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