Ch. 5, Fig. 22 - D3.js in Action

This is the code for Chapter 5, Figure 22 from D3.js in Action showing how to use d3.layout.stack() to create a stacked bar chart.

<html>
<head>
  <title>D3 in Action Chapter 5 - Example 10</title>
  <meta charset="utf-8" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
</head>
<style>
  svg {
    height: 500px;
    width: 500px;
    border: 1px solid gray;
  }
  line {
  shape-rendering: crispEdges;
  stroke: #000000;
  }

line.minor  {
  stroke: #777777;
  stroke-dasharray: 2,2;
}

path.domain {
  fill: none;
  stroke: black;
}
</style>
<body>

<div id="viz">
  <svg>
  </svg>
</div>
</body>
  <footer>
    
<script>
    d3.csv("movies.csv", function(error,data) {dataViz(data)});

function dataViz(incData) {
    expData = incData;
    stackData = [];
    
    var xScale = d3.scale.linear()
    .domain([1, 10])
    .range([20, 440]);

var yScale = d3.scale.linear()
    .domain([0, 70])
    .range([480, 0]);

var heightScale = d3.scale.linear()
    .domain([0, 70])
    .range([0, 480]);
    
    var movieColors = d3.scale.category10(["movie1","movie2","movie3","movie4","movie5","movie6"]);

for (x in incData[0]) {
      if (x != "day") {
        var newMovieObject = {name: x, values: []};
        for (y in incData) {
          newMovieObject.values.push({x: parseInt(incData[y]["day"]) ,y: parseInt(incData[y][x])})
        }
        stackData.push(newMovieObject);
      }
    }

stackLayout = d3.layout.stack()
    .values(function(d) { return d.values; });
    
    xAxis = d3.svg.axis().scale(xScale).orient("bottom").tickSize(480).ticks(10);    
    d3.select("svg").append("g").attr("id", "xAxisG").call(xAxis);
    
    yAxis = d3.svg.axis().scale(yScale).orient("right").ticks(8).tickSize(480).tickSubdivide(true);    
    d3.select("svg").append("g").attr("id", "yAxisG").call(yAxis);

d3.select("svg").selectAll("g.bar")
    .data(stackLayout(stackData))
    .enter()
    .append("g")
    .attr("class", "bar")
    .each(function(d) {
    d3.select(this).selectAll("rect")
    .data(d.values)
    .enter()
    .append("rect")
    .attr("x", function(p) { return xScale(p.x) - 15; })
    .attr("y", function(p) { return yScale(p.y + p.y0); })
    .attr("height", function(p) { return heightScale(p.y); })
    .attr("width", 30)
    .style("fill", movieColors(d.name))      
    })
    
  }
</script>
  </footer>

</html>

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js