Question

任何人都可以使用STLLoader.js在网页中显示ASCII（非二进制）.stl对象文件，从而产生干净的“for dummies”HTML示例吗？结果应该让用户在当前的HTML5浏览器中操作对象，并且没有超出灰度对象表面和背景的花哨视觉效果。

STLLoader.js可能需要three.js或three.min.js的帮助，但我不知道。 STLLoader.js包含以下用法示例，但未包含HTML包装器。

STLLoader.js

中的使用示例

     /** 
     * Usage:
     *  var loader = new THREE.STLLoader();
     *  loader.addEventListener( 'load', function ( event ) {
     *
     *      var geometry = event.content;
     *      scene.add( new THREE.Mesh( geometry ) );
     *
     *  } );
     *  loader.load( './models/stl/slotted_disk.stl' );
     */

Answer 1

这三个例子是一个很好的资料来源：

https://github.com/mrdoob/three.js/blob/master/examples/webgl_loader_stl.html

这是一个简化版本：

<!DOCTYPE html>
<html lang="en">
    <head>
        <title>three.js webgl - STL</title>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
        <style>
            body {
                font-family: Monospace;
                background-color: #000000;
                margin: 0px;
                overflow: hidden;
            }

            #info {
                color: #fff;
                position: absolute;
                top: 10px;
                width: 100%;
                text-align: center;
                z-index: 100;
                display:block;

            }

            a { color: skyblue }
        </style>
    </head>
    <body>
        <div id="info">
            STL loader test
        </div>

        <script src="http://threejs.org/build/three.min.js"></script>

        <script src="http://threejs.org/examples/js/loaders/STLLoader.js"></script>

        <script>

            var container, camera, scene, renderer;

            init();
            animate();

            function init() {

                container = document.createElement( 'div' );
                document.body.appendChild( container );

                // renderer

                renderer = new THREE.WebGLRenderer( { antialias: true } );
                renderer.setSize( window.innerWidth, window.innerHeight );
                container.appendChild( renderer.domElement );

                // scene

                scene = new THREE.Scene();

                // camera

                camera = new THREE.PerspectiveCamera( 35, window.innerWidth / window.innerHeight, 1, 10000 );
                camera.position.set( 3, 0.5, 3 );
                scene.add( camera ); // required, because we are adding a light as a child of the camera

                // lights

                scene.add( new THREE.AmbientLight( 0x222222 ) );

                var light = new THREE.PointLight( 0xffffff, 0.8 );
                camera.add( light );

                // object

                var loader = new THREE.STLLoader();
                loader.load( 'slotted_disk.stl', function ( geometry ) {

                    var material = new THREE.MeshPhongMaterial( { color: 0xff5533 } );

                    var mesh = new THREE.Mesh( geometry, material );

                    scene.add( mesh );

                } );

                window.addEventListener( 'resize', onWindowResize, false );

            }

            function onWindowResize() {

                camera.aspect = window.innerWidth / window.innerHeight;

                camera.updateProjectionMatrix();

                renderer.setSize( window.innerWidth, window.innerHeight );

            }

            function animate() {

                requestAnimationFrame( animate );

                render();

            }

            function render() {

                var timer = Date.now() * 0.0005;

                camera.position.x = Math.cos( timer ) * 5;
                camera.position.z = Math.sin( timer ) * 5;

                camera.lookAt( scene.position );

                renderer.render( scene, camera );

            }

        </script>
    </body>
</html>

three.js r.70

需要.js和HTML示例来在网页中显示.STL 3D对象

1 个答案: