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https://github.com/starlink/perl-starlink-ast
Perl interface to Starlink AST library
https://github.com/starlink/perl-starlink-ast
Last synced: 3 days ago
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Perl interface to Starlink AST library
- Host: GitHub
- URL: https://github.com/starlink/perl-starlink-ast
- Owner: Starlink
- Created: 2012-07-24T18:04:40.000Z (over 12 years ago)
- Default Branch: master
- Last Pushed: 2023-04-18T19:54:40.000Z (over 1 year ago)
- Last Synced: 2023-04-21T08:51:00.678Z (over 1 year ago)
- Language: Perl
- Size: 6.05 MB
- Stars: 1
- Watchers: 4
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README
- Changelog: Changes
Awesome Lists containing this project
README
Starlink::AST - Perl interface to Starlink's AST library
========================================================
This module provides a Perl interface to Starlink's AST library
and 3 pluggable graphics backends that can be used in conjunction
with the AST library.
The AST library provides:
- generic approach to attaching coordinate frames to data sets
+ if you have an array representing a spectrum in wavelength
and another array that represents frequency, AST can resample
one array to the other coordinate frame and allow you to add them
together. This will work for any coordinate system so long as
AST understands how to form the mapping. (many mappings
are provided by default).
- A generic plotting interface whereby you can
+ Have pluggable backends for the plotting system (currently
PGPLOT, PLplot and Tk (or Tk::Zinc) canvas)
+ The ability to draw annotations, great circles and marks
in a coordinate frame most useful to you (eg sky coordinate,
a wavelength) and have AST map that directly to the underlying
graphics coordinate system.
REQUIREMENTS
------------
The module comes with the source code so no external libraries are
required. For more information on AST see:
http://www.starlink.ac.uk/ast
INSTALLATION
------------
% perl Build.PL
% ./Build
% ./Build test
% ./Build install
NOTES
-----
The Tk canvas interface does work with limitations.
This is an early proof of concept release (although 95% of AST
is supported and the PGPLOT and PLplot interfaces do work).
AUTHOR
------
Tim Jenness with some help from Alasdair Allan
(especially the PGPLOT and Tk plotting backends) and Brad Cavanagh.
Copyright (C) 2004-2012,2014 Tim Jenness. 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