# How can I create a Solid mesh for working with the nearest neighbor mapping?

**URL:** <https://precice.discourse.group/t/how-can-i-create-a-solid-mesh-for-working-with-the-nearest-neighbor-mapping/243>\
**Category:** Non-preCICE\
**Tags:** data-mapping, calculix, inactive\
**Created:** [May 15, 2020, 5:18pm UTC](https://precice.discourse.group/t/how-can-i-create-a-solid-mesh-for-working-with-the-nearest-neighbor-mapping/243 "2020-05-15T17:18:26Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![KyleDavisSA](https://yyz2.discourse-cdn.com/free1/user_avatar/precice.discourse.group/kyledavissa/32/108_2.png) [@KyleDavisSA](https://precice.discourse.group/u/KyleDavisSA)\
**Post date:** [May 26, 2020, 2:26pm UTC](https://precice.discourse.group/t/how-can-i-create-a-solid-mesh-for-working-with-the-nearest-neighbor-mapping/243/4 "2020-05-26T14:26:48Z")

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Hi Jessica,

I can’t see any problems with the mesh itself. I have never had a problem generating a surface file from Salome before. I noticed in the results _flap.frd_ that one of the vertices at the top remains zero while the other points do not. Looks like it is accidnetally fixed, but can’t see that in the files. I could not repeat this result by using CalculiX only, which indicates that the _.nam_ files are not the issue.

Is the problem in the figure below repeated with other mapping parameters for this mesh, such as RBF and NN?

![Screenshot from 2020-05-26 16-23-00](https://global.discourse-cdn.com/free1/uploads/precice/original/1X/b7e45b9d6381d38351d8b956ca72e891f5a42afb.png)

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