Added boost header
This commit is contained in:
Christophe Riccio
281
test/external/boost/geometry/arithmetic/arithmetic.hpp
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281
test/external/boost/geometry/arithmetic/arithmetic.hpp
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// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
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// Copyright (c) 2008-2011 Barend Gehrels, Amsterdam, the Netherlands.
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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_ARITHMETIC_ARITHMETIC_HPP
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#define BOOST_GEOMETRY_ARITHMETIC_ARITHMETIC_HPP
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#include <functional>
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#include <boost/call_traits.hpp>
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#include <boost/concept/requires.hpp>
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#include <boost/geometry/core/coordinate_type.hpp>
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#include <boost/geometry/geometries/concepts/point_concept.hpp>
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#include <boost/geometry/util/for_each_coordinate.hpp>
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namespace boost { namespace geometry
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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 <typename P>
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struct param
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{
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typedef typename boost::call_traits
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<
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typename coordinate_type<P>::type
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>::param_type type;
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};
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template <typename C, template <typename> class Function>
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struct value_operation
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{
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C m_value;
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inline value_operation(C const &value)
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: m_value(value)
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{}
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template <typename P, int I>
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inline void apply(P& point) const
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{
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set<I>(point, Function<C>()(get<I>(point), m_value));
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}
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};
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template <typename PointSrc, template <typename> class Function>
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struct point_operation
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{
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typedef typename coordinate_type<PointSrc>::type coordinate_type;
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PointSrc const& m_source_point;
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inline point_operation(PointSrc const& point)
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: m_source_point(point)
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{}
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template <typename PointDst, int I>
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inline void apply(PointDst& dest_point) const
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{
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set<I>(dest_point,
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Function<coordinate_type>()(get<I>(dest_point), get<I>(m_source_point)));
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}
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};
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template <typename C>
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struct value_assignment
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{
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C m_value;
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inline value_assignment(C const &value)
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: m_value(value)
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{}
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template <typename P, int I>
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inline void apply(P& point) const
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{
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set<I>(point, m_value);
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}
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};
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template <typename PointSrc>
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struct point_assignment
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{
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PointSrc const& m_source_point;
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inline point_assignment(PointSrc const& point)
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: m_source_point(point)
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{}
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template <typename PointDst, int I>
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inline void apply(PointDst& dest_point) const
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{
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set<I>(dest_point, get<I>(m_source_point));
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}
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};
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} // namespace detail
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#endif // DOXYGEN_NO_DETAIL
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/*!
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\brief Adds the same value to each coordinate of a point
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\ingroup arithmetic
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\details
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\param p point
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\param value value to add
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*/
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template <typename Point>
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inline void add_value(Point& p, typename detail::param<Point>::type value)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point>) );
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for_each_coordinate(p, detail::value_operation<typename coordinate_type<Point>::type, std::plus>(value));
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}
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/*!
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\brief Adds a point to another
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\ingroup arithmetic
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\details The coordinates of the second point will be added to those of the first point.
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The second point is not modified.
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\param p1 first point
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\param p2 second point
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*/
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template <typename Point1, typename Point2>
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inline void add_point(Point1& p1, Point2 const& p2)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point2>) );
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BOOST_CONCEPT_ASSERT( (concept::ConstPoint<Point2>) );
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for_each_coordinate(p1, detail::point_operation<Point2, std::plus>(p2));
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}
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/*!
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\brief Subtracts the same value to each coordinate of a point
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\ingroup arithmetic
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\details
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\param p point
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\param value value to subtract
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*/
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template <typename Point>
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inline void subtract_value(Point& p, typename detail::param<Point>::type value)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point>) );
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for_each_coordinate(p, detail::value_operation<typename coordinate_type<Point>::type, std::minus>(value));
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}
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/*!
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\brief Subtracts a point to another
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\ingroup arithmetic
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\details The coordinates of the second point will be subtracted to those of the first point.
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The second point is not modified.
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\param p1 first point
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\param p2 second point
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*/
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template <typename Point1, typename Point2>
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inline void subtract_point(Point1& p1, Point2 const& p2)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point2>) );
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BOOST_CONCEPT_ASSERT( (concept::ConstPoint<Point2>) );
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for_each_coordinate(p1, detail::point_operation<Point2, std::minus>(p2));
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}
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/*!
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\brief Multiplies each coordinate of a point by the same value
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\ingroup arithmetic
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\details
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\param p point
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\param value value to multiply by
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*/
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template <typename Point>
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inline void multiply_value(Point& p, typename detail::param<Point>::type value)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point>) );
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for_each_coordinate(p, detail::value_operation<typename coordinate_type<Point>::type, std::multiplies>(value));
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}
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/*!
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\brief Multiplies a point by another
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\ingroup arithmetic
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\details The coordinates of the first point will be multiplied by those of the second point.
