bg_helpers.hpp

#ifndef BG_HELPERS_HPP
#define BG_HELPERS_HPP

#include "eulerian_paths.hpp"
#include <boost/functional/hash/hash.hpp>

namespace bg_helpers {

// The below implementations of buffer are similar to bg::buffer but
// always convert to floating-point before doing work, if needed, and
// convert back afterward, if needed.  Also, they work if expand_by is
// 0, unlike bg::buffer.
multi_polygon_type_fp buffer(multi_polygon_type_fp const & geometry_in, coordinate_type_fp expand_by);

multi_polygon_type_fp buffer_miter(multi_polygon_type_fp const & geometry_in, coordinate_type_fp expand_by);

template<typename CoordinateType>
multi_polygon_type_fp buffer(polygon_type_fp const & geometry_in, CoordinateType expand_by);

template<typename CoordinateType>
multi_polygon_type_fp buffer(multi_linestring_type_fp const & geometry_in, CoordinateType expand_by);

template<typename CoordinateType>
multi_polygon_type_fp buffer(ring_type_fp const & geometry_in, CoordinateType expand_by);

template<typename CoordinateType>
multi_polygon_type_fp buffer_miter(ring_type_fp const & geometry_in, CoordinateType expand_by);

} // namespace bg_helpers

#endif //BG_HELPERS_HPP