536 lines
16 KiB
C++
536 lines
16 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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// This file was modified by Oracle on 2013, 2014.
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// Modifications copyright (c) 2013, 2014 Oracle and/or its affiliates.
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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#ifndef BOOST_GEOMETRY_ALGORITHMS_WITHIN_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_WITHIN_HPP
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#include <cstddef>
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#include <boost/concept_check.hpp>
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#include <boost/range.hpp>
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#include <boost/variant/static_visitor.hpp>
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#include <boost/variant/apply_visitor.hpp>
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#include <boost/variant/variant_fwd.hpp>
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#include <boost/geometry/algorithms/make.hpp>
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#include <boost/geometry/algorithms/not_implemented.hpp>
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#include <boost/geometry/core/access.hpp>
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#include <boost/geometry/core/closure.hpp>
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#include <boost/geometry/core/cs.hpp>
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#include <boost/geometry/core/exterior_ring.hpp>
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#include <boost/geometry/core/interior_rings.hpp>
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#include <boost/geometry/core/point_order.hpp>
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#include <boost/geometry/core/ring_type.hpp>
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#include <boost/geometry/core/interior_rings.hpp>
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#include <boost/geometry/core/tags.hpp>
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#include <boost/geometry/geometries/concepts/check.hpp>
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#include <boost/geometry/strategies/concepts/within_concept.hpp>
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#include <boost/geometry/strategies/default_strategy.hpp>
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#include <boost/geometry/strategies/within.hpp>
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#include <boost/geometry/util/math.hpp>
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#include <boost/geometry/util/order_as_direction.hpp>
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#include <boost/geometry/views/closeable_view.hpp>
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#include <boost/geometry/views/reversible_view.hpp>
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#include <boost/geometry/algorithms/detail/within/point_in_geometry.hpp>
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#include <boost/geometry/algorithms/detail/overlay/get_turns.hpp>
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#include <boost/geometry/algorithms/detail/overlay/do_reverse.hpp>
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#include <deque>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail { namespace within {
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struct use_point_in_geometry
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{
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template <typename Geometry1, typename Geometry2, typename Strategy>
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static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2, Strategy const& strategy)
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{
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return detail::within::point_in_geometry(geometry1, geometry2, strategy) == 1;
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}
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};
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struct use_relate
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{
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template <typename Geometry1, typename Geometry2, typename Strategy>
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static inline bool apply(Geometry1 const& geometry1, Geometry2 const& geometry2, Strategy const& /*strategy*/)
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{
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return Strategy::apply(geometry1, geometry2);
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}
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};
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}} // namespace detail::within
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#endif // DOXYGEN_NO_DETAIL
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#ifndef DOXYGEN_NO_DISPATCH
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namespace dispatch
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{
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template
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<
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typename Geometry1,
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typename Geometry2,
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typename Tag1 = typename tag<Geometry1>::type,
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typename Tag2 = typename tag<Geometry2>::type
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>
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struct within
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: not_implemented<Tag1, Tag2>
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{};
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template <typename Point, typename Box>
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struct within<Point, Box, point_tag, box_tag>
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{
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template <typename Strategy>
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static inline bool apply(Point const& point, Box const& box, Strategy const& strategy)
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{
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boost::ignore_unused_variable_warning(strategy);
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return strategy.apply(point, box);
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}
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};
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template <typename Box1, typename Box2>
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struct within<Box1, Box2, box_tag, box_tag>
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{
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template <typename Strategy>
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static inline bool apply(Box1 const& box1, Box2 const& box2, Strategy const& strategy)
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{
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assert_dimension_equal<Box1, Box2>();
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boost::ignore_unused_variable_warning(strategy);
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return strategy.apply(box1, box2);
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}
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};
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// P/P
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template <typename Point1, typename Point2>
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struct within<Point1, Point2, point_tag, point_tag>
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: public detail::within::use_point_in_geometry
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{};
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template <typename Point, typename MultiPoint>
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struct within<Point, MultiPoint, point_tag, multi_point_tag>
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: public detail::within::use_point_in_geometry
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{};
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// P/L
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template <typename Point, typename Segment>
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struct within<Point, Segment, point_tag, segment_tag>
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: public detail::within::use_point_in_geometry
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{};
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template <typename Point, typename Linestring>
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struct within<Point, Linestring, point_tag, linestring_tag>
