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diff --git a/source/blender/freestyle/intern/stroke/StrokeAdvancedIterators.h b/source/blender/freestyle/intern/stroke/StrokeAdvancedIterators.h
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+++ b/source/blender/freestyle/intern/stroke/StrokeAdvancedIterators.h
@@ -0,0 +1,142 @@
+//
+//  Filename         : StrokeAdvancedIterators.h
+//  Author(s)        : Stephane Grabli
+//  Purpose          : Iterators used to iterate over the elements of the Stroke
+//                     Can't be used in python
+//  Date of creation : 01/07/2003
+//
+///////////////////////////////////////////////////////////////////////////////
+
+
+//
+//  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  STROKEADVANCEDITERATORS_H
+# define STROKEADVANCEDITERATORS_H
+
+# include "Stroke.h"
+
+namespace StrokeInternal {
+
+  class vertex_const_traits : public Const_traits<StrokeVertex*> {
+  public:
+    typedef std::deque<StrokeVertex*> vertex_container; 
+    typedef vertex_container::const_iterator vertex_container_iterator ;
+  };
+  class vertex_nonconst_traits : public Nonconst_traits<StrokeVertex*> {
+  public:
+    typedef std::deque<StrokeVertex*> vertex_container; //! the vertices container
+    typedef vertex_container::iterator vertex_container_iterator ;
+  };
+
+
+  template<class Traits>
+    class vertex_iterator_base : public IteratorBase<Traits,BidirectionalIteratorTag_Traits>
+  {
+  public:
+    typedef vertex_iterator_base<Traits>  Self;
+  protected:
+    typedef IteratorBase<Traits,BidirectionalIteratorTag_Traits> parent_class;
+    typedef typename Traits::vertex_container_iterator vertex_container_iterator;
+    typedef vertex_iterator_base<vertex_nonconst_traits> iterator;
+    typedef vertex_iterator_base<vertex_const_traits> const_iterator;
+    //protected:
+  public:
+    vertex_container_iterator _it;
+    vertex_container_iterator _begin;
+    vertex_container_iterator _end;
+  public:
+    friend class Stroke;
+    //friend class vertex_iterator;
+    inline vertex_iterator_base()
+      : parent_class()
+    {}
+    inline vertex_iterator_base(const iterator& iBrother) 
+      : parent_class()
+    {_it = iBrother._it;_begin = iBrother._begin;_end = iBrother._end;} 
+    inline vertex_iterator_base(const const_iterator& iBrother) 
+      : parent_class()
+    {_it = iBrother._it;_begin = iBrother._begin;_end = iBrother._end;} 
+  //protected://FIXME
+  public:
+    inline vertex_iterator_base(vertex_container_iterator it, vertex_container_iterator begin, vertex_container_iterator end)
+      : parent_class()
+    {
+      _it = it;
+      _begin = begin;
+      _end = end;
+    }
+    
+  public:
+    virtual ~vertex_iterator_base() {}
+    
+    virtual bool begin() const {return _it==_begin? true : false;}
+    virtual bool end() const {return _it==_end ? true : false;}
+    
+    // operators
+    inline Self& operator++()  // operator corresponding to ++i
+    { 
+      ++_it;
+      return *(this);
+    }
+    inline Self operator++(int)  // opérateur correspondant à i++ 
+    {
+      Self tmp = *this;        // C'est pour cela qu'on stocke la valeur
+      ++_it;                    // dans un temporaire. 
+      return tmp;
+    }
+    inline Self& operator--()  // operator corresponding to ++i
+    { 
+      --_it;
+      return *(this);
+    }
+    inline Self operator--(int)  // opérateur correspondant à i++ 
+    {                                  // c.a.d qui renvoie la valeur *puis* incrémente.
+      Self tmp = *this;        // C'est pour cela qu'on stocke la valeur
+      --_it;                    // dans un temporaire. 
+      return tmp;
+    }
+    
+    // comparibility
+    virtual bool operator!=(const Self& b) const
+    {
+      return (_it != b._it);
+    }
+    virtual bool operator==(const Self& b) const
+    {
+      return !(*this != b);
+    }
+    
+    // dereferencing
+    virtual typename Traits::reference operator*() const  {return *(_it);}
+    virtual typename Traits::pointer operator->() const { return &(operator*());}
+    
+    /*! accessors */
+    inline vertex_container_iterator it() const {return _it;}
+    inline vertex_container_iterator getBegin() const {return _begin;}
+    inline vertex_container_iterator getEnd() const {return _end;}
+  };
+
+} // end of namespace StrokeInternal
+
+
+#endif // STROKEADVANCEDITERATORS_H
+
+