1 | /* ======================================================================== *\
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2 | !
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3 | ! *
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4 | ! * This file is part of MARS, the MAGIC Analysis and Reconstruction
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5 | ! * Software. It is distributed to you in the hope that it can be a useful
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6 | ! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
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7 | ! * It is distributed WITHOUT ANY WARRANTY.
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8 | ! *
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9 | ! * Permission to use, copy, modify and distribute this software and its
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10 | ! * documentation for any purpose is hereby granted without fee,
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11 | ! * provided that the above copyright notice appear in all copies and
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12 | ! * that both that copyright notice and this permission notice appear
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13 | ! * in supporting documentation. It is provided "as is" without express
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14 | ! * or implied warranty.
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15 | ! *
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16 | !
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17 | !
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18 | ! Author(s): Markus Gaug 02/2004 <mailto:markus@ifae.es>
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19 | !
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20 | ! Copyright: MAGIC Software Development, 2000-2004
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21 | !
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22 | !
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23 | \* ======================================================================== */
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24 | /////////////////////////////////////////////////////////////////////////////
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25 | // //
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26 | // MHCalibrationRelTimeCam //
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27 | // //
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28 | // Fills the extracted relative arrival times of MArrivalTimeCam into
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29 | // the MHGausEvents-classes MHCalibrationRelTimePix for every:
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30 | //
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31 | // - pixel, stored in the TObjArray's MHCalibrationCam::fHiGainArray
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32 | //
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33 | // - average pixel per area index (e.g. inner and outer for the MAGIC camera),
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34 | // stored in the TObjArray's MHCalibrationCam::fAverageHiGainAreas
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35 | //
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36 | // - average pixel per camera sector (e.g. sectors 1-6 for the MAGIC camera),
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37 | // stored in the TObjArray's MHCalibrationCam::fAverageHiGainSectors
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38 | //
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39 | // Every time is filled into a histogram and an array, in order to perform
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40 | // a Fourier analysis (see MHGausEvents). The signals are moreover averaged on an
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41 | // event-by-event basis and written into the corresponding average pixels.
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42 | //
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43 | // The histograms are fitted to a Gaussian, mean and sigma with its errors
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44 | // and the fit probability are extracted. If none of these values are NaN's and
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45 | // if the probability is bigger than fProbLimit (default: 0.5%), the fit is valid.
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46 | // Otherwise, the fit is repeated within ranges of the previous mean +- 5 sigma.
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47 | // In case this does not make the fit valid, the histogram means and RMS's are
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48 | // taken directly and the following flags are set:
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49 | // - MBadPixelsPix::SetUncalibrated( MBadPixelsPix::kRelTimeNotFitted ) and
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50 | // - MBadPixelsPix::SetUnsuitable( MBadPixelsPix::kUnreliableRun )
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51 | //
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52 | // Outliers of more than MHCalibrationChargePix::fPickupLimit (default: 5) sigmas
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53 | // from the mean are counted as PickUp events (stored in MHCalibrationRelTimePix::fPickup)
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54 | //
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55 | // The class also fills arrays with the signal vs. event number, creates a fourier
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56 | // spectrum and investigates if the projected fourier components follow an exponential
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57 | // distribution. In case that the probability of the exponential fit is less than
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58 | // fProbLimit (default: 0.5%), the following flags are set:
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59 | // - MBadPixelsPix::SetUncalibrated( MBadPixelsPix::kRelTimeOscillating ) and
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60 | // - MBadPixelsPix::SetUnsuitable( MBadPixelsPix::kUnreliableRun )
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61 | //
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62 | // This same procedure is performed for the average pixels.
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63 | //
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64 | // The following results are written into MCalibrationRelTimeCam:
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65 | //
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66 | // - MCalibrationPix::SetMean()
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67 | // - MCalibrationPix::SetMeanErr()
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68 | // - MCalibrationPix::SetSigma()
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69 | // - MCalibrationPix::SetSigmaErr()
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70 | // - MCalibrationPix::SetProb()
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71 | // - MCalibrationPix::SetNumPickup()
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72 | //
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73 | // For all averaged areas, the fitted sigma is multiplied with the square root of
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74 | // the number involved pixels in order to be able to compare it to the average of
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75 | // sigmas in the camera.
