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							<!DOCTYPE html>
<html>
	<head>
		<title>three.js css3d - periodic table</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">
		<style>
			a {
				color: #8ff;
			}

			#menu {
				position: absolute;
				bottom: 20px;
				width: 100%;
				text-align: center;
			}

			.element {
				width: 120px;
				height: 160px;
				box-shadow: 0px 0px 12px rgba(0,255,255,0.5);
				border: 1px solid rgba(127,255,255,0.25);
				font-family: Helvetica, sans-serif;
				text-align: center;
				line-height: normal;
				cursor: default;
			}

			.element:hover {
				box-shadow: 0px 0px 12px rgba(0,255,255,0.75);
				border: 1px solid rgba(127,255,255,0.75);
			}

				.element .number {
					position: absolute;
					top: 20px;
					right: 20px;
					font-size: 12px;
					color: rgba(127,255,255,0.75);
				}

				.element .symbol {
					position: absolute;
					top: 40px;
					left: 0px;
					right: 0px;
					font-size: 60px;
					font-weight: bold;
					color: rgba(255,255,255,0.75);
					text-shadow: 0 0 10px rgba(0,255,255,0.95);
				}

				.element .details {
					position: absolute;
					bottom: 15px;
					left: 0px;
					right: 0px;
					font-size: 12px;
					color: rgba(127,255,255,0.75);
				}

			button {
				color: rgba(127,255,255,0.75);
				background: transparent;
				outline: 1px solid rgba(127,255,255,0.75);
				border: 0px;
				padding: 5px 10px;
				cursor: pointer;
			}

			button:hover {
				background-color: rgba(0,255,255,0.5);
			}

			button:active {
				color: #000000;
				background-color: rgba(0,255,255,0.75);
			}
		</style>
	</head>
	<body>

		<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> css3d - periodic table.</div>
		<div id="container"></div>
		<div id="menu">
			<button id="table">TABLE</button>
			<button id="sphere">SPHERE</button>
			<button id="helix">HELIX</button>
			<button id="grid">GRID</button>
		</div>

		<script type="importmap">
			{
				"imports": {
					"three": "../build/three.module.js",
					"three/addons/": "./jsm/"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three';

			import TWEEN from 'three/addons/libs/tween.module.js';
			import { TrackballControls } from 'three/addons/controls/TrackballControls.js';
			import { CSS3DRenderer, CSS3DObject } from 'three/addons/renderers/CSS3DRenderer.js';

