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 concepts
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( (concepts::Linestring<linestring_type>) );
49     BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) );
50 
51 
52 public :
53 
BOOST_CONCEPT_USAGE(MultiLinestring)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( (concepts::ConstLinestring<linestring_type>) );
77     BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) );
78 
79 
80 public :
81 
BOOST_CONCEPT_USAGE(ConstMultiLinestring)82     BOOST_CONCEPT_USAGE(ConstMultiLinestring)
83     {
84     }
85 #endif
86 };
87 
88 }}} // namespace boost::geometry::concepts
89 
90 
91 #endif // BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_LINESTRING_CONCEPT_HPP
92