healpix_geo.nested.siblings#
- healpix_geo.nested.siblings(ipix, depth, num_threads=0)#
Find the siblings for every cell
- Parameters:
ipix (
numpy.ndarray) – The HEALPix cell indexes given as a np.uint64 numpy array.depth (
int) – The depth of the HEALPix cells.
- Returns:
cells (
numpy.ndarray) – A \(N\) x \(4\) or \(N\) x \(12\) np.uint64 numpy array containing the siblings of the given cells. If depth == 0, the siblings are the base cells.