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176 lines
4.3 KiB
176 lines
4.3 KiB
// 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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