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				|  |  | +import * as THREE from 'three';
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				|  |  | +import { RGBELoader } from 'three/examples/jsm/loaders/RGBELoader.js';
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				|  |  | +// 导入轨道控制器
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				|  |  | +import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls';
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				|  |  | +import { CSS3DRenderer, CSS3DObject } from 'three/examples/jsm/renderers/CSS3DRenderer'
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				|  |  | +// import gsap from 'gsap';
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				|  |  | +import ResourceTracker from '/@/utils/threejs/ResourceTracker';
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				|  |  | +import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader'
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				|  |  | +import { DRACOLoader } from 'three/examples/jsm/loaders/DRACOLoader'
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				|  |  | +
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				|  |  | +
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				|  |  | +
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				|  |  | +class UseThree {
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				|  |  | +  canvasContainer: HTMLCanvasElement;
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				|  |  | +  CSSCanvasContainer: HTMLCanvasElement | null = null;
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				|  |  | +  camera: THREE.PerspectiveCamera | null = null;
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				|  |  | +  scene: THREE.Scene | null = null;
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				|  |  | +  renderer: THREE.WebGLRenderer | null = null;
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				|  |  | +  css3dRender: CSS3DRenderer | null = null;
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				|  |  | +  orbitControls: OrbitControls | null = null;
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				|  |  | +  giftLoader: THREE.Object3D | null = null;
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				|  |  | +  animationMixer: THREE.AnimationMixer | null = null;
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				|  |  | +  animationAction: THREE.AnimationAction | null = null;
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				|  |  | +  clock: THREE.Clock = new THREE.Clock(); // 计时器
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				|  |  | +  timeoutId: NodeJS.Timeout | null = null;
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				|  |  | +  animationId: number = 0
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				|  |  | +  resourceTracker:ResourceTracker | null = null
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				|  |  | +  track: any = null
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				|  |  | +  spriteText: THREE.Sprite | null = null
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				|  |  | +
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				|  |  | +  constructor(canvasSelector, cssCanvas?) {
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				|  |  | + 
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				|  |  | +
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				|  |  | +    this.resourceTracker = new ResourceTracker()
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				|  |  | +    this.track = this.resourceTracker.track.bind(this.resourceTracker)
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				|  |  | +    this.animationId = 0
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				|  |  | +    this.canvasContainer = document.querySelector(canvasSelector);
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				|  |  | +
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				|  |  | +    //初始化
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				|  |  | +    this.init(cssCanvas);
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				|  |  | +    this.animate();
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				|  |  | +    window.addEventListener('resize', this.resizeRenderer.bind(this));
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				|  |  | +    // 添加滚动事件,鼠标滚动模型执行动画
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				|  |  | +    // window.addEventListener('wheel', this.wheelRenderer.bind(this));
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				|  |  | +  }
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				|  |  | +  init(cssCanvas?) {
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				|  |  | +    // 初始化场景
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				|  |  | +    this.initScene();
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				|  |  | +    // 初始化环境光
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				|  |  | +    this.initLight();
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				|  |  | +    // 初始化相机
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				|  |  | +    this.initCamera();
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				|  |  | +    //初始化渲染器
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				|  |  | +    this.initRenderer();
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				|  |  | +
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				|  |  | +    // 初始化控制器
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				|  |  | +    this.initControles();
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				|  |  | +
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				|  |  | +    if(cssCanvas){
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				|  |  | +      this.initCSSRenderer(cssCanvas)
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				|  |  | +      // this.addTextSprite()
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				|  |  | +    }
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				|  |  | +    // this.setTestPlane()
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  initScene() {
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				|  |  | +    this.scene = this.track(new THREE.Scene());
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				|  |  | +    // const axesHelper = new THREE.AxesHelper(100);
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				|  |  | +    // this.scene?.add(axesHelper);
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				|  |  | +
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				|  |  | +    // const size = 1000;
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				|  |  | +    // const divisions = 10;
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				|  |  | +    // const gridHelper = new THREE.GridHelper( size, divisions );
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				|  |  | +    // this.scene?.add( gridHelper )
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  initLight() {
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				|  |  | +    const light = this.track(new THREE.AmbientLight(0xffffff, 1));
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				|  |  | +    light.position.set(0, 1000, 1000);
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				|  |  | +    (this.scene as THREE.Scene).add(light);
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  initCamera() {
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				|  |  | +    this.camera = this.track(new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 0.01, 1000));
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				|  |  | +    this.camera?.position.set(0, 0.2, 0.3);
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				|  |  | +    // const helper = new THREE.CameraHelper( this.camera);
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				|  |  | +    // this.scene?.add( helper );
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				|  |  | +    
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  initRenderer() {
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				|  |  | +
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				|  |  | +    this.renderer = this.track(new THREE.WebGLRenderer({ antialias: true, alpha:true })) as THREE.WebGLRenderer;
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				|  |  | +    // 设置屏幕像素比
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				|  |  | +    this.renderer?.setPixelRatio(window.devicePixelRatio);
