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Percen authored58f7a894
<!doctype html><html lang="de"><head> <meta charset="UTF-8"> <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; } .container { text-align: center; background-color: rgba(0, 0, 0, 0.5); padding: 50px; border-radius: 10px; 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; } #menu-bar { position: absolute; bottom: 0; width: 100%; background: rgba(0, 0, 0, 0.4); color: white; display: none; justify-content: space-around; padding: 10px; z-index: 10; } .menu-item { cursor: pointer; padding: 10px 20px; background: rgba(255, 255, 255, 0.1); border-radius: 5px; transition: background-color 0.3s; } .menu-item:hover { background: rgba(255, 255, 255, 0.3); } .menu-item.active { background: rgba(255, 255, 255, 0.5); font-weight: bold; }
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button {
background-color: #4CAF50;
color: white;
font-size: 1.5em;
padding: 15px 30px;
border: none;
border-radius: 5px;
cursor: pointer;
transition: background-color 0.3s;
margin: 10px;
}
button:hover {
background-color: #45a049;
}
button:active {
background-color: #387a39;
}
#confirmation-dialog {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
z-index: 20;
}
.dialog-overlay {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.5);
}
.dialog-box {
position: relative;
background: white;
padding: 20px;
border-radius: 8px;
text-align: center;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}
.dialog-box button {
margin: 5px;
padding: 10px 20px;
font-size: 16px;
border: none;
border-radius: 5px;
cursor: pointer;
}
.dialog-box button:first-child {
background-color: #e74c3c;
color: white;
}
.dialog-box button:last-child {
background-color: #3498db;
color: white;
}
</style>
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<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>
<div id="menu-bar">
<div class="menu-item active" id="robot-item" onclick="selectModel('robot')">
<img src="previewImages/robot.png" alt="Roboter" style="width: 50px; height: 50px;">
</div>
<div class="menu-item" id="sunflower-item" onclick="selectModel('sunflower')">
<img src="previewImages/sunflower.png" alt="Sonnenblume" style="width: 50px; height: 50px;">
</div>
<div class="menu-item" id="lantern-item" onclick="selectModel('tree')">
<img src="previewImages/tree.png" alt="Baum" style="width: 50px; height: 50px;">
</div>
<div class="menu-item" id="exit-item" onclick="exitAR()">
<img src="previewImages/exit.png" alt="Exit" style="width: 50px; height: 50px;">
</div>
</div>
<div id="confirmation-dialog" style="display: none;">
<div class="dialog-overlay"></div>
<div class="dialog-box">
<p>Möchten Sie die AR-Session wirklich verlassen?</p>
<button onclick="confirmExit(true)">Ja</button>
<button onclick="confirmExit(false)">Nein</button>
</div>
</div>
<script>
let selectedModel = 'robot'; // Start mit dem Roboter
let models = {};
let reticle;
let lastClickTime = 0; // Zeit des letzten Klicks
const doubleClickThreshold = 300; // Zeitspanne für Doppelklick in Millisekunden
let placedModel = null;
let currentSession = null; // AR-Sitzung
function updateMenu() {
document.querySelectorAll('.menu-item').forEach(item => item.classList.remove('active'));
document.getElementById(`${selectedModel}-item`).classList.add('active');
}
function selectModel(modelId) {
selectedModel = modelId;
console.log(`Modell ausgewählt: ${selectedModel}`);
updateMenu();
}
async function activateXR() {
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;
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera();
camera.matrixAutoUpdate = false;
// Licht hinzufügen
const light = new THREE.DirectionalLight(0xffffff, 1);
light.position.set(10, 10, 10);
scene.add(light);
// Reticle (Cursor)
const loader = new THREE.GLTFLoader();
loader.load("https://immersive-web.github.io/webxr-samples/media/gltf/reticle/reticle.gltf", (gltf) => {
reticle = gltf.scene;
reticle.visible = false;
