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82 lines
2.8 KiB
Plaintext
82 lines
2.8 KiB
Plaintext
/*!
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\page extrusion_page Extrusion
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\n Extrusion is used to build mesh elements of plus one
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dimension than the input ones. Any node, segment or 2D element can be
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extruded. Element of each type extrude into elements of a certain type
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as follows:
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<table>
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<tr><td><b>Extruded element</b></td><td><b> Result elements </b></td></tr>
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<tr><td>Node </td><td> Segments </td></tr>
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<tr><td>Segment </td><td> Quadrilaterals </td></tr>
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<tr><td>Triangle </td><td> Pentahedrons </td></tr>
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<tr><td>Quadrilateral </td><td> Hexahedrons </td></tr>
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<tr><td>Polygon </td><td> Polyhedrons </td></tr>
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<tr><td>Hexagonal polygon </td><td> Hexagonal prism </td></tr>
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</table>
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<em>To use extrusion:</em>
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<ol>
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<li>From the \b Modification menu choose the \b Extrusion item or click
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<em>"Extrusion"</em> button in the toolbar.
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<center>
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\image html image91.png
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<em>"Extrusion" button</em>
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</center>
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The following dialog common for line and planar elements will appear:
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\image html extrusionalongaline1.png
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\image html extrusionalongaline2.png
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</li>
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<li>In this dialog:
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<ul>
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<li>Select the type of elements which will be extruded (0D, 1D or 2D).</li>
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<li>Specify the IDs of the elements which will be extruded by one
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following means:
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<ul>
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<li><b>Select the whole mesh, submesh or group</b> activating this
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checkbox.</li>
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<li>Choose mesh elements with the mouse in the 3D Viewer. It is
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possible to select a whole area with a mouse frame.</li>
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<li>Input the element IDs directly in <b>ID Elements</b>
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field. The selected elements will be highlighted in the viewer.</li>
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<li>Apply Filters. <b>Set filter</b> button allows to apply a
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filter to the selection of elements. See more about filters in
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the \ref filtering_elements "Selection filters" page.</li>
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</ul>
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</li>
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<li>If the <b>Extrude to Distance</b> radio button is selected</li>
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<ul>
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<li>specify the distance at which the elements will be extruded.</li>
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</ul>
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<li>If the <b>Extrude Along Vector</b> radio button is selected</li>
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<ul>
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<li>specify the coordinates of the vector along which the elements
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will be extruded, or select the face (the normal to the face will
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define the vector),</li>
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<li>specify the distance of extrusion along the vector.</li>
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</ul>
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<li>Specify the number of steps.</li>
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<li>If you activate <b>Generate Groups</b> check-box then the created
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elements contained in groups will be included into new groups named
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by pattern "<old group name>_extruded". </li>
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</ul>
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<li>Click \b Apply or <b> Apply and Close</b> button to confirm the operation.</li>
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</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"
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<br><b>See Also</b> a sample TUI Script of an
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\ref tui_extrusion "Extrusion" operation.
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*/
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