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
|
<!--********************************************************************
|
||
|
|
* by 优雅永不过时 https://github.com/z2586300277
|
||
|
|
*********************************************************************-->
|
||
|
|
<!DOCTYPE html>
|
||
|
|
<html>
|
||
|
|
|
||
|
|
<head>
|
||
|
|
<meta charset="UTF-8" />
|
||
|
|
<style>
|
||
|
|
* {
|
||
|
|
margin: 0;
|
||
|
|
padding: 0;
|
||
|
|
overflow: hidden;
|
||
|
|
}
|
||
|
|
|
||
|
|
body,
|
||
|
|
#box {
|
||
|
|
width: 100%;
|
||
|
|
background-color: #1f1f1f;
|
||
|
|
height: 100%;
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
|
||
|
|
<body>
|
||
|
|
<script type="importmap">
|
||
|
|
{
|
||
|
|
"imports": {
|
||
|
|
"three": "./../../three/build/three.module.js",
|
||
|
|
"three/addons/": "./../../three/examples/jsm/",
|
||
|
|
"three/example/": "./../../three/examples/"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
|
||
|
|
|
||
|
|
<script type="module">
|
||
|
|
import * as THREE from "three";
|
||
|
|
import { OrbitControls } from "three/addons/controls/OrbitControls.js";
|
||
|
|
import { OBJLoader } from 'three/example/jsm/loaders/OBJLoader.js'
|
||
|
|
import { MeshSurfaceSampler } from 'three/example/jsm/math/MeshSurfaceSampler.js';
|
||
|
|
|
||
|
|
const scene = new THREE.Scene();
|
||
|
|
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
|
||
|
|
camera.position.set(0, 100, 300)
|
||
|
|
|
||
|
|
const renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true })
|
||
|
|
renderer.setSize(window.innerWidth, window.innerHeight)
|
||
|
|
document.body.appendChild(renderer.domElement)
|
||
|
|
|
||
|
|
const controls = new OrbitControls(camera, renderer.domElement)
|
||
|
|
controls.autoRotate = true
|
||
|
|
|
||
|
|
let sampler = null
|
||
|
|
let path = null
|
||
|
|
|
||
|
|
new OBJLoader().load('./woman/woman.obj',(obj) => {
|
||
|
|
|
||
|
|
sampler = new MeshSurfaceSampler(obj.children[0]).build();
|
||
|
|
path = new Path();
|
||
|
|
scene.add(path.line);
|
||
|
|
renderer.setAnimationLoop(render);
|
||
|
|
}
|
||
|
|
)
|
||
|
|
|
||
|
|
const tempPosition = new THREE.Vector3();
|
||
|
|
|
||
|
|
class Path {
|
||
|
|
constructor() {
|
||
|
|
this.vertices = [];
|
||
|
|
this.geometry = new THREE.BufferGeometry();
|
||
|
|
this.material = new THREE.LineBasicMaterial({ color: 0xa58fb5, transparent: true, opacity: 0.5 });
|
||
|
|
this.line = new THREE.Line(this.geometry, this.material);
|
||
|
|
sampler.sample(tempPosition);
|
||
|
|
this.previousPoint = tempPosition.clone()
|
||
|
|
}
|
||
|
|
update() {
|
||
|
|
let pointFound = false;
|
||
|
|
while (!pointFound) {
|
||
|
|
sampler.sample(tempPosition);
|
||
|
|
if (tempPosition.distanceTo(this.previousPoint) < 20) {
|
||
|
|
this.vertices.push(tempPosition.x, tempPosition.y, tempPosition.z);
|
||
|
|
this.previousPoint = tempPosition.clone();
|
||
|
|
pointFound = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
this.geometry.setAttribute("position", new THREE.Float32BufferAttribute(this.vertices, 3));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function render() {
|
||
|
|
|
||
|
|
if (path.vertices.length < 50000) {
|
||
|
|
Array.from({ length: 10 }).forEach(() => path.update())
|
||
|
|
}
|
||
|
|
controls.update();
|
||
|
|
renderer.render(scene, camera);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
</script>
|
||
|
|
|
||
|
|
</body>
|
||
|
|
|
||
|
|
</html>
|