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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>NEXUS / HARMONIC GEOMETRY LAB / 07</title>
<link href="https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=IBM+Plex+Mono:wght@200;300;400;500&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css">
<style>
:root {
--bg:#0a0a0a;--fg:#e8e0d4;--muted:#5a5550;--accent:#d4a03c;
--accent-dim:rgba(212,160,60,0.3);--card:rgba(18, 17, 16, 0.85);
--border:rgba(212,160,60,0.15);--panel-bg:rgba(12,11,10,0.92);
}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--fg);font-family:'IBM Plex Mono',monospace;overflow:hidden;width:100vw;height:100vh;cursor:crosshair}
#canvas-container{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0}
.ui-overlay{position:fixed;top:0;left:0;width:100%;height:100%;z-index:10;pointer-events:none}
.ui-overlay>*{pointer-events:auto}
.vignette{position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at center,transparent 50%,rgba(0,0,0,0.6) 100%);pointer-events:none;z-index:5}
.scanlines{position:fixed;top:0;left:0;width:100%;height:100%;background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,0.03) 2px,rgba(0,0,0,0.03) 4px);pointer-events:none;z-index:100}
.top-bar{position:absolute;top:0;left:0;right:0;height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;background:linear-gradient(180deg,rgba(10,10,10,0.97) 0%,transparent 100%);border-bottom:1px solid var(--border)}
.top-bar-title{font-family:'Orbitron',sans-serif;font-size:11px;font-weight:700;letter-spacing:4px;color:var(--accent)}
.top-bar-subtitle{font-size:9px;font-weight:300;color:var(--muted);letter-spacing:2px;margin-top:2px}
.top-bar-right{display:flex;align-items:center;gap:14px}
.status-dot{width:5px;height:5px;border-radius:50%;background:#4ade80;box-shadow:0 0 8px rgba(74,222,128,0.6);animation:pulse-dot 2s ease-in-out infinite}
@keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:0.3}}
.status-text{font-size:8px;letter-spacing:2px;color:var(--muted)}
.mode-indicator{font-size:8px;letter-spacing:2px;color:var(--accent);text-transform:uppercase;opacity:0.85}
.stencil-panel{position:absolute;left:20px;top:72px;width:310px;background:var(--panel-bg);border:1px solid var(--border);border-radius:3px;backdrop-filter:blur(24px);overflow:hidden}
.panel-header{padding:10px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.panel-header-title{font-family:'Orbitron',sans-serif;font-size:9px;font-weight:500;letter-spacing:2.5px;color:var(--accent)}
.panel-header-badge{font-size:7px;padding:2px 7px;border:1px solid var(--accent-dim);border-radius:2px;color:var(--muted);letter-spacing:1px}
.stencil-body{padding:10px}
.blueprint-section{margin-bottom:10px}
.blueprint-label{font-size:7px;letter-spacing:2.5px;color:var(--muted);margin-bottom:5px;text-transform:uppercase}
.blueprint-canvas{width:100%;border:1px solid var(--border);border-radius:2px;background:rgba(0,0,0,0.5);display:block}
.stencil-readout{padding:8px 14px;border-top:1px solid var(--border);font-size:8px;letter-spacing:1px;color:var(--muted);line-height:1.9}
.stencil-readout span{color:var(--fg)}
.hud-panel{position:absolute;right:20px;top:72px;width:220px;background:var(--panel-bg);border:1px solid var(--border);border-radius:3px;backdrop-filter:blur(24px)}
.catalog-list{padding:4px 0}
.catalog-item{padding:7px 14px;display:flex;align-items:center;justify-content:space-between;font-size:9px;letter-spacing:2px;color:var(--muted);cursor:pointer;transition:all 0.3s;border-left:2px solid transparent;user-select:none}
.catalog-item:hover{color:var(--fg);background:rgba(212,160,60,0.04)}
.catalog-item.active{color:var(--accent);border-left-color:var(--accent);background:rgba(212,160,60,0.07)}
.catalog-item-index{font-size:7px;opacity:0.35}
.mode-toolbar{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;padding:10px 14px;border-top:1px solid var(--border)}
.mode-button{padding:8px 6px;font-size:8px;letter-spacing:1.5px;text-transform:uppercase;border:1px solid rgba(255,255,255,0.08);border-radius:3px;background:transparent;color:var(--muted);cursor:pointer;transition:all 0.2s}
.mode-button.active{color:var(--accent);border-color:var(--accent);background:rgba(212,160,60,0.08)}
.mode-button:hover{color:var(--fg);border-color:rgba(212,160,60,0.35)}
.legend-block{padding:8px 14px;font-size:7px;letter-spacing:1.5px;color:var(--muted);border-top:1px solid var(--border);text-transform:uppercase}
.freq-control{padding:14px;border-top:1px solid var(--border)}
.freq-label{font-size:7px;letter-spacing:2px;color:var(--muted);margin-bottom:8px;text-transform:uppercase}
.freq-label em{font-style:normal;color:var(--accent)}
.freq-wave-icon{text-align:center;margin-bottom:6px;color:var(--accent);font-size:13px;animation:wave-glow 2s ease-in-out infinite}
@keyframes wave-glow{0%,100%{text-shadow:0 0 4px rgba(212,160,60,0.2)}50%{text-shadow:0 0 14px rgba(212,160,60,0.8)}}
.freq-slider-container{position:relative;width:100%;height:20px;display:flex;align-items:center}
.freq-track{width:100%;height:2px;background:rgba(255,255,255,0.06);border-radius:1px;position:relative}
.freq-fill{height:100%;background:linear-gradient(90deg,var(--accent-dim),var(--accent));border-radius:1px;width:50%;box-shadow:0 0 8px rgba(212,160,60,0.2);transition:width 0.05s}
.freq-knob{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(212,160,60,0.5),0 0 3px rgba(212,160,60,0.9);cursor:grab;transition:box-shadow 0.2s}
.freq-knob:hover,.freq-knob:focus-visible{box-shadow:0 0 18px rgba(212,160,60,0.8),0 0 5px rgba(212,160,60,1);outline:none}
.freq-knob:active{cursor:grabbing}
.freq-value{text-align:center;margin-top:6px;font-size:10px;color:var(--accent);font-family:'Orbitron',sans-serif;letter-spacing:2px}
.resonance-control{padding:14px;border-top:1px solid var(--border);display:none}
