[AstroPy] astropy vs. casa coordinate transformations?

[Erik Tollerud]

There's a *place* for this in the form of this repo:
https://github.com/astropy/coordinates-benchmark

Although it doesn't have any of the CASA coordinate systems. It looks like
all of the CASA coordinate systems are already in Astropy. (assuming
https://casa.nrao.edu/docs/cookbook/casa_cookbook014.html#sec587 is the
complete list?) So you can probably do a complete comparison.  The one
catch is that the CASA systems don't quite map completely onto the concept
astropy has for a coordinate "Frame" (
http://docs.astropy.org/en/stable/coordinates/definitions.html).  But it
looks to me like all of the things CASA lists have a direct analog...?


---
Erik T

On Mon, Nov 7, 2016 at 5:21 PM, Peter Teuben <teuben at astro.umd.edu> wrote:

>
> The astropy coordinate transformations look very nice, but CASA also has a
> very impressive collection of these. Has anybody done a detailed comparison
> on how well they compare, as I was about to embark on a spot check.
>
>
> - peter
>
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