OptionalstartThe distance from the center where the spiral starts, in model units.
OptionalendThe distance from the center where the spiral ends, in model units.
OptionalnumHow many full turns the spiral makes between the two radii; fractions are allowed.
OptionalcenterThe point the spiral winds around.
OptionaldirectionThe normal of the plane the spiral lies in; the default lays it flat on the ground.
OptionalclockwiseWhen true, the spiral winds clockwise seen from the tip of the normal.
OptionaltoleranceHow far the fitted curve may stray from the exact spiral, in model units.
The size of a flat spiral for
shapes.wire.createFlatSpiralWire: the radius at each end and the number of turns between them.