# Extracting solution at the domain boundaries

**URL:** <https://fenicsproject.discourse.group/t/extracting-solution-at-the-domain-boundaries/7453>\
**Category:** mathematics\
**Created:** [January 11, 2022, 9:40am UTC](https://fenicsproject.discourse.group/t/extracting-solution-at-the-domain-boundaries/7453 "2022-01-11T09:40:07Z")\
**Posts on this page:** 1\
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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:** [January 11, 2022, 10:20am UTC](https://fenicsproject.discourse.group/t/extracting-solution-at-the-domain-boundaries/7453/2 "2022-01-11T10:20:38Z")

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Have you considered using the `SubMesh` or `MeshView` classes?  
See for instance: [https://dl.acm.org/doi/pdf/10.1145/3471138](https://dl.acm.org/doi/pdf/10.1145/3471138) for examples on how to use meshview  
(code at [GitHub - cdaversin/mixed-dimensional-examples: Code to reproduce numerical examples presented in "Abstractions and automated algorithms for mixed-dimensional finite element methods" (2019)](https://github.com/cdaversin/mixed-dimensional-examples))

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