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plot/load.hh
1 // Copyright (C) 2009, 2012 EPITA Research and Development Laboratory
2 // (LRDE)
3 //
4 // This file is part of Olena.
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20 // instantiate templates or use macros or inline functions from this
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26 
27 #ifndef MLN_IO_PLOT_LOAD_HH
28 # define MLN_IO_PLOT_LOAD_HH
29 
33 
34 # include <iostream>
35 # include <fstream>
36 # include <cstring>
37 # include <mln/core/image/image1d.hh>
38 # include <mln/metal/equal.hh>
39 # include <mln/util/array.hh>
40 # include <mln/value/int_u8.hh>
41 # include <mln/value/rgb8.hh>
42 
43 
44 namespace mln
45 {
46 
47  namespace io
48  {
49 
50  namespace plot
51  {
52 
60  template <typename I>
61  void load(util::array<I>& arr,
62  const std::string& filename);
63 
64 
65 # ifndef MLN_INCLUDE_ONLY
66 
67  template <typename I>
68  inline
69  void load(util::array<I>& arr, const std::string& filename)
70  {
71  mln_trace("mln::io::plot::load");
72 
73  arr.clear();
74  std::ifstream file_in(filename.c_str());
75 
76  // int MAX_LENGTH = 100;
77  // ISO C++ CAN'T COMPILE WITH VARIABLE LENGTH ARRAY !!
78  // THUS MAKE IT CONSTANT
79  const int MAX_LENGTH = 100;
80  char line[MAX_LENGTH];
81  char delims[] = " ";
82  char *result = NULL;
83  char *tmp_str = NULL;
84 
85  while (file_in.getline(line, MAX_LENGTH))
86  {
87  if (strlen(line) > 0 && line[0] != '#')
88  {
89  tmp_str = strtok(line, delims);
90  while (tmp_str != NULL)
91  {
92  result = tmp_str;
93  tmp_str = strtok(NULL, delims);
94  }
95  arr.append(atof(result)); // FIXME: type
96  }
97  }
98 
99  }
100 
101 
102 # endif // ! MLN_INCLUDE_ONLY
103 
104  } // end of namespace mln::io::plot
105 
106  } // end of namespace mln::io
107 
108 } // end of namespace mln
109 
110 
111 #endif // ! MLN_IO_PLOT_LOAD_HH