Hello!

At school, we're developing a modelling tool that will generate shapes such
as bezier curves, parabolas, ellipses and such in povray.

In the tool we have the parametrisised functions for all the shapes, so when
it comes to the Pov-Ray script-generation, we're thinking about using the
Parametric Object.

However, our shapes are supposed to have thickness and a height as well, and
the Pov-Ray online documentation says; "The parametric object is not a solid
object it is "hollow", like a thin shell."

So then we're wondering if there is some way to make these objects have a
thickness as well.. Like one does with the isosurfaces, just subtract the
thickness from the equation or something...?

The perfect solution however, would be that something like this can be done:
http://hovedprosjekter.hig.no/v2004/data/gruppe11/param_obj.gif

A rectangle is swept along a parametrisised 3d spline to construct the solid
object.. is this possible?



best regards,
lars petter
norway

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