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Animate path in D3
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/> | |
<style type="text/css"> | |
#line{ | |
width: 700px; | |
margin: 20px 0; | |
height: 300px; | |
background: #eee; | |
} | |
button { | |
margin: 20px 0 0 20px; | |
} | |
</style> | |
</head> | |
<body> | |
<div id="line"></div> | |
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?2.5.0"></script> | |
<script type="text/javascript"> | |
var w = 700; | |
var h = 300; | |
var svg = d3.select("#line") | |
.append("svg") | |
.attr("width", w) | |
.attr("height", h) | |
.attr("id", "visualization") | |
.attr("xmlns", "http://www.w3.org/2000/svg"); | |
var data = d3.range(11).map(function(){return Math.random()*10}) | |
var x = d3.scale.linear().domain([0, 10]).range([0, 700]); | |
var y = d3.scale.linear().domain([0, 10]).range([10, 290]); | |
var line = d3.svg.line() | |
.interpolate("cardinal") | |
.x(function(d,i) {return x(i);}) | |
.y(function(d) {return y(d);}) | |
var path = svg.append("path") | |
.attr("d", line(data)) | |
.attr("stroke", "steelblue") | |
.attr("stroke-width", "2") | |
.attr("fill", "none"); | |
var totalLength = path.node().getTotalLength(); | |
path | |
.attr("stroke-dasharray", totalLength + " " + totalLength) | |
.attr("stroke-dashoffset", totalLength) | |
.transition() | |
.duration(2000) | |
.ease("linear") | |
.attr("stroke-dashoffset", 0); | |
svg.on("click", function(){ | |
path | |
.transition() | |
.duration(2000) | |
.ease("linear") | |
.attr("stroke-dashoffset", totalLength); | |
}) | |
</script> | |
</body> | |
</html> |
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