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117 lines
3.0 KiB
117 lines
3.0 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_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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