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120 lines
3.0 KiB
120 lines
3.0 KiB
// Boost.Geometry (aka GGL, Generic Geometry Library) |
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// Copyright (c) 2010 Alfredo Correa |
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// Copyright (c) 2010-2011 Barend Gehrels, Amsterdam, the Netherlands. |
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// Use, modification and distribution is subject to the Boost Software License, |
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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#ifndef BOOST_GEOMETRY_GEOMETRIES_ADAPTED_BOOST_ARRAY_HPP |
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#define BOOST_GEOMETRY_GEOMETRIES_ADAPTED_BOOST_ARRAY_HPP |
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#ifdef BOOST_GEOMETRY_ADAPTED_BOOST_ARRAY_TAG_DEFINED |
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#error Include either "boost_array_as_point" or \ |
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"boost_array_as_linestring" or "boost_array_as_ring" \ |
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or "boost_array_as_multi_point" to adapt a boost_array |
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#endif |
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#define BOOST_GEOMETRY_ADAPTED_BOOST_ARRAY_TAG_DEFINED |
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#include <cstddef> |
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#include <boost/type_traits/is_arithmetic.hpp> |
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#include <boost/geometry/core/access.hpp> |
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#include <boost/geometry/core/cs.hpp> |
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#include <boost/geometry/core/coordinate_dimension.hpp> |
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#include <boost/geometry/core/coordinate_type.hpp> |
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#include <boost/geometry/core/tags.hpp> |
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#include <boost/array.hpp> |
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namespace boost { namespace geometry |
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{ |
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#ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS |
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namespace traits |
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{ |
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#ifndef DOXYGEN_NO_DETAIL |
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namespace detail |
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{ |
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// Create class and specialization to indicate the tag |
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// for normal cases and the case that the type of the c-array is arithmetic |
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template <bool> |
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struct boost_array_tag |
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{ |
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typedef geometry_not_recognized_tag type; |
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}; |
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template <> |
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struct boost_array_tag<true> |
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{ |
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typedef point_tag type; |
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}; |
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} // namespace detail |
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#endif // DOXYGEN_NO_DETAIL |
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// Assign the point-tag, preventing arrays of points getting a point-tag |
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template <typename CoordinateType, std::size_t DimensionCount> |
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struct tag<boost::array<CoordinateType, DimensionCount> > |
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: detail::boost_array_tag<boost::is_arithmetic<CoordinateType>::value> {}; |
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template <typename CoordinateType, std::size_t DimensionCount> |
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struct coordinate_type<boost::array<CoordinateType, DimensionCount> > |
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{ |
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typedef CoordinateType type; |
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}; |
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template <typename CoordinateType, std::size_t DimensionCount> |
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struct dimension<boost::array<CoordinateType, DimensionCount> >: boost::mpl::int_<DimensionCount> {}; |
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template <typename CoordinateType, std::size_t DimensionCount, std::size_t Dimension> |
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struct access<boost::array<CoordinateType, DimensionCount>, Dimension> |
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{ |
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static inline CoordinateType get(boost::array<CoordinateType, DimensionCount> const& a) |
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{ |
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return a[Dimension]; |
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} |
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static inline void set(boost::array<CoordinateType, DimensionCount>& a, |
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CoordinateType const& value) |
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{ |
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a[Dimension] = value; |
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} |
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}; |
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} // namespace traits |
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#endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS |
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}} // namespace boost::geometry |
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#define BOOST_GEOMETRY_REGISTER_BOOST_ARRAY_CS(CoordinateSystem) \ |
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namespace boost { namespace geometry { namespace traits { \ |
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template <class T, std::size_t N> \ |
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struct coordinate_system<boost::array<T, N> > \ |
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{ \ |
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typedef CoordinateSystem type; \ |
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}; \ |
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}}} |
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#endif // BOOST_GEOMETRY_GEOMETRIES_ADAPTED_BOOST_ARRAY_HPP |
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