\page taper_page Taper
\n \b Taper mesh quality criterion represents the ratio of the areas
-of two triangles separated by a diagonal. So it can be calculated only
-for elements consisting of 4 nodes.
+of two triangles separated by a diagonal within a quadrilateral face.
-\image html image25.png
+ <b><center>JA = 0.25 * (A1 + A2 + A3 + A4)
+ <br> TAPER = MAX(|A1/JA - 1|, |A2/JA - 1|, |A3/JA - 1|, |A4/JA - 1|)</center></b>
<br><em>To apply the Taper quality criterion to your mesh:</em>
<ol>
<li>Display your mesh in the viewer.</li>
-<li>Choose <b>Controls > Taper</b> or click <em>"Taper"</em> button in
-the toolbar.
+<li>Choose <b>Controls > Face Controls > Taper</b> or click
+<em>"Taper"</em> button in the toolbar.
\image html image36.png
<center><em>"Taper" button</em></center>
