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get_fits_size
This routine reads the number of pixels, the resolution parameter and the pixel ordering of a FITS file containing a HEALPix map.
Location in HEALPix directory tree:
src/C/subs/get_fits_size.c
FORMAT
long get_fits_size(char *filename, long *nside, char *ordering)
ARGUMENTS
| name&dimensionality |
kind |
in/out |
description |
|---|
| |
|
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get_fits_size |
long |
OUT |
number of pixels the FITS file |
| filename |
char |
IN |
filename of the FITS-file containing the HEALPix map. |
| ordering |
char |
OUT |
pixel ordering, either 'RING' or 'NESTED' |
| nside |
long |
OUT |
Healpix resolution parameter Nside |
EXAMPLE:
long npix, nside ;
char file[180]=''map.fits'' ;
char order[10] ;
npix= get_fits_size(file, &nside, order)
Returns in npix the number of pixel in the file 'map.fits', and read in nside or
order its resolution parameter or ordering scheme
RELATED ROUTINESThis section lists the routines related to get_fits_size
-
read_healpix_map
- subroutine to read HEALPix maps
-
write_healpix_map
- subroutine to write HEALPix maps
Eric Hivon
2010-06-18
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