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fun/p2p/mirror.hh
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25 
26 #ifndef MLN_FUN_P2P_MIRROR_HH
27 # define MLN_FUN_P2P_MIRROR_HH
28 
32 
33 # include <mln/core/concept/function.hh>
34 
35 namespace mln
36 {
37 
38  namespace fun
39  {
40 
41  namespace p2p
42  {
43 
44  template <typename B>
45  struct mirror : public Function_v2v< mirror<B> >
46  {
47  typedef mln_psite(B) result;
48 
49  mirror(const B& box);
50 
51  mln_psite(B)
52  operator()(const mln_psite(B)&) const;
53 
54  const B& box_;
55  };
56 
57 # ifndef MLN_INCLUDE_ONLY
58 
59  template <typename B>
60  inline
61  mirror<B>::mirror(const B& box)
62  : box_(box)
63  {
64  }
65 
66  template <typename B>
67  inline
68  mln_psite(B)
69  mirror<B>::operator()(const mln_psite(B)& p) const
70  {
71  mln_precondition(box_.has(p));
72 
73  mln_psite(B) r(p);
74  r[0] = box_.max()[0] - p[0];
75 
76  return r;
77  }
78 
79 # endif // ! MLN_INCLUDE_ONLY
80 
81  } // end of namespace mln::fun::p2p
82 
83  } // end of namespace mln::fun
84 
85 } // end of namespace mln
86 
87 #endif // ! MLN_FUN_P2P_MIRROR_HH