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cloud/save.hh
1 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
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5 // Olena is free software: you can redistribute it and/or modify it under
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15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
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17 // As a special exception, you may use this file as part of a free
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25 
26 #ifndef MLN_IO_CLOUD_SAVE_HH
27 # define MLN_IO_CLOUD_SAVE_HH
28 
32 
33 # include <iostream>
34 # include <fstream>
35 
36 # include <mln/core/concept/image.hh>
37 # include <mln/core/site_set/p_array.hh>
38 
39 namespace mln
40 {
41 
42  namespace io
43  {
44 
45  namespace cloud
46  {
47 
52  template <typename P>
53  void save(const p_array<P>& arr, const std::string& filename);
54 
55 
56 # ifndef MLN_INCLUDE_ONLY
57 
58  namespace internal
59  {
60 
61  template <typename P>
62  inline
63  void save_data(const p_array<P>& arr, std::ofstream& file)
64  {
65  mln_piter(p_array<P>) p(arr);
66  for_all(p)
67  {
68  std::ostringstream sline;
69  algebra::vec<P::dim,float> v = p.to_site().to_vec();
70  sline << v[0];
71  for (unsigned i = 1; i < P::dim; ++i)
72  sline << ' ' << v[i];
73  sline << std::endl;
74  file << sline.str();
75  }
76  }
77 
78  } // end of namespace mln::io::cloud::internal
79 
80 
81 
82  template <typename P>
83  void save(const p_array<P>& arr, const std::string& filename)
84  {
85  trace::entering("mln::io::cloud::save");
86 
87  std::ofstream file(filename.c_str());
88  if (! file)
89  {
90  std::cerr << "error: cannot open file '" << filename << "'!";
91  abort();
92  }
93 
94  internal::save_data(arr, file);
95 
96  trace::exiting("mln::io::cloud::save");
97  }
98 
99 
100 # endif // ! MLN_INCLUDE_ONLY
101 
102  } // end of namespace mln::io::cloud
103 
104  } // end of namespace mln::io
105 
106 } // end of namespace mln
107 
108 #endif // ! MLN_IO_CLOUD_SAVE_HH