Map Pattern — Tiles a flat beam pattern over a surface and returns its beams, with no thickness yet: projected onto a Solid from a plane, a cylinder or along a sweep, laid on a CAD face, or laid on a quad mesh.
Voronoi on Surface — Traces the borders between the Voronoi cells of seed points on a mesh surface — each border runs where two seeds are equally near — as a lattice that keeps its cells.