写在前面
本期小编给大家推荐一个炫酷的元素周期表o(*￣▽￣*)ブ。
元素周期表
元素周期表是化学中最重要的工具之一，它是一种将化学元素按照原子序数排列并且以相似性分组的表格。由俄罗斯化学家门捷列夫于1869年首次提出，并在之后经过多次修订和完善。周期表的基本结构是由水平排列的周期和垂直排列的族组成。
元素周期表按照原子序数的增加，从左至右和从上至下地排列化学元素。这种排列方式使得具有相似化学性质的元素出现在同一列，形成了周期性的重复性质。周期表中的每一个水平行称为一个周期，而每一个垂直列则称为一个族。
周期表不仅仅是一种分类工具，更是一种重要的预测性工具。它可以帮助化学家理解元素之间的关系，推断元素的性质和行为。周期表的结构反映了原子结构的规律，例如，原子半径、电负性、电离能、原子量等随周期和族的变化呈现出一定的规律性。
元素周期表的发展推动了化学科学的发展，深化了对元素性质和反应规律的理解，促进了新材料的发现和应用。它不仅在化学领域中有着广泛的应用，还在物理学、地球科学等领域中有着重要的作用。总的来说，元素周期表是化学领域中不可或缺的工具之一，对于理解和应用化学知识具有重要意义。
完整代码
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0"> <title>periodic table of elements</title> <style> html, body { height: 100%; } body { background-color: #000000; margin: 0; font-family: Helvetica, sans-serif; ; overflow: hidden; } a { color: #ffffff; } #info { position: absolute; width: 100%; color: #ffffff; padding: 5px; font-family: Monospace; font-size: 13px; font-weight: bold; text-align: center; z-index: 1; } #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); text-align: center; 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> <script src="js/three.min.js"></script> <script src="js/tween.min.js"></script> <script src="js/TrackballControls.js"></script> <script src="js/CSS3DRenderer.js"></script> <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> var 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, "Uut", "Unutrium", "(284)", 13, 7, "Fl", "Flerovium", "(289)", 14, 7, "Uup", "Ununpentium", "(288)", 15, 7, "Lv", "Livermorium", "(293)", 16, 7, "Uus", "Ununseptium", "(294)", 17, 7, "Uuo", "Ununoctium", "(294)", 18, 7 ]; var camera, scene, renderer; var controls; var objects = []; var 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(); for (var i = 0; i < table.length; i += 5) { var element = document.createElement('div'); element.className = 'element'; element.style.backgroundColor = 'rgba(0,127,127,' + (Math.random() * 0.5 + 0.25) + ')'; var number = document.createElement('div'); number.className = 'number'; number.textContent = (i / 5) + 1; element.appendChild(number); var symbol = document.createElement('div'); symbol.className = 'symbol'; symbol.textContent = table[i]; element.appendChild(symbol); var details = document.createElement('div'); details.className = 'details'; details.innerHTML = table[i + 1] + '<br>' + table[i + 2]; element.appendChild(details); var object = new THREE.CSS3DObject(element); object.position.x = Math.random() * 4000 - 2000; object.position.y = Math.random() * 4000 - 2000; object.position.z = Math.random() * 4000 - 2000; scene.add(object); objects.push(object); var object = new THREE.Object3D(); object.position.x = (table[i + 3] * 140) - 1330; object.position.y = - (table[i + 4] * 180) + 990; targets.table.push(object); } var vector = new THREE.Vector3(); for (var i = 0, l = objects.length; i < l; i++) { var phi = Math.acos(-1 + (2 * i) / l); var theta = Math.sqrt(l * Math.PI) * phi; var object = new THREE.Object3D(); object.position.x = 800 * Math.cos(theta) * Math.sin(phi); object.position.y = 800 * Math.sin(theta) * Math.sin(phi); object.position.z = 800 * Math.cos(phi); vector.copy(object.position).multiplyScalar(2); object.lookAt(vector); targets.sphere.push(object); } var vector = new THREE.Vector3(); for (var i = 0, l = objects.length; i < l; i++) { var phi = i * 0.175 + Math.PI; var object = new THREE.Object3D(); object.position.x = 900 * Math.sin(phi); object.position.y = - (i * 8) + 450; object.position.z = 900 * Math.cos(phi); vector.x = object.position.x * 2; vector.y = object.position.y; vector.z = object.position.z * 2; object.lookAt(vector); targets.helix.push(object); } for (var i = 0; i < objects.length; i++) { var 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 THREE.CSS3DRenderer(); renderer.setSize(window.innerWidth, window.innerHeight); renderer.domElement.style.position = 'absolute'; document.getElementById('container').appendChild(renderer.domElement); controls = new THREE.TrackballControls(camera, renderer.domElement); controls.rotateSpeed = 0.5; controls.minDistance = 500; controls.maxDistance = 6000; controls.addEventListener('change', render); var button = document.getElementById('table'); button.addEventListener('click', function (event) { transform(targets.table, 2000); }, false); var button = document.getElementById('sphere'); button.addEventListener('click', function (event) { transform(targets.sphere, 2000); }, false); var button = document.getElementById('helix'); button.addEventListener('click', function (event) { transform(targets.helix, 2000); }, false); var button = document.getElementById('grid'); button.addEventListener('click', function (event) { transform(targets.grid, 2000); }, false); transform(targets.table, 5000); window.addEventListener('resize', onWindowResize, false); } function transform(targets, duration) { TWEEN.removeAll(); for (var i = 0; i < objects.length; i++) { var object = objects[i]; var 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>
代码分析
这段代码是一个使用HTML、CSS和JavaScript创建的元素周期表。代码中使用了Three.js库来实现3D效果，以及Tween.js库来实现动画效果。
HTML部分定义了页面结构，包括一个用于渲染3D内容的容器div以及一个菜单div，用于切换不同的布局模式。CSS部分定义了页面的样式，包括元素的外观和布局。
JavaScript部分是整个交互的核心。通过创建Three.js中的摄像机、场景、渲染器以及控制器，实现了3D效果的展示和交互。元素数据存储在一个数组中，然后根据不同的布局模式，计算每个元素应该在3D空间中的位置，并使用Tween.js库实现平滑的过渡效果。点击菜单按钮时，调用transform函数，根据选择的布局模式对元素进行重新排列。同时，通过监听窗口大小变化的事件，实现页面响应式布局。
总的来说，这段代码实现了一个具有吸引力的周期表元素的交互式可视化展示，展示了HTML、CSS和JavaScript之间的良好结合，以及如何利用Three.js库创建3D场景和交互效果。
下载代码
(●'◡'●)除了以上的代码，还需要一些js文件哦，在公众号的对话框内回复“html017”即可下载所有的文件喔~
写在最后
我是一只有趣的兔子，感谢你的喜欢o(*￣▽￣*)ブ！
