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from_double_link.hh
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26 
27 #ifndef SCRIBO_PRIMITIVE_GROUP_FROM_DOUBLE_LINK_HH
28 # define SCRIBO_PRIMITIVE_GROUP_FROM_DOUBLE_LINK_HH
29 
30 
35 
36 
37 # include <mln/core/concept/image.hh>
38 # include <mln/core/site_set/box.hh>
39 
40 # include <mln/accu/shape/bbox.hh>
41 
42 # include <mln/util/array.hh>
43 
44 # include <scribo/core/macros.hh>
45 
46 # include <scribo/core/object_groups.hh>
47 # include <scribo/core/component_set.hh>
48 # include <scribo/primitive/internal/find_root.hh>
49 # include <scribo/primitive/internal/is_link_valid.hh>
50 
51 
52 namespace scribo
53 {
54 
55  namespace primitive
56  {
57 
58  namespace group
59  {
60 
70  template <typename L>
71  object_groups<L>
72  from_double_link(const object_links<L>& left_link,
73  const object_links<L>& right_link);
74 
75 
76 
77 # ifndef MLN_INCLUDE_ONLY
78 
79 
80  template <typename L>
81  inline
82  object_groups<L>
83  from_double_link(const object_links<L>& left_link,
84  const object_links<L>& right_link)
85  {
86  mln_trace("scribo::primitive::group::from_double_link");
87 
88  mln_precondition(left_link.nelements() == right_link.nelements());
89 
90 
91  object_links<L> parent = left_link.duplicate();
92 
93  for_all_comps(i, left_link.components())
94  if (internal::is_link_valid(left_link, right_link, i))
95  {
96  component_id_t par = left_link(i);
97  if (par < i)
98  parent.update(par, i);
99  else
100  parent.update(i, par);
101  }
102 
103  object_groups<L> result = from_single_link(parent);
104 
105  return result;
106  }
107 
108 
109 # endif // ! MLN_INCLUDE_ONLY
110 
111 
112  } // end of namespace scribo::primitive::group
113 
114  } // end of namespace scribo::primitive
115 
116 } // end of namespace scribo
117 
118 #endif // ! SCRIBO_PRIMITIVE_GROUP_FROM_DOUBLE_LINK_HH