371 lines
11 KiB
C++
371 lines
11 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
|
|
|
|
// Copyright (c) 2007-2014 Barend Gehrels, Amsterdam, the Netherlands.
|
|
// Copyright (c) 2008-2014 Bruno Lalande, Paris, France.
|
|
// Copyright (c) 2009-2014 Mateusz Loskot, London, UK.
|
|
|
|
// 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
|
|
// 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.
|
|
|
|
// 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_APPEND_HPP
|
|
#define BOOST_GEOMETRY_ALGORITHMS_APPEND_HPP
|
|
|
|
|
|
#include <boost/range.hpp>
|
|
|
|
#include <boost/variant/apply_visitor.hpp>
|
|
#include <boost/variant/static_visitor.hpp>
|
|
#include <boost/variant/variant_fwd.hpp>
|
|
|
|
#include <boost/geometry/algorithms/num_interior_rings.hpp>
|
|
#include <boost/geometry/algorithms/detail/convert_point_to_point.hpp>
|
|
#include <boost/geometry/core/access.hpp>
|
|
#include <boost/geometry/core/mutable_range.hpp>
|
|
#include <boost/geometry/core/point_type.hpp>
|
|
#include <boost/geometry/core/tags.hpp>
|
|
#include <boost/geometry/geometries/concepts/check.hpp>
|
|
#include <boost/geometry/geometries/variant.hpp>
|
|
#include <boost/geometry/util/range.hpp>
|
|
|
|
|
|
namespace boost { namespace geometry
|
|
{
|
|
|
|
|
|
#ifndef DOXYGEN_NO_DETAIL
|
|
namespace detail { namespace append
|
|
{
|
|
|
|
template <typename Geometry, typename Point>
|
|
struct append_no_action
|
|
{
|
|
static inline void apply(Geometry& , Point const& ,
|
|
int = 0, int = 0)
|
|
{
|
|
}
|
|
};
|
|
|
|
template <typename Geometry, typename Point>
|
|
struct append_point
|
|
{
|
|
static inline void apply(Geometry& geometry, Point const& point,
|
|
int = 0, int = 0)
|
|
{
|
|
typename geometry::point_type<Geometry>::type copy;
|
|
geometry::detail::conversion::convert_point_to_point(point, copy);
|
|
traits::push_back<Geometry>::apply(geometry, copy);
|
|
}
|
|
};
|
|
|
|
|
|
template <typename Geometry, typename Range>
|
|
struct append_range
|
|
{
|
|
typedef typename boost::range_value<Range>::type point_type;
|
|
|
|
static inline void apply(Geometry& geometry, Range const& range,
|
|
int = 0, int = 0)
|
|
{
|
|
for (typename boost::range_iterator<Range const>::type
|
|
it = boost::begin(range);
|
|
it != boost::end(range);
|
|
++it)
|
|
{
|
|
append_point<Geometry, point_type>::apply(geometry, *it);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
template <typename Polygon, typename Point>
|
|
struct point_to_polygon
|
|
{
|
|
typedef typename ring_type<Polygon>::type ring_type;
|
|
|
|
static inline void apply(Polygon& polygon, Point const& point,
|
|
int ring_index, int = 0)
|
|
{
|
|
if (ring_index == -1)
|
|
{
|
|
append_point<ring_type, Point>::apply(
|
|
exterior_ring(polygon), point);
|
|
}
|
|
else if (ring_index < int(num_interior_rings(polygon)))
|
|
{
|
|
append_point<ring_type, Point>::apply(
|
|
range::at(interior_rings(polygon), ring_index), point);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
template <typename Polygon, typename Range>
|
|
struct range_to_polygon
|
|
{
|
|
typedef typename ring_type<Polygon>::type ring_type;
|
|
|
|
static inline void apply(Polygon& polygon, Range const& range,
|
|
int ring_index, int = 0)
|
|
{
|
|
if (ring_index == -1)
|
|
{
|
|
append_range<ring_type, Range>::apply(
|
|
exterior_ring(polygon), range);
|
|
}
|
|
else if (ring_index < int(num_interior_rings(polygon)))
|
|
{
|
|
append_range<ring_type, Range>::apply(
|
|