			const table = [
				'H', 'Hydrogen', '1.00794', 1, 1,
				'He', 'Helium', '4.002602', 18, 1,
				'Li', 'Lithium', '6.941', 1, 2,
				'Be', 'Beryllium', '9.012182', 2, 2,
				'B', 'Boron', '10.811', 13, 2,
				'C', 'Carbon', '12.0107', 14, 2,
				'N', 'Nitrogen', '14.0067', 15, 2,
				'O', 'Oxygen', '15.9994', 16, 2,
				'F', 'Fluorine', '18.9984032', 17, 2,
				'Ne', 'Neon', '20.1797', 18, 2,
				'Na', 'Sodium', '22.98976...', 1, 3,
				'Mg', 'Magnesium', '24.305', 2, 3,
				'Al', 'Aluminium', '26.9815386', 13, 3,
				'Si', 'Silicon', '28.0855', 14, 3,
				'P', 'Phosphorus', '30.973762', 15, 3,
				'S', 'Sulfur', '32.065', 16, 3,
				'Cl', 'Chlorine', '35.453', 17, 3,
				'Ar', 'Argon', '39.948', 18, 3,
				'K', 'Potassium', '39.948', 1, 4,
				'Ca', 'Calcium', '40.078', 2, 4,
				'Sc', 'Scandium', '44.955912', 3, 4,
				'Ti', 'Titanium', '47.867', 4, 4,
				'V', 'Vanadium', '50.9415', 5, 4,
				'Cr', 'Chromium', '51.9961', 6, 4,
				'Mn', 'Manganese', '54.938045', 7, 4,
				'Fe', 'Iron', '55.845', 8, 4,
				'Co', 'Cobalt', '58.933195', 9, 4,
				'Ni', 'Nickel', '58.6934', 10, 4,
				'Cu', 'Copper', '63.546', 11, 4,
				'Zn', 'Zinc', '65.38', 12, 4,
				'Ga', 'Gallium', '69.723', 13, 4,
				'Ge', 'Germanium', '72.63', 14, 4,
				'As', 'Arsenic', '74.9216', 15, 4,
				'Se', 'Selenium', '78.96', 16, 4,
				'Br', 'Bromine', '79.904', 17, 4,
				'Kr', 'Krypton', '83.798', 18, 4,
				'Rb', 'Rubidium', '85.4678', 1, 5,
				'Sr', 'Strontium', '87.62', 2, 5,
				'Y', 'Yttrium', '88.90585', 3, 5,
				'Zr', 'Zirconium', '91.224', 4, 5,
				'Nb', 'Niobium', '92.90628', 5, 5,
				'Mo', 'Molybdenum', '95.96', 6, 5,
				'Tc', 'Technetium', '(98)', 7, 5,
				'Ru', 'Ruthenium', '101.07', 8, 5,
				'Rh', 'Rhodium', '102.9055', 9, 5,
				'Pd', 'Palladium', '106.42', 10, 5,
				'Ag', 'Silver', '107.8682', 11, 5,
				'Cd', 'Cadmium', '112.411', 12, 5,
				'In', 'Indium', '114.818', 13, 5,
				'Sn', 'Tin', '118.71', 14, 5,
				'Sb', 'Antimony', '121.76', 15, 5,
				'Te', 'Tellurium', '127.6', 16, 5,
				'I', 'Iodine', '126.90447', 17, 5,
				'Xe', 'Xenon', '131.293', 18, 5,
				'Cs', 'Caesium', '132.9054', 1, 6,
				'Ba', 'Barium', '132.9054', 2, 6,
				'La', 'Lanthanum', '138.90547', 4, 9,
				'Ce', 'Cerium', '140.116', 5, 9,
				'Pr', 'Praseodymium', '140.90765', 6, 9,
				'Nd', 'Neodymium', '144.242', 7, 9,
				'Pm', 'Promethium', '(145)', 8, 9,
				'Sm', 'Samarium', '150.36', 9, 9,
				'Eu', 'Europium', '151.964', 10, 9,
				'Gd', 'Gadolinium', '157.25', 11, 9,
				'Tb', 'Terbium', '158.92535', 12, 9,
				'Dy', 'Dysprosium', '162.5', 13, 9,
				'Ho', 'Holmium', '164.93032', 14, 9,
				'Er', 'Erbium', '167.259', 15, 9,
				'Tm', 'Thulium', '168.93421', 16, 9,
				'Yb', 'Ytterbium', '173.054', 17, 9,
				'Lu', 'Lutetium', '174.9668', 18, 9,
				'Hf', 'Hafnium', '178.49', 4, 6,
				'Ta', 'Tantalum', '180.94788', 5, 6,
				'W', 'Tungsten', '183.84', 6, 6,
				'Re', 'Rhenium', '186.207', 7, 6,
				'Os', 'Osmium', '190.23', 8, 6,
				'Ir', 'Iridium', '192.217', 9, 6,
				'Pt', 'Platinum', '195.084', 10, 6,
				'Au', 'Gold', '196.966569', 11, 6,
				'Hg', 'Mercury', '200.59', 12, 6,
				'Tl', 'Thallium', '204.3833', 13, 6,
				'Pb', 'Lead', '207.2', 14, 6,
				'Bi', 'Bismuth', '208.9804', 15, 6,
				'Po', 'Polonium', '(209)', 16, 6,
				'At', 'Astatine', '(210)', 17, 6,
				'Rn', 'Radon', '(222)', 18, 6,
				'Fr', 'Francium', '(223)', 1, 7,
				'Ra', 'Radium', '(226)', 2, 7,
				'Ac', 'Actinium', '(227)', 4, 10,
				'Th', 'Thorium', '232.03806', 5, 10,
				'Pa', 'Protactinium', '231.0588', 6, 10,
				'U', 'Uranium', '238.02891', 7, 10,
				'Np', 'Neptunium', '(237)', 8, 10,
				'Pu', 'Plutonium', '(244)', 9, 10,
				'Am', 'Americium', '(243)', 10, 10,
				'Cm', 'Curium', '(247)', 11, 10,
				'Bk', 'Berkelium', '(247)', 12, 10,
				'Cf', 'Californium', '(251)', 13, 10,
				'Es', 'Einstenium', '(252)', 14, 10,
				'Fm', 'Fermium', '(257)', 15, 10,
				'Md', 'Mendelevium', '(258)', 16, 10,
				'No', 'Nobelium', '(259)', 17, 10,
				'Lr', 'Lawrencium', '(262)', 18, 10,
				'Rf', 'Rutherfordium', '(267)', 4, 7,
				'Db', 'Dubnium', '(268)', 5, 7,
				'Sg', 'Seaborgium', '(271)', 6, 7,
				'Bh', 'Bohrium', '(272)', 7, 7,
				'Hs', 'Hassium', '(270)', 8, 7,
				'Mt', 'Meitnerium', '(276)', 9, 7,
				'Ds', 'Darmstadium', '(281)', 10, 7,
				'Rg', 'Roentgenium', '(280)', 11, 7,
				'Cn', 'Copernicium', '(285)', 12, 7,
				'Nh', 'Nihonium', '(286)', 13, 7,
				'Fl', 'Flerovium', '(289)', 14, 7,
				'Mc', 'Moscovium', '(290)', 15, 7,
				'Lv', 'Livermorium', '(293)', 16, 7,
				'Ts', 'Tennessine', '(294)', 17, 7,
				'Og', 'Oganesson', '(294)', 18, 7
			];

			let camera, scene, renderer;
			let controls;

			const objects = [];
			const targets = { table: [], sphere: [], helix: [], grid: [] };

			init();
			animate();

			function init() {

				camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 10000 );
				camera.position.z = 3000;

				scene = new THREE.Scene();

