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diff --git a/source/blender/freestyle/intern/scene_graph/Node.h b/source/blender/freestyle/intern/scene_graph/Node.h
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+++ b/source/blender/freestyle/intern/scene_graph/Node.h
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+//
+//  Filename         : Node.h
+//  Author(s)        : Stephane Grabli
+//  Purpose          : Abstract class for scene graph nodes. Inherits from 
+//                     BaseObject which defines the addRef release mechanism.
+//  Date of creation : 24/01/2002
+//
+///////////////////////////////////////////////////////////////////////////////
+
+
+//
+//  Copyright (C) : Please refer to the COPYRIGHT file distributed 
+//   with this source distribution. 
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU General Public License
+//  as published by the Free Software Foundation; either version 2
+//  of the License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef  NODE_H
+# define NODE_H
+
+# include "../system/FreestyleConfig.h"
+# include "../system/BaseObject.h"
+# include "SceneVisitor.h"
+# include "../geometry/BBox.h"
+# include "../geometry/Geom.h"
+# include "../system/Precision.h"
+
+using namespace std;
+using namespace Geometry;
+
+class LIB_SCENE_GRAPH_EXPORT Node : public BaseObject
+{
+public:
+
+  inline Node() : BaseObject() {}
+  inline Node(const Node& iBrother) : BaseObject()
+  {
+    _BBox = iBrother.bbox();
+  }
+  virtual ~Node(){}
+
+  /*! Accept the corresponding visitor
+   * Each inherited node 
+   * must overload this method
+   */
+  virtual void accept(SceneVisitor& v) {
+    v.visitNode(*this);
+  }
+
+  /*! bounding box management */
+  /*! Returns the node bounding box 
+   *  If no bounding box exists, an empty bbox
+   *  is returned
+   */
+  virtual const BBox<Vec3r>& bbox() const {return _BBox;}
+
+  /*! Sets the Node bounding box */
+  virtual void setBBox(const BBox<Vec3r>& iBox) {_BBox = iBox;}
+
+  /*! Makes the union of _BBox and iBox */
+  virtual void AddBBox(const BBox<Vec3r>& iBox) 
+  {
+    if(iBox.empty())
+      return;
+
+    if(_BBox.empty())
+      _BBox = iBox;
+    else
+      _BBox += iBox;
+  }
+
+  /*! Updates the BBox */
+  virtual const BBox<Vec3r>& UpdateBBox() {return _BBox;}
+
+  /*! Clears the bounding box */
+  virtual void clearBBox() { _BBox.clear(); }
+  
+protected:
+  
+private: 
+  BBox<Vec3r> _BBox;
+};
+
+#endif // NODE_H