Maxim Dolgolyov
ae31e4c4e8
lab-init.js: 4098 -> 543 lines (infrastructure + THEORY only) Each sim's _open*() + UI helpers moved to its engine file: graph.js, projectile.js, collision.js, magnetic.js, triangle.js, geometry.js, trigcircle.js, gas.js (molphys), coulomb.js, circuit.js, reactions.js (chemistry), newton.js (dynamics), chemsandbox.js, celldivision.js, photosynthesis.js, angrybirds.js, quadratic.js, normaldist.js, graphtransform.js, pendulum.js, equilibrium.js, thinlens.js, mirror.js, isoprocess.js, titration.js, refraction.js, probability.js, bohratom.js, electrolysis.js, waves.js, crystal.js, orbitals.js, stereo.js, hydrostatics.js All 34 engine files syntax-checked OK.
548 lines
21 KiB
JavaScript
548 lines
21 KiB
JavaScript
'use strict';
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/* ═══════════════════════════════════════════
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WavesSim v2 — Волны и звук
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Modes: transverse | longitudinal | superposition | standing
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─────────────────────────────────────────── */
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class WavesSim {
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static BG = '#0D0D1A';
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static FONT = "700 12px 'Manrope',sans-serif";
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static V = '#9B5DE5'; /* violet */
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static C = '#06D6E0'; /* cyan */
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static P = '#F15BB5'; /* pink */
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static G = '#FFD166'; /* gold */
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constructor(canvas) {
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this._c = canvas;
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this._ctx = canvas.getContext('2d');
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this._dpr = 1;
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this._W = 0;
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this._H = 0;
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this._mode = 'transverse';
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this._t = 0;
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this._last = null;
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this._raf = null;
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this._paused = true;
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this._A1 = 50; this._f1 = 1.0; this._phi1 = 0;
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this._A2 = 40; this._f2 = 1.5; this._phi2 = 0;
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this._n = 1;
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this._speed = 2.0;
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this._resizeObs = null;
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this.onUpdate = null;
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}
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/* ── публичное API ── */
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fit() {
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const par = this._c.parentElement;
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const dpr = window.devicePixelRatio || 1;
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const w = par.clientWidth || 600;
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const h = par.clientHeight || 400;
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this._c.width = Math.round(w * dpr);
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this._c.height = Math.round(h * dpr);
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this._dpr = dpr;
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this._W = w;
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this._H = h;
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if (this._resizeObs) this._resizeObs.disconnect();
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this._resizeObs = new ResizeObserver(() => this.fit());
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this._resizeObs.observe(par);
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this.draw();
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}
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setMode(mode) {
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this._mode = mode;
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this._t = 0;
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this._last = null;
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this.draw();
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this._emit();
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}
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getParams() {
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return { A1: this._A1, f1: this._f1, phi1: this._phi1, A2: this._A2, f2: this._f2, phi2: this._phi2,
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n: this._n, speed: this._speed, mode: this._mode };
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}
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setParams({ A1, f1, phi1, A2, f2, phi2, n, speed } = {}) {
