Ribbon Animated Effect

Developer
François Chazal
Size
5,909 Kb
Views
20,240
  1. Ribbon Animated Effect Previews
  2. Ribbon Animated Effect HTML Codes
  3. Ribbon Animated Effect CSS Codes
  4. Ribbon Animated Effect JS Codes

How do I make an ribbon animated effect?

An animated ribbon effect based on svg path definition. What is a ribbon animated effect? How do you make a ribbon animated effect? This script and codes were developed by François Chazal on 21 September 2022, Wednesday.

Ribbon Animated Effect Previews
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Ribbon Animated Effect - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Ribbon Animated Effect</title> <script src="https://s.codepen.io/assets/libs/modernizr.js" type="text/javascript"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css"> <style> /* NOTE: The styles were added inline because Prefixfree needs access to your styles and they must be inlined if they are on local disk! */ @import url(https://fonts.googleapis.com/css?family=Roboto+Condensed:300italic,400italic,700italic,400,300,700);
html { font-size: 11px;
}
body { overflow: hidden; min-height: 100%; margin: 0; padding: 0; font: 1em/1.5em 'Roboto Condensed', sans-serif;
}
/************************************/
#about { position: fixed; left: 0; bottom: 0; width: 100%; height: 50px; color: #fff; background: rgba(0, 0, 0, 0.8);
}
#about-title { position: absolute; left: 25px; bottom: 25px; font-size: 2em; font-weight: 700;
}
#about-author { position: absolute; left: 25px; top: 27px; font-size: .9em; font-weight: 300;
}
#about-author a { color: inherit; text-decoration: inherit;
}
/************************************/
#console { position: fixed; top: 0; right: 0; width: 200px; bottom: 50px; margin: 0; padding: 5px; background: rgba(0, 0, 0, 0.05); border-left: 2px solid rgba(0, 0, 0, 0.1); font-size: .9em; color: rgba(0, 0, 0, 0.3); overflow-y: auto;
}
#console::before { display: block; content: 'CONSOLE'; font-size: 1.1rem; font-weight: bold; margin-bottom: 5px;
}
/************************************/
#content { position: fixed; top: 0; left: 0; width: 100%; height: 100%;
}
#content .container { display: inline-block; margin-top: 20px; width: 256px; height: 256px; font-size: 1.1rem;
}
#content .container * { width: 100%; height: 100%;
}
#content .container::before { position: absolute; height: 20px; padding: 0px 10px; margin-top: -20px; line-height: 20px; color: #fff; font-weight: bold;
}
#content .container:nth-child(1) { background: rgba(128, 0, 0, 0.1);
}
#content .container:nth-child(1)::before { content: "PATH INPUT"; background: maroon;
}
#content .container:nth-child(2) { background: rgba(0, 128, 0, 0.1);
}
#content .container:nth-child(2)::before { content: "RIBBON RENDERING"; background: green;
}
#content .container:nth-child(3) { background: rgba(0, 0, 128, 0.1);
}
#content .container:nth-child(3)::before { content: "RIBBON OUTPUT"; background: navy;
} </style> <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
</head>
<body>	<section id="content">	<div class="container svg">	<svg id="input" viewBox="0 0 100 100">	<g style="fill: none; stroke-width: 0.1; stroke: #000">	<path d="M5,5 h42 v20 h8 l0.01,-18 v18 h8 v-20 h24 v8 h8 v12 h-24 v-12 h8 v6 h-8 v3"></path> <path d="M53,53 v-8 h-8 v8 h16 v-8 l-8,-8 h-8 l-8,8 v8 l8,8 h16"></path>	</g>	</svg>	</div>	<div class="container canvas">	<canvas id="canvas"></canvas>	</div>	<div class="container svg">	<svg id="output" viewBox="0 0 100 100">	</svg>	</div>	</section>	<section id="about">	<div id="about-title">Ribbon Effect</div>	<div id="about-author">an experimentation by François Chazal (<a href="twitter.com/fchazal">@fchazal</a>) for <a href="http://www.webtechs.fr">WebTechs</a></div>	</section> <script src="js/index.js"></script>
</body>
</html>

