.. _over_constrained_faces_page:

**********************
Over-constrained faces
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This mesh quality control highlights faces having all their points on the border.

.. note::
	The highlighted faces 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_faces.png
	:align: center

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

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