mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-21 12:21:31 +03:00
282 lines
8.3 KiB
C++
282 lines
8.3 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
|
|
|
|
// Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands.
|
|
|
|
// This file was modified by Oracle on 2014.
|
|
// Modifications copyright (c) 2014 Oracle and/or its affiliates.
|
|
|
|
// Contributed and/or modified by Menelaos Karavelas, 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_ALGORITHMS_UNION_HPP
|
|
#define BOOST_GEOMETRY_ALGORITHMS_UNION_HPP
|
|
|
|
|
|
#include <boost/range/metafunctions.hpp>
|
|
|
|
#include <boost/geometry/core/is_areal.hpp>
|
|
#include <boost/geometry/core/point_order.hpp>
|
|
#include <boost/geometry/core/reverse_dispatch.hpp>
|
|
#include <boost/geometry/geometries/concepts/check.hpp>
|
|
#include <boost/geometry/algorithms/not_implemented.hpp>
|
|
#include <boost/geometry/algorithms/detail/overlay/overlay.hpp>
|
|
#include <boost/geometry/policies/robustness/get_rescale_policy.hpp>
|
|
|
|
#include <boost/geometry/algorithms/detail/overlay/linear_linear.hpp>
|
|
#include <boost/geometry/algorithms/detail/overlay/pointlike_pointlike.hpp>
|
|
|
|
|
|
namespace boost { namespace geometry
|
|
{
|
|
|
|
#ifndef DOXYGEN_NO_DISPATCH
|
|
namespace dispatch
|
|
{
|
|
|
|
template
|
|
<
|
|
typename Geometry1, typename Geometry2, typename GeometryOut,
|
|
typename TagIn1 = typename tag<Geometry1>::type,
|
|
typename TagIn2 = typename tag<Geometry2>::type,
|
|
typename TagOut = typename tag<GeometryOut>::type,
|
|
bool Areal1 = geometry::is_areal<Geometry1>::value,
|
|
bool Areal2 = geometry::is_areal<Geometry2>::value,
|
|
bool ArealOut = geometry::is_areal<GeometryOut>::value,
|
|
bool Reverse1 = detail::overlay::do_reverse<geometry::point_order<Geometry1>::value>::value,
|
|
bool Reverse2 = detail::overlay::do_reverse<geometry::point_order<Geometry2>::value>::value,
|
|
bool ReverseOut = detail::overlay::do_reverse<geometry::point_order<GeometryOut>::value>::value,
|
|
bool Reverse = geometry::reverse_dispatch<Geometry1, Geometry2>::type::value
|
|
>
|
|
struct union_insert: not_implemented<TagIn1, TagIn2, TagOut>
|
|
{};
|
|
|
|
|
|
// If reversal is needed, perform it first
|
|
|
|
template
|
|
<
|
|
typename Geometry1, typename Geometry2, typename GeometryOut,
|
|
typename TagIn1, typename TagIn2, typename TagOut,
|
|
bool Areal1, bool Areal2, bool ArealOut,
|
|
bool Reverse1, bool Reverse2, bool ReverseOut
|
|
>
|
|
struct union_insert
|
|
<
|
|
Geometry1, Geometry2, GeometryOut,
|
|
TagIn1, TagIn2, TagOut,
|
|
Areal1, Areal2, ArealOut,
|
|
Reverse1, Reverse2, ReverseOut,
|
|
true
|
|
>: union_insert<Geometry2, Geometry1, GeometryOut>
|
|
{
|
|
template <typename RobustPolicy, typename OutputIterator, typename Strategy>
|
|
static inline OutputIterator apply(Geometry1 const& g1,
|
|
Geometry2 const& g2,
|
|
RobustPolicy const& robust_policy,
|
|
OutputIterator out,
|
|
Strategy const& strategy)
|
|
{
|
|
return union_insert
|
|
<
|
|
Geometry2, Geometry1, GeometryOut
|
|
>::apply(g2, g1, robust_policy, out, strategy);
|
|
}
|
|
};
|
|
|
|
|
|
template
|
|
<
|
|
typename Geometry1, typename Geometry2, typename GeometryOut,
|
|
typename TagIn1, typename TagIn2, typename TagOut,
|
|
bool Reverse1, bool Reverse2, bool ReverseOut
|
|
>
|
|
struct union_insert
|
|
<
|
|
Geometry1, Geometry2, GeometryOut,
|
|
TagIn1, TagIn2, TagOut,
|
|
true, true, true,
|
|
Reverse1, Reverse2, ReverseOut,
|
|
false
|
|
> : detail::overlay::overlay
|
|
<Geometry1, Geometry2, Reverse1, Reverse2, ReverseOut, GeometryOut, overlay_union>
|
|
{};
|
|
|
|
|
|
// dispatch for union of non-areal geometries
|
|
template
|
|
<
|
|
typename Geometry1, typename Geometry2, typename GeometryOut,
|
|
typename TagIn1, typename TagIn2, typename TagOut,
|
|
bool Reverse1, bool Reverse2, bool ReverseOut
|
|
>
|
|
struct union_insert
|
|
<
|
|
Geometry1, Geometry2, GeometryOut,
|
|
TagIn1, TagIn2, TagOut,
|
|
false, false, false,
|
|
Reverse1, Reverse2, ReverseOut,
|
|
false
|
|
> : union_insert
|
|
<
|
|
Geometry1, Geometry2, GeometryOut,
|
|
typename tag_cast<TagIn1, pointlike_tag, linear_tag>::type,
|
|
typename tag_cast<TagIn2, pointlike_tag, linear_tag>::type,
|
|
TagOut,
|
|
false, false, false,
|
|
Reverse1, Reverse2, ReverseOut,
|
|
false
|
|
>
|
|
{};
|
|
|
|
|
|
// dispatch for union of linear geometries
|
|
template
|
|
<
|
|
typename Linear1, typename Linear2, typename LineStringOut,
|
|
bool Reverse1, bool Reverse2, bool ReverseOut
|
|
>
|
|
struct union_insert
|
|
<
|
|
Linear1, Linear2, LineStringOut,
|
|
linear_tag, linear_tag, linestring_tag,
|
|
false, false, false,
|
|
Reverse1, Reverse2, ReverseOut,
|
|
false
|
|
> : detail::overlay::linear_linear_linestring
|
|
<
|
|
Linear1, Linear2, LineStringOut, overlay_union
|
|
>
|
|
{};
|
|
|
|
|
|
// dispatch for point-like geometries
|
|
template
|
|
<
|
|
typename PointLike1, typename PointLike2, typename PointOut,
|
|
bool Reverse1, bool Reverse2, bool ReverseOut
|
|
>
|
|
struct union_insert
|
|
<
|
|
PointLike1, PointLike2, PointOut,
|
|
pointlike_tag, pointlike_tag, point_tag,
|
|
false, false, false,
|
|
Reverse1, Reverse2, ReverseOut,
|
|
false
|
|
> : detail::overlay::union_pointlike_pointlike_point
|
|
<
|
|
PointLike1, PointLike2, PointOut
|
|
>
|
|
{};
|
|
|
|
|
|
} // namespace dispatch
|
|
#endif // DOXYGEN_NO_DISPATCH
|
|
|
|
#ifndef DOXYGEN_NO_DETAIL
|
|
namespace detail { namespace union_
|
|
{
|
|
|
|
/*!
|
|
\brief_calc2{union}
|
|
\ingroup union
|
|
\details \details_calc2{union_insert, spatial set theoretic union}.
|
|
\details_insert{union}
|
|
\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{union}
|
|
\return \return_out
|
|
*/
|
|
template
|
|
<
|
|
typename GeometryOut,
|
|
typename Geometry1,
|
|
typename Geometry2,
|
|
typename OutputIterator
|
|
>
|
|
inline OutputIterator union_insert(Geometry1 const& geometry1,
|
|
Geometry2 const& geometry2,
|
|
OutputIterator out)
|
|
{
|
|
concepts::check<Geometry1 const>();
|
|
concepts::check<Geometry2 const>();
|
|
concepts::check<GeometryOut>();
|
|
|
|
typedef typename geometry::rescale_overlay_policy_type
|
|
<
|
|
Geometry1,
|
|
Geometry2
|
|
>::type rescale_policy_type;
|
|
|
|
typedef intersection_strategies
|
|
<
|
|
typename cs_tag<GeometryOut>::type,
|
|
Geometry1,
|
|
Geometry2,
|
|
typename geometry::point_type<GeometryOut>::type,
|
|
rescale_policy_type
|
|
> strategy;
|
|
|
|
rescale_policy_type robust_policy
|
|
= geometry::get_rescale_policy<rescale_policy_type>(geometry1, geometry2);
|
|
|
|
return dispatch::union_insert
|
|
<
|
|
Geometry1, Geometry2, GeometryOut
|
|
>::apply(geometry1, geometry2, robust_policy, out, strategy());
|
|
}
|
|
|
|
|
|
}} // namespace detail::union_
|
|
#endif // DOXYGEN_NO_DETAIL
|
|
|
|
|
|
|
|
|
|
/*!
|
|
\brief Combines two geometries which each other
|
|
\ingroup union
|
|
\details \details_calc2{union, spatial set theoretic union}.
|
|
\tparam Geometry1 \tparam_geometry
|
|
\tparam Geometry2 \tparam_geometry
|
|
\tparam Collection output collection, either a multi-geometry,
|
|
or a std::vector<Geometry> / std::deque<Geometry> etc
|
|
\param geometry1 \param_geometry
|
|
\param geometry2 \param_geometry
|
|
\param output_collection the output collection
|
|
\note Called union_ because union is a reserved word.
|
|
|
|
\qbk{[include reference/algorithms/union.qbk]}
|
|
*/
|
|
template
|
|
<
|
|
typename Geometry1,
|
|
typename Geometry2,
|
|
typename Collection
|
|
>
|
|
inline void union_(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>();
|
|
|
|
detail::union_::union_insert<geometry_out>(geometry1, geometry2,
|
|
range::back_inserter(output_collection));
|
|
}
|
|
|
|
|
|
}} // namespace boost::geometry
|
|
|
|
|
|
#endif // BOOST_GEOMETRY_ALGORITHMS_UNION_HPP
|