/usr/include/mapnik/agg/agg_conv_transform.h is in libmapnik-dev 2.2.0+ds1-6build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Anti-Grain Geometry - Version 2.4
// 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"
namespace agg
{
//----------------------------------------------------------conv_transform
template<class VertexSource, class Transformer=trans_affine> class conv_transform
{
public:
conv_transform(VertexSource& source, Transformer& tr) :
m_source(&source), m_trans(&tr) {}
void attach(VertexSource& source) { m_source = &source; }
void rewind(unsigned path_id)
{
m_source->rewind(path_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(Transformer& tr)
{
m_trans = &tr;
}
private:
conv_transform(const conv_transform<VertexSource>&);
const conv_transform<VertexSource>&
operator = (const conv_transform<VertexSource>&);
VertexSource* m_source;
const Transformer* m_trans;
};
}
#endif
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