What does cubeviz.specviz.get_spectra() do when multiple spatial/spectra Subsets exist?

[pllim]

Let's say I have 3 spatial Subsets and then 1 spectral Subset. I see on the screen as above. What should I expect when I run cubeviz.specviz.get_spectra()? Right now, I see a dictionary with these keys: contents[FLUX], Subset 1, Subset 2, Subset 3, Subset 4. Each one only returns one Spectrum1D object each.

key	type	data	spectrum expectation?
contents[FLUX]	input data	full cube	collapsed cube, no mask
Subset 1	Spatial	cube covered by spatial region	collapsed cube at spatial region, but is the spectral region mask applied?
Subset 2	Spectral	cube covered by the spectral region	collapsed cube with wavelength not covered masked out, but is this always the full cube and spatial is ignored?
Subset 3	Spatial	See Subset 1
Subset 4	Spatial	See Subset 1

Is there a way to grab the spectra that is highlighted by the green lines?

[kecnry]

Not directly from a user-friendly API, no, although that is planned for future work (#1490 🐱). To do it manually, you could get the mask from subset 2 and apply it to the fully collapsed spectrum of subset 3 (that's how the highlighting is done under-the-hood by #1528). The "mask" can be accessed either from the subset object, or by checking isnan on the fluxes of the retrieved Subset 2 (in your case above).

[pllim]

Okay, thanks for the clarification!