Rebuild interface information

1.Can you see a Degree on the surface? If not, what does Degree stand for?
2.Can you see Span on the surface? If not, what does Span stand for?
3.What do these 15 points represent?
4.what is this?
5.Why are there 9 sets of arrows?

Maybe you need to read up a little on NURBS…

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Moved to Rhino for Windows category

Thank you.

Thank you very much.