12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091 |
- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
- // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
- // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
- // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
- // Use, modification and distribution is subject to the Boost Software License,
- // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- #ifndef BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_POLYGON_CONCEPT_HPP
- #define BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_POLYGON_CONCEPT_HPP
- #include <boost/concept_check.hpp>
- #include <boost/range/concepts.hpp>
- #include <boost/range/metafunctions.hpp>
- #include <boost/geometry/geometries/concepts/polygon_concept.hpp>
- namespace boost { namespace geometry { namespace concepts
- {
- /*!
- \brief multi-polygon concept
- \ingroup concepts
- \par Formal definition:
- The multi polygon concept is defined as following:
- - there must be a specialization of traits::tag defining multi_polygon_tag
- as type
- - it must behave like a Boost.Range
- - its range value must fulfil the Polygon concept
- */
- template <typename Geometry>
- class MultiPolygon
- {
- #ifndef DOXYGEN_NO_CONCEPT_MEMBERS
- typedef typename boost::range_value<Geometry>::type polygon_type;
- BOOST_CONCEPT_ASSERT( (concepts::Polygon<polygon_type>) );
- BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) );
- public :
- BOOST_CONCEPT_USAGE(MultiPolygon)
- {
- Geometry* mp = 0;
- traits::clear<Geometry>::apply(*mp);
- traits::resize<Geometry>::apply(*mp, 0);
- polygon_type* poly = 0;
- traits::push_back<Geometry>::apply(*mp, *poly);
- }
- #endif
- };
- /*!
- \brief concept for multi-polygon (const version)
- \ingroup const_concepts
- */
- template <typename Geometry>
- class ConstMultiPolygon
- {
- #ifndef DOXYGEN_NO_CONCEPT_MEMBERS
- typedef typename boost::range_value<Geometry>::type polygon_type;
- BOOST_CONCEPT_ASSERT( (concepts::ConstPolygon<polygon_type>) );
- BOOST_CONCEPT_ASSERT( (boost::RandomAccessRangeConcept<Geometry>) );
- public :
- BOOST_CONCEPT_USAGE(ConstMultiPolygon)
- {
- }
- #endif
- };
- }}} // namespace boost::geometry::concepts
- #endif // BOOST_GEOMETRY_GEOMETRIES_CONCEPTS_MULTI_POLYGON_CONCEPT_HPP
|