/*! 

\page free_faces_page Check Free Faces

This operation highlights in red all free faces of the selected shape in the 3D Viewer.

A free face is a face, which is not shared between several sub-shapes of the shape.

\image html repair10.png

Press \b Apply or <b>Apply and Close</b> button to publish the corresponding faces in the study. 

<b>TUI Command:</b> <em>GetFreeFacesIDs(Shape),</em> where \em Shape is
a shape to be checked.

\image html repair10a.png

See also a \ref tui_free_faces_page "TUI example".

*/