Twenty five years ago Sankey diagram were drawn by hand, like this one… Depicted are energy flows in the city of Dresden. No colors, just black-and-white with hatching. neat architect’s lettering.

Found this on a website of Bauhaus University in Weimar titled “Interactive Sankey Diagrams – a planning and information tool”. Authors are Hanfler, Fröhlich, Riehmann.

Comments are closed.