Astro::FITS::HdrTrans module
----------------------------

What is it?
-----------
Astro::FITS::HdrTrans and associated sub-classes are tools for translating
instrument-specific FITS headers into generically named headers.

Requirements
------------
The Astro::FITS::HdrTrans module has minimal requirements on other
modules; only Carp and Time::Piece are required. Instrument-specific
sub-classes of Astro::FITS::HdrTrans may require other modules to be
installed, depending on the transformations those sub-classes make.
As an example, the translation sub-class for IRIS2 (an imaging
spectrometer used at the Anglo-Australian Telescope) requires
Math::Trig in order to do zenith distance to airmass translations.

Adding Subclasses
-----------------
Adding subclasses to do translations for other instruments should
be fairly straight-forward. Detailed documentation can be found
in the Astro::FITS::HdrTrans::Base class.

Where can I get it?
-------------------
The package is available from CPAN <http://www.cpan.org/>.

Installation
------------
Installation is automated using the Module::Build library

    % perl Build.PL
    % ./Build
    % ./Build test
    % ./Build install

Authors
-------

The module was written by Brad Cavanagh <b.cavanagh@jach.hawaii.edu> and
Tim Jenness <t.jenness@jach.hawaii.edu> of the Joint Astronomy Centre
(JAC) in Hawaii, and Malcolm J. Currie <mjc@star.rl.ac.uk> of the Rutherford
Appleton Laboratory (RAL) and the JAC.

Copyright (C) 2016 East Asian Observatory.
Copyright (C) 2007-2013 Science and Technology Facilities Council.
Copyright (C) 2003-2007 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 2 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

Maintainer
----------
The package is currently maintained by Tim Jenness <tjenness@cpan.org>.
Please use CPAN RT for bug reports and github pull requests for patches.
The source code repository is at

  git://github.com/Starlink/perl-Astro-FITS-HdrTrans.git