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102 lines
2.6 KiB
102 lines
2.6 KiB
// Boost.Geometry (aka GGL, Generic Geometry Library) |
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// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands. |
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// Copyright (c) 2008-2011 Bruno Lalande, Paris, France. |
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// Copyright (c) 2009-2011 Mateusz Loskot, London, UK. |
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library |
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. |
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// Use, modification and distribution is subject to the Boost Software License, |
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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#ifndef BOOST_GEOMETRY_MULTI_ALGORITHMS_UNIQUE_HPP |
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#define BOOST_GEOMETRY_MULTI_ALGORITHMS_UNIQUE_HPP |
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#include <boost/range.hpp> |
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#include <boost/geometry/algorithms/unique.hpp> |
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#include <boost/geometry/multi/core/tags.hpp> |
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namespace boost { namespace geometry |
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{ |
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#ifndef DOXYGEN_NO_DETAIL |
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namespace detail { namespace unique |
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{ |
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template <typename MultiGeometry, typename ComparePolicy, typename Policy> |
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struct multi_unique |
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{ |
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static inline void apply(MultiGeometry& multi, ComparePolicy const& compare) |
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{ |
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for (typename boost::range_iterator<MultiGeometry>::type |
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it = boost::begin(multi); |
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it != boost::end(multi); |
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++it) |
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{ |
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Policy::apply(*it, compare); |
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} |
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} |
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}; |
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}} // namespace detail::unique |
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#endif // DOXYGEN_NO_DETAIL |
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#ifndef DOXYGEN_NO_DISPATCH |
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namespace dispatch |
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{ |
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// For points, unique is not applicable and does nothing |
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// (Note that it is not "spatially unique" but that it removes duplicate coordinates, |
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// like std::unique does). Spatially unique is "dissolve" which can (or will be) |
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// possible for multi-points as well, removing points at the same location. |
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template <typename MultiLineString, typename ComparePolicy> |
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struct unique<multi_linestring_tag, MultiLineString, ComparePolicy> |
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: detail::unique::multi_unique |
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< |
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MultiLineString, |
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ComparePolicy, |
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detail::unique::range_unique |
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< |
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typename boost::range_value<MultiLineString>::type, |
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ComparePolicy |
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> |
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> |
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{}; |
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template <typename MultiPolygon, typename ComparePolicy> |
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struct unique<multi_polygon_tag, MultiPolygon, ComparePolicy> |
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: detail::unique::multi_unique |
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< |
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MultiPolygon, |
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ComparePolicy, |
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detail::unique::polygon_unique |
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< |
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typename boost::range_value<MultiPolygon>::type, |
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ComparePolicy |
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> |
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> |
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{}; |
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} // namespace dispatch |
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#endif |
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}} // namespace boost::geometry |
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#endif // BOOST_GEOMETRY_MULTI_ALGORITHMS_UNIQUE_HPP
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