feature gps works

src/components/ebike/EbikeGPSMap.tsx

@@ -110,7 +110,6 @@ export const EbikeGPSMap: React.FC<EbikeGPSMapProps> = ({
     }
 
     const img = new Image();
-    img.crossOrigin = 'anonymous';
     img.onload = () => setMapImage(img);
     img.onerror = () => {
       console.warn(`[GPS Component] Failed to load map background image from ${mapImageUrl}. Falling back to dynamic vector map.`);
@@ -175,6 +174,7 @@ export const EbikeGPSMap: React.FC<EbikeGPSMapProps> = ({
   const draw = () => {
     const canvas = offscreenCanvas;
     const ctx = canvas.getContext('2d');
+    ctx.globalAlpha = 0.5;
     if (!ctx) return;
 
     const size = canvas.width;

src/pages/backgroundmap/page.tsx

@@ -0,0 +1,251 @@
+import React, { useState, useEffect, useRef, useMemo } from 'react';
+import { Canvas, useFrame, useThree } from '@react-three/fiber';
+import { MapControls, OrthographicCamera, useGLTF } from '@react-three/drei';
+import * as THREE from 'three';
+
+// ----------------------------------------------------------------------------
+// 1. Terrain Scene
+// ----------------------------------------------------------------------------
+function TerrainScene() {
+  const { scene } = useGLTF('/models/terrain/terrain.glb');
+  return (
+    <group>
+      <ambientLight intensity={1.5} />
+      <directionalLight position={[10, 20, 10]} intensity={2} />
+      <primitive object={scene} />
+    </group>
+  );
+}
+
+// ----------------------------------------------------------------------------
+// 2. Waypoint Overlay (Debug visualization)
+// ----------------------------------------------------------------------------
+function WaypointOverlay({ waypoints, visible }: { waypoints: any[], visible: boolean }) {
+  if (!visible) return null;
+  return (
+    <group>
+      {waypoints.map((w) => (
+        <mesh key={w.id} position={[w.x, w.y + 1, w.z]}>
+          <sphereGeometry args={[0.3, 16, 16]} />
+          <meshBasicMaterial color="#10b981" />
+        </mesh>
+      ))}
+    </group>
+  );
+}
+
+// ----------------------------------------------------------------------------
+// 3. Camera Manager (Handles Orthographic Math & Downloads)
+// ----------------------------------------------------------------------------
+function CameraManager({
+  autoBounds,
+  boundsTextRef
+}: {
+  autoBounds: any,
+  boundsTextRef: React.RefObject<HTMLPreElement>
+}) {
+  const { camera, gl, scene } = useThree();
+  const controlsRef = useRef<any>(null);
+
+  // Apply Auto-Bounds function
+  useEffect(() => {
+    const applyAutoBounds = () => {
+      if (camera instanceof THREE.OrthographicCamera && autoBounds) {
+        const width = autoBounds.maxX - autoBounds.minX;
+        const height = autoBounds.maxZ - autoBounds.minZ;
+        const centerX = (autoBounds.minX + autoBounds.maxX) / 2;
+        const centerZ = (autoBounds.minZ + autoBounds.maxZ) / 2;
+
+        camera.position.set(centerX, 200, centerZ);
+        camera.left = -width / 2;
+        camera.right = width / 2;
+        camera.top = height / 2;
+        camera.bottom = -height / 2;
+        camera.zoom = 1;
+        camera.updateProjectionMatrix();
+
+        if (controlsRef.current) {
+          controlsRef.current.target.set(centerX, 0, centerZ);
+          controlsRef.current.update();
+        }
+      }
+    };
+
+    (window as any).applyAutoBounds = applyAutoBounds;
+    // Initial apply
+    applyAutoBounds();
+
+    return () => { delete (window as any).applyAutoBounds; };
+  }, [camera, autoBounds]);
+
+  // Track dynamic bounds without triggering React re-renders!
+  useFrame(() => {
+    if (camera instanceof THREE.OrthographicCamera && boundsTextRef.current) {
+      const width = (camera.right - camera.left) / camera.zoom;
+      const height = (camera.top - camera.bottom) / camera.zoom;
+      const minX = Math.round(camera.position.x - width / 2);
+      const maxX = Math.round(camera.position.x + width / 2);
+      const minZ = Math.round(camera.position.z - height / 2);
+      const maxZ = Math.round(camera.position.z + height / 2);
+
+      // Direct DOM mutation for 60fps performance (prevents WebGL Context Lost!)
+      boundsTextRef.current.innerText = JSON.stringify({ minX, maxX, minZ, maxZ }, null, 2);
+    }
+  });
+
+  // Attach screenshot capture logic
+  useEffect(() => {
+    (window as any).downloadMapScreenshot = () => {
+      // Force an immediate render frame to ensure no UI overlays are missing
+      gl.render(scene, camera);
+      const dataUrl = gl.domElement.toDataURL("image/png");
+      const a = document.createElement("a");
+      a.href = dataUrl;
+      a.download = "map_background.png";
+      a.click();
+    };
+    return () => { delete (window as any).downloadMapScreenshot; };
+  }, [gl, camera, scene]);
+
+  return <MapControls ref={controlsRef} enableRotate={false} dampingFactor={0.05} />;
+}
+
+// ----------------------------------------------------------------------------
+// 4. Main Page Route Component
+// ----------------------------------------------------------------------------
+export function BackgroundMapPage() {
+  const [waypoints, setWaypoints] = useState<any[]>([]);
+  const [showWaypoints, setShowWaypoints] = useState(true);
+  const boundsTextRef = useRef<HTMLPreElement>(null);
+
+  // Load road network waypoints to compute perfect GPS bounds
