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license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!DOCTYPE html> | |
<head> | |
<meta charset="utf-8"> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
<style> | |
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
svg { width:100%; height: 100%; background: RGBA(87, 57, 90, 1) } | |
</style> | |
</head> | |
<body> | |
<script> | |
// Feel free to change or delete any of the code you see! | |
var svg = d3.select("body").append("svg") | |
// curcle numbers | |
var circles = d3.range(5); | |
var smallRadius = 40; | |
var largeRadius = 80; | |
var marginLeft = window.innerWidth/2 - (circles.length - 2) * smallRadius - largeRadius; | |
var cycleCount = 0; | |
var incrementCount = true; | |
var ratio = largeRadius/smallRadius; | |
svg.selectAll('circle').data(circles) | |
.enter().append("circle") | |
.attr({ | |
cx: function(d, i){ | |
if (d < cycleCount) return smallRadius * 2 * d + marginLeft; | |
if (d === cycleCount) return largeRadius/2 + smallRadius * 2 * d + marginLeft; | |
if (d > cycleCount) return largeRadius + smallRadius * 2 * d + marginLeft; | |
}, | |
cy: window.innerHeight/2, | |
fill: 'RGBA(34, 179, 123, 1)', | |
r: function(d, i){ | |
if (i === cycleCount) return largeRadius; | |
return smallRadius; | |
} | |
}) | |
.each(cycle); | |
var numberCircles = circles.length - 1; | |
function cycle(data) { | |
if (data === 0){ | |
if (cycleCount === numberCircles) incrementCount = false; | |
if (cycleCount === 0) incrementCount = true; | |
if (incrementCount) cycleCount++; | |
if (!incrementCount) cycleCount--; | |
} | |
d3.select(this).transition().duration(250) | |
.attr('r', function(d, i){ | |
if (cycleCount === d) return largeRadius; | |
return smallRadius; | |
}) | |
.attr('cx', function(d, i){ | |
if (d < cycleCount) return 0 + smallRadius * 2 * d + marginLeft; | |
if (d === cycleCount) return largeRadius/2 + smallRadius * 2 * (d) + marginLeft; | |
if (d > cycleCount) return largeRadius + smallRadius * 2 * (d) + marginLeft; | |
}) | |
.each("end", cycle); | |
} | |
</script> | |
</body> |
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