3 \page convert_to_from_quadratic_mesh_page Convert to/from Quadratic Mesh
5 \n This functionality allows transforming linear meshes (or
6 sub-meshes) to quadratic and vice versa.
7 Note that conversion of a sub-mesh most probably will produce a
8 non-conformal mesh. Elements on the boundary between quadratic and
9 linear sub-meshes become (or remain) quadratic.
11 See \ref adding_quadratic_elements_page for more information about
14 <em>To produce a conversion:</em>
16 <li>Select a mesh or a sub-mesh in the Object Browser or in the
18 <li>From the Modification menu or from the contextual menu in the
19 Object Browser choose <b> Convert to/from Quadratic Mesh</b> item,
20 or click <em>"Convert to/from quadratic"</em> button in the
24 \image html image154.png
25 <em>"Convert to/from quadratic" button</em>
28 The following dialog box will appear:
30 \image html convert.png
33 <li>In this dialog box specify:
36 <li>If it is necessary to convert a linear mesh to quadratic or a quadratic
37 mesh to linear. **Convert to bi-quadratic** creates some types of quadratic
38 elements with additional central nodes: TRIA7, QUAD9 and HEXA27
39 elements instead of TRIA6, QUAD8, and HEXA20 elements
41 <li>If it is necessary to place **medium nodes** of the quadratic mesh **on the
42 geometry** (meshed shape). This option is relevant for conversion to
43 quadratic provided that the mesh is based on a geometry (not imported
47 \image html image156.gif
48 <center>Linear mesh (coarse mesh on a torus)</center>
50 \image html image155.gif
51 <center>Quadratic mesh</center>
54 <li>Click the \b Apply or <b>Apply and Close</b> button.</li>
57 <br><b>See Also</b> a sample TUI Script of a \ref tui_quadratic "Convert to/from quadratic" operation.