123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425 |
- // Boost.Geometry Index
- //
- // Spatial query predicates
- //
- // Copyright (c) 2011-2018 Adam Wulkiewicz, Lodz, Poland.
- //
- // This file was modified by Oracle on 2019-2020.
- // Modifications copyright (c) 2019-2020 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)
- #ifndef BOOST_GEOMETRY_INDEX_PREDICATES_HPP
- #define BOOST_GEOMETRY_INDEX_PREDICATES_HPP
- #include <boost/geometry/index/detail/predicates.hpp>
- #include <boost/geometry/util/tuples.hpp>
- /*!
- \defgroup predicates Predicates (boost::geometry::index::)
- */
- namespace boost { namespace geometry { namespace index {
- /*!
- \brief Generate \c contains() predicate.
- Generate a predicate defining Value and Geometry relationship. With this
- predicate query returns indexed Values that contain passed Geometry.
- Value is returned by the query if <tt>bg::within(Geometry, Indexable)</tt>
- returns <tt>true</tt>.
- \par Example
- \verbatim
- bgi::query(spatial_index, bgi::contains(box), std::back_inserter(result));
- \endverbatim
- \ingroup predicates
- \tparam Geometry The Geometry type.
- \param g The Geometry object.
- */
- template <typename Geometry> inline
- detail::predicates::spatial_predicate<Geometry, detail::predicates::contains_tag, false>
- contains(Geometry const& g)
- {
- return detail::predicates::spatial_predicate
- <
- Geometry,
- detail::predicates::contains_tag,
- false
- >(g);
- }
- /*!
- \brief Generate \c covered_by() predicate.
- Generate a predicate defining Value and Geometry relationship. With this
- predicate query returns indexed Values that are covered by passed Geometry.
- Value is returned by the query if <tt>bg::covered_by(Indexable, Geometry)</tt>
- returns <tt>true</tt>.
- \par Example
- \verbatim
- bgi::query(spatial_index, bgi::covered_by(box), std::back_inserter(result));
- \endverbatim
- \ingroup predicates
- \tparam Geometry The Geometry type.
- \param g The Geometry object.
- */
- template <typename Geometry> inline
- detail::predicates::spatial_predicate<Geometry, detail::predicates::covered_by_tag, false>
- covered_by(Geometry const& g)
- {
- return detail::predicates::spatial_predicate
- <
- Geometry,
- detail::predicates::covered_by_tag,
- false
- >(g);
- }
- /*!
- \brief Generate \c covers() predicate.
- Generate a predicate defining Value and Geometry relationship. With this
- predicate query returns indexed Values that cover passed Geometry.
- Value is returned by the query if <tt>bg::covered_by(Geometry, Indexable)</tt>
- returns <tt>true</tt>.
- \par Example
- \verbatim
- bgi::query(spatial_index, bgi::covers(box), std::back_inserter(result));
- \endverbatim
- \ingroup predicates
- \tparam Geometry The Geometry type.
- \param g The Geometry object.
- */
- template <typename Geometry> inline
- detail::predicates::spatial_predicate<Geometry, detail::predicates::covers_tag, false>
- covers(Geometry const& g)
- {
- return detail::predicates::spatial_predicate
- <
- Geometry,
- detail::predicates::covers_tag,
- false
- >(g);
- }
- /*!
- \brief Generate \c disjoint() predicate.
- Generate a predicate defining Value and Geometry relationship. With this
- predicate query returns indexed Values that are disjoint with passed Geometry.
- Value is returned by the query if <tt>bg::disjoint(Indexable, Geometry)</tt>
- returns <tt>true</tt>.
- \par Example
- \verbatim
- bgi::query(spatial_index, bgi::disjoint(box), std::back_inserter(result));
- \endverbatim
- \ingroup predicates
- \tparam Geometry The Geometry type.
- \param g The Geometry object.
- */
- template <typename Geometry> inline
- detail::predicates::spatial_predicate<Geometry, detail::predicates::disjoint_tag, false>
- disjoint(Geometry const& g)
- {
- return detail::predicates::spatial_predicate
- <
- Geometry,
- detail::predicates::disjoint_tag,
- false
- >(g);
- }
- /*!
- \brief Generate \c intersects() predicate.
- Generate a predicate defining Value and Geometry relationship. With this
- predicate query returns indexed Values that intersect passed Geometry.