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: public detail::within::use_point_in_geometry
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{};
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template <typename Point, typename MultiLinestring>
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struct within<Point, MultiLinestring, point_tag, multi_linestring_tag>
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: public detail::within::use_point_in_geometry
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{};
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// P/A
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template <typename Point, typename Ring>
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struct within<Point, Ring, point_tag, ring_tag>
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: public detail::within::use_point_in_geometry
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{};
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template <typename Point, typename Polygon>
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struct within<Point, Polygon, point_tag, polygon_tag>
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: public detail::within::use_point_in_geometry
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{};
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template <typename Point, typename MultiPolygon>
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struct within<Point, MultiPolygon, point_tag, multi_polygon_tag>
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: public detail::within::use_point_in_geometry
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{};
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// L/L
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template <typename Linestring1, typename Linestring2>
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struct within<Linestring1, Linestring2, linestring_tag, linestring_tag>
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: public detail::within::use_relate
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{};
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template <typename Linestring, typename MultiLinestring>
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struct within<Linestring, MultiLinestring, linestring_tag, multi_linestring_tag>
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: public detail::within::use_relate
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{};
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template <typename MultiLinestring, typename Linestring>
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struct within<MultiLinestring, Linestring, multi_linestring_tag, linestring_tag>
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: public detail::within::use_relate
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{};
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template <typename MultiLinestring1, typename MultiLinestring2>
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struct within<MultiLinestring1, MultiLinestring2, multi_linestring_tag, multi_linestring_tag>
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: public detail::within::use_relate
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{};
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// L/A
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template <typename Linestring, typename Ring>
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struct within<Linestring, Ring, linestring_tag, ring_tag>
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: public detail::within::use_relate
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{};
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template <typename MultiLinestring, typename Ring>
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struct within<MultiLinestring, Ring, multi_linestring_tag, ring_tag>
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: public detail::within::use_relate
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{};
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template <typename Linestring, typename Polygon>
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struct within<Linestring, Polygon, linestring_tag, polygon_tag>
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: public detail::within::use_relate
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{};
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template <typename MultiLinestring, typename Polygon>
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struct within<MultiLinestring, Polygon, multi_linestring_tag, polygon_tag>
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: public detail::within::use_relate
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{};
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template <typename Linestring, typename MultiPolygon>
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struct within<Linestring, MultiPolygon, linestring_tag, multi_polygon_tag>
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: public detail::within::use_relate
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{};
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template <typename MultiLinestring, typename MultiPolygon>
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struct within<MultiLinestring, MultiPolygon, multi_linestring_tag, multi_polygon_tag>
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: public detail::within::use_relate
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{};
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// A/A
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template <typename Ring1, typename Ring2>
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struct within<Ring1, Ring2, ring_tag, ring_tag>
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: public detail::within::use_relate
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{};
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template <typename Ring, typename Polygon>
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struct within<Ring, Polygon, ring_tag, polygon_tag>
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: public detail::within::use_relate
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{};
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template <typename Polygon, typename Ring>
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struct within<Polygon, Ring, polygon_tag, ring_tag>
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: public detail::within::use_relate
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{};
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template <typename Polygon1, typename Polygon2>
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struct within<Polygon1, Polygon2, polygon_tag, polygon_tag>
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: public detail::within::use_relate
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{};
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template <typename Ring, typename MultiPolygon>
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struct within<Ring, MultiPolygon, ring_tag, multi_polygon_tag>
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: public detail::within::use_relate
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{};
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template <typename MultiPolygon, typename Ring>
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struct within<MultiPolygon, Ring, multi_polygon_tag, ring_tag>
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: public detail::within::use_relate
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{};
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template <typename Polygon, typename MultiPolygon>
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struct within<Polygon, MultiPolygon, polygon_tag, multi_polygon_tag>
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: public detail::within::use_relate
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{};
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template <typename MultiPolygon, typename Polygon>
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struct within<MultiPolygon, Polygon, multi_polygon_tag, polygon_tag>
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: public detail::within::use_relate
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{};
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template <typename MultiPolygon1, typename MultiPolygon2>
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struct within<MultiPolygon1, MultiPolygon2, multi_polygon_tag, multi_polygon_tag>
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: public detail::within::use_relate
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{};
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} // namespace dispatch
