SVG radial gradient with a circle. Also works with a donut chart -- for example.
Last active
August 29, 2015 14:02
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Radial Gradient
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<!DOCTYPE html> | |
<meta charset='utf-8'> | |
<title>Radial Gradient"</title> | |
<body> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script> | |
<script> | |
var w = 500, h = 500, | |
r = Math.min(w, h) / 2; | |
var svg = d3.select("body").append("svg") | |
.attr("width", w) | |
.attr("height", h) | |
.append("g") | |
.attr("transform", "translate(" + w/2 + "," + h/2 + ")"); | |
var radialGradient = svg.append("defs") | |
.append("radialGradient") | |
.attr("id", "radial-gradient"); | |
radialGradient.append("stop") | |
.attr("offset", "0%") | |
.attr("stop-color", "red"); | |
radialGradient.append("stop") | |
.attr("offset", "100%") | |
.attr("stop-color", "#fff"); | |
svg.append("circle") | |
.attr("cx", 0) | |
.attr("cy", 0) | |
.attr("r", r) | |
.style("fill", "url(#radial-gradient)"); | |
</script> |
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'> | |
<body> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script> | |
<script> | |
var dataset = { | |
apples: [53245, 28479, 19697, 24037, 40245], | |
}; | |
var width = 460, | |
height = 300, | |
radius = Math.min(width, height) / 2; | |
var color = d3.scale.category20(); | |
var pie = d3.layout.pie() | |
.sort(null); | |
var arc = d3.svg.arc() | |
.innerRadius(radius - 100) | |
.outerRadius(radius - 50); | |
var svg = d3.select("body").append("svg") | |
.attr("width", width) | |
.attr("height", height) | |
.append("g") | |
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
var grads = svg.append("defs").selectAll("radialGradient").data(pie(dataset.apples)) | |
.enter().append("radialGradient") | |
.attr("gradientUnits", "userSpaceOnUse") | |
.attr("cx", 0) | |
.attr("cy", 0) | |
.attr("r", "100%") | |
.attr("id", function(d, i) { return "grad" + i; }); | |
grads.append("stop").attr("offset", "15%").style("stop-color", function(d, i) { return color(i); }); | |
grads.append("stop").attr("offset", "20%").style("stop-color", "white"); | |
grads.append("stop").attr("offset", "27%").style("stop-color", function(d, i) { return color(i); }); | |
var path = svg.selectAll("path") | |
.data(pie(dataset.apples)) | |
.enter().append("path") | |
.attr("fill", function(d, i) { return "url(#grad" + i + ")"; }) | |
.attr("d", arc); | |
</script> |
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