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cloud/save.hh
1 // Copyright (C) 2009, 2012 EPITA Research and Development Laboratory
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26 
27 #ifndef MLN_IO_CLOUD_SAVE_HH
28 # define MLN_IO_CLOUD_SAVE_HH
29 
33 
34 # include <iostream>
35 # include <fstream>
36 
37 # include <mln/core/concept/image.hh>
38 # include <mln/core/site_set/p_array.hh>
39 
40 namespace mln
41 {
42 
43  namespace io
44  {
45 
46  namespace cloud
47  {
48 
56  template <typename P>
57  void save(const p_array<P>& arr, const std::string& filename);
58 
59 
60 # ifndef MLN_INCLUDE_ONLY
61 
62  namespace internal
63  {
64 
65  template <typename P>
66  inline
67  void save_data(const p_array<P>& arr, std::ofstream& file)
68  {
69  mln_piter(p_array<P>) p(arr);
70  for_all(p)
71  {
72  std::ostringstream sline;
73  algebra::vec<P::dim,float> v = p.to_site().to_vec();
74  sline << v[0];
75  for (unsigned i = 1; i < P::dim; ++i)
76  sline << ' ' << v[i];
77  sline << std::endl;
78  file << sline.str();
79  }
80  }
81 
82  } // end of namespace mln::io::cloud::internal
83 
84 
85 
86  template <typename P>
87  void save(const p_array<P>& arr, const std::string& filename)
88  {
89  mln_trace("mln::io::cloud::save");
90 
91  std::ofstream file(filename.c_str());
92  if (! file)
93  {
94  std::cerr << "error: cannot open file '" << filename << "'!";
95  abort();
96  }
97 
98  internal::save_data(arr, file);
99 
100  }
101 
102 
103 # endif // ! MLN_INCLUDE_ONLY
104 
105  } // end of namespace mln::io::cloud
106 
107  } // end of namespace mln::io
108 
109 } // end of namespace mln
110 
111 #endif // ! MLN_IO_CLOUD_SAVE_HH