118 lines
3.0 KiB
C++
118 lines
3.0 KiB
C++
// 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_SIMPLIFY_HPP
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#define BOOST_GEOMETRY_MULTI_ALGORITHMS_SIMPLIFY_HPP
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#include <boost/range.hpp>
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#include <boost/geometry/core/mutable_range.hpp>
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#include <boost/geometry/multi/core/tags.hpp>
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#include <boost/geometry/multi/algorithms/clear.hpp>
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#include <boost/geometry/algorithms/simplify.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 simplify
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{
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template<typename MultiGeometry, typename Strategy, typename Policy>
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struct simplify_multi
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{
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static inline void apply(MultiGeometry const& multi, MultiGeometry& out,
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double max_distance, Strategy const& strategy)
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{
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traits::resize<MultiGeometry>::apply(out, boost::size(multi));
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typename boost::range_iterator<MultiGeometry>::type it_out
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= boost::begin(out);
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for (typename boost::range_iterator<MultiGeometry const>::type it_in
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= boost::begin(multi);
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it_in != boost::end(multi);
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++it_in, ++it_out)
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{
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Policy::apply(*it_in, *it_out, max_distance, strategy);
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}
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}
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};
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}} // namespace detail::simplify
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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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template <typename MultiPoint, typename Strategy>
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struct simplify<multi_point_tag, MultiPoint, Strategy>
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: detail::simplify::simplify_copy
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<
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MultiPoint,
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Strategy
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>
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{};
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template <typename MultiLinestring, typename Strategy>
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struct simplify<multi_linestring_tag, MultiLinestring, Strategy>
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: detail::simplify::simplify_multi
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<
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MultiLinestring,
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Strategy,
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detail::simplify::simplify_range
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<
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typename boost::range_value<MultiLinestring>::type,
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Strategy,
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2
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>
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>
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{};
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template <typename MultiPolygon, typename Strategy>
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struct simplify<multi_polygon_tag, MultiPolygon, Strategy>
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: detail::simplify::simplify_multi
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<
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MultiPolygon,
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Strategy,
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detail::simplify::simplify_polygon
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<
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typename boost::range_value<MultiPolygon>::type,
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Strategy
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>
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>
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{};
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} // namespace dispatch
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#endif // DOXYGEN_NO_DISPATCH
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_MULTI_ALGORITHMS_SIMPLIFY_HPP
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