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February 8, 2018 12:10
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Add a basemap in D3.js
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta http-equiv="x-ua-compatible" content="ie=edge"> | |
| <title>Maps in D3js</title> | |
| <meta name="description" content="Maps in d3js"> | |
| <meta name="author" content="Edward Mac Gillavry"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui"> | |
| <meta name="apple-mobile-web-app-capable" content="yes"> | |
| <meta name="apple-mobile-web-app-status-bar-style" content="black"> | |
| <meta name="apple-mobile-web-app-title" content="d3js"> | |
| <link rel="shortcut icon" href=""> | |
| <style> | |
| body { | |
| background-color: #fffaf5; | |
| } | |
| svg { | |
| background-color: #fffaf5; | |
| } | |
| .gemeente { | |
| fill: #ccc; | |
| stroke-width: 0.4; | |
| stroke: #fff; | |
| } | |
| .quakes { | |
| fill: #317581; | |
| fill-opacity: 0.6; | |
| stroke-width: 0.7; | |
| stroke: #fff; | |
| } | |
| .induced { | |
| fill: #EA9657; | |
| } | |
| .tectonic{ | |
| fill: #35495D; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://d3js.org/topojson.v1.min.js"></script> | |
| <script src="https://d3js.org/d3-tile.v0.0.min.js"></script> | |
| <script> | |
| let width = 450, | |
| height = 600, | |
| svg = d3.select("body") | |
| .append("svg") | |
| .attr('width', width) | |
| .attr('height', height), | |
| tau = 2 * Math.PI; | |
| d3.queue() | |
| .defer(d3.json, "gemeenten2017.topojson") | |
| .defer(d3.json, "aardbevingen_NL.geojson") | |
| .await(ready); | |
| function ready(error, municipalities,earthquakes){ | |
| if (error) throw error; | |
| let gemeenten = topojson.feature(municipalities, municipalities.objects.municipalities); | |
| earthquakes.features.sort(function(a, b) { return b.properties.MAG - a.properties.MAG; }); | |
| let projection = d3.geoMercator() | |
| .fitSize([width, height], gemeenten); | |
| let path = d3.geoPath() | |
| .projection(projection); | |
| let tiles = d3.tile() | |
| .size([width, height]) | |
| .scale(projection.scale() * tau) | |
| .translate(projection([0, 0])) | |
| (); | |
| svg.selectAll("image") | |
| .data(tiles) | |
| .enter().append("image") | |
| .attr("xlink:href", function(d) { return "https://geodata.nationaalgeoregister.nl/tiles/service/wmts/brtachtergrondkaartgrijs/EPSG:3857/" + d[2] + "/" + d[0] + "/" + d[1] + ".png"; }) | |
| .attr("x", function(d) { return (d[0] + tiles.translate[0]) * tiles.scale; }) | |
| .attr("y", function(d) { return (d[1] + tiles.translate[1]) * tiles.scale; }) | |
| .attr("width", tiles.scale) | |
| .attr("height", tiles.scale); | |
| svg.append("g") | |
| .selectAll("path") | |
| .data(gemeenten.features) | |
| .enter() | |
| .append("path") | |
| .attr("class","gemeente") | |
| .attr("d", path) | |
| .append("title") | |
| .text(function(d) { return d.properties.name}); | |
| svg.selectAll(".quakes") | |
| .data(earthquakes.features) | |
| .enter() | |
| .append("path") | |
| .attr("d", path.pointRadius(function(d) { | |
| return 2.5*Math.sqrt((Math.exp(parseFloat(d.properties.MAG)))); | |
| })) | |
| .attr("class",function(d) { | |
| return d.properties.TYPE == "ind" ? "quakes induced" : "quakes tectonic"; | |
| }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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