.resonance-source-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}
.resonance-file-label{background:transparent;border:1px solid var(--accent-dim);color:var(--muted);font-size:7px;letter-spacing:1.5px;padding:4px 7px;cursor:pointer;text-transform:uppercase;flex:1;text-align:center}
.resonance-file-label:hover{color:var(--fg);border-color:var(--accent)}
.resonance-readout{font-size:7px;letter-spacing:1px;color:var(--muted);line-height:1.7;text-transform:uppercase}
.resonance-readout span{color:var(--accent)}
.holo-status{position:absolute;top:50%;left:50%;transform:translate(-50%,-155px);display:flex;align-items:center;gap:7px;pointer-events:none}
.holo-status-dot{width:4px;height:4px;border-radius:50%;background:var(--accent);box-shadow:0 0 6px var(--accent);animation:pulse-dot 3s ease-in-out infinite}
.holo-status-text{font-size:7px;letter-spacing:3px;color:var(--accent);opacity:0.65}
.center-label{position:absolute;bottom:170px;left:50%;transform:translateX(-50%);text-align:center;pointer-events:none;white-space:nowrap}
.center-label-main{font-family:'Orbitron',sans-serif;font-size:10px;font-weight:500;letter-spacing:5px;color:var(--accent);opacity:0.85;margin-bottom:3px}
.center-label-sub{font-size:7px;letter-spacing:2.5px;color:var(--muted)}
.footer-bar{position:absolute;bottom:0;left:0;right:0;height:36px;display:flex;align-items:center;justify-content:center;background:linear-gradient(0deg,rgba(10,10,10,0.97) 0%,transparent 100%);border-top:1px solid var(--border)}
.footer-text{font-size:8px;letter-spacing:3px;color:var(--muted)}
.footer-text span{color:var(--accent)}
.measurement-panel{position:absolute;right:20px;bottom:54px;width:250px;padding:10px 12px;background:rgba(10,10,10,0.85);border:1px solid var(--border);border-radius:3px;backdrop-filter:blur(18px);pointer-events:auto}
.measurement-panel-title{font-family:'Orbitron',sans-serif;font-size:8px;letter-spacing:2.5px;color:var(--accent);margin-bottom:6px;text-transform:uppercase;display:flex;align-items:center;justify-content:space-between}
.measurement-action{background:transparent;border:1px solid var(--accent-dim);color:var(--muted);font-size:7px;letter-spacing:1.5px;padding:4px 7px;cursor:pointer;text-transform:uppercase}
.measurement-action:hover{color:var(--fg);border-color:var(--accent)}
.measurement-actions-row{display:flex;gap:6px;padding:6px 12px 2px;border-top:1px solid var(--border);margin-top:4px}
.measurement-log{display:flex;flex-direction:column;gap:4px;max-height:120px;overflow:auto}
.measurement-row{font-size:7px;letter-spacing:1px;color:var(--muted);padding:4px 0;border-top:1px solid rgba(255,255,255,0.05)}
.measurement-row:first-child{border-top:0;padding-top:0}
.corner-deco{position:absolute;width:16px;height:16px;border-color:var(--border);border-style:solid;border-width:0}
.corner-deco.tl{top:58px;left:10px;border-top-width:1px;border-left-width:1px}
.corner-deco.tr{top:58px;right:10px;border-top-width:1px;border-right-width:1px}
.corner-deco.bl{bottom:40px;left:10px;border-bottom-width:1px;border-left-width:1px}
.corner-deco.br{bottom:40px;right:10px;border-bottom-width:1px;border-right-width:1px}
@media(max-width:960px){.stencil-panel{width:220px;left:10px}.stencil-panel .blueprint-section:last-child{display:none}.hud-panel{width:170px;right:10px}}
@media(max-width:680px){.stencil-panel{display:none}.hud-panel{width:150px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important}}
</style>
</head>
<body>
<div id="canvas-container"></div>
<div class="vignette"></div>
<div class="scanlines"></div>
<div class="ui-overlay">
<div class="corner-deco tl"></div><div class="corner-deco tr"></div>
<div class="corner-deco bl"></div><div class="corner-deco br"></div>
<header class="top-bar">
<div>
<div class="top-bar-title">NEXUS / HARMONIC GEOMETRY LAB / 07</div>
<div class="top-bar-subtitle">SACRED GEOMETRY INTERFACE v3.2.1</div>
</div>
<div class="top-bar-right">
<div class="status-dot"></div>
<div class="status-text">HOLO-FIELD ACTIVE</div>
<div class="mode-indicator">MODE: CONNECT</div>
</div>
</header>
<aside class="stencil-panel" id="stencil-panel" aria-label="Stencil Projection Panel">
<div class="panel-header">
<div class="panel-header-title">δ DODECA // STENCIL PROJECTION</div>
<div class="panel-header-badge" id="stencil-badge">LIVE</div>
</div>
<div class="stencil-body">
<div class="blueprint-section active" data-view="net">
<div class="blueprint-label">Net View — Unfolded Plan</div>
<canvas class="blueprint-canvas" id="net-canvas" width="290" height="150"></canvas>
</div>
<div class="blueprint-section" data-view="ortho">
<div class="blueprint-label">Ortho View — Top-Down Projection</div>
<canvas class="blueprint-canvas" id="ortho-canvas" width="290" height="110"></canvas>
</div>
<div class="blueprint-section" data-view="detail">
<div class="blueprint-label">Face Detail — Pentagon Geometry</div>
<canvas class="blueprint-canvas" id="detail-canvas" width="290" height="135"></canvas>
</div>
</div>
<div class="stencil-readout">
PROJECTION TYPE: <span>Net Layout (A4 optimized for print)</span><br>
SCALE: <span>1:1.618</span> | UNIT: <span>φ-relative</span><br>
FACES: <span>12</span> | EDGES: <span>30</span> | VERTICES: <span>20</span>
</div>
</aside>
<aside class="hud-panel" aria-label="Specimen Catalog">
<div class="panel-header">
<div class="panel-header-title">SPECIMEN CATALOG</div>
<div class="panel-header-badge">PLATONIC</div>
</div>
<div class="catalog-list" role="listbox">
<div class="catalog-item" role="option" data-solid="tetra"><span>TETRA</span><span class="catalog-item-index">04</span></div>
<div class="catalog-item" role="option" data-solid="hexa"><span>HEXA</span><span class="catalog-item-index">06</span></div>
<div class="catalog-item" role="option" data-solid="octa"><span>OCTA</span><span class="catalog-item-index">08</span></div>