range::at(interior_rings(polygon), ring_index), range);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
}} // namespace detail::append
|
|
#endif // DOXYGEN_NO_DETAIL
|
|
|
|
|
|
#ifndef DOXYGEN_NO_DISPATCH
|
|
namespace dispatch
|
|
{
|
|
|
|
namespace splitted_dispatch
|
|
{
|
|
|
|
template <typename Tag, typename Geometry, typename Point>
|
|
struct append_point
|
|
: detail::append::append_no_action<Geometry, Point>
|
|
{};
|
|
|
|
template <typename Geometry, typename Point>
|
|
struct append_point<linestring_tag, Geometry, Point>
|
|
: detail::append::append_point<Geometry, Point>
|
|
{};
|
|
|
|
template <typename Geometry, typename Point>
|
|
struct append_point<ring_tag, Geometry, Point>
|
|
: detail::append::append_point<Geometry, Point>
|
|
{};
|
|
|
|
|
|
template <typename Polygon, typename Point>
|
|
struct append_point<polygon_tag, Polygon, Point>
|
|
: detail::append::point_to_polygon<Polygon, Point>
|
|
{};
|
|
|
|
|
|
template <typename Tag, typename Geometry, typename Range>
|
|
struct append_range
|
|
: detail::append::append_no_action<Geometry, Range>
|
|
{};
|
|
|
|
template <typename Geometry, typename Range>
|
|
struct append_range<linestring_tag, Geometry, Range>
|
|
: detail::append::append_range<Geometry, Range>
|
|
{};
|
|
|
|
template <typename Geometry, typename Range>
|
|
struct append_range<ring_tag, Geometry, Range>
|
|
: detail::append::append_range<Geometry, Range>
|
|
{};
|
|
|
|
|
|
template <typename Polygon, typename Range>
|
|
struct append_range<polygon_tag, Polygon, Range>
|
|
: detail::append::range_to_polygon<Polygon, Range>
|
|
{};
|
|
|
|
} // namespace splitted_dispatch
|
|
|
|
|
|
// Default: append a range (or linestring or ring or whatever) to any geometry
|
|
template
|
|
<
|
|
typename Geometry, typename RangeOrPoint,
|
|
typename TagRangeOrPoint = typename tag<RangeOrPoint>::type
|
|
>
|
|
struct append
|
|
: splitted_dispatch::append_range<typename tag<Geometry>::type, Geometry, RangeOrPoint>
|
|
{};
|
|
|
|
// Specialization for point to append a point to any geometry
|
|
template <typename Geometry, typename RangeOrPoint>
|
|
struct append<Geometry, RangeOrPoint, point_tag>
|
|
: splitted_dispatch::append_point<typename tag<Geometry>::type, Geometry, RangeOrPoint>
|
|
{};
|
|
|
|
} // namespace dispatch
|
|
#endif // DOXYGEN_NO_DISPATCH
|
|
|
|
#ifndef DOXYGEN_NO_DETAIL
|
|
namespace detail { namespace append
|
|
{
|
|
|
|
template <typename MultiGeometry, typename RangeOrPoint>
|
|
struct append_to_multigeometry
|
|
{
|
|
static inline void apply(MultiGeometry& multigeometry,
|
|
RangeOrPoint const& range_or_point,
|
|
int ring_index, int multi_index)
|
|
{
|
|
|
|
dispatch::append
|
|
<
|
|
typename boost::range_value<MultiGeometry>::type,
|
|
RangeOrPoint
|
|
>::apply(range::at(multigeometry, multi_index), range_or_point, ring_index);
|
|
}
|
|
};
|
|
|
|
}} // namespace detail::append
|
|
#endif // DOXYGEN_NO_DETAIL
|
|
|
|
#ifndef DOXYGEN_NO_DISPATCH
|
|
namespace dispatch
|
|
{
|
|
|
|
namespace splitted_dispatch
|
|
{
|
|
|
|
template <typename Geometry, typename Point>
|
|
struct append_point<multi_point_tag, Geometry, Point>
|
|
: detail::append::append_point<Geometry, Point>
|
|
{};
|
|
|
|
template <typename Geometry, typename Range>
|
|
struct append_range<multi_point_tag, Geometry, Range>
|
|
: detail::append::append_range<Geometry, Range>
|
|
{};
|
|
|
|
template <typename MultiGeometry, typename RangeOrPoint>
|
|
struct append_point<multi_linestring_tag, MultiGeometry, RangeOrPoint>