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				|  |  | +    // 设置渲染的尺寸
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				|  |  | +    this.renderer?.setSize(window.innerWidth, window.innerHeight);
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				|  |  | +    // 色调映射
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				|  |  | +    this.renderer.toneMapping = THREE.ACESFilmicToneMapping;
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				|  |  | +
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				|  |  | +    this.renderer.outputEncoding = THREE.sRGBEncoding;
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				|  |  | +
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				|  |  | +    this.renderer.shadowMap.enabled = true
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				|  |  | +
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				|  |  | +    this.renderer.shadowMap.type = THREE.PCFSoftShadowMap
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				|  |  | +
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				|  |  | +    // 曝光程度
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				|  |  | +    this.renderer.toneMappingExposure = 1;
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				|  |  | +
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				|  |  | +    this.canvasContainer.appendChild(this.renderer.domElement);
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				|  |  | +    
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  initCSSRenderer(cssCanvas) {
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				|  |  | +    this.CSSCanvasContainer = document.querySelector(cssCanvas);
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				|  |  | +    this.css3dRender = this.track(new CSS3DRenderer()) as CSS3DRenderer
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				|  |  | +    this.css3dRender.setSize((window.innerWidth), (window.innerHeight))
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				|  |  | +    this.CSSCanvasContainer?.appendChild(this.css3dRender.domElement)
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				|  |  | +    this.css3dRender.render(this.scene as THREE.Scene, this.camera as THREE.PerspectiveCamera)
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				|  |  | +    this.orbitControls = this.track(new OrbitControls(this.camera as THREE.Camera, this.css3dRender?.domElement)) as OrbitControls;
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				|  |  | +    this.orbitControls.update()
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				|  |  | +    // this.orbitControls.enableZoom = false;
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				|  |  | +    // // to disable rotation
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				|  |  | +    // this.orbitControls.enableRotate = false;
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				|  |  | +    // // to disable pan
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				|  |  | +    // this.orbitControls.enablePan = false;
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  initControles() {
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				|  |  | +    this.orbitControls = this.track(new OrbitControls(this.camera as THREE.Camera, this.renderer?.domElement)) as OrbitControls;
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				|  |  | +    this.orbitControls.update()
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				|  |  | +    // this.orbitControls.enableZoom = false;
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				|  |  | +    // // to disable rotation
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				|  |  | +    // this.orbitControls.enableRotate = false;
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				|  |  | +    // // to disable pan
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				|  |  | +    // this.orbitControls.enablePan = false;
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  setModalCenter(group) {
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				|  |  | +    var box3 = new THREE.Box3()
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				|  |  | +  
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				|  |  | +    // 计算层级模型group的包围盒
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				|  |  | +    // 模型group是加载一个三维模型返回的对象,包含多个网格模型
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				|  |  | +    box3.expandByObject(group)
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				|  |  | +    // 计算一个层级模型对应包围盒的几何体中心在世界坐标中的位置
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				|  |  | +    var center = new THREE.Vector3()
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				|  |  | +    box3.getCenter(center)
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				|  |  | +    // console.log('查看几何体中心坐标', center);
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				|  |  | +    // 重新设置模型的位置,使之居中。
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				|  |  | +    group.position.x = group.position.x - center.x
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				|  |  | +    group.position.y = group.position.y - center.y
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				|  |  | +    group.position.z = group.position.z - center.z
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				|  |  | +  };
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				|  |  | +
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				|  |  | +  setModel(modalName) {
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				|  |  | +    const a = new Date().getTime() / 1000
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				|  |  | +    return new Promise(async (resolve, reject) => {
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				|  |  | +      try {
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				|  |  | +        const db =  window['CustomDB']
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				|  |  | +        const modalArr =  await db.modal.where('modalName').equals(modalName).toArray()
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				|  |  | +        // debugger
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				|  |  | +        if(modalArr.length > 0) {
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				|  |  | +          const modalValue = modalArr[0].modalVal
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				|  |  | +          try {
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				|  |  | +            const gltfLoader = new GLTFLoader()
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				|  |  | +            const dracoLoader = new DRACOLoader();
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				|  |  | +            dracoLoader.setDecoderPath( '/3D/draco/gltf/' );
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				|  |  | +            dracoLoader.setDecoderConfig({ type: "js" }); //使用兼容性强的draco_decoder.js解码器
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				|  |  | +            dracoLoader.preload();
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				|  |  | +            gltfLoader.setDRACOLoader(dracoLoader);
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				|  |  | +
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				|  |  | +            gltfLoader.setPath('/3d/glft/')
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				|  |  | +            gltfLoader.parse(modalValue, '/3d/glft/', (gltf) => {
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				|  |  | +              const object = this.track(gltf.scene.children[0])
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				|  |  | +              this.setModalCenter(object)
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				|  |  | +              object.traverse((obj) => {
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				|  |  | +                if (obj instanceof THREE.Mesh) {
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				|  |  | +                  obj.material.emissiveIntensity = 1
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				|  |  | +                  obj.material.emissiveMap = obj.material.map
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				|  |  | +                  if(obj.name !== "buxiugangse") {
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				|  |  | +                    obj.receiveShadow = true
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				|  |  | +                  }