<div class="catalog-item" role="option" data-solid="icosa"><span>ICOSA</span><span class="catalog-item-index">20</span></div>
<div class="catalog-item active" role="option" data-solid="dodeca" aria-selected="true"><span>DODECA</span><span class="catalog-item-index">12</span></div>
<div class="catalog-item" role="option" data-solid="meta"><span>MERKABA</span><span class="catalog-item-index">✦</span></div>
</div>
<div class="mode-toolbar" role="group" aria-label="Interaction mode selector">
<button class="mode-button" type="button" data-mode="VIEW">VIEW</button>
<button class="mode-button active" type="button" data-mode="CONNECT">CONNECT</button>
<button class="mode-button" type="button" data-mode="CUSTOM">CUSTOM</button>
<button class="mode-button" type="button" data-mode="DISCONNECT">DISCONNECT</button>
<button class="mode-button" type="button" data-mode="CUT">CUT</button>
<button class="mode-button" type="button" data-mode="SKETCH">SKETCH</button>
<button class="mode-button" type="button" data-mode="RESONANCE">RESONANCE</button>
</div>
<div class="legend-block">KEYS: 1=VIEW · 2=CONNECT · 3=DISCONNECT · 4=CUT · 5=SKETCH · 6=CUSTOM · 7=RESONANCE</div>
<div class="freq-control">
<div class="freq-label">CYMATIC HARMONIC FREQUENCY (<em>f</em>)</div>
<div class="freq-wave-icon"><i class="fas fa-wave-square"></i></div>
<div class="freq-slider-container" id="slider-track">
<div class="freq-track"><div class="freq-fill" id="freq-fill"></div></div>
<div class="freq-knob" id="freq-knob" role="slider" aria-label="Frequency control" aria-valuemin="0" aria-valuemax="100" aria-valuenow="50" tabindex="0"></div>
</div>
<div class="freq-value" id="freq-value">432.0 Hz</div>
</div>
<div class="resonance-control" id="resonance-control">
<div class="freq-label">RESONANCE — HEMISPHERIC SYNC INPUT</div>
<div class="resonance-source-row">
<label class="resonance-file-label" for="resonance-file-input"><i class="fas fa-file-audio"></i> UPLOAD</label>
<input type="file" id="resonance-file-input" accept="audio/*" style="display:none">
<button class="resonance-file-label" id="resonance-mic-btn" type="button"><i class="fas fa-microphone"></i> MIC</button>
<button class="resonance-file-label" id="resonance-stop-btn" type="button"><i class="fas fa-stop"></i> STOP</button>
<button class="resonance-file-label" id="resonance-mode-btn" type="button"><i class="fas fa-atom"></i> MODE: RADIAL</button>
<button class="resonance-file-label" id="resonance-bridge-btn" type="button"><i class="fas fa-link"></i> BRIDGE</button>
</div>
<div class="resonance-readout" id="resonance-readout">NO AUDIO SOURCE — DIAL DRIVEN</div>
</div>
</aside>
<div class="holo-status">
<div class="holo-status-dot"></div>
<div class="holo-status-text">HOLO-FIELD STABLE</div>
</div>
<div class="center-label">
<div class="center-label-main">DODECAHEDRON</div>
<div class="center-label-sub">12 FACES / 30 EDGES / 20 VERTICES</div>
</div>
<div class="measurement-panel" aria-live="polite">
<div class="measurement-panel-title">
<span>MEASUREMENT LAB</span>
<button class="measurement-action" id="clear-connections-btn" type="button">CLEAR SCENE</button>
</div>
<div class="measurement-log" id="measurement-log">
<div class="measurement-row">NO LINKS YET</div>
</div>
<div class="measurement-actions-row">
<button class="measurement-action" id="export-specimen-btn" type="button">EXPORT</button>
<button class="measurement-action" id="clear-data-btn" type="button">CLEAR DATA</button>
</div>
</div>
<footer class="footer-bar">
<div class="footer-text"><span>TOUCH</span> to manipulate solid / <span>DRAG</span> views</div>
</footer>
</div>
<script type="importmap">
{
"imports":{
"three":"https://unpkg.com/three@0.160.0/build/three.module.js",
"three/addons/":"https://unpkg.com/three@0.160.0/examples/jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { TransformControls } from 'three/addons/controls/TransformControls.js';
import { Reflector } from 'three/addons/objects/Reflector.js';
/* ====== Scene Setup ====== */
const container = document.getElementById('canvas-container');
const scene = new THREE.Scene();
scene.fog = new THREE.FogExp2(0x0a0a0a, 0.032);
const camera = new THREE.PerspectiveCamera(42, innerWidth / innerHeight, 0.1, 100);
camera.position.set(0, 2.8, 7.5);
const renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setSize(innerWidth, innerHeight);
renderer.setPixelRatio(Math.min(devicePixelRatio, 2));
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.toneMappingExposure = 0.75;
renderer.outputColorSpace = THREE.SRGBColorSpace;
container.appendChild(renderer.domElement);
/* ====== Controls ====== */
const controls = new OrbitControls(camera, renderer.domElement);
controls.enableDamping = true;
controls.dampingFactor = 0.05;
controls.minDistance = 4;
controls.maxDistance = 14;
controls.maxPolarAngle = Math.PI * 0.58;
controls.minPolarAngle = Math.PI * 0.12;
controls.target.set(0, 1.2, 0);
controls.enablePan = false;
/* ====== Lighting ====== */
scene.add(new THREE.AmbientLight(0x1a1510, 0.5));
const spotLight = new THREE.SpotLight(0xd4a03c, 18, 22, Math.PI * 0.13, 0.6, 1.5);
spotLight.position.set(-3, 9, 2);
spotLight.target.position.set(0, 1, 0);
scene.add(spotLight, spotLight.target);
const fillLight = new THREE.PointLight(0x3a4a5a, 2.5, 16);
fillLight.position.set(5, 3, -4);
scene.add(fillLight);
const rimLight = new THREE.PointLight(0xd4a03c, 4, 14);
rimLight.position.set(0, 2, -6);
scene.add(rimLight);
const groundGlow = new THREE.PointLight(0xd4a03c, 2, 7);
groundGlow.position.set(0, 0.05, 0);
scene.add(groundGlow);
/* ====== Reflective Floor ====== */
const pr = Math.min(devicePixelRatio, 2);
const floorReflector = new Reflector(
new THREE.PlaneGeometry(30, 30),
