Rebuild strange works

Hello, I do not understand operation of the Rebuild tool.
I specify any value less than 5, but as a result all the same I receive 1 (it seems 5, but as a result of 1).
How does it in general work?
Untitled.3dm (482.3 KB)


Hello - the minimum number of points for a given degree (in this case degree 4) is Degree+1, so 5 in your example.
Does that make sense with what you’re seeing?

-Pascal

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It is clear, thanks!