64 lines
2.5 KiB
C++
64 lines
2.5 KiB
C++
/*****************************************************************************
|
|
*
|
|
* 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
|