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if (A1 !== undefined) this._A1 = Math.max(5, Math.min(90, +A1));
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if (f1 !== undefined) this._f1 = Math.max(0.3, Math.min(4, +f1));
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if (phi1 !== undefined) this._phi1 = +phi1;
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if (A2 !== undefined) this._A2 = Math.max(5, Math.min(90, +A2));
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if (f2 !== undefined) this._f2 = Math.max(0.3, Math.min(4, +f2));
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if (phi2 !== undefined) this._phi2 = +phi2;
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if (n !== undefined) this._n = Math.max(1, Math.min(5, Math.round(+n)));
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if (speed !== undefined) this._speed = Math.max(0.3, Math.min(5, +speed));
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this.draw();
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this._emit();
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}
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play() {
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this._paused = false;
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this._last = null;
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if (!this._raf) this._raf = requestAnimationFrame(t => this._tick(t));
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}
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pause() {
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this._paused = true;
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if (this._raf) { cancelAnimationFrame(this._raf); this._raf = null; }
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}
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start() { this.play(); }
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stop() { this.pause(); }
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reset() { this._t = 0; this._last = null; this.draw(); this._emit(); }
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info() {
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const v = (this._W || 600) / 3;
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return {
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T: (1 / this._f1).toFixed(2),
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lambda: (v / this._f1).toFixed(0),
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v: v.toFixed(0),
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f1: this._f1
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};
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}
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/* ── анимационный цикл ── */
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_tick(ts) {
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if (!this._paused) {
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if (this._last !== null)
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this._t += Math.min((ts - this._last) / 1000, 0.05) * this._speed;
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this._last = ts;
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this._raf = requestAnimationFrame(t => this._tick(t));
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} else {
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this._raf = null;
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}
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this.draw();
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this._emit();
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}
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/* ── главный draw ── */
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draw() {
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const { _ctx: ctx, _W: W, _H: H, _dpr: dpr } = this;
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if (!W || !H) return;
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/* сбрасываем трансформ + заливаем фон */
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ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
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ctx.fillStyle = WavesSim.BG;
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ctx.fillRect(0, 0, W, H);
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if (this._mode === 'transverse') this._transvDraw(ctx, W, H);
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else if (this._mode === 'longitudinal') this._longDraw(ctx, W, H);
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else if (this._mode === 'superposition') this._superDraw(ctx, W, H);
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else this._standDraw(ctx, W, H);
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}
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/* ══════════════════════════════════════
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ПОПЕРЕЧНАЯ ВОЛНА
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══════════════════════════════════════ */
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_transvDraw(ctx, W, H) {
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const PL = 48, PR = 20, PT = 50, PB = 48;
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const cw = W - PL - PR;
