.. _over_constrained_volumes_page:

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Over-constrained volumes
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This mesh quality control highlights volumes sharing only one border with other volumes.


.. note::
	The highlighted volumes are actually over-constrained only if, at the computation time, the boundary conditions on the borders where the nodes are located are all Dirichlet boundary conditions.

.. image:: ../images/over_constrained_volumes.png
	:align: center

.. centered::
	Over-constrained volume is displayed in red.

**See Also** a sample TUI Script of a :ref:`tui_over_constrained_volumes` filter.