Question

我开始在angular.io中使用three.js并出现此错误：

(index):18 Error: (SystemJS) THREE is not defined
ReferenceError: THREE is not defined
    at Object.eval (http://localhost:3000/node_modules/three/examples/js/controls/OrbitControls.js:16:1)
    at eval (http://localhost:3000/node_modules/three/examples/js/controls/OrbitControls.js:1044:4)
    at eval (http://localhost:3000/node_modules/three/examples/js/controls/OrbitControls.js:1045:3)
    at eval (<anonymous>)
Evaluating http://localhost:3000/node_modules/three/examples/js/controls/OrbitControls.js
Evaluating http://localhost:3000/app/three-basis/three-camera-orbit-control.component.js

我的导入和组件：

import {Component} from '@angular/core';
import {CameraProvider} from './camera-provider.service';
import 'threejs/controls/OrbitControls';
import {OrbitControls} from 'three';

@Component({selector: 'three-camera-orbit-control', template: ''})
export class ThreeCameraOrbitControlComponent {

    constructor(private cameraProvider: CameraProvider) {
        let camera = this.cameraProvider.getCamera();
        let controls = new OrbitControls(camera);
        controls.addEventListener('change', () => {});
    }

}

如果我在我的node_modules / 3中的OrbitControls.js中添加此var THREE = require("three");，则错误gones和all都可以。我还不擅长js，可以请一些人帮助我，如何以正确的方式做到这一点？感谢。

Answer 1

请参阅使用Angular + Three.js的工作示例，包括OrbitControls和ColladaLoader：https://github.com/makimenko/angular-three-examples

目前，Three.js示例未包含在模块中，并且在Angular打字稿中使用它们代码可能有点棘手。解决方案/解决方法之一可能是：

首先，包括依赖项：

three
@types/three

其次，导入组件：

import * as THREE from 'three';
import "./js/EnableThreeExamples";
import "three/examples/js/controls/OrbitControls";
import "three/examples/js/loaders/ColladaLoader";

然后在代码中使用它：

this.controls = new THREE.OrbitControls(this.camera);
this.controls.rotateSpeed = 1.0;
this.controls.zoomSpeed = 1.2;
this.controls.addEventListener('change', this.render);

希望这可以帮助你开始

Angular.io（SystemJS）THREE未定义ReferenceError：未定义THREE

1 个答案: