ecency-mobile/ios/Pods/boost-for-react-native/boost/geometry/algorithms/difference.hpp

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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
// 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_ALGORITHMS_DIFFERENCE_HPP
#define BOOST_GEOMETRY_ALGORITHMS_DIFFERENCE_HPP
#include <algorithm>
#include <boost/geometry/algorithms/detail/overlay/intersection_insert.hpp>
#include <boost/geometry/policies/robustness/get_rescale_policy.hpp>
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace difference
{
/*!
\brief_calc2{difference} \brief_strategy
\ingroup difference
\details \details_calc2{difference_insert, spatial set theoretic difference}
\brief_strategy. \details_inserter{difference}
\tparam GeometryOut output geometry type, must be specified
\tparam Geometry1 \tparam_geometry
\tparam Geometry2 \tparam_geometry
\tparam OutputIterator output iterator
\tparam Strategy \tparam_strategy_overlay
\param geometry1 \param_geometry
\param geometry2 \param_geometry
\param out \param_out{difference}
\param strategy \param_strategy{difference}
\return \return_out
\qbk{distinguish,with strategy}
*/
template
<
typename GeometryOut,
typename Geometry1,
typename Geometry2,
typename RobustPolicy,
typename OutputIterator,
typename Strategy
>
inline OutputIterator difference_insert(Geometry1 const& geometry1,
Geometry2 const& geometry2,
RobustPolicy const& robust_policy,
OutputIterator out,
Strategy const& strategy)
{
concepts::check<Geometry1 const>();
concepts::check<Geometry2 const>();
concepts::check<GeometryOut>();
return geometry::dispatch::intersection_insert
<
Geometry1, Geometry2,
GeometryOut,
overlay_difference,
geometry::detail::overlay::do_reverse<geometry::point_order<Geometry1>::value>::value,
geometry::detail::overlay::do_reverse<geometry::point_order<Geometry2>::value, true>::value
>::apply(geometry1, geometry2, robust_policy, out, strategy);
}
/*!
\brief_calc2{difference}
\ingroup difference
\details \details_calc2{difference_insert, spatial set theoretic difference}.
\details_insert{difference}
\tparam GeometryOut output geometry type, must be specified
\tparam Geometry1 \tparam_geometry
\tparam Geometry2 \tparam_geometry
\tparam OutputIterator output iterator
\param geometry1 \param_geometry
\param geometry2 \param_geometry
\param out \param_out{difference}
\return \return_out
\qbk{[include reference/algorithms/difference_insert.qbk]}
*/
template
<
typename GeometryOut,
typename Geometry1,
typename Geometry2,
typename RobustPolicy,
typename OutputIterator
>
inline OutputIterator difference_insert(Geometry1 const& geometry1,
Geometry2 const& geometry2,
RobustPolicy const& robust_policy,
OutputIterator out)
{
concepts::check<Geometry1 const>();
concepts::check<Geometry2 const>();
concepts::check<GeometryOut>();
typedef intersection_strategies
<
typename cs_tag<GeometryOut>::type,
Geometry1,
Geometry2,
typename geometry::point_type<GeometryOut>::type,
RobustPolicy
> strategy;
return difference_insert<GeometryOut>(geometry1, geometry2,
robust_policy, out, strategy());
}
}} // namespace detail::difference
#endif // DOXYGEN_NO_DETAIL
/*!
\brief_calc2{difference}
\ingroup difference
\details \details_calc2{difference, spatial set theoretic difference}.
\tparam Geometry1 \tparam_geometry
\tparam Geometry2 \tparam_geometry
\tparam Collection \tparam_output_collection
\param geometry1 \param_geometry
\param geometry2 \param_geometry
\param output_collection the output collection
\qbk{[include reference/algorithms/difference.qbk]}
*/
template
<
typename Geometry1,
typename Geometry2,
typename Collection
>
inline void difference(Geometry1 const& geometry1,
Geometry2 const& geometry2, Collection& output_collection)
{
concepts::check<Geometry1 const>();
concepts::check<Geometry2 const>();
typedef typename boost::range_value<Collection>::type geometry_out;
concepts::check<geometry_out>();
typedef typename geometry::rescale_overlay_policy_type
<
Geometry1,
Geometry2
>::type rescale_policy_type;
rescale_policy_type robust_policy
= geometry::get_rescale_policy<rescale_policy_type>(geometry1, geometry2);
detail::difference::difference_insert<geometry_out>(
geometry1, geometry2, robust_policy,
range::back_inserter(output_collection));
}
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ALGORITHMS_DIFFERENCE_HPP