25 lines
869 B
JavaScript
25 lines
869 B
JavaScript
importScripts("https://d3js.org/d3-collection.v1.min.js");
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importScripts("https://d3js.org/d3-dispatch.v1.min.js");
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importScripts("https://d3js.org/d3-quadtree.v1.min.js");
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importScripts("https://d3js.org/d3-timer.v1.min.js");
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importScripts("https://d3js.org/d3-force.v1.min.js");
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onmessage = function(event) {
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var nodes = event.data.nodes,
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links = event.data.links;
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var simulation = d3.forceSimulation(nodes)
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.force("charge", d3.forceManyBody())
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.force("link", d3.forceLink(links).distance(20).strength(1))
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.force("x", d3.forceX())
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.force("y", d3.forceY())
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.stop();
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for (var i = 0, n = Math.ceil(Math.log(simulation.alphaMin()) / Math.log(1 - simulation.alphaDecay())); i < n; ++i) {
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postMessage({type: "tick", progress: i / n});
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simulation.tick();
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}
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postMessage({type: "end", nodes: nodes, links: links});
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};
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