|  |  | 
 |  |  | import { FBXLoader } from 'three/examples/jsm/loaders/FBXLoader' | 
 |  |  | import * as Utils from '../../utils' | 
 |  |  |  | 
 |  |  | const help = true; | 
 |  |  | const help = false; | 
 |  |  |  | 
 |  |  | export default class ShelfThree { | 
 |  |  |  | 
 |  |  | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     getFullWidth = () => { | 
 |  |  |         return this.dom.offsetWidth; | 
 |  |  |         return this.dom?.offsetWidth; | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     getFullHeight = () => { | 
 |  |  |         return this.dom.offsetHeight; | 
 |  |  |         return this.dom?.offsetHeight; | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     addObject = (object) => { | 
 |  |  | 
 |  |  |  | 
 |  |  |     initScene = () => { | 
 |  |  |         const scene = new THREE.Scene(); | 
 |  |  |         // scene.background = new THREE.Color(0xf0f0f0); | 
 |  |  |         // scene.background = new THREE.Color(0x333333); | 
 |  |  |  | 
 |  |  |         // scene.background = new THREE.Color(0xf8f8f8); | 
 |  |  |         scene.background = new THREE.Color(0x7a7a7a); | 
 |  |  |         scene.fog = new THREE.Fog(scene.background, 1, 5000); | 
 |  |  | 
 |  |  |         renderer.toneMapping = THREE.ACESFilmicToneMapping; | 
 |  |  |         renderer.setPixelRatio(window.devicePixelRatio); | 
 |  |  |         renderer.setSize(this.getFullWidth(), this.getFullHeight()); | 
 |  |  |         this.dom.appendChild(renderer.domElement); | 
 |  |  |         this.dom?.appendChild(renderer.domElement); | 
 |  |  |         return renderer; | 
 |  |  |     } | 
 |  |  |  | 
 |  |  | 
 |  |  |     initControls = () => { | 
 |  |  |         const controls = new OrbitControls(this.camera, this.renderer.domElement); | 
 |  |  |         // controls.enableRotate = false; // 禁用整体旋转功能 | 
 |  |  |         controls.enablePan = true; // 允许平移 | 
 |  |  |         controls.enablePan = false; // 允许平移 | 
 |  |  |         controls.enableDamping = true;   // 开启阻尼 | 
 |  |  |         controls.dampingFactor = 0.08; // 阻尼因子 | 
 |  |  |         controls.enableZoom = true; // 允许缩放 | 
 |  |  |         // controls.minDistance = 1; // 最小缩放距离 | 
 |  |  |         // controls.maxDistance = 30; // 最大缩放距离 | 
 |  |  |         controls.minPolarAngle = 0; // 最小俯仰角度(向下看) | 
 |  |  |         // controls.minPolarAngle = Math.PI / 2.1; | 
 |  |  |         controls.minPolarAngle = Math.PI / 2.1; | 
 |  |  |         controls.maxPolarAngle = Math.PI / 2.1; // 最大俯仰角度(向上看) | 
 |  |  |         controls.rotateSpeed = 0.6; // 视角移动速度减慢 | 
 |  |  |         controls.autoRotate = true; // 自动旋转 | 
 |  |  | 
 |  |  |  | 
 |  |  |     initStats = () => { | 
 |  |  |         const stats = new Stats(); | 
 |  |  |         this.dom.appendChild(stats.dom); | 
 |  |  |         this.dom?.appendChild(stats.dom); | 
 |  |  |         if (!help) { | 
 |  |  |             stats.domElement.style.display = 'none'; | 
 |  |  |         } | 
 |  |  | 
 |  |  |                 this.handleClick(objName, x, y); | 
 |  |  |             } | 
 |  |  |         } | 
 |  |  |         this.dom.addEventListener("click", this.handleClickEvent, false); | 
 |  |  |         this.dom?.addEventListener("click", this.handleClickEvent, false); | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     generateMesh = (fn) => { | 
 |  |  | 
 |  |  |                 break; | 
 |  |  |             } | 
 |  |  |         } | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     rePerspective = (maxHeight) => { | 
 |  |  |         const cameraPosScale = 0.7; | 
 |  |  |         this.camera.position.set(-maxHeight * cameraPosScale, maxHeight * cameraPosScale, maxHeight * cameraPosScale); | 
 |  |  |         this.controls.target = new THREE.Vector3(0, maxHeight * 0.53, 0); | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     destroy = () => { | 
 |  |  | 
 |  |  |             this.controls.dispose(); | 
 |  |  |             this.controls = null; | 
 |  |  |         } | 
 |  |  |         this.dom.removeEventListener("click", this.handleClickEvent); | 
 |  |  |         this.dom?.removeEventListener("click", this.handleClickEvent); | 
 |  |  |         this.camera = null; | 
 |  |  |         this.objects = []; | 
 |  |  |         while (this.dom?.firstChild) { |