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QAHistManagerDef.cc
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1 // $Id: $
2 
11 #include "QAHistManagerDef.h"
12 
14 #include <fun4all/Fun4AllServer.h>
15 
16 #include <TAxis.h>
17 
18 #include <cassert>
19 #include <cmath>
20 #include <iosfwd> // for std
21 #include <vector>
22 
23 namespace QAHistManagerDef
24 {
28  {
31 
32  if (not hm)
33  {
34  // std::cout
35  // << "QAHistManagerDef::get_HistoManager - Making Fun4AllHistoManager EMCalAna_HISTOS"
36  // << std::endl;
38  se->registerHistoManager(hm);
39  }
40 
41  assert(hm);
42 
43  return hm;
44  }
45 
47  void saveQARootFile(const std::string &file_name)
48  {
49  getHistoManager()->dumpHistos(file_name);
50  }
51 
53  void useLogBins(TAxis *axis)
54  {
55  assert(axis);
56  assert(axis->GetXmin() > 0);
57  assert(axis->GetXmax() > 0);
58 
59  const int bins = axis->GetNbins();
60 
61  Axis_t from = log10(axis->GetXmin());
62  Axis_t to = log10(axis->GetXmax());
63  Axis_t width = (to - from) / bins;
64  std::vector<Axis_t> new_bins(bins + 1);
65 
66  for (int i = 0; i <= bins; i++)
67  {
68  new_bins[i] = pow(10, from + i * width);
69  }
70  axis->Set(bins, new_bins.data());
71  }
72 } // namespace QAHistManagerDef