Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryPointString.cs
===================================================================
diff -u -r7071 -r7073
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryPointString.cs	(.../GeometryPointString.cs)	(revision 7071)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryPointString.cs	(.../GeometryPointString.cs)	(revision 7073)
@@ -491,7 +491,13 @@
 
         return RelativeXzPosition.OnGeometricLine;
     }
-
+    
+    /// <summary>
+    /// Determines the relative position of a point to the geometric line in the XZ-plane.
+    /// </summary>
+    /// <param name="point">The point to check the position for.</param>
+    /// <param name="extraPolationMode">The extrapolation mode to use when determining the position.</param>
+    /// <returns></returns>
     public RelativeXzPosition PositionXzOfPointRelatedToExtrapolatedLine(Point2D point,
                                                                          ExtraPolationMode extraPolationMode = ExtraPolationMode.Beyond)
     {