3 \page extrusion_page Extrusion
5 \n Extrusion is used to build mesh elements of plus one
6 dimension than the input ones. Any node, segment or 2D element can be
7 extruded. Element of each type extrude into elements of a certain type
10 <tr><td><b>Extruded element</b></td><td><b> Result elements </b></td></tr>
11 <tr><td>Node </td><td> Segments </td></tr>
12 <tr><td>Segment </td><td> Quadrilaterals </td></tr>
13 <tr><td>Triangle </td><td> Pentahedrons </td></tr>
14 <tr><td>Quadrilateral </td><td> Hexahedrons </td></tr>
15 <tr><td>Polygon </td><td> Polyhedrons </td></tr>
16 <tr><td>Hexagonal polygon </td><td> Hexagonal prism </td></tr>
19 <em>To use extrusion:</em>
21 <li>From the \b Modification menu choose the \b Extrusion item or click
22 <em>"Extrusion"</em> button in the toolbar.
25 \image html image91.png
26 <em>"Extrusion" button</em>
29 The following dialog common for line and planar elements will appear:
31 \image html extrusionalongaline1.png
33 \image html extrusionalongaline2.png
39 <li>Select the type of elements which will be extruded (0D, 1D or 2D).</li>
40 <li>Specify the IDs of the elements which will be extruded by one
43 <li><b>Select the whole mesh, submesh or group</b> activating this
45 <li>Choose mesh elements with the mouse in the 3D Viewer. It is
46 possible to select a whole area with a mouse frame.</li>
47 <li>Input the element IDs directly in <b>ID Elements</b>
48 field. The selected elements will be highlighted in the viewer.</li>
49 <li>Apply Filters. <b>Set filter</b> button allows to apply a
50 filter to the selection of elements. See more about filters in
51 the \ref filtering_elements "Selection filters" page.</li>
54 <li>If the <b>Extrude to Distance</b> radio button is selected</li>
56 <li>specify the distance at which the elements will be extruded.</li>
58 <li>If the <b>Extrude Along Vector</b> radio button is selected</li>
60 <li>specify the coordinates of the vector along which the elements
61 will be extruded, or select the face (the normal to the face will
62 define the vector),</li>
63 <li>specify the distance of extrusion along the vector.</li>
65 <li>Specify the number of steps.</li>
66 <li>If you activate <b>Generate Groups</b> check-box then the created
67 elements contained in groups will be included into new groups named
68 by pattern "<old group name>_extruded". </li>
71 <li>Click \b Apply or <b> Apply and Close</b> button to confirm the operation.</li>
74 \image html image77.jpg "The mesh with an edge selected for extrusion"
76 \image html image76.jpg "The mesh with extruded edge"
78 <br><b>See Also</b> a sample TUI Script of an
79 \ref tui_extrusion "Extrusion" operation.