dimension than the input ones. Any node, segment or 2D element can be
extruded. Each type of elements has a corresponding type of extruded elements:
<table>
-<tr><td><b>Extruded element</b></td><td><b> Result elements </b></td></tr>
-<tr><td>Node </td><td> Segments </td></tr>
-<tr><td>Segment </td><td> Quadrilaterals </td></tr>
-<tr><td>Triangle </td><td> Pentahedrons </td></tr>
-<tr><td>Quadrilateral </td><td> Hexahedrons </td></tr>
-<tr><td>Polygon </td><td> Polyhedrons </td></tr>
+<tr><td><b>Extruded element</b></td><td><b> Result element </b></td></tr>
+<tr><td>Node </td><td> Segment </td></tr>
+<tr><td>Segment </td><td> Quadrilateral </td></tr>
+<tr><td>Triangle </td><td> Pentahedron </td></tr>
+<tr><td>Quadrilateral </td><td> Hexahedron </td></tr>
+<tr><td>Polygon </td><td> Polyhedron </td></tr>
<tr><td>Hexagonal polygon </td><td> Hexagonal prism </td></tr>
</table>
<li>In this dialog:
<ul>
- <li>Select the type of elements which will be extruded (0D, 1D or 2D).</li>
+ <li>Select the type of elements which will be extruded (nodes, 1D or
+ 2D elements).</li>
<li>Specify the IDs of the elements which will be extruded by one
following means:
<ul>
<li>specify the distance of extrusion along the vector.</li>
</ul>
<li>Specify the number of steps.</li>
- <li>If you activate <b>Generate Groups</b> check-box, the created
- elements contained in groups will be included into new groups named
- by pattern "<old group name>_extruded" and "<old group name>_top".</li>
+ <li>If you activate <b>Generate Groups</b> check-box, the <em>result elements</em>
+ created from <em>extruded elements</em> contained in groups will be
+ included into new groups named by pattern "<old group
+ name>_extruded" and "<old group name>_top". For example if an
+ extruded quadrangle is included in \a Group_1 group then result
+ hexahedra will be included in \a Group_1_extruded group and a
+ quadrangle created at the "top" of extruded mesh will
+ be included in \a Group_1_top group. <br>This check-box is active
+ only if there are some groups in the mesh.</li>
</ul>
<li>Click \b Apply or <b> Apply and Close</b> button to confirm the operation.</li>