# CalculiX (.frd) and pyvista

**URL:** <https://calculix.discourse.group/t/calculix-frd-and-pyvista/3816>\
**Category:** Postprocessing/Visualization\
**Created:** [March 10, 2026, 8:18pm UTC](https://calculix.discourse.group/t/calculix-frd-and-pyvista/3816 "2026-03-10T20:18:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![rafal.brzegowy](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@rafal.brzegowy](https://calculix.discourse.group/u/rafal.brzegowy)\
**Post date:** [March 10, 2026, 8:18pm UTC](https://calculix.discourse.group/t/calculix-frd-and-pyvista/3816/1 "2026-03-10T20:18:42Z")

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I am pleased to inform you that I have successfully added native support for reading **.frd** files directly into **PyVista**.

This feature is currently slated for release with **version 0.48** , which is expected to be available around **April**. This implementation will allow users to load .frd file seamlessly without requiring external conversion scripts or intermediate steps.

> <https://github.com/pyvista/pyvista/pull/8255>
>
> Test:
> 1D:
> !\[1D\](https://github.com/user-attachments/assets/3591b9a9-4fb2-463a-…b92a-611f2eef7e64)
> 
> 2D:
> \<img width="2559" height="1392" alt="2D" src="https://github.com/user-attachments/assets/666931f7-854c-46f5-a6ca-80b8768b7718" /\>
> 
> 3D C3D8:
> !\[C3D8\](https://github.com/user-attachments/assets/2d11070e-3213-4f6d-ab44-ca641cf8d181)
> 
> 3D C3D20:
> !\[C3D20\](https://github.com/user-attachments/assets/fccffec5-41c0-41d2-aae5-48f314a1c8d5)
> 
> 3D Tet10:
> \<img width="2559" height="1390" alt="image" src="https://github.com/user-attachments/assets/3f4daa17-8328-4c3a-b0e5-64d6642409b7" /\>
> 
> Closes https://github.com/pyvista/pyvista/issues/5350

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**Author:** ![Nobody-86](https://avatars.discourse-cdn.com/v4/letter/n/e495f1/32.png) [@Nobody-86](https://calculix.discourse.group/u/Nobody-86)\
**Post date:** [June 20, 2026, 1:54pm UTC](https://calculix.discourse.group/t/calculix-frd-and-pyvista/3816/2 "2026-06-20T13:54:17Z")

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Now that version 0.48 is officially available, I wanted to take a look at the native import feature. I have a question before I get started:

Is there a way to import only specific elements and their associated nodes? For example, if I have an assembly where I only want to analyze one component later, can I import that component individually into PyVista? I have an element group (ESET), but as far as I know, these aren’t saved in the FRD file.

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**Author:** ![stoli](https://avatars.discourse-cdn.com/v4/letter/s/a3d4f5/32.png) [@stoli](https://calculix.discourse.group/u/stoli)\
**Post date:** [June 20, 2026, 6:44pm UTC](https://calculix.discourse.group/t/calculix-frd-and-pyvista/3816/3 "2026-06-20T18:44:03Z")

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Did you try to limit your output by \*node file,nset=nset\_of\_your\_eset?

Best,

Stoli

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<div class="post-metadata">

**Author:** ![Nobody-86](https://avatars.discourse-cdn.com/v4/letter/n/e495f1/32.png) [@Nobody-86](https://calculix.discourse.group/u/Nobody-86)\
**Post date:** [June 22, 2026, 5:17pm UTC](https://calculix.discourse.group/t/calculix-frd-and-pyvista/3816/4 "2026-06-22T17:17:28Z")

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Hi stoli, Thanks for your hint. I didn’t know this kind of filter could be added. I just read through the manual for `*NODE FILE` again, and now I have two new questions:

- Right now, I only have the part as an element component. Is it possible to convert it down to a node component during or after solving?
- If I have an assembly and there are several individual parts that I’m interested in and would like to process them further independently, can I create a `*NODE FILE` for each part and possibly give them their own names? I haven’t found anything like that in the manual.