# Clipping data stored in VTX that was saved in parallel

**URL:** https://discourse.paraview.org/t/clipping-data-stored-in-vtx-that-was-saved-in-parallel/16817
**Category:** ParaView Support
**Created:** [June 16, 2025, 2:22am UTC](https://discourse.paraview.org/t/clipping-data-stored-in-vtx-that-was-saved-in-parallel/16817 "2025-06-16T02:22:56Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![usiu5555](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/u/e19adc/32.png) [@usiu5555](https://discourse.paraview.org/u/usiu5555)
#### Post date: [June 16, 2025, 2:22am UTC](https://discourse.paraview.org/t/clipping-data-stored-in-vtx-that-was-saved-in-parallel/16817/1 "2025-06-16T02:22:56Z")

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Using FEM software, I have my results saved into VTX files. I have learned that VTX stores data locally per process, which then results in problems when using clipping feature in Paraview. Specifically, some cells are missing after using clip filter. Problem occurs with “crinkle clip” unchecked.

 ![Screenshot from 2025-06-13 16-56-53](https://discourse.paraview.org/uploads/default/original/3X/f/e/fe88b514da50c4eab464278d0a70eeb0aa565f2b.png)

Is there a trick that could make it work better? Is it possible that Paraview will handle such cases in the future?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 16, 2025, 6:45am UTC](https://discourse.paraview.org/t/clipping-data-stored-in-vtx-that-was-saved-in-parallel/16817/2 "2025-06-16T06:45:40Z")

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Please share your data.

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### Author: ![usiu5555](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/u/e19adc/32.png) [@usiu5555](https://discourse.paraview.org/u/usiu5555)
#### Post date: [June 16, 2025, 7:38am UTC](https://discourse.paraview.org/t/clipping-data-stored-in-vtx-that-was-saved-in-parallel/16817/3 "2025-06-16T07:38:52Z")

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Thank you for looking at the issue.

Here is the archive of the vtx .bp folder. I use ADIOS2VTXReader, then clip filter.  
[u\_vtx.bp.tar.xz](https://discourse.paraview.org/uploads/short-url/qdPuXG7YotJkWHgdvNt5XvcplIN.xz) (604.4 KB)

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<div class="post-metadata">

### Author: ![usiu5555](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/u/e19adc/32.png) [@usiu5555](https://discourse.paraview.org/u/usiu5555)
#### Post date: [June 30, 2025, 2:58am UTC](https://discourse.paraview.org/t/clipping-data-stored-in-vtx-that-was-saved-in-parallel/16817/4 "2025-06-30T02:58:17Z")

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Hello, did you have time to look into the issue?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 30, 2025, 6:38am UTC](https://discourse.paraview.org/t/clipping-data-stored-in-vtx-that-was-saved-in-parallel/16817/5 "2025-06-30T06:38:41Z")

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Sorry, my answer got lost somehow.

Your dataset contains only lagrange tetrahedron, which are sadly not correctly supported by the Clip filter.

A work around is to use the Tetrahedralize filter first.

 ![image](https://discourse.paraview.org/uploads/default/original/3X/f/1/f1f10734660614b6de8eca3f5c2ed1074171276c.png)

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<div class="post-metadata">

### Author: ![usiu5555](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/u/e19adc/32.png) [@usiu5555](https://discourse.paraview.org/u/usiu5555)
#### Post date: [July 1, 2025, 4:56am UTC](https://discourse.paraview.org/t/clipping-data-stored-in-vtx-that-was-saved-in-parallel/16817/6 "2025-07-01T04:56:32Z")

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Thank you for the update. I forgot to say that when the VTX file is saved using only one process, the problem does not occur. Anyway, Tetrahedralize seems to be working well.