# Paraview won't copy data to cell zones

**URL:** https://discourse.paraview.org/t/paraview-wont-copy-data-to-cell-zones/14662
**Category:** ParaView Support
**Tags:** openfoam
**Created:** [May 18, 2024, 1:18pm UTC](https://discourse.paraview.org/t/paraview-wont-copy-data-to-cell-zones/14662 "2024-05-18T13:18:11Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![marhatom](https://discourse.paraview.org/user_avatar/discourse.paraview.org/marhatom/32/14108_2.png) [@marhatom](https://discourse.paraview.org/u/marhatom)
#### Post date: [May 18, 2024, 1:18pm UTC](https://discourse.paraview.org/t/paraview-wont-copy-data-to-cell-zones/14662/1 "2024-05-18T13:18:11Z")

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Hello,  
There is already one similar post [cellZone not shown in paraView mesh list](https://discourse.paraview.org/t/cellzone-not-shown-in-paraview-mesh-list/11462) about this topic, but mine is a bit more specific.

My system is Windows 11 and I am also working with OpenFOAM (using WSL2) and have defined a _cellZone_. In Paraview, I am using the _.foam_ reader and when I check the option _Read zones_ I can inspect the _cellZone_ in _MultiBlock Inspector_.

![image](https://discourse.paraview.org/uploads/default/original/2X/c/cbcd9f821ab5cb49f1424d6fbcb6ffea1acd5c87.png)

 ![image](https://discourse.paraview.org/uploads/default/original/2X/3/351b200495ea85437fbc642352202e4007df42e4.png)

Everything is okay with that. But now I would also like to copy the data (from _interalMesh_) to the _cellZone_

![image](https://discourse.paraview.org/uploads/default/original/2X/d/d77f8634cb56edff93ee26c3e8c553ba59a72ec3.png)

And that seems to be not working.

 ![image](https://discourse.paraview.org/uploads/default/original/2X/b/bac8736c691d21a085cf21a26734af9c9ecd1239.png)

However if I run

```auto
foamToVTK -cellSet porousZone

```

I can then display the field just fine.

 ![image](https://discourse.paraview.org/uploads/default/original/2X/c/c11784921ccab5013f46127a0f6f522ad9219488.png)

So it would be nice if this was not necessary at all. I also noticed that Paraview on Linux (Ubuntu 22.04 using WSL2) kind of works, but it displays only the cell values and not the interpolated values.

 ![image](https://discourse.paraview.org/uploads/default/original/2X/b/b7747a3a35d890d9e5eb407b4544ce41e45689e4.png)

Data: [cellZonesData.zip](https://discourse.paraview.org/uploads/short-url/ePShjXFzs0xk8fFoOSEOcQPfNR2.zip) (1.9 MB)

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<div class="post-metadata">

### 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: [May 21, 2024, 9:44am UTC](https://discourse.paraview.org/t/paraview-wont-copy-data-to-cell-zones/14662/2 "2024-05-21T09:44:37Z")

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> [@marhatom](#):
>
> I also noticed that Paraview on Linux (Ubuntu 22.04 using WSL2) kind of works, but it displays only the cell values and not the interpolated values.

This is the expected behavior, it is copying only cell data, not point data.

I do see some strange behavior on Linux sometimes if I uncheck et recheck “ReadZones”

One would need to check on Windows though.

FYI @olesenm