ceph/src/boost/libs/geometry/include/boost/geometry/geometries/concepts/multi_polygon_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_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