103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
|
|
|
|
// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands.
|
|
// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
|
|
// Copyright (c) 2009-2011 Mateusz Loskot, London, UK.
|
|
|
|
// 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_MULTI_ALGORITHMS_UNIQUE_HPP
|
|
#define BOOST_GEOMETRY_MULTI_ALGORITHMS_UNIQUE_HPP
|
|
|
|
|
|
#include <boost/range.hpp>
|
|
|
|
#include <boost/geometry/algorithms/unique.hpp>
|
|
#include <boost/geometry/multi/core/tags.hpp>
|
|
|
|
|
|
namespace boost { namespace geometry
|
|
{
|
|
|
|
|
|
#ifndef DOXYGEN_NO_DETAIL
|
|
namespace detail { namespace unique
|
|
{
|
|
|
|
|
|
template <typename MultiGeometry, typename ComparePolicy, typename Policy>
|
|
struct multi_unique
|
|
{
|
|
static inline void apply(MultiGeometry& multi, ComparePolicy const& compare)
|
|
{
|
|
for (typename boost::range_iterator<MultiGeometry>::type
|
|
it = boost::begin(multi);
|
|
it != boost::end(multi);
|
|
++it)
|
|
{
|
|
Policy::apply(*it, compare);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
}} // namespace detail::unique
|
|
#endif // DOXYGEN_NO_DETAIL
|
|
|
|
|
|
|
|
#ifndef DOXYGEN_NO_DISPATCH
|
|
namespace dispatch
|
|
{
|
|
|
|
|
|
// For points, unique is not applicable and does nothing
|
|
// (Note that it is not "spatially unique" but that it removes duplicate coordinates,
|
|
// like std::unique does). Spatially unique is "dissolve" which can (or will be)
|
|
// possible for multi-points as well, removing points at the same location.
|
|
|
|
|
|
template <typename MultiLineString, typename ComparePolicy>
|
|
struct unique<multi_linestring_tag, MultiLineString, ComparePolicy>
|
|
: detail::unique::multi_unique
|
|
<
|
|
MultiLineString,
|
|
ComparePolicy,
|
|
detail::unique::range_unique
|
|
<
|
|
typename boost::range_value<MultiLineString>::type,
|
|
ComparePolicy
|
|
>
|
|
>
|
|
{};
|
|
|
|
|
|
template <typename MultiPolygon, typename ComparePolicy>
|
|
struct unique<multi_polygon_tag, MultiPolygon, ComparePolicy>
|
|
: detail::unique::multi_unique
|
|
<
|
|
MultiPolygon,
|
|
ComparePolicy,
|
|
detail::unique::polygon_unique
|
|
<
|
|
typename boost::range_value<MultiPolygon>::type,
|
|
ComparePolicy
|
|
>
|
|
>
|
|
{};
|
|
|
|
|
|
} // namespace dispatch
|
|
#endif
|
|
|
|
|
|
}} // namespace boost::geometry
|
|
|
|
|
|
#endif // BOOST_GEOMETRY_MULTI_ALGORITHMS_UNIQUE_HPP
|