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#endif // DOXYGEN_NO_DISPATCH
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namespace resolve_strategy
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{
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struct within
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{
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template <typename Geometry1, typename Geometry2, typename Strategy>
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static inline bool apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Strategy const& strategy)
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{
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concept::within::check
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<
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typename tag<Geometry1>::type,
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typename tag<Geometry2>::type,
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typename tag_cast<typename tag<Geometry2>::type, areal_tag>::type,
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Strategy
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>();
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return dispatch::within<Geometry1, Geometry2>::apply(geometry1, geometry2, strategy);
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}
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template <typename Geometry1, typename Geometry2>
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static inline bool apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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default_strategy)
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{
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typedef typename point_type<Geometry1>::type point_type1;
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typedef typename point_type<Geometry2>::type point_type2;
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typedef typename strategy::within::services::default_strategy
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<
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typename tag<Geometry1>::type,
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typename tag<Geometry2>::type,
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typename tag<Geometry1>::type,
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typename tag_cast<typename tag<Geometry2>::type, areal_tag>::type,
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typename tag_cast
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<
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typename cs_tag<point_type1>::type, spherical_tag
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>::type,
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typename tag_cast
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<
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typename cs_tag<point_type2>::type, spherical_tag
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>::type,
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Geometry1,
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Geometry2
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>::type strategy_type;
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return apply(geometry1, geometry2, strategy_type());
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}
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};
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} // namespace resolve_strategy
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namespace resolve_variant
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{
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template <typename Geometry1, typename Geometry2>
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struct within
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{
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template <typename Strategy>
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static inline bool apply(Geometry1 const& geometry1,
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Geometry2 const& geometry2,
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Strategy const& strategy)
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{
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concept::check<Geometry1 const>();
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concept::check<Geometry2 const>();
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assert_dimension_equal<Geometry1, Geometry2>();
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return resolve_strategy::within::apply(geometry1,
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geometry2,
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strategy);
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}
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};
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template <BOOST_VARIANT_ENUM_PARAMS(typename T), typename Geometry2>
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struct within<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>, Geometry2>
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{
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template <typename Strategy>
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struct visitor: boost::static_visitor<bool>
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{
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Geometry2 const& m_geometry2;
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Strategy const& m_strategy;
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visitor(Geometry2 const& geometry2, Strategy const& strategy):
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m_geometry2(geometry2),
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m_strategy(strategy)
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{}
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template <typename Geometry1>
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bool operator()(Geometry1 const& geometry1) const
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{
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return within<Geometry1, Geometry2>::apply(geometry1,
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m_geometry2,
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m_strategy);
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}
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};
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template <typename Strategy>
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static inline bool
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apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry1,
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Geometry2 const& geometry2,
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Strategy const& strategy)
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{
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return boost::apply_visitor(
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visitor<Strategy>(geometry2, strategy),
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geometry1
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);
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}
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};
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template <typename Geometry1, BOOST_VARIANT_ENUM_PARAMS(typename T)>
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struct within<Geometry1, boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
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{
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template <typename Strategy>
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struct visitor: boost::static_visitor<bool>
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{
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Geometry1 const& m_geometry1;
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Strategy const& m_strategy;
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visitor(Geometry1 const& geometry1, Strategy const& strategy):
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m_geometry1(geometry1),
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m_strategy(strategy)
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{}
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template <typename Geometry2>
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bool operator()(Geometry2 const& geometry2) const
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{
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return within<Geometry1, Geometry2>::apply(m_geometry1,
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geometry2,
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m_strategy);
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}
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};
