struct SMESH_ElementSearcher

 struct SMESH_ElementSearcher
 {
+  virtual const SMDS_MeshElement* FindClosestTo( const gp_Pnt&       point,
+                                                 SMDSAbs_ElementType type) = 0;
 }
+  int Reorient2D (TIDSortedElemSet &       theFaces,
+                  const gp_Dir&            theDirection,
+                  const SMDS_MeshElement * theFace);

+  static double GetDistance( const SMDS_MeshFace* face, const gp_Pnt& point );

+  void ElementBndBoxTree::getElementsInSphere ( const gp_XYZ&     center,
+                                                const double      radius,
+                                                TIDSortedElemSet& foundElems)