# Density of edge increse or decrease after meshing

**URL:** <https://prepomax.discourse.group/t/density-of-edge-increse-or-decrease-after-meshing/1951>\
**Category:** Feature Requests\
**Created:** [August 16, 2024, 12:37pm UTC](https://prepomax.discourse.group/t/density-of-edge-increse-or-decrease-after-meshing/1951 "2024-08-16T12:37:07Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![krishna](https://avatars.discourse-cdn.com/v4/letter/k/71c47a/32.png) [@krishna](https://prepomax.discourse.group/u/krishna)\
**Post date:** [August 16, 2024, 12:37pm UTC](https://prepomax.discourse.group/t/density-of-edge-increse-or-decrease-after-meshing/1951/1 "2024-08-16T12:37:07Z")

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how to change density of elements on edge after meshing

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**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\
**Post date:** [August 16, 2024, 12:44pm UTC](https://prepomax.discourse.group/t/density-of-edge-increse-or-decrease-after-meshing/1951/2 "2024-08-16T12:44:31Z")

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You can use the mesh refinement tool for that:

 ![mesh refinement](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/5/5ae792f385b7facd4c5b7a7c91664391d3edf1a6.png)

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**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [August 17, 2024, 12:12pm UTC](https://prepomax.discourse.group/t/density-of-edge-increse-or-decrease-after-meshing/1951/3 "2024-08-17T12:12:12Z")

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> [@krishna](#):
>
> how to change density of elements on edge after meshing

It is not possible to do it after meshing. The meshing must be repeated with additional settings.

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<div class="post-metadata">

**Author:** ![krishna](https://avatars.discourse-cdn.com/v4/letter/k/71c47a/32.png) [@krishna](https://prepomax.discourse.group/u/krishna)\
**Post date:** [August 23, 2024, 12:12pm UTC](https://prepomax.discourse.group/t/density-of-edge-increse-or-decrease-after-meshing/1951/4 "2024-08-23T12:12:53Z")

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hi!  
if we use mesh refinement we can correct by changing element size , but i want to change the density only on specific edge  
like an edge having 6 nodes we have to change to 5 nodes or 4 nodes

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<div class="post-metadata">

**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [August 27, 2024, 7:38am UTC](https://prepomax.discourse.group/t/density-of-edge-increse-or-decrease-after-meshing/1951/5 "2024-08-27T07:38:05Z")

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> [@krishna](#):
>
> n edge having 6 nodes we have to change to 5

You can set Mesh Setup → Mesh refinement only for selected edges.

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<div class="post-metadata">

**Author:** ![krishna](https://avatars.discourse-cdn.com/v4/letter/k/71c47a/32.png) [@krishna](https://prepomax.discourse.group/u/krishna)\
**Post date:** [September 11, 2024, 8:44am UTC](https://prepomax.discourse.group/t/density-of-edge-increse-or-decrease-after-meshing/1951/6 "2024-09-11T08:44:03Z")

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but there will be so many edges to do that refiniment.

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**Author:** ![synt](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/synt/32/4658_2.png) [@synt](https://prepomax.discourse.group/u/synt)\
**Post date:** [September 11, 2024, 4:09pm UTC](https://prepomax.discourse.group/t/density-of-edge-increse-or-decrease-after-meshing/1951/7 "2024-09-11T16:09:14Z")

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this feature can be similar,

> [@Select multiple edge by length criteria](https://prepomax.discourse.group/t/select-multiple-edge-by-length-criteria/1255):
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> hi, currently structured hexahedral mesh by extrusion or revolving are supported well using new Gmsh mesher. So, a mesh refinement based edge division can be frequently in use. However, i miss the feature to select multiple edge by length criteria. Salome CAD/CAE is capable using filter criteria of minimum and maximum. An example of part shown above, number of division along thickness is required to refines for accuracy…