The Aspect Ratio quality criterion for mesh elements is defined as follows:
For a triangle 2D element consisting of 3 nodes the Aspect Ratio is calculated by formula:
where :
For a quadrangle 2D element consisting of 4 nodes the Aspect Ratio is the quality of the worst triange which can be built taking three nodes of the quadrangle. There are four triangles to consider:
To apply the Aspect Ratio quality criterion to your mesh:
1. Display your mesh in the viewer.
2. Choose Controls > Aspect Ratio or click button in the toolbar. Your mesh will be displayed in the viewer with its elements colored according to the applied mesh quality control criterion:
See Also a sample TUI Script of an Aspect Ratio quality control operation.