Brlcad/How to mged/primitive/sph

The sph (spherical ellipsoid) /primitive/ is used for creating spheres.

Parameters
The following parameters are required:


 * vertex /x/
 * vertex /y/
 * vertex /z/
 * /radius/

Draw a sphere
in ball.s sph 0 0 0 30
 * 1) Create a sphere names ball.s of radius 30 centred at the origin