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
27namespace boost { namespace geometry { namespace concept
28{
29
30
31/*!
32\brief multi-linestring concept
33\ingroup concepts
34\par Formal definition:
35The 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*/
42template <typename Geometry>
43class 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
52public :
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*/
70template <typename Geometry>
71class 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
80public :
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

source code of boost/boost/geometry/geometries/concepts/multi_linestring_concept.hpp