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76 | //
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77 | /////////////////////////////////////////////////////////////////////////////
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78 | #include "MHCalibrationRelTimeCam.h"
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79 | #include "MHCalibrationRelTimePix.h"
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80 |
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81 | #include "MLog.h"
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82 | #include "MLogManip.h"
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83 |
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84 | #include "MParList.h"
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85 |
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86 | #include "MCalibrationRelTimeCam.h"
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87 | #include "MCalibrationPix.h"
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88 |
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89 | #include "MArrivalTimeCam.h"
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90 | #include "MArrivalTimePix.h"
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91 |
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92 | #include "MGeomCam.h"
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93 | #include "MGeomPix.h"
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94 |
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95 | #include "MBadPixelsCam.h"
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96 | #include "MBadPixelsPix.h"
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97 |
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98 | ClassImp(MHCalibrationRelTimeCam);
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99 |
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100 | using namespace std;
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101 | // --------------------------------------------------------------------------
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102 | //
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103 | // Default Constructor.
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104 | //
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105 | MHCalibrationRelTimeCam::MHCalibrationRelTimeCam(const char *name, const char *title)
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106 | {
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107 |
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108 | fName = name ? name : "MHCalibrationRelTimeCam";
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109 | fTitle = title ? title : "Histogram class for the relative time calibration of the camera";
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110 |
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111 | }
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112 |
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113 | // --------------------------------------------------------------------------
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114 | //
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115 | // Gets or creates the pointers to:
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116 | // - MCalibrationRelTimeCam
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117 | //
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118 | // Searches pointer to:
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119 | // - MArrivalTimeCam
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120 | //
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121 | // Initializes, if empty to MArrivalTimeCam::GetSize() for:
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122 | // - MHCalibrationCam::fHiGainArray, MHCalibrationCam::fLoGainArray
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123 | //
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124 | // Initializes, if empty to MGeomCam::GetNumAreas() for:
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125 | // - MHCalibrationCam::fAverageHiGainAreas, MHCalibrationCam::fAverageLoGainAreas
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126 | //
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127 | // Initializes, if empty to MGeomCam::GetNumSectors() for:
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128 | // - MHCalibrationCam::fAverageHiGainSectors, MHCalibrationCam::fAverageLoGainSectors
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129 | //
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130 | // Calls InitializeHists() for every entry in:
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131 | // - MHCalibrationCam::fHiGainArray
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132 | // - MHCalibrationCam::fAverageHiGainAreas
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133 | // - MHCalibrationCam::fAverageHiGainSectors
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134 | //
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135 | // Sets Titles and Names for the Histograms
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136 | // - MHCalibrationCam::fAverageHiGainAreas
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137 | // - MHCalibrationCam::fAverageHiGainSectors
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138 | //
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139 | // Sets number of bins to MHCalibrationCam::fAverageNbins for:
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140 | // - MHCalibrationCam::fAverageHiGainAreas, MHCalibrationCam::fAverageLoGainAreas
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141 | // - MHCalibrationCam::fAverageHiGainSectors, MHCalibrationCam::fAverageLoGainSectors
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142 | //
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143 | Bool_t MHCalibrationRelTimeCam::ReInitHists(MParList *pList)
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144 | {
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145 |
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146 | fCam = (MCalibrationCam*)pList->FindCreateObj("MCalibrationRelTimeCam");
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147 | if (!fCam)
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148 | return kFALSE;
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149 |
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150 | MArrivalTimeCam *signal = (MArrivalTimeCam*)pList->FindObject("MArrivalTimeCam");
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151 | if (!signal)
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152 | {
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153 | *fLog << err << "MArrivalTimeCam not found... abort." << endl;
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154 | return kFALSE;
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155 | }
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156 |
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157 | const Int_t npixels = fGeom->GetNumPixels();
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158 | const Int_t nsectors = fGeom->GetNumSectors();
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159 | const Int_t nareas = fGeom->GetNumAreas();
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160 |
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161 | if (fHiGainArray->GetEntries()==0)
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162 | {
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163 | fHiGainArray->Expand(npixels);
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164 | for (Int_t i=0; i<npixels; i++)
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165 | {
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166 | (*fHiGainArray)[i] = new MHCalibrationRelTimePix;
