# Convert from polydata to unstructured grid

**URL:** https://discourse.paraview.org/t/convert-from-polydata-to-unstructured-grid/15139
**Category:** ParaView Support
**Created:** [July 28, 2024, 4:55pm UTC](https://discourse.paraview.org/t/convert-from-polydata-to-unstructured-grid/15139 "2024-07-28T16:55:38Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![mclarsen](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/m/d07c76/32.png) [@mclarsen](https://discourse.paraview.org/u/mclarsen)
#### Post date: [July 28, 2024, 4:55pm UTC](https://discourse.paraview.org/t/convert-from-polydata-to-unstructured-grid/15139/1 "2024-07-28T16:55:38Z")

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I have a multiblock that consists of both unstructured and polydata. Is there an easy way to convert all the polydata into unstructured grid datasets?

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### Author: ![Kenichiro-Yoshimi](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/k/ecc23a/32.png) [@Kenichiro-Yoshimi](https://discourse.paraview.org/u/Kenichiro-Yoshimi)
#### Post date: [July 29, 2024, 12:54am UTC](https://discourse.paraview.org/t/convert-from-polydata-to-unstructured-grid/15139/2 "2024-07-29T00:54:17Z")

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Perhaps a `Clean to Grid` filter is what you need.

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### Author: ![cory.quammen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/cory.quammen/32/11193_2.png) [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [July 29, 2024, 11:05am UTC](https://discourse.paraview.org/t/convert-from-polydata-to-unstructured-grid/15139/3 "2024-07-29T11:05:20Z")

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**Clean to Grid** will certainly produce unstructureds grid, but it builds point locators, which you don’t really need, and might merge points you didn’t want merged. I think it might be faster to use **Threshold** and just set the threshold values to keep all the data.d

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### Author: ![Kenichiro-Yoshimi](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/k/ecc23a/32.png) [@Kenichiro-Yoshimi](https://discourse.paraview.org/u/Kenichiro-Yoshimi)
#### Post date: [July 29, 2024, 11:52pm UTC](https://discourse.paraview.org/t/convert-from-polydata-to-unstructured-grid/15139/4 "2024-07-29T23:52:05Z")

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Thank you for your insightful comments. 😊

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### Author: ![mclarsen](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/m/d07c76/32.png) [@mclarsen](https://discourse.paraview.org/u/mclarsen)
#### Post date: [July 30, 2024, 1:04am UTC](https://discourse.paraview.org/t/convert-from-polydata-to-unstructured-grid/15139/5 "2024-07-30T01:04:24Z")

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Thanks Cory!

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 8, 2024, 6:57am UTC](https://discourse.paraview.org/t/convert-from-polydata-to-unstructured-grid/15139/6 "2024-08-08T06:57:36Z")

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**AppendDataset** with a single input will also do the job.