A demonstration of arc.padAngle.
Last active
February 9, 2016 01:47
-
-
Save mbostock/99f0a6533f7c949cf8b8 to your computer and use it in GitHub Desktop.
Arc Padding III
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
license: gpl-3.0 |
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> | |
<meta charset="utf-8"> | |
<canvas width="960" height="500"></canvas> | |
<script src="//d3js.org/d3.v4.0.0-alpha.4.min.js"></script> | |
<script> | |
var data = [1, 1, 2, 3, 5, 8, 13]; | |
var canvas = document.querySelector("canvas"), | |
context = canvas.getContext("2d"); | |
var width = canvas.width, | |
height = canvas.height, | |
radius = Math.min(width, height) / 2; | |
var colors = [ | |
"#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd", | |
"#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf" | |
]; | |
var arc = d3.arc() | |
.outerRadius(radius - 10) | |
.innerRadius(radius - 70) | |
.padAngle(0.03) | |
.context(context); | |
var pie = d3.pie(); | |
var arcs = pie(data); | |
context.translate(width / 2, height / 2); | |
context.globalAlpha = 0.5; | |
arcs.forEach(function(d, i) { | |
context.beginPath(); | |
arc(d); | |
context.fillStyle = colors[i]; | |
context.fill(); | |
}); | |
context.globalAlpha = 1; | |
context.beginPath(); | |
arcs.forEach(arc); | |
context.lineWidth = 1.5; | |
context.stroke(); | |
</script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment