+ * Update the geometry object.
+ * Call this method whenever you made changes for object data.
+ */
+ HYDRODATA_EXPORT virtual void Update();
+
+ /**
+ * Returns the list of all reference objects of this object.
+ */
+ HYDRODATA_EXPORT virtual HYDROData_SequenceOfObjects GetAllReferenceObjects() const;
+
+ /**
+ * Sets the "MustBeUpdated" flag: if object is depended on updated features.
+ * Reimplemented to update the state of child 3D object.
+ */
+ HYDRODATA_EXPORT virtual void SetToUpdate( bool theFlag );
+
+
+ /**
+ * Sets the top(2d projection) shape of the object.