feat: Three.js trajectory viewer — Flask :5051 + trajectoires + frustums + PLY décimé
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Floppyrj45
170
viz/static/js/scene.js
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170
viz/static/js/scene.js
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import * as THREE from 'three';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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// ── Renderer ──────────────────────────────────────────────────────────────────
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const renderer = new THREE.WebGLRenderer({ antialias: true });
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renderer.setPixelRatio(Math.min(devicePixelRatio, 2));
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renderer.setSize(innerWidth, innerHeight);
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document.body.appendChild(renderer.domElement);
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// ── Scene ─────────────────────────────────────────────────────────────────────
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const scene = new THREE.Scene();
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scene.background = new THREE.Color(0x06060f);
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scene.fog = new THREE.Fog(0x06060f, 500, 2000);
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scene.add(new THREE.GridHelper(1000, 100, 0x111133, 0x0a0a22));
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scene.add(new THREE.AxesHelper(5));
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// ── Camera + Controls ─────────────────────────────────────────────────────────
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const camera = new THREE.PerspectiveCamera(60, innerWidth / innerHeight, 0.1, 5000);
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camera.position.set(0, 150, 250);
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const controls = new OrbitControls(camera, renderer.domElement);
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controls.enableDamping = true;
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controls.dampingFactor = 0.08;
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controls.minDistance = 1;
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controls.maxDistance = 3000;
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// ── Layer registry ────────────────────────────────────────────────────────────
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const layers = {};
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function addLayer(name, obj) {
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layers[name] = layers[name] || [];
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layers[name].push(obj);
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scene.add(obj);
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}
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// ── Geometry helpers ──────────────────────────────────────────────────────────
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function makeLine(xArr, yArr, zArr, color) {
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const pts = xArr.map((x, i) => new THREE.Vector3(x, zArr[i], -yArr[i]));
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const geo = new THREE.BufferGeometry().setFromPoints(pts);
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return new THREE.Line(geo, new THREE.LineBasicMaterial({ color }));
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}
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function makePoints(xArr, yArr, zArr, colorFn) {
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const pos = new Float32Array(xArr.length * 3);
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const col = new Float32Array(xArr.length * 3);
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for (let i = 0; i < xArr.length; i++) {
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pos[i*3] = xArr[i];
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pos[i*3+1] = zArr[i];
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pos[i*3+2] = -yArr[i];
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const [r,g,b] = colorFn(i);
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col[i*3]=r; col[i*3+1]=g; col[i*3+2]=b;
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}
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const geo = new THREE.BufferGeometry();
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geo.setAttribute('position', new THREE.BufferAttribute(pos, 3));
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geo.setAttribute('color', new THREE.BufferAttribute(col, 3));
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return new THREE.Points(geo, new THREE.PointsMaterial({ size: 4, vertexColors: true, sizeAttenuation: true }));
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}
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function makeFrustum(T_flat) {
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// Wireframe camera pyramid: apex at origin, 1m×0.75m rect at z=1.5m
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const verts = new Float32Array([
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0,0,0, 0.5,0.375,1.5, 0.5,0.375,1.5, -0.5,0.375,1.5,
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-0.5,0.375,1.5,-0.5,-0.375,1.5, -0.5,-0.375,1.5,0.5,-0.375,1.5,
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0.5,-0.375,1.5,0,0,0, 0,0,0,0.5,0.375,1.5,
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]);
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const geo = new THREE.BufferGeometry();
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geo.setAttribute('position', new THREE.BufferAttribute(verts, 3));
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const mesh = new THREE.LineSegments(geo,
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new THREE.LineBasicMaterial({ color: 0xffd700, transparent: true, opacity: 0.5 }));
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const m = new THREE.Matrix4();
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// T_flat is row-major 4x4 from Python (need to transpose for Three.js column-major)
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m.set(
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T_flat[0][0],T_flat[0][1],T_flat[0][2],T_flat[0][3],
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T_flat[1][0],T_flat[1][1],T_flat[1][2],T_flat[1][3],
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T_flat[2][0],T_flat[2][1],T_flat[2][2],T_flat[2][3],
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T_flat[3][0],T_flat[3][1],T_flat[3][2],T_flat[3][3],
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);
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mesh.applyMatrix4(m);
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return mesh;
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}
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// ── RTK color mapping ─────────────────────────────────────────────────────────
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const RTK_COLORS = [[0.8,0.3,0.1],[0.9,0.7,0.1],[0.1,0.9,0.2]];
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// ── Load data ─────────────────────────────────────────────────────────────────
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fetch('/api/trajectory')
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.then(r => r.json())
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.then(d => {
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document.getElementById('status').textContent =
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`traj: ${d.traj_status || 'n/a'}`;
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if (d.usv_gps) {
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const { x, y, z, rtk } = d.usv_gps;
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addLayer('usv_gps', makeLine(x, y, z, 0x3a9fff));
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addLayer('usv_gps', makePoints(x, y, z, i => RTK_COLORS[Math.min(rtk[i], 2)]));
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}
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if (d.auv_depth) {
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const { x, y, z } = d.auv_depth;
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addLayer('auv_depth', makeLine(x, y, z, 0x44ffaa));
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}
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if (d.usbl) {
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const { x, y, z } = d.usbl;
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addLayer('usbl', makePoints(x, y, z, () => [1, 0.42, 0.21]));
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}
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const trajData = d.fused || d.lingbot_local;
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const trajLayer = d.fused ? 'fused' : 'lingbot_local';
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if (trajData) {
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const { x, y, z, T_4x4 } = trajData;
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addLayer(trajLayer, makeLine(x, y, z, d.fused ? 0xffffff : 0xffd700));
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if (T_4x4 && T_4x4.length > 0) {
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const step = Math.max(1, Math.floor(T_4x4.length / 100)); // max 100 frustums
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for (let i = 0; i < T_4x4.length; i += step) {
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addLayer('frustums', makeFrustum(T_4x4[i]));
