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idia-astro / iDaVIE

immersive Data Visualisation Interactive Explorer (iDaVIE). The specific goal of iDaVIE is to enable the interrogation of 3D data using virtual reality technology.
https://idavie.readthedocs.io/
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Synthesis Beam #83

Open thjarrett opened 4 years ago

thjarrett commented 4 years ago

We need the ability to render/view the beam that is relevant to the viewed cube. This beam may (in fact) be a function of the frequency (e.g., getting larger with lower frequency, larger wavelength). The beam may be stored in the HI cubes, although I have yet to see that. Otherwise, we should think of how to import it into our cube view. It maybe also be a simple elliptical gaussian (model), which is described with 2 parameters (sigma-x, sigma-y).

veggiesaurus commented 4 years ago

for constant beam size, the convention is to store the beam ellipse information in BMAJ, BMIN and PA headers.

For per-plane beam, the beam information is stored in a separate table HDU, so this might be a little complicated