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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - exporter - stl</title>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
- <link type="text/css" rel="stylesheet" href="main.css">
- </head>
- <body>
- <div id="info">
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - exporter - stl
- </div>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.module.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
- import { STLExporter } from 'three/addons/exporters/STLExporter.js';
- import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
- let scene, camera, renderer, exporter, mesh;
- const params = {
- exportASCII: exportASCII,
- exportBinary: exportBinary
- };
- init();
- function init() {
- camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.1, 100 );
- camera.position.set( 4, 2, 4 );
- scene = new THREE.Scene();
- scene.background = new THREE.Color( 0xa0a0a0 );
- scene.fog = new THREE.Fog( 0xa0a0a0, 4, 20 );
- exporter = new STLExporter();
- //
- const hemiLight = new THREE.HemisphereLight( 0xffffff, 0x444444, 3 );
- hemiLight.position.set( 0, 20, 0 );
- scene.add( hemiLight );
- const directionalLight = new THREE.DirectionalLight( 0xffffff, 3 );
- directionalLight.position.set( 0, 20, 10 );
- directionalLight.castShadow = true;
- directionalLight.shadow.camera.top = 2;
- directionalLight.shadow.camera.bottom = - 2;
- directionalLight.shadow.camera.left = - 2;
- directionalLight.shadow.camera.right = 2;
- scene.add( directionalLight );
- // ground
- const ground = new THREE.Mesh( new THREE.PlaneGeometry( 40, 40 ), new THREE.MeshPhongMaterial( { color: 0xbbbbbb, depthWrite: false } ) );
- ground.rotation.x = - Math.PI / 2;
- ground.receiveShadow = true;
- scene.add( ground );
- const grid = new THREE.GridHelper( 40, 20, 0x000000, 0x000000 );
- grid.material.opacity = 0.2;
- grid.material.transparent = true;
- scene.add( grid );
- // export mesh
- const geometry = new THREE.BoxGeometry();
- const material = new THREE.MeshPhongMaterial( { color: 0x00ff00 } );
- mesh = new THREE.Mesh( geometry, material );
- mesh.castShadow = true;
- mesh.position.y = 0.5;
- scene.add( mesh );
- //
- renderer = new THREE.WebGLRenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- renderer.shadowMap.enabled = true;
- document.body.appendChild( renderer.domElement );
- //
- const controls = new OrbitControls( camera, renderer.domElement );
- controls.target.set( 0, 0.5, 0 );
- controls.update();
- //
- window.addEventListener( 'resize', onWindowResize );
- const gui = new GUI();
- gui.add( params, 'exportASCII' ).name( 'Export STL (ASCII)' );
- gui.add( params, 'exportBinary' ).name( 'Export STL (Binary)' );
- gui.open();
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- function animate() {
- renderer.render( scene, camera );
- }
- function exportASCII() {
- const result = exporter.parse( mesh );
- saveString( result, 'box.stl' );
- }
- function exportBinary() {
- const result = exporter.parse( mesh, { binary: true } );
- saveArrayBuffer( result, 'box.stl' );
- }
- const link = document.createElement( 'a' );
- link.style.display = 'none';
- document.body.appendChild( link );
- function save( blob, filename ) {
- link.href = URL.createObjectURL( blob );
- link.download = filename;
- link.click();
- }
- function saveString( text, filename ) {
- save( new Blob( [ text ], { type: 'text/plain' } ), filename );
- }
- function saveArrayBuffer( buffer, filename ) {
- save( new Blob( [ buffer ], { type: 'application/octet-stream' } ), filename );
- }
- </script>
- </body>
- </html>
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