else if ( theNbNodes == 4 ) return VTK_TETRA;
else if ( theNbNodes == 5 ) return VTK_PYRAMID;
else if ( theNbNodes == 6 ) return VTK_WEDGE;
else if ( theNbNodes == 4 ) return VTK_TETRA;
else if ( theNbNodes == 5 ) return VTK_PYRAMID;
else if ( theNbNodes == 6 ) return VTK_WEDGE;