vianagmo <vaa### [at] unaleduco> wrote:
> 1. I want to know if there's a way to make a sor that revolves in an angle
> smaller than 2*Pi.

> 2. Is it possible to do portions of primitive shapes (spheres, cones,
> cylinders, torus) in a simple and fast way?. for example halfs or quarters
> of spheres or cones.

  For sections larger than Pi radians, create an intersection of the object
and the union of two planes at correct orientations. For sections smaller
than Pi radians, create an intersection of the object and the intersection
of two planes at correct orientations.

-- 
                                                          - Warp

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