> No, it's actually the Exact same thing. Just applied independently to each of the curves in one direction. I can easily imagine situations where I would not

> No, it's actually the Exact same thing. Just applied independently to each of the curves in one direction. I can easily imagine situations where I would not be happy with that result. If that works for you, that's great. > Also, a book result is still better for me than the commercial tool links which contain no math or theory what so ever. Searching Google for "NURBS Book", "NURBS Course", "NURBS filetype:pdf" all work great for me. At a guess, most of the people who use Google are using tools, not making them. Yes, Google favors results that make the majority happy. I see that as a feature. If I'm in the minority, yes, I do need to become a more sophisticated searcher.