gas-injection/src/views/vent/monitorManager/nitrogenMonitor/nitrogen.threejs.base.ts

import * as THREE from 'three';
import { CSS3DSprite } from 'three/examples/jsm/renderers/CSS3DRenderer';
import { setModalCenter } from '/@/utils/threejs/util';
// import { setModalCenter } from '/@/utils/threejs/util';
// import * as dat from 'dat.gui';
// const gui = new dat.GUI();
// gui.domElement.style = 'position:absolute;top:100px;left:10px;z-index:99999999999999';

class ModelContext {
  model;
  modelName = 'spray-upper';
  // modelName = 'spray-ts';
  // modelName = 'dedust';
  group: THREE.Object3D | null = null;
  /** 本模型内支持的锚点位置数组 */
  anchors: [number, number, number][] = [
    [1.5, 0.5, 1.6],
    // [0, 0, 0],
    // 右侧传感器
    [1.3, 0.5, 1.6],
    // [-25.847, 8.783, 3.267],
    // [31.142, 8.783, 3.267],
  ];
  /** 本模型显示的css详情元素数组 */
  cssSprites: CSS3DSprite[] = [];
  /** 初始化时用到的摄像头位置参数，可以供外部访问或初始化时使用 */
  cameraPostion = {
    x: 2.0063999826191625,
    y: 0.3963997081529602,
    z: 3.275298992446514,
  };
  /** 初始化时用到的滑轨目标参数，可以供外部访问或初始化时使用，配合摄像头可以实现更精确的控制 */
  orbitTarget = {
    x: 2.023679325280445,
    y: -0.1461634482645532,
    z: 0.04677126793423104,
  };

  constructor(model) {
    this.model = model;
  }

  addLight() {
    const directionalLight = new THREE.DirectionalLight(0xffffff, 1.2);
    directionalLight.position.set(6.3, 28, 20);
    this.group?.add(directionalLight);
    directionalLight.target = this.group as THREE.Object3D;

    const pointLight = new THREE.PointLight(0xffffff, 1, 1000);
    pointLight.position.set(45, 51, -4.1);
    pointLight.shadow.bias = 0.05;
    this.model.scene.add(pointLight);
  }

  /** 初始化css元素，将css元素选择器传入，该方法会将这些元素按顺序放入本模型支持的锚点中 */
  initCssElement(selectors: string[]) {
    selectors.forEach((selector, index) => {
      const element = document.querySelector(selector) as HTMLElement;
      if (element) {
        const css3D = new CSS3DSprite(element);
        this.cssSprites.push(css3D);
        css3D.name = selector;
        css3D.scale.set(0.002, 0.002, 0.002);
        // const ff = gui.addFolder(`css元素${index}`);
        // ff.add(css3D.position, 'x', -100, 100);
        // ff.add(css3D.position, 'y', -100, 100);
        // ff.add(css3D.position, 'z', -100, 100);
        if (index < this.anchors.length) {
          const [x, y, z] = this.anchors[index];
          css3D.position.set(x, y, z);
          this.group?.add(css3D);
        } else {
          console.warn(`指定的元素${selector}没有合适的位置放置`);
        }
      }
    });
  }

  /** 清除css元素 */
  clearCssElement() {
    this.cssSprites.forEach((sprite) => {
      this.group?.remove(sprite);
    });
    this.cssSprites = [];
  }

  mountedThree() {
    return new Promise((resolve) => {
      this.model.setGLTFModel([this.modelName]).then(async (gltf) => {
        this.group = gltf[0];
        if (this.group) {
          setModalCenter(this.group);
          resolve(null);
          // this.addLight();
        }
      });
    });
  }

  destroy() {
    if (this.model) {
      this.model.clearGroup(this.group);
      this.model = null;
      this.group = null;
    }
  }
}
export default ModelContext;