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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>WiFi DensePose - 3D Visualization</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
width: 100%;
height: 100%;
overflow: hidden;
background: #050510;
font-family: 'Courier New', 'Consolas', monospace;
color: #88bbdd;
}
#viz-container {
width: 100%;
height: 100%;
position: relative;
}
#loading-overlay {
position: absolute;
top: 0; left: 0; right: 0; bottom: 0;
background: #050510;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
z-index: 9999;
transition: opacity 0.6s ease;
}
#loading-overlay.hidden {
opacity: 0;
pointer-events: none;
}
.loading-title {
font-size: 22px;
color: #aaddff;
margin-bottom: 16px;
letter-spacing: 4px;
text-transform: uppercase;
}
.loading-bar-track {
width: 280px;
height: 3px;
background: #112233;
border-radius: 2px;
overflow: hidden;
margin-bottom: 12px;
}
.loading-bar-fill {
height: 100%;
width: 0%;
background: linear-gradient(90deg, #0066ff, #00ccff);
border-radius: 2px;
transition: width 0.3s ease;
}
.loading-status {
font-size: 11px;
color: #446688;
}
/* Stats.js panel positioning */
#stats-container {
position: absolute;
top: 40px;
right: 140px;
z-index: 200;
}
</style>
</head>
<body>
<div id="viz-container">
<!-- Loading overlay -->
<div id="loading-overlay">
<div class="loading-title">WiFi DensePose</div>
<div class="loading-bar-track">
<div class="loading-bar-fill" id="loading-fill"></div>
</div>
<div class="loading-status" id="loading-status">Initializing...</div>
</div>
<!-- Stats.js container -->
<div id="stats-container"></div>
</div>
<!-- Three.js and OrbitControls from CDN -->
<script src="https://unpkg.com/three@0.160.0/build/three.min.js"></script>
<script src="https://unpkg.com/three@0.160.0/examples/js/controls/OrbitControls.js"></script>
<!-- Stats.js for performance monitoring -->
<script src="https://unpkg.com/stats.js@0.17.0/build/stats.min.js"></script>
<!-- Application modules loaded as ES modules via importmap workaround -->
<script type="module">
// Import all modules
import { Scene } from './components/scene.js';
import { BodyModel, BodyModelManager } from './components/body-model.js';
import { SignalVisualization } from './components/signal-viz.js';
import { Environment } from './components/environment.js';
import { DashboardHUD } from './components/dashboard-hud.js';
import { WebSocketClient } from './services/websocket-client.js';
import { DataProcessor } from './services/data-processor.js';
// -- Application State --
const state = {
scene: null,
environment: null,
bodyModelManager: null,
signalViz: null,
hud: null,
wsClient: null,
dataProcessor: null,
stats: null,
isDemoMode: true,
startTime: Date.now()
};
// -- Loading Progress --
function setLoadingProgress(pct, msg) {
const fill = document.getElementById('loading-fill');
const status = document.getElementById('loading-status');
if (fill) fill.style.width = pct + '%';
if (status) status.textContent = msg;
}
function hideLoading() {
const overlay = document.getElementById('loading-overlay');
if (overlay) overlay.classList.add('hidden');
setTimeout(() => {
if (overlay && overlay.parentNode) overlay.parentNode.removeChild(overlay);
}, 700);
}
// -- Initialize Stats.js --
function initStats() {
const stats = new Stats();
stats.showPanel(0); // FPS panel
stats.dom.style.position = 'relative';
document.getElementById('stats-container').appendChild(stats.dom);
return stats;
}
// -- Main Initialization --
async function init() {
const container = document.getElementById('viz-container');
try {
setLoadingProgress(10, 'Creating 3D scene...');
// 1. Scene setup
state.scene = new Scene(container);
setLoadingProgress(25, 'Building environment...');
// 2. Environment (room, grid, APs, zones)
state.environment = new Environment(state.scene.getScene());
setLoadingProgress(40, 'Preparing body models...');
// 3. Body model manager
state.bodyModelManager = new BodyModelManager(state.scene.getScene());
setLoadingProgress(55, 'Setting up signal visualization...');
// 4. Signal visualization
state.signalViz = new SignalVisualization(state.scene.getScene());
setLoadingProgress(65, 'Creating HUD...');
// 5. Dashboard HUD
state.hud = new DashboardHUD(container);
setLoadingProgress(75, 'Initializing data processor...');
// 6. Data processor
state.dataProcessor = new DataProcessor();
setLoadingProgress(80, 'Setting up Stats.js...');
// 7. Stats.js
state.stats = initStats();
setLoadingProgress(85, 'Connecting to server...');
// 8. WebSocket client
state.wsClient = new WebSocketClient({
url: 'ws://localhost:8000/ws/pose',
onMessage: (msg) => handleWebSocketMessage(msg),
