pub fn rim_chain(
part: &NamedModel,
face: FaceId,
edges: &[EdgeId],
) -> GeopResult<(CoordinateSystem, Chain)>Expand description
The chain of face’s edges edges — or, if none, its one hole — in
the plane of the face: its frame, w the face’s outward normal, and
the chain in it, the face on its left. Fails for a face that is not
planar, edges that are not one chain along one of its loops, edges that
are neither straight nor circular, and edges the solid is not convex
along.