# Plot a single vector on top of a 3d mesh

**URL:** https://discourse.paraview.org/t/plot-a-single-vector-on-top-of-a-3d-mesh/9915
**Category:** ParaView Support
**Created:** [June 27, 2022, 8:20am UTC](https://discourse.paraview.org/t/plot-a-single-vector-on-top-of-a-3d-mesh/9915 "2022-06-27T08:20:17Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![Lorenzo11](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/l/e56c9b/32.png) [@Lorenzo11](https://discourse.paraview.org/u/Lorenzo11)
#### Post date: [June 27, 2022, 8:20am UTC](https://discourse.paraview.org/t/plot-a-single-vector-on-top-of-a-3d-mesh/9915/1 "2022-06-27T08:20:17Z")

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Hello everybody,  
I need to plot a vector knowing the application point and the 3 components of the vector, what can I do?  
Thanks in advance

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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: [June 27, 2022, 8:39am UTC](https://discourse.paraview.org/t/plot-a-single-vector-on-top-of-a-3d-mesh/9915/2 "2022-06-27T08:39:43Z")

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Arrow source ?  
Glyph filter ?

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### Author: ![Lorenzo11](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/l/e56c9b/32.png) [@Lorenzo11](https://discourse.paraview.org/u/Lorenzo11)
#### Post date: [June 27, 2022, 8:51am UTC](https://discourse.paraview.org/t/plot-a-single-vector-on-top-of-a-3d-mesh/9915/3 "2022-06-27T08:51:56Z")

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How could I do with Glyph filter? If I apply the filter it only generates many arrows among which I would not know how to select the one that starts from the point of my interest and then I would not know how to indicate the values of the components

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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: [June 27, 2022, 8:54am UTC](https://discourse.paraview.org/t/plot-a-single-vector-on-top-of-a-3d-mesh/9915/4 "2022-06-27T08:54:29Z")

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“PointSource + Calculator + Glyph” should do the trick.

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<div class="post-metadata">

### Author: ![Lorenzo11](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/l/e56c9b/32.png) [@Lorenzo11](https://discourse.paraview.org/u/Lorenzo11)
#### Post date: [June 27, 2022, 2:18pm UTC](https://discourse.paraview.org/t/plot-a-single-vector-on-top-of-a-3d-mesh/9915/6 "2022-06-27T14:18:08Z")

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With point source I can represent the vector (even if I struggle to see it in the mesh), I didn’t understand then how to use Calculator and Glyph

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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: [June 27, 2022, 3:34pm UTC](https://discourse.paraview.org/t/plot-a-single-vector-on-top-of-a-3d-mesh/9915/7 "2022-06-27T15:34:50Z")

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- Position your point with point source, Apply
- Add a Calculator, set the vector value using `x*iHat + y*jHat + z*kHat` expression, Apply
- Add a Glyph filter to show your data as an arrow