A very basic example of reandering Japan Atlas TopoJSON with D3.
Source: MLIT, 2017
Last active
July 15, 2017 06:53
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A simple map with Japan Atlas TopoJSON
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| <!DOCTYPE html> | |
| <style> | |
| .city { | |
| fill: #888; | |
| stroke: #eee; | |
| stroke-width: 0.08; | |
| stroke-dasharray: 2,2; | |
| } | |
| </style> | |
| <svg width="800" height="640"></svg> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://d3js.org/topojson.v2.min.js"></script> | |
| <script src="https://unpkg.com/d3-composite-projections@1.2.0"></script> | |
| <script> | |
| var svg = d3.select('svg'); | |
| var projection = d3.geoConicEquidistantJapan(); | |
| var path = d3.geoPath() | |
| .projection(projection); | |
| d3.json('japan-2017-topo.low.json', function(error, jp) { | |
| if (error) throw error; | |
| svg.append('path') | |
| .datum(topojson.feature(jp, jp.objects.cities)) | |
| .attr('class', 'city') | |
| .attr('d', path); | |
| svg.append('path') | |
| .style('fill', 'none') | |
| .style('stroke', '#ddd') | |
| .style('stroke-width', '0.5px') | |
| .attr('d', projection.getCompositionBorders()); | |
| }); | |
| </script> |
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