Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryData.cs
===================================================================
diff -u -r4184 -r4185
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryData.cs	(.../GeometryData.cs)	(revision 4184)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryData.cs	(.../GeometryData.cs)	(revision 4185)
@@ -38,8 +38,7 @@
     private bool isRegeneratingGeometry;
 
     private bool updatingSurfaceLine;
-    private readonly Routines2D routines2D = new Routines2D();
-    
+
     /// <summary>
     /// Initializes a new instance of the <see cref="GeometryData"/> class.
     /// </summary>
@@ -728,12 +727,12 @@
     /// <param name="endPoint2">Line 2 GeometryPoint 2</param>
     /// <param name="intersect">Intersection coordinates</param>
     /// <returns>True if lines intersect each other</returns>
-    private bool CheckIfIntersectStricktly(Point2D beginPoint1, Point2D endPoint1,
+    private static bool CheckIfIntersectStricktly(Point2D beginPoint1, Point2D endPoint1,
                                                   Point2D beginPoint2, Point2D endPoint2,
                                                   ref Point2D intersect)
     {
         Point2D ip;
-        LineIntersection res = routines2D.DetermineIf2DLinesIntersectStrickly(beginPoint1, endPoint1,
+        LineIntersection res = Routines2D.DetermineIf2DLinesIntersectStrickly(beginPoint1, endPoint1,
                                                                               beginPoint2, endPoint2, out ip);
         if (ip != null)
         {
@@ -753,7 +752,7 @@
     /// <param name="aL2P2">Line 2 GeometryPoint 2</param>
     /// <param name="aIntersect">Intersection coordinates</param>
     /// <returns>True if lines intersect each other</returns>
-    public bool CheckIfIntersect(double[] aL1P1, double[] aL1P2, double[] aL2P1, double[] aL2P2,
+    public static bool CheckIfIntersect(double[] aL1P1, double[] aL1P2, double[] aL2P1, double[] aL2P2,
                                         ref double[] aIntersect)
     {
         var p1 = new Point2D(aL1P1[0], aL1P1[1]);