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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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+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2010 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __FREESTYLE_NODE_H__
+#define __FREESTYLE_NODE_H__
+
+/** \file blender/freestyle/intern/scene_graph/Node.h
+ *  \ingroup freestyle
+ *  \brief Abstract class for scene graph nodes. Inherits from BaseObject which defines the addRef release mechanism.
+ *  \author Stephane Grabli
+ *  \date 24/01/2002
+ */
+
+#include "SceneVisitor.h"
+
+#include "../system/BaseObject.h"
+#include "../system/FreestyleConfig.h"
+#include "../system/Precision.h"
+
+#include "../geometry/BBox.h"
+#include "../geometry/Geom.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 // __FREESTYLE_NODE_H__