Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/Point2D.cs
===================================================================
diff -u -r4898 -r5028
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/Point2D.cs	(.../Point2D.cs)	(revision 4898)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/Point2D.cs	(.../Point2D.cs)	(revision 5028)
@@ -57,8 +57,6 @@
     /// </summary>
     public double Z { get; set; }
 
-    public string Name { get; set; }
-
     /// <summary>
     /// Determines whether the location of the given point and this one are the same. 
     /// </summary>
@@ -109,4 +107,34 @@
 
         return String.Compare(ToString(), obj.ToString(), StringComparison.Ordinal);
     }
+    
+    /// <summary>
+    /// Initializes the point coordinates wi    th the coordinates of the given point
+    /// </summary>
+    /// <param name="aPoint"></param>
+    public void Init(Point2D aPoint)
+    {
+        X = aPoint.X;
+        Z = aPoint.Z;
+    }
+
+    /// <summary>
+    /// The name for a point (must be here for the IGeometryObject interface)
+    /// </summary>
+    public string Name { get; set; }
+    
+    public static Point2D operator -(Point2D aPoint2, Point2D aPoint1)
+    {
+        return new Point2D(aPoint2.X - aPoint1.X, aPoint2.Z - aPoint1.Z);
+    }
+    
+    public static Point2D operator *(double aValue1, Point2D aPoint1)
+    {
+        return new Point2D(aValue1 * aPoint1.X, aValue1 * aPoint1.Z);
+    }
+    
+    public static Point2D operator +(Point2D aPoint2, Point2D aPoint1)
+    {
+        return new Point2D(aPoint2.X + aPoint1.X, aPoint2.Z + aPoint1.Z);
+    }
 }
\ No newline at end of file