# delete vector at boundary
**URL:** https://discourse.paraview.org/t/delete-vector-at-boundary/10687
**Category:** ParaView Support
**Created:** [November 7, 2022, 7:55pm UTC](https://discourse.paraview.org/t/delete-vector-at-boundary/10687 "2022-11-07T19:55:56Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@saman89](https://discourse.paraview.org/u/saman89)
#### Post date: [November 7, 2022, 7:55pm UTC](https://discourse.paraview.org/t/delete-vector-at-boundary/10687/1 "2022-11-07T19:55:56Z")
Hi
I Want to remove the vectors at boundaries. such as mentioned in the attached file
Is there somebody who can help me? I really appreciate any help you can provide.
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### Author:  [@Kenichiro-Yoshimi](https://discourse.paraview.org/u/Kenichiro-Yoshimi)
#### Post date: [November 8, 2022, 12:55am UTC](https://discourse.paraview.org/t/delete-vector-at-boundary/10687/2 "2022-11-08T00:55:27Z")
Hi,
If you mean that you want to remove vectors with zero velocity, you can use the `Threshold` filter to remove vectors with zero velocity. Here, the `threshold` filter targets scalar values, so if you do not have the magnitude of the velocity vector as a scalar value, you will need to create it, e.g. with a `Calculator` filter.
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### Author:  [@saman89](https://discourse.paraview.org/u/saman89)
#### Post date: [November 17, 2022, 9:36am UTC](https://discourse.paraview.org/t/delete-vector-at-boundary/10687/3 "2022-11-17T09:36:39Z")
Thanks a lot, it was the best solution.