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demo.html
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<!DOCTYPE html>
<html>
<head>
<title>Clustered Network</title>
<script src="https://d3js.org/d3.v2.js"></script>
<style type="text/css">
svg {
border: 1px solid #ccc;
}
body {
font: 10px sans-serif;
}
circle.node {
fill: lightsteelblue;
stroke: #555;
stroke-width: 3px;
}
circle.leaf {
stroke: #fff;
stroke-width: 1.5px;
}
path.hull {
fill: lightsteelblue;
fill-opacity: 0.3;
}
line.link {
stroke: #333;
stroke-opacity: 0.5;
pointer-events: none;
}
</style>
</head>
<body>
<script type="text/javascript">
var json = { "nodes": [{ "name": "Myriel", "group": 1 }, { "name": "Napoleon", "group": 1 }, { "name": "Mlle.Baptistine", "group": 1 }, { "name": "Mme.Magloire", "group": 1 }, { "name": "CountessdeLo", "group": 1 }, { "name": "Geborand", "group": 1 }, { "name": "Champtercier", "group": 1 }, { "name": "Cravatte", "group": 1 }, { "name": "Count", "group": 1 }, { "name": "OldMan", "group": 1 }, { "name": "Labarre", "group": 2 }, { "name": "Valjean", "group": 2 }, { "name": "Marguerite", "group": 3 }, { "name": "Mme.deR", "group": 2 }, { "name": "Isabeau", "group": 2 }, { "name": "Gervais", "group": 2 }, { "name": "Tholomyes", "group": 3 }, { "name": "Listolier", "group": 3 }, { "name": "Fameuil", "group": 3 }, { "name": "Blacheville", "group": 3 }, { "name": "Favourite", "group": 3 }, { "name": "Dahlia", "group": 3 }, { "name": "Zephine", "group": 3 }, { "name": "Fantine", "group": 3 }, { "name": "Mme.Thenardier", "group": 4 }, { "name": "Thenardier", "group": 4 }, { "name": "Cosette", "group": 5 }, { "name": "Javert", "group": 4 }, { "name": "Fauchelevent", "group": 0 }, { "name": "Bamatabois", "group": 2 }, { "name": "Perpetue", "group": 3 }, { "name": "Simplice", "group": 2 }, { "name": "Scaufflaire", "group": 2 }, { "name": "Woman1", "group": 2 }, { "name": "Judge", "group": 2 }, { "name": "Champmathieu", "group": 2 }, { "name": "Brevet", "group": 2 }, { "name": "Chenildieu", "group": 2 }, { "name": "Cochepaille", "group": 2 }, { "name": "Pontmercy", "group": 4 }, { "name": "Boulatruelle", "group": 6 }, { "name": "Eponine", "group": 4 }, { "name": "Anzelma", "group": 4 }, { "name": "Woman2", "group": 5 }, { "name": "MotherInnocent", "group": 0 }, { "name": "Gribier", "group": 0 }, { "name": "Jondrette", "group": 7 }, { "name": "Mme.Burgon", "group": 7 }, { "name": "Gavroche", "group": 8 }, { "name": "Gillenormand", "group": 5 }, { "name": "Magnon", "group": 5 }, { "name": "Mlle.Gillenormand", "group": 5 }, { "name": "Mme.Pontmercy", "group": 5 }, { "name": "Mlle.Vaubois", "group": 5 }, { "name": "Lt.Gillenormand", "group": 5 }, { "name": "Marius", "group": 8 }, { "name": "BaronessT", "group": 5 }, { "name": "Mabeuf", "group": 8 }, { "name": "Enjolras", "group": 8 }, { "name": "Combeferre", "group": 8 }, { "name": "Prouvaire", "group": 8 }, { "name": "Feuilly", "group": 8 }, { "name": "Courfeyrac", "group": 8 }, { "name": "Bahorel", "group": 8 }, { "name": "Bossuet", "group": 8 }, { "name": "Joly", "group": 8 }, { "name": "Grantaire", "group": 8 }, { "name": "MotherPlutarch", "group": 9 }, { "name": "Gueulemer", "group": 4 }, { "name": "Babet", "group": 4 }, { "name": "Claquesous", "group": 4 }, { "name": "Montparnasse", "group": 4 }, { "name": "Toussaint", "group": 5 }, { "name": "Child1", "group": 10 }, { "name": "Child2", "group": 10 }, { "name": "Brujon", "group": 4 }, { "name": "Mme.Hucheloup", "group": 8 }], "links": [{ "source": 1, "target": 0, "value": 1 }, { "source": 2, "target": 0, "value": 8 }, { "source": 3, "target": 0, "value": 10 }, { "source": 3, "target": 2, "value": 6 }, { "source": 4, "target": 0, "value": 1 }, { "source": 5, "target": 0, "value": 1 }, { "source": 6, "target": 0, "value": 1 }, { "source": 7, "target": 0, "value": 1 }, { "source": 8, "target": 0, "value": 2 }, { "source": 9, "target": 0, "value": 1 }, { "source": 11, "target": 10, "value": 1 }, { "source": 11, "target": 3, "value": 3 }, { "source": 11, "target": 2, "value": 3 }, { "source": 11, "target": 0, "value": 5 }, { "source": 12, "target": 11, "value": 1 }, { "source": 13, "target": 11, "value": 1 }, { "source": 14, "target": 11, "value": 1 }, { "source": 15, "target": 11, "value": 1 }, { "source": 17, "target": 16, "value": 4 }, { "source": 18, "target": 16, "value": 4 }, { "source": 18, "target": 17, "value": 4 }, { "source": 19, "target": 16, "value": 4 }, { "source": 19, "target": 17, "value": 4 }, { "source": 19, "target": 18, "value": 4 }, { "source": 20, "target": 16, "value": 3 }, { "source": 20, "target": 17, "value": 3 }, { "source": 20, "target": 18, "value": 3 }, { "source": 20, "target": 19, "value": 4 }, { "source": 21, "target": 16, "value": 3 }, { "source": 21, "target": 17, "value": 3 }, { "source": 21, "target": 18, "value": 3 }, { "source": 21, "target": 19, "value": 3 }, { "source": 21, "target": 20, "value": 5 }, { "source": 22, "target": 16, "value": 3 }, { "source": 22, "target": 17, "value": 3 }, { "source": 22, "target": 18, "value": 3 }, { "source": 22, "target": 19, "value": 3 }, { "source": 22, "target": 20, "value": 4 }, { "source": 22, "target": 21, "value": 4 }, { "source": 23, "target": 16, "value": 3 }, { "source": 23, "target": 17, "value": 3 }, { "source": 23, "target": 18, "value": 3 }, { "source": 23, "target": 19, "value": 3 }, { "source": 23, "target": 20, "value": 4 }, { "source": 23, "target": 21, "value": 4 }, { "source": 23, "target": 22, "value": 4 }, { "source": 23, "target": 12, "value": 2 }, { "source": 23, "target": 11, "value": 9 }, { "source": 24, "target": 23, "value": 2 }, { "source": 24, "target": 11, "value": 7 }, { "source": 25, "target": 24, "value": 13 }, { "source": 25, "target": 23, "value": 1 }, { "source": 25, "target": 11, "value": 12 }, { "source": 26, "target": 24, "value": 4 }, { "source": 26, "target": 11, "value": 31 }, { "source": 26, "target": 16, "value": 1 }, { "source": 26, "target": 25, "value": 1 }, { "source": 27, "target": 11, "value": 17 }, { "source": 27, "target": 23, "value": 5 }, { "source": 27, "target": 25, "value": 5 }, { "source": 27, "target": 24, "value": 1 }, { "source": 27, "target": 26, "value": 1 }, { "source": 28, "target": 11, "value": 8 }, { "source": 28, "target": 27, "value": 1 }, { "source": 29, "target": 23, "value": 1 }, { "source": 29, "target": 27, "value": 1 }, { "source": 29, "target": 11, "value": 2 }, { "source": 30, "target": 23, "value": 1 }, { "source": 31, "target": 30, "value": 2 }, { "source": 31, "target": 11, "value": 3 }, { "source": 31, "target": 23, "value": 2 }, { "source": 31, "target": 27, "value": 1 }, { "source": 32, "target": 11, "value": 1 }, { "source": 33, "target": 11, "value": 2 }, { "source": 33, "target": 27, "value": 1 }, { "source": 34, "target": 11, "value": 3 }, { "source": 34, "target": 29, "value": 2 }, { "source": 35, "target": 11, "value": 3 }, { "source": 35, "target": 34, "value": 3 }, { "source": 35, "target": 29, "value": 2 }, { "source": 36, "target": 34, "value": 2 }, { "source": 36, "target": 35, "value": 2 }, { "source": 36, "target": 11, "value": 2 }, { "source": 36, "target": 29, "value": 1 }, { "source": 37, "target": 34, "value": 2 }, { "source": 37, "target": 35, "value": 2 }, { "source": 37, "target": 36, "value": 2 }, { "source": 37, "target": 11, "value": 2 }, { "source": 37, "target": 29, "value": 1 }, { "source": 38, "target": 34, "value": 2 }, { "source": 38, "target": 35, "value": 2 }, { "source": 38, "target": 36, "value": 2 }, { "source": 38, "target": 37, "value": 2 }, { "source": 38, "target": 11, 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"source": 