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zanarmstrong/README.md

Last active November 7, 2015 18:47
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Stripped adaptation of Jfire.io animation, for teaching purposes
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index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<style>
</style>
</head>
<body>
<script>
// created by http://jfire.io/animations/2015-03-09/, adapted for demo
var width = 500,
height = 500,
n = 20;
var margin = {top: 20, right: 10, bottom: 20, left: 10};
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
var g = svg.selectAll(".groups")
.data(d3.range(n))
.enter().append("g").attr("class", "group");
g.append("path")
.attr("fill", "none")
.attr("stroke", "#d1d1d1")
.attr("stroke-width", 3)
.attr("d", "M-150,0L150,0");
g.selectAll("ellipse")
.data([-150, 150])
.enter().append("ellipse")
.attr("cx", function(d) { return d; })
.attr("cy", 0)
.attr("rx", 10)
.attr("ry", 7)
.attr("fill", "#bbb");
// step #1: write a translation and scalar function to replace the xxxx's below
g.attr("transform", function(d) {return "translate(xxxxxx)scale(xxxxx)";})
// step #2: add time as an element in your translation function to animate
/*
d3.timer(function(time) {
g.attr("transform", function(d) {return "translate(xxxxxx)scale(xxxxx)";})
});
*/
</script>
</body>
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