126 lines
3.3 KiB
C++
126 lines
3.3 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
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// Copyright (c) 2014-2015 Samuel Debionne, Grenoble, France.
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// This file was modified by Oracle on 2015-2018.
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// Modifications copyright (c) 2015-2018, Oracle and/or its affiliates.
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// Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
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// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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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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// Distributed under the Boost Software License, Version 1.0.
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// (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_STRATEGY_CARTESIAN_EXPAND_POINT_HPP
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#define BOOST_GEOMETRY_STRATEGY_CARTESIAN_EXPAND_POINT_HPP
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#include <cstddef>
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#include <functional>
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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/core/coordinate_system.hpp>
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#include <boost/geometry/core/coordinate_type.hpp>
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#include <boost/geometry/core/tags.hpp>
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#include <boost/geometry/util/select_coordinate_type.hpp>
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#include <boost/geometry/strategy/expand.hpp>
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namespace boost { namespace geometry
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{
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namespace strategy { namespace expand
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{
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail
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{
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template <std::size_t Dimension, std::size_t DimensionCount>
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struct point_loop
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{
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template <typename Box, typename Point>
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static inline void apply(Box& box, Point const& source)
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{
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typedef typename select_coordinate_type
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<
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Point, Box
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>::type coordinate_type;
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std::less<coordinate_type> less;
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std::greater<coordinate_type> greater;
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coordinate_type const coord = get<Dimension>(source);
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if (less(coord, get<min_corner, Dimension>(box)))
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{
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set<min_corner, Dimension>(box, coord);
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}
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if (greater(coord, get<max_corner, Dimension>(box)))
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{
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set<max_corner, Dimension>(box, coord);
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}
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point_loop<Dimension + 1, DimensionCount>::apply(box, source);
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}
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};
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template <std::size_t DimensionCount>
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struct point_loop<DimensionCount, DimensionCount>
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{
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template <typename Box, typename Point>
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static inline void apply(Box&, Point const&) {}
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};
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} // namespace detail
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#endif // DOXYGEN_NO_DETAIL
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struct cartesian_point
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{
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template <typename Box, typename Point>
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static void apply(Box & box, Point const& point)
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{
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expand::detail::point_loop
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<
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0, dimension<Point>::value
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>::apply(box, point);
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}
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};
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#ifndef DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
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namespace services
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{
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template <typename CalculationType>
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struct default_strategy<point_tag, cartesian_tag, CalculationType>
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{
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typedef cartesian_point type;
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};
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} // namespace services
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#endif // DOXYGEN_NO_STRATEGY_SPECIALIZATIONS
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}} // namespace strategy::expand
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_STRATEGY_CARTESIAN_EXPAND_POINT_HPP
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