Icosahedron

Developer
Dmitriy Karpov
Size
4,053 Kb
Views
52,624
  1. Icosahedron Previews
  2. Icosahedron HTML Codes
  3. Icosahedron CSS Codes
  4. Icosahedron JS Codes

How do I make an icosahedron?

CSS 3D transforms. What is a icosahedron? How do you make a icosahedron? This script and codes were developed by Dmitriy Karpov on 27 August 2022, Saturday.

Icosahedron Previews
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Icosahedron - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Icosahedron</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <wrapper>	<h1>Icosahedron</h1> <header> <div>	<span>edge</span>	<input id="edge" type="range" min="50" max="250" value="100" step="1"> <b>100</b> </div> <div>	<span>angle</span>	<input id="angle" type="range" min="0" max="180" value="30" step="1"> <b>30</b> </div> </header> <section>	<figure id="icosahedron"> </figure> </section> <footer>	<a href="http://en.wikipedia.org/wiki/Icosahedron" target="_blank">Icosahedron</a> is regular polyhedron, one of the <a href="http://en.wikipedia.org/wiki/Platonic_solid" target="_blank">Platonic solids</a>. Each of the 20 sides is an equilateral triangle. The number of edges is 30, vertices - 12. </footer> </wrapper> <script src="js/index.js"></script>
</body>
</html>

Icosahedron - Script Codes CSS Codes

html {	height:100%;	width:100%;	min-width:460px;	min-height:460px; position:relative;
}
body {	position:absolute;	top:0; left:0; right:0; bottom:0;	background-color:#222;	font-family:Arial, Helvetica, sans-serif;	font-size:11px;	color:#777;	background-image:-webkit-radial-gradient(cover, #333, #111);	background-image: -moz-radial-gradient(cover, #333, #111);	background-image: radial-gradient(cover, #333, #111);
}
a {	color:#44ABDA;	text-decoration:none;
}
wrapper {	position:absolute;	height:450px;	width:450px;	top:50%; left:50%;	margin-top:-225px;	margin-left:-225px;	-webkit-perspective:500px; -moz-perspective:500px; perspective:500px;
}
h1 {	font-size:22px;	margin:0;	font-weight:normal;	color:#FFF;	position:absolute;	top:6px; left:0;
}
/* header */
header {	position:absolute;	top:0; right:0;
}
header div {	margin:2px 0 0 0;
}
header span {	display:inline-block;	vertical-align:middle;	width:32px;	color:#999;
}
header b {	color:#44ABDA;	display:inline-block;	vertical-align:middle;	font-weight:normal;	width:20px;
}
header input {	display:inline-block;	vertical-align:middle;	background:#111; width:120px; height:12px;	-webkit-appearance:none;	-webkit-transition:background 0.2s ease; -moz-transition:background 0.2s ease; transition:background 0.2s ease;
}
header input:focus {	outline:none;
}
header input:hover {	background:#090909;
}
header input::-webkit-slider-thumb { background:#44ABDA; width:4px; height:14px;	-webkit-appearance:none;
}
/* section */
section {	position:absolute;	top:0; left:0; right:0; bottom:0;	-webkit-animation:spin 8s linear infinite; -moz-animation:spin 8s linear infinite; animation:spin 8s linear infinite;
}
section, section figure, section span {	-webkit-transform-style:preserve-3d; -moz-transform-style:preserve-3d; transform-style:preserve-3d;
}
section figure {	position:absolute;	margin:0;	top:0; left:0; right:0; bottom:0;	-webkit-transform:rotateZ(30deg); -moz-transform:rotateZ(30deg); transform:rotateZ(30deg);
}
section span {	display:block;	position:absolute;	overflow:hidden;
}
section span:before {	content:'';	position:absolute;	width:100%;	height:100%;	background:rgba(0,0,0,.95);	-webkit-transform:rotate(60deg) skew(30deg); -moz-transform:rotate(60deg) skew(30deg); transform:rotate(60deg) skew(30deg);
}
section span.a:before {	top:50%;	border-top:2px dashed #FFF;
}
section span.b {	border-top:2px dashed #FFF;
}
section span.b:before {	top:-50%;	border-right:2px dashed #FFF;
}
/* footer */
footer {	position:absolute;	bottom:0; left:0; right:0;	font-size:10px;
}
/* keyframes */
@-webkit-keyframes spin {	from {-webkit-transform:translateZ(-230px) rotateY(0deg);}	to {-webkit-transform:translateZ(-230px) rotateY(360deg);}
}
@-moz-keyframes spin {	from {-moz-transform:translateZ(-230px) rotateY(0deg);}	to {-moz-transform:translateZ(-230px) rotateY(360deg);}
}
@keyframes spin {	from {transform:translateZ(-230px) rotateY(0deg);}	to {transform:translateZ(-230px) rotateY(360deg);}
}

