diff options
Diffstat (limited to 'boost/geometry/algorithms/detail/is_simple/interface.hpp')
-rw-r--r-- | boost/geometry/algorithms/detail/is_simple/interface.hpp | 77 |
1 files changed, 69 insertions, 8 deletions
diff --git a/boost/geometry/algorithms/detail/is_simple/interface.hpp b/boost/geometry/algorithms/detail/is_simple/interface.hpp index 6d425232b0..af0127dc75 100644 --- a/boost/geometry/algorithms/detail/is_simple/interface.hpp +++ b/boost/geometry/algorithms/detail/is_simple/interface.hpp @@ -1,8 +1,9 @@ // Boost.Geometry (aka GGL, Generic Geometry Library) -// Copyright (c) 2014, Oracle and/or its affiliates. +// Copyright (c) 2014-2017, Oracle and/or its affiliates. // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle +// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle // Licensed under the Boost Software License version 1.0. // http://www.boost.org/users/license.html @@ -17,46 +18,106 @@ #include <boost/geometry/geometries/concepts/check.hpp> #include <boost/geometry/algorithms/dispatch/is_simple.hpp> +#include <boost/geometry/core/cs.hpp> +#include <boost/geometry/strategies/default_strategy.hpp> +#include <boost/geometry/strategies/intersection.hpp> namespace boost { namespace geometry { +namespace resolve_strategy +{ + +struct is_simple +{ + template <typename Geometry, typename Strategy> + static inline bool apply(Geometry const& geometry, + Strategy const& strategy) + { + return dispatch::is_simple<Geometry>::apply(geometry, strategy); + } + + template <typename Geometry> + static inline bool apply(Geometry const& geometry, + default_strategy) + { + // NOTE: Currently the strategy is only used for Linear geometries + typedef typename strategy::intersection::services::default_strategy + < + typename cs_tag<Geometry>::type + >::type strategy_type; + + return dispatch::is_simple<Geometry>::apply(geometry, strategy_type()); + } +}; -namespace resolve_variant { +} // namespace resolve_strategy + +namespace resolve_variant +{ template <typename Geometry> struct is_simple { - static inline bool apply(Geometry const& geometry) + template <typename Strategy> + static inline bool apply(Geometry const& geometry, Strategy const& strategy) { concepts::check<Geometry const>(); - return dispatch::is_simple<Geometry>::apply(geometry); + + return resolve_strategy::is_simple::apply(geometry, strategy); } }; template <BOOST_VARIANT_ENUM_PARAMS(typename T)> struct is_simple<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> > { + template <typename Strategy> struct visitor : boost::static_visitor<bool> { + Strategy const& m_strategy; + + visitor(Strategy const& strategy) + : m_strategy(strategy) + {} + template <typename Geometry> bool operator()(Geometry const& geometry) const { - return is_simple<Geometry>::apply(geometry); + return is_simple<Geometry>::apply(geometry, m_strategy); } }; + template <typename Strategy> static inline bool - apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry) + apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry, + Strategy const& strategy) { - return boost::apply_visitor(visitor(), geometry); + return boost::apply_visitor(visitor<Strategy>(strategy), geometry); } }; } // namespace resolve_variant +/*! +\brief \brief_check{is simple} +\ingroup is_simple +\tparam Geometry \tparam_geometry +\tparam Strategy \tparam_strategy{Is_simple} +\param geometry \param_geometry +\param strategy \param_strategy{is_simple} +\return \return_check{is simple} + +\qbk{distinguish,with strategy} +\qbk{[include reference/algorithms/is_simple.qbk]} +*/ +template <typename Geometry, typename Strategy> +inline bool is_simple(Geometry const& geometry, Strategy const& strategy) +{ + return resolve_variant::is_simple<Geometry>::apply(geometry, strategy); +} + /*! \brief \brief_check{is simple} @@ -70,7 +131,7 @@ struct is_simple<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> > template <typename Geometry> inline bool is_simple(Geometry const& geometry) { - return resolve_variant::is_simple<Geometry>::apply(geometry); + return resolve_variant::is_simple<Geometry>::apply(geometry, default_strategy()); } |