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const ch = H - PT - PB;
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const cy = PT + ch / 2;
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this._grid(ctx, PL, PR, PT, PB, W, H);
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this._axisLine(ctx, PL, PR, PT, PB, W, H, cy);
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const A = Math.max(4, Math.min(this._A1, ch / 2 - 8));
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const v = cw / 3;
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const lam = v / this._f1;
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const k = (2 * Math.PI) / lam;
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const om = 2 * Math.PI * this._f1;
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const t = this._t;
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const phi = this._phi1;
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const y = x => A * Math.sin(om * t - k * (x - PL) + phi);
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/* волновая кривая */
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ctx.save();
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ctx.shadowColor = WavesSim.V;
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ctx.shadowBlur = 16;
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ctx.strokeStyle = WavesSim.V;
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ctx.lineWidth = 2.5;
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ctx.beginPath();
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for (let x = PL; x <= PL + cw; x += 1) {
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const py = cy + y(x);
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x === PL ? ctx.moveTo(x, py) : ctx.lineTo(x, py);
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}
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ctx.stroke();
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ctx.restore();
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/* частицы */
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const step = Math.max(12, Math.floor(lam / 10));
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for (let x = PL + step * 0.5; x < PL + cw; x += step) {
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const py = cy + y(x);
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const norm = Math.abs(y(x)) / (A || 1);
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ctx.beginPath(); ctx.moveTo(x, cy); ctx.lineTo(x, py);
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ctx.strokeStyle = 'rgba(155,93,229,0.2)'; ctx.lineWidth = 1; ctx.stroke();
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ctx.save();
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ctx.shadowColor = WavesSim.V; ctx.shadowBlur = 8;
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ctx.beginPath(); ctx.arc(x, py, 4, 0, 6.28);
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ctx.fillStyle = `rgba(155,93,229,${(0.4 + 0.6 * norm).toFixed(2)})`; ctx.fill();
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ctx.restore();
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}
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/* выделенная частица */
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const hx = PL + Math.min(lam * 0.5, cw * 0.22);
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const hy = cy + y(hx);
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ctx.save();
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ctx.shadowColor = WavesSim.G; ctx.shadowBlur = 18;
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ctx.beginPath(); ctx.arc(hx, hy, 6, 0, 6.28);
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ctx.fillStyle = WavesSim.G; ctx.fill();
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ctx.restore();
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ctx.save();
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ctx.setLineDash([3, 4]);
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ctx.strokeStyle = 'rgba(255,209,102,0.22)'; ctx.lineWidth = 1;
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ctx.beginPath(); ctx.moveTo(hx, cy - A); ctx.lineTo(hx, cy + A); ctx.stroke();
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ctx.restore();
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/* аннотация длины волны */
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const ld = Math.min(lam, cw - 16);
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if (ld > 36) {
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const ay = cy + A + 26;
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ctx.save();
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ctx.strokeStyle = 'rgba(6,214,224,0.7)'; ctx.lineWidth = 1.4;
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ctx.beginPath();
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ctx.moveTo(PL + 8, ay); ctx.lineTo(PL + 8 + ld, ay);
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ctx.moveTo(PL + 13, ay - 4); ctx.lineTo(PL + 8, ay); ctx.lineTo(PL + 13, ay + 4);
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ctx.moveTo(PL + 8 + ld - 5, ay - 4); ctx.lineTo(PL + 8 + ld, ay); ctx.lineTo(PL + 8 + ld - 5, ay + 4);
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ctx.stroke();
