[AstroPy] Support for OIFITS, reconstructed images

Thomas Robitaille thomas.robitaille@gmail....
Thu Apr 4 09:08:01 CDT 2013


I am not familiar with the OIFITS standard, but if the contents can
basically be represented by a sub-class of a Table or NDData object,
you could develop that sub-class, then add a reader/writer for that
sub-class using the existing I/O infrastructure:

http://docs.astropy.org/en/v0.2.1/io/registry.html

Then you could do e.g.

f = OIFITS.read('some_oifits_file.fits')

Cheers,
Tom


On 4 April 2013 15:58, Brian Kloppenborg <bkloppenborg@gmail.com> wrote:
> Hi Perry,
>
> On 04/04/2013 01:59 PM, Perry Greenfield wrote:
>> Before that can be answered well, it needs to be outlined what such
>> support of this convention entails (to be clear, it's not an IAU
>> standard, but only a registered convention as far I see from the link
>> you provided).
> Indeed, although developed under the auspice of IAU working group 54 it
> is just a registered FITS convention:
> http://fits.gsfc.nasa.gov/registry/oifits.html
>> Presumably the astropy.io.fits can read these files already, so I'm
>> guessing you want a more convenient object returned than the usual
>> FITS structures (there isn't any new kind of extension, is there?). If
>> that's the case, the people who use these objects should be the ones
>> to design them. Are you asking us to implement this, or are you asking
>> how to add your code to astropy? (You can infer that I'd prefer the
>> latter; most of the existing contributors have higher priorities for
>> development.).
> Indeed, astropy.io.fits can read and write these files already, I would
> like to see a more convenient interface to OIFITS files merged into the
> AstroPy library. This is something that I would do, rather than asking
> other developers. The process by which this is done (which you explain
> below) is what I was after.
>
>> I'd say that coming up with working code in Python that does this is
>> the first step, and to make that code compatible with the astropy
>> guidelines for coding style, dependencies, tests, and documentation.
>> Eventually this would result in a pull request to have it merged into
>> the astropy core if it seemed to have good support in the relevant
>> community. If you have questions about the best way to do the
>> implementation, I think the astropy-dev mailing list is a good place
>> to start.
> Thanks. I'll check out these documents and get coding. I'll take the
> SWIG/Clang question to them as well.
>
> Cheers,
> Brian
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