[AstroPy] pyregion and astropy -- differences of pywcs and astropy.wcs

[Michael Droettboom]

It seems you're sorted, but just to answer your original question: yes 
-- world2pix is the new name for the deprecated sky2pix method.

Mike

On 10/21/2014 01:05 PM, Slavin, Jonathan wrote:
> ​This problem has been fixed in the most recent version of pyregion on 
> github, but somehow that version was not correctly copied to pypi -- 
> so my pip install of it had the old version of wcs_helper.py despite 
> the version no. indicating it was up-to-date.
>
> Jon​
>
> On Tue, Oct 21, 2014 at 1:00 PM, <astropy-request at scipy.org 
> <mailto:astropy-request at scipy.org>> wrote:
>
>     Hi,
>
>     I've run into an issue with using pyregion that seems to be related to
>     differences in the API for pywcs vs. astropy.wcs.  This may be
>     discussed
>     somewhere, but I didn't run across it.  The problem is that
>     pyregion wants
>     to invoke a wcs_sky2pix method for an astropy.wcs.wcs.WCS object.
>     Apparently pywcs.WCS objects have this method.  So I'm wondering,
>     is the
>     pywcs wcs_sky2pix method the same as the astropy.wcs method
>     wcs_world2pix?
>     If so, then the fix to pyregion is easy.
>
>     Regards,
>     Jon
>
>
>
>
>
> -- 
> ________________________________________________________
> Jonathan D. Slavin                 Harvard-Smithsonian CfA
> jslavin at cfa.harvard.edu <mailto:jslavin at cfa.harvard.edu>    60 Garden 
> Street, MS 83
> phone: (617) 496-7981       Cambridge, MA 02138-1516
> fax: (617) 496-7577            USA
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-- 
Michael Droettboom
Science Software Branch
Space Telescope Science Institute

http://www.droettboom.com

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