Currently, when a single sweep has been performed, each rectangle on the waterfall is very tall. Instead, in this case each rectangle should be a small square so that the waterfall as a whole is a horizontal rectangle. Then it should grow in height as more sweeps are performed.
tomjon
commented
7 years ago 
Currently, when a single sweep has been performed, each rectangle on the waterfall is very tall. Instead, in this case each rectangle should be a small square so that the waterfall as a whole is a horizontal rectangle. Then it should grow in height as more sweeps are performed.