ring2nest: Convert ring to nest ordering.
In rcosmo: Cosmic Microwave Background Data Analysis

ring2nest converts HEALPix pixel indices in the 'ring' ordering scheme to HEALPix pixel indices in the 'nested' ordering scheme.

1	ring2nest(nside, pix)

`nside`	is the HEALPix nside parameter (integer number 2^k)
`pix`	is a vector of HEALPix pixel indices, in the 'ring' ordering scheme.

the output is a vector of HEALPix pixel indices in the 'nested' ordering scheme.

## Convert (1,2,23) from ring to nest at nside = 8
nside <- 8
pix <-c(1,2,23)
ring2nest(nside,pix)

rcosmo documentation built on Dec. 11, 2021, 9:29 a.m.

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