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// 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_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 Point,
typename MultiGeometry,
typename Policy
>
struct point_on_multi
{
static inline bool apply(Point& point, MultiGeometry const& multi, bool midpoint)
{
// 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(point, *it, midpoint))
{
return true;
}
}
return false;
}
};
}} // namespace detail::point_on_border
#endif // DOXYGEN_NO_DETAIL
#ifndef DOXYGEN_NO_DISPATCH
namespace dispatch
{
template<typename Point, typename Multi>
struct point_on_border<multi_polygon_tag, Point, Multi>
: detail::point_on_border::point_on_multi
<
Point,
Multi,
detail::point_on_border::point_on_polygon
<
Point,
typename boost::range_value<Multi>::type
>
>
{};
} // namespace dispatch
#endif // DOXYGEN_NO_DISPATCH
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_MULTI_ALGORITHMS_DETAIL_POINT_ON_BORDER_HPP
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