+  useEffect(() => {
+    const saved = localStorage.getItem('la-fabrik-waypoints');
+    if (saved) {
+      setWaypoints(JSON.parse(saved));
+    } else {
+      fetch('/roadNetwork.json')
+        .then(res => res.json())
+        .then(data => setWaypoints(data))
+        .catch(() => { });
+    }
+  }, []);
+
+  // Compute exact bounds that the EbikeGPSMap will use by default
+  const autoBounds = useMemo(() => {
+    if (waypoints.length === 0) return null;
+    const xs = waypoints.map(w => w.x);
+    const zs = waypoints.map(w => w.z);
+    const minX = Math.min(...xs);
+    const maxX = Math.max(...xs);
+    const minZ = Math.min(...zs);
+    const maxZ = Math.max(...zs);
+
+    // CRITICAL: We MUST force the camera bounds to be a PERFECT SQUARE.
+    // If the camera is rectangular, the exported PNG will be distorted when drawn
+    // on the EbikeGPSMap's 1024x1024 canvas!
+    const width = maxX - minX;
+    const height = maxZ - minZ;
+    const maxDim = Math.max(width, height);
+    
+    const centerX = (minX + maxX) / 2;
+    const centerZ = (minZ + maxZ) / 2;
+
+    const paddedDim = maxDim * 1.15 || 100;
+
+    return {
+      minX: centerX - paddedDim / 2,
+      maxX: centerX + paddedDim / 2,
+      minZ: centerZ - paddedDim / 2,
+      maxZ: centerZ + paddedDim / 2,
+    };
+  }, [waypoints]);
+
+  return (
+    <div style={{ width: '100vw', height: '100vh', background: '#050505', display: 'flex', justifyContent: 'center', alignItems: 'center' }}>
+      {/* 
+        CRITICAL: The DOM element MUST be a perfect square so the resulting PNG 
+        is exactly 1:1, preventing stretching in the EbikeGPSMap canvas texture! 
+      */}
+      <div style={{ width: 'min(100vw, 100vh)', height: 'min(100vw, 100vh)', background: '#000', position: 'relative' }}>
+        <Canvas gl={{ preserveDrawingBuffer: true, antialias: true, alpha: false }}>
+          <OrthographicCamera makeDefault position={[0, 200, 0]} near={0.1} far={1000} />
+          <TerrainScene />
+          <WaypointOverlay waypoints={waypoints} visible={showWaypoints} />
+          <CameraManager autoBounds={autoBounds} boundsTextRef={boundsTextRef} />
+        </Canvas>
+      </div>
+
+      {/* Premium Glassmorphic UI Dashboard */}
+      <div style={{
+        position: 'absolute', top: 24, left: 24,
+        background: 'rgba(15, 23, 42, 0.85)', padding: 24,
+        borderRadius: 16, border: '1px solid #334155',
+        color: 'white', fontFamily: 'system-ui, sans-serif',
+        backdropFilter: 'blur(12px)', width: 360,
+        boxShadow: '0 20px 25px -5px rgba(0, 0, 0, 0.5)'
+      }}>
+        <h2 style={{ margin: '0 0 16px 0', fontSize: '1.4rem', color: '#38bdf8' }}>GPS Map Generator</h2>
+
+        <p style={{ fontSize: '0.9rem', color: '#94a3b8', marginBottom: 20, lineHeight: 1.5 }}>
+          1. Cadrez votre carte (ou utilisez le <b>Cadrage Automatique</b>).<br />
+          2. Masquez les waypoints (fond visuel seul).<br />
+          3. Cliquez sur <b>Capturer la carte</b>.
+        </p>
+
+        <button
+          onClick={() => setShowWaypoints(!showWaypoints)}
+          style={{
+            width: '100%', padding: '12px', marginBottom: 12,
+            background: showWaypoints ? '#1e293b' : '#334155',
+            border: '1px solid #475569', color: 'white',
+            borderRadius: 8, cursor: 'pointer', fontWeight: 600,
+            transition: 'all 0.2s'
+          }}
+        >
+          {showWaypoints ? '👁️ Masquer Waypoints' : '👁️‍🗨️ Afficher Waypoints'}
+        </button>
+
+        <button
+          onClick={() => {
+            if ((window as any).applyAutoBounds) (window as any).applyAutoBounds();
+          }}
+          style={{
+            width: '100%', padding: '12px', marginBottom: 16,
+            background: '#1e293b', border: '1px solid #475569',
+            color: '#10b981', borderRadius: 8, cursor: 'pointer', fontWeight: 600,
+            transition: 'all 0.2s'
+          }}
+        >
+          🎯 Cadrage Automatique
+        </button>
+
+        <button
+          onClick={() => {
+            if ((window as any).downloadMapScreenshot) (window as any).downloadMapScreenshot();
+          }}
+          style={{
+            width: '100%', padding: '14px', background: '#0ea5e9',
+            border: 'none', color: 'white', borderRadius: 8,
+            cursor: 'pointer', fontWeight: 'bold', fontSize: '1rem',
+            boxShadow: '0 4px 6px -1px rgba(14, 165, 233, 0.4)'
+          }}
+        >
+          📸 Capturer la carte (.png)
+        </button>
+
+        <div style={{ marginTop: 24, padding: 16, background: '#020617', borderRadius: 10, fontSize: '0.85rem' }}>
+          <div style={{ color: '#64748b', marginBottom: 8, fontWeight: 600 }}>Limites Actuelles (worldBounds):</div>
+          <pre ref={boundsTextRef} style={{ margin: 0, color: '#10b981', fontFamily: 'monospace' }}>
+            Calcul...
+          </pre>
+          <div style={{ color: '#ef4444', marginTop: 12, fontSize: '0.75rem', lineHeight: 1.4 }}>
+            *Si vous décadrez à la souris, vous devrez copier ces valeurs exactes dans la prop <code>worldBounds</code> de votre composant <b>EbikeGPSMap</b> !
+            <br /><br />
+            Astuce : Utilisez le <b>Cadrage Automatique</b> pour ne rien avoir à configurer.
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}

