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find_graph_link.hh
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26 
27 #ifndef SCRIBO_PRIMITIVE_INTERNAL_FIND_GRAPH_LINK_HH
28 # define SCRIBO_PRIMITIVE_INTERNAL_FIND_GRAPH_LINK_HH
29 
33 
34 # include <mln/core/concept/image.hh>
35 # include <mln/core/concept/graph.hh>
36 
37 //FIXME: not generic.
38 # include <mln/core/alias/dpoint2d.hh>
39 
40 # include <mln/math/abs.hh>
41 
42 # include <mln/util/array.hh>
43 
44 
45 # include <scribo/core/component_set.hh>
46 
47 # include <scribo/primitive/internal/update_graph_link.hh>
48 
49 
50 namespace scribo
51 {
52 
53  namespace primitive
54  {
55 
56  namespace internal
57  {
58 
66  //
67  template <typename G, typename L>
68  void
69  find_graph_link(Graph<G>& g_,
70  const component_set<L>& comps,
71  unsigned current_comp,
72  int dmax,
73  const mln_site(L)& c);
74 
75 # ifndef MLN_INCLUDE_ONLY
76 
77  template <typename G, typename L>
78  void
79  find_graph_link(Graph<G>& g_,
80  const component_set<L>& comps,
81  unsigned current_comp,
82  int dmax,
83  const mln_site(L)& c)
84  {
85  mln_trace("scribo::primitive::internal::find_graph_link");
86 
87  G& g = exact(g_);
88  mln_precondition(g.is_valid());
89 
92  mln_site(L) p = c + right;
93 
94  const L& lbl = comps.labeled_image();
95 
96  while (comps.domain().has(p) && (lbl(p) == literal::zero
97  || lbl(p) == current_comp)
98  && math::abs(p.col() - c.col()) < dmax)
99  ++p.col();
100 
101  update_graph_link(comps, g, p, c, current_comp, dmax);
102 
103  }
104 
105 # endif // MLN_INCLUDE_ONLY
106 
107  } // end of namespace scribo::primitive::internal
108 
109  } // end of namespace scribo::primitive
110 
111 } // end of namespace scribo
112 
113 
114 #endif // ! SCRIBO_PRIMITIVE_INTERNAL_FIND_GRAPH_LINK_HH