123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164 |
- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
- // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
- // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
- // (geolib/GGL), copyright (c) 1995-2010 Geodan, 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_CORE_INTERIOR_TYPE_HPP
- #define BOOST_GEOMETRY_CORE_INTERIOR_TYPE_HPP
- #include <boost/mpl/assert.hpp>
- #include <boost/mpl/if.hpp>
- #include <boost/type_traits/is_const.hpp>
- #include <boost/type_traits/remove_const.hpp>
- #include <boost/type_traits/remove_reference.hpp>
- #include <boost/geometry/core/tag.hpp>
- #include <boost/geometry/core/tags.hpp>
- namespace boost { namespace geometry
- {
- namespace traits
- {
- /*!
- \brief Traits class indicating interior container type of a polygon
- \details defines inner container type, so the container containing
- the interior rings
- \ingroup traits
- \par Geometries:
- - polygon
- \par Specializations should provide:
- - typedef X type ( e.g. std::vector<myring<P>> )
- \tparam Geometry geometry
- */
- template <typename Geometry>
- struct interior_const_type
- {
- BOOST_MPL_ASSERT_MSG
- (
- false, NOT_IMPLEMENTED_FOR_THIS_GEOMETRY_TYPE
- , (types<Geometry>)
- );
- };
- template <typename Geometry>
- struct interior_mutable_type
- {
- BOOST_MPL_ASSERT_MSG
- (
- false, NOT_IMPLEMENTED_FOR_THIS_GEOMETRY_TYPE
- , (types<Geometry>)
- );
- };
- } // namespace traits
- #ifndef DOXYGEN_NO_DISPATCH
- namespace core_dispatch
- {
- template <typename GeometryTag, typename Geometry>
- struct interior_return_type
- {
- BOOST_MPL_ASSERT_MSG
- (
- false, NOT_IMPLEMENTED_FOR_THIS_GEOMETRY_TYPE
- , (types<Geometry>)
- );
- };
- template <typename Polygon>
- struct interior_return_type<polygon_tag, Polygon>
- {
- typedef typename boost::remove_const<Polygon>::type nc_polygon_type;
- typedef typename boost::mpl::if_
- <
- boost::is_const<Polygon>,
- typename traits::interior_const_type<nc_polygon_type>::type,
- typename traits::interior_mutable_type<nc_polygon_type>::type
- >::type type;
- };
- template <typename GeometryTag, typename Geometry>
- struct interior_type
- {
- BOOST_MPL_ASSERT_MSG
- (
- false, NOT_IMPLEMENTED_FOR_THIS_GEOMETRY_TYPE
- , (types<Geometry>)
- );
- };
- template <typename Polygon>
- struct interior_type<polygon_tag, Polygon>
- {
- typedef typename boost::remove_reference
- <
- typename interior_return_type<polygon_tag, Polygon>::type
- >::type type;
- };
- } // namespace core_dispatch
- #endif
- /*!
- \brief \brief_meta{type, interior_type (container type
- of inner rings), \meta_geometry_type}
- \details Interior rings should be organized as a container
- (std::vector, std::deque, boost::array) with
- Boost.Range support. This metafunction defines the type
- of the container.
- \tparam Geometry A type fullfilling the Polygon or MultiPolygon concept.
- \ingroup core
- \qbk{[include reference/core/interior_type.qbk]}
- */
- template <typename Geometry>
- struct interior_type
- {
- typedef typename core_dispatch::interior_type
- <
- typename tag<Geometry>::type,
- Geometry
- >::type type;
- };
- template <typename Geometry>
- struct interior_return_type
- {
- typedef typename core_dispatch::interior_return_type
- <
- typename tag<Geometry>::type,
- Geometry
- >::type type;
- };
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_CORE_INTERIOR_TYPE_HPP
|