# transfrom to VTK data

**URL:** <https://discourse.slicer.org/t/transfrom-to-vtk-data/3385>\
**Category:** Support\
**Created:** [July 5, 2018, 1:17pm UTC](https://discourse.slicer.org/t/transfrom-to-vtk-data/3385 "2018-07-05T13:17:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![1102831521](https://avatars.discourse-cdn.com/v4/letter/1/c67d28/32.png) [@1102831521](https://discourse.slicer.org/u/1102831521)\
**Post date:** [July 5, 2018, 1:17pm UTC](https://discourse.slicer.org/t/transfrom-to-vtk-data/3385/1 "2018-07-05T13:17:33Z")

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Operating system: WIN7  
Slicer version: 4.8.1  
Expected behavior: vtkMRMLNode data transfrom to VTK data  
Actual behavior:

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<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 5, 2018, 1:28pm UTC](https://discourse.slicer.org/t/transfrom-to-vtk-data/3385/2 "2018-07-05T13:28:13Z")

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Most MRML nodes store a VTK data object internally that you can retrieve with a get function (e.g., GetImageData, GetPolyData, GetTable).