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The second point is not modified.
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\param p1 first point
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\param p2 second point
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\note This is *not* a dot, cross or wedge product. It is a mere field-by-field multiplication.
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*/
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template <typename Point1, typename Point2>
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inline void multiply_point(Point1& p1, Point2 const& p2)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point2>) );
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BOOST_CONCEPT_ASSERT( (concept::ConstPoint<Point2>) );
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for_each_coordinate(p1, detail::point_operation<Point2, std::multiplies>(p2));
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}
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/*!
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\brief Divides each coordinate of the same point by a value
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\ingroup arithmetic
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\details
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\param p point
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\param value value to divide by
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*/
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template <typename Point>
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inline void divide_value(Point& p, typename detail::param<Point>::type value)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point>) );
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for_each_coordinate(p, detail::value_operation<typename coordinate_type<Point>::type, std::divides>(value));
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}
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/*!
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\brief Divides a point by another
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\ingroup arithmetic
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\details The coordinates of the first point will be divided by those of the second point.
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The second point is not modified.
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\param p1 first point
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\param p2 second point
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*/
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template <typename Point1, typename Point2>
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inline void divide_point(Point1& p1, Point2 const& p2)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point2>) );
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BOOST_CONCEPT_ASSERT( (concept::ConstPoint<Point2>) );
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for_each_coordinate(p1, detail::point_operation<Point2, std::divides>(p2));
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}
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/*!
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\brief Assign each coordinate of a point the same value
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\ingroup arithmetic
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\details
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\param p point
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\param value value to assign
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*/
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template <typename Point>
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inline void assign_value(Point& p, typename detail::param<Point>::type value)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point>) );
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for_each_coordinate(p, detail::value_assignment<typename coordinate_type<Point>::type>(value));
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}
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/*!
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\brief Assign a point with another
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\ingroup arithmetic
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\details The coordinates of the first point will be assigned those of the second point.
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The second point is not modified.
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\param p1 first point
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\param p2 second point
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*/
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template <typename Point1, typename Point2>
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inline void assign_point(Point1& p1, const Point2& p2)
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{
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BOOST_CONCEPT_ASSERT( (concept::Point<Point2>) );
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BOOST_CONCEPT_ASSERT( (concept::ConstPoint<Point2>) );
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for_each_coordinate(p1, detail::point_assignment<Point2>(p2));
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}
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ARITHMETIC_ARITHMETIC_HPP
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82
test/external/boost/geometry/arithmetic/dot_product.hpp
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82
test/external/boost/geometry/arithmetic/dot_product.hpp
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@@ -0,0 +1,82 @@
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// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
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// Copyright (c) 2008-2011 Barend Gehrels, Amsterdam, the Netherlands.
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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_ARITHMETIC_DOT_PRODUCT_HPP
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#define BOOST_GEOMETRY_ARITHMETIC_DOT_PRODUCT_HPP
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#include <cstddef>
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#include <boost/concept/requires.hpp>
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#include <boost/geometry/geometries/concepts/point_concept.hpp>
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#include <boost/geometry/util/select_coordinate_type.hpp>
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namespace boost { namespace geometry
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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 <typename P1, typename P2, std::size_t Dimension, std::size_t DimensionCount>
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struct dot_product_maker
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{
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typedef typename select_coordinate_type<P1, P2>::type coordinate_type;
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static inline coordinate_type apply(P1 const& p1, P2 const& p2)
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{
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return get<Dimension>(p1) * get<Dimension>(p2)
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+ dot_product_maker<P1, P2, Dimension+1, DimensionCount>::apply(p1, p2);
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}
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};
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template <typename P1, typename P2, std::size_t DimensionCount>
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struct dot_product_maker<P1, P2, DimensionCount, DimensionCount>
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{
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typedef typename select_coordinate_type<P1, P2>::type coordinate_type;
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static inline coordinate_type apply(P1 const& p1, P2 const& p2)
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{
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return get<DimensionCount>(p1) * get<DimensionCount>(p2);
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}
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};
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} // namespace detail
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#endif // DOXYGEN_NO_DETAIL
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/*!
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\brief Computes the dot product (or scalar product) of 2 vectors (points).
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\ingroup arithmetic
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\param p1 first point
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\param p2 second point
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\return the dot product
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*/
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template <typename P1, typename P2>
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inline typename select_coordinate_type<P1, P2>::type dot_product(
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P1 const& p1, P2 const& p2)
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{
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BOOST_CONCEPT_ASSERT( (concept::ConstPoint<P1>) );
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BOOST_CONCEPT_ASSERT( (concept::ConstPoint<P2>) );
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return detail::dot_product_maker
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<
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P1, P2,
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0, dimension<P1>::type::value - 1
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>::apply(p1, p2);
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}
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ARITHMETIC_DOT_PRODUCT_HPP
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