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				|  |  | +                  obj.castShadow = true
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				|  |  | +                  
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				|  |  | +                  
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				|  |  | +                } else if (obj.type === 'Object3D') {
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				|  |  | +                  // const text3D = this.addYFText(obj)
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				|  |  | +                  // const textCQ3D = this.addCQText(obj)
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				|  |  | +                  // gltf.scene.add(text3D)
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				|  |  | +                  // gltf.scene.add(textCQ3D)
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				|  |  | +                }
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				|  |  | +              })
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				|  |  | +              this.scene?.add(object);
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				|  |  | +              console.log(object);
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				|  |  | +              resolve(object)
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				|  |  | +            }, (err)=> {
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				|  |  | +              console.log(err);
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				|  |  | +              
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				|  |  | +            })
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				|  |  | +  
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				|  |  | +          } catch (error) {
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				|  |  | +            console.log(error);
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				|  |  | +          }
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				|  |  | +        } 
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				|  |  | +      } catch (error) {
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				|  |  | +        reject('加载模型出错')
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				|  |  | +      }
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				|  |  | +    })
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  setTestPlane() {
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				|  |  | +			const plane = new THREE.Mesh(
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				|  |  | +				new THREE.PlaneGeometry( 100, 100 ),
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				|  |  | +				new THREE.MeshPhongMaterial( { color: 0x999999, specular: 0x101010 } )
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				|  |  | +			);
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				|  |  | +			plane.rotation.x = - Math.PI / 2;
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				|  |  | +			plane.position.y = 0.03;
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				|  |  | +			plane.receiveShadow = true;
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				|  |  | +			// this.scene?.add( plane );
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				|  |  | +  }
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				|  |  | +  
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				|  |  | +  /* 自定义材质 */
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				|  |  | +  setCustomMaterial(group){}
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				|  |  | +
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				|  |  | +  /* 场景环境背景 */
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				|  |  | +  setEnvMap(hdr) {
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				|  |  | +    // new RGBELoader().setPath('/public/3D/hdr/').load(hdr + '.jpeg', (texture) => {
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				|  |  | +    //   debugger
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				|  |  | +    //   texture.mapping = THREE.EquirectangularReflectionMapping;
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				|  |  | +    //   (this.scene as THREE.Scene).background = texture;
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				|  |  | +    //   (this.scene as THREE.Scene).environment = texture;
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				|  |  | +    // });
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				|  |  | +    new THREE.TextureLoader().setPath('/3D/hdr/').load(hdr + '.jpeg', (texture) => {
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				|  |  | +      texture.mapping = THREE.EquirectangularReflectionMapping;
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				|  |  | +      // (this.scene as THREE.Scene).background = new THREE.Color('#00000000');
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				|  |  | +      (this.scene as THREE.Scene).environment = texture;
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				|  |  | +    });
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  render() {
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				|  |  | +    const delta = this.clock.getElapsedTime();
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				|  |  | +    this.resetLookAt()
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				|  |  | +    this.startMY()
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				|  |  | +    this.renderer?.render(this.scene as THREE.Object3D, this.camera as THREE.Camera);
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				|  |  | +    this.css3dRender?.render(this.scene as THREE.Scene, this.camera as THREE.PerspectiveCamera)
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				|  |  | +    this.animationMixer?.update(delta);
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				|  |  | +  }
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				|  |  | +
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				|  |  | +  /* 实时物体刷新朝向 */
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				|  |  | +  resetLookAt() {
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				|  |  | +  }
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				|  |  | +  /* 漫游 */
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				|  |  | +  startMY() {}
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				|  |  | +
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				|  |  | +  animate() {
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				|  |  | +    // this.renderer?.setAnimationLoop(this.render.bind(this));
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				|  |  | +    if(this.animationId != -1) {
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				|  |  | +      this.render()
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				|  |  | +      this.animationId = requestAnimationFrame(this.animate.bind(this))
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				|  |  | +    }
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				|  |  | +  }
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				|  |  | +  resizeRenderer() {
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				|  |  | +    // 更新相机比例
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				|  |  | +    (this.camera as THREE.PerspectiveCamera).aspect = window.innerWidth / window.innerHeight;
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				|  |  | +    // 刷新相机矩阵
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				|  |  | +    this.camera?.updateProjectionMatrix();
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				|  |  | +    // 设置场景尺寸
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				|  |  | +    this.renderer?.setSize(window.innerWidth, window.innerHeight);
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				|  |  | +    this.css3dRender?.setSize(window.innerWidth, window.innerHeight);
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				|  |  | +  }
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				|  |  | +  wheelRenderer(e: WheelEvent) {
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				|  |  | +    const timeScale = e.deltaY > 0 ? 1 : -1;
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				|  |  | +    this.animationAction?.setEffectiveTimeScale(timeScale);
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				|  |  | +    (this.animationAction as THREE.AnimationAction).paused = false;
 | 
	
