[AstroPy] Creating a WCS from a list of (x, y, ra, dec)

Wolfgang Kerzendorf wkerzendorf at gmail.com
Wed Apr 20 07:45:38 EDT 2016


So this is a Pseudo code that shows what I mean. It simple fiddles with the
parameter until a minimum is reached.

https://gist.github.com/wkerzendorf/eddf21e9ba1202a5e903a3ccd9a0268a

Cheers,
    Wolfgang

On Wed, Apr 20, 2016 at 1:25 PM Thomas Robitaille <
thomas.robitaille at gmail.com> wrote:

> Hi Wolfgang,
>
> Just out of curiosity, can you provide an example of how to do this in
> practice?
>
> Thanks,
> Tom
>
>
>
> On 20 April 2016 at 10:38, Wolfgang Kerzendorf <wkerzendorf at gmail.com>
> wrote:
> >  You can just use the current WCS implementation and use one of the scipy
> > fitters to tweak the parameters.
> >
> > Cheers,
> >     Wolfgang
> >
> > On Wed, 20 Apr 2016 at 11:17, Stuart Mumford <stuart at cadair.com> wrote:
> >>
> >> Hello,
> >>
> >> I believe this will do what you wish, but it appears not to be finished:
> >> https://github.com/spacetelescope/gwcs/pull/42
> >>
> >>
> >> Stuart
> >>
> >> _______________________________________________
> >> AstroPy mailing list
> >> AstroPy at scipy.org
> >> https://mail.scipy.org/mailman/listinfo/astropy
> >
> > --
> > Dr. Wolfgang E Kerzendorf
> > ESO Fellow
> > European Southern Observatory
> > Karl-Schwarzschild Str. 2, 85748
> > Garching bei Muenchen, Germany
> >
> > _______________________________________________
> > AstroPy mailing list
> > AstroPy at scipy.org
> > https://mail.scipy.org/mailman/listinfo/astropy
> >
> _______________________________________________
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-- 
Dr. Wolfgang E Kerzendorf
ESO Fellow
European Southern Observatory
Karl-Schwarzschild Str. 2, 85748
Garching bei Muenchen, Germany
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