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 choose <b> Convert to/from Quadratic
19 Mesh item </b>, or click <em>"Convert to/from quadratic"</em> button in the
23 \image html image154.png
24 <em>"Convert to/from quadratic" button</em>
27 The following dialog box will appear:
29 \image html convert.png
32 <li>In this dialog box specify:
35 <li>If it is necessary to convert a linear mesh to quadratic or a quadratic
36 mesh to linear. **Convert to bi-quadratic** option does the same as
37 **Convert to quadratic** except for that TRIA7, QUAD9 and HEXA27
38 elements are created instead of TRIA6, QUAD8, and HEXA20 elements
39 respectively. Note that the choice is available only if the selected
40 mesh (or sub-mesh) contains both quadratic and linear elements, else the
41 direction of conversion is selected automatically.</li>
42 <li>If it is necessary to place **medium nodes** of the quadratic mesh **on the
43 geometry** (meshed object). This option is relevant for conversion to
44 quadratic provided that the mesh is based on a geometry (not imported
48 \image html image156.gif
49 <center>Linear mesh (coarse mesh on a torus)</center>
51 \image html image155.gif
52 <center>Quadratic mesh</center>
55 <li>Click the \b Apply or \b OK button.</li>
58 <br><b>See Also</b> a sample TUI Script of a \ref tui_quadratic "Convert to/from quadratic" operation.