healpy.pixelfunc.nside2npix

healpy.pixelfunc.nside2npix(nside)

Give the number of pixels for the given nside.

Parameters:

nsideint

healpix nside parameter

Returns:

npixint

corresponding number of pixels

Examples

>>> import healpy as hp
>>> import numpy as np
>>> hp.nside2npix(8)
768

>>> np.all([hp.nside2npix(nside) == 12 * nside**2 for nside in [2**n for n in range(12)]])
True

>>> hp.nside2npix(7)
588