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25 //
26 //
27 //
28 // Author: Elena Guardincerri (Elena.Guardincerri@ge.infn.it)
29 //
30 // History:
31 // -----------
32 // 28 Nov 2001 Elena Guardincerri Created
33 //
34 // -------------------------------------------------------------------
35
36 #include "XrayFluoDataSet.hh"
37 #include <fstream>
38 #include "G4VDataSetAlgorithm.hh"
39
40 XrayFluoDataSet::XrayFluoDataSet(G4int /*Z*/,
41 G4DataVector* points,
42 G4DataVector* values,
43 const G4VDataSetAlgorithm* interpolation,
44 G4double unitE, G4double unitData)
45 :energies(points), data(values), algorithm(interpolation)
46 {
47 numberOfBins = energies->size();
48 unit1 = unitE;
49 unit2 = unitData;
50 }
51
52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
53
54 XrayFluoDataSet:: XrayFluoDataSet(G4int /*Z*/,
55 const G4String& dataFile,
56 const G4VDataSetAlgorithm* interpolation,
57 G4double unitE, G4double unitData)
58 : algorithm(interpolation)
59 {
60 energies = new G4DataVector;
61 data = new G4DataVector;
62 unit1 = unitE;
63 unit2 = unitData;
64 LoadData(dataFile);
65 numberOfBins = energies->size();
66 }
67
68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
69
70 // Destructor
71 XrayFluoDataSet::~XrayFluoDataSet()
72 {
73 delete energies;
74 delete data;
75 }
76
77 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
78
79 G4double XrayFluoDataSet::FindValue(G4double e, G4int) const
80 {
81 G4double value;
82 G4double e0 = (*energies)[0];
83 // Protections
84 size_t bin = FindBinLocation(e);
85 if (bin == numberOfBins)
86 {
87
88 value = (*data)[bin];
89 }
90 else if (e <= e0)
91 {
92
93 value = (*data)[0];
94 }
95 else
96 {
97 value = algorithm->Calculate(e,bin,*energies,*data);
98 }
99
100 return value;
101 }
102
103 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
104
105 G4int XrayFluoDataSet::FindBinLocation(G4double energy) const
106 {
107 // Protection against call outside allowed range
108 G4double e0 = (*energies)[0];
109 if (energy < e0)
110 {
111
112 energy = e0;
113 }
114
115 size_t lowerBound = 0;
116 size_t upperBound = numberOfBins - 1;
117
118 // Binary search
119 while (lowerBound <= upperBound)
120 {
121 size_t midBin = (lowerBound + upperBound)/2;
122 if ( energy < (*energies)[midBin] ) upperBound = midBin-1;
123 else lowerBound = midBin+1;
124 }
125
126 return upperBound;
127 }
128
129 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
130
131 G4bool XrayFluoDataSet::LoadData(const G4String& fileName)
132 {
133 // Build the complete string identifying the file with the data set
134 G4String dirFile = "";
135
136 char* path;
137
138 path = std::getenv("XRAYDATA");
139 if (!path)
140 path = std::getenv("PWD");
141
142 //G4cout << path << G4endl;
143 //G4cout << fileName << G4endl;
144
145
146 G4String pathString(path);
147 pathString += "\0";
148 dirFile = pathString + "/" + fileName + ".dat";
149
150 std::ifstream file(dirFile);
151 std::filebuf* lsdp = file.rdbuf();
152
153 if (! (lsdp->is_open()) )
154 {
155 G4ExceptionDescription execp;
156 execp << "XrayFluoDataSet - data file: " + dirFile + " not found"<<G4endl;
157 G4Exception("XrayFluoDataSet::LoadData()","example-xray_fluorescence01",
158 FatalException, execp);
159 }
160 G4double a = 0;
161 G4int k = 1;
162
163 do
164 {
165 file >> a;
166 G4int nColumns = 2;
167 // The file is organized into two columns:
168 // 1st column is the energy
169 // 2nd column is the corresponding value
170 // The file terminates with the pattern: -1 -1
171 // -2 -2
172 if (a == -1 || a == -2)
173 {
174
175 }
176 else
177 {
178 if (k%nColumns != 0)
179 {
180 G4double e = a * unit1;
181 energies->push_back(e);
182
183 k++;
184
185 }
186 else if (k%nColumns == 0)
187 {
188 G4double value = a * unit2;
189 data->push_back(value);
190
191 k = 1;
192 }
193 }
194
195 } while (a != -2); // end of file
196
197 file.close();
198 return true;
199
200 }
201
202 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
203
204 void XrayFluoDataSet::PrintData() const
205 {
206 size_t size = numberOfBins;
207 for (size_t i=0; i<size; i++)
208 {
209 G4double e = (*energies)[i] / unit1;
210 G4double sigma = (*data)[i] / unit2 ;
211 G4cout << "Point: "
212 << e
213 << " - Data value : "
214 << sigma
215 << G4endl;
216 }
217 }
218
219
220
221