+bool HYDROData_PolylineXY::IsCustom() const
+{
+ bool isNull = GetShape().IsNull();
+ int aNbPoints = 0;
+
+ //TODO: to check if there is no points
+ //for( int i=0, n=NbSections(); i<n; i++ )
+ // aNbPoints += NbPoints( i );
+
+ return !isNull && aNbPoints == 0;
+}