Shrink and Divide patch surface?

Hello !

I am trying to create a framework of a parametric surface which has been created with patch command.
However when i divide the surface it devides all the untrimmed surface. How can i divide only the trimmed surface?

Divide patch surface.gh (9.6 KB)

Thanks in advance!

You cant.

And if you want to understand why: https://www.rhino3d.com/nurbs

So there isn`t any solution in my case?

retrim the divisions with the input surfaces trim edges.

Ok thank you very much. Which command i have to use in order to trim a surface with another surface for example in grasshopper. I mean is there an equivalent command with rhino trim in grasshopper/

This could be one way…

Divide patch surface_re.gh (13.3 KB)

Thank you. However just out of curiosity is there any way to trim a surface with an extrusion in grasshopper. Cause I haven`t found a way yet.