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172 lines
3.7 KiB
172 lines
3.7 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_POINT_IN_BOX_HPP |
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#define BOOST_GEOMETRY_STRATEGIES_CARTESIAN_POINT_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 within_range |
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{ |
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template <typename Value1, typename Value2> |
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static inline bool apply(Value1 const& value, Value2 const& min_value, Value2 const& max_value) |
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{ |
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return value > min_value && value < max_value; |
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} |
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}; |
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struct covered_by_range |
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{ |
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template <typename Value1, typename Value2> |
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static inline bool apply(Value1 const& value, Value2 const& min_value, Value2 const& max_value) |
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{ |
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return value >= min_value && value <= max_value; |
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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 Point, |
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typename Box, |
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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_point_box_loop |
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{ |
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static inline bool apply(Point const& point, Box const& box) |
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{ |
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if (! SubStrategy::apply(get<Dimension>(point), |
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get<min_corner, Dimension>(box), |
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get<max_corner, Dimension>(box)) |
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) |
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{ |
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return false; |
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} |
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return relate_point_box_loop |
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< |
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SubStrategy, |
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Point, Box, |
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Dimension + 1, DimensionCount |
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>::apply(point, box); |
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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 Point, |
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typename Box, |
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std::size_t DimensionCount |
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> |
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struct relate_point_box_loop<SubStrategy, Point, Box, DimensionCount, DimensionCount> |
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{ |
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static inline bool apply(Point const& , Box 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 Point, |
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typename Box, |
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typename SubStrategy = within_range |
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> |
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struct point_in_box |
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{ |
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static inline bool apply(Point const& point, Box const& box) |
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{ |
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return relate_point_box_loop |
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< |
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SubStrategy, |
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Point, Box, |
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0, dimension<Point>::type::value |
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>::apply(point, box); |
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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 Point, typename Box> |
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struct default_strategy |
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< |
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point_tag, box_tag, |
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point_tag, areal_tag, |
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cartesian_tag, cartesian_tag, |
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Point, Box |
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> |
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{ |
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typedef within::point_in_box<Point, Box> 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 Point, typename Box> |
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struct default_strategy |
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< |
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point_tag, box_tag, |
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point_tag, areal_tag, |
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cartesian_tag, cartesian_tag, |
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Point, Box |
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> |
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{ |
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typedef within::point_in_box |
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< |
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Point, Box, |
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within::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_POINT_IN_BOX_HPP
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