Added boost header

2012-01-08 01:26:07 +00:00
parent 9c3faaca40
commit c7d752cdf8
8946 changed files with 1732316 additions and 0 deletions
--- a/test/external/boost/geometry/algorithms/intersects.hpp
+++ b/test/external/boost/geometry/algorithms/intersects.hpp
@@ -0,0 +1,105 @@
+// 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_ALGORITHMS_INTERSECTS_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_INTERSECTS_HPP
+
+
+#include <deque>
+
+#include <boost/geometry/geometries/concepts/check.hpp>
+#include <boost/geometry/algorithms/detail/overlay/self_turn_points.hpp>
+#include <boost/geometry/algorithms/disjoint.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+/*!
+\brief \brief_check{has at least one intersection (crossing or self-tangency)}
+\note This function can be called for one geometry (self-intersection) and
+    also for two geometries (intersection)
+\ingroup intersects
+\tparam Geometry \tparam_geometry
+\param geometry \param_geometry
+\return \return_check{is self-intersecting}
+
+\qbk{distinguish,one geometry}
+\qbk{[include reference/algorithms/intersects.qbk]}
+*/
+template <typename Geometry>
+inline bool intersects(Geometry const& geometry)
+{
+    concept::check<Geometry const>();
+
+
+    typedef detail::overlay::turn_info
+        <
+            typename geometry::point_type<Geometry>::type
+        > turn_info;
+    std::deque<turn_info> turns;
+
+    typedef typename strategy_intersection
+        <
+            typename cs_tag<Geometry>::type,
+            Geometry,
+            Geometry,
+            typename geometry::point_type<Geometry>::type
+        >::segment_intersection_strategy_type segment_intersection_strategy_type;
+
+    typedef detail::overlay::get_turn_info
+        <
+            typename point_type<Geometry>::type,
+            typename point_type<Geometry>::type,
+            turn_info,
+            detail::overlay::assign_null_policy
+        > TurnPolicy;
+
+    detail::disjoint::disjoint_interrupt_policy policy;
+    detail::self_get_turn_points::get_turns
+            <
+                Geometry,
+                std::deque<turn_info>,
+                TurnPolicy,
+                detail::disjoint::disjoint_interrupt_policy
+            >::apply(geometry, turns, policy);
+    return policy.has_intersections;
+}
+
+
+/*!
+\brief \brief_check2{have at least one intersection}
+\ingroup intersects
+\tparam Geometry1 \tparam_geometry
+\tparam Geometry2 \tparam_geometry
+\param geometry1 \param_geometry
+\param geometry2 \param_geometry
+\return \return_check2{intersect each other}
+
+\qbk{distinguish,two geometries}
+\qbk{[include reference/algorithms/intersects.qbk]}
+ */
+template <typename Geometry1, typename Geometry2>
+inline bool intersects(Geometry1 const& geometry1, Geometry2 const& geometry2)
+{
+    concept::check<Geometry1 const>();
+    concept::check<Geometry2 const>();
+
+    return ! geometry::disjoint(geometry1, geometry2);
+}
+
+
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_INTERSECTS_HPP