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48 lines
1.0 KiB
C++
48 lines
1.0 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// QuickBook Example
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// Copyright (c) 2011-2012 Barend Gehrels, 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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//[make_inverse
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//` Usage of make_inverse and expand to conveniently determine bounding box of several objects
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#include <iostream>
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#include <boost/geometry.hpp>
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#include <boost/geometry/geometries/box.hpp>
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#include <boost/geometry/geometries/point_xy.hpp>
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using namespace boost::geometry;
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int main()
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{
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typedef model::d2::point_xy<double> point;
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typedef model::box<point> box;
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box all = make_inverse<box>();
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std::cout << dsv(all) << std::endl;
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expand(all, make<box>(0, 0, 3, 4));
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expand(all, make<box>(2, 2, 5, 6));
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std::cout << dsv(all) << std::endl;
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return 0;
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}
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//]
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//[make_inverse_output
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/*`
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Output:
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[pre
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((1.79769e+308, 1.79769e+308), (-1.79769e+308, -1.79769e+308))
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((0, 0), (5, 6))
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]
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*/
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//]
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