three.js获取宽度

// 初始化渲染器
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

// 获取视口宽度
const viewportWidth = window.innerWidth;
console.log('Viewport Width:', viewportWidth);

// 创建一个立方体
const geometry = new THREE.BoxGeometry(1, 1, 1); // 参数分别为宽度、高度、深度
const material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
const cube = new THREE.Mesh(geometry, material);

// 将立方体添加到场景中
scene.add(cube);

// 获取立方体的宽度
const objectWidth = geometry.parameters.width;
console.log('Object Width:', objectWidth);

window.addEventListener('resize', onWindowResize, false);

function onWindowResize() {
    camera.aspect = window.innerWidth / window.innerHeight;
    camera.updateProjectionMatrix();
    renderer.setSize(window.innerWidth, window.innerHeight);
}

const boundingBox = new THREE.Box3().setFromObject(cube);
const width = boundingBox.max.x - boundingBox.min.x;
console.log('Calculated Width:', width);