solid.sphere
drafting: S = solid.sphere (R)
drafting: S = solid.sphere (R, U)
A sphere.
S = solid.sphere (R) returns a solid.Shape of
radius R millimetres centred on the origin.
S = solid.sphere (R, U) centres it on the origin
of the geom.UCS U, with its poles on the normal of U.
See also: solid.Shape, solid.torus, geom.UCS
Source Code: solid.sphere