healpix_convolution.neighbours

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healpix_convolution.neighbours#

healpix_convolution.neighbours(cell_ids, *, grid_info, ring=1)#

determine the neighbours within the nth ring around the center pixel

Parameters:

  • cell_ids (array-like) – The cell ids of which to find the neighbours.

  • grid_info (xdggs.HealpixInfo) – The grid parameters.

  • ring (int, default: 1) – The number of the ring. ring=0 returns just the cell id, ring=1 returns the 8 (or 7) immediate neighbours, ring=2 returns the 8 (or 7) immediate neighbours plus their immediate neighbours (a total of 24 cells), and so on.

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