D3 Examples - Capabilities - Stacked to multiple

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•<!DOCTYPE html>
<meta charset="utf-8">
​
<link type="text/css" rel="stylesheet" href="tooltip-styles-stackedchart.css">
<style>
​
body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: white;
  background-color: black;
  margin: auto;
  position: relative;
  width: 960px;
}
​
text {
  font: 10px sans-serif;
    fill: white;
}
​
.axis path {
  display: none;
}
​
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
​
.group-label {
  font-weight: bold;
  text-anchor: end;
}
​
form {
  position: absolute;
  right: 10px;
  top: 10px;
}
​
label {
​
    top: 10px;
    right: 0px;
}
​
​
​
</style>
<form>
  <label><input type="radio" name="mode" value="multiples" checked> Multiples</label>
  <label><input type="radio" name="mode" value="stacked"> Stacked</label>
</form>
​
<script src="https://d3js.org/d3.v3.min.js"></script>
<script src="d3-tip.js"></script>
<script>
​
​
​
​
var margin = {top: 10, right: 20, bottom: 20, left: 240},
    width = 960 - margin.left - margin.right,
    height = 700 - margin.top - margin.bottom;
​
var y0 = d3.scale.ordinal()
    .rangeRoundBands([height, 0], .4);
​
var y1 = d3.scale.linear();
​
var x = d3.scale.ordinal()
    .rangeRoundBands([0, width], .1, 0);
​
var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");
​
var nest = d3.nest()
    .key(function(d) { return d.capability; });
​
var stack = d3.layout.stack()
    .values(function(d) { return d.values; })
    .x(function(d) { return d.assessmentdate; })
    .y(function(d) { return d.totalyears; })
    .out(function(d, y0) { d.valueOffset = y0; });
​
var color = d3.scale.ordinal();
​
var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
    
    
    var tip = d3.tip()
  .attr('class', 'd3-tip')
  .offset([0, -195])
  .html(function(d) {
    return "<strong>Total years:</strong> " + d.totalyears;
  })
  
  svg.call(tip);
​
d3.tsv("ba-skills.tsv", function(error, data) {
​
  data.forEach(function(d) {
    d.totalyears = +d.totalyears;
  });
​
  var dataByGroup = nest.entries(data);
​
  stack(dataByGroup);
  x.domain(dataByGroup[0].values.map(function(d) { return d.assessmentdate; }));
  y0.domain(dataByGroup.map(function(d) { return d.key; }));
  y1.domain([0, d3.max(data, function(d) { return d.totalyears; })]).range([y0.rangeBand(), 0]);
​
  color
    .range(["darkred","red"])
    .domain([0, dataByGroup.length - 1]);
  
  /*color
      .range(d3.range(dataByGroup.length).map(d3.scale.linear()
      .domain([0, dataByGroup.length - 1])
        .range(["blue", "red"])
        .interpolate(d3.interpolateLab)));*/
        
    /*color
      .range(d3.range(dataByGroup.length).map(d3.scale.linear()
      .domain([0, dataByGroup.length - 1])
        .range(["blue", "red"])
        .interpolate(d3.interpolateLab)));*/
  
  var group = svg.selectAll(".group")
      .data(dataByGroup)
    .enter().append("g")
      .attr("class", "group")
      .attr("transform", function(d) { return "translate(0," + y0(d.key) + ")"; });
​
  group.append("text")
      .attr("class", "group-label")
      .attr("x", -6)
      .attr("y", function(d) { return y1(d.values[0].totalyears / 2); })
      .attr("dy", ".35em")
      .text(function(d) { return d.key; });
​
  group.selectAll("rect")
      .data(function(d) { return d.values; })
    .enter().append("rect")
        .attr("class", "bar")
      .style("fill", function(d) { return color(d.capability); })
      .attr("x", function(d) { return x(d.assessmentdate); })
      .attr("y", function(d) { return y1(d.totalyears); })
      .attr("width", x.rangeBand())
      .attr("height", function(d) { return y0.rangeBand() - y1(d.totalyears); })
      .on('mouseover', tip.show)
      .on('mouseout', tip.hide);;
​
  group.filter(function(d, i) { return !i; }).append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + y0.rangeBand() + ")")
      .call(xAxis);
​
  d3.selectAll("input").on("change", change);
​
  /*var timeout = setTimeout(function() {
    d3.select("input[value=\"stacked\"]").property("checked", true).each(change);
  }, 2000);*/
​
  function change() {
    //clearTimeout(timeout);
    if (this.value === "multiples") transitionMultiples();
    else transitionStacked();
  }
​
  function transitionMultiples() {
    var t = svg.transition().duration(750),
        g = t.selectAll(".group").attr("transform", function(d) { return "translate(0," + y0(d.key) + ")"; });
    g.selectAll("rect").attr("y", function(d) { return y1(d.totalyears); });
    g.select(".group-label").attr("y", function(d) { return y1(d.values[0].totalyears / 2); })
  }
​
  function transitionStacked() {
    var t = svg.transition().duration(750),
        g = t.selectAll(".group").attr("transform", "translate(0," + y0(y0.domain()[0]) + ")");
    g.selectAll("rect").attr("y", function(d) { return y1(d.totalyears + d.valueOffset); });
    g.select(".group-label").attr("y", function(d) { return y1(d.values[0].totalyears / 2 + d.values[0].valueOffset); })
  }
});
​
</script>
    