				// table

				for ( let i = 0; i < table.length; i += 5 ) {

					const element = document.createElement( 'div' );
					element.className = 'element';
					element.style.backgroundColor = 'rgba(0,127,127,' + ( Math.random() * 0.5 + 0.25 ) + ')';

					const number = document.createElement( 'div' );
					number.className = 'number';
					number.textContent = ( i / 5 ) + 1;
					element.appendChild( number );

					const symbol = document.createElement( 'div' );
					symbol.className = 'symbol';
					symbol.textContent = table[ i ];
					element.appendChild( symbol );

					const details = document.createElement( 'div' );
					details.className = 'details';
					details.innerHTML = table[ i + 1 ] + '<br>' + table[ i + 2 ];
					element.appendChild( details );

					const objectCSS = new CSS3DObject( element );
					objectCSS.position.x = Math.random() * 4000 - 2000;
					objectCSS.position.y = Math.random() * 4000 - 2000;
					objectCSS.position.z = Math.random() * 4000 - 2000;
					scene.add( objectCSS );

					objects.push( objectCSS );

					//

					const object = new THREE.Object3D();
					object.position.x = ( table[ i + 3 ] * 140 ) - 1330;
					object.position.y = - ( table[ i + 4 ] * 180 ) + 990;

					targets.table.push( object );

				}

				// sphere

				const vector = new THREE.Vector3();

				for ( let i = 0, l = objects.length; i < l; i ++ ) {

					const phi = Math.acos( - 1 + ( 2 * i ) / l );
					const theta = Math.sqrt( l * Math.PI ) * phi;

					const object = new THREE.Object3D();

					object.position.setFromSphericalCoords( 800, phi, theta );

					vector.copy( object.position ).multiplyScalar( 2 );

					object.lookAt( vector );

					targets.sphere.push( object );

				}

				// helix

				for ( let i = 0, l = objects.length; i < l; i ++ ) {

					const theta = i * 0.175 + Math.PI;
					const y = - ( i * 8 ) + 450;

					const object = new THREE.Object3D();

					object.position.setFromCylindricalCoords( 900, theta, y );

					vector.x = object.position.x * 2;
					vector.y = object.position.y;
					vector.z = object.position.z * 2;

					object.lookAt( vector );

					targets.helix.push( object );

				}

				// grid

				for ( let i = 0; i < objects.length; i ++ ) {

					const object = new THREE.Object3D();

					object.position.x = ( ( i % 5 ) * 400 ) - 800;
					object.position.y = ( - ( Math.floor( i / 5 ) % 5 ) * 400 ) + 800;
					object.position.z = ( Math.floor( i / 25 ) ) * 1000 - 2000;

					targets.grid.push( object );

				}

				//

				renderer = new CSS3DRenderer();
				renderer.setSize( window.innerWidth, window.innerHeight );
				document.getElementById( 'container' ).appendChild( renderer.domElement );

				//

				controls = new TrackballControls( camera, renderer.domElement );
				controls.minDistance = 500;
				controls.maxDistance = 6000;
				controls.addEventListener( 'change', render );

				const buttonTable = document.getElementById( 'table' );
				buttonTable.addEventListener( 'click', function () {

					transform( targets.table, 2000 );

				} );

				const buttonSphere = document.getElementById( 'sphere' );
				buttonSphere.addEventListener( 'click', function () {

					transform( targets.sphere, 2000 );

				} );

				const buttonHelix = document.getElementById( 'helix' );
				buttonHelix.addEventListener( 'click', function () {

					transform( targets.helix, 2000 );

				} );

				const buttonGrid = document.getElementById( 'grid' );
				buttonGrid.addEventListener( 'click', function () {

					transform( targets.grid, 2000 );

				} );

				transform( targets.table, 2000 );

				//

				window.addEventListener( 'resize', onWindowResize );

			}

			function transform( targets, duration ) {

				TWEEN.removeAll();

				for ( let i = 0; i < objects.length; i ++ ) {

					const object = objects[ i ];
					const target = targets[ i ];

					new TWEEN.Tween( object.position )
						.to( { x: target.position.x, y: target.position.y, z: target.position.z }, Math.random() * duration + duration )
						.easing( TWEEN.Easing.Exponential.InOut )
						.start();

					new TWEEN.Tween( object.rotation )
						.to( { x: target.rotation.x, y: target.rotation.y, z: target.rotation.z }, Math.random() * duration + duration )
						.easing( TWEEN.Easing.Exponential.InOut )
						.start();

				}

				new TWEEN.Tween( this )
					.to( {}, duration * 2 )
					.onUpdate( render )
					.start();

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

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

				render();

			}

			function animate() {

				requestAnimationFrame( animate );

				TWEEN.update();

				controls.update();

			}

			function render() {

				renderer.render( scene, camera );

			}

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