Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/DikesDesign/SurfaceLineHeightAdapterTest.cs
===================================================================
diff -u -r1970 -r2791
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/DikesDesign/SurfaceLineHeightAdapterTest.cs	(.../SurfaceLineHeightAdapterTest.cs)	(revision 1970)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/DikesDesign/SurfaceLineHeightAdapterTest.cs	(.../SurfaceLineHeightAdapterTest.cs)	(revision 2791)
@@ -50,7 +50,7 @@
             surfaceLine.EnsurePointOfType(2, 1, CharacteristicPointType.DikeTopAtPolder);
             surfaceLine.EnsurePointOfType(3, 0, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var constructNewSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(1);
             Assert.IsNotNull(constructNewSurfaceLine);
         }
@@ -79,7 +79,7 @@
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
 
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             {
                 var newPointAtToeRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtRiver);
@@ -112,7 +112,7 @@
             surfaceLine.EnsurePointOfType(pointAtTopRiver.X, pointAtTopRiver.Z, CharacteristicPointType.DikeTopAtRiver);
             surfaceLine.EnsurePointOfType(pointAtTopPolder.X, pointAtTopPolder.Z, CharacteristicPointType.DikeTopAtPolder);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             double oldSlope = TanSlopeInside(surfaceLine);
             double newSlope = TanSlopeInside(newSurfaceLine);
@@ -141,7 +141,7 @@
             surfaceLine.EnsurePointOfType(pointAtTopPolder.X, pointAtTopPolder.Z, CharacteristicPointType.DikeTopAtPolder);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var actualPoint = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
             var expectedPoint = new GeometryPoint { X = 2, Z = 2 };
@@ -170,7 +170,7 @@
             surfaceLine.EnsurePointOfType(pointAtTopPolder.X, pointAtTopPolder.Z, CharacteristicPointType.DikeTopAtPolder);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             Assert.IsFalse(newSurfaceLine.Geometry.Points.Any(p => p.LocationEquals(pointAtTopRiver)));
         }
@@ -198,7 +198,7 @@
             surfaceLine.EnsurePointOfType(pointAtTopPolder.X, pointAtTopPolder.Z, CharacteristicPointType.DikeTopAtPolder);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var actualPoint = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtPolder);
             var expectedPoint = new GeometryPoint { X = 3, Z = 2 };
@@ -227,7 +227,7 @@
             surfaceLine.EnsurePointOfType(pointAtTopPolder.X, pointAtTopPolder.Z, CharacteristicPointType.DikeTopAtPolder);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             Assert.IsFalse(newSurfaceLine.Geometry.Points.Any(p => p.LocationEquals(pointAtTopPolder)));
         }
@@ -254,7 +254,7 @@
             surfaceLine.EnsurePointOfType(pointAtTopPolder.X, pointAtTopPolder.Z, CharacteristicPointType.DikeTopAtPolder);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var actualPoint = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtPolder);
             var expectedPoint = new GeometryPoint { X = 13 };
@@ -284,7 +284,7 @@
             surfaceLine.EnsurePointOfType(4, 0.5, CharacteristicPointType.ShoulderTopInside);
             surfaceLine.EnsurePointOfType(5, 0, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedPoint = new GeometryPoint() { X = 7, Z = 0 };  // 
             var actualPoint = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtPolder);
@@ -318,7 +318,7 @@
             surfaceLine.EnsurePointOfType(pointAtShoulderTop.X, pointAtShoulderTop.Z, CharacteristicPointType.ShoulderTopInside);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(pointAtSurfaceLevelInside.X, pointAtSurfaceLevelInside.Z, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             Assert.IsNull(newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.ShoulderTopInside));
             Assert.IsNull(newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.ShoulderBaseInside));
@@ -356,7 +356,7 @@
             surfaceLine.EnsurePointOfType(pointAtShoulderTop.X, pointAtShoulderTop.Z, CharacteristicPointType.ShoulderTopInside);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(pointAtSurfaceLevelInside.X, pointAtSurfaceLevelInside.Z, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             Assert.IsTrue(pointAtToePolder.LocationEquals(newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtPolder)));
         }
@@ -388,7 +388,7 @@
             surfaceLine.EnsurePointOfType(pointAtShoulderTop.X, pointAtShoulderTop.Z, CharacteristicPointType.ShoulderTopInside);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(pointAtSurfaceLevelInside.X, pointAtSurfaceLevelInside.Z, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             Assert.IsTrue(pointAtShoulderTop.LocationEquals(newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.ShoulderTopInside)));
         }
@@ -420,7 +420,7 @@
             surfaceLine.EnsurePointOfType(pointAtShoulderTop.X, pointAtShoulderTop.Z, CharacteristicPointType.ShoulderTopInside);
             surfaceLine.EnsurePointOfType(pointAtToePolder.X, pointAtToePolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(pointAtSurfaceLevelInside.X, pointAtSurfaceLevelInside.Z, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedPoint = new GeometryPoint { X = 4.5, Z = 1 };
             var actualPoint = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.ShoulderBaseInside);
@@ -438,7 +438,7 @@
             {
                 throw new SurfaceLineException(validationError.Text);
             }
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             validationError = newSurfaceLine.Validate().FirstOrDefault(vr => vr.MessageType == ValidationResultType.Error);
             if (validationError != null)
@@ -457,7 +457,7 @@
             var location = new Location();
