The wire to offset; smooth wires work best, so fillet sharp corners first.
OptionaloffsetHow far every point moves, in model units. A positive offset moves a loop that runs
counterclockwise, seen from the tip of direction, inwards.
OptionaldirectionThe direction the offset is taken across: every point moves at right angles to both it and the wire. It must cross the wire everywhere, never running along it.
A wire, an offset and a direction for
operations.offset3DWire, which offsets a wire that does not lie in one plane across that direction.