An astronomical image viewer and toolkit.
Project description
GINGA ABOUT
Ginga is a toolkit designed for building viewers for scientific image data in Python, visualizing 2D pixel data in numpy arrays. It can view astronomical data such as contained in files based on the FITS (Flexible Image Transport System) file format. It is written and is maintained by software engineers at the Subaru Telescope, National Astronomical Observatory of Japan.
The Ginga toolkit centers around an image display object which supports zooming and panning, color and intensity mapping, a choice of several automatic cut levels algorithms and canvases for plotting scalable geometric forms. In addition to this widget, a general purpose “reference” FITS viewer is provided, based on a plugin framework. A fairly complete set of standard plugins are provided for features that we expect from a modern FITS viewer: panning and zooming windows, star catalog access, cuts, star pick/fwhm, thumbnails, etc.
COPYRIGHT AND LICENSE
Copyright (c) 2011-2015 Eric R. Jeschke. All rights reserved. Ginga is distributed under an open-source BSD licence. Please see the file LICENSE.txt in the top-level directory for details.
BUILDING AND INSTALLATION
Ginga uses a standard distutils based install, e.g.
$ python setup.py build
or
$ python setup.py install
The program can then be run using the command “ginga”
For further information please see the detailed installation instructions in the documentation.
DOCUMENTATION
It is online at http://ginga.readthedocs.org/en/latest/index.html
DEVELOPERS
See examples//example{1,2}_.py . There is more information for developers in the manual.
ON THE WEB
ETYMOLOGY
“Ginga” is the romanized spelling of the Japanese word “銀河” (hiragana: ぎんが), meaning “galaxy” (in general) and, more familiarly, the Milky Way. This viewer was written by software engineers at Subaru Telescope, National Astronomical Observatory of Japan–thus the connection.
Pronunciation
Ginga the viewer may be pronounced “ging-ga” (proper japanese) or “jing-ga” (perhaps easier for western tongues). The latter pronunciation has meaning in the Brazilian dance/martial art capoeira: a fundamental rocking or back and forth swinging motion. Pronounciation as “jin-ja” is considered poor form.
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