Ribbon Animated Effect - Script Codes CSS Codes

@import url(https://fonts.googleapis.com/css?family=Roboto+Condensed:300italic,400italic,700italic,400,300,700);
html { font-size: 11px;
}
body { overflow: hidden; min-height: 100%; margin: 0; padding: 0; font: 1em/1.5em 'Roboto Condensed', sans-serif;
}
/************************************/
#about { position: fixed; left: 0; bottom: 0; width: 100%; height: 50px; color: #fff; background: rgba(0, 0, 0, 0.8);
}
#about-title { position: absolute; left: 25px; bottom: 25px; font-size: 2em; font-weight: 700;
}
#about-author { position: absolute; left: 25px; top: 27px; font-size: .9em; font-weight: 300;
}
#about-author a { color: inherit; text-decoration: inherit;
}
/************************************/
#console { position: fixed; top: 0; right: 0; width: 200px; bottom: 50px; margin: 0; padding: 5px; background: rgba(0, 0, 0, 0.05); border-left: 2px solid rgba(0, 0, 0, 0.1); font-size: .9em; color: rgba(0, 0, 0, 0.3); overflow-y: auto;
}
#console::before { display: block; content: 'CONSOLE'; font-size: 1.1rem; font-weight: bold; margin-bottom: 5px;
}
/************************************/
#content { position: fixed; top: 0; left: 0; width: 100%; height: 100%;
}
#content .container { display: inline-block; margin-top: 20px; width: 256px; height: 256px; font-size: 1.1rem;
}
#content .container * { width: 100%; height: 100%;
}
#content .container::before { position: absolute; height: 20px; padding: 0px 10px; margin-top: -20px; line-height: 20px; color: #fff; font-weight: bold;
}
#content .container:nth-child(1) { background: rgba(128, 0, 0, 0.1);
}
#content .container:nth-child(1)::before { content: "PATH INPUT"; background: maroon;
}
#content .container:nth-child(2) { background: rgba(0, 128, 0, 0.1);
}
#content .container:nth-child(2)::before { content: "RIBBON RENDERING"; background: green;
}
#content .container:nth-child(3) { background: rgba(0, 0, 128, 0.1);
}
#content .container:nth-child(3)::before { content: "RIBBON OUTPUT"; background: navy;
}

