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56 lines
2.0 KiB
Plaintext
56 lines
2.0 KiB
Plaintext
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/*!
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\page split_to_tetra_page Splitting volumes into tetrahedra
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\n This operation allows to split volumic elements into tetrahedra.
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2D mesh is modified accordingly.
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<em>To split volumes:</em>
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<ol>
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<li>Display a mesh or a submesh in the 3D viewer.</li>
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<li>In the \b Modification menu select the <b>Split into Tetrahedra</b> item or
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click <em>"Split into Tetrahedra"</em> button in the toolbar.
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\image html split_into_tetra_icon.png
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<center><em>"Split into Tetrahedra" button</em></center>
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The following dialog box will appear:
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\image html split_into_tetra.png
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\par
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<ul>
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<li>The main list contains the list of volumes. You can click on
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a volume in the 3D viewer and it will be highlighted (lock Shift
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keyboard button to select several volumes). Click \b Add button and
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the ID of this volume will be added to the list. To remove the
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selected element or elements from the list click \b Remove button. <b>Sort
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list</b> button allows to sort the list of IDs. \b Filter button allows to
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apply a definite filter to the selection of volumes.
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<br><b>Note:</b> If you split not all adjacent non-tetrahedral volumes, your mesh becomes
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non-conform.</li>
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<li><b>Apply to all</b> radio button allows to split all
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volumes of the currently displayed mesh or submesh.</li>
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</ul>
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<ul>
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<li>\b Split hexahedron
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<ul>
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<li><b>Into 5 tetrahedra</b>, <b>Into 6 tetrahedra</b> and <b>Into 24 tetrahedra</b> allows to
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specify the number of tetrahedra a hexahedron will be split into. If the specified method does
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not allow to get a conform mesh, a generic solution is applied: an additional node
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is created at the gravity center of a hexahedron, serving an apex of tetrahedra, all quadrangle sides of the hexahedron are split into two triangles each serving a base of a new tetrahedron.</li>
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</ul>
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</li>
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<li><b>Select from</b> a set of fields allows to choose a submesh or an
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existing group whose elements will be automatically added to the
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list.</li>
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</ul>
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<li>Click the \b Apply or <b>Apply and Close</b> button to confirm the operation.</li>
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</ol>
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*/
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