EVOLUTION-MANAGER

Edit File: is_areal.hpp

// 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_CORE_IS_AREAL_HPP #define BOOST_GEOMETRY_CORE_IS_AREAL_HPP #include <boost/type_traits/integral_constant.hpp> #include <boost/geometry/core/tag.hpp> #include <boost/geometry/core/tags.hpp> namespace boost { namespace geometry { #ifndef DOXYGEN_NO_DISPATCH namespace core_dispatch { template <typename GeometryTag> struct is_areal : boost::false_type {}; template <> struct is_areal<ring_tag> : boost::true_type {}; template <> struct is_areal<box_tag> : boost::true_type {}; template <> struct is_areal<polygon_tag> : boost::true_type {}; template <> struct is_areal<multi_polygon_tag> : boost::true_type {}; } // namespace core_dispatch #endif /*! \brief Meta-function defining "true" for areal types (box, (multi)polygon, ring), \note Used for tag dispatching and meta-function finetuning \note Also a "ring" has areal properties within Boost.Geometry \ingroup core */ template <typename Geometry> struct is_areal : core_dispatch::is_areal<typename tag<Geometry>::type> {}; }} // namespace boost::geometry #endif // BOOST_GEOMETRY_CORE_IS_AREAL_HPP