/usr/include/mapnik/projection.hpp 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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*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2011 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef MAPNIK_PROJECTION_HPP
#define MAPNIK_PROJECTION_HPP
// mapnik
#include <mapnik/config.hpp>
#include <mapnik/well_known_srs.hpp>
// boost
#include <boost/optional.hpp>
// stl
#include <string>
#include <stdexcept>
namespace mapnik {
class proj_init_error : public std::runtime_error
{
public:
proj_init_error(std::string const& params)
: std::runtime_error("failed to initialize projection with: '" + params + "'") {}
};
class MAPNIK_DECL projection
{
friend class proj_transform;
public:
projection(std::string const& params,
bool defer_proj_init = false);
projection(projection const& rhs);
~projection();
projection& operator=(projection const& rhs);
bool operator==(const projection& other) const;
bool operator!=(const projection& other) const;
bool is_initialized() const;
bool is_geographic() const;
boost::optional<well_known_srs_e> well_known() const;
std::string const& params() const;
void forward(double & x, double & y) const;
void inverse(double & x,double & y) const;
std::string expanded() const;
void init_proj4() const;
private:
void swap (projection& rhs);
private:
std::string params_;
bool defer_proj_init_;
mutable bool is_geographic_;
mutable void * proj_;
mutable void * proj_ctx_;
};
template <typename charT, typename traits>
std::basic_ostream<charT, traits> &
operator << ( std::basic_ostream<charT, traits> & s, mapnik::projection const& p )
{
s << "projection(\"" << p.params() << "\")";
return s;
}
}
#endif // MAPNIK_PROJECTION_HPP
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