Skip to content

Instantly share code, notes, and snippets.

@curran

curran/README.md

Last active September 10, 2015 00:35
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save curran/20e0f0bfb3e1c20c6535 to your computer and use it in GitHub Desktop.
Save curran/20e0f0bfb3e1c20c6535 to your computer and use it in GitHub Desktop.
Download ZIP
Spinny Loading Icon
Raw
README.md

A D3 implementation of the classic spinny loading icon.

web counter
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<script src="http://d3js.org/d3.v3.min.js"></script>
<meta charset="utf-8">
<title>Spinny</title>
</head>
<body>
<script>
var outerWidth = 960;
var outerHeight = 500;
var centerX = outerWidth / 2;
var centerY = outerHeight / 2;
var minRadius = 1;
var maxRadius = 3;
var numDots = 10;
var ringRadius = 13;
var rotation = 0;
var rotationIncrement = 3;
var angle = d3.scale.linear()
.domain([0, numDots])
.range([0, Math.PI * 2]);
var radius = d3.scale.linear()
.domain([0, numDots - 1])
.range([maxRadius, minRadius]);
var g = d3.select("body")
.append("svg")
.attr("width", outerWidth)
.attr("height", outerHeight)
.append("g")
.attr("transform", "translate(" + centerX + "," + centerY + ")")
.append("g");
var circles = g.selectAll("circle")
.data(d3.range(numDots))
.enter().append("circle")
.attr("cx", function (d){
return Math.sin(angle(d)) * ringRadius;
})
.attr("cy", function (d){
return Math.cos(angle(d)) * ringRadius;
})
.attr("r", radius);
d3.timer(function (){
g.attr("transform", "rotate(" + rotation + ")");
rotation += rotationIncrement;
});
</script>
</body>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment