[/============================================================================
  Boost.Geometry (aka GGL, Generic Geometry Library)

  Copyright (c) 2009-2011 Barend Gehrels, Geodan, Amsterdam, the Netherlands.
  Copyright (c) 2009-2011 Mateusz Loskot (mateusz@loskot.net)
  Copyright (c) 2009-2011 Bruno Lalande, Paris, France.

  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)
=============================================================================/]


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[section:intersects_2_two_geometries intersects (two geometries)]

Checks if two geometries have at least one intersection. 

[heading Synopsis]
``template<typename Geometry1, typename Geometry2>
bool intersects(Geometry1 const & geometry1, Geometry2 const & geometry2)``

[heading Parameters]

[table
[[Type] [Concept] [Name] [Description] ]
[[Geometry1 const &] [Any type fulfilling a Geometry Concept ] [geometry1] [A model of the specified concept ]]
[[Geometry2 const &] [Any type fulfilling a Geometry Concept ] [geometry2] [A model of the specified concept ]]
]


[heading Returns]
Returns true if two geometries intersect each other

[heading Header]
Either

`#include <boost/geometry/geometry.hpp>`

Or

`#include <boost/geometry/algorithms/intersects.hpp>`

[include reference/algorithms/intersects.qbk]


[endsect]

[section:intersects_1_one_geometry intersects (one geometry)]

Checks if a geometry has at least one intersection (crossing or self-tangency). 

[heading Synopsis]
``template<typename Geometry>
bool intersects(Geometry const & geometry)``

[heading Parameters]

[table
[[Type] [Concept] [Name] [Description] ]
[[Geometry const &] [Any type fulfilling a Geometry Concept ] [geometry] [A model of the specified concept ]]
]


[heading Returns]
Returns true if the geometry is self-intersecting

[heading Header]
Either

`#include <boost/geometry/geometry.hpp>`

Or

`#include <boost/geometry/algorithms/intersects.hpp>`

[include reference/algorithms/intersects.qbk]


[endsect]