# How can I judge whether a point(x,y,z) in a given mesh?

**URL:** <https://community.freefem.org/t/how-can-i-judge-whether-a-point-x-y-z-in-a-given-mesh/221>\
**Category:** General Discussion\
**Created:** [January 14, 2020, 12:14pm UTC](https://community.freefem.org/t/how-can-i-judge-whether-a-point-x-y-z-in-a-given-mesh/221 "2020-01-14T12:14:13Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Sam0012](https://avatars.discourse-cdn.com/v4/letter/s/b5e925/32.png) [@Sam0012](https://community.freefem.org/u/Sam0012)\
**Post date:** [January 14, 2020, 12:14pm UTC](https://community.freefem.org/t/how-can-i-judge-whether-a-point-x-y-z-in-a-given-mesh/221/1 "2020-01-14T12:14:13Z")

</div>

I have a mesh Th and I have a set of points(x,y,z) in the same space, but may not inside Th, How can I judge whether a point is in the mesh Th? Is there a function that receive a point and a mesh then return the judgement? Thanks a lot in advance!!!  
Sam  
2020-01-14 20:13 China