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.. _minimum_angle_page:
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Minimum angle
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**Minimum angle** mesh quality criterion consists of calculation of the minimum value of angle between two adjacent sides of a 2D meshing element (triangle or quadrangle).
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*To apply the Minimum angle quality criterion to your mesh:*
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.. |img| image :: ../images/image38.png
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#. Display your mesh in the viewer.
#. Choose **Controls > Face Controls > Minimum angle** or click *"Minimum Angle"* button |img|.
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Your mesh will be displayed in the viewer with its elements colored according to the applied mesh quality control criterion:
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.. image:: ../images/image92.jpg
:align: center
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**See Also** a sample TUI Script of a :ref: `tui_minimum_angle` filter.
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