Stacked bars practice

_.md

[ Launch: Stacked bars practice ] 6131413 by tarvaina

config.json

{"description":"Stacked bars practice","endpoint":"","display":"svg","public":true,"require":[],"fileconfigs":{"inlet.js":{"default":true,"vim":false,"emacs":false,"fontSize":12},"_.md":{"default":true,"vim":false,"emacs":false,"fontSize":12},"config.json":{"default":true,"vim":false,"emacs":false,"fontSize":12}},"fullscreen":false,"play":false,"loop":false,"restart":false,"autoinit":true,"pause":true,"loop_type":"period","bv":false,"nclones":15,"clone_opacity":0.4,"duration":3000,"ease":"linear","dt":0.01,"thumbnail":"http://i.imgur.com/zDIQoOA.png"}

inlet.js

var graphHeight = 594;

var data = [
  [{y: 3}, {y: 3}, {y: 3}, {y: 13}, {y: 3}],
  [{y: 11}, {y: 3}, {y: 3}, {y: 3}, {y: 6}],
  [{y: 3}, {y: 7}, {y: 7}, {y: 3}, {y: 3}]
];

var stack = d3.layout.stack();
stack(data);

var maxY = d3.max(data, function(d) {
  return d3.max(d, function(v) {
    return v.y + v.y0;
  });
});

console.log(maxY);

var scaleY = d3.scale.linear().domain([0, maxY]).range([0, graphHeight])

var svg = d3.select("svg");

var colors = d3.scale.category20();


var layers = svg.selectAll("g").data(data).enter().append("g")
  .style("fill", function(d, i) { return colors(i); });

var bars = layers.selectAll("rect")
  .data(function(d) { return d; })
  .enter()
  .append("rect")
  .attr({
    x: function(d, i) { return 30 + 13 * i; },
    y: function(d, i) { return 30 + graphHeight - scaleY(d.y0 + d.y); },
    width: 9,
    height: function(d, i) { return scaleY(d.y); }
  });