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Added thirdparty: boost library
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Viacheslav Demydiuk
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// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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// Copyright (c) 2008-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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// Copyright (c) 2023 Adam Wulkiewicz, Lodz, Poland.
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// This file was modified by Oracle on 2021.
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// Modifications copyright (c) 2021 Oracle and/or its affiliates.
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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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// 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/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/algorithm.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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/*!
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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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\tparam Point \tparam_point
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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 coordinate_type<Point>::type const& value)
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{
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BOOST_CONCEPT_ASSERT( (concepts::Point<Point>) );
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detail::for_each_dimension<Point>([&](auto index)
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{
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set<index>(p, get<index>(p) + value);
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});
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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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\tparam Point1 \tparam_point
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\tparam Point2 \tparam_point
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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( (concepts::Point<Point1>) );
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BOOST_CONCEPT_ASSERT( (concepts::ConstPoint<Point2>) );
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detail::for_each_dimension<Point1>([&](auto index)
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{
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using calc_t = typename select_coordinate_type<Point1, Point2>::type;
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set<index>(p1, calc_t(get<index>(p1)) + calc_t(get<index>(p2)));
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});
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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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\tparam Point \tparam_point
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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 coordinate_type<Point>::type const& value)
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{
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BOOST_CONCEPT_ASSERT( (concepts::Point<Point>) );
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detail::for_each_dimension<Point>([&](auto index)
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{
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set<index>(p, get<index>(p) - value);
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});
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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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\tparam Point1 \tparam_point
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\tparam Point2 \tparam_point
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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( (concepts::Point<Point1>) );
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BOOST_CONCEPT_ASSERT( (concepts::ConstPoint<Point2>) );
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detail::for_each_dimension<Point1>([&](auto index)
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{
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using calc_t = typename select_coordinate_type<Point1, Point2>::type;
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set<index>(p1, calc_t(get<index>(p1)) - calc_t(get<index>(p2)));
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});
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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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\tparam Point \tparam_point
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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 coordinate_type<Point>::type const& value)
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{
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BOOST_CONCEPT_ASSERT( (concepts::Point<Point>) );
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detail::for_each_dimension<Point>([&](auto index)
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{
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set<index>(p, get<index>(p) * value);
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});
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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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\tparam Point1 \tparam_point
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\tparam Point2 \tparam_point
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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( (concepts::Point<Point1>) );
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BOOST_CONCEPT_ASSERT( (concepts::ConstPoint<Point2>) );
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detail::for_each_dimension<Point1>([&](auto index)
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{
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using calc_t = typename select_coordinate_type<Point1, Point2>::type;
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set<index>(p1, calc_t(get<index>(p1)) * calc_t(get<index>(p2)));
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});
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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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\tparam Point \tparam_point
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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 coordinate_type<Point>::type const& value)
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{
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BOOST_CONCEPT_ASSERT( (concepts::Point<Point>) );
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detail::for_each_dimension<Point>([&](auto index)
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{
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set<index>(p, get<index>(p) / value);
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});
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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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\tparam Point1 \tparam_point
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\tparam Point2 \tparam_point
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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( (concepts::Point<Point1>) );
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BOOST_CONCEPT_ASSERT( (concepts::ConstPoint<Point2>) );
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detail::for_each_dimension<Point1>([&](auto index)
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{
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using calc_t = typename select_coordinate_type<Point1, Point2>::type;
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set<index>(p1, calc_t(get<index>(p1)) / calc_t(get<index>(p2)));
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});
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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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\tparam Point \tparam_point
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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 coordinate_type<Point>::type const& value)
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{
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BOOST_CONCEPT_ASSERT( (concepts::Point<Point>) );
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detail::for_each_dimension<Point>([&](auto index)
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{
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set<index>(p, value);
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});
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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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\tparam Point1 \tparam_point
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\tparam Point2 \tparam_point
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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, Point2 const& p2)
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{
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BOOST_CONCEPT_ASSERT( (concepts::Point<Point1>) );
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BOOST_CONCEPT_ASSERT( (concepts::ConstPoint<Point2>) );
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detail::for_each_dimension<Point1>([&](auto index)
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{
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set<index>(p1, get<index>(p2));
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});
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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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