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> |
24 | inline 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 | |