Match two surfaces properties

Hi all. I have two surfaces, just pipe like surfaces that need to have the same knot vectors in both directions, and the same number of control points in both directions. I have had some trouble using the rebuild component and was wondering if there was a way around this. The outer surface has more control points in the v direction than the inner surface. (19.6 KB)

I just wonder why you use network surface here rather than something like loft or pipe?

Hi Michael. I use network surface because I end up using Isotrim to create patches around the tube, so I specify subdomains using the u-direction.