{ clipBias: 0.003, textureWidth: innerWidth * pr, textureHeight: innerHeight * pr, color: 0x111111 }
);
floorReflector.rotation.x = -Math.PI / 2;
floorReflector.position.y = -0.01;
scene.add(floorReflector);
const floorOverlay = new THREE.Mesh(
new THREE.PlaneGeometry(30, 30),
new THREE.MeshStandardMaterial({ color: 0x0a0a0a, roughness: 0.25, metalness: 0.85, transparent: true, opacity: 0.55 })
);
floorOverlay.rotation.x = -Math.PI / 2;
floorOverlay.position.y = 0.002;
scene.add(floorOverlay);
/* ====== Glass Laboratory Structure ====== */
const glassGroup = new THREE.Group();
const frameMat = new THREE.LineBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0.12 });
const s = 1.4, h = 3.0;
const fp = [
[-s,0,-s],[s,0,-s],[s,0,s],[-s,0,s],
[-s,h,-s],[s,h,-s],[s,h,s],[-s,h,s]
];
const frameEdges = [
[0,1],[1,2],[2,3],[3,0],
[4,5],[5,6],[6,7],[7,4],
[0,4],[1,5],[2,6],[3,7]
];
const framePts = [];
frameEdges.forEach(([a,b]) => {
framePts.push(new THREE.Vector3(...fp[a]), new THREE.Vector3(...fp[b]));
});
glassGroup.add(new THREE.LineSegments(
new THREE.BufferGeometry().setFromPoints(framePts), frameMat
));
const braceMat = new THREE.LineBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0.04 });
const bracePts = [
new THREE.Vector3(-s,0,-s), new THREE.Vector3(s,h,s),
new THREE.Vector3(s,0,-s), new THREE.Vector3(-s,h,s),
];
glassGroup.add(new THREE.LineSegments(new THREE.BufferGeometry().setFromPoints(bracePts), braceMat));
const gpm = new THREE.MeshPhysicalMaterial({
color: 0xffffff, transparent: true, opacity: 0.025,
roughness: 0.05, metalness: 0, side: THREE.DoubleSide, depthWrite: false
});
const pg = new THREE.PlaneGeometry(s * 2, h);
const p1 = new THREE.Mesh(pg, gpm); p1.position.set(0, h/2, -s); glassGroup.add(p1);
const p2 = new THREE.Mesh(pg, gpm); p2.position.set(-s, h/2, 0); p2.rotation.y = Math.PI/2; glassGroup.add(p2);
const p3 = new THREE.Mesh(pg, gpm); p3.position.set(s, h/2, 0); p3.rotation.y = -Math.PI/2; glassGroup.add(p3);
scene.add(glassGroup);
/* ====== Geometry Generation Engines ====== */
function createMerkabaGeometry() {
const geom = new THREE.BufferGeometry();
const vertices = [];
const t1 = new THREE.ConeGeometry(0.9, 1.2, 3, 1);
t1.rotateX(Math.PI);
t1.translate(0, 0.2, 0);
const t2 = new THREE.ConeGeometry(0.9, 1.2, 3, 1);
t2.translate(0, -0.2, 0);
const p1 = t1.attributes.position.array;
const p2 = t2.attributes.position.array;
for(let i=0; i<p1.length; i++) vertices.push(p1[i]);
for(let i=0; i<p2.length; i++) vertices.push(p2[i]);
geom.setAttribute('position', new THREE.Float32BufferAttribute(vertices, 3));
return geom;
}
function buildGeometryForKey(key) {
switch (key) {
case 'tetra':
return new THREE.TetrahedronGeometry(1.1);
case 'hexa':
return new THREE.BoxGeometry(1, 1, 1);
case 'octa':
return new THREE.OctahedronGeometry(1.1);
case 'icosa':
return new THREE.IcosahedronGeometry(1.1);
case 'meta':
return createMerkabaGeometry();
default:
return new THREE.DodecahedronGeometry(1.0);
}
}
/* ====== Active Core Solid Setup ====== */
const coreGroup = new THREE.Group();
coreGroup.position.y = 1.5;
scene.add(coreGroup);
let currentMesh, currentWireframe;
let uniqueVerts = [];
let vertexDots = []; // uniqueVerts[i] <-> vertexDots[i]
let meshVertexMap = []; // geo position index -> uniqueVerts index
let wireframeVertexMap = []; // EdgesGeometry position index -> uniqueVerts index
let edgeList = []; // [vertexIndexA, vertexIndexB] per edge, derived from wireframeVertexMap
let edgeBowDirections = []; // per-edge unit vector, perpendicular to that edge, cached at load time
let cymaticEdgeGroup = null; // v0.4 — one THREE.Line per edge, interior standing-wave points
const EDGE_SUBDIVISIONS = 20;
const EDGE_AMP_SCALE = 0.5;
const vertDotGeo = new THREE.SphereGeometry(0.028, 8, 8);
const vertDotMat = new THREE.MeshBasicMaterial({ color: 0xd4a03c });
const edgesMat = new THREE.LineBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0.65, vertexColors: true });
const cymaticEdgeMat = new THREE.LineBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0.75, vertexColors: true });
const coreMat = new THREE.MeshPhysicalMaterial({
color: 0xd4a03c, transparent: true, opacity: 0.06,
roughness: 0.1, metalness: 0.3, side: THREE.DoubleSide,
depthWrite: false, emissive: 0xd4a03c, emissiveIntensity: 0.04
});
function loadSolid(key) {
activeSolidKey = key;
activeSelectedNodes = [];
lastMeasurementNodes = [];
measurementLine.visible = false;
clearCustomPoints();
clearConnectionLines();
updateMeasurementDisplay();
updateMeasurementLog();
while(coreGroup.children.length > 0) {
coreGroup.remove(coreGroup.children[0]);
}
const geo = buildGeometryForKey(key);
currentMesh = new THREE.Mesh(geo, coreMat);
coreGroup.add(currentMesh);
currentWireframe = new THREE.LineSegments(new THREE.EdgesGeometry(geo), edgesMat);
coreGroup.add(currentWireframe);
uniqueVerts = [];
vertexDots = [];
const posArr = geo.attributes.position;
const seen = new Map(); // key -> uniqueVerts index, reused below for the wireframe lookup
meshVertexMap = new Array(posArr.count);
for (let i = 0; i < posArr.count; i++) {
const k = `${posArr.getX(i).toFixed(2)},${posArr.getY(i).toFixed(2)},${posArr.getZ(i).toFixed(2)}`;
let vertexIndex = seen.get(k);
if (vertexIndex === undefined) {
vertexIndex = uniqueVerts.length;
seen.set(k, vertexIndex);
const v = new THREE.Vector3(posArr.getX(i), posArr.getY(i), posArr.getZ(i));
uniqueVerts.push(v);
const dot = new THREE.Mesh(vertDotGeo, new THREE.MeshBasicMaterial({ color: 0xd4a03c }));
dot.name = 'vertex-dot';
dot.userData.isVertexDot = true;
dot.userData.vertexId = `vtx-${vertexIndex}`;
dot.position.copy(v);
cacheRestState(dot, NATIVE_VERTEX_CENTER);
coreGroup.add(dot);
vertexDots.push(dot);
}
meshVertexMap[i] = vertexIndex;
}
// EdgesGeometry endpoints coincide exactly with geo's vertices, so the same rounded-key match resolves them.
