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Olena  User documentation 2.1
An Image Processing Platform
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snake_fwd.cc
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
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11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
26 #include <mln/core/image/image2d.hh>
27 #include <mln/canvas/browsing/snake_fwd.hh>
28 #include <mln/fun/p2v/iota.hh>
29 #include <mln/debug/println.hh>
30 
31 
32 template <typename I, typename F>
33 struct assign_browsing_functor
34 {
35  typedef mln_site(I) S;
36  enum { dim = S::dim };
37 
38  I input;
39  F f;
40 
41  assign_browsing_functor(I& input, F f = F())
42  : input(input),
43  f(f)
44  {}
45 
46  mln_psite(I) p;
47 
48  void init() {}
49  void final() {}
50  void next()
51  {
52  input(p) = f(p);
53  mln_assertion(input(p) - 1 == p[0] * input.domain().ncols()
54  + ( (p[0] % 2) ? input.domain().ncols() - 1 - p[1] : p[1]));
55  }
56  void fwd() { next(); }
57  void bkd() { next(); }
58  void down() { next(); }
59 };
60 
61 namespace mln
62 {
63 
64  template <typename I, typename F, typename B>
65  void my_test(Image<I>& ima_,
66  const Function_v2v<F>& f_,
67  const Browsing<B>& browse_)
68  {
69  I& ima = exact(ima_);
70  const F& f = exact(f_);
71  const B& browse = exact(browse_);
72 
73  assign_browsing_functor<I, F> fun(ima, f);
74  browse(fun);
75  }
76 
77 }
78 
79 
80 int main()
81 {
82  using namespace mln;
83  image2d<unsigned> ima2(3, 3);
84 
86 }