boost/geometry/multi/algorithms/detail/overlay/copy_segment_point.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
   4
   5 // Use, modification and distribution is subject to the Boost Software License,
   6 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8
   9 #ifndef BOOST_GEOMETRY_MULTI_ALGORITHMS_DETAIL_OVERLAY_COPY_SEGMENT_POINT_HPP
  10 #define BOOST_GEOMETRY_MULTI_ALGORITHMS_DETAIL_OVERLAY_COPY_SEGMENT_POINT_HPP
  11
  12
  13 #include <boost/range.hpp>
  14
  15 #include <boost/geometry/multi/core/tags.hpp>
  16 #include <boost/geometry/algorithms/detail/overlay/copy_segment_point.hpp>
  17
  18
  19 namespace boost { namespace geometry
  20 {
  21
  22
  23 #ifndef DOXYGEN_NO_DETAIL
  24 namespace detail { namespace copy_segments
  25 {
  26
  27
  28 template
  29 <
  30     typename MultiGeometry,
  31     typename SegmentIdentifier,
  32     typename PointOut,
  33     typename Policy
  34 >
  35 struct copy_segment_point_multi
  36 {
  37     static inline bool apply(MultiGeometry const& multi,
  38                 SegmentIdentifier const& seg_id, bool second,
  39                 PointOut& point)
  40     {
  41
  42         BOOST_ASSERT
  43             (
  44                 seg_id.multi_index >= 0
  45                 && seg_id.multi_index < int(boost::size(multi))
  46             );
  47
  48         // Call the single-version
  49         return Policy::apply(multi[seg_id.multi_index], seg_id, second, point);
  50     }
  51 };
  52
  53
  54 }} // namespace detail::copy_segments
  55 #endif // DOXYGEN_NO_DETAIL
  56
  57
  58 #ifndef DOXYGEN_NO_DISPATCH
  59 namespace dispatch
  60 {
  61
  62
  63 template
  64 <
  65     typename MultiGeometry,
  66     bool Reverse,
  67     typename SegmentIdentifier,
  68     typename PointOut
  69 >
  70 struct copy_segment_point
  71     <
  72         multi_polygon_tag,
  73         MultiGeometry,
  74         Reverse,
  75         SegmentIdentifier,
  76         PointOut
  77     >
  78     : detail::copy_segments::copy_segment_point_multi
  79         <
  80             MultiGeometry,
  81             SegmentIdentifier,
  82             PointOut,
  83             detail::copy_segments::copy_segment_point_polygon
  84                 <
  85                     typename boost::range_value<MultiGeometry>::type,
  86                     Reverse,
  87                     SegmentIdentifier,
  88                     PointOut
  89                 >
  90         >
  91 {};
  92
  93
  94 } // namespace dispatch
  95 #endif // DOXYGEN_NO_DISPATCH
  96
  97
  98 }} // namespace boost::geometry
  99
 100
 101 #endif // BOOST_GEOMETRY_MULTI_ALGORITHMS_DETAIL_OVERLAY_COPY_SEGMENT_POINT_HPP