| Geant4 Cross Reference |
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25 //
26
27 // Author: Ivana Hrivnacova, 22/08/2013 (ivana@ipno.in2p3.fr)
28
29 #include "G4BinScheme.hh"
30 #include "G4AnalysisUtilities.hh"
31
32 namespace G4Analysis
33 {
34
35 //_____________________________________________________________________________
36 G4BinScheme GetBinScheme(const G4String& binSchemeName)
37 {
38 if (binSchemeName == "linear") return G4BinScheme::kLinear;
39 if (binSchemeName == "log") return G4BinScheme::kLog;
40 if (binSchemeName == "user") return G4BinScheme::kUser;
41
42 // No other name is supported
43 Warn("\"" + binSchemeName + "\" binning scheme is not supported.\n"
44 "Linear binning will be applied.", kNamespaceName, "GetBinScheme");
45
46 return G4BinScheme::kLinear;
47 }
48
49 //_____________________________________________________________________________
50 void ComputeEdges(G4int nbins, G4double xmin, G4double xmax,
51 G4double unit, G4Fcn fcn, G4BinScheme binScheme,
52 std::vector<G4double>& edges)
53 {
54 // Compute edges from parameters
55
56 if ( binScheme == G4BinScheme::kUser ) {
57 // This call should never happen for user bin scheme
58 Warn("There is no need to compute edges for G4BinScheme::kUser\n"
59 "Call is ignored.", kNamespaceName, "GetBinScheme");
60 return;
61 }
62
63 if (unit == 0.) {
64 // Should never happen
65 Warn("Illegal unit value (0), 1. will be used instead",
66 kNamespaceName, "ComputeEdges");
67 unit = 1.;
68 }
69
70 if (nbins == 0) {
71 // Should never happen
72 Warn("Illegal number of nbins value (0), call will be ignored",
73 kNamespaceName, "ComputeEdges");
74 return;
75 }
76
77 // Apply units
78 auto xumin = xmin/unit;
79 auto xumax = xmax/unit;
80
81 if ( binScheme == G4BinScheme::kLinear ) {
82 auto dx = (fcn(xumax) - fcn(xumin) ) / nbins;
83 auto binValue = fcn(xumin);
84 while ( G4int(edges.size()) <= nbins ) { // Loop checking, 23.06.2015, I. Hrivnacova
85 edges.push_back(binValue);
86 binValue += dx;
87 }
88 return;
89 }
90
91 if ( binScheme == G4BinScheme::kLog ) {
92 // do not apply fcn
93 auto dlog = (std::log10(xumax) - std::log10(xumin))/ nbins;
94 auto dx = std::pow(10, dlog);
95 auto binValue = xumin;
96 while ( G4int(edges.size()) <= nbins ) { // Loop checking, 23.06.2015, I. Hrivnacova
97 edges.push_back(binValue);
98 binValue *= dx;
99 }
100 return;
101 }
102 }
103
104 //_____________________________________________________________________________
105 void ComputeEdges(const std::vector<G4double>& edges,
106 G4double unit, G4Fcn fcn,
107 std::vector<G4double>& newBins)
108 {
109 // Apply function & unit to defined edges
110
111 if (unit == 0.) {
112 // Should never happen
113 Warn("Illegal unit value (0), 1. will be used instead",
114 kNamespaceName, "ComputeEdges");
115 unit = 1.;
116 }
117
118 for (auto element : edges) {
119 newBins.push_back(fcn(element/unit));
120 }
121 }
122
123 }
124