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diff --git a/agg/inc/agg_conv_shorten_path.h b/agg/inc/agg_conv_shorten_path.h
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+++ b/agg/inc/agg_conv_shorten_path.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
+//----------------------------------------------------------------------------
+
+#ifndef AGG_CONV_SHORTEN_PATH_INCLUDED
+#define AGG_CONV_SHORTEN_PATH_INCLUDED
+
+#include "agg_basics.h"
+#include "agg_conv_adaptor_vcgen.h"
+#include "agg_vcgen_vertex_sequence.h"
+
+namespace agg
+{
+
+    //=======================================================conv_shorten_path
+    template<class VertexSource>  class conv_shorten_path :
+    public conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence>
+    {
+    public:
+        typedef conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence> base_type;
+
+        conv_shorten_path(VertexSource& vs) :
+            conv_adaptor_vcgen<VertexSource, vcgen_vertex_sequence>(vs)
+        {
+        }
+
+        void shorten(double s) { base_type::generator().shorten(s); }
+        double shorten() const { return base_type::generator().shorten(); }
+
+    private:
+        conv_shorten_path(const conv_shorten_path<VertexSource>&);
+        const conv_shorten_path<VertexSource>&
+            operator = (const conv_shorten_path<VertexSource>&);
+    };
+
+
+}
+
+#endif