# Convert UnstructuredGrid data to PolyData and then to ImageData

**URL:** https://discourse.vtk.org/t/convert-unstructuredgrid-data-to-polydata-and-then-to-imagedata/10974
**Category:** Support
**Tags:** code
**Created:** [March 15, 2023, 8:57am UTC](https://discourse.vtk.org/t/convert-unstructuredgrid-data-to-polydata-and-then-to-imagedata/10974 "2023-03-15T08:57:54Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![liuyankui1998](https://discourse.vtk.org/user_avatar/discourse.vtk.org/liuyankui1998/32/6725_2.png) [@liuyankui1998](https://discourse.vtk.org/u/liuyankui1998)
#### Post date: [March 15, 2023, 8:57am UTC](https://discourse.vtk.org/t/convert-unstructuredgrid-data-to-polydata-and-then-to-imagedata/10974/1 "2023-03-15T08:57:54Z")

</div>

here is my main function:

 ![图片](https://discourse.vtk.org/uploads/default/original/2X/4/4f8d313356d6fc1abc85b359485e6a0e518f63a8.png)  
here is my PolyDataToImageData function:  
 ![图片](https://discourse.vtk.org/uploads/default/original/2X/c/c0b622e623d3de1c27ab1b693a10a925cb4af8ad.png)  
 ![图片](https://discourse.vtk.org/uploads/default/original/2X/8/88ca518559542fb97ddb692aa225411b34590841.png)  
An error occurred at the terminal：  
 ![图片](https://discourse.vtk.org/uploads/default/original/2X/f/f75cb2f5f56352f756cbb69b99690c4da45be792.png)  
I hope someone can help me！