mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-11-14 18:27:56 +01:00
234 lines
5.4 KiB
HTML
234 lines
5.4 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js canvas - panorama demo</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<style>
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body {
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background-color: rgb(200,200,200);
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margin: 0px;
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overflow: hidden;
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}
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#info {
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position: absolute;
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top: 0px; width: 100%;
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color: #ffffff;
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padding: 5px;
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font-family:Monospace;
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font-size:13px;
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font-weight: bold;
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text-align:center;
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}
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a {
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color: #ffffff;
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}
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</style>
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</head>
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<body>
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<div id="container"></div>
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<div id="info"><a href="http://threejs.org" target="_blank">three.js</a> - panorama demo. cubemap by <a href="http://www.zfight.com/" target="_blank">Jochum Skoglund</a>.</div>
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<script src="../build/three.min.js"></script>
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<script src="js/renderers/Projector.js"></script>
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<script src="js/renderers/CanvasRenderer.js"></script>
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<script>
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var camera, scene, renderer;
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var texture_placeholder,
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isUserInteracting = false,
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onMouseDownMouseX = 0, onMouseDownMouseY = 0,
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lon = 90, onMouseDownLon = 0,
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lat = 0, onMouseDownLat = 0,
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phi = 0, theta = 0,
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target = new THREE.Vector3();
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init();
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animate();
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function init() {
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var container, mesh;
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container = document.getElementById( 'container' );
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camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 1, 1100 );
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scene = new THREE.Scene();
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texture_placeholder = document.createElement( 'canvas' );
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texture_placeholder.width = 128;
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texture_placeholder.height = 128;
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var context = texture_placeholder.getContext( '2d' );
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context.fillStyle = 'rgb( 200, 200, 200 )';
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context.fillRect( 0, 0, texture_placeholder.width, texture_placeholder.height );
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var materials = [
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loadTexture( 'textures/cube/skybox/px.jpg' ), // right
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loadTexture( 'textures/cube/skybox/nx.jpg' ), // left
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loadTexture( 'textures/cube/skybox/py.jpg' ), // top
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loadTexture( 'textures/cube/skybox/ny.jpg' ), // bottom
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loadTexture( 'textures/cube/skybox/pz.jpg' ), // back
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loadTexture( 'textures/cube/skybox/nz.jpg' ) // front
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];
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mesh = new THREE.Mesh( new THREE.BoxGeometry( 300, 300, 300, 7, 7, 7 ), new THREE.MeshFaceMaterial( materials ) );
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mesh.scale.x = - 1;
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scene.add( mesh );
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renderer = new THREE.CanvasRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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document.addEventListener( 'mousedown', onDocumentMouseDown, false );
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document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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document.addEventListener( 'mouseup', onDocumentMouseUp, false );
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document.addEventListener( 'mousewheel', onDocumentMouseWheel, false );
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document.addEventListener( 'touchstart', onDocumentTouchStart, false );
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document.addEventListener( 'touchmove', onDocumentTouchMove, false );
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//
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window.addEventListener( 'resize', onWindowResize, false );
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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function loadTexture( path ) {
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var texture = new THREE.Texture( texture_placeholder );
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var material = new THREE.MeshBasicMaterial( { map: texture, overdraw: 0.5 } );
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var image = new Image();
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image.onload = function () {
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texture.image = this;
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texture.needsUpdate = true;
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};
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image.src = path;
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return material;
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}
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function onDocumentMouseDown( event ) {
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event.preventDefault();
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isUserInteracting = true;
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onPointerDownPointerX = event.clientX;
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onPointerDownPointerY = event.clientY;
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onPointerDownLon = lon;
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onPointerDownLat = lat;
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}
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function onDocumentMouseMove( event ) {
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if ( isUserInteracting === true ) {
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lon = ( onPointerDownPointerX - event.clientX ) * 0.1 + onPointerDownLon;
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lat = ( event.clientY - onPointerDownPointerY ) * 0.1 + onPointerDownLat;
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}
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}
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function onDocumentMouseUp( event ) {
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isUserInteracting = false;
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}
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function onDocumentMouseWheel( event ) {
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camera.fov -= event.wheelDeltaY * 0.05;
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camera.updateProjectionMatrix();
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}
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function onDocumentTouchStart( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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onPointerDownPointerX = event.touches[ 0 ].pageX;
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onPointerDownPointerY = event.touches[ 0 ].pageY;
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onPointerDownLon = lon;
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onPointerDownLat = lat;
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}
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}
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function onDocumentTouchMove( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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lon = ( onPointerDownPointerX - event.touches[0].pageX ) * 0.1 + onPointerDownLon;
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lat = ( event.touches[0].pageY - onPointerDownPointerY ) * 0.1 + onPointerDownLat;
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}
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}
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function animate() {
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requestAnimationFrame( animate );
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update();
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}
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function update() {
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if ( isUserInteracting === false ) {
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lon += 0.1;
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}
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lat = Math.max( - 85, Math.min( 85, lat ) );
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phi = THREE.Math.degToRad( 90 - lat );
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theta = THREE.Math.degToRad( lon );
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target.x = 500 * Math.sin( phi ) * Math.cos( theta );
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target.y = 500 * Math.cos( phi );
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target.z = 500 * Math.sin( phi ) * Math.sin( theta );
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camera.lookAt( target );
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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>
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