geometries/concepts/multi_point_concept.hpp

0001 // Boost.Geometry (aka GGL, Generic Geometry Library)
0002
0003 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
0004 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
0005 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
0006
0007 // This file was modified by Oracle on 2020-2021.
0008 // Modifications copyright (c) 2020-2021 Oracle and/or its affiliates.
0009 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
0010
0011 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
0012 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
0013
0014 // Use, modification and distribution is subject to the Boost Software License,
0015 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0016 // http://www.boost.org/LICENSE_1_0.txt)
0017
0018
0019 #ifndef BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_POINT_CONCEPT_HPP
0020 #define BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_POINT_CONCEPT_HPP
0021
0022
0023 #include <boost/concept_check.hpp>
0024 #include <boost/range/concepts.hpp>
0025 #include <boost/range/value_type.hpp>
0026
0027 #include <boost/geometry/core/mutable_range.hpp>
0028
0029 #include <boost/geometry/geometries/concepts/concept_type.hpp>
0030 #include <boost/geometry/geometries/concepts/point_concept.hpp>
0031
0032
0033 namespace boost { namespace geometry { namespace concepts
0034 {
0035
0036 template <typename Geometry>
0037 class MultiPoint
0038 {
0039 #ifndef DOXYGEN_NO_CONCEPT_MEMBERS
0040     typedef typename boost::range_value<Geometry>::type point_type;
0041
0042     BOOST_CONCEPT_ASSERT( (concepts::Point<point_type>) );
0043     BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) );
0044
0045
0046 public :
0047
0048     BOOST_CONCEPT_USAGE(MultiPoint)
0049     {
0050         Geometry* mp = 0;
0051         traits::clear<Geometry>::apply(*mp);
0052         traits::resize<Geometry>::apply(*mp, 0);
0053         point_type* point = 0;
0054         traits::push_back<Geometry>::apply(*mp, *point);
0055     }
0056 #endif
0057 };
0058
0059
0060 /*!
0061 \brief concept for multi-point (const version)
0062 \ingroup const_concepts
0063 */
0064 template <typename Geometry>
0065 class ConstMultiPoint
0066 {
0067 #ifndef DOXYGEN_NO_CONCEPT_MEMBERS
0068     typedef typename boost::range_value<Geometry>::type point_type;
0069
0070     BOOST_CONCEPT_ASSERT( (concepts::ConstPoint<point_type>) );
0071     BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) );
0072
0073
0074 public :
0075
0076     BOOST_CONCEPT_USAGE(ConstMultiPoint)
0077     {
0078     }
0079 #endif
0080 };
0081
0082
0083 template <typename Geometry>
0084 struct concept_type<Geometry, multi_point_tag>
0085 {
0086     using type = MultiPoint<Geometry>;
0087 };
0088
0089 template <typename Geometry>
0090 struct concept_type<Geometry const, multi_point_tag>
0091 {
0092     using type = ConstMultiPoint<Geometry>;
0093 };
0094
0095
0096 }}} // namespace boost::geometry::concepts
0097
0098
0099 #endif // BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_POINT_CONCEPT_HPP