Published
Edited
Aug 27, 2020
24 forks
Importers
41 stars
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chart = {
const root = tree(bilink(d3.hierarchy(data)
.sort((a, b) => d3.ascending(a.height, b.height) || d3.ascending(a.data.id, b.data.id))));

const svg = d3.create("svg")
.attr("viewBox", [-width / 2, -width / 2, width, width]);

const node = svg.append("g")
.attr("font-family", "sans-serif")
.attr("font-size", 10)
.selectAll("g")
.data(root.leaves())
.join("g")
.attr("transform", d => `rotate(${d.x * 180 / Math.PI - 90}) translate(${d.y},0)`)
.append("text")
.attr("dy", "0.31em")
.attr("x", d => d.x < Math.PI ? 6 : -6)
.attr("text-anchor", d => d.x < Math.PI ? "start" : "end")
.attr("transform", d => d.x >= Math.PI ? "rotate(180)" : null)
.text(d => d.data.id)
.each(function(d) { d.text = this; })
.on("mouseover", overed)
.on("mouseout", outed)
.call(text => text.append("title").text(d => `${d.data.id}
${d.outgoing.length} outgoing
${d.incoming.length} incoming`));

const link = svg.append("g")
.attr("stroke", colornone)
.attr("fill", "none")
.selectAll("path")
.data(root.leaves().flatMap(leaf => leaf.outgoing))
.join("path")
.style("mix-blend-mode", "multiply")
.attr("d", ([i, o]) => line(i.path(o)))
.each(function(d) { d.path = this; });

function overed(event, d) {
link.style("mix-blend-mode", null);
d3.select(this).attr("font-weight", "bold");
d3.selectAll(d.incoming.map(d => d.path)).attr("stroke", colorin).raise();
d3.selectAll(d.incoming.map(([d]) => d.text)).attr("fill", colorin).attr("font-weight", "bold");
d3.selectAll(d.outgoing.map(d => d.path)).attr("stroke", colorout).raise();
d3.selectAll(d.outgoing.map(([, d]) => d.text)).attr("fill", colorout).attr("font-weight", "bold");
}

function outed(event, d) {
link.style("mix-blend-mode", "multiply");
d3.select(this).attr("font-weight", null);
d3.selectAll(d.incoming.map(d => d.path)).attr("stroke", null);
d3.selectAll(d.incoming.map(([d]) => d.text)).attr("fill", null).attr("font-weight", null);
d3.selectAll(d.outgoing.map(d => d.path)).attr("stroke", null);
d3.selectAll(d.outgoing.map(([, d]) => d.text)).attr("fill", null).attr("font-weight", null);
}

return svg.node();
}
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graph = FileAttachment("miserables.json").json()
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data = {
const {nodes, links} = graph;
const groupById = new Map;
const nodeById = new Map(nodes.map(node => [node.id, node]));

for (const node of nodes) {
let group = groupById.get(node.group);
if (!group) groupById.set(node.group, group = {id: node.group, children: []});
group.children.push(node);
node.targets = [];
}

for (const {source: sourceId, target: targetId} of links) {
nodeById.get(sourceId).targets.push(targetId);
}

return {children: [...groupById.values()]};
}
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colorin = "#00f"
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colorout = "#f00"
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colornone = "#ccc"
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width = 954
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radius = width / 2
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line = d3.lineRadial()
.curve(d3.curveBundle.beta(0.85))
.radius(d => d.y)
.angle(d => d.x)
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tree = d3.cluster()
.size([2 * Math.PI, radius - 100])
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d3 = require("d3@6")
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