Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/Routines2D.cs
===================================================================
diff -u -r3850 -r3854
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/Routines2D.cs	(.../Routines2D.cs)	(revision 3850)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/Routines2D.cs	(.../Routines2D.cs)	(revision 3854)
@@ -429,7 +429,7 @@
 
         /// <summary>
         ///  Determines angle between 2 lines.
-        ///  Clockwise Input: point1, commonpoint, point2, commonpoint, normalvect(ex <0,0,-1>), validate  
+        ///  Clockwise Input: point1, commonpoint, point2, commonpoint, normalvect(ex [0,0,-1]), validate  
         /// </summary>
         /// <param name="line1Point1"></param>
         /// <param name="line1Point2"></param>
@@ -619,8 +619,8 @@
             if (result == LineIntersection.Intersects)
             {
                 //check if lies on the line and is not somewhere outside !
-                if ((DoesPointExistInLine(point1X, point1Z, point2X, point2Z, intersectionPoint.X, intersectionPoint.Z, tolerance) &&
-                     DoesPointExistInLine(point3X, point3Z, point4X, point4Z, intersectionPoint.X, intersectionPoint.Z, tolerance)) == false)
+                if (!(DoesPointExistInLine(point1X, point1Z, point2X, point2Z, intersectionPoint.X, intersectionPoint.Z, tolerance) &&
+                     DoesPointExistInLine(point3X, point3Z, point4X, point4Z, intersectionPoint.X, intersectionPoint.Z, tolerance)))
                 {
                     intersectionPoint = null;
                     result = LineIntersection.NoIntersection;