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ctx.fillStyle = WavesSim.C; ctx.textAlign = 'center';
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ctx.font = "700 10px 'Manrope',sans-serif";
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ctx.fillText('\u03bb = ' + ld.toFixed(0), PL + 8 + ld / 2, ay - 5);
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ctx.restore();
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}
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/* аннотация амплитуды */
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if (A > 16) {
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const ax = PL - 20;
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ctx.save();
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ctx.strokeStyle = 'rgba(241,91,181,0.7)'; ctx.lineWidth = 1.4;
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ctx.beginPath();
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ctx.moveTo(ax, cy); ctx.lineTo(ax, cy - A);
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ctx.moveTo(ax - 4, cy - A + 5); ctx.lineTo(ax, cy - A); ctx.lineTo(ax + 4, cy - A + 5);
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ctx.moveTo(ax - 3, cy - 3); ctx.lineTo(ax, cy); ctx.lineTo(ax + 3, cy - 3);
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ctx.stroke();
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ctx.fillStyle = WavesSim.P; ctx.textAlign = 'center';
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ctx.font = "700 10px 'Manrope',sans-serif";
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ctx.save(); ctx.translate(ax - 12, cy - A / 2); ctx.rotate(-Math.PI / 2);
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ctx.fillText('A', 0, 0); ctx.restore();
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ctx.restore();
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}
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/* подпись */
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ctx.fillStyle = 'rgba(255,255,255,0.28)';
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ctx.font = WavesSim.FONT; ctx.textAlign = 'left';
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ctx.fillText('y = A sin(\u03c9t \u2212 kx + \u03c6)', PL, PT - 14);
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}
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/* ══════════════════════════════════════
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ПРОДОЛЬНАЯ ВОЛНА
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══════════════════════════════════════ */
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_longDraw(ctx, W, H) {
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const PL = 24, PR = 24, PT = 50, PB = 60;
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const cw = W - PL - PR;
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const ch = H - PT - PB;
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const nRows = 5;
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const rowH = ch / nRows;
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const nPart = Math.max(20, Math.floor(cw / 10));
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const dx0 = cw / nPart;
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const v = cw / 3;
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const lam = v / this._f1;
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const k = (2 * Math.PI) / lam;
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const om = 2 * Math.PI * this._f1;
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const A = Math.min(this._A1 * 0.5, lam / 4, rowH * 0.36);
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const t = this._t;
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const phi = this._phi1;
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/* ряды частиц */
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for (let row = 0; row < nRows; row++) {
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const cy = PT + rowH * (row + 0.5);
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for (let i = 0; i < nPart; i++) {
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const x0 = PL + (i + 0.5) * dx0;
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const phase = om * t - k * (x0 - PL) + phi;
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const disp = A * Math.sin(phase);
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const xd = Math.max(PL + 1, Math.min(PL + cw - 1, x0 + disp));
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const dens = 1 / Math.max(0.15, 1 + (-A * k * Math.cos(phase)));
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const alpha = Math.max(0.1, Math.min(0.95, dens * 0.55));
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ctx.beginPath(); ctx.arc(xd, cy, 3, 0, 6.28);
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ctx.fillStyle = `rgba(155,93,229,${alpha.toFixed(2)})`; ctx.fill();
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}
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}
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/* график давления */
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const pTop = PT + ch + 10;
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const pH = H - pTop - 8;
