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Last active March 28, 2018 03:05
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D3.js v4 Force Directed Graph with Labels
license: gpl-3.0
height: 600

A quick adaptation of Mike Bostock's force-directed graph showing character co-occurence in Les Misérables. In this version, the character names are displayed. This is accomplished by wrapping both circles and text svg components within a group svg component.

Compare to the original diagram by Mike Bostock.

forked from heybignick's block: D3.js v4 Force Directed Graph with Labels

<!DOCTYPE html>
<meta charset="utf-8">
.links line {
stroke: #999;
stroke-opacity: 0.6;
.nodes circle {
stroke: #fff;
stroke-width: 1.5px;
text {
font-family: sans-serif;
font-size: 10px;
<script type="text/javascript" language="javascript" src="miserables.json"></script>
<button type="button" name="Location">Location</button>
<svg width="960" height="600"></svg>
<script src=""></script>
var svg ="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; }))
.force("charge", d3.forceManyBody())
.force("center", d3.forceCenter(width / 2, height / 2));
d3.json("miserables.json", function(error, graph) {
if (error) throw error;
var link = svg.append("g")
.attr("class", "links")
.attr("stroke-width", function(d) { return Math.sqrt(d.value); });
var node = svg.append("g")
.attr("class", "nodes")
var circles = node.append("circle")
.attr("r", 5)
.attr("fill", function(d) { return color(; })
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended));
var lables = node.append("text")
.text(function(d) {
.attr('x', 6)
.attr('y', 3);
.text(function(d) { return; });
.on("tick", ticked);
function ticked() {
.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return; })
.attr("y2", function(d) { return; });
.attr("transform", function(d) {
return "translate(" + d.x + "," + d.y + ")";
function dragstarted(d) {
if (! 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 (! simulation.alphaTarget(0);
d.fx = null;
d.fy = null;
"nodes": [
{"sortBy": "Location", "id": "site"},
{"sortBy": "Location", "id": "C"},
{"sortBy": "Location", "id": "Building"},
{"sortBy": "Location", "id": "D"},
{"sortBy": "Location", "id": "Area"},
{"sortBy": "Location", "id": "Device"}
"links": [
{"source": "site", "target": "C", "value": 1},
{"source": "site", "target": "Building", "value": 1},
{"source": "site", "target": "D", "value": 1},
{"source": "Building", "target": "Area", "value": 1},
{"source": "Area", "target": "Device", "value": 1}
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