Area.makeOffset() - sliptonic/FreeCAD GitHub Wiki
makeOffset(index=-1, offset=0.0, extra_pass=0, stepover=0.0): Make an 2D offset of the shape.
-
index (-1): the index of the section. -1 means all sections. No effect on planar shape.
-
offset(0.0): Offset value, positive for expansion, negative for shrinking
-
extra_pass(0): Number of extra offset pass to generate.
-
stepover(0.0): Cutter diameter to step over on each pass. If =0, use Offset