/usr/include/mapnik/geometry_reprojection.hpp is in libmapnik-dev 3.0.9+ds-1.
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) 2015 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_GEOMETRY_REPROJECTION_HPP
#define MAPNIK_GEOMETRY_REPROJECTION_HPP
// mapnik
#include <mapnik/proj_transform.hpp>
#include <mapnik/geometry.hpp>
namespace mapnik {
namespace geometry {
// There is a difference between reprojecting a const vs reprojecting a non const in behavior. If you reproject a
// const a new geometry (or perhaps empty geometry) will be returned no matter how many geometries fail to reproject.
// This is done this way so that large geometry collections that only have a few failing points or polygon parts could
// still be return with out the few failing projections.
template <typename T>
MAPNIK_DECL geometry<T> reproject_copy(geometry<T> const& geom, proj_transform const& proj_trans, unsigned int & n_err);
template <typename T>
MAPNIK_DECL T reproject_copy(T const& geom, proj_transform const& proj_trans, unsigned int & n_err);
template <typename T>
MAPNIK_DECL T reproject_copy(T const& geom, projection const& source, projection const& dest, unsigned int & n_err);
// No error count is required for a non const reprojection and this will reproject in place.
// because the reprojection is done on the same memory it is important to check if it succeeded,
// otherwise you could be dealing with a corrupt geometry.
template <typename T>
MAPNIK_DECL bool reproject(T & geom, proj_transform const& proj_trans);
template <typename T>
MAPNIK_DECL bool reproject(T & geom, projection const& source, projection const& dest);
} // end geometry ns
} // end mapnik ns
#endif // MAPNIK_GEOMETRY_REPROJECTION_HPP
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