173 lines
3.7 KiB
C++
173 lines
3.7 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_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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