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Guilhem Lavaux 2021-06-21 16:38:20 +02:00
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masks/healpix/README Normal file
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To make a discrete approximation to a mask using approximate
HEALPix pixels, do
healpixrast.sh <polygon_infile> <Nside> <polygon_outfile>
where Nside is the desired HEALPix resolution.
To generate an output file in FITS format that can later be read
by the HEALPix software, do
healpixrast2fits.sh <polygon_infile> <Nside> <fits_outfile>
Polygon files of the approximate HEALPix pixels are located in
the healpix_polys directory for resolutions up to Nside=32.
Files for higher resolutions are available at
http://space.mit.edu/home/tegmark/mangle/download/data.html