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@mbostock
Last active Feb 9, 2016
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Force-Directed Graph
license: gpl-3.0
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.link {
stroke: #000;
}
.node {
fill: #ccc;
stroke: #000;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var graph = {
nodes: d3.range(13).map(Object),
links: [
{source: 0, target: 1},
{source: 1, target: 2},
{source: 2, target: 0},
{source: 1, target: 3},
{source: 3, target: 2},
{source: 3, target: 4},
{source: 4, target: 5},
{source: 5, target: 6},
{source: 5, target: 7},
{source: 6, target: 7},
{source: 6, target: 8},
{source: 7, target: 8},
{source: 9, target: 4},
{source: 9, target: 11},
{source: 9, target: 10},
{source: 10, target: 11},
{source: 11, target: 12},
{source: 12, target: 10}
]
};
var width = 960,
height = 500;
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var force = d3.layout.force()
.nodes(graph.nodes)
.links(graph.links)
.size([width, height])
.charge(-200)
.on("tick", tick)
.start();
var link = svg.selectAll(".link")
.data(graph.links)
.enter().append("line")
.attr("class", "link");
var node = svg.selectAll(".node")
.data(graph.nodes)
.enter().append("circle")
.attr("class", "node")
.attr("r", 4.5);
function tick() {
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("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
}
</script>
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