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167 | InitHists((*this)[i],(*fBadPixels)[i],i);
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168 | }
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169 | }
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170 |
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171 | if (fLoGainArray->GetEntries()==0)
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172 | {
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173 | fLoGainArray->Expand(npixels);
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174 | for (Int_t i=0; i<npixels; i++)
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175 | {
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176 | (*fLoGainArray)[i] = new MHCalibrationRelTimePix;
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177 | InitHists((*this)(i),(*fBadPixels)[i],i);
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178 | }
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179 | }
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180 |
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181 | if (fAverageHiGainAreas->GetEntries()==0)
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182 | {
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183 | fAverageHiGainAreas->Expand(nareas);
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184 |
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185 | for (Int_t j=0; j<nareas; j++)
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186 | {
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187 | (*fAverageHiGainAreas)[j] =
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188 | new MHCalibrationRelTimePix("AverageHiGainArea",
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189 | "Average Relative Arrival Times area idx ");
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190 |
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191 | InitHists(GetAverageHiGainArea(j),fCam->GetAverageBadArea(j),j);
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192 |
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193 | GetAverageHiGainArea(j).GetHGausHist()->SetTitle("Relative Arrival Times average Area Idx ");
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194 | GetAverageHiGainArea(j).SetNbins(fAverageNbins);
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195 | }
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196 | }
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197 |
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198 | if (fAverageLoGainAreas->GetEntries()==0)
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199 | {
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200 | fAverageLoGainAreas->Expand(nareas);
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201 |
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202 | for (Int_t j=0; j<nareas; j++)
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203 | {
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204 | (*fAverageLoGainAreas)[j] =
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205 | new MHCalibrationRelTimePix("AverageLoGainArea",
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206 | "Relative Arrival Times average Area idx ");
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207 |
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208 | InitHists(GetAverageLoGainArea(j),fCam->GetAverageBadArea(j),j);
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209 |
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210 | GetAverageLoGainArea(j).GetHGausHist()->SetTitle("Relative Arrival Times average Area Idx ");
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211 | GetAverageLoGainArea(j).SetNbins(fAverageNbins);
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212 | }
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213 | }
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214 |
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215 | if (fAverageHiGainSectors->GetEntries()==0)
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216 | {
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217 | fAverageHiGainSectors->Expand(nsectors);
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218 |
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219 | for (Int_t j=0; j<nsectors; j++)
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220 | {
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221 | (*fAverageHiGainSectors)[j] =
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222 | new MHCalibrationRelTimePix("AverageHiGainSector",
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223 | "Relative Arrival Times average sector ");
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224 |
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225 | GetAverageHiGainSector(j).GetHGausHist()->SetTitle("Relative Arrival Times average Sector ");
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226 | GetAverageHiGainSector(j).SetNbins(fAverageNbins);
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227 | }
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228 | }
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229 |
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230 | if (fAverageLoGainSectors->GetEntries()==0)
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231 | {
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232 | fAverageLoGainSectors->Expand(nsectors);
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233 |
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234 | for (Int_t j=0; j<nsectors; j++)
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235 | {
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236 | (*fAverageLoGainSectors)[j] =
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237 | new MHCalibrationRelTimePix("AverageLoGainSector",
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238 | "Relative Arrival Times average sector ");
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239 |
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240 | InitHists(GetAverageLoGainSector(j),fCam->GetAverageBadSector(j),j);
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241 |
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242 | GetAverageLoGainSector(j).GetHGausHist()->SetTitle("Relative Arrival Times average Sector ");
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243 | GetAverageLoGainSector(j).SetNbins(fAverageNbins);
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244 | }
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245 | }
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246 |
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247 | return kTRUE;
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248 | }
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249 |
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250 |
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251 | //--------------------------------------------------------------------------------
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252 | //
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253 | // Retrieves pointer to MArrivalTimeCam:
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254 | //
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255 | // Retrieves from MGeomCam:
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256 | // - number of pixels
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257 | // - number of pixel areas
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258 | // - number of sectors
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259 | //
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260 | // Fill RelTimes histograms (MHGausEvents::FillHistAndArray()) with:
