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replacing periodic NURBS curves and surfaces inside a shape

Mauro Mariotti's picture

How can I remove all periodicities inside a shape?

I suppose I have to do this:

for every face inside it {
get the surface;
if it is BSspline or Bezier AND periodic {
call SetU/VNotPeriodic;

The same for 3d and 2d (on surface) curves inside edges.

1) Can I directly modify the surface and curves inside shapes?
Otherwise, how can I replace them with a new surface/curve (which has the same domain, parametrization and 3d "image" as the old one)?
2) Bezier entities can be periodic, but have no method to make them non-periodic.

Thanks everybody.