ZernikeAnnularEval

lsst.ts.wep.utils.ZernikeAnnularEval(z, x, y, e)

Calculate the wavefront surface in the basis of annular Zernike polynomial.

Parameters:
znumpy.ndarray

Coefficient of annular Zernike polynomials.

xnumpy.ndarray

X coordinate on pupil plane.

ynumpy.ndarray

Y coordinate on pupil plane.

efloat

Obscuration value. It is 0.61 in LSST.

Returns:
numpy.ndarray

Wavefront surface.