geometry/doc/reference/algorithms/unique.qbk

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[/============================================================================
Boost.Geometry (aka GGL, Generic Geometry Library)
Copyright (c) 2009-2012 Barend Gehrels, Amsterdam, the Netherlands.
Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
Copyright (c) 2009-2012 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)
=============================================================================/]
[def __applies_unique__ Removes all consecutive duplicate points]
[def __this_function__ unique]
[heading_conformance_no_ogc __this_function__]
[conformance_std __this_function__..std::__this_function__ function]
[heading Behavior]
[table
[[Case] [Behavior] ]
[[__point__][__does_nothing__]]
[[__segment__][__does_nothing__]]
[[__box__][__does_nothing__]]
[[__linestring__][__applies_unique__]]
[[__ring__][__applies_unique__]]
[[__polygon__][__applies_unique__ in all rings]]
[[__multi_point__][__does_nothing__. Even if two equal points happen to be stored consecutively, they are kept]]
[[__multi_linestring__][__applies_unique__ in all contained linestrings]]
[[__multi_polygon__][__applies_unique__ in all contained polygons (all rings)]]
]
[heading Complexity]
Linear
[heading Example]
[unique]
[unique_output]