		
			
				|  |  | +    this.animationAction?.play();
 | 
	
		
			
				|  |  | +    if (this.timeoutId) {
 | 
	
		
			
				|  |  | +      clearTimeout(this.timeoutId);
 | 
	
		
			
				|  |  | +    }
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				|  |  | +    this.timeoutId = setTimeout(() => {
 | 
	
		
			
				|  |  | +      this.animationAction?.halt(0.5);
 | 
	
		
			
				|  |  | +    }, 500);
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				|  |  | +  }
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				|  |  | +  deleteModal() {
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				|  |  | +    try {
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				|  |  | +      
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				|  |  | +      this.resourceTracker && this.resourceTracker.dispose()
 | 
	
		
			
				|  |  | +      this.renderer?.dispose()
 | 
	
		
			
				|  |  | +      this.renderer?.forceContextLoss()
 | 
	
		
			
				|  |  | +      // this.renderer?.domElement = null
 | 
	
		
			
				|  |  | +      this.renderer = null
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +      // this.css3dRender?.domElement = null
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				|  |  | +      this.css3dRender = null;
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				|  |  | +
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				|  |  | +      cancelAnimationFrame(this.animationId);
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				|  |  | +
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				|  |  | +      const gl = this.renderer?.domElement.getContext("webgl");
 | 
	
		
			
				|  |  | +      gl && gl?.getExtension("WEBGL_lose_context")?.loseContext();
 | 
	
		
			
				|  |  | +
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				|  |  | +      const gl1 = this.css3dRender?.domElement.getContext("webgl");
 | 
	
		
			
				|  |  | +      gl1 && gl1?.getExtension("WEBGL_lose_context")?.loseContext();
 | 
	
		
			
				|  |  | +
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				|  |  | +      this.animationId = -1
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				|  |  | +
 | 
	
