2 /****************************************************************************
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3 * Origin: A.Matyja amatyja@cern.ch *
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4 ****************************************************************************/
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8 macro to create array of clusters from TPC digits
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9 input files - galice.root
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10 digits.root - file with digits - usualy use link to galice.root
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11 - in splitted mode - neccesary to create link to proper file
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13 output file - TPC.RecPoints.root
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16 // Warning - if cluster file AliTPCclusters.root already exist - macro exit and don't produce anything
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23 #include <iostream.h>
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25 #include "AliTPCv4.h"
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26 #include "AliTPCParam.h"
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27 #include "AliTPCclusterKr.h"
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28 #include "AliTPCclustererKr.h"
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30 #include "TStopwatch.h"
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34 Int_t FindKrClusters(){
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39 //char *ocdbpath ="local:///afs/cern.ch/alice/tpctest/OCDB";
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40 //char *ocdbpath ="local:///home/matyja/baza/OCDB";
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41 char *ocdbpath ="local:///data/baza/OCDB";
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43 ocdbpath="alien://folder=/alice/data/2007/LHC07w/OCDB/";
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45 printf("OCDB PATH = %s\n",ocdbpath);
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46 AliCDBManager * man = AliCDBManager::Instance();
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47 man->SetDefaultStorage(ocdbpath);
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50 AliRunLoader* rl = AliRunLoader::Open("galice.root");
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52 cerr<<"Can not open session"<<endl;
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56 AliTPCLoader *tpcl = (AliTPCLoader*)rl->GetLoader("TPCLoader");
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58 cerr<<"Can not get TPC Loader"<<endl;
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62 if (tpcl->LoadDigits()) {
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63 cerr<<"Error occured while loading digits"<<endl;
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67 if (rl->LoadgAlice()) {
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68 cerr<<"Error occured while LoadgAlice"<<endl;
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72 gAlice=rl->GetAliRun();
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74 cerr<<"Can't get gAlice !\n";
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78 TDirectory *cwd = gDirectory;
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80 AliTPCv4 *tpc = (AliTPCv4*)gAlice->GetDetector("TPC");
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81 Int_t ver = tpc->IsVersion();
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82 cerr<<"TPC version "<<ver<<" has been found !\n";
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86 AliTPCParam *param=(AliTPCParamSR *)gDirectory->Get("75x40_100x60_150x60");
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87 if (!param) {cerr<<"TPC parameters have not been found !\n"; return 4;}
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89 AliTPCDigitsArray *digarr=new AliTPCDigitsArray;
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90 digarr->Setup(param);
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92 cerr<<"It has begun"<<endl;
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99 AliTPCclustererKr *clusters = new AliTPCclustererKr();
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100 clusters->SetParam(param);
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101 clusters->SetOutput(output_tree);
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103 clusters->SetMinAdc(3);//signal threshold (everything below is treated as 0)
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104 clusters->SetMinTimeBins(2);//number of neighbouring timebins
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105 clusters->SetMaxPadRangeCm(5.);//distance of the cluster center to the center of a pad (in cm)
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106 clusters->SetMaxRowRangeCm(5.);//distance of the cluster center to the center of a padrow (in cm)
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107 clusters->SetMaxTimeRange(7.);//distance of the cluster center to the max time bin on a pad (in tackts)
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108 //ie. fabs(centerT - time)<7
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110 clusters->SetIsolCut(3);//set isolation cut threshold
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111 clusters->SetValueToSize(3.1);//cut reduce peak at 0
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113 Int_t nevmax=rl->GetNumberOfEvents();//number of events in run
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114 for(Int_t nev=0;nev<nevmax /*&& nev<1*/ ;nev++){
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117 TTree* input_tree= tpcl->TreeD();//tree with digits
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118 if (input_tree == 0x0){
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119 cerr << "Can not get TreeD for event " <<nev<<endl;
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122 digarr->ConnectTree(input_tree);
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123 clusters->SetInput(input_tree);
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124 clusters->SetDigArr(digarr);
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125 cout<<"Processing event "<<nev<<endl;
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126 clusters->FinderIO();
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130 timer.Stop(); timer.Print();
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132 delete rl;//cleans everything
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