xiangpei
2024-07-22 c8315eb3969bd51bdd712d1b4d4d1cfc2bef243c
src/views/screen/components/screen-map-three/experience/camera.js
@@ -1,3 +1,4 @@
import { MathUtils } from 'three';
import { PerspectiveCamera, CameraHelper } from 'three';
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls';
@@ -5,18 +6,17 @@
export default class Camera {
    constructor(experience) {
        this.experience = experience;
        this.scene = this.experience.scene;
        this.canvas = this.experience.canvas;
        this.sizes = this.experience.sizes;
        this.scene = experience.scene;
        this.canvas = experience.canvas;
        this.sizes = experience.sizes;
        this.setInstance();
        this.setOrbitControls();
    }
    // 设置透视相机
    setInstance() {
        this.instance = new PerspectiveCamera(45,this.sizes.width / this.sizes.height, 0.001, 90000000);
        this.instance.position.set(0, 45, 45);
        this.instance = new PerspectiveCamera(45, this.sizes.width / this.sizes.height, 0.1, 200);
        this.instance.position.set(0, 37, 37);
        this.scene.add(this.instance);
        // const help = new CameraHelper(this.instance);
        // this.scene.add(help);
@@ -26,15 +26,15 @@
        this.controls = new OrbitControls(this.instance, this.canvas);
        this.controls.target.set(0, 0, 5);
        this.controls.enableDamping = true;
        this.controls.minDistance = 20;
        this.controls.maxDistance = 80;
        this.controls.maxPolarAngle = MathUtils.degToRad(80);
        // this.controls.maxPolarAngle = (-Math.PI / 2);
    }
    resize() {
        // 重新计算比例
        this.cameraAspect = (this.sizes.width / this.sizes.height) * this.frustrum;
        this.instance.left = -this.cameraAspect / 2;
        this.instance.right = this.cameraAspect / 2;
        this.instance.top = this.frustrum / 2;
        this.instance.bottom = -this.frustrum  / 2;
        this.cameraAspect = this.sizes.width / this.sizes.height;
        this.instance.updateProjectionMatrix();
    }
@@ -42,4 +42,25 @@
    update() {
        this.controls.update();
    }
    destroy() {
        this.disposeObject();
        this.removeObject();
        this.resetObject();
    }
    disposeObject() {
        this.controls.dispose();
    }
    removeObject() {
        this.scene.remove(this.instance);
    }
    resetObject() {
        this.controls = null;
        this.instance = null;
        this.scene = null;
        this.canvas = null;
        this.sizes = null;
    }
}