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Diffstat (limited to 'boost/geometry/algorithms/expand.hpp')
| -rw-r--r-- | boost/geometry/algorithms/expand.hpp | 348 |
1 files changed, 13 insertions, 335 deletions
diff --git a/boost/geometry/algorithms/expand.hpp b/boost/geometry/algorithms/expand.hpp index 9dc0a48e06..f41df53801 100644 --- a/boost/geometry/algorithms/expand.hpp +++ b/boost/geometry/algorithms/expand.hpp @@ -1,348 +1,26 @@ // Boost.Geometry (aka GGL, Generic Geometry Library) -// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands. -// Copyright (c) 2008-2012 Bruno Lalande, Paris, France. -// Copyright (c) 2009-2012 Mateusz Loskot, London, UK. -// Copyright (c) 2014 Samuel Debionne, Grenoble, France. +// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands. +// Copyright (c) 2008-2015 Bruno Lalande, Paris, France. +// Copyright (c) 2009-2015 Mateusz Loskot, London, UK. +// Copyright (c) 2014-2015 Samuel Debionne, Grenoble, France. + +// This file was modified by Oracle on 2015. +// Modifications copyright (c) 2015, Oracle and/or its affiliates. + +// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. -// Use, modification and distribution is subject to the Boost Software License, -// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #ifndef BOOST_GEOMETRY_ALGORITHMS_EXPAND_HPP #define BOOST_GEOMETRY_ALGORITHMS_EXPAND_HPP - -#include <cstddef> - -#include <boost/numeric/conversion/cast.hpp> - -#include <boost/variant/apply_visitor.hpp> -#include <boost/variant/static_visitor.hpp> -#include <boost/variant/variant_fwd.hpp> - -#include <boost/geometry/algorithms/not_implemented.hpp> -#include <boost/geometry/core/coordinate_dimension.hpp> -#include <boost/geometry/geometries/concepts/check.hpp> - -#include <boost/geometry/util/select_coordinate_type.hpp> - -#include <boost/geometry/strategies/compare.hpp> -#include <boost/geometry/policies/compare.hpp> - - -namespace boost { namespace geometry -{ - -#ifndef DOXYGEN_NO_DETAIL -namespace detail { namespace expand -{ - - -template -< - typename StrategyLess, typename StrategyGreater, - std::size_t Dimension, std::size_t DimensionCount -> -struct point_loop -{ - template <typename Box, typename Point> - static inline void apply(Box& box, Point const& source) - { - typedef typename strategy::compare::detail::select_strategy - < - StrategyLess, 1, Point, Dimension - >::type less_type; - - typedef typename strategy::compare::detail::select_strategy - < - StrategyGreater, -1, Point, Dimension - >::type greater_type; - - typedef typename select_coordinate_type<Point, Box>::type coordinate_type; - - less_type less; - greater_type greater; - - coordinate_type const coord = get<Dimension>(source); - - if (less(coord, get<min_corner, Dimension>(box))) - { - set<min_corner, Dimension>(box, coord); - } - - if (greater(coord, get<max_corner, Dimension>(box))) - { - set<max_corner, Dimension>(box, coord); - } - - point_loop - < - StrategyLess, StrategyGreater, - Dimension + 1, DimensionCount - >::apply(box, source); - } -}; - - -template -< - typename StrategyLess, typename StrategyGreater, - std::size_t DimensionCount -> -struct point_loop - < - StrategyLess, StrategyGreater, - DimensionCount, DimensionCount - > -{ - template <typename Box, typename Point> - static inline void apply(Box&, Point const&) {} -}; - - -template -< - typename StrategyLess, typename StrategyGreater, - std::size_t Index, - std::size_t Dimension, std::size_t DimensionCount -> -struct indexed_loop -{ - template <typename Box, typename Geometry> - static inline void apply(Box& box, Geometry const& source) - { - typedef typename strategy::compare::detail::select_strategy - < - StrategyLess, 1, Box, Dimension - >::type less_type; - - typedef typename strategy::compare::detail::select_strategy - < - StrategyGreater, -1, Box, Dimension - >::type greater_type; - - typedef typename select_coordinate_type - < - Box, - Geometry - >::type coordinate_type; - - less_type less; - greater_type greater; - - coordinate_type const coord = get<Index, Dimension>(source); - - if (less(coord, get<min_corner, Dimension>(box))) - { - set<min_corner, Dimension>(box, coord); - } - - if (greater(coord, get<max_corner, Dimension>(box))) - { - set<max_corner, Dimension>(box, coord); - } - - indexed_loop - < - StrategyLess, StrategyGreater, - Index, Dimension + 1, DimensionCount - >::apply(box, source); - } -}; - - -template -< - typename StrategyLess, typename StrategyGreater, - std::size_t Index, std::size_t DimensionCount -> -struct indexed_loop - < - StrategyLess, StrategyGreater, - Index, DimensionCount, DimensionCount - > -{ - template <typename Box, typename Geometry> - static inline void apply(Box&, Geometry const&) {} -}; - - - -// Changes a box such that the other box is also contained by the box -template -< - typename StrategyLess, typename StrategyGreater -> -struct expand_indexed -{ - template <typename Box, typename Geometry> - static inline void apply(Box& box, Geometry const& geometry) - { - indexed_loop - < - StrategyLess, StrategyGreater, - 0, 0, dimension<Geometry>::type::value - >::apply(box, geometry); - - indexed_loop - < - StrategyLess, StrategyGreater, - 1, 0, dimension<Geometry>::type::value - >::apply(box, geometry); - } -}; - -}} // namespace detail::expand -#endif // DOXYGEN_NO_DETAIL - -#ifndef DOXYGEN_NO_DISPATCH -namespace dispatch -{ - -template -< - typename GeometryOut, typename Geometry, - typename StrategyLess = strategy::compare::default_strategy, - typename StrategyGreater = strategy::compare::default_strategy, - typename TagOut = typename tag<GeometryOut>::type, - typename Tag = typename tag<Geometry>::type -> -struct expand: not_implemented<TagOut, Tag> -{}; - - -// Box + point -> new box containing also point -template -< - typename BoxOut, typename Point, - typename StrategyLess, typename StrategyGreater -> -struct expand<BoxOut, Point, StrategyLess, StrategyGreater, box_tag, point_tag> - : detail::expand::point_loop - < - StrategyLess, StrategyGreater, - 0, dimension<Point>::type::value - > -{}; - - -// Box + box -> new box containing two input boxes -template -< - typename BoxOut, typename BoxIn, - typename StrategyLess, typename StrategyGreater -> -struct expand<BoxOut, BoxIn, StrategyLess, StrategyGreater, box_tag, box_tag> - : detail::expand::expand_indexed<StrategyLess, StrategyGreater> -{}; - -template -< - typename Box, typename Segment, - typename StrategyLess, typename StrategyGreater -> -struct expand<Box, Segment, StrategyLess, StrategyGreater, box_tag, segment_tag> - : detail::expand::expand_indexed<StrategyLess, StrategyGreater> -{}; - - -} // namespace dispatch -#endif // DOXYGEN_NO_DISPATCH - - -namespace resolve_variant { - -template <typename Geometry> -struct expand -{ - template <typename Box> - static inline void apply(Box& box, Geometry const& geometry) - { - concept::check<Box>(); - concept::check<Geometry const>(); - concept::check_concepts_and_equal_dimensions<Box, Geometry const>(); - - dispatch::expand<Box, Geometry>::apply(box, geometry); - } -}; - -template <BOOST_VARIANT_ENUM_PARAMS(typename T)> -struct expand<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> > -{ - template <typename Box> - struct visitor: boost::static_visitor<void> - { - Box& m_box; - - visitor(Box& box) : m_box(box) {} - - template <typename Geometry> - void operator()(Geometry const& geometry) const - { - return expand<Geometry>::apply(m_box, geometry); - } - }; - - template <class Box> - static inline void - apply(Box& box, - boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry) - { - return boost::apply_visitor(visitor<Box>(box), geometry); - } -}; - -} // namespace resolve_variant - - -/*** -*! -\brief Expands a box using the extend (envelope) of another geometry (box, point) -\ingroup expand -\tparam Box type of the box -\tparam Geometry of second geometry, to be expanded with the box -\param box box to expand another geometry with, might be changed -\param geometry other geometry -\param strategy_less -\param strategy_greater -\note Strategy is currently ignored - * -template -< - typename Box, typename Geometry, - typename StrategyLess, typename StrategyGreater -> -inline void expand(Box& box, Geometry const& geometry, - StrategyLess const& strategy_less, - StrategyGreater const& strategy_greater) -{ - concept::check_concepts_and_equal_dimensions<Box, Geometry const>(); - - dispatch::expand<Box, Geometry>::apply(box, geometry); -} -***/ - - -/*! -\brief Expands a box using the bounding box (envelope) of another geometry (box, point) -\ingroup expand -\tparam Box type of the box -\tparam Geometry \tparam_geometry -\param box box to be expanded using another geometry, mutable -\param geometry \param_geometry geometry which envelope (bounding box) will be added to the box - -\qbk{[include reference/algorithms/expand.qbk]} - */ -template <typename Box, typename Geometry> -inline void expand(Box& box, Geometry const& geometry) -{ - resolve_variant::expand<Geometry>::apply(box, geometry); -} - -}} // namespace boost::geometry +#include <boost/geometry/algorithms/detail/expand/interface.hpp> +#include <boost/geometry/algorithms/detail/expand/implementation.hpp> #endif // BOOST_GEOMETRY_ALGORITHMS_EXPAND_HPP |