const wfPosArr = currentWireframe.geometry.attributes.position;
wireframeVertexMap = new Array(wfPosArr.count);
for (let i = 0; i < wfPosArr.count; i++) {
const k = `${wfPosArr.getX(i).toFixed(2)},${wfPosArr.getY(i).toFixed(2)},${wfPosArr.getZ(i).toFixed(2)}`;
wireframeVertexMap[i] = seen.get(k);
}
// Starts all-white so vertexColors * material.color == plain gold until harmonic mode writes real values.
const wfColorArr = new Float32Array(wfPosArr.count * 3).fill(1);
currentWireframe.geometry.setAttribute('color', new THREE.BufferAttribute(wfColorArr, 3));
buildCymaticEdgeGroup();
}
// v0.4 — edge list needs no new detection: EdgesGeometry pairs consecutive points as one segment
// each, and wireframeVertexMap already resolves each of those points to a uniqueVerts index.
function buildCymaticEdgeGroup() {
if (cymaticEdgeGroup) coreGroup.remove(cymaticEdgeGroup);
cymaticEdgeGroup = new THREE.Group();
edgeList = [];
edgeBowDirections = [];
for (let i = 0; i < wireframeVertexMap.length; i += 2) {
const a = wireframeVertexMap[i], b = wireframeVertexMap[i + 1];
edgeList.push([a, b]);
edgeBowDirections.push(computeEdgeBowDirection(uniqueVerts[a], uniqueVerts[b], NATIVE_VERTEX_CENTER));
const geo = new THREE.BufferGeometry();
geo.setAttribute('position', new THREE.BufferAttribute(new Float32Array(EDGE_SUBDIVISIONS * 3), 3));
geo.setAttribute('color', new THREE.BufferAttribute(new Float32Array(EDGE_SUBDIVISIONS * 3).fill(1), 3));
const line = new THREE.Line(geo, cymaticEdgeMat);
cymaticEdgeGroup.add(line);
}
cymaticEdgeGroup.visible = false;
coreGroup.add(cymaticEdgeGroup);
}
/* ====== Flower of Life Background ====== */
const flowerGroup = new THREE.Group();
flowerGroup.position.y = 1.5;
const flowerMat = new THREE.LineBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0, depthWrite: false });
function makeFlowerRing(r, ringR, count) {
const circles = [];
const cp = [];
for (let j = 0; j <= 64; j++) {
const a = (j/64)*Math.PI*2;
cp.push(new THREE.Vector3(Math.cos(a)*r, Math.sin(a)*r, 0));
}
circles.push(cp);
for (let i = 0; i < count; i++) {
const ang = (i/count)*Math.PI*2;
const cx = Math.cos(ang)*ringR, cy = Math.sin(ang)*ringR;
const pts = [];
for (let j = 0; j <= 64; j++) {
const a = (j/64)*Math.PI*2;
pts.push(new THREE.Vector3(cx+Math.cos(a)*r, cy+Math.sin(a)*r, 0));
}
circles.push(pts);
}
return circles;
}
const fr = 1.7, fRing = fr;
makeFlowerRing(fr, fRing, 6).forEach(pts => { flowerGroup.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints(pts), flowerMat.clone())); });
makeFlowerRing(fr, fRing, 6).forEach(pts => { const line = new THREE.Line(new THREE.BufferGeometry().setFromPoints(pts), flowerMat.clone()); line.rotation.x = Math.PI/2; flowerGroup.add(line); });
makeFlowerRing(fr, fRing, 6).forEach(pts => { const line = new THREE.Line(new THREE.BufferGeometry().setFromPoints(pts), flowerMat.clone()); line.rotation.y = Math.PI/2; flowerGroup.add(line); });
flowerGroup.scale.setScalar(0.01);
scene.add(flowerGroup);
/* ====== Ambient Light Shaft ====== */
const shaftGeo = new THREE.CylinderGeometry(0.25, 1.8, 9, 16, 1, true);
const shaftMat = new THREE.MeshBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0.012, side: THREE.DoubleSide, depthWrite: false });
const lightShaft = new THREE.Mesh(shaftGeo, shaftMat);
lightShaft.position.set(-3, 4.5, 2);
scene.add(lightShaft);
/* ====== Floating Atmospheric Particles ====== */
const pCount = 600;
const pPos = new Float32Array(pCount * 3);
const pVel = [];
for (let i = 0; i < pCount; i++) {
pPos[i*3] = (Math.random()-0.5)*22;
pPos[i*3+1] = Math.random()*9;
pPos[i*3+2] = (Math.random()-0.5)*22;
pVel.push({ x:(Math.random()-0.5)*0.002, y:Math.random()*0.004+0.001, z:(Math.random()-0.5)*0.002 });
}
const pGeo = new THREE.BufferGeometry();
pGeo.setAttribute('position', new THREE.BufferAttribute(pPos, 3));
const particles = new THREE.Points(pGeo, new THREE.PointsMaterial({
color: 0xd4a03c, size: 0.018, transparent: true, opacity: 0.35,
sizeAttenuation: true, depthWrite: false, blending: THREE.AdditiveBlending
}));
scene.add(particles);
/* ====== Holographic Measuring Hand ====== */
const handGroup = new THREE.Group();
const handMat = new THREE.LineBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0, depthWrite: false });
const palmPts = [
[0,0],[0.35,0.08],[0.45,0.45],[0.38,0.75],[0.08,0.95],
[-0.18,1.0],[-0.38,0.88],[-0.48,0.58],[-0.42,0.28],[-0.28,0],[0,0]
].map(p => new THREE.Vector3(p[0], p[1], 0));
handGroup.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints(palmPts), handMat));
function makeFinger(sx, sy, len, ang) {
const pts = [];
for (let i = 0; i <= 10; i++) {
const t = i/10;
pts.push(new THREE.Vector3(sx + Math.sin(ang)*len*t, sy + Math.cos(ang)*len*t, Math.sin(t*Math.PI)*0.04));
}
return pts;
}
const fingers = [
makeFinger(0.08, 0.95, 0.38, 0.08),
makeFinger(0.22, 0.85, 0.42, 0.03),
makeFinger(0.32, 0.68, 0.38, -0.06),
makeFinger(0.33, 0.48, 0.28, -0.18),
makeFinger(-0.08, 0.88, 0.22, 0.32)
];
fingers.forEach(pts => handGroup.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints(pts), handMat)));
