1 | /* ======================================================================== *\
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2 | !
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3 | !
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4 | ! Author(s): Ester Aliu, 3/2004
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5 | !
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6 | !
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7 | \* ======================================================================== */
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8 |
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9 | /////////////////////////////////////////////////////////////////////////////
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10 | //
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11 | // MIslandClean
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12 | //
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13 | // The Island Cleaning task selects the islands you use for the Hillas
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14 | // parameters calculation, after the normal image cleaning.
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15 | //
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16 | // There are two methods to make the selection:
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17 | //
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18 | // - No time method, as used is Whipple. It calculates an island parameter
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19 | // called "signal to noise" and adds a new threshold that eliminates some
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20 | // of the islands. The way the island is eliminated is seeting the pixels
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21 | // of the islands as UNUSED
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22 | //
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23 | // - Time method, taking profit of the time information in MAGIC.
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24 | // Calculates the maximum time difference (in time slices) for each island
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25 | // and corrects for the island size. With an other new threshold "noise"
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26 | // islands are supposed to be eliminated.
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27 | //
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28 | //
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29 | // Example:
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30 | //
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31 | // MIslands isl;
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32 | // isl.SetName("MIslands1");
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33 |
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34 | // MImgCleanStd clean;
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35 | // MIslandClean islclean(0.2);
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36 | // islclean.SetInputName("MIslands1");
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37 | // islclean.SetMethod(0); // for timing method
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38 | //
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39 | // tlist.AddToList(&clean);
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40 | // tlist.AddToList(&islclean);
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41 | //
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42 | //
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43 | // Input Containers:
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44 | // MGeomCam
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45 | // MCerPhotEvt
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46 | // MPedestalCam
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47 | // MArrivalTime
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48 | // MIslands
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49 | //
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50 | // Output Containers:
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51 | // MCerPhotEvt
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52 | //
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53 | /////////////////////////////////////////////////////////////////////////////
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54 | #include "MIslandClean.h"
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55 |
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56 | #include <stdlib.h> // atof
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57 | #include <fstream> // ofstream, SavePrimitive
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58 |
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59 | #include "MLog.h"
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60 | #include "MLogManip.h"
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61 |
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62 | #include "MIslands.h"
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63 |
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64 | #include "MParList.h"
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65 |
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66 | #include "MGeomPix.h"
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67 | #include "MGeomCam.h"
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68 |
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69 | #include "MCerPhotPix.h"
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70 | #include "MCerPhotEvt.h"
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71 |
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72 | #include "MPedestalCam.h"
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73 | #include "MPedestalPix.h"
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74 |
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75 | #include "MArrivalTimeCam.h"
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76 | #include "MArrivalTimePix.h"
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77 |
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78 | ClassImp(MIslandClean);
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79 |
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80 |
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81 | using namespace std;
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82 |
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83 | // --------------------------------------------------------------------------
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84 | //
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85 | // Default constructor.
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86 | //
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87 | MIslandClean::MIslandClean(const Float_t newThres, const char *name, const char *title)
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88 | : fIsl(NULL), fIslandCleaningMethod(kNoTiming), fIslCleanThres(newThres)
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89 | {
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90 | fName = name ? name : "MIslandClean";
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91 | fTitle = title ? title : "Clean islands";
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92 | }
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93 |
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94 |
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95 | Int_t MIslandClean::PreProcess (MParList *pList)
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96 | {
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97 | fCam = (MGeomCam*)pList->FindObject(AddSerialNumber("MGeomCam"));
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98 | if (!fCam)
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99 | {
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100 | *fLog << dbginf << "MGeomCam not found (no geometry information available)... aborting." << endl;
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101 | return kFALSE;
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102 | }
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103 |
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104 | fEvt = (MCerPhotEvt*)pList->FindObject(AddSerialNumber("MCerPhotEvt"));
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105 | if (!fEvt)
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106 | {
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107 | *fLog << dbginf << "MCerPhotEvt not found... aborting." << endl;
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108 | return kFALSE;
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109 | }
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110 |
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111 | fPed = (MPedestalCam*)pList->FindObject(AddSerialNumber("MPedestalCam"));
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112 | if (!fPed)
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113 | {
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114 | *fLog << dbginf << "MPedestalCam not found... aborting." << endl;
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115 | return kFALSE;
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116 | }
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117 |
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118 | fTime = (MArrivalTimeCam*)pList->FindObject(AddSerialNumber("MArrivalTimeCam"));
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119 | if (!fTime)
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120 | {
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121 | *fLog << dbginf << "MArrivalTimeCam not found... aborting." << endl;
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122 | return kFALSE;
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123 | }
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124 |
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125 | if (strlen(fIslName) > 0)
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126 | fIsl = (MIslands*)pList->FindObject(AddSerialNumber(fIslName));
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127 | else
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128 | fIsl = (MIslands*)pList->FindObject(AddSerialNumber("MIslands"));
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129 | if (!fIsl)
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130 | {
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131 | *fLog << dbginf << "MIslands not found... aborting." << endl;
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132 | return kFALSE;
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133 | }
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134 |
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135 | return kTRUE;
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136 | }
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137 |
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138 |
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139 |
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140 | Int_t MIslandClean::Process()
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141 | {
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142 | //
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143 | //eliminates the island with a signal-to-noise
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144 | //lower than a given limit
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145 | //
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146 | //if ( fIslandCleaningMethod == kNoTiming ){
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147 | if ( fIslandCleaningMethod == 1 ){
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148 | Int_t nisl = fIsl->GetIslNum();
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149 |
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150 | for(Int_t isl = 0; isl<nisl ; isl++)
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151 | {
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152 | if(fIsl->GetSigToNoise(isl) < fIslCleanThres)
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153 | {
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154 | for(Int_t idx = 0; idx<577; idx++)
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155 | {
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156 | MCerPhotPix &pix = (*fEvt)[idx];
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157 |
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158 | if (fIsl->GetIslId(idx) == isl)
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159 | pix.SetPixelUnused();
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160 | }
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161 | }
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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 | //eliminates the island with a signal-to-noise
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167 | //lower than a given limit
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168 | //
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169 | //else if( fIslandCleaningMethod == kTiming ){
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170 | else if( fIslandCleaningMethod == 0 ){
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171 | Int_t nisl = fIsl->GetIslNum();
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172 |
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173 | for(Int_t isl = 0; isl<nisl ; isl++)
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174 | {
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175 | //fIslCleanThreshold has different values, FIXME, put two variables
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176 |
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177 | if(fIsl->GetTimeSpread(isl) > fIslCleanThres)
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178 | {
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179 | for(Int_t idx = 0;idx<577; idx++)
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180 | {
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181 | MCerPhotPix &pix = (*fEvt)[idx];
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182 |
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183 | if (fIsl->GetIslId(idx) == isl)
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184 | pix.SetPixelUnused();
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185 | }
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186 | }
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187 |
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188 | }
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189 | }
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190 |
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191 | fEvt->SetReadyToSave();
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192 |
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193 | return kTRUE;
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194 |
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195 | }
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