- Value is returned by the query if <tt>bg::intersects(Indexable, Geometry)</tt>
- returns <tt>true</tt>.
- \par Example
- \verbatim
- bgi::query(spatial_index, bgi::intersects(box), std::back_inserter(result));
- bgi::query(spatial_index, bgi::intersects(ring), std::back_inserter(result));
- bgi::query(spatial_index, bgi::intersects(polygon), std::back_inserter(result));
- \endverbatim
- \ingroup predicates
- \tparam Geometry The Geometry type.
- \param g The Geometry object.
- */
- template <typename Geometry> inline
- detail::predicates::spatial_predicate<Geometry, detail::predicates::intersects_tag, false>
- intersects(Geometry const& g)
- {
- return detail::predicates::spatial_predicate
- <
- Geometry,
- detail::predicates::intersects_tag,
- false
- >(g);
- }
- /*!
- \brief Generate \c overlaps() predicate.
- Generate a predicate defining Value and Geometry relationship. With this
- predicate query returns indexed Values that overlap passed Geometry.
- Value is returned by the query if <tt>bg::overlaps(Indexable, Geometry)</tt>
- returns <tt>true</tt>.
- \par Example
- \verbatim
- bgi::query(spatial_index, bgi::overlaps(box), std::back_inserter(result));
- \endverbatim
- \ingroup predicates
- \tparam Geometry The Geometry type.
- \param g The Geometry object.
- */
- template <typename Geometry> inline
- detail::predicates::spatial_predicate<Geometry, detail::predicates::overlaps_tag, false>
- overlaps(Geometry const& g)
- {
- return detail::predicates::spatial_predicate
- <
- Geometry,
- detail::predicates::overlaps_tag,
- false
- >(g);
- }
- #ifdef BOOST_GEOMETRY_INDEX_DETAIL_EXPERIMENTAL
- /*!
- \brief Generate \c touches() predicate.
- Generate a predicate defining Value and Geometry relationship. With this
- predicate query returns indexed Values that touch passed Geometry.
- Value is returned by the query if <tt>bg::touches(Indexable, Geometry)</tt>
- returns <tt>true</tt>.
- \ingroup predicates
- \tparam Geometry The Geometry type.
- \param g The Geometry object.
- */
- template <typename Geometry> inline
- detail::predicates::spatial_predicate<Geometry, detail::predicates::touches_tag, false>
- touches(Geometry const& g)
- {
- return detail::predicates::spatial_predicate
- <
- Geometry,
- detail::predicates::touches_tag,
- false
- >(g);
- }
- #endif // BOOST_GEOMETRY_INDEX_DETAIL_EXPERIMENTAL
- /*!
- \brief Generate \c within() predicate.
- Generate a predicate defining Value and Geometry relationship. With this
- predicate query returns indexed Values that are within passed Geometry.
- Value is returned by the query if <tt>bg::within(Indexable, Geometry)</tt>
- returns <tt>true</tt>.
- \par Example
- \verbatim
- bgi::query(spatial_index, bgi::within(box), std::back_inserter(result));
- \endverbatim
- \ingroup predicates
- \tparam Geometry The Geometry type.
- \param g The Geometry object.
- */
- template <typename Geometry> inline
- detail::predicates::spatial_predicate<Geometry, detail::predicates::within_tag, false>
- within(Geometry const& g)
- {
- return detail::predicates::spatial_predicate
- <
- Geometry,
- detail::predicates::within_tag,
- false
- >(g);
- }
- /*!
- \brief Generate satisfies() predicate.
- A wrapper around user-defined UnaryPredicate checking if Value should be returned by spatial query.
- \par Example
- \verbatim
- bool is_red(Value const& v) { return v.is_red(); }
- struct is_red_o {
- template <typename Value> bool operator()(Value const& v) { return v.is_red(); }
- }
- // ...
- rt.query(index::intersects(box) && index::satisfies(is_red),
- std::back_inserter(result));
- rt.query(index::intersects(box) && index::satisfies(is_red_o()),
- std::back_inserter(result));
- #ifndef BOOST_NO_CXX11_LAMBDAS
- rt.query(index::intersects(box) && index::satisfies([](Value const& v) { return v.is_red(); }),
- std::back_inserter(result));
- #endif
- \endverbatim
- \ingroup predicates
- \tparam UnaryPredicate A type of unary predicate function or function object.