const touchDots = [];
const touchDotGeo = new THREE.SphereGeometry(0.022, 8, 8);
fingers.forEach((pts, i) => {
const mat = new THREE.MeshBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0 });
const tip = pts[pts.length - 1];
const mesh = new THREE.Mesh(touchDotGeo, mat);
mesh.position.copy(tip);
handGroup.add(mesh);
touchDots.push({ mesh, mat, tip: tip.clone() });
});
const connLineMat = new THREE.LineBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0, depthWrite: false });
const connLines = [];
for (let i = 0; i < 5; i++) {
const geo = new THREE.BufferGeometry().setFromPoints([new THREE.Vector3(0,0,0), new THREE.Vector3(0,0,0)]);
const line = new THREE.Line(geo, connLineMat.clone());
handGroup.add(line);
connLines.push(line);
}
handGroup.position.set(1.3, 0.8, 1.6);
handGroup.rotation.y = -Math.PI * 0.3;
handGroup.rotation.z = -Math.PI * 0.08;
handGroup.scale.setScalar(1.6);
scene.add(handGroup);
/* ====== Interface State Metrics ====== */
let activeSolidKey = 'dodeca';
let isHovering = false;
let frequency = 0.5;
let flowerTargetScale = 0.01;
let flowerCurrentScale = 0.01;
let handTargetOpacity = 0;
let handCurrentOpacity = 0;
/* ====== Node Measurement State ====== */
let activeSelectedNodes = [];
let lastMeasurementNodes = [];
let specimenLog = JSON.parse(localStorage.getItem('specimens:log') || '[]');
let measurementCounter = specimenLog.length;
const measurementLineMat = new THREE.LineBasicMaterial({ color: 0x4ade80, linewidth: 2, depthWrite: false });
const measurementLineGeo = new THREE.BufferGeometry().setFromPoints([new THREE.Vector3(), new THREE.Vector3()]);
const measurementLine = new THREE.Line(measurementLineGeo, measurementLineMat);
measurementLine.visible = false;
scene.add(measurementLine);
const connectionGroup = new THREE.Group();
scene.add(connectionGroup);
let connectionLines = [];
const connectionLineMaterial = new THREE.LineBasicMaterial({ color: 0x4ade80, transparent: true, opacity: 0.85, depthWrite: false });
const sketchLineMaterial = new THREE.LineBasicMaterial({ color: 0x7c3aed, transparent: true, opacity: 0.9, depthWrite: false });
const sketchGroup = new THREE.Group();
scene.add(sketchGroup);
let sketchLines = [];
let sketchAnchorNode = null;
const previewLineMat = new THREE.LineDashedMaterial({ color: 0x4ade80, transparent: true, opacity: 0.5, dashSize: 0.08, gapSize: 0.06, depthWrite: false });
const previewLineGeo = new THREE.BufferGeometry().setFromPoints([new THREE.Vector3(), new THREE.Vector3()]);
const previewLine = new THREE.Line(previewLineGeo, previewLineMat);
previewLine.computeLineDistances();
previewLine.visible = false;
scene.add(previewLine);
renderer.localClippingEnabled = true;
const cutPlane = new THREE.Plane(new THREE.Vector3(0, 1, 0), 0);
const cutPlaneGeo = new THREE.PlaneGeometry(5, 5);
const cutPlaneMesh = new THREE.Mesh(cutPlaneGeo, new THREE.MeshBasicMaterial({ color: 0x4ade80, transparent: true, opacity: 0.12, side: THREE.DoubleSide, depthWrite: false }));
cutPlaneMesh.rotation.x = -Math.PI / 2;
cutPlaneMesh.position.y = 0;
cutPlaneMesh.visible = false;
scene.add(cutPlaneMesh);
const customGroup = new THREE.Group();
scene.add(customGroup);
let customPoints = [];
let customPointCounter = 0;
/* construction plane — click surface for CUSTOM mode point placement */
const constructionPlaneFill = new THREE.Mesh(
new THREE.CircleGeometry(3.2, 64),
new THREE.MeshBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0.04, side: THREE.DoubleSide, depthWrite: false })
);
constructionPlaneFill.rotation.x = -Math.PI / 2;
constructionPlaneFill.position.y = 1.5;
constructionPlaneFill.visible = false;
scene.add(constructionPlaneFill);
const constructionPlaneGroup = new THREE.Group();
constructionPlaneGroup.position.y = 1.5;
constructionPlaneGroup.visible = false;
scene.add(constructionPlaneGroup);
const cpRingMat = new THREE.LineBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0.3, depthWrite: false });
const cpRingPts = [];
for (let i = 0; i <= 64; i++) { const a = (i / 64) * Math.PI * 2; cpRingPts.push(new THREE.Vector3(Math.cos(a) * 3.2, 0, Math.sin(a) * 3.2)); }
constructionPlaneGroup.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints(cpRingPts), cpRingMat));
const cpAxisMat = new THREE.LineBasicMaterial({ color: 0xd4a03c, transparent: true, opacity: 0.15, depthWrite: false });
constructionPlaneGroup.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints([new THREE.Vector3(-3.2, 0, 0), new THREE.Vector3(3.2, 0, 0)]), cpAxisMat));
constructionPlaneGroup.add(new THREE.Line(new THREE.BufferGeometry().setFromPoints([new THREE.Vector3(0, 0, -3.2), new THREE.Vector3(0, 0, 3.2)]), cpAxisMat));
const measurementLogEl = document.getElementById('measurement-log');
const clearConnectionsBtn = document.getElementById('clear-connections-btn');
const modeLabelEl = document.querySelector('.mode-indicator');
let interactionMode = 'CONNECT';
let hoveredDot = null;
let hoveredConnection = null;
const modeButtons = document.querySelectorAll('.mode-button');