Icosahedron - Script Codes JS Codes

var figure;	var Icosahedron = function(element) {	// --------------	// vars	// --------------	var e = this;	e.c = element;	e.l = 20; // triangles length	e.s = 150; // edge size	e.a = 108; // pentagon's angle	e.b = 2; // border width	// --------------	// methods	// --------------	e.css = function(s, i) {	var n = e.span[i];	for (var p in s) {	switch(p) {	case 'name':	n.className = s[p];	break	case 'transform':	var t = '';	for (var a in s[p]) {	t += a + '(' + s[p][a] + ') '	}	n.style[e.transform] = t;	break;	default:	n.style[p] = s[p];	}	}	}	// edge style	e.draw = function() {	for (var i = 0; i < e.l; i++) {	var s = {	width: e.s + 'px',	height: e.h + 'px',	top: (e.c.offsetHeight - e.h) / 2 + 'px',	left: (e.c.offsetWidth - e.s) / 2 + 'px'	}	if (i < e.l / 4) {	s.name = 'a';	s.transform = {	translateY: -e.t + 'px',	rotateY: 360/5 * i + 'deg',	translateZ: e.ry + 'px',	rotateX: 90-e.ax + 'deg'	}	}	else if (i >= e.l / 4 && i < e.l * 3/4) {	var k = (i % 2 == 0) ? 1 : -1;	s.name = (k == 1) ? 'b' : 'a';	s.transform = {	rotateY: 360/10*i + 'deg',	translateZ: e.rz + 'px',	rotateX: (90-e.ay)/2*k + 'deg'	}	}	else {	s.name = 'b';	s.transform = {	translateY: e.t + 'px',	rotateY: 360/5*(i+0.5) + 'deg',	translateZ: e.ry + 'px',	rotateX: e.ax-90 + 'deg'	}	}	e.css(s, i);	}	}	// icosahedron properties	e.init = function() {	e.h = e.s*Math.sin(Math.PI/3); // triangle height	e.hx = e.s*Math.sin(Math.PI*3/10); // body height	e.rx = e.s/2*Math.tan(Math.PI*3/10); // piramid radius	e.rz = e.s/4/Math.tan(Math.PI/10) + e.b*2; // body radius	e.ax = Math.acos(e.rx/e.h)*180/Math.PI; // piramid face angle	e.ay = Math.asin(e.hx/e.h)*180/Math.PI; // body face angel	e.ry = e.h/2*Math.cos(e.ax*Math.PI/180) + e.b // piramid midradius	e.t = Math.sin((90-e.ax)*Math.PI/180)*e.h + e.b // piramid height	e.draw();	}	// detect transform property	e.detector = function() {	var prefixes = [	'transform',	'WebkitTransform',	'MozTransform'	];	for (var i = 0; i < prefixes.length; i++) {	var div = document.createElement('div');	var ind = div.style[prefixes[i]];	if (ind !== undefined) {	return prefixes[i];	}	}	}	// add edges	e.html = function() {	for (var i = 0; i < e.l; i++) {	var n = document.createElement('span');	e.c.appendChild(n);	}	e.span = e.c.getElementsByTagName('span');	e.transform = e.detector();	}	// create	e.create = function() {	e.html();	e.init();	}	}	// scaling	var scale = function() {	figure.s = parseInt(this.value);	this.nextElementSibling.innerHTML = this.value;	figure.init();	return false;	}	// ratation	var rotate = function() {	var val = parseInt(this.value);	this.nextElementSibling.innerHTML = this.value;	figure.c.style[figure.transform] = 'rotateZ(' + val + 'deg)'	return false;	}	// initialization	var init = function() {	var element = document.getElementById('icosahedron');	figure = new Icosahedron(element);	figure.create();	var edge = document.getElementById('edge');	var angle = document.getElementById('angle');	edge.addEventListener('change', scale, false);	angle.addEventListener('change', rotate, false);	}	window.addEventListener('DOMContentLoaded', init, false);
Icosahedron - Script Codes
Icosahedron - Script Codes
Home Page Home
Developer Dmitriy Karpov
Username karpovsystems
Uploaded August 27, 2022
Rating 4
Size 4,053 Kb
Views 52,624
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