nSide2nPix
Convert HEALPix resolution parameter to number of pixels on sphere
Contents
Syntax
nPix = nSide2nPix(nSide)
Input Arguments
nSide sub-divisions of facet sides. May be an array.
Return Arguments
nPix size(nSide) number of pixels on sphere corresponding to nSide
Description
HEALPix divides the sphere into 12 basic facets. Each facet is further divided into nSide sub-divisions for a total of 12*nSide^2 pixels.
Example
nSide = 2.^[1:4]; nPix = nSide2nPix(nSide)
nPix = 48 192 768 3072
See also
nPix2nSide
Copyright 2010-2011 Lee Samuel Finn. Terms of Use.