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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
- // Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
- // This file was modified by Oracle on 2015, 2016, 2017, 2018.
- // Modifications copyright (c) 2015-2018, Oracle and/or its affiliates.
- // Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
- // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
- // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
- // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
- // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
- // Distributed under 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_ALGORITHMS_DETAIL_ENVELOPE_INTERFACE_HPP
- #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_INTERFACE_HPP
- #include <boost/variant/apply_visitor.hpp>
- #include <boost/variant/static_visitor.hpp>
- #include <boost/variant/variant_fwd.hpp>
- #include <boost/geometry/algorithms/dispatch/envelope.hpp>
- #include <boost/geometry/core/coordinate_system.hpp>
- #include <boost/geometry/core/tag.hpp>
- #include <boost/geometry/core/tags.hpp>
- #include <boost/geometry/geometries/concepts/check.hpp>
- #include <boost/geometry/strategies/default_strategy.hpp>
- #include <boost/geometry/strategies/envelope.hpp>
- #include <boost/geometry/util/select_most_precise.hpp>
- namespace boost { namespace geometry
- {
- namespace resolve_strategy
- {
- template <typename Geometry>
- struct envelope
- {
- template <typename Box, typename Strategy>
- static inline void apply(Geometry const& geometry,
- Box& box,
- Strategy const& strategy)
- {
- dispatch::envelope<Geometry>::apply(geometry, box, strategy);
- }
- template <typename Box>
- static inline void apply(Geometry const& geometry,
- Box& box,
- default_strategy)
- {
- typedef typename strategy::envelope::services::default_strategy
- <
- typename tag<Geometry>::type,
- typename cs_tag<Geometry>::type,
- typename select_most_precise
- <
- typename coordinate_type<Geometry>::type,
- typename coordinate_type<Box>::type
- >::type
- >::type strategy_type;
- dispatch::envelope<Geometry>::apply(geometry, box, strategy_type());
- }
- };
- } // namespace resolve_strategy
- namespace resolve_variant
- {
- template <typename Geometry>
- struct envelope
- {
- template <typename Box, typename Strategy>
- static inline void apply(Geometry const& geometry,
- Box& box,
- Strategy const& strategy)
- {
- concepts::check<Geometry const>();
- concepts::check<Box>();
- resolve_strategy::envelope<Geometry>::apply(geometry, box, strategy);
- }
- };
- template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
- struct envelope<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
- {
- template <typename Box, typename Strategy>
- struct visitor: boost::static_visitor<void>
- {
- Box& m_box;
- Strategy const& m_strategy;
- visitor(Box& box, Strategy const& strategy)
- : m_box(box)
- , m_strategy(strategy)
- {}
- template <typename Geometry>
- void operator()(Geometry const& geometry) const
- {
- envelope<Geometry>::apply(geometry, m_box, m_strategy);
- }
- };
- template <typename Box, typename Strategy>
- static inline void
- apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry,
- Box& box,
- Strategy const& strategy)
- {
- boost::apply_visitor(visitor<Box, Strategy>(box, strategy), geometry);
- }
- };
- } // namespace resolve_variant
- /*!
- \brief \brief_calc{envelope (with strategy)}
- \ingroup envelope
- \details \details_calc{envelope,\det_envelope}.
- \tparam Geometry \tparam_geometry
- \tparam Box \tparam_box
- \tparam Strategy \tparam_strategy{Envelope}
- \param geometry \param_geometry
- \param mbr \param_box \param_set{envelope}
- \param strategy \param_strategy{envelope}
- \qbk{distinguish,with strategy}
- \qbk{[include reference/algorithms/envelope.qbk]}
- \qbk{
- [heading Example]
- [envelope] [envelope_output]
- }
- */
- template<typename Geometry, typename Box, typename Strategy>
- inline void envelope(Geometry const& geometry, Box& mbr, Strategy const& strategy)
- {
- resolve_variant::envelope<Geometry>::apply(geometry, mbr, strategy);
- }
- /*!
- \brief \brief_calc{envelope}
- \ingroup envelope
- \details \details_calc{envelope,\det_envelope}.
- \tparam Geometry \tparam_geometry
- \tparam Box \tparam_box
- \param geometry \param_geometry
- \param mbr \param_box \param_set{envelope}
- \qbk{[include reference/algorithms/envelope.qbk]}
- \qbk{
- [heading Example]
- [envelope] [envelope_output]
- }
- */
- template<typename Geometry, typename Box>
- inline void envelope(Geometry const& geometry, Box& mbr)
- {
- resolve_variant::envelope<Geometry>::apply(geometry, mbr, default_strategy());
- }
- /*!
- \brief \brief_calc{envelope}
- \ingroup envelope
- \details \details_calc{return_envelope,\det_envelope}. \details_return{envelope}
- \tparam Box \tparam_box
- \tparam Geometry \tparam_geometry
- \tparam Strategy \tparam_strategy{Envelope}
- \param geometry \param_geometry
- \param strategy \param_strategy{envelope}
- \return \return_calc{envelope}
- \qbk{distinguish,with strategy}
- \qbk{[include reference/algorithms/envelope.qbk]}
- \qbk{
- [heading Example]
- [return_envelope] [return_envelope_output]
- }
- */
- template<typename Box, typename Geometry, typename Strategy>
- inline Box return_envelope(Geometry const& geometry, Strategy const& strategy)
- {
- Box mbr;
- resolve_variant::envelope<Geometry>::apply(geometry, mbr, strategy);
- return mbr;
- }
- /*!
- \brief \brief_calc{envelope}
- \ingroup envelope
- \details \details_calc{return_envelope,\det_envelope}. \details_return{envelope}
- \tparam Box \tparam_box
- \tparam Geometry \tparam_geometry
- \param geometry \param_geometry
- \return \return_calc{envelope}
- \qbk{[include reference/algorithms/envelope.qbk]}
- \qbk{
- [heading Example]
- [return_envelope] [return_envelope_output]
- }
- */
- template<typename Box, typename Geometry>
- inline Box return_envelope(Geometry const& geometry)
- {
- Box mbr;
- resolve_variant::envelope<Geometry>::apply(geometry, mbr, default_strategy());
- return mbr;
- }
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_ENVELOPE_INTERFACE_HPP
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