PndGemFindHits.cxx

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//* $Id: */

// -------------------------------------------------------------------------
// -----                    PndGemFindHits source file                 -----
// -----                  Created 15/02/2009 by R. Karabowicz          -----
// -------------------------------------------------------------------------

#include "PndGemFindHits.h"

#include "PndGemDigi.h"
#include "PndGemCluster.h"
#include "PndGemDigiPar.h"
#include "PndGemHit.h"
#include "PndGemSensor.h"
#include "PndGemStation.h"
#include "PndGemMonitor.h"

#include "PndDetectorList.h"

#include "FairRootManager.h"
#include "FairRunAna.h"
#include "FairRuntimeDb.h"

#include "TClonesArray.h"
#include "TMath.h"
#include "TH2F.h"

#include <iomanip>

using std::cerr;
using std::cout;
using std::endl;
using std::fixed;
using std::flush;
using std::left;
using std::map;
using std::right;
using std::set;
using std::setprecision;
using std::setw;

// -----   Default constructor   ------------------------------------------
PndGemFindHits::PndGemFindHits() : 
  PndPersistencyTask("GEM Hit Finder", 1),
  fMonitor(NULL),
  fDigiPar(NULL),
  fDigis  (NULL),
  fHits   (NULL),
  fHitsTemp   (NULL),
  fMCPointBranchId(-1),
  fUseClusters(kFALSE),
  fTimeOrderedDigi(kFALSE),
  fPrepTime(0.),
  fSortTime(0.),
  fCreateTime(0.),
  fConfirmTime(0.),
  fActivateTime(0.),
  fAllTime(0.),
  fHitWindow(1.5),
  fTNofEvents(0),
  fTNofDigis (0),
  fTNofHits  (0),
  fTNofHitsTemp  (0)
{
        SetPersistency(kTRUE);
}
// -------------------------------------------------------------------------



// -----   Standard constructor   ------------------------------------------
PndGemFindHits::PndGemFindHits(Int_t iVerbose) 
  : PndPersistencyTask("GEMFindHits", iVerbose),
  fMonitor(NULL),
  fDigiPar(NULL),
  fDigis  (NULL),
  fHits   (NULL),
  fHitsTemp   (NULL),
  fMCPointBranchId(-1),
  fUseClusters(kFALSE),
  fTimeOrderedDigi(kFALSE),
  fPrepTime(0.),
  fSortTime(0.),
  fCreateTime(0.),
  fConfirmTime(0.),
  fActivateTime(0.),
  fAllTime(0.),
  fHitWindow(1.5),
  fTNofEvents(0),
  fTNofDigis (0),
  fTNofHits  (0),
  fTNofHitsTemp  (0)
{
        SetPersistency(kTRUE);
}
// -------------------------------------------------------------------------



// -----   Constructor with name   -----------------------------------------
PndGemFindHits::PndGemFindHits(const char* name, Int_t iVerbose) 
  : PndPersistencyTask(name, iVerbose),
  fMonitor(NULL),
  fDigiPar(NULL),
  fDigis  (NULL),
  fHits   (NULL),
  fHitsTemp   (NULL),
  fMCPointBranchId(-1),
  fUseClusters(kFALSE),
  fTimeOrderedDigi(kFALSE),
  fPrepTime(0.),
  fSortTime(0.),
  fCreateTime(0.),
  fConfirmTime(0.),
  fActivateTime(0.),
  fAllTime(0.),
  fHitWindow(1.5),
  fTNofEvents(0),
  fTNofDigis (0),
  fTNofHits  (0),
  fTNofHitsTemp  (0)
{
        SetPersistency(kTRUE);
}
// -------------------------------------------------------------------------



// -----   Destructor   ----------------------------------------------------
PndGemFindHits::~PndGemFindHits() {
  if ( fHits ) {
    fHits->Delete();
    delete fHits;
  }
  if ( fHitsTemp ) {
    fHitsTemp->Delete();
    delete fHitsTemp;
  }
}
// -------------------------------------------------------------------------



// -----   Public method Exec   --------------------------------------------
void PndGemFindHits::Exec(Option_t*) {
  if ( fVerbose > 0 ) cout << "-I- PndGemFindHits::Exec()" << endl; 
  //  cout << "======== PndGemFindHits::Exec(Event = " << fTNofEvents << " ) ====================" << endl;

  fTimer.Start();

  fTNofEvents++;

  Bool_t warn = kFALSE;

  // Clear output array
  fHits->Delete();
  fHitsTemp->Delete();

  fPrepTime+=fTimer.RealTime(); // preparation time
  fTimer.Continue();

