+ /// Returns \c true, if the current point is less than theOther.
+ /// The point is less than other, if X coordinate is less.
+ /// In case of X's are equal, if Y is less than other.
+ /// If Y's are equal too, compare Z's.
+ GEOMAPI_EXPORT
+ bool isLess(const std::shared_ptr<GeomAPI_Pnt>& theOther) const;
+