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Added thirdparty: boost library
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Viacheslav Demydiuk
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// Boost.Geometry Index
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//
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// This view makes possible to treat some simple primitives as its bounding geometry
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// e.g. box, nsphere, etc.
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//
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// Copyright (c) 2014-2015 Adam Wulkiewicz, Lodz, Poland.
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//
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// This file was modified by Oracle on 2019-2020.
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// Modifications copyright (c) 2019-2020 Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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//
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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_INDEX_DETAIL_BOUNDED_VIEW_HPP
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#define BOOST_GEOMETRY_INDEX_DETAIL_BOUNDED_VIEW_HPP
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#include <boost/geometry/algorithms/envelope.hpp>
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#include <boost/geometry/core/static_assert.hpp>
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#include <boost/geometry/strategies/default_strategy.hpp>
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#include <boost/geometry/strategies/index/services.hpp>
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namespace boost { namespace geometry {
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namespace index { namespace detail {
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template <typename Geometry, typename BoundingGeometry, typename Strategy>
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struct bounded_view_base_cs_tag
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{
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typedef typename Strategy::cs_tag type;
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};
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template <typename Geometry, typename BoundingGeometry>
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struct bounded_view_base_cs_tag<Geometry, BoundingGeometry, default_strategy>
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: geometry::cs_tag<Geometry>
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{};
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template
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<
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typename Geometry,
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typename BoundingGeometry,
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typename Strategy,
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typename Tag = typename geometry::tag<Geometry>::type,
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typename BoundingTag = typename geometry::tag<BoundingGeometry>::type,
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typename CSTag = typename bounded_view_base_cs_tag
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<
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Geometry, BoundingGeometry, Strategy
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>::type
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>
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struct bounded_view_base
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{
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BOOST_GEOMETRY_STATIC_ASSERT_FALSE(
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"Not implemented for these Geometries.",
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Geometry, BoundingGeometry, Strategy, Tag, BoundingTag, CSTag);
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};
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// Segment -> Box
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template <typename Segment, typename Box, typename Strategy>
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struct bounded_view_base<Segment, Box, Strategy, segment_tag, box_tag, cartesian_tag>
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{
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public:
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typedef typename geometry::coordinate_type<Box>::type coordinate_type;
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bounded_view_base(Segment const& segment, Strategy const& )
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: m_segment(segment)
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{}
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template <std::size_t Dimension>
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inline coordinate_type get_min() const
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{
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return boost::numeric_cast<coordinate_type>(
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(std::min)( geometry::get<0, Dimension>(m_segment),
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geometry::get<1, Dimension>(m_segment) ) );
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}
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template <std::size_t Dimension>
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inline coordinate_type get_max() const
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{
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return boost::numeric_cast<coordinate_type>(
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(std::max)( geometry::get<0, Dimension>(m_segment),
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geometry::get<1, Dimension>(m_segment) ) );
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}
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private:
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Segment const& m_segment;
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};
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template <typename Segment, typename Box, typename Strategy, typename CSTag>
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struct bounded_view_base<Segment, Box, Strategy, segment_tag, box_tag, CSTag>
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{
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typedef typename geometry::coordinate_type<Box>::type coordinate_type;
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bounded_view_base(Segment const& segment, Strategy const& strategy)
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{
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geometry::envelope(segment, m_box, strategy);
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}
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template <std::size_t Dimension>
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inline coordinate_type get_min() const
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{
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return geometry::get<min_corner, Dimension>(m_box);
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}
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template <std::size_t Dimension>
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inline coordinate_type get_max() const
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{
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return geometry::get<max_corner, Dimension>(m_box);
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}
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private:
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Box m_box;
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};
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// Box -> Box
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template <typename BoxIn, typename Box, typename Strategy, typename CSTag>
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struct bounded_view_base<BoxIn, Box, Strategy, box_tag, box_tag, CSTag>
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{
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public:
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typedef typename geometry::coordinate_type<Box>::type coordinate_type;
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bounded_view_base(BoxIn const& box, Strategy const& )
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: m_box(box)
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{}
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template <std::size_t Dimension>
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inline coordinate_type get_min() const
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{
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return boost::numeric_cast<coordinate_type>(
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geometry::get<min_corner, Dimension>(m_box) );
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}
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template <std::size_t Dimension>
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inline coordinate_type get_max() const
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{
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return boost::numeric_cast<coordinate_type>(
