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52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// QuickBook Example
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// Copyright (c) 2011 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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//[intersection_segment
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//` Calculate the intersection point (or points) of two segments
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#include <iostream>
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#include <boost/geometry/geometry.hpp>
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#include <boost/geometry/domains/gis/io/wkt/wkt.hpp>
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#include <boost/geometry/geometries/adapted/std_as_linestring.hpp> /*< Adapts std::vector to linestring concept >*/
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#include <boost/foreach.hpp>
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int main()
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{
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typedef boost::geometry::model::d2::point_xy<double> P;
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boost::geometry::model::segment<P> segment1, segment2;
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boost::geometry::read_wkt("linestring(1 1,2 2)", segment1);
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boost::geometry::read_wkt("linestring(2 1,1 2)", segment2);
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std::vector<P> intersections;
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boost::geometry::intersection(segment1, segment2, intersections);
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BOOST_FOREACH(P const& p, intersections)
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{
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std::cout << " " << boost::geometry::wkt(p);
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}
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std::cout << std::endl;
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return 0;
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}
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//]
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//[intersection_segment_output
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/*`
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Output:
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[pre
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POINT(1.5 1.5)
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]
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*/
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//]
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