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radio-astro-tools / pvextractor

Position-Velocity diagram extract (but it can slice out other things too)
BSD 3-Clause "New" or "Revised" License
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Add pv plotting diagrams #101

Closed keflavich closed 2 years ago

keflavich commented 2 years ago

We don't have any documentation on how to show PV diagram figures.

Super short version is:

   pvfits = fits.open('extracted_pv.fits')
   ww = wcs.WCS(pvfits[0].header)
   ax = pl.subplot(111, projection=ww)

but there's a lot of subtlety in how to make it look good and change units etc.

keflavich commented 2 years ago

https://docs.astropy.org/en/stable/visualization/wcsaxes/controlling_axes.html is part of the answer, https://github.com/radio-astro-tools/tutorials/blob/6810376c0353f0bdf3be2b9b7231c388e886adba/PVDiagramPlotting.ipynb is another part

keflavich commented 2 years ago

also https://docs.astropy.org/en/stable/visualization/wcsaxes/slicing_datacubes.html

keflavich commented 2 years ago

closed by #102