D3js try for elegant map out of OSM data.
Last active
August 23, 2017 04:24
Elegant map
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| <!DOCTYPE html> | |
| <head> | |
| <style> | |
| .landuse { | |
| fill: #efefef; | |
| } | |
| .roads { | |
| fill: none; | |
| stroke: #777; | |
| stroke-width: 0.3px; | |
| } | |
| .roads_residential { | |
| fill: none; | |
| stroke: #fff; | |
| stroke-width: 0.3px; | |
| } | |
| .roads_primary { | |
| fill: none; | |
| stroke: #555; | |
| stroke-width: 0.35px; | |
| } | |
| .roads_trunk { | |
| fill: none; | |
| stroke: #3b3b3b; | |
| stroke-width: 0.4px; | |
| } | |
| .water { | |
| fill: steelblue; | |
| fill-opacity: 0.3; | |
| } | |
| span:before { } | |
| </style> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://d3js.org/d3.geo.projection.v0.min.js"></script> | |
| <script src="http://d3js.org/topojson.v0.min.js"></script> | |
| </head> | |
| <body> | |
| <script> | |
| var width = 960, | |
| height = 700; | |
| var CSS = [ | |
| { "x": 30 , "y": 700-180, "class": "land_use"}, | |
| { "x": 30 , "y": 700-150, "class": "roads"}, | |
| { "x": 30 , "y": 700-120, "class": "roads_residential"}, | |
| { "x": 30 , "y": 700-90, "class": "roads_primary"}, | |
| { "x": 30 , "y": 700-60, "class": "roads_trunk"}, | |
| { "x": 30 , "y": 700-30, "class": "water"} | |
| ]; | |
| var projection = d3.geo.mercator() | |
| .translate([600, height/2]) | |
| .center([0.0, 51.4971]) | |
| .scale(150000); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var svg_g = svg.append("g"); | |
| d3.json('london.topo.json', function(err, data) { | |
| svg_g.append("path") | |
| .datum(topojson.object(data, data.objects.landuse)) | |
| .attr("class", "landuse") | |
| .attr("d", path); | |
| svg_g.append("path") | |
| .datum(topojson.object(data, data.objects.roads)) | |
| .attr("class", "roads") | |
| .attr("d", path); | |
| svg_g.append("path") | |
| .datum(topojson.object(data, data.objects.roads_residential)) | |
| .attr("class", "roads_residential") | |
| .attr("d", path); | |
| svg_g.append("path") | |
| .datum(topojson.object(data, data.objects.roads_primary)) | |
| .attr("class", "roads_primary") | |
| .attr("d", path); | |
| svg_g.append("path") | |
| .attr("class", "roads_trunk") | |
| .datum(topojson.object(data, data.objects.roads_truck)) | |
| .attr("d", path); | |
| svg_g | |
| .append("path") | |
| .datum(topojson.object(data, data.objects.waterway)) | |
| .attr("class", "water") | |
| .attr("d", path); | |
| svg_g.append("g") | |
| .attr("groupmode","layer") | |
| .attr({'id':'legend','label':'Legend'}) | |
| .selectAll("rect") | |
| .data(CSS) | |
| .enter() | |
| .append("rect") | |
| .attr("width", 20) | |
| .attr("height", 10) | |
| .attr("x", function (d) { return d.x; }) | |
| .attr("y", function (d) { return d.y; }) | |
| .attr("class", function (d) { return d.class; }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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