| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Testing map labels</title> | |
| <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.v1.min.js"></script> | |
| <style> | |
| body { | |
| font-family: 'Source Sans Pro', Arial, Helvetica, sans-serif; | |
| font-size: 62.5%; | |
| } | |
| path { | |
| stroke-linejoin: round; | |
| } | |
| .land-glow { | |
| fill-opacity: .2; | |
| filter: url(#blur); | |
| fill: #1e1e1e; | |
| } | |
| .land-fill { | |
| fill-opacity: 0; | |
| stroke: rgb(70, 70, 70); | |
| stroke-width: .35px; | |
| } | |
| .region { | |
| stroke: rgb(70, 70, 70); | |
| stroke-width: 0.01rem; | |
| } | |
| .label-bg { | |
| pointer-events: none; | |
| text-anchor: middle; | |
| fill: none; | |
| stroke: white; | |
| font-size: 0.9rem; | |
| stroke-width: 0.2rem; | |
| opacity: 0.9; | |
| } | |
| .label { | |
| z-index: 10; | |
| pointer-events: none; | |
| text-anchor: middle; | |
| font-size: 0.9rem; | |
| text-shadow: 0 0 3px #fff; | |
| fill: rgb(70, 70, 70); | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script type="text/javascript"> | |
| var width = 960, | |
| height = 600; | |
| var path = d3.geo.path() | |
| .projection(d3.geo.robinson() | |
| .scale(2700) | |
| .center([3.582022, 40.9582426]) | |
| .translate([width / 7, height / 1.8])); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append('g'); | |
| var defs = svg.append("defs"); | |
| defs.append("filter") | |
| .attr("id", "blur") | |
| .append("feGaussianBlur") | |
| .attr("stdDeviation", 5); | |
| d3.json("italy.json", function(error, italy) { | |
| var map = topojson.feature(italy, italy.objects.reg2011); | |
| defs.append("path") | |
| .datum(map) | |
| .attr("id", "land") | |
| .attr("d", path); | |
| svg.append("use") | |
| .attr("class", "land-glow") | |
| .attr("xlink:href", "#land"); | |
| svg.append("use") | |
| .attr("class", "land-fill") | |
| .attr("xlink:href", "#land"); | |
| var color = d3.scale.quantize() | |
| .domain(d3.extent(map.features, function(d) { | |
| return d.properties.SHAPE_Leng; | |
| })) | |
| .range(["#fff7fb", "#ece7f2", "#d0d1e6", "#a6bddb", "#74a9cf"]); | |
| var region = svg.append("g").attr("class", "polygons"); | |
| region.selectAll(".region").data(map.features) | |
| .enter().insert("path") | |
| .attr("class", "region") | |
| .attr("d", path) | |
| .style("fill", function(d, i) { | |
| return color(d.properties.SHAPE_Leng); | |
| }); | |
| var labelsBg = svg.append("g").attr("class", "label-group-bg"); | |
| labelsBg.selectAll(".label-bg") | |
| .data(map.features) | |
| .enter() | |
| .append("text") | |
| .attr("class", "label-bg") | |
| .attr("x", function(d) { | |
| return path.centroid(d)[0]; | |
| }) | |
| .attr("y", function(d) { | |
| return path.centroid(d)[1]; | |
| }) | |
| .text(function(d) { | |
| return d.properties.NOME_REG; | |
| }); | |
| var labels = svg.append("g").attr("class", "label-group"); | |
| labels.selectAll(".label") | |
| .data(map.features) | |
| .enter() | |
| .append("text") | |
| .attr("class", "label") | |
| .attr("x", function(d) { | |
| return path.centroid(d)[0]; | |
| }) | |
| .attr("y", function(d) { | |
| return path.centroid(d)[1]; | |
| }) | |
| .text(function(d) { | |
| return d.properties.NOME_REG; | |
| }); | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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