Spline in a confined region

Hi everybody,
I'm trying to do a closed cubic spline passing from 5 different points, that are inside a circle. Anyway, I want that this spline remains inside the first and second quadrant (if you imagine a cartesian plane, with x and y axis passing from the origin of the circle).
How can I do this?
Thank you very much!

3 Comments

Attach your knot (training) points. In the meantime, see my attached spline demos.
OK, but you forgot the attachment.

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Asked:

on 27 Nov 2020

Commented:

on 28 Nov 2020

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