# Plotting vector field on dense mesh

**URL:** <https://community.freefem.org/t/plotting-vector-field-on-dense-mesh/3832>\
**Category:** General Discussion\
**Created:** [April 2, 2025, 4:00pm UTC](https://community.freefem.org/t/plotting-vector-field-on-dense-mesh/3832 "2025-04-02T16:00:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![le-tn](https://avatars.discourse-cdn.com/v4/letter/l/ac91a4/32.png) [@le-tn](https://community.freefem.org/u/le-tn)\
**Post date:** [April 2, 2025, 4:00pm UTC](https://community.freefem.org/t/plotting-vector-field-on-dense-mesh/3832/1 "2025-04-02T16:00:36Z")

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Hello everyone,  
I would like to plot a sparse fraction of the displacements obtained from a dense mesh, so that things can be visualized clearly. How can I proceed?  
With thanks, tn.

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**Author:** ![frederichecht](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/frederichecht/32/15_2.png) [@frederichecht](https://community.freefem.org/u/frederichecht)\
**Post date:** [April 3, 2025, 1:38pm UTC](https://community.freefem.org/t/plotting-vector-field-on-dense-mesh/3832/2 "2025-04-03T13:38:58Z")

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first it is in 2d or in 3d,

In 3d , you have to ue preview and I think you will see nothing (to hard of see in 3d) for me.  
in 2d, you can plot vector ffield , dans if the mesh is to fine you can build a coarse mesh  
and interpolate of the mesh. like in:

[vector.edp](https://community.freefem.org/uploads/short-url/qiTjuBJ2ypcSlo3YuwneQ0Wi4gh.edp) (194 Bytes)