | |
| .attr('y', -5) | |
| //.attr('text-anchor', 'middle') | |
| .attr('fill', '#333') | |
| .text(function (d) { return d.City }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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