Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryGenerator.cs
===================================================================
diff -u -r5214 -r5216
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryGenerator.cs	(.../GeometryGenerator.cs)	(revision 5214)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryGenerator.cs	(.../GeometryGenerator.cs)	(revision 5216)
@@ -1053,7 +1053,7 @@
         double num2 = !pointXz3.Z.IsNearEqual(pointXz4.Z) ? (pointXz3.X - pointXz4.X) / (pointXz3.Z - pointXz4.Z) : double.MaxValue;
         if (Math.Abs(Math.Abs(num1) - Math.Abs(num2)) > 5E-12)
         {
-            flag3 = DetermineFlagValues1to4(flag3, pointXz1, pointXz3, pointXz4, pointXz2, ref flag4, ref flag1, ref flag2);
+            DetermineFlagValues1to4(pointXz1, pointXz3, pointXz2, pointXz4, ref flag3, ref flag4, ref flag1, ref flag2);
         }
 
         bool flag5 = Routines2D.DetermineIfPointsCoincide(pointXz1.X, pointXz1.Z, pointXz3.X, pointXz3.Z, 0.001);
@@ -1175,7 +1175,7 @@
         }
     }
 
-    private static bool DetermineFlagValues1to4(bool flag3, Point2D pointXz1, Point2D pointXz3, Point2D pointXz4, Point2D pointXz2, ref bool flag4, ref bool flag1, ref bool flag2)
+    private static void DetermineFlagValues1to4(Point2D pointXz1, Point2D pointXz3, Point2D pointXz2, Point2D pointXz4, ref bool flag3,  ref bool flag4, ref bool flag1, ref bool flag2)
     {
         if (flag3 && flag4)
         {
@@ -1194,8 +1194,6 @@
             else
                 flag2 = false;
         }
-
-        return flag3;
     }
 
     private GeometryCurve SplitCurve(GeometryCurve curve, Point2D aPointOnCurve)