.. _minimum_angle_page:

*************
Minimum angle
*************

**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).

**To apply the Minimum angle quality criterion to your mesh:**

#. Display your mesh in the viewer.
#. Choose **Controls > Face Controls > Minimum angle** or click **"Minimum Angle"** button.

	.. image:: ../images/image38.png
		:align: center

	.. centered::
		**"Minimum Angle" button**

	Your mesh will be displayed in the viewer with its elements colored according to the applied mesh quality control criterion:

	.. image:: ../images/image92.jpg
		:align: center

**See Also** a sample TUI Script of a :ref:`tui_minimum_angle` operation.