US Road Map (data from natural earth).
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December 16, 2021 16:22
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US Road Map
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .roads { | |
| fill: none; | |
| stroke-linejoin: round; | |
| stroke-linecap: round; | |
| } | |
| .major-highway { stroke: #525252; stroke-width: 1.5px; } | |
| .secondary-highway { stroke: #737373; } | |
| .road { stroke: #bdbdbd; } | |
| .beltway { stroke: #737373; } | |
| .ferry-route { stroke: #4393c3; stroke-width: 1.5px; } | |
| </style> | |
| <body> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 600; | |
| var projection = d3.geo.albersUsa() | |
| .scale(1100) | |
| .translate([width / 2, height / 2]); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| d3.json("usroads.json", function(error, usroads) { | |
| if (error) throw error; | |
| svg.append("g") | |
| .selectAll("path") | |
| .data(topojson.feature(usroads, usroads.objects.usa).features) | |
| .enter().append("path") | |
| .attr("d", path) | |
| .style("fill","none") | |
| .style("stroke","#252525") | |
| .style("stroke-width",1); | |
| svg.append("g") | |
| .selectAll("path") | |
| .data(topojson.feature(usroads, usroads.objects.roads).features) | |
| .enter().append("path") | |
| .attr("d", path) | |
| .attr("class",function(d) { return "roads " + d.properties.type.toLowerCase().split(' ').join('-'); }); | |
| }); | |
| d3.select(self.frameElement).style("height", height + "px"); | |
| </script> |
ogr2ogr
-f GeoJSON
-where "ADM0_A3 IN ('USA')"
usa.json
ne_10m_admin_0_countries.shp
ogr2ogr
-f GeoJSON
-where "sov_a3 IN ('USA')"
roads.json
ne_10m_roads.shp
topojson
-o usroads.json
--id-property sov_a3
--properties type
--
usa.json
roads.json
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