healpy.pixelfunc.get_nside

healpy.pixelfunc.get_nside(m)

Return the nside of the given map.

Parameters :

m : sequence

the map to get the nside from.

Returns :

nside : int

the healpix nside parameter of the map (or sequence of maps)

Notes

If the input is a sequence of maps, all of them must have same size. If the input is not a valid map (not a sequence, unvalid number of pixels), a TypeError exception is raised.