+ /**
+ * Set flag indicating needs to invert altitude values
+ * \param theIsInverted new invert value
+ * \param theIsUpdate flag indicating necessity to update points
+ */
+ HYDRODATA_EXPORT void SetAltitudesInverted( const bool theIsInverted,
+ const bool theIsUpdate = true );
+
+ /**
+ * Returns flag indicating needs to invert altitude values.
+ */
+ HYDRODATA_EXPORT bool IsAltitudesInverted() const;