ceph/src/boost/libs/geometry/include/boost/geometry/geometries/concepts/multi_linestring_concept.hpp

   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
  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
  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