Ginga Documentation

ginga Documentation

Release 2.6.3 Eric Jeschke

Apr 21, 2017

I About Ginga

II Copyright and License

III Requirements and Supported Platforms

IV Getting the source

V Building and Installation

1 Detailed Installation Instructions for Ginga

VI Documentation

2 What's New in Ginga? 3 Ginga Quick Reference 4 The Ginga FAQ 5 The Ginga Viewer and Toolkit Manual 6 Optimizing Ginga's Performance 7 Reference/API

Contents

1 5 9 13 17

21

27

29 35 43 47 137 139

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VII Bug reports

201

VIII Developer Info

205

IX Etymology

209

X Pronunciation

213

Python Module Index

217

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Part I

About Ginga

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ginga Documentation, Release 2.6.3 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 class 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.

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ginga Documentation, Release 2.6.3 4

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