Documentation

A Region in 2D Space

In general, this is used as a face, and extruded along some sort of path

Under the hood, this is represented by an OpenCascade Shape

This should be of type Face, constrained to the plane \( z=0 \).

Please feel free to report a bug if you're able to construct a Shape which does not lie on this plane (without using Internal functions). Or which is not either a Face, or a composite of faces.