57, "target": 41, "value": 1 }, { "source": 57, "target": 48, "value": 1 }, { "source": 58, "target": 55, "value": 7 }, { "source": 58, "target": 48, "value": 7 }, { "source": 58, "target": 27, "value": 6 }, { "source": 58, "target": 57, "value": 1 }, { "source": 58, "target": 11, "value": 4 }, { "source": 59, "target": 58, "value": 15 }, { "source": 59, "target": 55, "value": 5 }, { "source": 59, "target": 48, "value": 6 }, { "source": 59, "target": 57, "value": 2 }, { "source": 60, "target": 48, "value": 1 }, { "source": 60, "target": 58, "value": 4 }, { "source": 60, "target": 59, "value": 2 }, { "source": 61, "target": 48, "value": 2 }, { "source": 61, "target": 58, "value": 6 }, { "source": 61, "target": 60, "value": 2 }, { "source": 61, "target": 59, "value": 5 }, { "source": 61, "target": 57, "value": 1 }, { "source": 61, "target": 55, "value": 1 }, { "source": 62, "target": 55, "value": 9 }, { "source": 62, "target": 58, "value": 17 }, { "source": 62, "target": 59, "value": 13 }, { "source": 62, "target": 48, "value": 7 }, { "source": 62, "target": 57, "value": 2 }, { "source": 62, "target": 41, "value": 1 }, { "source": 62, "target": 61, "value": 6 }, { "source": 62, "target": 60, "value": 3 }, { "source": 63, "target": 59, "value": 5 }, { "source": 63, "target": 48, "value": 5 }, { "source": 63, "target": 62, "value": 6 }, { "source": 63, "target": 57, "value": 2 }, { "source": 63, "target": 58, "value": 4 }, { "source": 63, "target": 61, "value": 3 }, { "source": 63, "target": 60, "value": 2 }, { "source": 63, "target": 55, "value": 1 }, { "source": 64, "target": 55, "value": 5 }, { "source": 64, "target": 62, "value": 12 }, { "source": 64, "target": 48, "value": 5 }, { "source": 64, "target": 63, "value": 4 }, { "source": 64, "target": 58, "value": 10 }, { "source": 64, "target": 61, "value": 6 }, { "source": 64, "target": 60, "value": 2 }, { "source": 64, "target": 59, "value": 9 }, { "source": 64, "target": 57, "value": 1 }, { "source": 64, "target": 11, "value": 1 }, { "source": 65, "target": 63, "value": 5 }, { "source": 65, "target": 64, "value": 7 }, { "source": 65, "target": 48, "value": 3 }, { "source": 65, "target": 62, "value": 5 }, { "source": 65, "target": 58, "value": 5 }, { "source": 65, "target": 61, "value": 5 }, { "source": 65, "target": 60, "value": 2 }, { "source": 65, "target": 59, "value": 5 }, { "source": 65, "target": 57, "value": 1 }, { "source": 65, "target": 55, "value": 2 }, { "source": 66, "target": 64, "value": 3 }, { "source": 66, "target": 58, "value": 3 }, { "source": 66, "target": 59, "value": 1 }, { "source": 66, "target": 62, "value": 2 }, { "source": 66, "target": 65, "value": 2 }, { "source": 66, "target": 48, "value": 1 }, { "source": 66, "target": 63, "value": 1 }, { "source": 66, "target": 61, "value": 1 }, { "source": 66, "target": 60, "value": 1 }, { "source": 67, "target": 57, "value": 3 }, { "source": 68, "target": 25, "value": 5 }, { "source": 68, "target": 11, "value": 1 }, { "source": 68, "target": 24, "value": 1 }, { "source": 68, "target": 27, "value": 1 }, { "source": 68, "target": 48, "value": 1 }, { "source": 68, "target": 41, "value": 1 }, { "source": 69, "target": 25, "value": 6 }, { "source": 69, "target": 68, "value": 6 }, { "source": 69, "target": 11, "value": 1 }, { "source": 69, "target": 24, "value": 1 }, { "source": 69, "target": 27, "value": 2 }, { "source": 69, "target": 48, "value": 1 }, { "source": 69, "target": 41, "value": 1 }, { "source": 70, "target": 25, "value": 4 }, { "source": 70, "target": 69, "value": 4 }, { "source": 70, "target": 68, "value": 4 }, { "source": 70, "target": 11, "value": 1 }, { "source": 70, "target": 24, "value": 1 }, { "source": 70, "target": 27, "value": 1 }, { "source": 70, "target": 41, "value": 1 }, { "source": 70, "target": 58, "value": 1 }, { "source": 