# Support question
**URL:** https://discourse.paraview.org/t/support-question/17363
**Category:** ParaView Support
**Created:** [December 11, 2025, 7:31am UTC](https://discourse.paraview.org/t/support-question/17363 "2025-12-11T07:31:11Z")
**Posts on this page:** 13
**Page:** 1
### Author:  [@Jumpy\_Cow](https://discourse.paraview.org/u/Jumpy_Cow)
#### Post date: [December 11, 2025, 7:31am UTC](https://discourse.paraview.org/t/support-question/17363/1 "2025-12-11T07:31:11Z")
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 11, 2025, 7:35am UTC](https://discourse.paraview.org/t/support-question/17363/2 "2025-12-11T07:35:24Z")
What is your question @Jumpy_Cow ?
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### Author:  [@Jumpy\_Cow](https://discourse.paraview.org/u/Jumpy_Cow)
#### Post date: [December 11, 2025, 7:47am UTC](https://discourse.paraview.org/t/support-question/17363/3 "2025-12-11T07:47:23Z")
thanks. I intended to answer someone’s question that how to load the .q file while .xyz for plot3d format is loaded ([Plot3d format](https://discourse.paraview.org/t/plot3d-format/2511)).
However, given the oppotunity. I do face another problem that, How can I extract the pressure from the object surface, rather than the surface of entire domain? I have tried filter of extract surface but did not work perfectly.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 11, 2025, 7:58am UTC](https://discourse.paraview.org/t/support-question/17363/4 "2025-12-11T07:58:22Z")
> [@Jumpy\_Cow](#):
>
> that how to load the .q file while .xyz for plot3d format is loaded ([Plot3d format](https://discourse.paraview.org/t/plot3d-format/2511)).
Sorry about that, I will move your answer back, one sec.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 11, 2025, 7:59am UTC](https://discourse.paraview.org/t/support-question/17363/5 "2025-12-11T07:59:39Z")
> [@Jumpy\_Cow](#):
>
> How can I extract the pressure from the object surface, rather than the surface of entire domain? I have tried filter of extract surface but did not work perfectly.
Please share you data
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### Author:  [@Jumpy\_Cow](https://discourse.paraview.org/u/Jumpy_Cow)
#### Post date: [December 11, 2025, 8:06am UTC](https://discourse.paraview.org/t/support-question/17363/6 "2025-12-11T08:06:27Z")
thanks. the entire data is probably too big. It is a plot3d file generated by CFL3D, I have loaded the file to paraview, but not being sure how to show the pressure on object surface only. It is from a multi-block grid. The object is a half common research model of an aircraft.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 11, 2025, 8:09am UTC](https://discourse.paraview.org/t/support-question/17363/7 "2025-12-11T08:09:52Z")
Sorry but Im not following, whats wrong with the result of extract surface ?
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### Author:  [@Jumpy\_Cow](https://discourse.paraview.org/u/Jumpy_Cow)
#### Post date: [December 11, 2025, 8:15am UTC](https://discourse.paraview.org/t/support-question/17363/8 "2025-12-11T08:15:08Z")
I intend to hide all other parts of surface, but show only the surface of the aircraft. It is now looking from the inside of the aircraft, but the outside is wrapped in other surfaces. I would need a convenient way to hide other surfaces.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 11, 2025, 8:18am UTC](https://discourse.paraview.org/t/support-question/17363/9 "2025-12-11T08:18:55Z")
Clip filter with a Box function should work 🙂
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### Author:  [@Jumpy\_Cow](https://discourse.paraview.org/u/Jumpy_Cow)
#### Post date: [December 11, 2025, 8:44am UTC](https://discourse.paraview.org/t/support-question/17363/10 "2025-12-11T08:44:00Z")
thanks. I have tried. But my mesh is multi-block; clip filter can not deal with the inter-block surfaces. I have tried merge blocks filter but that takes forever.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 11, 2025, 8:45am UTC](https://discourse.paraview.org/t/support-question/17363/11 "2025-12-11T08:45:02Z")
Im afraid I have no idea what Im seeing here, please share your data.
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### Author:  [@Jumpy\_Cow](https://discourse.paraview.org/u/Jumpy_Cow)
#### Post date: [December 12, 2025, 5:08am UTC](https://discourse.paraview.org/t/support-question/17363/12 "2025-12-12T05:08:04Z")
Thank you!
[https://we.tl/t-bPZojyqu8W](https://we.tl/t-bPZojyqu8W)
[https://we.tl/t-IkayOXaLUZ](https://we.tl/t-IkayOXaLUZ)
Please check the two links for the data. You may need to load .xyz with plot3d loader and then load the .q file by a box in the properties as the image shown above.
I am not very sure how to visualise it properly that the multi-block interface block the vision. I have tried merge-blocks filter by did not seem to work.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 15, 2025, 8:36am UTC](https://discourse.paraview.org/t/support-question/17363/13 "2025-12-15T08:36:05Z")
transfer expired