- \param pred The unary predicate function or function object.
- */
- template <typename UnaryPredicate> inline
- detail::predicates::satisfies<UnaryPredicate, false>
- satisfies(UnaryPredicate const& pred)
- {
- return detail::predicates::satisfies<UnaryPredicate, false>(pred);
- }
- /*!
- \brief Generate nearest() predicate.
- When nearest predicate is passed to the query, k-nearest neighbour search will be performed.
- \c nearest() predicate takes a \c Geometry from which distances to \c Values are calculated
- and the maximum number of \c Values that should be returned. Internally
- boost::geometry::comparable_distance() is used to perform the calculation.
- \par Example
- \verbatim
- bgi::query(spatial_index, bgi::nearest(pt, 5), std::back_inserter(result));
- bgi::query(spatial_index, bgi::nearest(pt, 5) && bgi::intersects(box), std::back_inserter(result));
- bgi::query(spatial_index, bgi::nearest(box, 5), std::back_inserter(result));
- \endverbatim
- \warning
- Only one \c nearest() predicate may be used in a query.
- \ingroup predicates
- \param geometry The geometry from which distance is calculated.
- \param k The maximum number of values to return.
- */
- template <typename Geometry> inline
- detail::predicates::nearest<Geometry>
- nearest(Geometry const& geometry, unsigned k)
- {
- return detail::predicates::nearest<Geometry>(geometry, k);
- }
- #ifdef BOOST_GEOMETRY_INDEX_DETAIL_EXPERIMENTAL
- /*!
- \brief Generate path() predicate.
- When path predicate is passed to the query, the returned values are k values along the path closest to
- its begin. \c path() predicate takes a \c Segment or a \c Linestring defining the path and the maximum
- number of \c Values that should be returned.
- \par Example
- \verbatim
- bgi::query(spatial_index, bgi::path(segment, 5), std::back_inserter(result));
- bgi::query(spatial_index, bgi::path(linestring, 5) && bgi::intersects(box), std::back_inserter(result));
- \endverbatim
- \warning
- Only one distance predicate (\c nearest() or \c path()) may be used in a query.
- \ingroup predicates
- \param linestring The path along which distance is calculated.
- \param k The maximum number of values to return.
- */
- template <typename SegmentOrLinestring> inline
- detail::predicates::path<SegmentOrLinestring>
- path(SegmentOrLinestring const& linestring, unsigned k)
- {
- return detail::predicates::path<SegmentOrLinestring>(linestring, k);
- }
- #endif // BOOST_GEOMETRY_INDEX_DETAIL_EXPERIMENTAL
- namespace detail { namespace predicates {
- // operator! generators
- template <typename Fun, bool Negated> inline
- satisfies<Fun, !Negated>
- operator!(satisfies<Fun, Negated> const& p)
- {
- return satisfies<Fun, !Negated>(p);
- }
- template <typename Geometry, typename Tag, bool Negated> inline
- spatial_predicate<Geometry, Tag, !Negated>
- operator!(spatial_predicate<Geometry, Tag, Negated> const& p)
- {
- return spatial_predicate<Geometry, Tag, !Negated>(p.geometry);
- }
- // operator&& generators
- template <typename Pred1, typename Pred2> inline
- std::tuple<Pred1, Pred2>
- operator&&(Pred1 const& p1, Pred2 const& p2)
- {
- /*typedef std::conditional_t<is_predicate<Pred1>::value, Pred1, Pred1 const&> stored1;
- typedef std::conditional_t<is_predicate<Pred2>::value, Pred2, Pred2 const&> stored2;*/
- return std::tuple<Pred1, Pred2>(p1, p2);
- }
- template <typename ...Preds, typename Pred> inline
- typename geometry::tuples::push_back
- <
- std::tuple<Preds...>, Pred
- >::type
- operator&&(std::tuple<Preds...> const& t, Pred const& p)
- {
- //typedef std::conditional_t<is_predicate<Pred>::value, Pred, Pred const&> stored;
- return geometry::tuples::push_back
- <
- std::tuple<Preds...>, Pred
- >::apply(t, p);
- }
-
- }} // namespace detail::predicates
- }}} // namespace boost::geometry::index
- #endif // BOOST_GEOMETRY_INDEX_PREDICATES_HPP
|