ceph/src/boost/libs/geometry/include/boost/geometry/algorithms/detail/is_simple/debug_print_boundary_points.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2014-2015, Oracle and/or its affiliates.
   4
   5 // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
   6
   7 // Licensed under the Boost Software License version 1.0.
   8 // http://www.boost.org/users/license.html
   9
  10 #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_SIMPLE_DEBUG_PRINT_BOUNDARY_POINTS_HPP
  11 #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_SIMPLE_DEBUG_PRINT_BOUNDARY_POINTS_HPP
  12
  13 #ifdef BOOST_GEOMETRY_TEST_DEBUG
  14 #include <algorithm>
  15 #include <iostream>
  16 #include <vector>
  17
  18 #include <boost/range.hpp>
  19
  20 #include <boost/geometry/core/point_type.hpp>
  21 #include <boost/geometry/core/tag.hpp>
  22 #include <boost/geometry/core/tags.hpp>
  23
  24 #include <boost/geometry/util/range.hpp>
  25
  26 #include <boost/geometry/io/dsv/write.hpp>
  27
  28 #include <boost/geometry/policies/compare.hpp>
  29
  30 #include <boost/geometry/algorithms/equals.hpp>
  31 #include <boost/geometry/algorithms/not_implemented.hpp>
  32 #endif // BOOST_GEOMETRY_TEST_DEBUG
  33
  34
  35 namespace boost { namespace geometry
  36 {
  37
  38 namespace detail { namespace is_simple
  39 {
  40
  41
  42 #ifdef BOOST_GEOMETRY_TEST_DEBUG
  43 template <typename Linear, typename Tag = typename tag<Linear>::type>
  44 struct debug_boundary_points_printer
  45     : not_implemented<Linear>
  46 {};
  47
  48 template <typename Linestring>
  49 struct debug_boundary_points_printer<Linestring, linestring_tag>
  50 {
  51     static inline void apply(Linestring const& linestring)
  52     {
  53         std::cout << "boundary points: ";
  54         std::cout << " " << geometry::dsv(range::front(linestring));
  55         std::cout << " " << geometry::dsv(range::back(linestring));
  56         std::cout << std::endl << std::endl;
  57     }
  58 };
  59
  60 template <typename MultiLinestring>
  61 struct debug_boundary_points_printer<MultiLinestring, multi_linestring_tag>
  62 {
  63     static inline void apply(MultiLinestring const& multilinestring)
  64     {
  65         typedef typename point_type<MultiLinestring>::type point_type;
  66         typedef std::vector<point_type> point_vector;
  67
  68         point_vector boundary_points;
  69         for (typename boost::range_iterator<MultiLinestring const>::type it
  70                  = boost::begin(multilinestring);
  71              it != boost::end(multilinestring); ++it)
  72         {
  73             if ( boost::size(*it) > 1
  74                  && !geometry::equals(range::front(*it), range::back(*it)) )
  75             {
  76                 boundary_points.push_back( range::front(*it) );
  77                 boundary_points.push_back( range::back(*it) );
  78             }
  79         }
  80
  81         std::sort(boundary_points.begin(), boundary_points.end(),
  82                   geometry::less<point_type>());
  83
  84         std::cout << "boundary points: ";
  85         for (typename point_vector::const_iterator
  86                  pit = boundary_points.begin();
  87              pit != boundary_points.end(); ++pit)
  88         {
  89             std::cout << " " << geometry::dsv(*pit);
  90         }
  91         std::cout << std::endl << std::endl;
  92     }
  93 };
  94
  95
  96 template <typename Linear>
  97 inline void debug_print_boundary_points(Linear const& linear)
  98 {
  99     debug_boundary_points_printer<Linear>::apply(linear);
 100 }
 101 #else
 102 template <typename Linear>
 103 inline void debug_print_boundary_points(Linear const&)
 104 {
 105 }
 106 #endif // BOOST_GEOMETRY_TEST_DEBUG
 107
 108
 109 }} // namespace detail::is_simple
 110
 111 }} // namespace boost::geometry
 112
 113 #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_SIMPLE_DEBUG_PRINT_BOUNDARY_POINTS_HPP