Chris@16: // Boost.Geometry (aka GGL, Generic Geometry Library)
Chris@16: 
Chris@16: // Copyright (c) 2010 Alfredo Correa
Chris@16: // Copyright (c) 2010-2012 Barend Gehrels, Amsterdam, the Netherlands.
Chris@16: 
Chris@16: // Use, modification and distribution is subject to the Boost Software License,
Chris@16: // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_GEOMETRY_GEOMETRIES_ADAPTED_BOOST_ARRAY_HPP
Chris@16: #define BOOST_GEOMETRY_GEOMETRIES_ADAPTED_BOOST_ARRAY_HPP
Chris@16: 
Chris@16: 
Chris@16: #ifdef BOOST_GEOMETRY_ADAPTED_BOOST_ARRAY_TAG_DEFINED
Chris@16: #error Include either "boost_array_as_point" or \
Chris@16:     "boost_array_as_linestring" or "boost_array_as_ring" \
Chris@16:     or "boost_array_as_multi_point" to adapt a boost_array
Chris@16: #endif
Chris@16: 
Chris@16: #define BOOST_GEOMETRY_ADAPTED_BOOST_ARRAY_TAG_DEFINED
Chris@16: 
Chris@16: 
Chris@16: #include <cstddef>
Chris@16: 
Chris@16: #include <boost/type_traits/is_arithmetic.hpp>
Chris@16: 
Chris@16: #include <boost/geometry/core/access.hpp>
Chris@16: #include <boost/geometry/core/cs.hpp>
Chris@16: #include <boost/geometry/core/coordinate_dimension.hpp>
Chris@16: #include <boost/geometry/core/coordinate_type.hpp>
Chris@16: #include <boost/geometry/core/tags.hpp>
Chris@16: 
Chris@16: #include <boost/array.hpp>
Chris@16: 
Chris@16: namespace boost { namespace geometry
Chris@16: {
Chris@16: 
Chris@16: 
Chris@16: #ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS
Chris@16: namespace traits
Chris@16: {
Chris@16: 
Chris@16: 
Chris@16: #ifndef DOXYGEN_NO_DETAIL
Chris@16: namespace detail
Chris@16: {
Chris@16: 
Chris@16: 
Chris@16: // Create class and specialization to indicate the tag
Chris@16: // for normal cases and the case that the type of the c-array is arithmetic
Chris@16: template <bool>
Chris@16: struct boost_array_tag
Chris@16: {
Chris@16:     typedef geometry_not_recognized_tag type;
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template <>
Chris@16: struct boost_array_tag<true>
Chris@16: {
Chris@16:     typedef point_tag type;
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: } // namespace detail
Chris@16: #endif // DOXYGEN_NO_DETAIL
Chris@16: 
Chris@16: 
Chris@16: // Assign the point-tag, preventing arrays of points getting a point-tag
Chris@16: template <typename CoordinateType, std::size_t DimensionCount>
Chris@16: struct tag<boost::array<CoordinateType, DimensionCount> >
Chris@16:     : detail::boost_array_tag<boost::is_arithmetic<CoordinateType>::value> {};
Chris@16: 
Chris@16: 
Chris@16: template <typename CoordinateType, std::size_t DimensionCount>
Chris@16: struct coordinate_type<boost::array<CoordinateType, DimensionCount> >
Chris@16: {
Chris@16:     typedef CoordinateType type;
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template <typename CoordinateType, std::size_t DimensionCount>
Chris@16: struct dimension<boost::array<CoordinateType, DimensionCount> >: boost::mpl::int_<DimensionCount> {};
Chris@16: 
Chris@16: 
Chris@16: template <typename CoordinateType, std::size_t DimensionCount, std::size_t Dimension>
Chris@16: struct access<boost::array<CoordinateType, DimensionCount>, Dimension>
Chris@16: {
Chris@16:     static inline CoordinateType get(boost::array<CoordinateType, DimensionCount> const& a)
Chris@16:     {
Chris@16:         return a[Dimension];
Chris@16:     }
Chris@16: 
Chris@16:     static inline void set(boost::array<CoordinateType, DimensionCount>& a,
Chris@16:         CoordinateType const& value)
Chris@16:     {
Chris@16:         a[Dimension] = value;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: } // namespace traits
Chris@16: #endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS
Chris@16: 
Chris@16: 
Chris@16: }} // namespace boost::geometry
Chris@16: 
Chris@16: 
Chris@16: #define BOOST_GEOMETRY_REGISTER_BOOST_ARRAY_CS(CoordinateSystem) \
Chris@16:     namespace boost { namespace geometry { namespace traits { \
Chris@16:     template <class T, std::size_t N> \
Chris@16:     struct coordinate_system<boost::array<T, N> > \
Chris@16:     { \
Chris@16:         typedef CoordinateSystem type; \
Chris@16:     }; \
Chris@16:     }}}
Chris@16: 
Chris@16: 
Chris@16: #endif // BOOST_GEOMETRY_GEOMETRIES_ADAPTED_BOOST_ARRAY_HPP
Chris@16: