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Last active January 21, 2017 21:42
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Circle Tunnel
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index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Circle Tunnel</title>
<style>
body {
background-color: black;
}
.container {
background-color: black;
margin: 0 auto;
display: block;
}
</style>
</head>
<body>
<div id="chart"></div>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
var width = 960;
var height = 500;
var padding = {top: 30, right: 30, bottom: 30, left: 30};
var svg = d3.select("#chart").append("svg")
.attr("width", width)
.attr("height", height)
.attr("class", "container")
.append("g")
.attr("transform", "translate(20, "+ height / 2+ ")");
var data = d3.range(150).map(function(d) {
return d;
});
var circle = svg.selectAll("ellipse")
.data(data)
.enter()
.append("ellipse")
.attr("cy", 0)
.attr("cx", function(d) {return d * 5})
.attr("ry", 5)
.attr("rx", function(d, i) {return 20})
.attr("fill", "black")
.attr("stroke", "white")
.attr("stroke-width", 1)
.transition()
.delay(function(d,i) {
return i * 70
})
.duration(1000)
.on("start", function repeat() {
d3.active(this)
.attr("ry", 50)
.transition()
.attr("ry", 5)
.transition()
.on("start", repeat);
});
</script>
</body>
</html>
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