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git.proxmox.com Git - ceph.git/blob - ceph/src/boost/libs/geometry/doc/src/examples/algorithms/make_inverse.cpp
1 // Boost.Geometry (aka GGL, Generic Geometry Library)
4 // Copyright (c) 2011-2012 Barend Gehrels, Amsterdam, the Netherlands.
6 // Use, modification and distribution is subject to the Boost Software License,
7 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
8 // http://www.boost.org/LICENSE_1_0.txt)
11 //` Usage of make_inverse and expand to conveniently determine bounding box of several objects
15 #include <boost/geometry.hpp>
16 #include <boost/geometry/geometries/box.hpp>
17 #include <boost/geometry/geometries/point_xy.hpp>
19 using namespace boost::geometry
;
24 typedef model::d2::point_xy
<double> point
;
25 typedef model::box
<point
> box
;
27 box all
= make_inverse
<box
>();
28 std::cout
<< dsv(all
) << std::endl
;
29 expand(all
, make
<box
>(0, 0, 3, 4));
30 expand(all
, make
<box
>(2, 2, 5, 6));
31 std::cout
<< dsv(all
) << std::endl
;
39 //[make_inverse_output
43 ((1.79769e+308, 1.79769e+308), (-1.79769e+308, -1.79769e+308))