# How to define a mesh in colab as the one imported?

**URL:** <https://fenicsproject.discourse.group/t/how-to-define-a-mesh-in-colab-as-the-one-imported/5085>\
**Category:** mesh\
**Created:** [February 12, 2021, 7:12pm UTC](https://fenicsproject.discourse.group/t/how-to-define-a-mesh-in-colab-as-the-one-imported/5085 "2021-02-12T19:12:21Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![dokken](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/dokken/32/1560_2.png) [@dokken](https://fenicsproject.discourse.group/u/dokken)\
**Post date:** [February 12, 2021, 10:46pm UTC](https://fenicsproject.discourse.group/t/how-to-define-a-mesh-in-colab-as-the-one-imported/5085/4 "2021-02-12T22:46:55Z")

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You need to split the mesh data into one file for the cells, and one for the facets, see: [Extracting mesh regions for gmsh mesh - #16 by dokken](https://fenicsproject.discourse.group/t/extracting-mesh-regions-for-gmsh-mesh/1125/16)  
You can load the facet data as described here:  
[How to extract and use physical labels from GMSH surfaces on FEniCS (2D mesh) - #12 by dokken](https://fenicsproject.discourse.group/t/how-to-extract-and-use-physical-labels-from-gmsh-surfaces-on-fenics-2d-mesh/2269/12)

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