[/============================================================================
  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_distance_pythagoras strategy::distance::pythagoras]

'''<indexterm><primary>strategy</primary></indexterm><indexterm><primary>distance</primary></indexterm><indexterm><primary>pythagoras</primary></indexterm>'''
Strategy to calculate the distance between two points. 

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

[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>
calculation_type< P1, P2 >::type apply(P1 const & p1, P2 const & p2)``

] [applies the distance calculation using pythagoras ] [[* P1 const &]: ['p1]:  first point 

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



][
the calculated distance (including taking the square root) 

]
]
]

[heading Header]
`#include <boost/geometry/strategies/cartesian/distance_pythagoras.hpp>`

[heading Notes]
[note Can be used for points with two, three or more dimensions]
[heading See also]
[link geometry.reference.algorithms.distance.distance_3_with_strategy distance (with strategy)]

[endsect]