# Obtaining a vtkPolyData after running vtkWarpScalar

**URL:** https://discourse.vtk.org/t/obtaining-a-vtkpolydata-after-running-vtkwarpscalar/9565
**Category:** Support
**Tags:** python
**Created:** [October 11, 2022, 10:32am UTC](https://discourse.vtk.org/t/obtaining-a-vtkpolydata-after-running-vtkwarpscalar/9565 "2022-10-11T10:32:18Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![llobera](https://discourse.vtk.org/user_avatar/discourse.vtk.org/llobera/32/5540_2.png) [@llobera](https://discourse.vtk.org/u/llobera)
#### Post date: [October 11, 2022, 10:32am UTC](https://discourse.vtk.org/t/obtaining-a-vtkpolydata-after-running-vtkwarpscalar/9565/1 "2022-10-11T10:32:18Z")

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I used a vtkWarpScalar filter to obtain the elevations from a triangulated surface. Now, I need to be able to access (or convert?) the mesh generated Into a vtkPolyData. Does anyone know how to do this?

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<div class="post-metadata">

### Author: ![llobera](https://discourse.vtk.org/user_avatar/discourse.vtk.org/llobera/32/5540_2.png) [@llobera](https://discourse.vtk.org/u/llobera)
#### Post date: [October 11, 2022, 11:01am UTC](https://discourse.vtk.org/t/obtaining-a-vtkpolydata-after-running-vtkwarpscalar/9565/2 "2022-10-11T11:01:57Z")

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vtkWarpScalar() inherits from vtkPointSetAlgorithm() that has a function called GetPolyDataOutput()