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


[/ Generated by doxygen_xml2qbk 1.1.1, don't change, will be overwritten automatically]
[/ Generated from doxy/doxygen_output/xml/group__clear.xml]
[section:clear clear]

'''<indexterm><primary>clear</primary></indexterm>'''
Clears a linestring, ring or polygon (exterior+interiors) or multi*. 

[heading Description]
Generic function to clear a geometry. All points will be removed from the collection or collections making up the geometry. In most cases this is equivalent to the .clear() method of a std::vector<...>. In the case of a polygon, this clear functionality is automatically called for the exterior ring, and for the interior ring collection. In the case of a point, boxes and segments, nothing will happen.

[heading Synopsis]
``template<typename Geometry>
void clear(Geometry & geometry)``

[heading Parameters]

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


[heading Header]
Either

`#include <boost/geometry.hpp>`


Or

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

[include reference/algorithms/clear.qbk]


[endsect]