1 [/============================================================================
2 Boost.Geometry (aka GGL, Generic Geometry Library)
4 Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
5 Copyright (c) 2009-2012 Barend Gehrels, Amsterdam, the Netherlands.
6 Copyright (c) 2009-2012 Bruno Lalande, Paris, France.
8 Use, modification and distribution is subject to the Boost Software License,
9 Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
10 http://www.boost.org/LICENSE_1_0.txt)
11 =============================================================================/]
13 [section:concept_multi_polygon MultiPolygon Concept]
16 [concept MultiPolygon..multi polygon]
18 [heading Concept Definition]
20 The MultiPolygon Concept is defined as following:
22 * There must be a specialization of the metafunction `traits::tag`, defining `multi_polygon_tag` as type
23 * It must behave like a Boost.Range Random Access Range
24 * The type defined by the metafunction `range_value<...>::type` must fulfill
25 the [link geometry.reference.concepts.concept_polygon Polygon Concept]
29 Besides the Concepts, which are checks on compile-time, there are
30 rules that valid MultiPolygons must fulfill. See the
31 [link geometry.reference.concepts.concept_polygon Polygon Concept] for more information
32 on the rules a polygon (and also a multi polygon) must fulfill.
36 * Individual polygons making up a multi-polygon may not intersect each other,
37 but tangencies are allowed.
38 * One polygon might be located within the interior ring of another polygon.
40 [heading Available Models]
41 * [link geometry.reference.models.model_multi_polygon model::multi_polygon]