+HYDRODATA_EXPORT std::ostream& operator<<( std::ostream& theStream, const QString& theText );
+HYDRODATA_EXPORT std::ostream& operator<<( std::ostream& theStream, const QColor& theText );
+HYDRODATA_EXPORT std::ostream& operator<<( std::ostream& theStream, const TopoDS_Shape& theShape );
+HYDRODATA_EXPORT std::ostream& operator<<( std::ostream& theStream, const TopoDS_Face& theFace );
+HYDRODATA_EXPORT bool operator == ( const gp_XY& thePoint1, const gp_XY& thePoint2 );
+HYDRODATA_EXPORT std::ostream& operator<<( std::ostream& theStream, const gp_XY& theXY );