>Comparing bar heights with large dynamic range requires vanishingly small bars True. It is nice that the smallest parts don't have to all appear as similarly

>Comparing bar heights with large dynamic range requires vanishingly small bars True. It is nice that the smallest parts don't have to all appear as similarly tiny slivers. Comparing areas, though, is not a strength of human perception. It would be interesting to test a population of users, given a Voronoi diagram, to estimate the apparent percentage of each area. And it is instructive that in the paper they still resort to a second, zoomed-in view that breaks down the smallest subsets. You'd want to do the same no matter the representation.