		
			
				|  |  | +      this.resourceTracker?.untrack(this.resourceTracker.resources)
 | 
	
		
			
				|  |  | +      // this.scene = null
 | 
	
		
			
				|  |  | +      console.log('销毁场景',this.scene);
 | 
	
		
			
				|  |  | +      
 | 
	
		
			
				|  |  | +    } catch (error) {
 | 
	
		
			
				|  |  | +      console.log(error);
 | 
	
		
			
				|  |  | +    }
 | 
	
		
			
				|  |  | +    // this.scene?.children.forEach((obj:any) => {
 | 
	
		
			
				|  |  | +    //   if(obj.type === 'Group'){
 | 
	
		
			
				|  |  | +    //     obj.traverse(function(item:any) {
 | 
	
		
			
				|  |  | +    //       if (item.type === 'Mesh') {
 | 
	
		
			
				|  |  | +    //         item.geometry.dispose();
 | 
	
		
			
				|  |  | +    //         item.material.dispose();
 | 
	
		
			
				|  |  | +    //         !!item.clear&&item.clear();
 | 
	
		
			
				|  |  | +    //       }
 | 
	
		
			
				|  |  | +    //     })
 | 
	
		
			
				|  |  | +    //   }else if (obj.material) {
 | 
	
		
			
				|  |  | +    //     obj.material.dispose();
 | 
	
		
			
				|  |  | +    //   }else if (obj.geometry) {
 | 
	
		
			
				|  |  | +    //     obj.geometry.dispose();
 | 
	
		
			
				|  |  | +    //   }
 | 
	
		
			
				|  |  | +    //   this.scene?.remove(obj)
 | 
	
		
			
				|  |  | +    //   !!obj.clear??obj.clear()
 | 
	
		
			
				|  |  | +    //   obj = null;
 | 
	
		
			
				|  |  | +    // })
 | 
	
		
			
				|  |  | +    // let gl = this.renderer?.domElement.getContext("webgl");
 | 
	
		
			
				|  |  | +    // gl && gl?.getExtension("WEBGL_lose_context")?.loseContext();
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    // this.renderer?.forceContextLoss();
 | 
	
		
			
				|  |  | +    // this.renderer?.dispose();
 | 
	
		
			
				|  |  | +    // this.camera = null;
 | 
	
		
			
				|  |  | +    // this.orbitControls = null;
 | 
	
		
			
				|  |  | +    // this.renderer.domElement = null;
 | 
	
		
			
				|  |  | +    // this.renderer = null;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    // css3dRender.domElement = null;
 | 
	
		
			
				|  |  | +    // css3dRender = null;
 | 
	
		
			
				|  |  | +    // model3D.innerHTML = '';
 | 
	
		
			
				|  |  | +    // css3D.innerHTML = '';
 | 
	
		
			
				|  |  | +    // model3D = null
 | 
	
		
			
				|  |  | +    // css3D = null
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    // this.stats = null
 | 
	
		
			
				|  |  | +    // scene = null
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    THREE.Cache.clear();  
 | 
	
		
			
				|  |  | +    console.log('3D环境已清理干净');
 | 
	
		
			
				|  |  | +  }
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  /* 创建字体精灵 */
 | 
	
		
			
				|  |  | +  addTextSprite(message, parameters) {
 | 
	
		
			
				|  |  | +    if (parameters === undefined) parameters = {};
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    var fontface = parameters.hasOwnProperty("fontface") ?
 | 
	
		
			
				|  |  | +        parameters["fontface"] : "Arial";
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 字体大小 */
 | 
	
		
			
				|  |  | +    var fontsize = parameters.hasOwnProperty("fontsize") ?
 | 
	
		
			
				|  |  | +        parameters["fontsize"] : 18;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 边框厚度 */
 | 
	
		
			
				|  |  | +    var borderThickness = parameters.hasOwnProperty("borderThickness") ?
 | 
	
		
			
				|  |  | +        parameters["borderThickness"] : 4;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 边框颜色 */
 | 
	
		
			
				|  |  | +    var borderColor = parameters.hasOwnProperty("borderColor") ?
 | 
	
		
			
				|  |  | +        parameters["borderColor"] : { r: 0, g: 0, b: 0, a: 1.0 };
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 背景颜色 */
 | 
	
		
			
				|  |  | +    var backgroundColor = parameters.hasOwnProperty("backgroundColor") ?
 | 
	