71, "target": 27, "value": 1 }, { "source": 71, "target": 69, "value": 2 }, { "source": 71, "target": 68, "value": 2 }, { "source": 71, "target": 70, "value": 2 }, { "source": 71, "target": 11, "value": 1 }, { "source": 71, "target": 48, "value": 1 }, { "source": 71, "target": 41, "value": 1 }, { "source": 71, "target": 25, "value": 1 }, { "source": 72, "target": 26, "value": 2 }, { "source": 72, "target": 27, "value": 1 }, { "source": 72, "target": 11, "value": 1 }, { "source": 73, "target": 48, "value": 2 }, { "source": 74, "target": 48, "value": 2 }, { "source": 74, "target": 73, "value": 3 }, { "source": 75, "target": 69, "value": 3 }, { "source": 75, "target": 68, "value": 3 }, { "source": 75, "target": 25, "value": 3 }, { "source": 75, "target": 48, "value": 1 }, { "source": 75, "target": 41, "value": 1 }, { "source": 75, "target": 70, "value": 1 }, { "source": 75, "target": 71, "value": 1 }, { "source": 76, "target": 64, "value": 1 }, { "source": 76, "target": 65, "value": 1 }, { "source": 76, "target": 66, "value": 1 }, { "source": 76, "target": 63, "value": 1 }, { "source": 76, "target": 62, "value": 1 }, { "source": 76, "target": 48, "value": 1 }, { "source": 76, "target": 58, "value": 1 }] }
var width = 960, // svg width
height = 600, // svg height
dr = 4, // default point radius
off = 15, // cluster hull offset
expand = {}, // expanded clusters
data, net, force, hullg, hull, linkg, link, nodeg, node;
var curve = d3.svg.line()
.interpolate("cardinal-closed")
.tension(.85);
var fill = d3.scale.category20();
function noop() { return false; }
function nodeid(n) {
return n.size ? "_g_" + n.group : n.name;
}
function linkid(l) {
var u = nodeid(l.source),
v = nodeid(l.target);
return u < v ? u + "|" + v : v + "|" + u;
}
function getGroup(n) { return n.group; }
// constructs the network to visualize
function network(data, prev, index, expand) {
expand = expand || {};
var gm = {}, // group map
nm = {}, // node map
lm = {}, // link map
gn = {}, // previous group nodes
gc = {}, // previous group centroids
nodes = [], // output nodes
links = []; // output links
// process previous nodes for reuse or centroid calculation
if (prev) {
prev.nodes.forEach(function (n) {
var i = index(n), o;
if (n.size > 0) {
gn[i] = n;
n.size = 0;
} else {
o = gc[i] || (gc[i] = { x: 0, y: 0, count: 0 });
o.x += n.x;
o.y += n.y;
o.count += 1;
}
});
}
// determine nodes
for (var k = 0; k < data.nodes.length; ++k) {
var n = data.nodes[k],
i = index(n),
l = gm[i] || (gm[i] = gn[i]) || (gm[i] = { group: i, size: 0, nodes: [] });
if (expand[i]) {
// the node should be directly visible
nm[n.name] = nodes.length;
nodes.push(n);
if (gn[i]) {
// place new nodes at cluster location (plus jitter)
n.x = gn[i].x + Math.random();
n.y = gn[i].y + Math.random();
}
} else {
// the node is part of a collapsed cluster
if (l.size == 0) {
// if new cluster, add to set and position at centroid of leaf nodes
nm[i] = nodes.length;
nodes.push(l);
if (gc[i]) {
l.x = gc[i].x / gc[i].count;
l.y = gc[i].y / gc[i].count;
}
}
l.nodes.push(n);
}
// always count group size as we also use it to tweak the force graph strengths/distances
l.size += 1;
n.group_data = l;
}
for (i in gm) { gm[i].link_count = 0; }
// determine links
for (k = 0; k < data.links.length; ++k) {
var e = data.links[k],
u = index(e.source),
v = index(e.target);
if (u != v) {
gm[u].link_count++;
gm[v].link_count++;
}
u = expand[u] ? nm[e.source.name] : nm[u];
v = expand[v] ? nm[e.target.name] : nm[v];
var i = (u < v ? u + "|" + v : v + "|" + u),
l = lm[i] || (lm[i] = { source: u, target: v, size: 0 });
l.size += 1;
}
for (i in lm) { links.push(lm[i]); }
return { nodes: nodes, links: links };
}
function convexHulls(nodes, index, offset) {
var hulls = {};
// create point sets
for (var k = 0; k < nodes.length; ++k) {
var n = nodes[k];
if (n.size) continue;
