# Regain volumetric meshes after surface extraction

**URL:** https://discourse.paraview.org/t/regain-volumetric-meshes-after-surface-extraction/12912
**Category:** ParaView Support
**Created:** [September 22, 2023, 4:34pm UTC](https://discourse.paraview.org/t/regain-volumetric-meshes-after-surface-extraction/12912 "2023-09-22T16:34:18Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![orejournal](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/o/90ced4/32.png) [@orejournal](https://discourse.paraview.org/u/orejournal)
#### Post date: [September 22, 2023, 4:34pm UTC](https://discourse.paraview.org/t/regain-volumetric-meshes-after-surface-extraction/12912/1 "2023-09-22T16:34:19Z")

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Hi all,

To meet the import requirement of an external algorithm, I need to prepare a volumetric mesh in vtk format with different labelled parts of the model surface. By far, my workflow in Paraview V5.11.0 is:

1. Extract several selections after extracting the model surface
2. Use the Calculator filter to label each segmentation
3. Merge all segmentations, this results in a surface mesh containing data arrays

Then I want to regain the volumetric mesh but with such data arrays showing different labels of the surface, have no idea if this can be achieved in Paraview.

Thanks in advance for your help!