mirror of
https://github.com/jiawanlong/Cesium-Examples.git
synced 2025-11-04 09:14:17 +00:00
105 lines
3.3 KiB
HTML
105 lines
3.3 KiB
HTML
<!--********************************************************************
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* by 优雅永不过时 https://github.com/z2586300277
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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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body,
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#box {
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width: 100%;
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background-color: #1f1f1f;
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height: 100%;
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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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"three": "./../../libs/three/build/three.module.js",
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"three/addons/": "./../../libs/three/examples/jsm/",
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"three/example/": "./../../libs/three/examples/"
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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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import { OBJLoader } from 'three/example/jsm/loaders/OBJLoader.js'
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import { MeshSurfaceSampler } from 'three/example/jsm/math/MeshSurfaceSampler.js';
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const scene = new THREE.Scene();
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const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
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camera.position.set(0, 100, 300)
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const renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true })
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renderer.setSize(window.innerWidth, window.innerHeight)
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document.body.appendChild(renderer.domElement)
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const controls = new OrbitControls(camera, renderer.domElement)
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controls.autoRotate = true
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let sampler = null
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let path = null
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new OBJLoader().load('./woman/woman.obj',(obj) => {
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sampler = new MeshSurfaceSampler(obj.children[0]).build();
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path = new Path();
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scene.add(path.line);
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renderer.setAnimationLoop(render);
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}
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)
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const tempPosition = new THREE.Vector3();
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class Path {
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constructor() {
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this.vertices = [];
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this.geometry = new THREE.BufferGeometry();
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this.material = new THREE.LineBasicMaterial({ color: 0xa58fb5, transparent: true, opacity: 0.5 });
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this.line = new THREE.Line(this.geometry, this.material);
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sampler.sample(tempPosition);
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this.previousPoint = tempPosition.clone()
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}
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update() {
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let pointFound = false;
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while (!pointFound) {
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sampler.sample(tempPosition);
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if (tempPosition.distanceTo(this.previousPoint) < 20) {
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this.vertices.push(tempPosition.x, tempPosition.y, tempPosition.z);
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this.previousPoint = tempPosition.clone();
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pointFound = true;
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}
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}
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this.geometry.setAttribute("position", new THREE.Float32BufferAttribute(this.vertices, 3));
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}
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}
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function render() {
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if (path.vertices.length < 50000) {
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Array.from({ length: 10 }).forEach(() => path.update())
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}
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controls.update();
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renderer.render(scene, camera);
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}
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</script>
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</body>
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</html> |