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if (pH > 20) {
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const axY = pTop + pH / 2;
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ctx.strokeStyle = 'rgba(255,255,255,0.08)'; ctx.lineWidth = 1;
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ctx.setLineDash([4, 3]);
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ctx.beginPath(); ctx.moveTo(PL, axY); ctx.lineTo(PL + cw, axY); ctx.stroke();
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ctx.setLineDash([]);
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ctx.save();
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ctx.shadowColor = WavesSim.C; ctx.shadowBlur = 8;
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ctx.strokeStyle = WavesSim.C; ctx.lineWidth = 2;
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ctx.beginPath();
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for (let x = PL; x <= PL + cw; x += 1) {
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const py = axY - Math.cos(om * t - k * (x - PL) + phi) * pH * 0.4;
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x === PL ? ctx.moveTo(x, py) : ctx.lineTo(x, py);
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}
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ctx.stroke(); ctx.restore();
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ctx.fillStyle = WavesSim.C; ctx.font = "600 9px 'Manrope',sans-serif"; ctx.textAlign = 'left';
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ctx.fillText('P(x,t)', PL + 2, pTop + 11);
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}
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ctx.fillStyle = 'rgba(255,255,255,0.28)';
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ctx.font = WavesSim.FONT; ctx.textAlign = 'left';
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ctx.fillText('Продольная волна', PL, PT - 16);
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}
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/* ══════════════════════════════════════
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СУПЕРПОЗИЦИЯ
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══════════════════════════════════════ */
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_superDraw(ctx, W, H) {
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const PL = 48, PR = 20, PT = 70, PB = 48;
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const cw = W - PL - PR;
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const ch = H - PT - PB;
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const cy = PT + ch / 2;
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this._grid(ctx, PL, PR, PT, PB, W, H);
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this._axisLine(ctx, PL, PR, PT, PB, W, H, cy);
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const v = cw / 3;
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const t = this._t;
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const mk = (f, A) => {
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const lam = v / f, k = (2 * Math.PI) / lam, om = 2 * Math.PI * f;
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const amp = Math.max(4, Math.min(A, ch / 2 - 8));
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return { k, om, amp };
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};
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const w1 = mk(this._f1, this._A1);
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const w2 = mk(this._f2, this._A2);
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const y1 = x => w1.amp * Math.sin(w1.om * t - w1.k * (x - PL) + this._phi1);
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const y2 = x => w2.amp * Math.sin(w2.om * t - w2.k * (x - PL) + this._phi2);
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const yR = x => y1(x) + y2(x);
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this._waveLine(ctx, PL, cw, cy, y1, WavesSim.V, 1.5, 0.45, false);
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this._waveLine(ctx, PL, cw, cy, y2, WavesSim.C, 1.5, 0.45, false);
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this._waveLine(ctx, PL, cw, cy, yR, WavesSim.P, 2.8, 1.0, true);
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/* легенда */
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const items = [
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{ c: WavesSim.V, txt: 'y\u2081 = A\u2081 sin(\u03c9\u2081t \u2212 k\u2081x + \u03c6\u2081)' },
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{ c: WavesSim.C, txt: 'y\u2082 = A\u2082 sin(\u03c9\u2082t \u2212 k\u2082x + \u03c6\u2082)' },
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{ c: WavesSim.P, txt: 'y = y\u2081 + y\u2082' },
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];
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ctx.font = "600 9px 'Manrope',sans-serif";
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items.forEach((it, i) => {
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const lx = PL + 6, ly = PT - 56 + i * 18;
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ctx.save();
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ctx.shadowColor = it.c; ctx.shadowBlur = 8;
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ctx.fillStyle = it.c;
