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 | /////////////////////////////////////////////////////////////////////////////// |
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27 | // File: CCaloOrganization.cc |
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28 | // Description: Packing, unpacking and other related utilities for |
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29 | // calorimetric numbering schema |
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30 | /////////////////////////////////////////////////////////////////////////////// |
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31 | #include "CCaloOrganization.hh" |
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32 | |
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33 | //#define debug |
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34 | |
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35 | unsigned int CCaloOrganization::packindex(int det, int z, int eta, |
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36 | int phi) const { |
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37 | //So this is the actual encoding of the index: |
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38 | //top 4 bits encode Detector type |
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39 | // |
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40 | // Should work for all calorimeter with no depth information |
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41 | |
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42 | unsigned int idx=(det&15)<<28; //bits 28-31 (21-23 are free for now) |
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43 | idx+=(((z+1)/2)&1)<<20; //bits 20 |
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44 | idx+=(eta&1023)<<10; //bits 10-19 |
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45 | idx+=(phi&1023); //bits 0-9 |
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46 | #ifdef debug |
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47 | G4cout << " ECAL packing " << det << " " << z << " " << eta << " " << phi |
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48 | << " into " << idx << G4endl; |
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49 | #endif |
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50 | return idx; |
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51 | } |
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52 | |
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53 | unsigned int CCaloOrganization::packindex(int det, int depth, int z, int eta, |
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54 | int phi) const { |
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55 | //So this is the actual encoding of the index: |
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56 | //top 4 bits encode Detector type |
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57 | //next 4 bits encode depth information |
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58 | // Should work for all calorimeter with no depth information |
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59 | |
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60 | unsigned int idx=(det&15)<<28; //bits 28-31 (21-23 are free for now) |
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61 | idx+=(depth&15)<<24; //bits 24-27 |
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62 | idx+=(z&1)<<20; //bits 20 |
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63 | idx+=(eta&1023)<<10; //bits 10-19 |
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64 | idx+=(phi&1023); //bits 0-9 |
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65 | #ifdef debug |
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66 | G4cout << " HCAL packing " << det << " " << depth << " " << z << " " << eta |
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67 | << " " << phi << " into " << idx << G4endl; |
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68 | #endif |
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69 | return idx; |
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70 | } |
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71 | |
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72 | |
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73 | void CCaloOrganization::unpackindex(const unsigned int& idx, int& det, int& z, |
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74 | int& eta, int& phi) const { |
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75 | det = (idx>>28)&15; |
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76 | z = (idx>>20)&1; |
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77 | z = 2*z-1; |
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78 | eta = (idx>>10)&1023; |
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79 | phi = (idx&1023); |
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80 | } |
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81 | |
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82 | |
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83 | void CCaloOrganization::unpackindex(const unsigned int& idx, int& det, |
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84 | int& depth, int& z, int& eta, |
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85 | int& phi) const { |
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86 | det = (idx>>28)&15; |
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87 | depth=(idx>>24)&15; |
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88 | z = (idx>>20)&1; |
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89 | eta = (idx>>10)&1023; |
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90 | phi = (idx&1023); |
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91 | } |
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92 | |
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93 | |
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94 | int CCaloOrganization::getUnitWithMaxEnergy(std::map<int,float,std::less<int> >& themap){ |
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95 | |
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96 | //look for max |
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97 | int UnitWithMaxEnergy = 0; |
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98 | float maxEnergy = 0.; |
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99 | |
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100 | for(std::map<int,float,std::less<int> >::iterator iter = themap.begin(); |
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101 | iter != themap.end(); iter++){ |
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102 | |
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103 | if( maxEnergy < (*iter).second) { |
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104 | maxEnergy = (*iter).second; |
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105 | UnitWithMaxEnergy = (*iter).first; |
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106 | } |
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107 | } |
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108 | #ifdef debug |
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109 | G4cout << " *** max energy of " << maxEnergy << " MeV was found in Unit id " |
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110 | << UnitWithMaxEnergy; |
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111 | int det,z,eta,phi; |
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112 | unpackindex(UnitWithMaxEnergy, det, z, eta, phi); |
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113 | G4cout << " corresponding to z= " << z << " eta= " << eta << " phi = " << phi |
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114 | << G4endl; |
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115 | #endif |
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116 | return UnitWithMaxEnergy; |
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117 | |
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118 | } |
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119 | |
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120 | |
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121 | float CCaloOrganization::energyInMatrix(int nCellInEta, int nCellInPhi, |
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122 | int crystalWithMaxEnergy, |
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123 | std::map<int,float,std::less<int> >& themap){ |
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124 | |
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125 | int det,z,eta,phi; |
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126 | this->unpackindex(crystalWithMaxEnergy, det, z, eta, phi); |
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127 | int ncristals=0; |
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128 | |
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129 | int goBackInEta = nCellInEta/2; |
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130 | int goBackInPhi = nCellInPhi/2; |
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131 | int startEta = eta-goBackInEta; |
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132 | int startPhi = phi-goBackInPhi; |
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133 | |
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134 | float totalEnergy = 0.; |
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135 | |
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136 | for(int ieta=startEta; ieta<startEta+nCellInEta; ieta++){ |
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137 | for(int iphi=startPhi; iphi<startPhi+nCellInPhi; iphi++){ |
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138 | |
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139 | int index = this->packindex(det,z,ieta,iphi); |
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140 | totalEnergy += themap[index]; |
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141 | ncristals+=1; |
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142 | #ifdef debug |
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143 | G4cout << "ieta - iphi - E = " << ieta << " " << iphi << " " |
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144 | << themap[index] << G4endl; |
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145 | #endif |
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146 | } |
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147 | } |
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148 | |
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149 | #ifdef debug |
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150 | G4cout << "Energy in " << nCellInEta << " cells in eta times " |
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151 | << nCellInPhi << " cells in phi matrix = " << totalEnergy |
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152 | << " for " << ncristals << " crystals" << G4endl; |
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153 | #endif |
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154 | return totalEnergy; |
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155 | |
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156 | } |
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