45 lines
1.7 KiB
Plaintext
45 lines
1.7 KiB
Plaintext
[/============================================================================
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Boost.Geometry (aka GGL, Generic Geometry Library)
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Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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Copyright (c) 2009-2012 Barend Gehrels, Amsterdam, the Netherlands.
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Copyright (c) 2009-2012 Bruno Lalande, Paris, France.
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Use, modification and distribution is subject to the Boost Software License,
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Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================/]
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[section:concept_multi_polygon MultiPolygon Concept]
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[heading Description]
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[concept MultiPolygon..multi polygon]
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[heading Concept Definition]
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The MultiPolygon Concept is defined as following:
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* There must be a specialization of the metafunction `traits::tag`, defining `multi_polygon_tag` as type
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* It must behave like a Boost.Range Random Access Range
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* The type defined by the metafunction `range_value<...>::type` must fulfill
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the [link geometry.reference.concepts.concept_polygon Polygon Concept]
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[heading Rules]
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Besides the Concepts, which are checks on compile-time, there are
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rules that valid MultiPolygons must fulfill. See the
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[link geometry.reference.concepts.concept_polygon Polygon Concept] for more information
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on the rules a polygon (and also a multi polygon) must fulfill.
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Additionally:
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* Individual polygons making up a multi-polygon may not intersect each other,
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but tangencies are allowed.
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* One polygon might be located within the interior ring of another polygon.
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[heading Available Models]
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* [link geometry.reference.models.model_multi_polygon model::multi_polygon]
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[endsect]
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