src/router.tsx

@@ -7,6 +7,7 @@ import {
 import { HomePage } from "@/pages/page";
 import { EditorPage } from "@/pages/editor/page";
 import { WaypointEditorPage } from "@/pages/waypoint/page";
+import { BackgroundMapPage } from "@/pages/backgroundmap/page";
 import {
   DocsAnimationRoute,
   DocsAudioRoute,
@@ -50,6 +51,12 @@ const waypointRoute = createRoute({
   component: WaypointEditorPage,
 });
 
+const backgroundMapRoute = createRoute({
+  getParentRoute: () => rootRoute,
+  path: "/backgroundmap",
+  component: BackgroundMapPage,
+});
+
 const docsRoute = createRoute({
   getParentRoute: () => rootRoute,
   path: "/docs",
@@ -86,6 +93,7 @@ const routeTree = rootRoute.addChildren([
   indexRoute,
   editorRoute,
   waypointRoute,
+  backgroundMapRoute,
   docsRoute.addChildren(docsChildRoutes),
 ]);
 

src/world/debug/TestMap.tsx

@@ -255,6 +255,13 @@ export function TestMap({ onOctreeReady }: TestMapProps): React.JSX.Element {
             height={4}
             startPos={{ x: 10, y: 0, z: -10 }}
             destPos={{ x: -40, y: 0, z: 30 }}
+            mapImageUrl="/map_background.png"
+            worldBounds={{
+              minX: -146, // Les valeurs exactes
+              maxX: 131,  // que l'outil t'aura 
+              minZ: -139, // affiché en temps réel !
+              maxZ: 138
+            }}
           />
         </group>
       </group>