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:
42 <li><b>Select the whole mesh, submesh or group</b> activating this
44 <li>choose mesh elements with the mouse in the 3D Viewer. It is
45 possible to select a whole area with a mouse frame; or</li>
46 <li>input the element IDs directly in <b>ID Elements</b> field. The selected elements will be highlighted in the
48 <li>apply Filters. <b>Set filter</b> button allows to apply a filter to the selection of elements. See more
49 about filters in the \ref selection_filter_library_page "Selection filter library" page.</li>
52 <li>If the <b>Extrude to Distance</b> radio button is selected</li>
54 <li>specify the distance at which the elements will be extruded,</li>
56 <li>If the <b>Extrude Along Vector</b> radio button is selected</li>
58 <li>specify the coordinates of the vector along which the elements will be extruded, or select the face (the normal to the face will define the vector)</li>
59 <li>specify the distance of extrusion along the vector,</li>
61 <li>specify the number of steps;</li>
62 <li>activate <b>Generate Groups</b> checkbox if it is necessary to copy the groups of
63 elements of the source mesh to the newly created one. </li>
67 <li>Click \b Apply or <b> Apply and Close</b> button to confirm the operation.</li>
70 \image html image77.jpg "The mesh with an edge selected for extrusion"
72 \image html image76.jpg "The mesh with extruded edge"
74 <br><b>See Also</b> a sample TUI Script of an
75 \ref tui_extrusion "Extrusion" operation.