Comments (6)
Ah I think all of those things are just applying a spherical transform to the data and not actually using a spherical coordinate system
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With the comments in #67, I think this is resolved. Spherical coordinate systems arenβt supported but you can apply a spherical transform to any mesh in the methods described to achieve the same effect which is what ParaView does (to my knowledge)
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Hi @dennissergeev - apologies for the slow response!
Unfortunately, VTK/PyVista does not support spherical coordinates in the rendering scene. You'd have to convert the spherical coordinates you have to cartesian using a transform of some sort.
I have a feeling you could make a structured grid of this sphere and still have a 3D volume. I'll try to see what I can do with your example above when I have a chance
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Thanks!
AFAIK it is possible in Paraview (though API is a bit convoluted), so I guess it is technically possible in pyvista too, since they both use VTK...
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That is actually news to me! I didn't think it was possible to use spherical coordinates in ParaView (never tried, really).
Could you share some more details on this? Maybe screenshots? Or weblinks/tutorals? If I can figure out how they do it in ParaView, then we should be able to do it in PyVista.
They dont have a spherical axes grid, do they?!
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I only tried to use it in the Paraview's GUI and to be honest didn't get far, but the option is available (see the "Spherical coordinates" tick box in the screenshot below)
Perhaps this package that uses Paraview python could be helpful: https://github.com/mjucker/pv_atmos/blob/master/grids.py#L367
as well as a tutorial from the same guy: https://youtu.be/ya-xXY5uzeo?t=332
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