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d3mind
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| license: mit |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .links line { | |
| stroke: #999; | |
| stroke-opacity: 0.6; | |
| } | |
| .nodes rect { | |
| stroke: #fff; | |
| stroke-width: 1.5px; | |
| } | |
| </style> | |
| <svg width="960" height="600"></svg> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var svg = d3.select("svg"), | |
| width = +svg.attr("width"), | |
| height = +svg.attr("height"); | |
| var color = d3.scaleOrdinal(d3.schemeCategory20); | |
| var simulation = d3.forceSimulation() | |
| .force("link", d3.forceLink().id(function(d) { return d.id; }).distance(150)) | |
| .force("charge", d3.forceManyBody().strength(function(d) { return -30*d.group })) | |
| .force("center", d3.forceCenter(width / 2, height / 2)); | |
| d3.json("mindmap.json", function(error, graph) { | |
| if (error) throw error; | |
| // Update links | |
| var link = svg.append("g") | |
| .attr("class", "links") | |
| .selectAll("line") | |
| .data(graph.links) | |
| .enter().append("line") | |
| .attr("stroke-width", function(d) { return Math.sqrt(d.value); }); | |
| // Update nodes | |
| var node = svg.append("g") | |
| .attr("class", "nodes") | |
| .selectAll("circle") | |
| .data(graph.nodes) | |
| .enter().append("rect") | |
| .attr("width", 100) | |
| .attr("height", 50) | |
| .attr("rx", 5) | |
| .attr("fill", function(d) { return color(d.group); }) | |
| .call(d3.drag() | |
| .on("start", dragstarted) | |
| .on("drag", dragged) | |
| .on("end", dragended)); | |
| // Set node titles | |
| node.append("title") | |
| .text(function(d) { return d.id; }); | |
| // Simulate nodes | |
| simulation | |
| .nodes(graph.nodes) | |
| .on("tick", ticked); | |
| // Simulate links | |
| simulation.force("link") | |
| .links(graph.links); | |
| function ticked() { | |
| link | |
| .attr("x1", function(d) { return d.source.x; }) | |
| .attr("y1", function(d) { return d.source.y; }) | |
| .attr("x2", function(d) { return d.target.x; }) | |
| .attr("y2", function(d) { return d.target.y; }); | |
| node | |
| .attr("x", function(d) { return d.x - 50; }) | |
| .attr("y", function(d) { return d.y - 25; }); | |
| } | |
| }); | |
| function dragstarted(d) { | |
| if (!d3.event.active) simulation.alphaTarget(0.3).restart(); | |
| d.fx = d.x; | |
| d.fy = d.y; | |
| } | |
| function dragged(d) { | |
| d.fx = d3.event.x; | |
| d.fy = d3.event.y; | |
| } | |
| function dragended(d) { | |
| if (!d3.event.active) simulation.alphaTarget(0); | |
| d.fx = null; | |
| d.fy = null; | |
| } | |
| </script> |
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| { | |
| "nodes": [ | |
| {"id": "Myriel", "group": 1}, | |
| {"id": "Napoleon", "group": 2}, | |
| {"id": "Mlle.Baptistine", "group": 2}, | |
| {"id": "Mme.Magloire", "group": 2}, | |
| {"id": "CountessdeLo", "group": 3}, | |
| {"id": "Geborand", "group": 3}, | |
| {"id": "Champtercier", "group": 3}, | |
| {"id": "Cravatte", "group": 3}, | |
| {"id": "Count", "group": 3}, | |
| {"id": "OldMan", "group": 3} | |
| ], | |
| "links": [ | |
| {"source": "Myriel", "target": "Napoleon", "value": 1}, | |
| {"source": "Myriel", "target": "Mlle.Baptistine", "value": 1}, | |
| {"source": "Myriel", "target": "Mme.Magloire", "value": 1}, | |
| {"source": "Napoleon", "target": "CountessdeLo", "value": 1}, | |
| {"source": "Napoleon", "target": "Geborand", "value": 1}, | |
| {"source": "Mlle.Baptistine", "target": "Champtercier", "value": 1}, | |
| {"source": "Mlle.Baptistine", "target": "Cravatte", "value": 1}, | |
| {"source": "Mme.Magloire", "target": "Count", "value": 1}, | |
| {"source": "Mme.Magloire", "target": "OldMan", "value": 1} | |
| ] | |
| } |
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