如何将客户端 .STL 文件加载到three.js 场景而不是从服务器加载? [英] How can I load client .STL file into three.js scene instead of loading from server?
问题描述
我有一个选择文件"按钮，我想用于加载客户端文件，而不是从第 86 行的 loader.load() 中的服务器路径加载.我猜我需要使用 File API 但没有看了这个解决方案后，不知道如何.
I have a 'choose file' button I want to use for loading a client side file instead of loading from the server path in loader.load() on line 86. I'm guessing I need to use File API but haven't figured out how after looking at this solution.
从第 86 行的服务器路径加载文件的现有网页:
<!DOCTYPE html>
<html>
<head>
<style>
body {
background-color:#fea47c;
}
div {
position:relative;
left:200px;
top:0px;
background-color: #eeeeee;
border:1px solid black;
width:550px;
height:550px;
}
canvas {
width:550px;
height:550px;
}
input#file
{
position:relative;left:425px;
}
</style>
</head>
<body>
<input type="file" name="file" id="file"></input><br><br>
<script src="https://raw.github.com/mrdoob/three.js/master/build/three.min.js"></script>
<script src="https://raw.github.com/mrdoob/three.js/master/examples/js/loaders/STLLoader.js"></script>
<script src="https://raw.github.com/mrdoob/three.js/master/examples/js/controls/TrackballControls.js"></script>
<script>
var container, camera, scene, renderer, controls;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
var width = container.clientWidth;
var height = container.clientHeight;
camera = new THREE.PerspectiveCamera(
35, // field of view in degrees?
width / height, // canvas based aspect ratio; use when canvas is smaller than page
.1 , // distance to nearest side of rendered space
10000 // distance to farthest side of rendered space
);
camera.position.set( 0, 0, 10);
scene = new THREE.Scene();
controls = new THREE.TrackballControls( camera , container);
controls.addEventListener( 'change', render );
// object
var loader = new THREE.STLLoader();
loader.addEventListener( 'load', function ( event ) {
var geometry = event.content;
var material = new THREE.MeshLambertMaterial( { ambient: 0xff5533, color: 0xff5533 } );
var mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
} );
loader.load( 'path to .stl file on server usually goes here' );
// lights
scene.add( new THREE.AmbientLight( 0x222222 ) );
var directionalLight = new THREE.DirectionalLight( 0xffffff, 1 );
directionalLight.position = camera.position;
scene.add( directionalLight );
// renderer
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setSize( width , height );
container.appendChild( renderer.domElement );
window.addEventListener( 'resize', onWindowResize, false );
}
function addLight( x, y, z, color, intensity ) {
var directionalLight = new THREE.DirectionalLight( color, intensity );
directionalLight.position.set( x, y, z )
scene.add( directionalLight );
}
function onWindowResize() {
camera.aspect = width / height;
camera.updateProjectionMatrix();
renderer.setSize( width, height );
}
function animate() {
requestAnimationFrame( animate );
controls.update();
render();
}
function render() {
camera.lookAt( scene.position );
renderer.render( scene, camera );
}
</script>
</body>
</html>
推荐答案
脚本是否在服务器上?通常，Web 浏览器不允许使用 file://引用，除非页面本身是一个 file://引用(即使如此，您可能需要设置一些安全/调试标志，具体取决于浏览器).因此，如果您在通过 http://访问的页面中运行 webgl 脚本，除非您通过 dropbox 等文件服务搭载，否则您可能会走运.
Is the script on a server? In general web browsers are made to not permit file:// references except when the page itself is a file:// reference (and even then you might need to set some security/debug flags, varying according to the browser). So if you are running a webgl script in a page that's accessed via http:// you may be out of luck unless you piggyback through a file service like dropbox.
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