baseNeighbours: Return neighbours of base pixels

Description Usage Arguments Examples

Description

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.

Usage

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Arguments

bp

The base pixel index

Examples

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## Return neighbours of base pixel 1
baseNeighbours(1)

## There is no base pixel 14, so baseNeighbours returns NULL
baseNeighbours(14)

frycast/rcosmo documentation built on June 4, 2019, 5:13 p.m.