MEALPix for the HEALPix User
Contents
MEALPix function names are derived from their HEALPix counterparts.
MEALPix functions are typically camel-cased (e.g., angDist, or nSide2nPix). Underscores in HEALPix names are dropped in the conversion to MEALPix names.
MEALPix functions accept array arguments
MEALPix functions exploit Matlab(tm)'s vectorization facilities to allow for the processing of arrays of pixels, direction vectors and position angle vectors via a single function call. For example, the MEALPix implementation of angDist accepts mixed arrays of cartesian direction vectors, angular position vectors, and ring or nest indexed pixels for either argument.
MEALPix indexes pixels from 1
HEALPix pixels are indexed from 0. In keeping with the Matlab standard MEALPix pixels are indexed from 1. MEALPix pixels are indexed from 1: i.e., MEALPix pixel number n corresponds to HEALPix pixel number n-1.
Copyright 2010-2011 Lee Samuel Finn. Terms of Use.