# Freefem mesh file

**URL:** <https://community.freefem.org/t/freefem-mesh-file/403>\
**Category:** General Discussion\
**Created:** [May 12, 2020, 10:49pm UTC](https://community.freefem.org/t/freefem-mesh-file/403 "2020-05-12T22:49:33Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mrbenson](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@mrbenson](https://community.freefem.org/u/mrbenson)\
**Post date:** [May 12, 2020, 10:49pm UTC](https://community.freefem.org/t/freefem-mesh-file/403/1 "2020-05-12T22:49:33Z")

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Hi,

I read that the freefem mesh format can define an additional geometry. As far i understand VertexOnGeometricVertex and EdgeOnGeometricEdge refer to all vertices and edges of the geometry (boundary and interior) but i don’t understand what CrackedEdges refers to.

Best regards.