trusty (1) wcsware.1.gz

NAME

       wcsware - Extract WCS keywords for an image

SYNOPSIS

       wcsware [-a<alt>] [-f] [-h<hdu>] [-p] [-x] [<fitsfile>]

DESCRIPTION

       wcsware  extracts  the  WCS keywords for an image from the specified FITS file, constructs wcsprm structs
       for each coordinate representation found and performs a variety of operations using them.

       The  FITS  file  may  be  specified  according  to  the  syntax  understood  by  cfitsio,   for   example
       "file.fits.gz+1"  refers to the first extension of a gzip'd FITS file.  Use "-" or omit the file name for
       input from stdin.

OPTIONS

       -a<alt>
              Specify an alternate coordinate representation to be used (ignored if there is only one).

       -f     Apply wcsfix() to the header.

       -h<hdu>
              Move to HDU number (1-relative) which is expected to contain an image array.   (Useful  for  input
              from stdin.)

       -p     Print the struct(s) using wcsprt() (default operation).

       -P     Same as -p but don't print a default struct.

       -x     Convert pixel coordinates, obtained from stdin, to world coordinates using wcsp2s().

       -w     Convert world coordinates, obtained from stdin, to pixel coordinates using wcss2p().