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<meta charset="utf-8">
<style>
.link {
stroke: #777;
stroke-opacity: 0.3;
stroke-width: 1.5px;
}
.node circle {
fill: #ccc;
stroke: #000;
stroke-width: 1.5px;
}
.node text {
display: none;
font: 10px sans-serif;
}
.node:hover circle {
fill: #000;
}
.node:hover text {
display: inline;
}
.cell {
fill: none;
pointer-events: all;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var width = 960,
height = 500
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var force = d3.layout.force()
.gravity(0.1)
.charge(-120)
.linkDistance(30)
.size([width, height]);
var voronoi = d3.geom.voronoi()
.x(function(d) { return d.x; })
.y(function(d) { return d.y; })
.clipExtent([[0, 0], [width, height]]);
d3.json("readme.json", function(error, json) {
if (error) throw error;
force
.nodes(json.nodes)
.links(json.links)
.start();
var link = svg.selectAll(".link")
.data(json.links)
.enter().append("line")
.attr("class", "link");
var node = svg.selectAll(".node")
.data(json.nodes)
.enter().append("g")
.attr("class", "node")
.call(force.drag);
var circle = node.append("circle")
.attr("r", 4.5);
var label = node.append("text")
.attr("dy", ".35em")
.text(function(d) { return d.name; });
var cell = node.append("path")
.attr("class", "cell");
force.on("tick", function() {
cell
.data(voronoi(json.nodes))
.attr("d", function(d) { return d.length ? "M" + d.join("L") : null; });
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; });
circle
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
label
.attr("x", function(d) { return d.x + 8; })
.attr("y", function(d) { return d.y; });
});
});
</script>
https://d3js.org/d3.v3.min.js