# StreamTracer

**URL:** https://discourse.paraview.org/t/streamtracer/6206
**Category:** ParaView Support
**Created:** [January 12, 2021, 3:42am UTC](https://discourse.paraview.org/t/streamtracer/6206 "2021-01-12T03:42:27Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![ccarranza](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/c/ecae2f/32.png) [@ccarranza](https://discourse.paraview.org/u/ccarranza)
#### Post date: [January 12, 2021, 3:42am UTC](https://discourse.paraview.org/t/streamtracer/6206/1 "2021-01-12T03:42:27Z")

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Is it possible to use StreamTracer with vtu extension? I am using Quad for Cell type.

Thank you for your time,  
Celso

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### Author: ![nicolas.vuaille](https://discourse.paraview.org/user_avatar/discourse.paraview.org/nicolas.vuaille/32/5873_2.png) [@nicolas.vuaille](https://discourse.paraview.org/u/nicolas.vuaille)
#### Post date: [January 12, 2021, 10:31am UTC](https://discourse.paraview.org/t/streamtracer/6206/2 "2021-01-12T10:31:50Z")

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It is possible. Did you try ? Any error encountered ?

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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: [January 12, 2021, 10:32am UTC](https://discourse.paraview.org/t/streamtracer/6206/3 "2021-01-12T10:32:30Z")

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It is definitely possible.

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### Author: ![ccarranza](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/c/ecae2f/32.png) [@ccarranza](https://discourse.paraview.org/u/ccarranza)
#### Post date: [January 12, 2021, 2:16pm UTC](https://discourse.paraview.org/t/streamtracer/6206/4 "2021-01-12T14:16:58Z")

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When I open my model, I do not have access to that particular filter. I have attached my file if this helps. Thank you both for a quick reply. [ou.vtu](https://discourse.paraview.org/uploads/short-url/hrrGFKmVUFEGhxwrvGoaWbU8PK9.vtu) (677.1 KB)

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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: [January 12, 2021, 2:21pm UTC](https://discourse.paraview.org/t/streamtracer/6206/5 "2021-01-12T14:21:06Z")

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Your dataset contains only scalars, not vectors, that is why you can’t use the streamtracer.

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### Author: ![ccarranza](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/c/ecae2f/32.png) [@ccarranza](https://discourse.paraview.org/u/ccarranza)
#### Post date: [January 12, 2021, 2:26pm UTC](https://discourse.paraview.org/t/streamtracer/6206/6 "2021-01-12T14:26:25Z")

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That’s it. I grouped them together to make a vector, and it worked… Thank you for the help.