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core/routine/init.hh
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25 
26 #ifndef MLN_CORE_ROUTINE_INIT_HH
27 # define MLN_CORE_ROUTINE_INIT_HH
28 
33 
34 # include <mln/tag/init.hh>
35 # include <mln/geom/bbox.hh>
36 # include <mln/border/find.hh>
37 
38 # include <mln/core/routine/init.hxx>
39 
40 
41 namespace mln
42 {
43 
45 
46  // Forward declaration.
47 
48  template <typename Subject, typename T, typename M>
49  void init_(Subject, T& target, const Object<M>& model);
50 
51  // Easy and final versions.
52 
53  template <typename B, typename I>
54  void init_(tag::bbox_t, B& b, const Image<I>& ima);
55 
56  template <typename I>
57  void init_(tag::border_t, unsigned& bdr, const Image<I>& ima);
58 
59  template <typename I>
60  void init_(tag::domain_t, mln_domain(I)& pset, const Image<I>& ima);
61 
63 
64 # ifndef MLN_INCLUDE_ONLY
65 
66 
67  template <typename Subject, typename T, typename M>
68  inline
69  void init_(Subject, T&, const Object<M>&)
70  {
71  struct ERROR err_; // FIXME: Explicit msg.
72  }
73 
74  // Easy impl.
75 
76  template <typename B, typename I>
77  inline
78  void init_(tag::bbox_t, B& b, const Image<I>& ima)
79  {
80  b = geom::bbox(exact(ima).domain());
81  }
82 
83  template <typename I>
84  inline
85  void init_(tag::border_t, unsigned& bdr, const Image<I>& ima)
86  {
87  // 'Find' means that we want a value; this is not always the
88  // border thickness of 'ima', but it can be the thickness of
89  // a morphed / underlying image over which ima is constructed.
90  bdr = border::find(ima);
91  }
92 
93  template <typename I>
94  inline
95  void init_(tag::domain_t, mln_domain(I)& pset, const Image<I>& ima)
96  {
97  pset = exact(ima).domain();
98  }
99 
100 
101 # endif // ! MLN_INCLUDE_ONLY
102 
103 } // end of namespace mln
104 
105 
106 #endif // ! MLN_CORE_ROUTINE_INIT_HH