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1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | ||
3 | // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands. | |
4 | // Copyright (c) 2008-2012 Bruno Lalande, Paris, France. | |
5 | // Copyright (c) 2009-2012 Mateusz Loskot, London, UK. | |
6 | ||
7 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library | |
8 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. | |
9 | ||
10 | // Use, modification and distribution is subject to the Boost Software License, | |
11 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
12 | // http://www.boost.org/LICENSE_1_0.txt) | |
13 | ||
14 | ||
15 | #ifndef BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_POLYGON_CONCEPT_HPP | |
16 | #define BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_POLYGON_CONCEPT_HPP | |
17 | ||
18 | ||
19 | #include <boost/concept_check.hpp> | |
20 | #include <boost/range/concepts.hpp> | |
21 | #include <boost/range/metafunctions.hpp> | |
22 | ||
23 | #include <boost/geometry/geometries/concepts/polygon_concept.hpp> | |
24 | ||
25 | ||
26 | namespace boost { namespace geometry { namespace concepts | |
27 | { | |
28 | ||
29 | ||
30 | /*! | |
31 | \brief multi-polygon concept | |
32 | \ingroup concepts | |
33 | \par Formal definition: | |
34 | The multi polygon concept is defined as following: | |
35 | - there must be a specialization of traits::tag defining multi_polygon_tag | |
36 | as type | |
37 | - it must behave like a Boost.Range | |
38 | - its range value must fulfil the Polygon concept | |
39 | ||
40 | */ | |
41 | template <typename Geometry> | |
42 | class MultiPolygon | |
43 | { | |
44 | #ifndef DOXYGEN_NO_CONCEPT_MEMBERS | |
45 | typedef typename boost::range_value<Geometry>::type polygon_type; | |
46 | ||
47 | BOOST_CONCEPT_ASSERT( (concepts::Polygon<polygon_type>) ); | |
48 | BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) ); | |
49 | ||
50 | ||
51 | public : | |
52 | ||
53 | BOOST_CONCEPT_USAGE(MultiPolygon) | |
54 | { | |
55 | Geometry* mp = 0; | |
56 | traits::clear<Geometry>::apply(*mp); | |
57 | traits::resize<Geometry>::apply(*mp, 0); | |
58 | polygon_type* poly = 0; | |
59 | traits::push_back<Geometry>::apply(*mp, *poly); | |
60 | } | |
61 | #endif | |
62 | }; | |
63 | ||
64 | ||
65 | /*! | |
66 | \brief concept for multi-polygon (const version) | |
67 | \ingroup const_concepts | |
68 | */ | |
69 | template <typename Geometry> | |
70 | class ConstMultiPolygon | |
71 | { | |
72 | #ifndef DOXYGEN_NO_CONCEPT_MEMBERS | |
73 | typedef typename boost::range_value<Geometry>::type polygon_type; | |
74 | ||
75 | BOOST_CONCEPT_ASSERT( (concepts::ConstPolygon<polygon_type>) ); | |
76 | BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) ); | |
77 | ||
78 | ||
79 | public : | |
80 | ||
81 | BOOST_CONCEPT_USAGE(ConstMultiPolygon) | |
82 | { | |
83 | } | |
84 | #endif | |
85 | }; | |
86 | ||
87 | ||
88 | }}} // namespace boost::geometry::concepts | |
89 | ||
90 | ||
91 | #endif // BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_POLYGON_CONCEPT_HPP |