/usr/share/perl5/Astro/FITS/Header/AST.pm is in libastro-fits-header-perl 3.07-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | package Astro::FITS::Header::AST;
=head1 NAME
Astro::FITS::Header::AST - Manipulates FITS headers from an AST object
=head1 SYNOPSIS
use Astro::FITS::Header::AST;
$header = new Astro::FITS::Header::AST( FrameSet => $wcsinfo );
$header = new Astro::FITS::Header::AST( FrameSet => $wcsinfo,
Encoding => 'FITS-IRAF' );
$header = new Astro::FITS::Header::AST( Cards => \@cards );
=head1 DESCRIPTION
This module makes use of the L<Starlink::AST|Starlink::AST> module to read
the FITS HDU from an AST FrameSet object.
It stores information about a FITS header block in an object. Takes an hash
as an argument, with an array reference pointing to an Starlink::AST
FramSet object.
=cut
# L O A D M O D U L E S --------------------------------------------------
use strict;
use vars qw/ $VERSION /;
use Astro::FITS::Header::Item;
use base qw/ Astro::FITS::Header /;
use Carp;
require Starlink::AST;
$VERSION = 3.01;
# C O N S T R U C T O R ----------------------------------------------------
=head1 REVISION
$Id$
=head1 METHODS
=over 4
=item B<configure>
Reads a FITS header from a Starlink::AST FrameSet object
$header->configure( FrameSet => $wcsinfo );
Base class initialisation also works:
$header->configure( Cards => \@cards );
Accepts a reference to an Starlink::AST FrameSet object.
If a specific encoding is required, this can be specified using
the Encoding argument. Default is FITS-WCS if no Encoding is given.
Note that not all framesets can be encoded using FITS-WCS.
$header->configure( FrameSet => $wcsinfo, Encoding => "Native" );
If Encoding is specified but undefined, the default will be decided
by AST.
=cut
sub configure {
my $self = shift;
my %args = @_;
# initialise the inherited status to OK.
my $status = 0;
return $self->SUPER::configure(%args)
if exists $args{Cards} or exists $args{Items};
# read the args hash
unless (exists $args{FrameSet}) {
croak("Arguement hash does not contain FrameSet or Cards");
}
my $wcsinfo = $args{FrameSet};
my @cards;
{
my $fchan = new Starlink::AST::FitsChan(
sink => sub { push @cards, $_[0] } );
if (exists $args{Encoding}) {
if (defined $args{Encoding}) {
# use AST default if undef is supplied
$fchan->Set( Encoding => $args{Encoding} );
}
} else {
# Historical default
$fchan->Set( Encoding => "FITS-WCS" );
}
$status = $fchan->Write( $wcsinfo );
}
return $self->SUPER::configure( Cards => \@cards );
}
# shouldn't need to do this, croak! croak!
sub writehdr {
my $self = shift;
croak("Not yet implemented");
}
# T I M E A T T H E B A R --------------------------------------------
=back
=head1 SEE ALSO
C<Starlink::AST>, C<Astro::FITS::Header>
=head1 AUTHORS
Alasdair Allan E<lt>aa@astro.ex.ac.ukE<gt>,
Tim Jenness E<lt>t.jenness@jach.hawaii.eduE<gt>
=head1 COPYRIGHT
Copyright (C) 2007-2011 Science and Technology Facilities Council.
Copyright (C) 2001-2005 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
=cut
# L A S T O R D E R S ------------------------------------------------------
1;
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