Grows geometry by moving its whole boundary outward by delta, or shrinks it when delta is
negative.
A 2D shape stays a 2D shape, a path becomes a 2D band of that width around it, and a solid
grows into a bigger solid, with round corners and a positive delta only. Corners are
rounded when corners is left out.
The geometry, the distance, the corner style and the segments for round corners
The grown or shrunk geometry
Builds the outline of a 2D shape or path at distance delta from the original, outward for
positive and inward for negative.
A 2D shape gives a bigger or smaller 2D shape and a path gives a parallel path. When
corners is left out, corners are kept sharp.
The 2D shape or path, the distance, the corner style and the segments for round corners
The offset 2D shape or path
Growing and shrinking JSCAD geometry by a distance:
expandmoves every boundary outward, or inward for a negative distance, andoffsetbuilds the outline at that distance. Both work on flat 2D shapes and paths and shape their corners ascornerssays;expandalso grows solids, with round corners only.