Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryLoop.cs
===================================================================
diff -u -r5527 -r5618
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryLoop.cs	(.../GeometryLoop.cs)	(revision 5527)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryLoop.cs	(.../GeometryLoop.cs)	(revision 5618)
@@ -236,7 +236,7 @@
 
     private bool AddEitherHeadOrEndPointOfCurveToCalcPoints(int index)
     {
-        // Compare by reference (is faster then by value)
+        // Compare by reference (is faster than by value)
         if (CurveList[index].HeadPoint == calcPoints[calcPoints.Count - 1])
         {
             calcPoints.Add(CurveList[index].EndPoint);
@@ -264,6 +264,24 @@
     }
 
     /// <summary>
+    /// Determines if all curves in the loop are equal (by reference) to the curves of the given geometry loop.
+    /// </summary>
+    /// <param name="geometryLoop"></param>
+    /// <returns>true when there are curves and they are equal, else false</returns>
+    public bool HasSameCurvesByReference(GeometryLoop geometryLoop)
+    {
+        foreach (GeometryCurve geometryCurve in CurveList)
+        {
+            if (!geometryLoop.CurveList.Contains(geometryCurve))
+            {
+                return false;
+            }
+        }
+    
+        return CurveList.Count > 2 && CurveList.Count == geometryLoop.CurveList.Count;
+    }
+
+    /// <summary>
     /// Helper class NotEnoughUniquePointsException
     /// </summary>
     public class NotEnoughUniquePointsException : InvalidOperationException