|
|
: detail::append::append_to_multigeometry<MultiGeometry, RangeOrPoint>
|
|
{};
|
|
|
|
template <typename MultiGeometry, typename RangeOrPoint>
|
|
struct append_range<multi_linestring_tag, MultiGeometry, RangeOrPoint>
|
|
: detail::append::append_to_multigeometry<MultiGeometry, RangeOrPoint>
|
|
{};
|
|
|
|
template <typename MultiGeometry, typename RangeOrPoint>
|
|
struct append_point<multi_polygon_tag, MultiGeometry, RangeOrPoint>
|
|
: detail::append::append_to_multigeometry<MultiGeometry, RangeOrPoint>
|
|
{};
|
|
|
|
template <typename MultiGeometry, typename RangeOrPoint>
|
|
struct append_range<multi_polygon_tag, MultiGeometry, RangeOrPoint>
|
|
: detail::append::append_to_multigeometry<MultiGeometry, RangeOrPoint>
|
|
{};
|
|
|
|
} // namespace splitted_dispatch
|
|
|
|
} // namespace dispatch
|
|
#endif // DOXYGEN_NO_DISPATCH
|
|
|
|
|
|
namespace resolve_variant {
|
|
|
|
template <typename Geometry>
|
|
struct append
|
|
{
|
|
template <typename RangeOrPoint>
|
|
static inline void apply(Geometry& geometry,
|
|
RangeOrPoint const& range_or_point,
|
|
int ring_index,
|
|
int multi_index)
|
|
{
|
|
concepts::check<Geometry>();
|
|
dispatch::append<Geometry, RangeOrPoint>::apply(geometry,
|
|
range_or_point,
|
|
ring_index,
|
|
multi_index);
|
|
}
|
|
};
|
|
|
|
|
|
template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
|
|
struct append<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
|
|
{
|
|
template <typename RangeOrPoint>
|
|
struct visitor: boost::static_visitor<void>
|
|
{
|
|
RangeOrPoint const& m_range_or_point;
|
|
int m_ring_index;
|
|
int m_multi_index;
|
|
|
|
visitor(RangeOrPoint const& range_or_point,
|
|
int ring_index,
|
|
int multi_index):
|
|
m_range_or_point(range_or_point),
|
|
m_ring_index(ring_index),
|
|
m_multi_index(multi_index)
|
|
{}
|
|
|
|
template <typename Geometry>
|
|
void operator()(Geometry& geometry) const
|
|
{
|
|
append<Geometry>::apply(geometry,
|
|
m_range_or_point,
|
|
m_ring_index,
|
|
m_multi_index);
|
|
}
|
|
};
|
|
|
|
template <typename RangeOrPoint>
|
|
static inline void apply(boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>& variant_geometry,
|
|
RangeOrPoint const& range_or_point,
|
|
int ring_index,
|
|
int multi_index)
|
|
{
|
|
boost::apply_visitor(
|
|
visitor<RangeOrPoint>(
|
|
range_or_point,
|
|
ring_index,
|
|
multi_index
|
|
),
|
|
variant_geometry
|
|
);
|
|
}
|
|
};
|
|
|
|
} // namespace resolve_variant;
|
|
|
|
|
|
/*!
|
|
\brief Appends one or more points to a linestring, ring, polygon, multi-geometry
|
|
\ingroup append
|
|
\tparam Geometry \tparam_geometry
|
|
\tparam RangeOrPoint Either a range or a point, fullfilling Boost.Range concept or Boost.Geometry Point Concept
|
|
\param geometry \param_geometry
|
|
\param range_or_point The point or range to add
|
|
\param ring_index The index of the ring in case of a polygon:
|
|
exterior ring (-1, the default) or interior ring index
|
|
\param multi_index The index of the geometry to which the points are appended
|
|
|
|
\qbk{[include reference/algorithms/append.qbk]}
|
|
}
|
|
*/
|
|
template <typename Geometry, typename RangeOrPoint>
|
|
inline void append(Geometry& geometry, RangeOrPoint const& range_or_point,
|
|
int ring_index = -1, int multi_index = 0)
|
|
{
|
|
resolve_variant::append<Geometry>
|
|
::apply(geometry, range_or_point, ring_index, multi_index);
|
|
}
|
|
|
|
|
|
}} // namespace boost::geometry
|
|
|
|
|
|
#endif // BOOST_GEOMETRY_ALGORITHMS_APPEND_HPP
|