zernikeFit¶
- lsst.ts.wep.utils.zernikeFit(u: ndarray, v: ndarray, z: ndarray, jmax: int = 22, obscuration: float = 0.612, mask: Optional[ndarray] = None) ndarray¶
Fit Zernike polynomials to the surface.
- Parameters:
- Parameters
- ———-
- unp.ndarray
The x normalized pupil coordinate(s).
- vnp.ndarray
The y normalized pupil coordinate(s). Must be same shape as u.
- znp.ndarray
The wavefront surface evaluated at the u, v points.
- jmaxint
The maximum Noll index to fit (the default is 22)
- obscurationfloat, optional
The fractional obscuration. (the default is 0.612, corresponding to the Simonyi Survey Telescope.)
- masknp.ndarray, optional
A mask for the surface. The Zernikes are only fit to the unmasked points. (the default is None)