desc.basis.ZernikePolynomial.get_idx

ZernikePolynomial.get_idx(L=0, M=0, N=0, error=True)Source

Get the index of the 'modes' array corresponding to given mode numbers.

Parameters:

• L (int) – Radial mode number.

• M (int) – Poloidal mode number.

• N (int) – Toroidal mode number.

• error (bool) – Whether to raise exception if the mode is not in the basis (default), or to return an empty array.

Returns:

idx (int) – Index of given mode numbers.