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ctx.beginPath(); ctx.arc(lx + 4, ly + 4, 3.5, 0, 6.28); ctx.fill();
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ctx.restore();
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ctx.fillStyle = 'rgba(255,255,255,0.55)'; ctx.textAlign = 'left';
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ctx.fillText(it.txt, lx + 13, ly + 8);
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});
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}
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/* ══════════════════════════════════════
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СТОЯЧАЯ ВОЛНА
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══════════════════════════════════════ */
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_standDraw(ctx, W, H) {
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const PL = 48, PR = 20, PT = 50, PB = 48;
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const cw = W - PL - PR;
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const ch = H - PT - PB;
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const cy = PT + ch / 2;
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this._grid(ctx, PL, PR, PT, PB, W, H);
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this._axisLine(ctx, PL, PR, PT, PB, W, H, cy);
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const n = this._n;
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const k = (n * Math.PI) / cw;
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const om = 2 * Math.PI * this._f1;
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const A = Math.max(4, Math.min(this._A1, ch / 2 - 10));
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const t = this._t;
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/* прямая и обратная (тусклые) */
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this._waveLine(ctx, PL, cw, cy, x => A * Math.sin(om * t - k * (x - PL)), WavesSim.V, 1.0, 0.25, false);
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this._waveLine(ctx, PL, cw, cy, x => A * Math.sin(om * t + k * (x - PL) + Math.PI), WavesSim.C, 1.0, 0.25, false);
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/* огибающая */
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ctx.save();
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ctx.globalAlpha = 0.12;
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ctx.fillStyle = WavesSim.V;
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ctx.beginPath(); ctx.moveTo(PL, cy);
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for (let x = PL; x <= PL + cw; x++) ctx.lineTo(x, cy - 2 * A * Math.abs(Math.sin(k * (x - PL))));
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for (let x = PL + cw; x >= PL; x--) ctx.lineTo(x, cy + 2 * A * Math.abs(Math.sin(k * (x - PL))));
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ctx.closePath(); ctx.fill(); ctx.restore();
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/* стоячая волна */
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const cosT = Math.cos(om * t + this._phi1);
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this._waveLine(ctx, PL, cw, cy, x => 2 * A * Math.sin(k * (x - PL)) * cosT, WavesSim.G, 2.8, 1.0, true);
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/* узлы (cyan) */
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ctx.save(); ctx.shadowColor = WavesSim.C; ctx.shadowBlur = 10; ctx.fillStyle = WavesSim.C;
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for (let m = 0; m <= n; m++) {
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ctx.beginPath(); ctx.arc(PL + m * cw / n, cy, 5, 0, 6.28); ctx.fill();
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}
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ctx.restore();
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/* пучности (pink) */
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ctx.save(); ctx.shadowColor = WavesSim.P; ctx.shadowBlur = 12; ctx.fillStyle = WavesSim.P;
|
|
for (let m = 0; m < n; m++) {
|
|
const ax = PL + (m + 0.5) * cw / n;
|
|
const ay = cy + 2 * A * Math.sin(k * (ax - PL)) * cosT;
|
|
ctx.beginPath(); ctx.arc(ax, ay, 5, 0, 6.28); ctx.fill();
|
|
}
|
|
ctx.restore();
|
|
|
|
/* легенда */
|
|
const lx = W - PR - 128, ly = PT - 20;
|
|
ctx.font = "600 9px 'Manrope',sans-serif";
|
|
[{ c: WavesSim.C, t: 'Узел (y\u22610)', dy: 0 }, { c: WavesSim.P, t: 'Пучность', dy: 16 }].forEach(r => {
|
|
ctx.save(); ctx.shadowColor = r.c; ctx.shadowBlur = 8; ctx.fillStyle = r.c;
|
|
ctx.beginPath(); ctx.arc(lx + 5, ly + r.dy + 5, 4, 0, 6.28); ctx.fill(); ctx.restore();
|
|
ctx.fillStyle = 'rgba(255,255,255,0.5)'; ctx.textAlign = 'left';
|
|
ctx.fillText(r.t, lx + 14, ly + r.dy + 9);
|
|
});
|
|
|
|
ctx.fillStyle = 'rgba(255,255,255,0.28)'; ctx.font = WavesSim.FONT; ctx.textAlign = 'left';
|
|
ctx.fillText('n = ' + n + ' \u03bb = 2L/' + n, PL, PT - 14);
|
|
}
|
|
|
|
/* ══════════════════════════════════════
|
|
ВСПОМОГАТЕЛЬНЫЕ
|
|
══════════════════════════════════════ */
|
|
|
|
_waveLine(ctx, PL, cw, cy, fn, color, lw, alpha, glow) {
|
|
ctx.save();
|
|
ctx.globalAlpha = alpha;
|
|
if (glow) { ctx.shadowColor = color; ctx.shadowBlur = 16; }
|
|
ctx.strokeStyle = color; ctx.lineWidth = lw;
|
|
ctx.beginPath();
|
|
for (let x = PL; x <= PL + cw; x += 1) {
|
