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WCS should accept / return coordinates objects #812
Description
It might be nice to build in support so that conversions from world coordinates accept any Astropy coordinates object and conversions to world coordinates return a coordinates object as well (once Angle and other coordinate object accept arrays) . For example:
>>> worldcoords = coord.ICRSCoordinates([[151.1241, 11.134], [12.4123, -41.1231]], unit=(u.deg, u.deg))
>>> wcs.wcs_world2pix(worldcoords)
...
I also hate the function names in wcs but I'm not sure there's anything we can do about that..
Activity
mdboom commentedon Feb 25, 2013
I agree -- this would be nice, and shouldn't be too difficult. As for the naming, I've opened #815 for that.
bsipocz commentedon Jun 27, 2017
Isn't this solved now by #2885?
cc: @adrn @astrofrog
adrn commentedon Jun 27, 2017
I haven't been following...
bsipocz commentedon Mar 18, 2019
I very much still feel that
wcs.utils.skycoord_to_pixel(coord, wcs)andwcs.utils.pixel_to_skycoord(x, y, wcs)do implement this feature, so suggest to close the issue.astrofrog commentedon Mar 21, 2019
Yes but more importantly it's now implemented in the APE 14 WCS API!
http://docs.astropy.org/en/stable/wcs/wcsapi.html