Created
August 2, 2012 04:40
-
-
Save erikhazzard/3233638 to your computer and use it in GitHub Desktop.
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> | |
<html> | |
<head> | |
<title>Simple Stack</title> | |
<style> | |
svg { | |
border: solid 1px #ccc; | |
font: 10px sans-serif; | |
shape-rendering: crispEdges; | |
} | |
</style> | |
</head> | |
<body> | |
<input type='button' value='Update' id='update' /> | |
<div id="viz"></div> | |
<script type="text/javascript"> | |
var w = 960, | |
h = 500 | |
// create canvas | |
var svg = d3.select("#viz").append("svg:svg") | |
.attr("class", "chart") | |
.attr("width", w) | |
.attr("height", h ) | |
.append("svg:g") | |
.attr("transform", "translate(10,470)"); | |
var generateMatrix = function(){ | |
var getNum = function(){ | |
return Math.random() * 10000; | |
} | |
var matrix = [ | |
[ 1, getNum(), getNum(), getNum()], | |
[ 2, getNum(), getNum(), getNum()], | |
[ 3, getNum(), getNum(), getNum()], | |
[ 4, getNum(), getNum(), getNum()], | |
[ 5, getNum(), getNum(), getNum()] | |
]; | |
return matrix; | |
} | |
var update = function(){ | |
x = d3.scale.ordinal().rangeRoundBands([0, w-50]) | |
y = d3.scale.linear().range([0, h-50]) | |
z = d3.scale.ordinal().range(["darkblue", "blue", "lightblue"]) | |
// 4 columns: ID,c1,c2,c3 | |
var matrix = generateMatrix(); | |
var remapped =["c1","c2","c3"].map(function(dat,i){ | |
return matrix.map(function(d,ii){ | |
return {x: ii, y: d[i+1] }; | |
}) | |
}); | |
var stacked = d3.layout.stack()(remapped) | |
x.domain(stacked[0].map(function(d) { return d.x; })); | |
y.domain([0, d3.max(stacked[stacked.length - 1], function(d) { return d.y0 + d.y; })]); | |
// Add a group for each column. | |
var valgroup = svg.selectAll("g.valgroup") | |
.data(stacked) | |
.enter().append("svg:g") | |
.attr("class", "valgroup") | |
.style("fill", function(d, i) { return z(i); }) | |
.style("stroke", function(d, i) { return d3.rgb(z(i)).darker(); }); | |
// Add a rect for each date. | |
var rect = valgroup.selectAll("rect") | |
.data(function(d){return d;}) | |
rect.enter().append("svg:rect") | |
.attr("x", function(d) { return x(d.x); }) | |
.attr("y", function(d) { return h; }) | |
.attr("height", function(d) { return 0; }) | |
.attr("width", x.rangeBand()); | |
rect.transition() | |
.duration(250).ease("quad") | |
.attr("x", function(d) { return x(d.x); }) | |
.attr("y", function(d) { return -y(d.y0) - y(d.y); }) | |
.attr("height", function(d) { return y(d.y); }) | |
.attr("width", x.rangeBand()) | |
}; | |
//Update on click | |
d3.select('#update').on('click', update); | |
</script> | |
</body> | |
</html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment