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46 lines
1.1 KiB
C++
46 lines
1.1 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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//[closure
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//` Examine if a polygon is defined as "should be closed"
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#include <iostream>
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#include <boost/geometry.hpp>
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#include <boost/geometry/geometries/polygon.hpp>
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#include <boost/geometry/geometries/point_xy.hpp>
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int main()
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{
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typedef boost::geometry::model::d2::point_xy<double> point_type;
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typedef boost::geometry::model::polygon<point_type> polygon_type;
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boost::geometry::closure_selector clos = boost::geometry::closure<polygon_type>::value;
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std::cout << "closure: " << clos << std::endl
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<< "(open = " << boost::geometry::open
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<< ", closed = " << boost::geometry::closed
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<< ") "<< std::endl;
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return 0;
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}
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//]
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//[closure_output
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/*`
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Output:
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[pre
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closure: 1
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(open = 0, closed = 1)
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]
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*/
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//]
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