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}
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}
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// Center camera
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if (x.length > 0) {
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controls.target.set(x[0], z[0], -y[0]);
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camera.position.set(x[0], z[0] + 50, -y[0] + 100);
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controls.update();
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}
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}
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if (d.ply) {
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const { x, y, z } = d.ply;
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addLayer('ply', makePoints(x, y, z, (i) => {
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const t = Math.min(1, Math.max(0, (-z[i]) / 20));
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return [0.2+0.3*t, 0.35+0.2*t, 0.5-0.2*t];
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}));
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}
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// If only USV GPS, center on that
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if (!trajData && d.usv_gps) {
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const { x, y, z } = d.usv_gps;
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const cx = x.reduce((a,b)=>a+b,0)/x.length;
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const cy = y.reduce((a,b)=>a+b,0)/y.length;
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controls.target.set(cx, 0, -cy);
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camera.position.set(cx, 50, -cy + 80);
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controls.update();
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}
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})
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.catch(err => {
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document.getElementById('status').textContent = `Error: ${err}`;
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});
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// ── Layer toggles ─────────────────────────────────────────────────────────────
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document.querySelectorAll('[data-layer]').forEach(cb => {
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cb.addEventListener('change', e => {
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const name = e.target.dataset.layer;
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(layers[name] || []).forEach(obj => { obj.visible = e.target.checked; });
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});
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});
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// ── Resize ────────────────────────────────────────────────────────────────────
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window.addEventListener('resize', () => {
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camera.aspect = innerWidth / innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize(innerWidth, innerHeight);
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});
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// ── Render loop ───────────────────────────────────────────────────────────────
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(function animate() {
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requestAnimationFrame(animate);
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controls.update();
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renderer.render(scene, camera);
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})();
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62
viz/static/trajectory.html
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62
viz/static/trajectory.html
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<!DOCTYPE html>
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<html lang="fr">
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<head>
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<meta charset="UTF-8">
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<title>COSMA NAV — Trajectory Viewer</title>
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<style>
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* { margin: 0; padding: 0; box-sizing: border-box; }
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body { background: #06060f; color: #ccc; font-family: 'Courier New', monospace; overflow: hidden; }
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canvas { display: block; }
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#legend {
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position: fixed; top: 16px; left: 16px;
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background: rgba(4,4,16,0.85); padding: 14px 18px;
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border-radius: 8px; border: 1px solid #223;
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font-size: 12px; min-width: 180px; backdrop-filter: blur(4px);
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}
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#legend h3 { color: #8af; margin-bottom: 10px; font-size: 13px; letter-spacing: 1px; }
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#legend label { display: flex; align-items: center; gap: 8px; cursor: pointer; margin: 5px 0; user-select: none; }
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.swatch { width: 10px; height: 10px; border-radius: 2px; flex-shrink: 0; }
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#info {
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position: fixed; bottom: 16px; left: 16px;
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background: rgba(4,4,16,0.85); padding: 8px 14px;
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border-radius: 6px; font-size: 11px; color: #89a;
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backdrop-filter: blur(4px); border: 1px solid #223;
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}
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#status {
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position: fixed; top: 16px; right: 16px;
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background: rgba(4,4,16,0.85); padding: 8px 14px;
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border-radius: 6px; font-size: 11px; color: #67d;
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backdrop-filter: blur(4px); border: 1px solid #223;
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}
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</style>
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</head>
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<body>
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<div id="legend">
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<h3>COSMA NAV</h3>
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<label><input type="checkbox" checked data-layer="usv_gps">
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<span class="swatch" style="background:#3a9fff"></span>USV GPS</label>
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<label><input type="checkbox" checked data-layer="auv_depth">
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<span class="swatch" style="background:#44ffaa"></span>AUV depth</label>
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<label><input type="checkbox" checked data-layer="usbl">
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<span class="swatch" style="background:#ff6b35"></span>USBL fixes</label>
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<label><input type="checkbox" checked data-layer="fused">
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<span class="swatch" style="background:#ffffff"></span>Fused world</label>
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<label><input type="checkbox" checked data-layer="lingbot_local">
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<span class="swatch" style="background:#ffd700"></span>lingbot local</label>
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<label><input type="checkbox" checked data-layer="frustums">
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<span class="swatch" style="background:#ffd70066"></span>Frustums</label>
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<label><input type="checkbox" checked data-layer="ply">
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<span class="swatch" style="background:#556"></span>Point cloud</label>
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</div>
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<div id="status">Loading…</div>
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<div id="info">Orbit: drag · Zoom: scroll · Pan: right-drag</div>
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<script type="importmap">
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{"imports":{
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"three":"https://cdn.jsdelivr.net/npm/three@0.160/build/three.module.js",
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"three/addons/":"https://cdn.jsdelivr.net/npm/three@0.160/examples/jsm/"
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}}
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</script>
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<script type="module" src="/static/js/scene.js"></script>
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</body>
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</html>
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