3 \page extrusion_page Extrusion
5 \n Extrusion is used to build mesh elements of plus one
6 dimension than the input ones. Any line or planar element can be
7 extruded. Line elements will extrude into quadrilateral plane elements.
8 Triangular and Quadrilateral plane elements extrude into Pentahedron
9 and Hexahedron solids respectively.
11 <em>To use extrusion:</em>
13 <li>From the \b Modification menu choose the \b Extrusion item or click
14 <em>"Extrusion"</em> button in the toolbar.
16 \image html image91.png
17 <center><em>"Extrusion" button</em></center>
19 The following dialog common for line and planar elements will appear:
21 \image html extrusionalongaline1.png
27 <li>select the type of elements which will be extruded (1D or 2D),</li>
28 <li>specify the IDs of the elements which will be extruded:
30 <li><b>Select the whole mesh, submesh or group</b> activating this
32 <li>choose mesh elements with the mouse in the 3D Viewer. It is
33 possible to select a whole area with a mouse frame; or</li>
34 <li>input the element IDs directly in <b>ID Elements</b> field. The selected elements will be highlighted in the
36 <li>apply Filters. <b>Set filter</b> button allows to apply a filter to the selection of elements. See more
37 about filters in the \ref selection_filter_library_page "Selection filter library" page.</li>
40 <li>specify the distance at which the elements will be extruded,</li>
41 <li>specify the vector along which the elements will be extruded,</li>
42 <li>specify the number of steps;</li>
43 <li>activate <b>Generate Groups</b> checkbox if it is necessary to copy the groups of
44 elements of the source mesh to the newly created one. </li>
48 <li>Click \b Apply or <b> Apply and Close</b> button to confirm the operation.</li>
51 \image html image77.jpg "The mesh with an edge selected for extrusion"
53 \image html image76.jpg "The mesh with extruded edge"
55 <br><b>See Also</b> a sample TUI Script of an
56 \ref tui_extrusion "Extrusion" operation.