- This is a example applying texture to a map. Textures are drawn by the SVG.
- テクスチャーを地図へ適用するサンプルです。テクスチャはSVGで描かれています。
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July 22, 2016 12:25
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Map With Texture
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>map with texture</title> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <script src="http://d3js.org/queue.v1.min.js" charset="utf-8"></script> | |
| <script src="http://d3js.org/topojson.v1.min.js" charset="utf-8"></script> | |
| <style> | |
| #map { | |
| width:960px; | |
| height:600px; | |
| margin: 0 auto; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="map"></div> | |
| <script> | |
| /* -------------------- | |
| Variables | |
| -------------------- */ | |
| var width = 960, | |
| height = 600; | |
| var projection = d3.geo.mercator() | |
| .scale(1700) | |
| .center([140.102364, 39.718614]); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var svg = d3.select("#map").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| /* -------------------- | |
| Texture | |
| -------------------- */ | |
| // Horizontal Lines | |
| svg | |
| .append('defs') | |
| .append('pattern') | |
| .attr('id', 'texture0') | |
| .attr('patternUnits', 'userSpaceOnUse') | |
| .attr('width', 6) | |
| .attr('height', 6) | |
| .append('path') | |
| .attr('d', 'M 0 0 L 0 10') | |
| .attr('stroke', '#3071B9') | |
| .attr('stroke-width', 2); | |
| // Dots | |
| svg | |
| .append('defs') | |
| .append('pattern') | |
| .attr('id', 'texture1') | |
| .attr('patternUnits', 'userSpaceOnUse') | |
| .attr('width', 5) | |
| .attr('height', 5) | |
| .append('circle') | |
| .attr('cx', 4) | |
| .attr('cy', 4) | |
| .attr('r', 1) | |
| .attr('fill', '#EA5532'); | |
| // Vertical Lines | |
| svg | |
| .append('defs') | |
| .append('pattern') | |
| .attr('id', 'texture2') | |
| .attr('patternUnits', 'userSpaceOnUse') | |
| .attr('width', 6) | |
| .attr('height', 6) | |
| .append('path') | |
| .attr('d', 'M 0 0 L 10 0') | |
| .attr('stroke', '#8FC31F') | |
| .attr('stroke-width', 2); | |
| // Cross Lines | |
| svg | |
| .append('defs') | |
| .append('pattern') | |
| .attr('id', 'texture3') | |
| .attr('patternUnits', 'userSpaceOnUse') | |
| .attr('width', 8) | |
| .attr('height', 8) | |
| .append('path') | |
| .attr('d', 'M0 0L8 8ZM8 0L0 8Z') | |
| .attr('stroke', '#C48AB2') | |
| .attr('stroke-width', 1); | |
| /* -------------------- | |
| Load external data | |
| -------------------- */ | |
| queue() | |
| .defer(d3.json, "japan.topojson") | |
| .await(loadReady); | |
| /* -------------------- | |
| Drawings | |
| -------------------- */ | |
| function loadReady(_error, _topojson) { | |
| if (_error){ console.log(_error); } | |
| var geometries = topojson.feature(_topojson, _topojson.objects.japan).features; | |
| var countries = svg.append("g").selectAll(".prefecture").data(geometries); | |
| countries | |
| .enter().insert("path") | |
| .attr("class", "prefecture") | |
| .attr("d", path) | |
| .style("stroke", "#333") | |
| .style("stroke-width", "0.2px") | |
| .attr('fill', function() { | |
| var _ran = Math.floor( Math.random() * 4 ); | |
| return 'url(#texture' + _ran + ')'; | |
| }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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