# Help with Rotational Extrusion

**URL:** https://discourse.paraview.org/t/help-with-rotational-extrusion/4840
**Category:** ParaView Support
**Created:** [July 14, 2020, 6:13pm UTC](https://discourse.paraview.org/t/help-with-rotational-extrusion/4840 "2020-07-14T18:13:13Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![jmisedam](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/j/b487fb/32.png) [@jmisedam](https://discourse.paraview.org/u/jmisedam)
#### Post date: [July 20, 2022, 8:28pm UTC](https://discourse.paraview.org/t/help-with-rotational-extrusion/4840/6 "2022-07-20T20:28:28Z")

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Also, if you want to preserve the connectivity of the original mesh and save some time, there’s a VTK filter called vtkVolumeOfRevolutionFilter which can rotate 2d polygonal data around an arbitrary axis to create 3d volumetric output. There isn’t a Paraview interface for it, so I wrote a small XML-only plugin for it:

[VolumeOfRevolution.xml](https://discourse.paraview.org/uploads/short-url/44qpxdU1NSTMX9exBj0SMOpVtxt.xml) (1.9 KB)

Since the filter is already in VTK, this XML file can be loaded using the plugin manager to allow rotation of 2d axisymmetric data into a 3D volume mesh with variable resolution around an arbitrary axis; it’s almost an identical interface to the Rotational Extrusion filter, but actually makes volumes. Hope this helps!!

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