From 5313c6cd02138dc7fa9801804cecd5ccb2ca2b41 Mon Sep 17 00:00:00 2001
From: Percen <21pesi1bif@hft-stuttgart.de>
Date: Thu, 12 Dec 2024 10:00:15 +0000
Subject: [PATCH] Update public/index.html

---
 public/index.html | 183 +++++++++++-----------------------------------
 1 file changed, 44 insertions(+), 139 deletions(-)

diff --git a/public/index.html b/public/index.html
index e254a13..59d1326 100644
--- a/public/index.html
+++ b/public/index.html
@@ -2,188 +2,100 @@
 <html lang="de">
 <head>
   <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>GeoVis AR Projekt</title>
-
   <style>
     body {
       margin: 0;
       font-family: Arial, sans-serif;
       background-color: #f0f0f0;
       color: #333;
-      display: flex;
-      justify-content: center;
-      align-items: center;
       height: 100vh;
-      background-image: url('https://www.hft-stuttgart.de/fileadmin/Dateien/Hochschule/-_R_Juergen_Pollak_HFT_18.04.18-0091.jpg');
-      background-size: cover;
-      background-position: center;
+      overflow: hidden;
     }
 
     .container {
+      position: absolute;
+      top: 50%;
+      left: 50%;
+      transform: translate(-50%, -50%);
       text-align: center;
-      background-color: rgba(0, 0, 0, 0.5);
-      padding: 50px;
-      border-radius: 10px;
+      background: rgba(0, 0, 0, 0.6);
       color: white;
-      max-width: 80%;
-      box-shadow: 0px 0px 15px rgba(0, 0, 0, 0.5);
-    }
-
-    h1 {
-      font-size: 3em;
-      margin-bottom: 20px;
-    }
-
-    p {
-      font-size: 1.2em;
-      margin-bottom: 30px;
+      padding: 20px;
+      border-radius: 10px;
     }
 
     button {
       background-color: #4CAF50;
       color: white;
-      font-size: 1.5em;
-      padding: 15px 30px;
+      padding: 10px 20px;
       border: none;
       border-radius: 5px;
       cursor: pointer;
-      transition: background-color 0.3s;
-      margin: 10px;
-    }
-
-    button:hover {
-      background-color: #45a049;
-    }
-
-    button:active {
-      background-color: #387a39;
-    }
-
-    .menu-bar {
-      position: fixed;
-      top: 0;
-      left: 0;
-      right: 0;
-      display: flex;
-      justify-content: center;
-      background-color: rgba(0, 0, 0, 0.7);
-      padding: 10px;
-      z-index: 10;
-    }
-
-    .menu-bar button {
-      background-color: #2196F3;
-    }
-
-    .menu-bar button:hover {
-      background-color: #1E88E5;
     }
   </style>
-
-  <!-- three.js -->
   <script src="https://unpkg.com/three@0.126.0/build/three.js"></script>
   <script src="https://unpkg.com/three@0.126.0/examples/js/loaders/GLTFLoader.js"></script>
 </head>
 <body>
-  <!-- Menüleiste -->
-  <div class="menu-bar">
-    <button onclick="selectModel('car')">Auto</button>
-    <button onclick="selectModel('lamp')">Laterne</button>
-  </div>
-
   <div class="container">
     <h1>GeoVis AR Projekt</h1>
-    <p>Mit Augmented Reality können Sie ihrer Fantasie freien Lauf lassen und ihre Stadt interaktiv gestalten!</p>
-    <button onclick="activateXR()">Start City Planning</button>
+    <p>Starte AR, um dein Menü zu sehen!</p>
+    <button onclick="activateXR()">Start AR</button>
   </div>
 
   <script>
-    let selectedModel = 'car'; // Standardmodell
-
-    function selectModel(model) {
-      selectedModel = model;
-      console.log(`Ausgewähltes Modell: ${model}`);
-    }
+    let menu; // Menü-Objekt
 
     async function activateXR() {
-      document.querySelector('.container').style.display = 'none'; // Startseite ausblenden
-      const canvas = document.createElement("canvas");
-      document.body.appendChild(canvas);
-      const gl = canvas.getContext("webgl", {xrCompatible: true});
-
-      const scene = new THREE.Scene();
-
-      const directionalLight = new THREE.DirectionalLight(0xffffff, 0.3);
-      directionalLight.position.set(10, 15, 10);
-      scene.add(directionalLight);
+      // UI ausblenden
+      document.querySelector('.container').style.display = 'none';
 
-      const renderer = new THREE.WebGLRenderer({
-        alpha: true,
-        preserveDrawingBuffer: true,
-        canvas: canvas,
-        context: gl
-      });
+      // WebGL-Renderer erstellen
+      const canvas = document.createElement('canvas');
+      document.body.appendChild(canvas);
+      const gl = canvas.getContext('webgl', { xrCompatible: true });
+      const renderer = new THREE.WebGLRenderer({ alpha: true, canvas, context: gl });
       renderer.autoClear = false;
 
