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diff --git a/agg/inc/agg_conv_transform.h b/agg/inc/agg_conv_transform.h
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+++ b/agg/inc/agg_conv_transform.h
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+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.3
+// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
+//
+// Permission to copy, use, modify, sell and distribute this software
+// is granted provided this copyright notice appears in all copies.
+// This software is provided "as is" without express or implied
+// warranty, and with no claim as to its suitability for any purpose.
+//
+//----------------------------------------------------------------------------
+// Contact: mcseem@antigrain.com
+//          mcseemagg@yahoo.com
+//          http://www.antigrain.com
+//----------------------------------------------------------------------------
+//
+// class conv_transform
+//
+//----------------------------------------------------------------------------
+#ifndef AGG_CONV_TRANSFORM_INCLUDED
+#define AGG_CONV_TRANSFORM_INCLUDED
+
+#include "agg_basics.h"
+#include "agg_trans_affine.h"
+#include "agg_vertex_iterator.h"
+
+namespace agg
+{
+
+    //----------------------------------------------------------conv_transform
+    template<class VertexSource, class Transformer=trans_affine> class conv_transform
+    {
+    public:
+        conv_transform(VertexSource& source, const Transformer& tr) :
+            m_source(&source), m_trans(&tr) {}
+
+        void set_source(VertexSource& source) { m_source = &source; }
+
+        void rewind(unsigned id)
+        {
+            m_source->rewind(id);
+        }
+
+        unsigned vertex(double* x, double* y)
+        {
+            unsigned cmd = m_source->vertex(x, y);
+            if(is_vertex(cmd))
+            {
+                m_trans->transform(x, y);
+            }
+            return cmd;
+        }
+
+        void transformer(const Transformer& tr)
+        {
+            m_trans = &tr;
+        }
+
+        typedef conv_transform<VertexSource, Transformer> source_type;
+        typedef vertex_iterator<source_type> iterator;
+        iterator begin(unsigned id) { return iterator(*this, id); }
+        iterator end() { return iterator(path_cmd_stop); }
+
+    private:
+        conv_transform(const conv_transform<VertexSource>&);
+        const conv_transform<VertexSource>&
+            operator = (const conv_transform<VertexSource>&);
+
+        VertexSource*      m_source;
+        const Transformer* m_trans;
+    };
+
+
+}
+
+#endif