Taper mesh quality criterion represents the ratio of the areas of two triangles separated by a diagonal within a quadrilateral face.

**JA = 0.25 * (A1 + A2 + A3 + A4)**
**TAPER = MAX(|A1/JA - 1|, |A2/JA - 1|, |A3/JA - 1|, |A4/JA - 1|)**

To apply the Taper quality criterion to your mesh:

  1. Display your mesh in the viewer.

  2. Choose Controls > Face Controls > Taper or click “Taper” button in the toolbar.


    “Taper” button

    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 a Taper operation.