Slicing a NURBS surface

Question

I have a NURBS surface which has 4 curved edges. (I have the 4 bezier points for the curves)

I'd like to slice the NURBS surface with a slicing-plane thats on-axis (not as advanced as 3DSMAX!), and calculate a curve where the slicing-plane and NURBS surface intersects.

Answer 1

Well.. The R in 'NURBS' is for rational. It's a division of two polynoms. Your (axis-aligned) plane gives you a very simple fun set of points, (x,y,z) such that z is the given z. Solve. Not very helpful perhaps. Is this more like what you had in mind?

Answer 2

Discussion continued at this SO question.