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<h1>Diagonal inversion of elements</h1>\r
\r
-<p>Type topic text here.</p>\r
+<p> In MESH \r
+ you can inverse the diagonal (edge) of a pseudo-quadrangle formed by two \r
+ neighboring triangles with one common edge.</p>\r
+\r
+<p> </p>\r
+\r
+<p class=TODO>To inverse the diagonal:</p>\r
+\r
+<p class=TODO> </p>\r
+\r
+<p class="whs1">1. From the <span style="font-weight: bold;"><B>Modification \r
+ </B></span>menu choose the <span style="font-weight: bold;"><B>Diagonal inversion \r
+ </B></span>item or click <img src="../image70.gif" width="24px" height="22px" border="0" class="img_whs2"> button in the toolbar. The following \r
+ dialog box shall appear:</p>\r
+\r
+<p class="whs1"> </p>\r
+\r
+<p class="whs1"><img src="../pics/diagonalinversion.png" x-maintain-ratio="TRUE" width="306px" height="163px" border="0" class="img_whs3"></p>\r
+\r
+<p class="whs1"> </p>\r
+\r
+<p class="whs1">2. Enter the ID of the required edge in the \r
+ <span style="font-weight: bold;"><B>Edge </B></span> field \r
+ or select this edge in the 3D viewer. </p>\r
+\r
+<p class="whs1"> </p>\r
+\r
+<p class="whs1">3. Click the <span style="font-weight: bold;"><B>Apply \r
+ </B></span>or <span style="font-weight: bold;"><B>OK </B></span>button.</p>\r
+\r
+<p class=TODO\r
+ style="margin-left: 40px;"> </p>\r
+\r
+<p> </p>\r
+\r
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+<td width="50%" class="whs7">\r
+<p><img src="../image38.jpg" width="300px" height="224px" border="0" class="img_whs8"></td>\r
+<td width="50%" class="whs9">\r
+<p><img src="../image36.jpg" width="300px" height="224px" border="0" class="img_whs8"></td></tr>\r
+</table>\r
+\r
+<p> </p>\r
+\r
+<p> <span style="font-weight: bold;"><B>See \r
+ Also</B></span> a sample TUI Script of a <a href="../modifying_meshes.htm#bookmark4">Diagonal \r
+ Inversion of Elements</a> operation. </p>\r
+\r
+<p> </p>\r
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