var i = index(n),
l = hulls[i] || (hulls[i] = []);
l.push([n.x - offset, n.y - offset]);
l.push([n.x - offset, n.y + offset]);
l.push([n.x + offset, n.y - offset]);
l.push([n.x + offset, n.y + offset]);
}
// create convex hulls
var hullset = [];
for (i in hulls) {
hullset.push({ group: i, path: d3.geom.hull(hulls[i]) });
}
return hullset;
}
function drawCluster(d) {
return curve(d.path); // 0.8
}
// --------------------------------------------------------
var body = d3.select("body");
var vis = body.append("svg")
.attr("width", width)
.attr("height", height);
(function (json) {
data = json;
for (var i = 0; i < data.links.length; ++i) {
o = data.links[i];
o.source = data.nodes[o.source];
o.target = data.nodes[o.target];
}
hullg = vis.append("g");
linkg = vis.append("g");
nodeg = vis.append("g");
init();
vis.attr("opacity", 1e-6)
.transition()
.duration(1000)
.attr("opacity", 1);
})(json);
function init() {
if (force) force.stop();
net = network(data, net, getGroup, expand);
force = d3.layout.force()
.nodes(net.nodes)
.links(net.links)
.size([width, height])
.linkDistance(function (l, i) {
var n1 = l.source, n2 = l.target;
// larger distance for bigger groups:
// both between single nodes and _other_ groups (where size of own node group still counts),
// and between two group nodes.
//
// reduce distance for groups with very few outer links,
// again both in expanded and grouped form, i.e. between individual nodes of a group and
// nodes of another group or other group node or between two group nodes.
//
// The latter was done to keep the single-link groups ('blue', rose, ...) close.
return 30 +
Math.min(20 * Math.min((n1.size || (n1.group != n2.group ? n1.group_data.size : 0)),
(n2.size || (n1.group != n2.group ? n2.group_data.size : 0))),
-30 +
30 * Math.min((n1.link_count || (n1.group != n2.group ? n1.group_data.link_count : 0)),
(n2.link_count || (n1.group != n2.group ? n2.group_data.link_count : 0))),
100);
//return 150;
})
.linkStrength(function (l, i) {
return 1;
})
.gravity(0.05) // gravity+charge tweaked to ensure good 'grouped' view (e.g. green group not smack between blue&orange, ...
.charge(-600) // ... charge is important to turn single-linked groups to the outside
.friction(0.5) // friction adjusted to get dampened display: less bouncy bouncy ball [Swedish Chef, anyone?]
.start();
hullg.selectAll("path.hull").remove();
hull = hullg.selectAll("path.hull")
.data(convexHulls(net.nodes, getGroup, off))
.enter().append("path")
.attr("class", "hull")
.attr("d", drawCluster)
.style("fill", function (d) { return fill(d.group); })
.on("click", function (d) {
// console.log("hull click", d, arguments, this, expand[d.group]);
expand[d.group] = false; init();
});
link = linkg.selectAll("line.link").data(net.links, linkid);
link.exit().remove();
link.enter().append("line")
.attr("class", "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; })
.style("stroke-width", function (d) { return d.size || 1; });
node = nodeg.selectAll("circle.node").data(net.nodes, nodeid);
node.exit().remove();
node.enter().append("circle")
// if (d.size) -- d.size > 0 when d is a group node.
.attr("class", function (d) { return "node" + (d.size ? "" : " leaf"); })
.attr("r", function (d) { return d.size ? d.size + dr : dr + 1; })
.attr("cx", function (d) { return d.x; })
.attr("cy", function (d) { return d.y; })
.style("fill", function (d) { return fill(d.group); })
.on("click", function (d) {
console.log("node click", d, arguments, this, expand[d.group]);
expand[d.group] = !expand[d.group];
init();
});
node.call(force.drag);
force.on("tick", function () {
console.log('net')
console.log(net)
console.log(expand)
if (!hull.empty()) {
hull.data(convexHulls(net.nodes, getGroup, off))
.attr("d", drawCluster);
}
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>
</body>
</html>