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Radial Arc Diagram
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| license: gpl-3.0 |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| circle { | |
| fill: #000; | |
| stroke: #fff; | |
| stroke-width: 2px; | |
| } | |
| path { | |
| fill: none; | |
| stroke: #999; | |
| stroke-width: 1.5px; | |
| } | |
| text { | |
| font: bold 10px sans-serif; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 500, | |
| radius = 240; | |
| var angle = d3.scale.ordinal() | |
| .rangePoints([0, 360], 1); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
| d3.json("network.json", function(error, nodes) { | |
| if (error) throw error; | |
| var nodeByName = d3.map(), | |
| links = []; | |
| nodes.forEach(function(d) { nodeByName.set(d.name, d); }); | |
| nodes.forEach(function(source) { | |
| source.connections.forEach(function(target) { | |
| links.push({source: source, target: nodeByName.get(target)}); | |
| }); | |
| }); | |
| angle.domain(nodes.map(function(d) { return d.name; })); | |
| var link = svg.append("g") | |
| .attr("class", "links") | |
| .selectAll("path") | |
| .data(links) | |
| .enter().append("path") | |
| .attr("d", curve); | |
| var node = svg.append("g") | |
| .attr("class", "nodes") | |
| .selectAll("g") | |
| .data(nodes) | |
| .enter().append("g") | |
| .attr("transform", function(d) { return "rotate(" + angle(d.name) + ")translate(" + radius + ",0)"; }); | |
| node.append("circle") | |
| .attr("r", 5); | |
| node.append("text") | |
| .attr("dy", ".35em") | |
| .attr("x", 6) | |
| .text(function(d) { return d.name; }) | |
| .filter(function(d) { return (angle(d.name) + 90) % 360 > 180; }) // flipped | |
| .attr("x", -6) | |
| .attr("transform", "rotate(-180)") | |
| .style("text-anchor", "end"); | |
| }); | |
| function curve(link) { | |
| var a0 = angle(link.source.name) / 180 * Math.PI, | |
| a1 = angle(link.target.name) / 180 * Math.PI, | |
| x0 = Math.cos(a0) * radius, y0 = Math.sin(a0) * radius, | |
| x1 = Math.cos(a1) * radius, y1 = Math.sin(a1) * radius, | |
| dx = x0 - x1, | |
| dy = y0 - y1, | |
| l = Math.sqrt(dx * dx + dy * dy); | |
| return "M" + x0 + "," + y0 | |
| + "A" + l * 2 + "," + l * 2 + " 0 0 1 " | |
| + x1 + "," + y1; | |
| } | |
| </script> |
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| [ | |
| {"name": "Bob", "connections": ["Jane", "Tom", "Sue"]}, | |
| {"name": "Jane", "connections": ["Bob", "Sue"]}, | |
| {"name": "Sue", "connections": ["Tom", "Bob", "Jane", "Tom"]}, | |
| {"name": "Tom", "connections": []} | |
| ] |
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