|
const py = cy + fn(x);
|
|
x === PL ? ctx.moveTo(x, py) : ctx.lineTo(x, py);
|
|
}
|
|
ctx.stroke(); ctx.restore();
|
|
}
|
|
|
|
_grid(ctx, PL, PR, PT, PB, W, H) {
|
|
ctx.strokeStyle = 'rgba(255,255,255,0.04)'; ctx.lineWidth = 1;
|
|
ctx.beginPath();
|
|
for (let y = PT; y <= H - PB; y += 28) { ctx.moveTo(PL, y); ctx.lineTo(W - PR, y); }
|
|
for (let x = PL; x <= W - PR; x += 40) { ctx.moveTo(x, PT); ctx.lineTo(x, H - PB); }
|
|
ctx.stroke();
|
|
}
|
|
|
|
_axisLine(ctx, PL, PR, PT, PB, W, H, cy) {
|
|
ctx.save();
|
|
ctx.setLineDash([6, 4]);
|
|
ctx.strokeStyle = 'rgba(255,255,255,0.12)'; ctx.lineWidth = 1;
|
|
ctx.beginPath(); ctx.moveTo(PL, cy); ctx.lineTo(W - PR, cy); ctx.stroke();
|
|
ctx.restore();
|
|
ctx.strokeStyle = 'rgba(255,255,255,0.18)'; ctx.lineWidth = 1;
|
|
ctx.beginPath();
|
|
ctx.moveTo(PL, PT - 6); ctx.lineTo(PL, H - PB);
|
|
ctx.moveTo(PL, H - PB); ctx.lineTo(W - PR + 6, H - PB);
|
|
ctx.stroke();
|
|
ctx.fillStyle = 'rgba(255,255,255,0.22)';
|
|
ctx.font = "600 9px 'Manrope',sans-serif";
|
|
ctx.textAlign = 'right'; ctx.fillText('y', PL - 4, PT);
|
|
ctx.textAlign = 'left'; ctx.fillText('x', W - PR + 8, H - PB + 4);
|
|
}
|
|
|
|
_emit() { if (this.onUpdate) this.onUpdate(this.info()); }
|
|
}
|
|
|
|
/* ─── lab UI init ─────────────────────────────────── */
|
|
function _openWaves() {
|
|
document.getElementById('sim-topbar-title').textContent = 'Волны и звук';
|
|
document.getElementById('ctrl-waves').style.display = '';
|
|
_simShow('sim-waves');
|
|
_registerSimState('waves', () => wavesSim?.getParams(),
|
|
st => { if (wavesSim) { if (st.mode) wavesSim.setMode(st.mode); wavesSim.setParams(st); } });
|
|
if (_embedMode) _startStateEmit('waves');
|
|
requestAnimationFrame(() => requestAnimationFrame(() => {
|
|
if (!wavesSim) {
|
|
wavesSim = new WavesSim(document.getElementById('waves-canvas'));
|
|
wavesSim.onUpdate = _wavesUpdateUI;
|
|
}
|
|
wavesSim.fit();
|
|
wavesSim.reset();
|
|
wavesSim.play();
|
|
_wavesUpdateUI(wavesSim.info());
|
|
}));
|
|
}
|
|
|
|
function wavesMode(mode, btn) {
|
|
document.querySelectorAll('.wave-mode-btn').forEach(b => b.classList.remove('active'));
|
|
if (btn) btn.classList.add('active');
|
|
document.getElementById('waves-w2-section').style.display = mode === 'superposition' ? '' : 'none';
|
|
document.getElementById('waves-n-section').style.display = mode === 'standing' ? '' : 'none';
|
|
if (wavesSim) wavesSim.setMode(mode);
|
|
}
|
|
|
|
function wavesParam(name, val) {
|
|
const v = parseFloat(val);
|
|
const el = (id, txt) => { const e = document.getElementById(id); if (e) e.textContent = txt; };
|
|
if (name === 'A1') el('waves-A1-val', v);
|
|
if (name === 'f1') el('waves-f1-val', v.toFixed(1) + ' Гц');
|
|
if (name === 'phi1') el('waves-phi1-val', v.toFixed(1));
|
|
if (name === 'A2') el('waves-A2-val', v);
|
|
if (name === 'f2') el('waves-f2-val', v.toFixed(1) + ' Гц');
|
|
if (name === 'phi2') el('waves-phi2-val', v.toFixed(1));
|
|
if (name === 'speed') el('waves-speed-val', '\u00d7' + v.toFixed(1));
|
|
if (wavesSim) wavesSim.setParams({ [name]: v });
|
|
}
|
|
|
|
function wavesN(n, btn) {
|
|
document.querySelectorAll('.wave-n-btn').forEach(b => b.classList.remove('active'));
|
|
if (btn) btn.classList.add('active');
|
|
if (wavesSim) wavesSim.setParams({ n });
|
|
}
|
|
|
|
function wavesPreset(name) {
|
|
const presets = {
|
|
constructive: { A1: 50, f1: 1.0, phi1: 0, A2: 50, f2: 1.0, phi2: 0 },
|
|
destructive: { A1: 50, f1: 1.0, phi1: 0, A2: 50, f2: 1.0, phi2: 3.14 },
|
|
beats: { A1: 50, f1: 1.0, phi1: 0, A2: 50, f2: 1.3, phi2: 0 },
|
|
};
|
|
const p = presets[name]; if (!p) return;
|
|
document.getElementById('sl-waves-A1').value = p.A1;
|
|
document.getElementById('sl-waves-f1').value = p.f1;
|
|
document.getElementById('sl-waves-phi1').value = p.phi1;
|
|
document.getElementById('sl-waves-A2').value = p.A2;
|
|
document.getElementById('sl-waves-f2').value = p.f2;
|
|
document.getElementById('sl-waves-phi2').value = p.phi2;
|
|
document.getElementById('waves-A1-val').textContent = p.A1;
|
|
document.getElementById('waves-f1-val').textContent = p.f1.toFixed(1) + ' Гц';
|
|
document.getElementById('waves-phi1-val').textContent = p.phi1.toFixed(1);
|
|
document.getElementById('waves-A2-val').textContent = p.A2;
|
|
document.getElementById('waves-f2-val').textContent = p.f2.toFixed(1) + ' Гц';
|
|
document.getElementById('waves-phi2-val').textContent = p.phi2.toFixed(1);
|
|
if (wavesSim) wavesSim.setParams({ A1: p.A1, f1: p.f1, phi1: p.phi1, A2: p.A2, f2: p.f2, phi2: p.phi2 });
|
|
}
|
|
|
|
function wavesPlayPause() {
|
|
if (!wavesSim) return;
|
|
const btn = document.getElementById('waves-play-btn');
|
|
if (wavesSim._paused) {
|
|
wavesSim.play();
|
|
btn.innerHTML = '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.2"><rect x="6" y="4" width="4" height="16"/><rect x="14" y="4" width="4" height="16"/></svg>';
|
|
} else {
|
|
wavesSim.pause();
|
|
btn.innerHTML = '<svg viewBox="0 0 24 24" fill="currentColor"><polygon points="5 3 19 12 5 21 5 3"/></svg>';
|
|
}
|
|
}
|
|
|
|
function _wavesUpdateUI(info) {
|
|
const v = (id, val) => { const e = document.getElementById(id); if (e) e.textContent = val; };
|
|
v('wavesbar-T', info.T);
|
|
v('wavesbar-lam', info.lambda);
|
|
v('wavesbar-v', info.v);
|
|
v('wavesbar-f', (+info.f1).toFixed(1));
|
|
}
|
|
|
|
/* ── crystal lattice (3D) ── */
|