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261 | // - MArrivalTimePix::GetArrivalTime(pixid) - MArrivalTimePix::GetArrivalTime(1);
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262 | // (i.e. the time difference between pixel i and pixel 1 (hardware number: 2)
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263 | //
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264 | Bool_t MHCalibrationRelTimeCam::FillHists(const MParContainer *par, const Stat_t w)
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265 | {
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266 |
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267 | MArrivalTimeCam *arrtime = (MArrivalTimeCam*)par;
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268 | if (!arrtime)
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269 | {
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270 | gLog << err << "No argument in MArrivalTime::Fill... abort." << endl;
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271 | return kFALSE;
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272 | }
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273 |
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274 | const Int_t npixels = fGeom->GetNumPixels();
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275 | const Int_t nareas = fGeom->GetNumAreas();
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276 | const Int_t nsectors = fGeom->GetNumSectors();
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277 |
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278 | Float_t sumareahi [nareas], sumarealo [nareas];
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279 | Float_t sumsectorhi[nsectors], sumsectorlo[nsectors];
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280 | Int_t numareahi [nareas], numarealo [nareas];
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281 | Int_t numsectorhi[nsectors], numsectorlo[nsectors];
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282 |
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283 | for (UInt_t j=0; j<nareas; j++)
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284 | {
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285 | sumareahi[j] = sumarealo[j] = 0.;
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286 | numareahi[j] = numarealo[j] = 0;
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287 | }
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288 |
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289 | for (UInt_t j=0; j<nsectors; j++)
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290 | {
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291 | sumsectorhi[j] = sumsectorlo[j] = 0.;
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292 | numsectorhi[j] = numsectorlo[j] = 0;
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293 | }
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294 |
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295 | const MArrivalTimePix &refpix = (*arrtime)[1];
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296 | const Float_t reftime = refpix.IsLoGainUsed()
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297 | ? refpix.GetArrivalTimeLoGain() : refpix.GetArrivalTimeHiGain();
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298 |
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299 | for (Int_t i=0; i<npixels; i++)
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300 | {
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301 |
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302 | MHGausEvents &histhi = (*this)[i];
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303 | MHGausEvents &histlo = (*this)(i);
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304 |
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305 | if (histhi.IsExcluded())
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306 | continue;
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307 |
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308 | const MArrivalTimePix &pix = (*arrtime)[i];
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309 | const Float_t time = pix.IsLoGainUsed()
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310 | ? pix.GetArrivalTimeLoGain() : pix.GetArrivalTimeHiGain();
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311 | const Float_t reltime = time - reftime;
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312 |
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313 | const Int_t aidx = (*fGeom)[i].GetAidx();
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314 | const Int_t sector = (*fGeom)[i].GetSector();
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315 |
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316 | if (pix.IsLoGainUsed())
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317 | {
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318 | histlo.FillHistAndArray(reltime);
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319 | sumarealo [aidx] += reltime;
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320 | numarealo [aidx] ++;
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321 | sumsectorlo[sector] += reltime;
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322 | numsectorlo[sector] ++;
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323 | }
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324 | else
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325 | {
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326 | histhi.FillHistAndArray(reltime) ;
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327 | sumareahi [aidx] += reltime;
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328 | numareahi [aidx] ++;
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329 | sumsectorhi[sector] += reltime;
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330 | numsectorhi[sector] ++;
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331 | }
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332 | }
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333 |
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334 | for (UInt_t j=0; j<nareas; j++)
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335 | {
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336 | MHGausEvents &histhi = GetAverageHiGainArea(j);
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337 | histhi.FillHistAndArray(numareahi[j] == 0 ? 0. : sumareahi[j]/numareahi[j]);
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338 |
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339 | MHGausEvents &histlo = GetAverageLoGainArea(j);
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340 | histlo.FillHistAndArray(numarealo[j] == 0 ? 0. : sumarealo[j]/numarealo[j]);
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341 | }
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342 |
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343 | for (UInt_t j=0; j<nsectors; j++)
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344 | {
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345 | MHGausEvents &histhi = GetAverageHiGainSector(j);
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346 | histhi.FillHistAndArray(numsectorhi[j] == 0 ? 0. : sumsectorhi[j]/numsectorhi[j]);
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347 |
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348 | MHGausEvents &histlo = GetAverageLoGainSector(j);
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349 | histlo.FillHistAndArray(numsectorlo[j] == 0 ? 0. : sumsectorlo[j]/numsectorlo[j]);
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350 | }
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351 |
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352 | return kTRUE;
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353 | }
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354 |
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355 | // --------------------------------------------------------------------------
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356 | //
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357 | // Calls:
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358 | // - MHCalibrationCam::FitHiGainArrays() with flags:
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359 | // MBadPixelsPix::kRelTimeNotFitted and MBadPixelsPix::kRelTimeOscillating
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360 | // - MHCalibrationCam::FitLoGainArrays() with flags:
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361 | // MBadPixelsPix::kRelTimeNotFitted and MBadPixelsPix::kRelTimeOscillating
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362 | //
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363 | Bool_t MHCalibrationRelTimeCam::FinalizeHists()
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364 | {
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365 |
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366 | FitHiGainArrays((MCalibrationCam&)(*fCam),*fBadPixels,
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367 | MBadPixelsPix::kRelTimeNotFitted,
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368 | MBadPixelsPix::kRelTimeOscillating);
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369 |
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370 | FitLoGainArrays((MCalibrationCam&)(*fCam),*fBadPixels,
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371 | MBadPixelsPix::kRelTimeNotFitted,
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372 | MBadPixelsPix::kRelTimeOscillating);
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373 |
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374 | return kTRUE;
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375 | }
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376 |
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377 | // --------------------------------------------------------------------------
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378 | //
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379 | // Sets all pixels to MBadPixelsPix::kUnreliableRun, if following flags are set:
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380 | // - MBadPixelsPix::kRelTimeNotFitted
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381 | // - MBadPixelsPix::kRelTimeOscillating
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382 | //
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383 | void MHCalibrationRelTimeCam::FinalizeBadPixels()
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384 | {
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385 |
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386 | for (Int_t i=0; i<fBadPixels->GetSize(); i++)
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387 | {
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388 |
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389 | MBadPixelsPix &bad = (*fBadPixels)[i];
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390 |
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391 | if (bad.IsUncalibrated( MBadPixelsPix::kRelTimeNotFitted ))
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392 | bad.SetUnsuitable( MBadPixelsPix::kUnreliableRun );
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393 |
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394 | if (bad.IsUncalibrated( MBadPixelsPix::kRelTimeOscillating))
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395 | bad.SetUnsuitable( MBadPixelsPix::kUnreliableRun );
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396 |
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397 | }
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398 | }
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399 |
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400 | // --------------------------------------------------------------------------
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401 | //
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402 | // The types are as follows:
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403 | //
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404 | // Fitted values:
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405 | // ==============
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406 | //
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407 | // 0: Fitted Mean Relative Arrival Time
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408 | // 1: Error of fitted Mean Relative Arrival Time
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409 | // 2: Sigma of fitted Relative Arrival Time
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410 | // 3: Error of Sigma of fitted Relative Arrival Time
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411 | //
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412 | //
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413 | // Useful variables derived from the fit results:
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414 | // =============================================
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415 | //
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416 | // 4: Returned probability of Gauss fit to RelTime distribution
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417 | //
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418 | // Localized defects:
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419 | // ==================
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420 | //
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421 | // 5: Gaus fit not OK
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422 | // 6: Fourier spectrum not OK
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423 | //
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424 | Bool_t MHCalibrationRelTimeCam::GetPixelContent(Double_t &val, Int_t idx, const MGeomCam &cam, Int_t type) const
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425 | {
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426 |
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427 | if (fHiGainArray->GetSize() <= idx)
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428 | return kFALSE;
|
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429 |
|
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430 | MHCalibrationRelTimePix &hist = (MHCalibrationRelTimePix&)(*this)[idx];
|
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431 |
|
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432 | switch (type)
|
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433 | {
|
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434 | case 0:
|
---|
435 | val = hist.GetMean();
|
---|
436 | break;
|
---|
437 | case 1:
|
---|
438 | val = hist.GetMeanErr();
|
---|
439 | break;
|
---|
440 | case 2:
|
---|
441 | val = hist.GetSigma();
|
---|
442 | break;
|
---|
443 | case 3:
|
---|
444 | val = hist.GetSigmaErr();
|
---|
445 | break;
|
---|
446 | case 4:
|
---|
447 | val = hist.GetProb();
|
---|
448 | break;
|
---|
449 | case 5:
|
---|
450 | if (!hist.IsGausFitOK())
|
---|
451 | val = 1.;
|
---|
452 | break;
|
---|
453 | case 6:
|
---|
454 | if (!hist.IsFourierSpectrumOK())
|
---|
455 | val = 1.;
|
---|
456 | break;
|
---|
457 | default:
|
---|
458 | return kFALSE;
|
---|
459 | }
|
---|
460 | return kTRUE;
|
---|
461 | }
|
---|
462 |
|
---|
463 | void MHCalibrationRelTimeCam::DrawPixelContent(Int_t idx) const
|
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464 | {
|
---|
465 | const MHCalibrationRelTimePix &hist = (MHCalibrationRelTimePix&)(*this)[idx];
|
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466 | hist.DrawClone();
|
---|
467 | }
|
---|