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scene.add(reticle);
});
// Modelle laden
loader.load("https://threejs.org/examples/models/gltf/RobotExpressive/RobotExpressive.glb", (gltf) => {
models.robot = gltf.scene;
});
//https://immersive-web.github.io/webxr-samples/media/gltf/sunflower/sunflower.gltf
loader.load("https://transfer.hft-stuttgart.de/gitlab/geovistoogsi/ar/-/raw/master/public/assets/models/trash_model/scene.gltf", (gltf) => {
models.sunflower = gltf.scene;
models.sunflower.scale.set(0.07, 0.07, 0.07);
});
loader.load("https://raw.githubusercontent.com/KhronosGroup/glTF-Sample-Assets/refs/heads/main/Models/Lantern/glTF/Lantern.gltf", (gltf) => {
models.tree = gltf.scene;
models.tree.scale.set(0.1, 0.1, 0.1); // Skaliert das Modell auf 50% der Originalgröße
});
// AR-Session starten
currentSession = await navigator.xr.requestSession('immersive-ar', {
optionalFeatures: ["dom-overlay"],
domOverlay: { root: document.body },
requiredFeatures: ['hit-test']
});
currentSession.updateRenderState({ baseLayer: new XRWebGLLayer(currentSession, gl) });
const referenceSpace = await currentSession.requestReferenceSpace('local');
const viewerSpace = await currentSession.requestReferenceSpace('viewer');
const hitTestSource = await currentSession.requestHitTestSource({ space: viewerSpace });
// Menü sichtbar machen
document.getElementById('menu-bar').style.display = 'flex';
currentSession.requestAnimationFrame(onXRFrame);
currentSession.addEventListener("select", (event) => {
if (!reticle) return;
// Prüfen, ob es ein Doppelklick ist
const currentTime = Date.now();
const timeDiff = currentTime - lastClickTime;
if (timeDiff < doubleClickThreshold) {
// Doppelklick erkannt, Modell wechseln
selectedModel = selectedModel === 'robot' ? 'sunflower' : selectedModel === 'sunflower' ? 'tree' : 'robot';
console.log(`${selectedModel.charAt(0).toUpperCase() + selectedModel.slice(1)} ausgewählt`);
updateMenu();
} else {
// Einzelner Klick – Modell platzieren
if (models[selectedModel]) {
const clone = models[selectedModel].clone();
clone.position.copy(reticle.position);
scene.add(clone);
placedModel = clone;
console.log(`${selectedModel} platziert`);
}
}
// Zeit des letzten Klicks aktualisieren
lastClickTime = currentTime;
});
currentSession.addEventListener("end", () => {
console.log("AR-Session beendet");
currentSession = null;
document.getElementById('menu-bar').style.display = 'none'; // Menü ausblenden
});
// AR-Rendering
function onXRFrame(time, frame) {
currentSession.requestAnimationFrame(onXRFrame);
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gl.bindFramebuffer(gl.FRAMEBUFFER, currentSession.renderState.baseLayer.framebuffer);
const pose = frame.getViewerPose(referenceSpace);
if (pose) {
const view = pose.views[0];
const viewport = currentSession.renderState.baseLayer.getViewport(view);
renderer.setSize(viewport.width, viewport.height);
camera.matrix.fromArray(view.transform.matrix);
camera.projectionMatrix.fromArray(view.projectionMatrix);
camera.updateMatrixWorld(true);
// Reticle Position
const hitTestResults = frame.getHitTestResults(hitTestSource);
if (hitTestResults.length > 0) {
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);
}
renderer.render(scene, camera);
}
}
}
function exitAR() {
document.getElementById('confirmation-dialog').style.display = 'flex'; // Dialog anzeigen
}
function confirmExit(shouldExit) {
if (shouldExit) {
if (currentSession) {
currentSession.end(); // Beende die AR-Session
}
}
document.getElementById('confirmation-dialog').style.display = 'none'; // Dialog ausblenden
}
// AR starten
if (navigator.xr) {
const startButton = document.createElement('button');
startButton.textContent = 'Start AR';
startButton.style.cssText = "position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); padding: 15px; font-size: 18px;";
document.body.appendChild(startButton);
startButton.onclick = () => {
startButton.remove();
activateXR();
};
} else {
alert('WebXR wird nicht unterstützt.');
}
</script>
</body>
</html>