diff --git a/Interaction/Widgets/vtkBiDimensionalRepresentation2D.h b/Interaction/Widgets/vtkBiDimensionalRepresentation2D.h
index 8b18501a1a78b81309d29c0db4a21af267d4b20d..01108d42c10a48fde3de83d487025bc4b9ef6791 100644
--- a/Interaction/Widgets/vtkBiDimensionalRepresentation2D.h
+++ b/Interaction/Widgets/vtkBiDimensionalRepresentation2D.h
@@ -148,18 +148,6 @@ protected:
   vtkTextMapper   *TextMapper;
   vtkActor2D      *TextActor;
 
-  // Internal variables
-  double P1World[3];
-  double P2World[3];
-  double P3World[3];
-  double P4World[3];
-  double P21World[3];
-  double P43World[3];
-  double T21;
-  double T43;
-  double CenterWorld[3];
-  double StartEventPositionWorld[4];
-
   // Helper method
   void ProjectOrthogonalPoint(double x[4], double y[3], double x1[3], double x2[3], double x21[3],
                               double dir, double xP[3]);