World Population Single Bar

Current world population visualized using a single rectangle. This is example 5 from the screencast Splitting Charts.

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>D3 Example</title>
    <script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
    <link href='https://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'>
    <style>
    
      .axis text {
        font-family: 'Open Sans', sans-serif;
        font-size: 63pt;
      }

.axis path, .axis line {
        fill: none;
        stroke: #000;
        stroke-width: 5px;
        shape-rendering: crispEdges;
      }

</style>
  </head>
  <body>
    <script>
      var outerWidth = 960;
      var outerHeight = 500;
      var margin = { left: 137, top: 4, right: 23, bottom: 100 };
      var barPadding = 0.2;

var xColumn = "name";
      var yColumn = "population";

var innerWidth  = outerWidth  - margin.left - margin.right;
      var innerHeight = outerHeight - margin.top  - margin.bottom;

var svg = d3.select("body").append("svg")
        .attr("width",  outerWidth)
        .attr("height", outerHeight);
      var g = svg.append("g")
        .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
      var xAxisG = g.append("g")
        .attr("class", "x axis")
        .attr("transform", "translate(0," + innerHeight + ")");
      var yAxisG = g.append("g")
        .attr("class", "y axis");
      
      // Create a modified number formatter that uses "B" for Billion instead of "G".
      var siFormat = d3.format("s");
      var customTickFormat = function (d){
        return siFormat(d).replace("G", "B");
      };

var xScale = d3.scale.ordinal().rangeBands([0, innerWidth], barPadding);
      var yScale = d3.scale.linear().range([innerHeight, 0]);

var xAxis = d3.svg.axis().scale(xScale).orient("bottom")
        .tickSize(20)
        .outerTickSize(0); // Turn off the marks at the end of the axis.
      var yAxis = d3.svg.axis().scale(yScale).orient("left")
        .ticks(5) // Use approximately 5 ticks marks.
        .tickSize(20)
        .tickFormat(customTickFormat) // Use intelligent abbreviations, e.g. 5M for 5 Million, 5B for 5 billion.
        .outerTickSize(0); // Turn off the marks at the end of the axis.
      
      function render(data){

xScale.domain(       data.map( function (d){ return d[xColumn]; }));
        yScale.domain([0, d3.max(data, function (d){ return d[yColumn]; })]);

xAxisG.call(xAxis);
        yAxisG.call(yAxis);

function type(d){
        d.population = +d.population;
        return d;
      }

d3.csv("worldPopulation2015.csv", type, render);

</script>
  </body>
</html>

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