# How can I extract cell IDs during point dataset interpolation process?

**URL:** https://discourse.paraview.org/t/how-can-i-extract-cell-ids-during-point-dataset-interpolation-process/8175
**Category:** ParaView Support
**Tags:** python
**Created:** [October 13, 2021, 3:04am UTC](https://discourse.paraview.org/t/how-can-i-extract-cell-ids-during-point-dataset-interpolation-process/8175 "2021-10-13T03:04:48Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![mkkim87](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/m/a9a28c/32.png) [@mkkim87](https://discourse.paraview.org/u/mkkim87)
#### Post date: [October 13, 2021, 3:04am UTC](https://discourse.paraview.org/t/how-can-i-extract-cell-ids-during-point-dataset-interpolation-process/8175/1 "2021-10-13T03:04:48Z")

</div>

Hello,

I use filter to interpolate scalar field data from a 3D field (VTK file) into a 2D plane grid (STL file).

In this case, I think probably small amount of cells (or points) of a 3D field may be used for the interpolation process.  
(only cells near 2D plane may be involved for the process.)

Then, can I get this specific cell IDs?

I’m trying to find methods in paraview.simple such as pointDatasetInterpolator1.GetDataInformation().GetCellDataInformation() …  
But, it is hard to do it.

Can I get some ideas?

Thanks in advance.