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_LINESTRING_CONCEPT_HPP |
16 | #define BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_LINESTRING_CONCEPT_HPP |
17 | |
18 | |
19 | #include <boost/concept_check.hpp> |
20 | #include <boost/range/concepts.hpp> |
21 | #include <boost/range/metafunctions.hpp> |
22 | |
23 | |
24 | #include <boost/geometry/geometries/concepts/linestring_concept.hpp> |
25 | |
26 | |
27 | namespace boost { namespace geometry { namespace concept |
28 | { |
29 | |
30 | |
31 | /*! |
32 | \brief multi-linestring concept |
33 | \ingroup concepts |
34 | \par Formal definition: |
35 | The multi linestring concept is defined as following: |
36 | - there must be a specialization of traits::tag defining multi_linestring_tag as |
37 | type |
38 | - it must behave like a Boost.Range |
39 | - its range value must fulfil the Linestring concept |
40 | |
41 | */ |
42 | template <typename Geometry> |
43 | class MultiLinestring |
44 | { |
45 | #ifndef DOXYGEN_NO_CONCEPT_MEMBERS |
46 | typedef typename boost::range_value<Geometry>::type linestring_type; |
47 | |
48 | BOOST_CONCEPT_ASSERT( (concept::Linestring<linestring_type>) ); |
49 | BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) ); |
50 | |
51 | |
52 | public : |
53 | |
54 | BOOST_CONCEPT_USAGE(MultiLinestring) |
55 | { |
56 | Geometry* mls = 0; |
57 | traits::clear<Geometry>::apply(*mls); |
58 | traits::resize<Geometry>::apply(*mls, 0); |
59 | linestring_type* ls = 0; |
60 | traits::push_back<Geometry>::apply(*mls, *ls); |
61 | } |
62 | #endif |
63 | }; |
64 | |
65 | |
66 | /*! |
67 | \brief concept for multi-linestring (const version) |
68 | \ingroup const_concepts |
69 | */ |
70 | template <typename Geometry> |
71 | class ConstMultiLinestring |
72 | { |
73 | #ifndef DOXYGEN_NO_CONCEPT_MEMBERS |
74 | typedef typename boost::range_value<Geometry>::type linestring_type; |
75 | |
76 | BOOST_CONCEPT_ASSERT( (concept::ConstLinestring<linestring_type>) ); |
77 | BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) ); |
78 | |
79 | |
80 | public : |
81 | |
82 | BOOST_CONCEPT_USAGE(ConstMultiLinestring) |
83 | { |
84 | } |
85 | #endif |
86 | }; |
87 | |
88 | }}} // namespace boost::geometry::concept |
89 | |
90 | |
91 | #endif // BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_LINESTRING_CONCEPT_HPP |
92 | |