I have a problem with creating closed B-Rep (trimmed) Nurbs surfaces.
I wrote a plugin for Rhino with C++, which can be used to visualize trimmed (non-periodic) Nurbs surfaces, specified in a text file
, this works fine. The visualization of untrimmed closed Nurbs surfaces works as well.
Just the visualization of trimmed closed Nurbs surfaces does not work
(closing of the surface in the figure was done manually in Rhino).
What is the difference in creating a non-periodic and periodic timmed surface? Thanks for your help.