Vdash Making A New Dash -p3- Apr 2026

class LowPassFilter constructor(alpha = 0.2) this.alpha = alpha; this.filtered = 0; filter(value) this.filtered = this.alpha * value + (1 - this.alpha) * this.filtered; return this.filtered;

function renderIfDirty() if (dirtyFlags.speed) updateSpeedDisplay(); if (dirtyFlags.rpm) updateRPMNeedle(); // Reset flags after render

// Draw once per frame drawCanvas(); updateDOM(); VDash Making A New Dash -P3-

if (rpm >= this.thresholds[this.thresholds.length - 1]) this.blink();

replay(dataArray, speed = 1.0) let index = 0; const interval = setInterval(() => if (index >= dataArray.length) clearInterval(interval); VDash.emit('data:update', dataArray[index++].data); , 1000 / 60 / speed); class LowPassFilter constructor(alpha = 0

requestAnimationFrame(renderLoop);

const PerfMonitor = frames: 0, lastTime: performance.now(), tick() this.frames++; const now = performance.now(); if (now - this.lastTime >= 1000) console.log( FPS: $this.frames ); this.frames = 0; this.lastTime = now; this.filtered = 0

Only re-render changed elements: