how to obtain the grid number associated with the OpenMOC FSR region (3D/2D)

[钟昌明]

I hope this message finds you well. I apologize for any lack of clarity in my previous inquiry. It has come to my attention that OpenMOC currently only supports the generation of two-dimensional graphs using Python. However, my research necessitates the handling of three-dimensional data. Through the utilization of the solver.computeFSRFissionRates function and subsequent storage with np.savetxt, I have successfully acquired fission rate data. Regrettably, this data is presented solely as a column vector, necessitating the association of each value with its corresponding (x, y, z) coordinates for accurate visualization. While some members of the community can query flux values at specific coordinates, this capability falls short, particularly in cases involving three-dimensional or non-structured grids. I am thus seeking guidance on how to obtain the specific geometric topology of FSRs. Ideally, the output format would be compatible with file types such as txt. Your assistance in this matter would be greatly appreciated.

Warm regards

[Guillaume Giudicelli]

Hello

We do not actively develop 3D plotting in OpenMOC. Feel free to do so.
The topology of the FSR regions is not currently accessible in OpenMOC. We can only represent them pixel by pixel, on a grid, and finding which FSRs contain each pixel.
You can try the same approach. It will be slow-ish in 3D but still acceptable.

Best,
Guillaume

Le mer. 20 mars 2024 à 00:02, 钟昌明 <cmzho...@gmail.com> a écrit :
>
> I hope this message finds you well. I apologize for any lack of clarity in my previous inquiry. It has come to my attention that OpenMOC currently only supports the generation of two-dimensional graphs using Python. However, my research necessitates the handling of three-dimensional data. Through the utilization of the solver.computeFSRFissionRates function and subsequent storage with np.savetxt, I have successfully acquired fission rate data. Regrettably, this data is presented solely as a column vector, necessitating the association of each value with its corresponding (x, y, z) coordinates for accurate visualization. While some members of the community can query flux values at specific coordinates, this capability falls short, particularly in cases involving three-dimensional or non-structured grids. I am thus seeking guidance on how to obtain the specific geometric topology of FSRs. Ideally, the output format would be compatible with file types such as txt. Your assistance in this matter would be greatly appreciated.
>
> Warm regards
>

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