This functionality allows you to transtorm standard meshes to quadratic and vice versa. See Adding quadratic elements for more information about quadratic meshes.
To produce a conversion:
From the Modification menu choose the Convert to/from Quadratic Mesh item, or click "Convert to/from quadratic" button in the toolbar.
The following dialog box will appear:
In this dialog box you should select:
See Also a sample TUI Script of a Convert to/from quadratic operation.