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Diffstat (limited to 'boost/geometry/util/order_as_direction.hpp')
| -rw-r--r-- | boost/geometry/util/order_as_direction.hpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/boost/geometry/util/order_as_direction.hpp b/boost/geometry/util/order_as_direction.hpp new file mode 100644 index 0000000000..6895ebf3f1 --- /dev/null +++ b/boost/geometry/util/order_as_direction.hpp @@ -0,0 +1,46 @@ +// 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_UTIL_ORDER_AS_DIRECTION_HPP +#define BOOST_GEOMETRY_UTIL_ORDER_AS_DIRECTION_HPP + +#include <boost/geometry/core/point_order.hpp> +#include <boost/geometry/views/reversible_view.hpp> + +namespace boost { namespace geometry +{ + + +template<order_selector Order> +struct order_as_direction +{}; + + +template<> +struct order_as_direction<clockwise> +{ + static const iterate_direction value = iterate_forward; +}; + + +template<> +struct order_as_direction<counterclockwise> +{ + static const iterate_direction value = iterate_reverse; +}; + + +}} // namespace boost::geometry + + +#endif // BOOST_GEOMETRY_UTIL_ORDER_AS_DIRECTION_HPP |