2025-03-11 08:25:45 +00:00
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<!--********************************************************************
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* by jiawanlong
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*********************************************************************-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8" />
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<style>
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* {
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margin: 0;
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padding: 0;
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overflow: hidden;
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}
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</style>
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</head>
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<body>
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<script type="importmap">
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{
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"imports": {
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2025-03-19 03:00:22 +00:00
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"three": "./../../libs/three/build/three.module.js",
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"three/addons/": "./../../libs/three/examples/jsm/"
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2025-03-11 08:25:45 +00:00
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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// 场景
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const scene = new THREE.Scene();// 创建场景
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//BoxGeometry：长方体
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const geometry1 = new THREE.BoxGeometry(10, 10, 10);
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// SphereGeometry：球体
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const geometry2 = new THREE.SphereGeometry(10);
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// CylinderGeometry：圆柱
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const geometry3 = new THREE.CylinderGeometry(10, 10, 100);
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// PlaneGeometry：矩形平面
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const geometry4 = new THREE.PlaneGeometry(10, 50);
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// CircleGeometry：圆形平面
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const geometry5 = new THREE.CircleGeometry(10);
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const material = new THREE.MeshBasicMaterial({ color: 0xff0000 }); //材质
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const mesh1 = new THREE.Mesh(geometry1, material);
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mesh1.position.set(0, 0, 0);
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const mesh2 = new THREE.Mesh(geometry2, material);
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mesh2.position.set(0, 0, 30);
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const mesh3 = new THREE.Mesh(geometry3, material);
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mesh3.position.set(0, 0, 60);
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const mesh4 = new THREE.Mesh(geometry4, material);
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mesh4.position.set(0, 0, 90);
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const mesh5 = new THREE.Mesh(geometry5, material);
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mesh5.position.set(0, 0, 120);
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scene.add(mesh1);
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scene.add(mesh2);
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scene.add(mesh3);
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scene.add(mesh4);
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scene.add(mesh5);
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// AxesHelper
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const axesHelper = new THREE.AxesHelper(150);
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scene.add(axesHelper);
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// 相机
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const camera = new THREE.PerspectiveCamera(); //相机
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camera.position.set(400, 300, 500); //相机位置
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camera.lookAt(0, 50, 40); //相机观察位置
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// 渲染器
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const renderer = new THREE.WebGLRenderer(); // 创建渲染器
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renderer.setSize(window.innerWidth, window.innerHeight); //渲染区域
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renderer.render(scene, camera); //执行渲染
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document.body.appendChild(renderer.domElement);
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// 设置相机控件轨道控制器OrbitControls
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const controls = new OrbitControls(camera, renderer.domElement);
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// 如果OrbitControls改变了相机参数，重新调用渲染器渲染三维场景
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controls.addEventListener('change', function () {
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renderer.render(scene, camera); //执行渲染操作
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console.log(camera.position)
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});//监听鼠标、键盘事件
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window.scene = scene;
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// 删除后重新渲染
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scene.remove(mesh5)
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renderer.render(scene, camera);
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// 隐藏后重新渲染
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mesh4.visible = false;
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renderer.render(scene, camera);
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</script>
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</body>
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</html>
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