| // Boost.Geometry (aka GGL, Generic Geometry Library) |
| |
| // Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands. |
| // Copyright (c) 2008-2011 Bruno Lalande, Paris, France. |
| // Copyright (c) 2009-2011 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_ALGORITHMS_DETAIL_POINT_ON_BORDER_HPP |
| #define BOOST_GEOMETRY_MULTI_ALGORITHMS_DETAIL_POINT_ON_BORDER_HPP |
| |
| #include <boost/range.hpp> |
| |
| #include <boost/geometry/multi/core/tags.hpp> |
| #include <boost/geometry/algorithms/detail/point_on_border.hpp> |
| |
| |
| namespace boost { namespace geometry |
| { |
| |
| |
| #ifndef DOXYGEN_NO_DETAIL |
| namespace detail { namespace point_on_border |
| { |
| |
| |
| template |
| < |
| typename MultiGeometry, |
| typename Point, |
| typename Policy |
| > |
| struct point_on_multi |
| { |
| static inline bool apply(MultiGeometry const& multi, Point& point) |
| { |
| // Take a point on the first multi-geometry |
| // (i.e. the first that is not empty) |
| for (typename boost::range_iterator |
| < |
| MultiGeometry const |
| >::type it = boost::begin(multi); |
| it != boost::end(multi); |
| ++it) |
| { |
| if (Policy::apply(*it, point)) |
| { |
| return true; |
| } |
| } |
| return false; |
| } |
| }; |
| |
| |
| |
| |
| }} // namespace detail::point_on_border |
| #endif // DOXYGEN_NO_DETAIL |
| |
| |
| #ifndef DOXYGEN_NO_DISPATCH |
| namespace dispatch |
| { |
| |
| |
| template<typename Multi, typename Point> |
| struct point_on_border<multi_polygon_tag, Multi, Point> |
| : detail::point_on_border::point_on_multi |
| < |
| Multi, |
| Point, |
| detail::point_on_border::point_on_polygon |
| < |
| typename boost::range_value<Multi>::type, |
| Point |
| > |
| > |
| {}; |
| |
| |
| |
| } // namespace dispatch |
| #endif // DOXYGEN_NO_DISPATCH |
| |
| |
| |
| }} // namespace boost::geometry |
| |
| #endif // BOOST_GEOMETRY_MULTI_ALGORITHMS_DETAIL_POINT_ON_BORDER_HPP |