		
			
				|  |  | +        parameters["backgroundColor"] : { r: 255, g: 255, b: 255, a: 1.0 };
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 创建画布 */
 | 
	
		
			
				|  |  | +    var canvas = document.createElement('canvas');
 | 
	
		
			
				|  |  | +    var context = canvas.getContext('2d') as CanvasRenderingContext2D;
 | 
	
		
			
				|  |  | +    // canvas.width = 0
 | 
	
		
			
				|  |  | +    // canvas.height = 200
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 字体加粗 */
 | 
	
		
			
				|  |  | +    context.font = "Bold " + fontsize + "px " + fontface;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 获取文字的大小数据,高度取决于文字的大小 */
 | 
	
		
			
				|  |  | +    var metrics = context.measureText(message);
 | 
	
		
			
				|  |  | +    var textWidth = metrics.width;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 背景颜色 */
 | 
	
		
			
				|  |  | +    context.fillStyle = "rgba(" + backgroundColor.r + "," + backgroundColor.g + ","
 | 
	
		
			
				|  |  | +        + backgroundColor.b + "," + backgroundColor.a + ")";
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 边框的颜色 */
 | 
	
		
			
				|  |  | +    context.strokeStyle = "rgba(" + borderColor.r + "," + borderColor.g + ","
 | 
	
		
			
				|  |  | +        + borderColor.b + "," + borderColor.a + ")";
 | 
	
		
			
				|  |  | +    context.lineWidth = borderThickness;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 绘制圆角矩形 */
 | 
	
		
			
				|  |  | +    this.roundRect(context, borderThickness / 2, borderThickness / 2, textWidth + borderThickness, fontsize * 1.4 + borderThickness, 6);
 | 
	
		
			
				|  |  | +    // this.roundRect(context, borderThickness / 2, borderThickness / 2, 10000, 10000, 6);
 | 
	
		
			
				|  |  | +    /* 字体颜色 */
 | 
	
		
			
				|  |  | +    context.fillStyle = "rgba(0, 0, 0, 1.0)";
 | 
	
		
			
				|  |  | +    context.fillText(message, borderThickness, fontsize + borderThickness);
 | 
	
		
			
				|  |  | +    // context.fillRect(borderThickness / 2, borderThickness / 2, 10000, 10000)
 | 
	
		
			
				|  |  | +    /* 画布内容用于纹理贴图 */
 | 
	
		
			
				|  |  | +    var texture = new THREE.Texture(canvas);
 | 
	
		
			
				|  |  | +    texture.needsUpdate = true;
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    var spriteMaterial = new THREE.SpriteMaterial({ map: texture, transparent:false });
 | 
	
		
			
				|  |  | +    var sprite = new THREE.Sprite(spriteMaterial);
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    /* 缩放比例 */
 | 
	
		
			
				|  |  | +    sprite.scale.set(10, 5, 1);
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    return sprite;
 | 
	
		
			
				|  |  | +  }
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  /* 绘制圆角矩形 */
 | 
	
		
			
				|  |  | +  roundRect(ctx, x, y, w, h, r) {
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +    ctx.beginPath();
 | 
	
		
			
				|  |  | +    ctx.moveTo(x + r, y);
 | 
	
		
			
				|  |  | +    ctx.lineTo(x + w - r, y);
 | 
	
		
			
				|  |  | +    ctx.quadraticCurveTo(x + w, y, x + w, y + r);
 | 
	
		
			
				|  |  | +    ctx.lineTo(x + w, y + h - r);
 | 
	
		
			
				|  |  | +    ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);
 | 
	
		
			
				|  |  | +    ctx.lineTo(x + r, y + h);
 | 
	
		
			
				|  |  | +    ctx.quadraticCurveTo(x, y + h, x, y + h - r);
 | 
	
		
			
				|  |  | +    ctx.lineTo(x, y + r);
 | 
	
		
			
				|  |  | +    ctx.quadraticCurveTo(x, y, x + r, y);
 | 
	
		
			
				|  |  | +    ctx.closePath();
 | 
	
		
			
				|  |  | +    ctx.fill();
 | 
	
		
			
				|  |  | +    ctx.stroke();
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +  }
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +}
 | 
	
		
			
				|  |  | +
 | 
	
		
			
				|  |  | +export default UseThree;
 |