  // Sort GEM digis with respect to sectors
  SortDigis();

  fSortTime+=fTimer.RealTime(); 
  fTimer.Continue();

  // Find hits in sectors
  Int_t nDigisF = 0;
  Int_t nDigisB = 0;
  Int_t nHits   = 0;
  Int_t nHitsTemp   = 0;

  //  cout << "GEM found hits: " << endl;
  
  Int_t nStations = fDigiPar->GetNStations();
  for (Int_t iStation=0; iStation<nStations; iStation++) {
    PndGemStation* station = (PndGemStation*)fDigiPar->GetStation(iStation);
    Int_t nDigisFInStation = 0;
    Int_t nDigisBInStation = 0;
    Int_t nHitsInStation   = 0;
    Int_t nSensors = station->GetNSensors();
    for (Int_t iSensor=0; iSensor<nSensors; iSensor++) {
      PndGemSensor* sensor = (PndGemSensor*)station->GetSensor(iSensor);

      set <Int_t> fSet, bSet;
      if ( fDigiMapF.find(sensor) == fDigiMapF.end() ) {
        cout << "-E- " << fName << "::Exec: sensor " 
             << sensor->GetSensorNr() << " of station " 
             << station->GetStationNr() << "not found in front map!" 
             << endl;
        warn = kTRUE;
        continue;
      }
      fSet = fDigiMapF[sensor];
      if ( fDigiMapB.find(sensor) == fDigiMapB.end() ) {
        cout << "-E- " << fName << "::Exec: sensor " 
             << sensor->GetSensorNr() << " of station " 
             << station->GetStationNr() << "not found in back map!" 
             << endl;
        warn = kTRUE;
        continue;
      }
      bSet = fDigiMapB[sensor];

      Int_t nDigisFInSensor = fSet.size();
      Int_t nDigisBInSensor = bSet.size();


      Int_t nHitsInSensor;
      //Int_t nHitsInSensor   = FindHits(sensor, fSet, bSet);
      
      // TimeBased use basically same method..
      if ( fTimeOrderedDigi ) {
        nHitsInSensor = FindHits(sensor, fSet, bSet);//return non-0 now.. why it was 0??
      }
      else {
        nHitsInSensor = FindHits2(sensor, fSet, bSet);//test version ok
      }
      
      if ( fVerbose > 2 ) 
        cout << "Sensor " << sensor->GetSensorNr() 
             << ", Digis front " << nDigisFInSensor 
             << ", Digis Back " << nDigisBInSensor
             << ", Hit combinations " << nHitsInSensor << endl;
      nHitsInStation   += nHitsInSensor;
      nDigisFInStation += nDigisFInSensor;
      nDigisBInStation += nDigisBInSensor;      
    }      // Sector loop
    
    if ( fVerbose > 1 ) cout << "Total for station " 
                             << station->GetStationNr() << ": Digis front "
                             << nDigisFInStation << ", digis back "
                             << nDigisBInStation << ", hit combinations "
                             << nHitsInStation << endl;
    nDigisB += nDigisBInStation;
    nDigisF += nDigisFInStation;
    nHitsTemp   += nHitsInStation;
    
  }       // Station loop
  
  if ( fVerbose > 1 ) cout << "Total for GEM " 
                           << ": Digis front "<< nDigisF 
                           << ", digis back "<< nDigisB 
                           << ", hit combinations "<< nHitsTemp << endl;
  
  fCreateTime+=fTimer.RealTime();
  fTimer.Continue();
  
  // can only confirm hits using clusters fromt the same event
  if ( fTimeOrderedDigi ) {
    if ( fUseClusters ) {
      ConfirmHits();
      fConfirmTime+=fTimer.RealTime();
      fTimer.Continue();
      // there should be another funciton, that will confirm the hits using fired strips in previous events, that could have obscured the cluster/hit finding in this event because of the small time difference
      // activate digis from the clusters in the PndGemMonitor
      ActivateDigis();
      fActivateTime+=fTimer.RealTime();
      fTimer.Continue();
      // check the digis in the previous events...
    }
  }
  else {
    ConfirmHits2();//test version ok
  }

  if ( fVerbose > 1 ) {
    //    cout << "-I- PndGemFindHits::Exec() Created " << fHits->GetEntriesFast() << " hits from " 
    //<< nDigisF << " front and " << nDigisB << " back digis" << endl;
    cout << endl;
    cout << "-I- " << fName << ":Event summary" << endl;
    cout << "    Active channels front side: " << nDigisF << endl;
    cout << "    Active channels back side : " << nDigisB << endl;
    cout << "    Hits created              : " << fHits->GetEntriesFast()   << endl;
    cout << "    Real time                 : " << fTimer.RealTime() 
         << endl;
  }
  if ( fVerbose == 1 ) {
    if ( warn ) cout << "- ";
    else        cout << "+ ";
    cout << setw(15) << left << fName << ": " << setprecision(4) << setw(8) 
         << fixed << right << fTimer.RealTime() 
         << " s, digis " << nDigisF << " / " << nDigisB << ", hits: " 
         << nHits << endl;
  }

