177 lines
4.3 KiB
C++
177 lines
4.3 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2011 Mateusz Loskot, London, UK.
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, 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_STRATEGIES_CARTESIAN_BOX_IN_BOX_HPP
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#define BOOST_GEOMETRY_STRATEGIES_CARTESIAN_BOX_IN_BOX_HPP
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#include <boost/geometry/core/access.hpp>
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#include <boost/geometry/core/coordinate_dimension.hpp>
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#include <boost/geometry/strategies/covered_by.hpp>
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#include <boost/geometry/strategies/within.hpp>
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namespace boost { namespace geometry { namespace strategy
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{
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namespace within
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{
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struct box_within_range
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{
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template <typename BoxContainedValue, typename BoxContainingValue>
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static inline bool apply(BoxContainedValue const& bed_min
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, BoxContainedValue const& bed_max
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, BoxContainingValue const& bing_min
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, BoxContainingValue const& bing_max)
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{
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return bed_min > bing_min && bed_max < bing_max;
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}
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};
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struct box_covered_by_range
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{
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template <typename BoxContainedValue, typename BoxContainingValue>
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static inline bool apply(BoxContainedValue const& bed_min
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, BoxContainedValue const& bed_max
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, BoxContainingValue const& bing_min
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, BoxContainingValue const& bing_max)
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{
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return bed_min >= bing_min && bed_max <= bing_max;
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}
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};
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template
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<
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typename SubStrategy,
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typename Box1,
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typename Box2,
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std::size_t Dimension,
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std::size_t DimensionCount
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>
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struct relate_box_box_loop
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{
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static inline bool apply(Box1 const& b_contained, Box2 const& b_containing)
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{
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assert_dimension_equal<Box1, Box2>();
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if (! SubStrategy::apply(
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get<min_corner, Dimension>(b_contained),
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get<max_corner, Dimension>(b_contained),
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get<min_corner, Dimension>(b_containing),
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get<max_corner, Dimension>(b_containing)
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)
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)
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{
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return false;
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}
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return relate_box_box_loop
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<
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SubStrategy,
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Box1, Box2,
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Dimension + 1, DimensionCount
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>::apply(b_contained, b_containing);
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}
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};
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template
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<
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typename SubStrategy,
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typename Box1,
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typename Box2,
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std::size_t DimensionCount
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>
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struct relate_box_box_loop<SubStrategy, Box1, Box2, DimensionCount, DimensionCount>
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{
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static inline bool apply(Box1 const& , Box2 const& )
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{
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return true;
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}
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};
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template
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<
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typename Box1,
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typename Box2,
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typename SubStrategy = box_within_range
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>
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struct box_in_box
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{
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static inline bool apply(Box1 const& box1, Box2 const& box2)
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{
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return relate_box_box_loop
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<
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SubStrategy,
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Box1, Box2, 0, dimension<Box1>::type::value
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>::apply(box1, box2);
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}
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};
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} // namespace within
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#ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
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namespace within { namespace services
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{
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template <typename BoxContained, typename BoxContaining>
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struct default_strategy
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<
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box_tag, box_tag,
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box_tag, areal_tag,
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cartesian_tag, cartesian_tag,
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BoxContained, BoxContaining
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>
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{
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typedef within::box_in_box<BoxContained, BoxContaining> type;
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};
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}} // namespace within::services
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namespace covered_by { namespace services
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{
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template <typename BoxContained, typename BoxContaining>
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struct default_strategy
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<
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box_tag, box_tag,
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box_tag, areal_tag,
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cartesian_tag, cartesian_tag,
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BoxContained, BoxContaining
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>
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{
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typedef within::box_in_box
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<
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BoxContained, BoxContaining,
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within::box_covered_by_range
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> type;
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};
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}} // namespace covered_by::services
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#endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
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}}} // namespace boost::geometry::strategy
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#endif // BOOST_GEOMETRY_STRATEGIES_CARTESIAN_BOX_IN_BOX_HPP
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