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template <typename Strategy>
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static inline bool
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apply(Geometry1 const& geometry1,
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boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry2,
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Strategy const& strategy)
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{
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return boost::apply_visitor(
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visitor<Strategy>(geometry1, strategy),
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geometry2
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);
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}
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};
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template <
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BOOST_VARIANT_ENUM_PARAMS(typename T1),
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BOOST_VARIANT_ENUM_PARAMS(typename T2)
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>
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struct within<
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boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)>,
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boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)>
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>
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{
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template <typename Strategy>
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struct visitor: boost::static_visitor<bool>
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{
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Strategy const& m_strategy;
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visitor(Strategy const& strategy): m_strategy(strategy) {}
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template <typename Geometry1, typename Geometry2>
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bool operator()(Geometry1 const& geometry1,
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Geometry2 const& geometry2) const
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{
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return within<Geometry1, Geometry2>::apply(geometry1,
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geometry2,
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m_strategy);
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}
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};
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template <typename Strategy>
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static inline bool
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apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T1)> const& geometry1,
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boost::variant<BOOST_VARIANT_ENUM_PARAMS(T2)> const& geometry2,
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Strategy const& strategy)
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{
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return boost::apply_visitor(
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visitor<Strategy>(strategy),
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geometry1, geometry2
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);
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}
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};
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}
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/*!
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\brief \brief_check12{is completely inside}
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\ingroup within
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\details \details_check12{within, is completely inside}.
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\tparam Geometry1 \tparam_geometry
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\tparam Geometry2 \tparam_geometry
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\param geometry1 \param_geometry which might be within the second geometry
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\param geometry2 \param_geometry which might contain the first geometry
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\return true if geometry1 is completely contained within geometry2,
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else false
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\note The default strategy is used for within detection
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\qbk{[include reference/algorithms/within.qbk]}
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\qbk{
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[heading Example]
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[within]
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[within_output]
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}
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*/
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template<typename Geometry1, typename Geometry2>
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inline bool within(Geometry1 const& geometry1, Geometry2 const& geometry2)
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{
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return resolve_variant::within
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<
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Geometry1,
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Geometry2
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>::apply(geometry1, geometry2, default_strategy());
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}
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/*!
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\brief \brief_check12{is completely inside} \brief_strategy
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\ingroup within
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\details \details_check12{within, is completely inside}, \brief_strategy. \details_strategy_reasons
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\tparam Geometry1 \tparam_geometry
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\tparam Geometry2 \tparam_geometry
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\param geometry1 \param_geometry which might be within the second geometry
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\param geometry2 \param_geometry which might contain the first geometry
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\param strategy strategy to be used
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\return true if geometry1 is completely contained within geometry2,
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else false
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\qbk{distinguish,with strategy}
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\qbk{[include reference/algorithms/within.qbk]}
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\qbk{
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[heading Available Strategies]
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\* [link geometry.reference.strategies.strategy_within_winding Winding (coordinate system agnostic)]
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\* [link geometry.reference.strategies.strategy_within_franklin Franklin (cartesian)]
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\* [link geometry.reference.strategies.strategy_within_crossings_multiply Crossings Multiply (cartesian)]
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[heading Example]
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[within_strategy]
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[within_strategy_output]
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}
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*/
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template<typename Geometry1, typename Geometry2, typename Strategy>
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inline bool within(Geometry1 const& geometry1, Geometry2 const& geometry2,
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Strategy const& strategy)
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{
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return resolve_variant::within
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<
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Geometry1,
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Geometry2
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>::apply(geometry1, geometry2, strategy);
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}
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_WITHIN_HPP
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