/*!
\page convert_to_from_quadratic_mesh_page Convert to/from Quadratic Mesh
\n This functionality allows transforming linear meshes (or
sub-meshes) to quadratic and vice versa.
Note that conversion of a sub-mesh most probably will produce a
non-conformal mesh. Elements on the boundary between quadratic and
linear sub-meshes become (or remain) quadratic.
See \ref adding_quadratic_elements_page for more information about
quadratic meshes.
To produce a conversion:
- Select a mesh or a sub-mesh in the Object Browser or in the
Viewer.
- From the Modification menu or from the contextual menu in the
Object Browser choose Convert to/from Quadratic Mesh item,
or click "Convert to/from quadratic" button in the
toolbar.
\image html image154.png
"Convert to/from quadratic" button
The following dialog box will appear:
\image html convert.png
- In this dialog box specify:
- If it is necessary to convert a linear mesh to quadratic or a quadratic
mesh to linear. **Convert to bi-quadratic** creates some types of quadratic
elements with additional central nodes: TRIA7, QUAD9 and HEXA27
elements instead of TRIA6, QUAD8, and HEXA20 elements
respectively.
- If it is necessary to place **medium nodes** of the quadratic mesh **on the
geometry** (meshed shape). This option is relevant for conversion to
quadratic provided that the mesh is based on a geometry (not imported
from file).
\image html image156.gif
Linear mesh (coarse mesh on a torus)
\image html image155.gif
Quadratic mesh
- Click the \b Apply or Apply and Close button.
See Also a sample TUI Script of a \ref tui_quadratic "Convert to/from quadratic" operation.
*/