NAME

       Astro::FITS::Header::GSD - Manipulate FITS headers from GSD files

SYNOPSIS

         use Astro::FITS::Header::GSD;

         $hdr = new Astro::FITS::Header::GSD( Cards => \@cards );
         $hdr = new Astro::FITS::Header::GSD( gsdobj => $gsd );
         $hdr = new Astro::FITS::Header::GSD( File => $file );

DESCRIPTION

       This module makes use of the Starlink GSD module to read from a GSD header.

       It stores information about a FITS header block in an object. Takes an hash as an argument, with either
       an array reference pointing to an array of FITS header cards, or a filename, or (alternatively) a GSD
       object.

METHODS

       configure
           Reads a header from a GSD file.

             $hdr->configure( Cards => \@cards );
             $hdr->configure( Items => \@items );
             $hdr->configure( gsdobj => $gsd );
             $hdr->configure( File => $filename );

           Accepts  a  GSD  object  or  a  filename.  If both "gsdobj" and "File" keys exist, "gsdobj" key takes
           priority.

       writehdr
           The GSD library is read-only. The writehdr method is not implemented for this sub-class.

NOTES

       This module requires the Starlink GSD module.

       GSD supports keys that are longer than the 8 characters allowed as part of the FITS  standard.  GSD  keys
       are truncated to 8 characters by this module.

SEE ALSO

       NDF,         Astro::FITS::Header,         Astro::FITS::Header::Item         Astro::FITS::Header::CFITSIO,
       Astro::FITS::Header::NDF

AUTHORS

       Tim Jenness <t.jenness@jach.hawaii.edu>, Alasdair Allan <aa@astro.ex.ac.uk>

COPYRIGHT

       Copyright (C) 2008-2011 Science &  Technology  Facilities  Council.   Copyright  (C)  2001-2002  Particle
       Physics and Astronomy Research Council.  All Rights Reserved.

       This  program  is  free  software;  you  can  redistribute it and/or modify it under the terms of the GNU
       General Public License as published by the Free Software Foundation; either version 3 of the License,  or
       (at your option) any later version.

       This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the
       implied  warranty  of  MERCHANTABILITY  or  FITNESS  FOR A PARTICULAR PURPOSE. See the GNU General Public
       License for more details.

       You should have received a copy of the GNU General Public License along with this program; if not,  write
       to the Free Software Foundation, Inc., 59 Temple Place,Suite 330, Boston, MA  02111-1307, USA

perl v5.36.0                                       2023-04-21                      Astro::FITS::Header::GSD(3pm)