1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: TiaraDPSSampledEnergy.cc,v 1.9 2006/06/29 15:44:48 gunter Exp $ |
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27 | // GEANT4 tag $Name: $ |
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28 | // |
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29 | |
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30 | #include "TiaraDPSSampledEnergy.hh" |
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31 | |
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32 | #ifdef G4ANALYSIS_USE |
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33 | |
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34 | #include "Randomize.hh" |
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35 | #include "TiaraFileAcess.hh" |
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36 | |
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37 | |
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38 | #include "AIDA/AIDA.h" |
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39 | |
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40 | |
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41 | TiaraDPSSampledEnergy::TiaraDPSSampledEnergy(const G4String &eng, |
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42 | G4double minEnergyCut, |
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43 | const G4String &sourceTree, |
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44 | const G4String &nameExt) |
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45 | : |
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46 | // fTree( (checkFileIsReadable(sourceTree, "TiaraDPSSampledEnergy::TiaraDPSSampledEnergy"), |
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47 | // AIDA_createAnalysisFactory() |
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48 | // ->createTreeFactory() |
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49 | // ->create(sourceTree, "xml",true,false)) ), |
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50 | //fSampleDPS(dynamic_cast<AIDA::IDataPointSet *>(fTree->find(G4String("dps" + eng + nameExt)))), |
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51 | fMinEnergyCut(minEnergyCut), |
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52 | fMaxProb(0) |
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53 | // fMinE(fSampleDPS->point(0)->coordinate(0)->value()), |
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54 | //fMaxE(fSampleDPS->point(fSampleDPS->size()-1)->coordinate(0)->value()) |
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55 | { |
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56 | ///////////////////////////////////////// |
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57 | |
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58 | AIDA::IAnalysisFactory* aFact = AIDA_createAnalysisFactory(); |
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59 | |
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60 | AIDA::ITreeFactory *treeFact = aFact->createTreeFactory(); |
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61 | |
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62 | fTree = treeFact -> create(sourceTree, "xml",true,false); |
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63 | |
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64 | AIDA::IManagedObject* object = fTree->find("dps" + eng + nameExt); |
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65 | if(object) { |
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66 | AIDA::IDataPointSet* sample = object->cast("AIDA::IDataPointSet"); |
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67 | fSampleDPS = sample; |
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68 | } |
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69 | fMinE = fSampleDPS->point(0)->coordinate(0)->value(); |
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70 | fMaxE = fSampleDPS->point(fSampleDPS->size()-1)->coordinate(0)->value(); |
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71 | |
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72 | ///////////////////////////////////////// |
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73 | |
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74 | for (G4int i=0; i < fSampleDPS->size(); i++) { |
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75 | AIDA::IDataPoint *p = fSampleDPS->point(i); |
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76 | G4double prob(p->coordinate(1)->value()); |
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77 | fEnergy_Flux[p->coordinate(0)->value() * 10] = prob; |
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78 | if (prob > fMaxProb) { |
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79 | fMaxProb = prob; |
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80 | } |
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81 | } |
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82 | if (!(fMaxProb > 0)) { |
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83 | G4Exception("TiaraDPSSampledEnergy::TiaraDPSSampledEnergy: fMaxProb <= 0!"); |
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84 | } |
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85 | } |
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86 | |
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87 | TiaraDPSSampledEnergy::TiaraDPSSampledEnergy(const TiaraDPSSampledEnergy& rhs) |
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88 | : TiaraVSourceEnergyGenerator() |
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89 | { |
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90 | *this = rhs; |
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91 | } |
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92 | |
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93 | TiaraDPSSampledEnergy& TiaraDPSSampledEnergy:: |
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94 | operator=(const TiaraDPSSampledEnergy& rhs) { |
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95 | if (this!=&rhs) { |
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96 | TiaraDPSSampledEnergy &nonConstRhs = static_cast<TiaraDPSSampledEnergy &>(rhs); |
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97 | fTree = nonConstRhs.fTree; |
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98 | fSampleDPS = nonConstRhs.fSampleDPS; |
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99 | fEnergy_Flux = nonConstRhs.fEnergy_Flux; |
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100 | fMinEnergyCut = nonConstRhs.fMinEnergyCut; |
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101 | fMaxProb = nonConstRhs.fMaxProb; |
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102 | fMinE = nonConstRhs.fMinE; |
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103 | fMaxE = nonConstRhs.fMaxE; |
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104 | } |
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105 | return *this; |
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106 | } |
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107 | |
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108 | TiaraDPSSampledEnergy::~TiaraDPSSampledEnergy(){ |
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109 | } |
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110 | |
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111 | |
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112 | TiaraVSourceEnergyGenerator *TiaraDPSSampledEnergy::Clone() const { |
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113 | return new TiaraDPSSampledEnergy(*this); |
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114 | } |
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115 | |
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116 | G4double TiaraDPSSampledEnergy::GetEnergy() { |
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117 | |
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118 | G4double e(0.0); |
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119 | while (!(e>fMinEnergyCut)) { |
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120 | // a factor 10 is introduced to have an integer map |
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121 | // for .5 values |
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122 | G4double r(10 * (fMinE + G4UniformRand() * (fMaxE - fMinE) )); |
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123 | G4int cLow(0); |
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124 | G4int cHigh(0); |
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125 | getBounds(cLow,cHigh,r); |
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126 | G4double dx10(r-cLow); // a facto 10 enters |
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127 | |
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128 | G4double fLow(fEnergy_Flux[cLow]); |
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129 | G4double fHigh(fEnergy_Flux[cHigh]); |
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130 | |
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131 | // if ( (!(fLow>0.0)) || (!(fHigh>0.0)) ) { |
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132 | // G4cout << "TiaraDPSSampledEnergy::GetEnergy: WARNING: (!(fLow>0.0) || (!(fHigh>0.0) " << G4endl; |
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133 | // G4cout << "r: " << r << G4endl; |
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134 | // G4cout << "d: " << d << G4endl; |
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135 | // G4cout << "cLow: " << cLow << G4endl; |
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136 | // G4cout << "cHigh: " << cHigh << G4endl; |
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137 | // } |
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138 | // G4cout << "fLow: " << fLow << ", fHigh: " << fHigh << G4endl; |
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139 | |
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140 | G4double dy(fHigh - fLow); |
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141 | G4double m01(dy/(cHigh-cLow)); // a factor 1/10 enters |
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142 | G4double p((fLow + m01*dx10)/fMaxProb); |
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143 | // G4cout << "p: " << p << G4endl; |
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144 | G4double discard(G4UniformRand()); |
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145 | // G4cout << "discard: " << discard << G4endl; |
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146 | if (discard < p) { |
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147 | e = r/10.; |
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148 | break; |
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149 | } |
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150 | } |
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151 | return e; |
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152 | } |
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153 | |
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154 | void TiaraDPSSampledEnergy::getBounds(G4int &cL, G4int &cH, G4double v) { |
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155 | std::map<int, double>::iterator itH = fEnergy_Flux.upper_bound(v); |
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156 | cH = itH->first; |
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157 | std::map<int, double>::iterator itL = --itH; |
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158 | cL = itL->first; |
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159 | } |
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160 | |
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161 | #endif |
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162 | |
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163 | |
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164 | |
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165 | |
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166 | |
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167 | |
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168 | |
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