Zernike polynomial fitting from 3-D coordinates?

[sidgairo18]

Hi, supposing as input we have a set of 3-D points (x,y,z) that lie on a 3 dimensional surface.
How would the zernike fitting function work in this case? From the examples it is not apparent what the input should be exactly.
Would be grateful for your help.
Thank you.

[jacopoantonello]

Hi! Perhaps you should look at orthopy instead. This toolbox only support regular Zernike polynomials on a unit disk.

[sidgairo18]

Thank you for your response @jacopoantonello . Wouldn't scaling the 3-D points (x,y,z) to a unit vector make the points to lie on a unit disk?
Then can it be used with your fitting function?