function setInteractionMode(mode) {
const previousMode = interactionMode;
interactionMode = mode;
modeButtons.forEach(btn => btn.classList.toggle('active', btn.dataset.mode === mode));
if (modeLabelEl) modeLabelEl.textContent = `MODE: ${mode}`;
document.body.style.cursor = mode === 'DISCONNECT' ? 'not-allowed' : 'crosshair';
previewLine.visible = false;
if (mode === 'CUSTOM') {
constructionPlaneFill.visible = true;
constructionPlaneGroup.visible = true;
if (coreMat) coreMat.opacity = 0.015;
if (edgesMat) edgesMat.opacity = 0.1;
coreGroup.children.forEach(child => { if (child.userData?.isVertexDot) child.visible = false; });
document.querySelector('.footer-text').innerHTML = `<span style="color:#4ade80">CUSTOM MODE</span> // CLICK PLANE TO PLACE POINTS / CLICK DOTS TO CONNECT`;
} else {
constructionPlaneFill.visible = false;
constructionPlaneGroup.visible = false;
if (coreMat) coreMat.opacity = 0.06;
coreGroup.children.forEach(child => { if (child.userData?.isVertexDot) child.visible = true; });
transformControls.detach();
setActiveSelection(null);
}
if (mode !== 'CUT') {
cutPlane.constant = 0;
if (currentMesh) currentMesh.material.clippingPlanes = [];
if (currentWireframe) currentWireframe.material.clippingPlanes = [];
cutPlaneMesh.visible = false;
coreGroup.children.forEach(child => { if (child.userData?.isVertexDot) child.material.clippingPlanes = []; });
}
if (mode !== 'SKETCH') {
sketchAnchorNode = null;
}
if (resonanceControlEl) resonanceControlEl.style.display = mode === 'RESONANCE' ? 'block' : 'none';
if (mode === 'RESONANCE') {
document.querySelector('.footer-text').innerHTML = `<span style="color:#4ade80">RESONANCE MODE</span> // UPLOAD A FILE OR ENABLE MIC TO DRIVE THE FIELD`;
}
if (previousMode === 'RESONANCE' && mode !== 'RESONANCE') {
teardownAudioGraph();
resetAllVerticesToRest();
}
updateMeasurementDisplay();
}
function resetDotHighlight(dot) {
if (!dot) return;
if (activeSelectedNodes.includes(dot)) {
dot.material.color.set(0x4ade80);
} else {
dot.material.color.set(0xd4a03c);
}
}
function updateHoverState() {
if (hoveredDot && !activeSelectedNodes.includes(hoveredDot)) {
hoveredDot.material.color.set(0xd4a03c);
}
if (hoveredConnection) {
hoveredConnection.material.opacity = 0.85;
}
hoveredDot = null;
hoveredConnection = null;
}
function highlightDot(dot) {
if (!dot || activeSelectedNodes.includes(dot)) return;
dot.material.color.set(0xffffff);
hoveredDot = dot;
}
function highlightConnection(line) {
if (!line) return;
line.material.opacity = 1.0;
hoveredConnection = line;
}
function clearHighlights() {
if (hoveredDot) {
resetDotHighlight(hoveredDot);
hoveredDot = null;
}
if (hoveredConnection) {
hoveredConnection.material.opacity = 0.85;
hoveredConnection = null;
}
}
function placeCustomPoint(worldPos) {
customPointCounter++;
const mat = new THREE.MeshBasicMaterial({ color: 0xd4a03c });
const dot = new THREE.Mesh(vertDotGeo, mat);
dot.name = 'vertex-dot';
dot.userData.isVertexDot = true;
dot.userData.isCustomPoint = true;
dot.userData.vertexId = `cust-${customPointCounter}`;
dot.position.copy(worldPos);
cacheRestState(dot, constructionPlaneFill.position);
customGroup.add(dot);
customPoints.push(dot);
return dot;
}
function clearCustomPoints() {
transformControls.detach();
customPoints.forEach(dot => customGroup.remove(dot));
customPoints = [];
}
function clearConnectionLines() {
connectionLines.forEach(line => connectionGroup.remove(line));
connectionLines = [];
sketchLines.forEach(line => sketchGroup.remove(line));
sketchLines = [];
clearCustomPoints();
drawStencilViews();
}
function setStencilProjection(view) {
activeProjectionView = view;
document.querySelectorAll('.blueprint-section').forEach(section => {
section.classList.toggle('active', section.dataset.view === view);
});
const stencilBadge = document.getElementById('stencil-badge');
if (stencilBadge) {
stencilBadge.textContent = view.toUpperCase();
}
const labelMap = { net: 'NET VIEW', ortho: 'ORTHO VIEW', detail: 'DETAIL VIEW' };
const activeRead = solidReadouts[activeSolidKey] || solidReadouts.dodeca;
document.querySelector('.stencil-readout').innerHTML = `
PROJECTION TYPE: <span>${labelMap[view] || 'LIVE BLUEPRINT'}</span><br>
SCALE: <span>1:1.618</span> | UNIT: <span>φ-relative</span><br>
FACES: <span>${activeRead[1]}</span> | EDGES: <span>${activeRead[2]}</span> | VERTICES: <span>${activeRead[3]}</span>
`;
}
function updateMeasurementLog() {
if (!measurementLogEl) return;
if (specimenLog.length === 0) {
measurementLogEl.innerHTML = '<div class="measurement-row">NO LINKS YET</div>';
return;
}
measurementLogEl.innerHTML = specimenLog.slice(-8).reverse().map(entry => `
<div class="measurement-row">${entry.id} // ${entry.distance.toFixed(3)} φ • ${entry.originRelativeAngleDeg.toFixed(1)}° • ${entry.edgeDirectionDeg.azimuth.toFixed(1)}° az</div>
`).join('');
}
function updateMeasurementDisplay() {
if (lastMeasurementNodes.length === 2) {
const p1 = new THREE.Vector3().setFromMatrixPosition(lastMeasurementNodes[0].matrixWorld);
const p2 = new THREE.Vector3().setFromMatrixPosition(lastMeasurementNodes[1].matrixWorld);
