58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
// 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_MULTI_CORE_POINT_ORDER_HPP
|
|
#define BOOST_GEOMETRY_MULTI_CORE_POINT_ORDER_HPP
|
|
|
|
|
|
#include <boost/range.hpp>
|
|
|
|
#include <boost/geometry/core/point_order.hpp>
|
|
#include <boost/geometry/multi/core/tags.hpp>
|
|
|
|
namespace boost { namespace geometry
|
|
{
|
|
|
|
|
|
#ifndef DOXYGEN_NO_DISPATCH
|
|
namespace core_dispatch
|
|
{
|
|
|
|
template <typename Multi>
|
|
struct point_order<multi_point_tag, Multi>
|
|
: public detail::point_order::clockwise {};
|
|
|
|
template <typename Multi>
|
|
struct point_order<multi_linestring_tag, Multi>
|
|
: public detail::point_order::clockwise {};
|
|
|
|
|
|
// Specialization for multi_polygon: the order is the order of its polygons
|
|
template <typename MultiPolygon>
|
|
struct point_order<multi_polygon_tag, MultiPolygon>
|
|
{
|
|
static const order_selector value = core_dispatch::point_order
|
|
<
|
|
polygon_tag,
|
|
typename boost::range_value<MultiPolygon>::type
|
|
>::value ;
|
|
};
|
|
|
|
} // namespace core_dispatch
|
|
#endif // DOXYGEN_NO_DISPATCH
|
|
|
|
|
|
}} // namespace boost::geometry
|
|
|
|
#endif // BOOST_GEOMETRY_MULTI_CORE_POINT_ORDER_HPP
|