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