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Simulation speed settings for large network simulations

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wisplite
2025-09-08 16:15:30 -05:00
parent 193a83b1d5
commit 63ef2b3a9b
3 changed files with 60 additions and 18 deletions
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CompleteMoveOnEdge.js
+34 -7
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@@ -29,6 +29,8 @@ class CompleteNodeOnEdgeEngine {
this.timer = null;
this.lastTime = 0;
this.targetInterval = this.time_delay;
this.speedMultiplier = 1;
this.timeAccumulator = 0;
this._movementInitialized = false;
// Keep linksByEdges up-to-date for dynamic graph changes
@@ -87,6 +89,20 @@ class CompleteNodeOnEdgeEngine {
this.onArrival = callback;
}
/**
* Adjust the simulation speed multiplier.
* A value > 1 speeds up the simulation, 0 < value < 1 slows it down.
* @param {number} multiplier
*/
setSimulationSpeed(multiplier) {
if (!isFinite(multiplier) || multiplier <= 0) {
return;
}
this.speedMultiplier = multiplier;
const minInterval = 1; // ms
this.targetInterval = Math.max(minInterval, this.time_delay / this.speedMultiplier);
}
/**
* Initializes the movement of the nodes on edges.
*/
@@ -178,11 +194,22 @@ class CompleteNodeOnEdgeEngine {
}
loop = (timestamp) => {
const elapsed = timestamp - this.lastTime;
if (elapsed >= this.targetInterval) {
this.lastTime = timestamp;
this.eventProcess();
if (this.lastTime === 0) {
this.lastTime = timestamp;
}
const delta = timestamp - this.lastTime;
this.lastTime = timestamp;
this.timeAccumulator += delta * this.speedMultiplier;
let steps = 0;
const maxStepsPerFrame = 50;
while (this.timeAccumulator >= this.time_delay && steps < maxStepsPerFrame) {
this.eventProcess();
this.timeAccumulator -= this.time_delay;
steps++;
}
this.timer = requestAnimationFrame(this.loop);
};
@@ -190,18 +217,18 @@ class CompleteNodeOnEdgeEngine {
* Processes the movement events and updates the nodes on edges accordingly.
*/
eventProcess() {
var ratio = this.ratio_inc;
var ratio = this.ratio_inc * this.speedMultiplier;
if (ratio < 0) {
this.moveDot(ratio, this.currentTime);
this.currentTime = this.currentTime + this.time_delay * Math.sign(ratio);
this.currentTime = this.currentTime + this.time_delay * Math.sign(this.ratio_inc) * this.speedMultiplier;
this.replayManager(this.currentTime, true);
this.maxTime = Math.max(this.maxTime, this.currentTime);
} else {
this.moveDot(ratio, this.currentTime);
this.currentTime = this.currentTime + this.time_delay * Math.sign(ratio);
this.currentTime = this.currentTime + this.time_delay * Math.sign(this.ratio_inc) * this.speedMultiplier;
this.replayManager(this.currentTime, false);
this.maxTime = Math.max(this.maxTime, this.currentTime);