+      // Szene und Kamera
+      const scene = new THREE.Scene();
       const camera = new THREE.PerspectiveCamera();
       camera.matrixAutoUpdate = false;
 
-      const session = await navigator.xr.requestSession("immersive-ar", {requiredFeatures: ['hit-test']});
-      session.updateRenderState({
-        baseLayer: new XRWebGLLayer(session, gl)
-      });
-
-      const referenceSpace = await session.requestReferenceSpace('local');
-      const viewerSpace = await session.requestReferenceSpace('viewer');
-      const hitTestSource = await session.requestHitTestSource({ space: viewerSpace });
+      // Licht hinzufügen
+      const light = new THREE.DirectionalLight(0xffffff, 1);
+      light.position.set(10, 10, 10);
+      scene.add(light);
 
-      const loader = new THREE.GLTFLoader();
-      let reticle;
-      loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/reticle/reticle.gltf", function(gltf) {
-        reticle = gltf.scene;
-        reticle.visible = false;
-        scene.add(reticle);
-      });
-
-      let models = {
-        car: null,
-        lamp: null
-      };
-
-      loader.load("https://threejs.org/examples/models/gltf/RobotExpressive/RobotExpressive.glb", function(gltf) {
-        models.car = gltf.scene;
-      });
+      // Menü erstellen
+      const menuGeometry = new THREE.PlaneGeometry(0.5, 0.25); // Größe kleiner für AR
+      const menuMaterial = new THREE.MeshBasicMaterial({ color: 0x2196F3, side: THREE.DoubleSide });
+      menu = new THREE.Mesh(menuGeometry, menuMaterial);
+      scene.add(menu);
 
-      loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/sunflower/sunflower.gltf", function(gltf) {
-        models.lamp = gltf.scene;
+      // AR-Session starten
+      const session = await navigator.xr.requestSession('immersive-ar', { requiredFeatures: ['local-floor'] });
+      session.updateRenderState({
+        baseLayer: new XRWebGLLayer(session, gl)
       });
+      const referenceSpace = await session.requestReferenceSpace('local-floor');
 
-      session.addEventListener("select", () => {
-        if (reticle && models[selectedModel]) {
-          const clone = models[selectedModel].clone();
-          clone.position.copy(reticle.position);
-          scene.add(clone);
-        }
-      });
+      session.requestAnimationFrame(onXRFrame);
 
-      // Menü vor der Kamera hinzufügen
-      let menu;
-      const menuGeometry = new THREE.PlaneGeometry(2, 0.5);
-      const menuMaterial = new THREE.MeshBasicMaterial({ color: 0x2196F3 });
-      menu = new THREE.Mesh(menuGeometry, menuMaterial);
-      scene.add(menu);
+      function onXRFrame(time, frame) {
+        const pose = frame.getViewerPose(referenceSpace);
 
-      const onXRFrame = (time, frame) => {
         session.requestAnimationFrame(onXRFrame);
         gl.bindFramebuffer(gl.FRAMEBUFFER, session.renderState.baseLayer.framebuffer);
 
-        const pose = frame.getViewerPose(referenceSpace);
         if (pose) {
           const view = pose.views[0];
           const viewport = session.renderState.baseLayer.getViewport(view);
           renderer.setSize(viewport.width, viewport.height);
 
+          // Kamera aktualisieren
           camera.matrix.fromArray(view.transform.matrix);
           camera.projectionMatrix.fromArray(view.projectionMatrix);
           camera.updateMatrixWorld(true);
@@ -191,25 +103,18 @@
           // Menü vor der Kamera platzieren
           const cameraPosition = new THREE.Vector3();
           camera.getWorldPosition(cameraPosition);
+
           const cameraDirection = new THREE.Vector3();
           camera.getWorldDirection(cameraDirection);
 
           menu.position.copy(cameraPosition);
-          menu.position.add(cameraDirection.multiplyScalar(2)); // 2 Meter vor der Kamera
+          menu.position.add(cameraDirection.multiplyScalar(1)); // 1 Meter vor der Kamera
           menu.lookAt(cameraPosition);
 
-          const hitTestResults = frame.getHitTestResults(hitTestSource);
-          if (hitTestResults.length > 0 && reticle) {
-            const hitPose = hitTestResults[0].getPose(referenceSpace);
-            reticle.visible = true;
-            reticle.position.set(hitPose.transform.position.x, hitPose.transform.position.y, hitPose.transform.position.z);
-            reticle.updateMatrixWorld(true);
-          }
-
+          // Szene rendern
           renderer.render(scene, camera);
         }
-      };
-      session.requestAnimationFrame(onXRFrame);
+      }
     }
   </script>
 </body>
-- 
GitLab