6 ms·I believe it's called a Sankey diagram: http://bl.ocks.org/d3noob/5028304 http://bl.ocks.org/d3noob/5028304by divideby0 10y agoI believe it's called a Sankey diagram: http://bl.ocks.org/d3noob/5028304 http://bl.ocks.org/d3noob/5028304