https://github.com/timstaley/pyds9_ex

Extensions to the pyds9 package, providing easy scripting of the ds9 fits file viewer from python.
https://github.com/timstaley/pyds9_ex

Last synced: about 2 months ago
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Extensions to the pyds9 package, providing easy scripting of the ds9 fits file viewer from python.

• Host: GitHub
• URL: https://github.com/timstaley/pyds9_ex
• Owner: timstaley
• Created: 2012-03-14T14:58:18.000Z (almost 13 years ago)
• Default Branch: master
• Last Pushed: 2012-03-14T19:01:09.000Z (almost 13 years ago)
• Last Synced: 2023-03-22T11:11:30.285Z (almost 2 years ago)
• Language: Python
• Homepage:
• Size: 93.8 KB
• Stars: 5
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst

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README

        

pyds9_ex

======================

A lightweight wrapper class and associated functions, 

adding extended functionality and ease of use to the pyds9 package. 

---------------------------------------------------------------------

The main aims are: 

 - To provide python bindings for common actions, in order to avoid frequent use of error prone ``ds9.set(some_command_string)``, etc.

 - To make complex interactions with multiple frames more streamlined.

Prerequisites: ds9, xpa, pyds9

Note that this mini-project is very much in the alpha stage - essentially I threw it together during an afternoon, and I'm currently adding functionality as and when I need it. As such, there is not yet any packaging or testing, let alone suggestion of reliability. 

*(Note a quick and dirty method of installation is to symlink the ds9_ex folder from ~/.local/python2.7/site-packages )*

I've decided to publish the code anyway as 

 - It might attract the attention of collaborators / perhaps this sort of functionality could be integrated into the original pyds9 package.

 - It might save somebody some time by functioning as a template.

 - I'm trying to move towards a practice of 'publish everything when possible' , and this seemed like a good place to start.

I'm also quietly pleased with the ``@per_frame`` function decorator. 

This takes a function and binds in an additional wrapped version with the prefix ``all_``

that will apply the action to all frames,

so for example implementing a zoom function:

    ``foo.zoom_to(4) # zoom active frame to 4x``

trivially provides the same functionality for all frames: 

    ``foo.all_zoom_to(4) # zoom all frames to 4x``

Applying the same action to all frames is particularly useful when say, panning around filtered and original versions of an image, in tandem.

Comments and collaborators very welcome!