baseNeighbours | R Documentation |
The base-resolution comprises twelve pixels. baseNeighbours
returns
a map from the base pixel index bp to the vector of base pixels
that are neighbours of bp, in counterclockwise order of
direction: S,SE,E,NE,N,NW,W,SW. The presence of -1 indicates
that the corresponding direction is empty.
baseNeighbours(bp)
bp |
The base pixel index |
## Return neighbours of base pixel 1 baseNeighbours(1) ## There is no base pixel 14, so baseNeighbours returns NULL baseNeighbours(14)
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