+ * Sets the interpolator for zone. By default it is NULL and original
+ * interpolation algorithms are used to calculate points altitudes.
+ * If you set interpolator it won't be stored in the data model structure,
+ * it will be deleted during that time as this zone will be freed.
+ */
+ HYDRODATA_EXPORT virtual void SetInterpolator( HYDROData_IInterpolator* theInter );
+
+ /**
+ * * Returns the interpolator of zone object.
+ */
+ HYDRODATA_EXPORT virtual HYDROData_IInterpolator* GetInterpolator() const;
+
+
+ /**
+ * Sets the merging type for conflict altitudes.