block by NPashaP 8cba93fe7920b5e41a949383edc11bea

Viz - Bar - waterfall

Full Screen

index.html

<!DOCTYPE html>
  <head>
    <meta charset="utf-8">
  </head>
<style>
</style>
<body>
<svg width="960" height="500">
<g transform="translate(50,50)" id="bars"></g>
</svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="//vizjs.org/viz.v1.3.0.min.js"></script>
<script>
var n = 31;

var bar = viz.bar().data(Data())
	.value0(function(d){ return d.start <= d.end ? d.start : d.end;})
	.value1(function(d){ return d.start >= d.end ? d.start : d.end;})


d3.select("#bars")
	.append("g")
	.attr("transform","translate(0,"+bar.valueScale()(0)+")")
	.call(d3.axisBottom().scale(bar.keyScale()).tickFormat(tikFormat));

d3.select("#bars").call(bar);

d3.select("#bars").select(".viz-bar")
	.selectAll(".bar")
	.style("fill",function(d,i){ return i==n ? "blue" : d.data.start <= d.data.end ? "green" : "red";})

function Data(){
  var sigma = 0;
  
  var r = d3.range(n).map(function(d){
    return {key: d, start:sigma, end:(sigma+=Math.random() < 0.6 ? Math.random() : - Math.random())};
  });
  
  r.push({key: n, start:sigma, end:0 });
  
  return r;
}

function tikFormat(d){
  return d < n ? d : "Total";
}
</script>