The ability to create simple shapes such as rectangles, regular polygons, points, line segments, donuts, etc, would be useful when "developing" test data. Often times we know we need to generate polygons which overlap, or are separated by a minimum distance. Doing this by hand is non-optimal. Having a utility that generates vertices and indices representing various shapes with known attributes at scale could prove beneficial. We could develop simple and deterministic algorithms to generate this sort of data automatically at test time.

• Need a bunch of rectangles with an expected overlap "pattern"?
• What about some nested donuts with alternating rings?
• Points that are definitely inside/outside certain polygons?

Having utilities like these would make testing easier and more robust.