Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsInput.cs
===================================================================
diff -u -rba00ac482d95f158a6f51caec7b0de3d1e1ecc4c -rfa851b16b32a7255c860355147a3ed4deaa10cef
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsInput.cs	(.../GrassCoverErosionInwardsInput.cs)	(revision ba00ac482d95f158a6f51caec7b0de3d1e1ecc4c)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Data/GrassCoverErosionInwardsInput.cs	(.../GrassCoverErosionInwardsInput.cs)	(revision fa851b16b32a7255c860355147a3ed4deaa10cef)
@@ -106,13 +106,13 @@
         /// <summary>
         /// Gets the geometry of the foreshore.
         /// </summary>
-        public Point2D[] ForeshoreGeometry
+        public RoundedPoint2DCollection ForeshoreGeometry
         {
             get
             {
                 return dikeProfile != null
-                           ? dikeProfile.ForeshoreGeometry.ToArray()
-                           : new Point2D[0];
+                           ? dikeProfile.ForeshoreGeometry
+                           : new RoundedPoint2DCollection(2, Enumerable.Empty<Point2D>());
             }
         }