// Boost.Geometry (aka GGL, Generic Geometry Library)
|
|
// Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands.
|
// Copyright (c) 2008-2015 Bruno Lalande, Paris, France.
|
// Copyright (c) 2009-2015 Mateusz Loskot, London, UK.
|
// Copyright (c) 2014-2015 Samuel Debionne, Grenoble, France.
|
|
// This file was modified by Oracle on 2015-2020.
|
// Modifications copyright (c) 2015-2020, Oracle and/or its affiliates.
|
|
// Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
|
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
|
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
|
|
// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
|
// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
|
|
// Distributed under 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_DETAIL_EXPAND_INTERFACE_HPP
|
#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_INTERFACE_HPP
|
|
#include <boost/variant/apply_visitor.hpp>
|
#include <boost/variant/static_visitor.hpp>
|
#include <boost/variant/variant_fwd.hpp>
|
|
#include <boost/geometry/core/coordinate_system.hpp>
|
#include <boost/geometry/core/tag.hpp>
|
#include <boost/geometry/core/tags.hpp>
|
|
#include <boost/geometry/geometries/concepts/check.hpp>
|
|
#include <boost/geometry/algorithms/dispatch/expand.hpp>
|
|
#include <boost/geometry/strategies/default_strategy.hpp>
|
#include <boost/geometry/strategies/detail.hpp>
|
#include <boost/geometry/strategies/expand/services.hpp>
|
#include <boost/geometry/strategy/expand.hpp>
|
|
|
namespace boost { namespace geometry
|
{
|
|
namespace resolve_strategy
|
{
|
|
template
|
<
|
typename Strategy,
|
bool IsUmbrella = strategies::detail::is_umbrella_strategy<Strategy>::value
|
>
|
struct expand
|
{
|
template <typename Box, typename Geometry>
|
static inline void apply(Box& box,
|
Geometry const& geometry,
|
Strategy const& strategy)
|
{
|
dispatch::expand<Box, Geometry>::apply(box, geometry, strategy);
|
}
|
};
|
|
template <typename Strategy>
|
struct expand<Strategy, false>
|
{
|
template <typename Box, typename Geometry>
|
static inline void apply(Box& box,
|
Geometry const& geometry,
|
Strategy const& strategy)
|
{
|
using strategies::expand::services::strategy_converter;
|
dispatch::expand
|
<
|
Box, Geometry
|
>::apply(box, geometry, strategy_converter<Strategy>::get(strategy));
|
}
|
};
|
|
template <>
|
struct expand<default_strategy, false>
|
{
|
template <typename Box, typename Geometry>
|
static inline void apply(Box& box,
|
Geometry const& geometry,
|
default_strategy)
|
{
|
typedef typename strategies::expand::services::default_strategy
|
<
|
Box, Geometry
|
>::type strategy_type;
|
|
dispatch::expand<Box, Geometry>::apply(box, geometry, strategy_type());
|
}
|
};
|
|
} //namespace resolve_strategy
|
|
|
namespace resolve_variant
|
{
|
|
template <typename Geometry>
|
struct expand
|
{
|
template <typename Box, typename Strategy>
|
static inline void apply(Box& box,
|
Geometry const& geometry,
|
Strategy const& strategy)
|
{
|
concepts::check<Box>();
|
concepts::check<Geometry const>();
|
concepts::check_concepts_and_equal_dimensions<Box, Geometry const>();
|
|
resolve_strategy::expand<Strategy>::apply(box, geometry, strategy);
|
}
|
};
|
|
template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
|
struct expand<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
|
{
|
template <typename Box, typename Strategy>
|
struct visitor: boost::static_visitor<void>
|
{
|
Box& m_box;
|
Strategy const& m_strategy;
|
|
visitor(Box& box, Strategy const& strategy)
|
: m_box(box)
|
, m_strategy(strategy)
|
{}
|
|
template <typename Geometry>
|
void operator()(Geometry const& geometry) const
|
{
|
return expand<Geometry>::apply(m_box, geometry, m_strategy);
|
}
|
};
|
|
template <class Box, typename Strategy>
|
static inline void
|
apply(Box& box,
|
boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry,
|
Strategy const& strategy)
|
{
|
return boost::apply_visitor(visitor<Box, Strategy>(box, strategy),
|
geometry);
|
}
|
};
|
|
} // namespace resolve_variant
|
|
|
/***
|
*!
|
\brief Expands a box using the extend (envelope) of another geometry (box, point)
|
\ingroup expand
|
\tparam Box type of the box
|
\tparam Geometry of second geometry, to be expanded with the box
|
\param box box to expand another geometry with, might be changed
|
\param geometry other geometry
|
\param strategy_less
|
\param strategy_greater
|
\note Strategy is currently ignored
|
*
|
template
|
<
|
typename Box, typename Geometry,
|
typename StrategyLess, typename StrategyGreater
|
>
|
inline void expand(Box& box, Geometry const& geometry,
|
StrategyLess const& strategy_less,
|
StrategyGreater const& strategy_greater)
|
{
|
concepts::check_concepts_and_equal_dimensions<Box, Geometry const>();
|
|
dispatch::expand<Box, Geometry>::apply(box, geometry);
|
}
|
***/
|
|
/*!
|
\brief Expands (with strategy)
|
\ingroup expand
|
\tparam Box type of the box
|
\tparam Geometry \tparam_geometry
|
\tparam Strategy \tparam_strategy{expand}
|
\param box box to be expanded using another geometry, mutable
|
\param geometry \param_geometry geometry which envelope (bounding box)
|
\param strategy \param_strategy{expand}
|
will be added to the box
|
|
\qbk{distinguish,with strategy}
|
\qbk{[include reference/algorithms/expand.qbk]}
|
*/
|
template <typename Box, typename Geometry, typename Strategy>
|
inline void expand(Box& box, Geometry const& geometry, Strategy const& strategy)
|
{
|
resolve_variant::expand<Geometry>::apply(box, geometry, strategy);
|
}
|
|
/*!
|
\brief Expands a box using the bounding box (envelope) of another geometry
|
(box, point)
|
\ingroup expand
|
\tparam Box type of the box
|
\tparam Geometry \tparam_geometry
|
\param box box to be expanded using another geometry, mutable
|
\param geometry \param_geometry geometry which envelope (bounding box) will be
|
added to the box
|
|
\qbk{[include reference/algorithms/expand.qbk]}
|
*/
|
template <typename Box, typename Geometry>
|
inline void expand(Box& box, Geometry const& geometry)
|
{
|
resolve_variant::expand<Geometry>::apply(box, geometry, default_strategy());
|
}
|
|
}} // namespace boost::geometry
|
|
#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_EXPAND_INTERFACE_HPP
|
