smesh/doc/salome/gui/SMESH/input/extrusion.doc

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/*!
\page extrusion_page Extrusion
\n Extrusion is used to build mesh elements of plus one
dimension than the input ones. Any line or planar element can be
extruded. Line elements will extrude into quadrilateral plane elements.
Triangular and Quadrilateral plane elements extrude into Pentahedron
and Hexahedron solids respectively.
<em>To use extrusion:</em>
<ol>
<li>From the \b Modification menu choose the \b Extrusion item or click
<em>"Extrusion"</em> button in the toolbar.
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\image html image91.png
<center><em>"Extrusion" button</em></center>
The following dialog box will appear:
\image html extrusionalongaline1.png
\image html extrusionalongaline2.png
</li>
<li>In this dialog box you should select:
<ul>
<li>the type of elements which will be extruded (1D or 2D),</li>
<li>specify the IDs of the elements which will be extruded by
selecting them in the 3D viewer or select the whole mesh or
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submesh,
<ul>
<li>Check on <b>Select the whole mesh, submesh or group</b> option
<li>Choosing them manually with the mouse in the 3D Viewer. You can
click on an element in the 3D viewer and it will be highlighted</li>
<li>Applying Filters. The <b>Set filter</b> button allows to apply a
definite filter to selection of the elements. See more
about filters on the
\ref selection_filter_library_page "Selection filter library" page.</li>
</ul>
</li>
<li>specify the distance at which the elements will be extruded,</li>
<li>specify the vector along which the elements will be extruded,</li>
<li>number of steps.</li>
</ul>
<li> <b>Generate Groups</b> checkbox allows copying the groups of
elements of the source mesh to the newly created one. </li>
</li>
<li>Click the \b Apply or \b OK button.</li>
</ol>
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\image html image77.jpg "The mesh with an edge selected for extrusion"
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\image html image76.jpg "The mesh with extruded edge"
<br><b>See Also</b> a sample TUI Script of an
\ref tui_extrusion "Extrusion" operation.
*/