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geometry::get<max_corner, Dimension>(m_box) );
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}
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private:
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BoxIn const& m_box;
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};
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// Point -> Box
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template <typename Point, typename Box, typename Strategy, typename CSTag>
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struct bounded_view_base<Point, Box, Strategy, point_tag, box_tag, CSTag>
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{
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public:
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typedef typename geometry::coordinate_type<Box>::type coordinate_type;
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bounded_view_base(Point const& point, Strategy const& )
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: m_point(point)
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{}
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template <std::size_t Dimension>
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inline coordinate_type get_min() const
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{
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return boost::numeric_cast<coordinate_type>(
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geometry::get<Dimension>(m_point) );
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}
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template <std::size_t Dimension>
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inline coordinate_type get_max() const
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{
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return boost::numeric_cast<coordinate_type>(
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geometry::get<Dimension>(m_point) );
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}
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private:
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Point const& m_point;
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};
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template <typename Geometry,
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typename BoundingGeometry,
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typename Strategy,
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typename Tag = typename geometry::tag<Geometry>::type,
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typename BoundingTag = typename geometry::tag<BoundingGeometry>::type>
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struct bounded_view
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: bounded_view_base<Geometry, BoundingGeometry, Strategy>
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{
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typedef bounded_view_base<Geometry, BoundingGeometry, Strategy> base_type;
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bounded_view(Geometry const& geometry, Strategy const& strategy)
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: base_type(geometry, strategy)
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{}
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};
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template <typename Geometry,
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typename BoundingGeometry,
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typename Tag,
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typename BoundingTag>
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struct bounded_view<Geometry, BoundingGeometry, default_strategy, Tag, BoundingTag>
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: bounded_view_base
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<
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Geometry,
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BoundingGeometry,
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typename strategies::index::services::default_strategy<Geometry>::type
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>
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{
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typedef typename strategies::index::services::default_strategy
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<
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Geometry
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>::type strategy_type;
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typedef bounded_view_base
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<
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Geometry,
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BoundingGeometry,
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strategy_type
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> base_type;
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explicit bounded_view(Geometry const& geometry, default_strategy const& )
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: base_type(geometry, strategy_type())
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{}
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};
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}} // namespace index::detail
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// XXX -> Box
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#ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS
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namespace traits
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{
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template <typename Geometry, typename Box, typename Strategy, typename Tag>
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struct tag< index::detail::bounded_view<Geometry, Box, Strategy, Tag, box_tag> >
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{
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typedef box_tag type;
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};
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template <typename Geometry, typename Box, typename Strategy, typename Tag>
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struct point_type< index::detail::bounded_view<Geometry, Box, Strategy, Tag, box_tag> >
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{
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typedef typename point_type<Box>::type type;
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};
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template <typename Geometry, typename Box, typename Strategy, typename Tag, std::size_t Dimension>
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struct indexed_access<index::detail::bounded_view<Geometry, Box, Strategy, Tag, box_tag>,
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min_corner, Dimension>
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{
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typedef index::detail::bounded_view<Geometry, Box, Strategy, Tag, box_tag> box_type;
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typedef typename geometry::coordinate_type<Box>::type coordinate_type;
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static inline coordinate_type get(box_type const& b)
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{
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return b.template get_min<Dimension>();
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}
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//static inline void set(box_type & b, coordinate_type const& value)
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//{
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// BOOST_GEOMETRY_INDEX_ASSERT(false, "unable to modify a box through view");
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//}
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};
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template <typename Geometry, typename Box, typename Strategy, typename Tag, std::size_t Dimension>
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struct indexed_access<index::detail::bounded_view<Geometry, Box, Strategy, Tag, box_tag>,
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max_corner, Dimension>
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{
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typedef index::detail::bounded_view<Geometry, Box, Strategy, Tag, box_tag> box_type;
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typedef typename geometry::coordinate_type<Box>::type coordinate_type;
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static inline coordinate_type get(box_type const& b)
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{
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return b.template get_max<Dimension>();
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}
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//static inline void set(box_type & b, coordinate_type const& value)
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//{
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// BOOST_GEOMETRY_INDEX_ASSERT(false, "unable to modify a box through view");
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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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#endif // BOOST_GEOMETRY_INDEX_DETAIL_BOUNDED_VIEW_HPP
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