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// Boost.Geometry (aka GGL, Generic Geometry Library)
// QuickBook Example
// Copyright (c) 2011-2024 Barend Gehrels, Amsterdam, the Netherlands.
// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//[intersects
//` Check if two linestrings intersect each other
#include <iostream>
#include <boost/geometry.hpp>
#include <boost/geometry/geometries/linestring.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
int main()
{
// Calculate the intersects of a cartesian polygon
using P = boost::geometry::model::d2::point_xy<double>;
boost::geometry::model::linestring<P> line1, line2;
boost::geometry::read_wkt("linestring(1 1,2 2)", line1);
boost::geometry::read_wkt("linestring(2 1,1 2)", line2);
bool intersects = boost::geometry::intersects(line1, line2);
std::cout << "Intersects: " << (intersects ? "YES" : "NO") << std::endl;
return 0;
}
//]
//[intersects_output
/*`
Output:
[pre
Intersects: YES
]
*/
//]
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