3 \page aspect_ratio_page Aspect Ratio
5 \n The <b>Aspect Ratio</b> quality criterion for mesh elements reveals
6 the degree of conformity of a mesh element to the regular element of
7 its type (with all edges having the same length). The criterion can
10 \image html formula3.png
12 - The <b>Aspect Ratio</b> of a \b triangle 2D element consisting of 3
13 nodes is calculated by the formula:
15 \image html formula4.png
17 - The <b>Aspect Ratio</b> of a \b quadrangle 2D element consisting of
18 4 nodes is the worst (i.e. the greatest) value from all triangles
19 which can be built taking three nodes of the quadrangle. There are
20 four triangles to consider:
22 \image html image138.gif
24 <em>To apply the Aspect Ratio quality criterion to your mesh:</em>
26 <li>Display your mesh in the viewer.</li>
28 <li>Choose <b>Controls > Aspect Ratio</b> or click <em>"Aspect
29 Ratio"</em> button in the toolbar.
31 \image html image37.gif
32 <center><em>"Aspect Ratio" button</em></center>
34 Your mesh will be displayed in the viewer with its elements colored
35 according to the applied mesh quality control criterion:
37 \image html image94.jpg
41 <br><b>See Also</b> a sample TUI Script of an
42 \ref tui_aspect_ratio "Aspect Ratio quality control" operation.