1 .. _minimum_angle_page:
7 **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).
9 **To apply the Minimum angle quality criterion to your mesh:**
11 #. Display your mesh in the viewer.
12 #. Choose **Controls > Face Controls > Minimum angle** or click **"Minimum Angle"** button.
14 .. image:: ../images/image38.png
18 **"Minimum Angle" button**
20 Your mesh will be displayed in the viewer with its elements colored according to the applied mesh quality control criterion:
22 .. image:: ../images/image92.jpg
25 **See Also** a sample TUI Script of a :ref:`tui_minimum_angle` operation.