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Exploding globe in D3
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> | |
| <title>Exploding world</title> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://libs.cartocdn.com/cartodb.js/v2/cartodb.js"></script> | |
| <style type="text/css"> | |
| body{ | |
| background:white; | |
| } | |
| svg { | |
| width: 960px; | |
| height: 500px; | |
| background: #4a8dcb; | |
| } | |
| svg:active { | |
| cursor: move; | |
| cursor: -moz-grabbing; | |
| cursor: -webkit-grabbing; | |
| } | |
| .globe { | |
| fill: #4a8dcb; | |
| } | |
| #first_layer path { | |
| fill-opacity:0.8; | |
| fill: #222; | |
| stroke: #ddd; | |
| stroke-width:0.5px; | |
| stroke-linecap: round; | |
| stroke-linejoin: round; | |
| } | |
| #second_layer circle { | |
| cursor: pointer; | |
| fill-opacity:1; | |
| fill: white; | |
| stroke-width:0.1px; | |
| stroke:black; | |
| stroke-linecap: round; | |
| stroke-linejoin: round; | |
| } | |
| .halo { | |
| font-weight: 700; | |
| fill: none; | |
| stroke: white; | |
| stroke-width:4px; | |
| font-size: 14px; | |
| } | |
| .text { | |
| font-weight: 700; | |
| fill: #777; | |
| stroke: none; | |
| stroke-width:0px; | |
| font-size: 14px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script type="text/javascript"> | |
| var first_layer = 'd3_world_borders'; | |
| var second_layer = 'd3_populated_places'; | |
| var sql = new cartodb.SQL({ user: 'viz2', format: 'geojson', dp: 5}); | |
| // Define our SVG element outside our SQL functions | |
| var svg = d3.select("body") | |
| .append("svg") | |
| .call(d3.behavior.zoom() | |
| .on("zoom", redraw)) | |
| .append("g"); | |
| // Our projection. | |
| var xy = d3.geo.orthographic(); | |
| var force = d3.layout.force().size([960,500]); | |
| svg.append("g").attr("id", "first_layer"); | |
| svg.append("g").attr("id", "second_layer"); | |
| var path = d3.geo.path() | |
| .projection(xy) | |
| sql.execute("SELECT ST_Simplify(the_geom,0.001) as the_geom FROM {{table_name}} WHERE the_geom IS NOT NULL", {table_name: first_layer}) | |
| .done(function(collection) { | |
| var nodes = [], | |
| links = []; | |
| collection.features.forEach(function(d, i) { | |
| //if (d.id == "02" || d.id == "15" || d.id == "72") return; // lower 48 | |
| var centroid = path.centroid(d); | |
| centroid.x = centroid[0]; | |
| centroid.y = centroid[1]; | |
| centroid.feature = d; | |
| nodes.push(centroid); | |
| }); | |
| force | |
| .gravity(0.01) | |
| .nodes(nodes) | |
| .start(); | |
| var node = svg.selectAll("g") | |
| .data(nodes) | |
| .enter().append("svg:g") | |
| .attr("transform", function(d) { return "translate(" + -d.x + "," + -d.y + ")"; }) | |
| .call(force.drag) | |
| // .call(drag) | |
| .append("svg:path") | |
| .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; }) | |
| .attr("d", function(d) { return path(d.feature); }); | |
| function tick() { | |
| node.attr("transform", function(d) { | |
| return "translate(" + d.x + "," + d.y + ")"; | |
| }) | |
| .attr("d", function(d) { return path(d.feature); | |
| }); | |
| }; | |
| force.on("tick", tick); | |
| }) | |
| .error(function(errors) { | |
| // console.log('Errors! Oh no!') | |
| }); | |
| function redraw() { | |
| svg.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")"); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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