             const double cTolerance = 0.0000001;
             const double newDikeHeight = 19.2;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             Assert.AreEqual(newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtPolder).Z, newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.TrafficLoadOutside).Z, cTolerance);
             Assert.AreEqual(newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtPolder).Z, newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.TrafficLoadInside).Z, cTolerance);
@@ -492,7 +492,7 @@
             surfaceLine.EnsurePointOfType(pointDikeTopAtPolder.X, pointDikeTopAtPolder.Z, CharacteristicPointType.DikeTopAtPolder);
             surfaceLine.EnsurePointOfType(pointDikeToeAtPolder.X, pointDikeToeAtPolder.Z, CharacteristicPointType.DikeToeAtPolder);
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             Assert.AreEqual(newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtPolder).Z, newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.TrafficLoadOutside).Z);
             Assert.AreEqual(newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtPolder).Z, newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.TrafficLoadInside).Z);
@@ -545,7 +545,7 @@
             const double cTolerance = 0.001;
             const double newDikeHeight = 4.0;
             Assert.AreEqual(10, surfaceLine.Geometry.Points.Count);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             Assert.AreEqual(6, newSurfaceLine.Geometry.Points.Count);
             Assert.AreEqual(7.3333, newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver).X, cTolerance);
@@ -580,7 +580,7 @@
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
             location.UseNewDikeTopWidth = true;
             location.NewDikeTopWidth = 1;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 2, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -616,7 +616,7 @@
             surfaceLine.EnsurePointOfType(100, 0, CharacteristicPointType.SurfaceLevelInside);
             location.UseNewDikeTopWidth = true;
             location.NewDikeTopWidth = 0.8;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 2, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -655,7 +655,7 @@
             surfaceLine.EnsurePointOfType(100, -1, CharacteristicPointType.SurfaceLevelInside);
             location.UseNewDikeTopWidth = true;
             location.NewDikeTopWidth = 3;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 2, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -691,7 +691,7 @@
             surfaceLine.EnsurePointOfType(100, -1, CharacteristicPointType.SurfaceLevelInside);
             location.UseNewDikeTopWidth = true;
             location.NewDikeTopWidth = 2;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 2, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -727,7 +727,7 @@
             surfaceLine.EnsurePointOfType(100, -1, CharacteristicPointType.SurfaceLevelInside);
             location.UseNewDikeTopWidth = true;
             location.NewDikeTopWidth = 1.5;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 2, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -769,7 +769,7 @@
             surfaceLine.EnsurePointOfType(100, -1, CharacteristicPointType.SurfaceLevelInside);
             location.UseNewDikeSlopeInside = true;
             location.NewDikeSlopeInside = 0.5;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 2, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -805,7 +805,7 @@
             surfaceLine.EnsurePointOfType(100, -1, CharacteristicPointType.SurfaceLevelInside);
             location.UseNewDikeSlopeInside = true;
             location.NewDikeSlopeInside = 2;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 2, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -844,7 +844,7 @@
             surfaceLine.EnsurePointOfType(100, -1, CharacteristicPointType.SurfaceLevelInside);
             location.UseNewDikeSlopeOutside = true;
             location.NewDikeSlopeOutside = 2;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 1.5, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -880,7 +880,7 @@
             surfaceLine.EnsurePointOfType(100, -1, CharacteristicPointType.SurfaceLevelInside);
             location.UseNewDikeSlopeOutside = true;
             location.NewDikeSlopeOutside = 0.5;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 3, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -920,7 +920,7 @@
             location.NewDikeSlopeInside = 2;
             location.UseNewDikeTopWidth = true;
             location.NewDikeTopWidth = 1.5;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 1.5, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -969,7 +969,7 @@
             location.NewDikeSlopeInside = 0.5;
             location.UseNewDikeTopWidth = true;
             location.NewDikeTopWidth = 1.5;
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             var expectedNewTopRiver = new GeometryPoint() { X = 1.5, Z = 2 };
             var actualNewTopRiver = newSurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeTopAtRiver);
@@ -992,10 +992,11 @@
             const double newDikeHeight = 19.0;
             var pointSurfaceLevelInside = new GeometryPoint { X = 40, Z = 12 }; // Set surfacelevelinside just beside ditch to force exception
             surfaceLine.EnsurePointOfType(pointSurfaceLevelInside.X, pointSurfaceLevelInside.Z, CharacteristicPointType.SurfaceLevelInside);
-            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location);
+            var surfaceLineAdapter = new SurfaceLineHeightAdapter(surfaceLine, location, 0);
             var newSurfaceLine = surfaceLineAdapter.ConstructNewSurfaceLine(newDikeHeight);
             Assert.Null(newSurfaceLine);
         }
+
         /// <summary>
         /// Determines the tan slope inside.
         /// </summary>