Ribbon Animated Effect - Script Codes JS Codes

/* BEGINNING OF LOADING BLOCK ****************/
var canvas = null;
var context = null;
var speed = 50; // px/s
var width = 1.5;
var darkColor = '#7A0000';
var lightColor = '#D30B00';
function start() { canvas = document.querySelector('#canvas'); context = canvas.getContext('2d'); canvas.width = canvas.offsetWidth; canvas.height = canvas.offsetHeight; context.save(); context.scale(canvas.width/100,canvas.height/100); parseSVG('#input'); context.restore();
}
window.addEventListener('load', function() {	start();
});
/* END OF LOADING BLOCK **********************/
function det(v1, v2) {	return v1[0]*v2[1] - v2[0]*v1[1];
}
function normalizeVector(vector) {	var size = Math.sqrt(Math.pow(vector[0],2) + Math.pow(vector[1],2));	vector[0] /= size;	vector[1] /= size;	return vector;
}
function vectorFromSegment(segment) {	return normalizeVector([segment[1][0] - segment[0][0], segment[1][1] - segment[0][1]]);
}
function segmentLength(segment) {	return Math.sqrt(Math.pow(segment[1][0] - segment[0][0],2) + Math.pow(segment[1][1] - segment[0][1],2));
}
function parseSVG(id) { var steps = 10; var nodeList = document.querySelectorAll(id+' path'); for (var id=0; id < nodeList.length; id++) { var path = nodeList.item(id); var step = path.getTotalLength() / steps;	var segList = path.pathSegList;	var push = false;	var segments = [];	var segment = [[0,0], [0,0]]; for (var i = 0; i < segList.numberOfItems; i++) {	seg = segList.getItem(i);	//http://www.w3.org/TR/SVG/paths.html#InterfaceSVGPathSeg	switch (seg.pathSegType) {	case 2: //PATHSEG_MOVETO_ABS	segment[0][0] = seg.x;	segment[0][1] = seg.y;	break;	case 3: //PATHSEG_MOVETO_REL	segment[0][0] += seg.x;	segment[0][1] += seg.y;	break;	case 4: //PATHSEG_LINETO_ABS	segment[1][0] = seg.x;	segment[1][1] = seg.y;	push = true;	break;	case 5:	//PATHSEG_LINETO_REL	segment[1][0] += seg.x;	segment[1][1] += seg.y;	push = true;	break;	case 12: //PATHSEG_LINETO_HORIZONTAL_ABS	segment[1][0] = seg.x;	push = true;	break;	case 13: //PATHSEG_LINETO_HORIZONTAL_REL	segment[1][0] += seg.x;	push = true;	break;	case 14: //PATHSEG_LINETO_VERTICAL_ABS	segment[1][1] = seg.y;	push = true;	break;	case 15: //PATHSEG_LINETO_VERTICAL_REL	segment[1][1] += seg.y;	push = true;	break;	default:	}	if (push) {	segments.push([[segment[0][0],segment[0][1]],[segment[1][0],segment[1][1]]]);	segment[0][0] = segment[1][0];	segment[0][1] = segment[1][1];	push = false;	} else {	segment[1][0] = segment[0][0];	segment[1][1] = segment[0][1];	}	}	var lengths = [];	for (var i = 0; i < segments.length; i++)	lengths.push(segmentLength(segments[i]));	var vectors = [];	for (var i = 0; i < segments.length; i++)	vectors.push(vectorFromSegment(segments[i]));	var points = [];	for (var i = 0; i < segments.length; i++)	points.push([segments[i][0][0], segments[i][0][1]]);	points.push([segments[segments.length-1][1][0], segments[segments.length-1][1][1]]);	var tangents = [];	for (var i = 0; i < vectors.length-1; i++)	tangents.push(normalizeVector([vectors[i][0]+vectors[i+1][0], vectors[i][1]+vectors[i+1][1]]));	tangents.unshift([-vectors[0][1], vectors[0][0]]);	tangents.push([-vectors[vectors.length-1][1], vectors[vectors.length-1][0]]);	for (var i = 0; i < points.length-1; i++) {	context.lineWidth=0.1;	context.beginPath();	context.moveTo(points[i][0],points[i][1]);	context.lineTo(points[i+1][0],points[i+1][1]);	context.stroke();	context.closePath();	}	var sections = [];	for (var i = 0; i < points.length; i++) {	if (!i) w = width	else if (i == points.length-1) w = -width	else w = width / det(tangents[i], vectors[i-1]);	sections.push([	[points[i][0] + w * tangents[i][0], points[i][1] + w * tangents[i][1]],	[points[i][0] - w * tangents[i][0], points[i][1] - w * tangents[i][1]]	]);	}	for (var i = 0; i < sections.length-1; i++) {	context.lineWidth=0.2;	context.beginPath();	context.moveTo(sections[i][0][0],sections[i][0][1]);	context.lineTo(sections[i+1][1][0],sections[i+1][1][1]);	context.lineTo(sections[i+1][0][0],sections[i+1][0][1]);	context.lineTo(sections[i][1][0],sections[i][1][1]);	context.lineTo(sections[i][0][0],sections[i][0][1]);	context.fillStyle = (i%2) ? darkColor : lightColor;	context.fill();	context.closePath();	}	createSVG('#output', id, sections, lengths); }
}
var svgns = "http://www.w3.org/2000/svg";
function createSVG(id, node, sections, lengths) {	var svgNode = document.querySelector(id);	var defsNode = document.createElementNS(svgns, 'defs');	var groupNode = document.createElementNS(svgns, 'g');	for (var i = 0; i < sections.length-1; i++) {	var d_init = 'M'+sections[i][0][0]+','+sections[i][0][1]+' ';	d_init += 'L'+sections[i][1][0]+','+sections[i][1][1]+' ';	d_init += 'L'+sections[i][1][0]+','+sections[i][1][1]+' ';	d_init += 'L'+sections[i][0][0]+','+sections[i][0][1]+' ';	d_init += 'L'+sections[i][0][0]+','+sections[i][0][1];	var d_final = 'M'+sections[i][0][0]+','+sections[i][0][1]+' ';	d_final += 'L'+sections[i][1][0]+','+sections[i][1][1]+' ';	d_final += 'L'+sections[i+1][0][0]+','+sections[i+1][0][1]+' ';	d_final += 'L'+sections[i+1][1][0]+','+sections[i+1][1][1]+' ';	d_final += 'L'+sections[i][0][0]+','+sections[i][0][1];	var animNode = document.createElementNS(svgns, 'animate');	animNode.setAttributeNS(null, 'id', 'anim_'+node+'_'+i);	animNode.setAttributeNS(null, 'attributeName', 'd');	animNode.setAttributeNS(null, 'from', d_init);	animNode.setAttributeNS(null, 'to', d_final);	animNode.setAttributeNS(null, 'dur', (lengths[i]/speed)+'s');	animNode.setAttributeNS(null, 'fill', 'freeze');	if (i) animNode.setAttributeNS(null, 'begin', 'anim_'+node+'_'+(i-1)+'.end');	var pathNode = document.createElementNS(svgns, 'path');
//	pathNode.setAttributeNS(null, 'd', d_final);	pathNode.appendChild(animNode);	var clipNode = document.createElementNS(svgns, 'clipPath');	clipNode.setAttributeNS(null, 'id', 'clip_'+node+'_'+i);	clipNode.appendChild(pathNode);	defsNode.appendChild(clipNode);	var pathNode = document.createElementNS(svgns, 'path');	pathNode.setAttributeNS(null, 'd', d_final);	pathNode.setAttributeNS(null, 'clip-path', 'url(#clip_'+node+'_'+i+')');	pathNode.setAttributeNS(null, 'fill', (i%2) ? darkColor : lightColor);	groupNode.appendChild(pathNode);	}	svgNode.appendChild(defsNode);	svgNode.appendChild(groupNode);
}
Ribbon Animated Effect - Script Codes
Ribbon Animated Effect - Script Codes
Home Page Home
Developer François Chazal
Username fchazal
Uploaded September 21, 2022
Rating 3
Size 5,909 Kb
Views 20,240
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