onStateChange: (newState, oldState) => handleConnectionStateChange(newState, oldState),
onError: (err) => console.error('[VIZ] WebSocket error:', err)
});
// Attempt connection (will fall back to demo mode if server unavailable)
state.wsClient.connect();
setLoadingProgress(95, 'Starting render loop...');
// 9. Register the main update loop
state.scene.onUpdate((delta, elapsed) => {
mainUpdate(delta, elapsed);
});
// Start rendering
state.scene.start();
setLoadingProgress(100, 'Ready');
// Hide loading after a brief moment
setTimeout(hideLoading, 400);
console.log('[VIZ] Initialization complete');
} catch (err) {
console.error('[VIZ] Initialization failed:', err);
setLoadingProgress(100, 'Error: ' + err.message);
}
}
// -- Main Update Loop (called every frame) --
function mainUpdate(delta, elapsed) {
// Stats.js begin
if (state.stats) state.stats.begin();
// Determine data source
let vizData = null;
if (state.isDemoMode) {
// Generate demo data
vizData = state.dataProcessor.generateDemoData(delta);
// Generate demo signal data
const demoSignal = SignalVisualization.generateDemoData(elapsed);
state.signalViz.updateSignalData(demoSignal);
}
// If we have viz data (from demo or last processed real data), update visualizations
if (vizData) {
// Update body models
state.bodyModelManager.update(vizData.persons, delta);
// Update zone occupancy
state.environment.updateZoneOccupancy(vizData.zoneOccupancy);
// Update confidence heatmap
const heatmap = state.dataProcessor.generateConfidenceHeatmap(
vizData.persons, 20, 15, 8, 6
);
state.environment.updateConfidenceHeatmap(heatmap);
}
// Update environment animations (AP pulse, signal paths)
state.environment.update(delta, elapsed);
// Update signal visualization animations
state.signalViz.update(delta, elapsed);
// Update HUD
if (state.hud) {
state.hud.tickFPS();
const wsMetrics = state.wsClient.getMetrics();
state.hud.updateState({
connectionStatus: state.wsClient.state,
isRealData: state.wsClient.isRealData && !state.isDemoMode,
latency: wsMetrics.latency,
messageCount: wsMetrics.messageCount,
uptime: wsMetrics.uptime,
personCount: state.bodyModelManager.getActiveCount(),
confidence: state.bodyModelManager.getAverageConfidence(),
sensingMode: state.isDemoMode ? 'Mock' : (state.wsClient.isRealData ? 'CSI' : 'Mock')
});
}
// Stats.js end
if (state.stats) state.stats.end();
}
// -- Handle incoming WebSocket messages --
function handleWebSocketMessage(message) {
const processed = state.dataProcessor.processMessage(message);
if (!processed) return;
// Switch off demo mode when we get real data
if (processed.persons.length > 0) {
if (state.isDemoMode) {
state.isDemoMode = false;
console.log('[VIZ] Switched to live data mode');
}
// Update body models
state.bodyModelManager.update(processed.persons, 0.016);
// Update zone occupancy
state.environment.updateZoneOccupancy(processed.zoneOccupancy);
// Update signal data if available
if (processed.signalData) {
state.signalViz.updateSignalData(processed.signalData);
}
// Update confidence heatmap
const heatmap = state.dataProcessor.generateConfidenceHeatmap(
processed.persons, 20, 15, 8, 6
);
state.environment.updateConfidenceHeatmap(heatmap);
}
}
// -- Handle WebSocket connection state changes --
function handleConnectionStateChange(newState, oldState) {
console.log(`[VIZ] Connection: ${oldState} -> ${newState}`);
if (newState === 'connected') {
// Will switch from demo to real when data arrives
console.log('[VIZ] Connected to server, waiting for data...');
} else if (newState === 'error' || newState === 'disconnected') {
// Fall back to demo mode
if (!state.isDemoMode) {
state.isDemoMode = true;
console.log('[VIZ] Switched to demo mode (server unavailable)');
}
}
}
// -- Cleanup on page unload --
window.addEventListener('beforeunload', () => {
if (state.wsClient) state.wsClient.dispose();
if (state.bodyModelManager) state.bodyModelManager.dispose();
if (state.signalViz) state.signalViz.dispose();
if (state.environment) state.environment.dispose();
if (state.hud) state.hud.dispose();
if (state.scene) state.scene.dispose();
});
// -- Keyboard shortcuts --
document.addEventListener('keydown', (e) => {
switch (e.key.toLowerCase()) {
case 'r':
// Reset camera
if (state.scene) state.scene.resetCamera();
break;
case 'd':
// Toggle demo mode
state.isDemoMode = !state.isDemoMode;
console.log(`[VIZ] Demo mode: ${state.isDemoMode ? 'ON' : 'OFF'}`);
break;
case 'c':
// Force reconnect
if (state.wsClient) {
state.wsClient.disconnect();
state.wsClient.autoReconnect = true;
state.wsClient.reconnectAttempts = 0;
state.wsClient.connect();
}
break;
}
});
// -- Start --
init();
</script>
</body>
</html>
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