1 // Boost.Geometry Index 2 // 3 // boxes union/sum area/volume 4 // 5 // Copyright (c) 2008 Federico J. Fernandez. 6 // Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland. 7 // 8 // Use, modification and distribution is subject to the Boost Software License, 9 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at 10 // http://www.boost.org/LICENSE_1_0.txt) 11 12 #ifndef BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_UNION_CONTENT_HPP 13 #define BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_UNION_CONTENT_HPP 14 15 #include <boost/geometry/algorithms/expand.hpp> 16 #include <boost/geometry/index/detail/algorithms/content.hpp> 17 18 namespace boost { namespace geometry { namespace index { namespace detail { 19 20 /** 21 * \brief Compute the area of the union of b1 and b2 22 */ 23 template <typename Box, typename Geometry> union_content(Box const & b,Geometry const & g)24inline typename default_content_result<Box>::type union_content(Box const& b, Geometry const& g) 25 { 26 Box expanded_box(b); 27 geometry::expand(expanded_box, g); 28 return detail::content(expanded_box); 29 } 30 31 }}}} // namespace boost::geometry::index::detail 32 33 #endif // BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_UNION_CONTENT_HPP 34