284 lines
7.0 KiB
HTML
284 lines
7.0 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - exporter - obj</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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<link type="text/css" rel="stylesheet" href="main.css">
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<style>
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.floating {
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background : #000000;
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opacity : 0.8;
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width : 80%;
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height : 80%;
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position : absolute;
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left : 10%;
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top : 10%;
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border : 1px solid #555555;
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padding : 10px;
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display : none;
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overflow : auto;
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z-index: 100;
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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="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - exporter - obj<br /><br />
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<button id="triangle">triangle</button>
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<button id="cube">cube</button>
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<button id="cylinder">cylinder</button>
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<button id="multiple">multiple</button>
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<button id="transformed">transformed</button>
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<button id="points">points</button><br /><br />
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<button id="export">export to obj</button>
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</div>
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<script type="module">
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import * as THREE from '../build/three.module.js';
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import { OBJExporter } from './jsm/exporters/OBJExporter.js';
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let camera, scene, light, renderer;
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let exportButton, floatingDiv;
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let mouseX = 0, mouseY = 0;
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function exportToObj() {
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const exporter = new OBJExporter();
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const result = exporter.parse( scene );
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floatingDiv.style.display = 'block';
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floatingDiv.innerHTML = result.split( '\n' ).join( '<br />' );
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}
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function addGeometry( type ) {
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for ( let i = 0; i < scene.children.length; i ++ ) {
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const child = scene.children[ i ];
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if ( child.isMesh || child.isPoints ) {
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child.geometry.dispose();
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scene.remove( child );
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i --;
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}
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}
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if ( type === 1 ) {
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const material = new THREE.MeshLambertMaterial( { color: 0x00cc00 } );
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const geometry = generateTriangleGeometry();
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scene.add( new THREE.Mesh( geometry, material ) );
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} else if ( type === 2 ) {
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const material = new THREE.MeshLambertMaterial( { color: 0x00cc00 } );
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const geometry = new THREE.BoxGeometry( 100, 100, 100 );
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scene.add( new THREE.Mesh( geometry, material ) );
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} else if ( type === 3 ) {
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const material = new THREE.MeshLambertMaterial( { color: 0x00cc00 } );
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const geometry = new THREE.CylinderGeometry( 50, 50, 100, 30, 1 );
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scene.add( new THREE.Mesh( geometry, material ) );
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} else if ( type === 4 || type === 5 ) {
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const material = new THREE.MeshLambertMaterial( { color: 0x00cc00 } );
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const geometry = generateTriangleGeometry();
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const mesh = new THREE.Mesh( geometry, material );
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mesh.position.x = - 200;
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scene.add( mesh );
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const geometry2 = new THREE.BoxGeometry( 100, 100, 100 );
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const mesh2 = new THREE.Mesh( geometry2, material );
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scene.add( mesh2 );
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const geometry3 = new THREE.CylinderGeometry( 50, 50, 100, 30, 1 );
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const mesh3 = new THREE.Mesh( geometry3, material );
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mesh3.position.x = 200;
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scene.add( mesh3 );
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if ( type === 5 ) {
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mesh.rotation.y = Math.PI / 4.0;
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mesh2.rotation.y = Math.PI / 4.0;
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mesh3.rotation.y = Math.PI / 4.0;
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}
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} else if ( type === 6 ) {
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const points = [ 0, 0, 0, 100, 0, 0, 100, 100, 0, 0, 100, 0 ];
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const colors = [ 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0 ];
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const geometry = new THREE.BufferGeometry();
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geometry.setAttribute( 'position', new THREE.Float32BufferAttribute( points, 3 ) );
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geometry.setAttribute( 'color', new THREE.Float32BufferAttribute( colors, 3 ) );
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const material = new THREE.PointsMaterial( { size: 10, vertexColors: true } );
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const pointCloud = new THREE.Points( geometry, material );
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pointCloud.name = 'point cloud';
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scene.add( pointCloud );
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}
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}
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function init() {
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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document.body.appendChild( renderer.domElement );
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camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.set( 0, 0, 400 );
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scene = new THREE.Scene();
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light = new THREE.DirectionalLight( 0xffffff );
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scene.add( light );
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addGeometry( 1 );
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window.addEventListener( 'click', onWindowClick );
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window.addEventListener( 'resize', onWindowResize );
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document.addEventListener( 'mousemove', onDocumentMouseMove );
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document.addEventListener( 'mouseover', onDocumentMouseMove );
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document.getElementById( 'triangle' ).addEventListener( 'click', function () {
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addGeometry( 1 );
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} );
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document.getElementById( 'cube' ).addEventListener( 'click', function () {
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addGeometry( 2 );
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} );
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document.getElementById( 'cylinder' ).addEventListener( 'click', function () {
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addGeometry( 3 );
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} );
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document.getElementById( 'multiple' ).addEventListener( 'click', function () {
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addGeometry( 4 );
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} );
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document.getElementById( 'transformed' ).addEventListener( 'click', function () {
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addGeometry( 5 );
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} );
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document.getElementById( 'points' ).addEventListener( 'click', function () {
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addGeometry( 6 );
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} );
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exportButton = document.getElementById( 'export' );
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exportButton.addEventListener( 'click', function () {
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exportToObj();
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} );
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floatingDiv = document.createElement( 'div' );
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floatingDiv.className = 'floating';
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document.body.appendChild( floatingDiv );
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}
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function onWindowClick( event ) {
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let needToClose = true;
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let target = event.target;
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while ( target !== null ) {
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if ( target === floatingDiv || target === exportButton ) {
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needToClose = false;
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break;
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}
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target = target.parentElement;
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}
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if ( needToClose ) {
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floatingDiv.style.display = 'none';
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}
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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 onDocumentMouseMove( event ) {
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const windowHalfX = window.innerWidth / 2;
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const windowHalfY = window.innerHeight / 2;
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mouseX = ( event.clientX - windowHalfX ) / 2;
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mouseY = ( event.clientY - windowHalfY ) / 2;
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}
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function animate() {
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requestAnimationFrame( animate );
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camera.position.x += ( mouseX - camera.position.x ) * 0.05;
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camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
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camera.lookAt( scene.position );
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light.position.set( camera.position.x, camera.position.y, camera.position.z ).normalize();
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renderer.render( scene, camera );
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}
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function generateTriangleGeometry() {
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const geometry = new THREE.BufferGeometry();
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const vertices = [];
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vertices.push( - 50, - 50, 0 );
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vertices.push( 50, - 50, 0 );
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vertices.push( 50, 50, 0 );
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geometry.setAttribute( 'position', new THREE.Float32BufferAttribute( vertices, 3 ) );
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geometry.computeVertexNormals();
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return geometry;
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}
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init();
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animate();
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</script>
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</body>
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</html>
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