// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
+// This file was modified by Oracle on 2014.
+// Modifications copyright (c) 2014, Oracle and/or its affiliates.
+
+// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
+
// 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)
#define BOOST_GEOMETRY_ALGORITHMS_INTERSECTION_HPP
-#include <boost/geometry/core/coordinate_dimension.hpp>
-#include <boost/geometry/algorithms/detail/overlay/intersection_insert.hpp>
-#include <boost/geometry/algorithms/intersects.hpp>
-
-
-namespace boost { namespace geometry
-{
-
-#ifndef DOXYGEN_NO_DETAIL
-namespace detail { namespace intersection
-{
-
-template
-<
- typename Box1, typename Box2,
- typename BoxOut,
- typename Strategy,
- std::size_t Dimension, std::size_t DimensionCount
->
-struct intersection_box_box
-{
- static inline bool apply(Box1 const& box1,
- Box2 const& box2, BoxOut& box_out,
- Strategy const& strategy)
- {
- typedef typename coordinate_type<BoxOut>::type ct;
-
- ct min1 = get<min_corner, Dimension>(box1);
- ct min2 = get<min_corner, Dimension>(box2);
- ct max1 = get<max_corner, Dimension>(box1);
- ct max2 = get<max_corner, Dimension>(box2);
-
- if (max1 < min2 || max2 < min1)
- {
- return false;
- }
- // Set dimensions of output coordinate
- set<min_corner, Dimension>(box_out, min1 < min2 ? min2 : min1);
- set<max_corner, Dimension>(box_out, max1 > max2 ? max2 : max1);
-
- return intersection_box_box
- <
- Box1, Box2, BoxOut, Strategy,
- Dimension + 1, DimensionCount
- >::apply(box1, box2, box_out, strategy);
- }
-};
-
-template
-<
- typename Box1, typename Box2,
- typename BoxOut,
- typename Strategy,
- std::size_t DimensionCount
->
-struct intersection_box_box<Box1, Box2, BoxOut, Strategy, DimensionCount, DimensionCount>
-{
- static inline bool apply(Box1 const&, Box2 const&, BoxOut&, Strategy const&)
- {
- return true;
- }
-};
-
-
-}} // namespace detail::intersection
-#endif // DOXYGEN_NO_DETAIL
-
-
-
-#ifndef DOXYGEN_NO_DISPATCH
-namespace dispatch
-{
-
-// By default, all is forwarded to the intersection_insert-dispatcher
-template
-<
- typename Tag1, typename Tag2, typename TagOut,
- typename Geometry1, typename Geometry2,
- typename GeometryOut,
- typename Strategy
->
-struct intersection
-{
- typedef std::back_insert_iterator<GeometryOut> output_iterator;
-
- static inline bool apply(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- GeometryOut& geometry_out,
- Strategy const& strategy)
- {
- typedef typename boost::range_value<GeometryOut>::type OneOut;
-
- intersection_insert
- <
- Tag1, Tag2, typename geometry::tag<OneOut>::type,
- geometry::is_areal<Geometry1>::value,
- geometry::is_areal<Geometry2>::value,
- geometry::is_areal<OneOut>::value,
- Geometry1, Geometry2,
- detail::overlay::do_reverse<geometry::point_order<Geometry1>::value, false>::value,
- detail::overlay::do_reverse<geometry::point_order<Geometry2>::value, false>::value,
- detail::overlay::do_reverse<geometry::point_order<OneOut>::value>::value,
- output_iterator, OneOut,
- overlay_intersection,
- Strategy
- >::apply(geometry1, geometry2, std::back_inserter(geometry_out), strategy);
-
- return true;
- }
-
-};
-
-
-template
-<
- typename Box1, typename Box2,
- typename BoxOut,
- typename Strategy
->
-struct intersection
- <
- box_tag, box_tag, box_tag,
- Box1, Box2, BoxOut,
- Strategy
- > : public detail::intersection::intersection_box_box
- <
- Box1, Box2, BoxOut,
- Strategy,
- 0, geometry::dimension<Box1>::value
- >
-{};
-
-
-template
-<
- typename Tag1, typename Tag2, typename TagOut,
- typename Geometry1, typename Geometry2,
- typename GeometryOut,
- typename Strategy
->
-struct intersection_reversed
-{
- static inline bool apply(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- GeometryOut& geometry_out,
- Strategy const& strategy)
- {
- return intersection
- <
- Tag2, Tag1, TagOut,
- Geometry2, Geometry1,
- GeometryOut, Strategy
- >::apply(geometry2, geometry1, geometry_out, strategy);
- }
-};
-
-
-
-
-} // namespace dispatch
-#endif // DOXYGEN_NO_DISPATCH
-
-
-/*!
-\brief \brief_calc2{intersection}
-\ingroup intersection
-\details \details_calc2{intersection, spatial set theoretic intersection}.
-\tparam Geometry1 \tparam_geometry
-\tparam Geometry2 \tparam_geometry
-\tparam GeometryOut Collection of geometries (e.g. std::vector, std::deque, boost::geometry::multi*) of which
- the value_type fulfills a \p_l_or_c concept, or it is the output geometry (e.g. for a box)
-\param geometry1 \param_geometry
-\param geometry2 \param_geometry
-\param geometry_out The output geometry, either a multi_point, multi_polygon,
- multi_linestring, or a box (for intersection of two boxes)
-
-\qbk{[include reference/algorithms/intersection.qbk]}
-*/
-template
-<
- typename Geometry1,
- typename Geometry2,
- typename GeometryOut
->
-inline bool intersection(Geometry1 const& geometry1,
- Geometry2 const& geometry2,
- GeometryOut& geometry_out)
-{
- concept::check<Geometry1 const>();
- concept::check<Geometry2 const>();
-
- typedef strategy_intersection
- <
- typename cs_tag<Geometry1>::type,
- Geometry1,
- Geometry2,
- typename geometry::point_type<Geometry1>::type
- > strategy;
-
-
- return boost::mpl::if_c
- <
- geometry::reverse_dispatch<Geometry1, Geometry2>::type::value,
- dispatch::intersection_reversed
- <
- typename geometry::tag<Geometry1>::type,
- typename geometry::tag<Geometry2>::type,
- typename geometry::tag<GeometryOut>::type,
- Geometry1, Geometry2, GeometryOut, strategy
- >,
- dispatch::intersection
- <
- typename geometry::tag<Geometry1>::type,
- typename geometry::tag<Geometry2>::type,
- typename geometry::tag<GeometryOut>::type,
- Geometry1, Geometry2, GeometryOut, strategy
- >
- >::type::apply(geometry1, geometry2, geometry_out, strategy());
-}
-
-
-}} // namespace boost::geometry
+#include <boost/geometry/algorithms/detail/intersection/interface.hpp>
+#include <boost/geometry/algorithms/detail/intersection/implementation.hpp>
#endif // BOOST_GEOMETRY_ALGORITHMS_INTERSECTION_HPP
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