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debug/histo.hh
1 // Copyright (C) 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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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
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25 
26 #ifndef MLN_DEBUG_HISTO_HH
27 # define MLN_DEBUG_HISTO_HH
28 
34 
35 # include <iostream>
36 # include <fstream>
37 # include <vector>
38 # include <string>
39 # include <mln/histo/array.hh>
40 # include <mln/core/image/image2d.hh>
41 # include <mln/draw/line.hh>
42 
43 
44 namespace mln
45 {
46 
47  namespace debug
48  {
49 
50 
51  template <typename T>
52  void
53  histo(const mln::histo::array<T>& h, const std::string& filename);
54 
55 
56 
57 # ifndef MLN_INCLUDE_ONLY
58 
59  template <typename T>
60  void
61  histo(const mln::histo::array<T>& h, const std::string& filename)
62  {
63  std::ofstream file(filename.c_str());
64  if (! file)
65  {
66  std::cerr << "error: cannot open file '" << filename << "'!";
67  std::abort();
68  }
69  mln_viter(value::set<T>) v(h.vset());
70  for_all(v)
71  file << v << ' ' << h(v) << std::endl;
72  }
73 
74 
75 # endif // ! MLN_INCLUDE_ONLY
76 
77  } // end of namespace mln::debug
78 
79 } // end of namespace mln
80 
81 
82 #endif // ! MLN_DEBUG_HISTO_HH