const distance = p1.distanceTo(p2);
const angleRad = p1.angleTo(p2);
const angleDeg = angleRad * (180 / Math.PI);
const posArr = measurementLine.geometry.attributes.position;
posArr.setXYZ(0, p1.x, p1.y, p1.z);
posArr.setXYZ(1, p2.x, p2.y, p2.z);
posArr.needsUpdate = true;
measurementLine.visible = true;
document.querySelector('.footer-text').innerHTML = `
<span style="color:#4ade80">LINK ACTIVE</span> // DISTANCE: <span style="color:#4ade80">${distance.toFixed(4)} φ-units</span>
| ANGLE: <span style="color:#4ade80">${angleDeg.toFixed(2)}°</span>
`;
} else if (activeSelectedNodes.length === 1) {
measurementLine.visible = false;
document.querySelector('.footer-text').innerHTML = `<span style="color:#4ade80">NODE SELECTED</span> // CHOOSE A SECOND NODE TO LINK...`;
} else {
measurementLine.visible = false;
document.querySelector('.footer-text').innerHTML = `<span>CLICK</span> DOTS TO MEASURE / <span>CONNECT</span> SHAPES`;
}
}
function getVertexDots() {
const native = coreGroup.children.filter(child => child.userData?.isVertexDot || child.name === 'vertex-dot');
return [...native, ...customPoints];
}
function getVertexPositions() {
return getVertexDots().map(dot => {
const worldPos = new THREE.Vector3();
dot.getWorldPosition(worldPos);
return { dot, position: worldPos };
});
}
function findFaceLoops() {
const vertices = getVertexDots();
if (vertices.length < 3 || connectionLines.length < 2) return [];
const adjacency = new Map();
vertices.forEach(dot => adjacency.set(dot, []));
connectionLines.forEach(line => {
const a = line.userData.nodeA;
const b = line.userData.nodeB;
if (adjacency.has(a) && adjacency.has(b)) {
adjacency.get(a).push(b);
adjacency.get(b).push(a);
}
});
const loops = [];
const seen = new Set();
function dfs(start, current, path, visited) {
for (const next of adjacency.get(current) || []) {
if (next === start && path.length >= 3) {
const key = path.map(node => node.uuid).join('|');
if (!seen.has(key)) {
seen.add(key);
loops.push(path.slice());
}
continue;
}
if (visited.has(next.uuid)) continue;
visited.add(next.uuid);
path.push(next);
dfs(start, next, path, visited);
path.pop();
visited.delete(next.uuid);
}
}
vertices.forEach(start => {
dfs(start, start, [start], new Set([start.uuid]));
});
return loops.slice(0, 4);
}
function projectVertexToCanvas(position, view, focus) {
const p = position.clone();
if (view === 'net') {
p.applyAxisAngle(new THREE.Vector3(0, 1, 0), -0.7);
p.applyAxisAngle(new THREE.Vector3(1, 0, 0), -0.35);
return { x: p.x * 1.2, y: p.y * 1.2 };
}
if (view === 'detail') {
const local = focus ? p.clone().sub(focus) : p;
return { x: local.x * 1.4, y: local.z * 1.4 };
}
return { x: p.x, y: p.z };
}
function drawStencilView(view) {
const canvasId = view === 'net' ? 'net-canvas' : view === 'ortho' ? 'ortho-canvas' : 'detail-canvas';
const canvas = document.getElementById(canvasId);
if (!canvas) return;
const ctx = canvas.getContext('2d');
const width = canvas.width;
const height = canvas.height;
ctx.clearRect(0, 0, width, height);
ctx.strokeStyle = 'rgba(255,255,255,0.04)';
ctx.lineWidth = 0.5;
for (let x = 0; x < width; x += 10) {
ctx.beginPath(); ctx.moveTo(x, 0); ctx.lineTo(x, height); ctx.stroke();
}
for (let y = 0; y < height; y += 10) {
ctx.beginPath(); ctx.moveTo(0, y); ctx.lineTo(width, y); ctx.stroke();
}
const vertices = getVertexPositions();
if (vertices.length === 0) return;
const focus = view === 'detail' ? vertices[0].position.clone() : null;
const projected = vertices.map(v => ({ ...v, ...projectVertexToCanvas(v.position, view, focus) }));
const centerX = width / 2;
const centerY = height / 2;
const scale = Math.min(width, height) * 0.16;
projected.forEach(v => {
v.x = centerX + v.x * scale;
v.y = centerY - v.y * scale;
});
const loops = findFaceLoops();
loops.forEach(loop => {
const pts = loop.map(node => {
const match = projected.find(v => v.dot === node);
return match ? { x: match.x, y: match.y } : null;
}).filter(Boolean);
if (pts.length < 3) return;
ctx.beginPath();
ctx.moveTo(pts[0].x, pts[0].y);
pts.slice(1).forEach(pt => ctx.lineTo(pt.x, pt.y));
ctx.closePath();
ctx.fillStyle = 'rgba(74,222,128,0.08)';
ctx.fill();
ctx.strokeStyle = 'rgba(74,222,128,0.7)';
ctx.lineWidth = 1.2;
ctx.stroke();
});
connectionLines.forEach(line => {
const a = projected.find(v => v.dot === line.userData.nodeA);
const b = projected.find(v => v.dot === line.userData.nodeB);
if (!a || !b) return;
ctx.beginPath();
ctx.moveTo(a.x, a.y);
ctx.lineTo(b.x, b.y);
ctx.strokeStyle = 'rgba(212, 160, 60, 0.7)';
ctx.lineWidth = 1.1;
ctx.stroke();
});
sketchLines.forEach(line => {
const a = projected.find(v => v.dot === line.userData.nodeA);
const b = projected.find(v => v.dot === line.userData.nodeB);
if (!a || !b) return;
ctx.beginPath();
ctx.moveTo(a.x, a.y);
ctx.lineTo(b.x, b.y);
ctx.strokeStyle = 'rgba(124, 58, 237, 0.75)';
ctx.lineWidth = 1.1;
ctx.stroke();
});
projected.forEach(v => {
ctx.beginPath();
ctx.arc(v.x, v.y, 2.2, 0, Math.PI * 2);
ctx.fillStyle = 'rgba(212, 160, 60, 0.9)';
ctx.fill();