| // Boost.Geometry (aka GGL, Generic Geometry Library) |
| |
| // Copyright (c) 2010 Alfredo Correa |
| // Copyright (c) 2010-2012 Barend Gehrels, Amsterdam, the Netherlands. |
| |
| // Use, modification and distribution is subject to the Boost Software License, |
| // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| #ifndef BOOST_GEOMETRY_GEOMETRIES_ADAPTED_BOOST_ARRAY_HPP |
| #define BOOST_GEOMETRY_GEOMETRIES_ADAPTED_BOOST_ARRAY_HPP |
| |
| |
| #ifdef BOOST_GEOMETRY_ADAPTED_BOOST_ARRAY_TAG_DEFINED |
| #error Include either "boost_array_as_point" or \ |
| "boost_array_as_linestring" or "boost_array_as_ring" \ |
| or "boost_array_as_multi_point" to adapt a boost_array |
| #endif |
| |
| #define BOOST_GEOMETRY_ADAPTED_BOOST_ARRAY_TAG_DEFINED |
| |
| |
| #include <cstddef> |
| |
| #include <boost/type_traits/is_arithmetic.hpp> |
| |
| #include <boost/geometry/core/access.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/tags.hpp> |
| |
| #include <boost/array.hpp> |
| |
| namespace boost { namespace geometry |
| { |
| |
| |
| #ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS |
| namespace traits |
| { |
| |
| |
| #ifndef DOXYGEN_NO_DETAIL |
| namespace detail |
| { |
| |
| |
| // Create class and specialization to indicate the tag |
| // for normal cases and the case that the type of the c-array is arithmetic |
| template <bool> |
| struct boost_array_tag |
| { |
| typedef geometry_not_recognized_tag type; |
| }; |
| |
| |
| template <> |
| struct boost_array_tag<true> |
| { |
| typedef point_tag type; |
| }; |
| |
| |
| } // namespace detail |
| #endif // DOXYGEN_NO_DETAIL |
| |
| |
| // Assign the point-tag, preventing arrays of points getting a point-tag |
| template <typename CoordinateType, std::size_t DimensionCount> |
| struct tag<boost::array<CoordinateType, DimensionCount> > |
| : detail::boost_array_tag<boost::is_arithmetic<CoordinateType>::value> {}; |
| |
| |
| template <typename CoordinateType, std::size_t DimensionCount> |
| struct coordinate_type<boost::array<CoordinateType, DimensionCount> > |
| { |
| typedef CoordinateType type; |
| }; |
| |
| |
| template <typename CoordinateType, std::size_t DimensionCount> |
| struct dimension<boost::array<CoordinateType, DimensionCount> >: boost::mpl::int_<DimensionCount> {}; |
| |
| |
| template <typename CoordinateType, std::size_t DimensionCount, std::size_t Dimension> |
| struct access<boost::array<CoordinateType, DimensionCount>, Dimension> |
| { |
| static inline CoordinateType get(boost::array<CoordinateType, DimensionCount> const& a) |
| { |
| return a[Dimension]; |
| } |
| |
| static inline void set(boost::array<CoordinateType, DimensionCount>& a, |
| CoordinateType const& value) |
| { |
| a[Dimension] = value; |
| } |
| }; |
| |
| |
| } // namespace traits |
| #endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS |
| |
| |
| }} // namespace boost::geometry |
| |
| |
| #define BOOST_GEOMETRY_REGISTER_BOOST_ARRAY_CS(CoordinateSystem) \ |
| namespace boost { namespace geometry { namespace traits { \ |
| template <class T, std::size_t N> \ |
| struct coordinate_system<boost::array<T, N> > \ |
| { \ |
| typedef CoordinateSystem type; \ |
| }; \ |
| }}} |
| |
| |
| #endif // BOOST_GEOMETRY_GEOMETRIES_ADAPTED_BOOST_ARRAY_HPP |
| |