// Boost.Geometry (aka GGL, Generic Geometry Library) // Copyright (c) 2015-2020, Oracle and/or its affiliates. // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle // Licensed under the Boost Software License version 1.0. // http://www.boost.org/users/license.html #ifndef BOOST_GEOMETRY_GEOMETRIES_HELPER_GEOMETRY_HPP #define BOOST_GEOMETRY_GEOMETRIES_HELPER_GEOMETRY_HPP #include <boost/geometry/core/cs.hpp> #include <boost/geometry/core/coordinate_dimension.hpp> #include <boost/geometry/core/coordinate_type.hpp> #include <boost/geometry/core/point_type.hpp> #include <boost/geometry/core/tag.hpp> #include <boost/geometry/core/tags.hpp> #include <boost/geometry/geometries/box.hpp> #include <boost/geometry/geometries/point.hpp> #include <boost/geometry/algorithms/not_implemented.hpp> namespace boost { namespace geometry { namespace detail { namespace helper_geometries { template < typename Point, typename NewCoordinateType, typename NewUnits, typename CS_Tag = typename cs_tag<Point>::type > struct helper_point { typedef model::point < NewCoordinateType, dimension<Point>::value, typename cs_tag_to_coordinate_system<NewUnits, CS_Tag>::type > type; }; }} // detail::helper_geometries namespace detail_dispatch { template < typename Geometry, typename NewCoordinateType, typename NewUnits, typename Tag = typename tag<Geometry>::type> struct helper_geometry : not_implemented<Geometry> {}; template <typename Point, typename NewCoordinateType, typename NewUnits> struct helper_geometry<Point, NewCoordinateType, NewUnits, point_tag> { typedef typename detail::helper_geometries::helper_point < Point, NewCoordinateType, NewUnits >::type type; }; template <typename Box, typename NewCoordinateType, typename NewUnits> struct helper_geometry<Box, NewCoordinateType, NewUnits, box_tag> { typedef model::box < typename helper_geometry < typename point_type<Box>::type, NewCoordinateType, NewUnits >::type > type; }; } // detail_dispatch // Meta-function that provides a new helper geometry of the same kind as // the input geometry and the same coordinate system type, // but with a possibly different coordinate type and coordinate system units template < typename Geometry, typename NewCoordinateType = typename coordinate_type<Geometry>::type, typename NewUnits = typename detail::cs_angular_units<Geometry>::type > struct helper_geometry { typedef typename detail_dispatch::helper_geometry < Geometry, NewCoordinateType, NewUnits >::type type; }; }} // namespace boost::geometry #endif // BOOST_GEOMETRY_GEOMETRIES_HELPER_GEOMETRY_HPP