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

  Copyright (c) 2007-2013 Barend Gehrels, Amsterdam, the Netherlands.
  Copyright (c) 2008-2013 Bruno Lalande, Paris, France.
  Copyright (c) 2009-2013 Mateusz Loskot, London, UK.

  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:strategy_side_side_by_cross_track strategy::side::side_by_cross_track]

'''<indexterm><primary>strategy</primary></indexterm><indexterm><primary>side</primary></indexterm><indexterm><primary>side_by_cross_track</primary></indexterm>'''
Check at which side of a Great Circle segment a point lies left of segment (> 0), right of segment (< 0), on segment (0) 

[heading Synopsis]
``template<typename CalculationType>
class strategy::side::side_by_cross_track
{
  // ...
};
``

[heading Template parameter(s)]
[table
[[Parameter] [Default] [Description]]
[[typename CalculationType] [void] [numeric type for calculation (e.g. high precision); if [*void] then it is extracted automatically from the coordinate type and (if necessary) promoted to floating point ]]
]

[heading Member Function(s)]
[table
[[Function] [Description] [Parameters]  [Returns]]
[[``template<typename P1, typename P2, typename P>
int apply(P1 const & p1, P2 const & p2, P const & p)``

] [] [[* P1 const &]: ['p1]:  

[* P2 const &]: ['p2]:  

[* P const &]: ['p]:  



][

]
]
]

[heading Header]
`#include <boost/geometry/strategies/spherical/side_by_cross_track.hpp>`

[endsect]