60 lines
1.7 KiB
JavaScript
60 lines
1.7 KiB
JavaScript
/**
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* Initialize the link force algorithm and start simulation.
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*/
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function startLinkSimulation() {
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console.log("startLinkSimulation")
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springForce = false;
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alreadyRanIterations = 0;
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manualStop = true;
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simulation.stop();
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p1 = performance.now();
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let links = [], force;
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if (tweakedVerOfLink) {
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force = d3.forceLinkFullyConnected()
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.distance(function (n, m) {
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return distanceFunction(n, m, props, norm);
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})
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.stableVelocity(0) // Change here
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.onStableVelo(ended);
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}
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else {
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for (i = nodes.length-1; i >= 1; i--) {
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for (j = i-1; j >= 0; j--) {
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links.push({
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source: nodes[i],
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target: nodes[j],
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});
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}
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}
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force = d3.forceLink()
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.distance(function (n) {
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return distanceFunction(n.source, n.target, props, norm);
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})
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.links(links);
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}
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/* Add force
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* Please add the distance function, links, and set simulation nodes
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* before feeding the force to the simulation.
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*
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* On setting the distance fn or being initialized by the simulation, the
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* force will pre-calculate high-dimensional distances of every link and
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* store that as cache.
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* Adding distance fn and links before being initialize by the simulation
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* means that the first pre-calculation will calculate noting as there was
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* no nodes list.
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* The full pre-calculation will then occur once when the force is being
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* initialized by the simulation where nodes list is given.
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*/
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simulation
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.alphaDecay(0)
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.alpha(1)
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.on("tick", ticked)
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.on("end", ended)
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//.velocityDecay(0.8)
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.force(forceName,force)
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.restart();
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}
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