  //  cout << "         PndGemFindHits::Exec. Created " << fHits->GetEntries() << " hits out of " << fDigis->GetEntries() << "  digis/clusters." << endl;
  
  fAllTime+=fTimer.RealTime();
  
  fTimer.Stop();
}
// -------------------------------------------------------------------------

    


// -----   Private method SetParContainers   -------------------------------
void PndGemFindHits::SetParContainers() {

  // Get run and runtime database
  FairRun* run = FairRun::Instance();
  if ( ! run ) Fatal("SetParContainers", "No analysis run");

  FairRuntimeDb* db = run->GetRuntimeDb();
  if ( ! db ) Fatal("SetParContainers", "No runtime database");

  // Get GEM digitisation parameter container
  fDigiPar = (PndGemDigiPar*) db->getContainer("PndGemDetectors");
}
// -------------------------------------------------------------------------



// -----   Private method Init   -------------------------------------------
InitStatus PndGemFindHits::Init() {

  // Get input array
  FairRootManager* ioman = FairRootManager::Instance();
  if ( ! ioman ) Fatal("Init", "No FairRootManager");

  if ( fUseClusters ) 
    fDigis = (TClonesArray*) ioman->GetObject("GEMCluster");
  else
    fDigis = (TClonesArray*) ioman->GetObject("GEMDigi");

  fMCPointBranchId = ioman->GetBranchId("GEMPoint");

  // Register output array
  fHits = new TClonesArray("PndGemHit", 1000);
  ioman->Register("GEMHit", "Hit in GEM", fHits, GetPersistency());

  // Test Register output array
  fHitsTemp = new TClonesArray("PndGemHit", 1000);
  ioman->Register("GEMHitTemp", "temp Hit in GEM", fHitsTemp, kFALSE);
  
  // Create sectorwise digi sets
  MakeSets();

  cout << "-I- " << fName.Data() << "::Init(). There are " << fDigiPar->GetNStations() << " GEM stations." << endl;
  cout << "-I- " << fName.Data() << "::Init(). Initialization succesfull." << endl;  
  
  PndGemStation* station = (PndGemStation*)fDigiPar->GetStation(0);
  PndGemSensor* sensor = (PndGemSensor*)station->GetSensor(0);
  cout << "sensor out rad is " << sensor->GetOuterRadius() << endl;

  // fChargeCorrHist = new TH2F("fChargeCorrHist","fChargeCorrHist",1000,0.,100.,1000,0.,100.);
  // fChargeDiffHist = new TH2F("fChargeDiffHist","fChargeDiffHist",1000,0.,100.,1000,-5.,5.);

  // Open GEM Monitor
  fMonitor = PndGemMonitor::Instance();

  for ( Int_t istat = 0 ; istat < fDigiPar->GetNStations() ; istat++ ) {
    station = (PndGemStation*)fDigiPar->GetStation(istat);
    for ( Int_t isens = 0 ; isens < station->GetNSensors() ; isens++ ) {
      sensor = (PndGemSensor*)station->GetSensor(isens);
      fMonitor->CreateSensorMonitor(*sensor);
    }
  }

  return kSUCCESS;
}
// -------------------------------------------------------------------------




// -----   Private method ReInit   -----------------------------------------
InitStatus PndGemFindHits::ReInit() {

  // Create sectorwise digi sets
  MakeSets();

  return kSUCCESS;
}
// -------------------------------------------------------------------------




// -----   Private method MakeSets   ---------------------------------------
void PndGemFindHits::MakeSets() {

  fDigiMapF.clear();
  fDigiMapB.clear();
  Int_t nStations = fDigiPar->GetNStations();
  for (Int_t iStation=0; iStation<nStations; iStation++) {
    PndGemStation* station = (PndGemStation*)fDigiPar->GetStation(iStation);
    Int_t nSensors = station->GetNSensors();
    for (Int_t iSensor=0; iSensor<nSensors; iSensor++) {
      PndGemSensor* sensor = (PndGemSensor*)station->GetSensor(iSensor);
      set<Int_t> a;
      fDigiMapF[sensor] = a;
      set<Int_t> b;
      fDigiMapB[sensor] = b;
    }
  }
}
// -------------------------------------------------------------------------

// -----   Private method ActivateDigis   --------------------------------------
void PndGemFindHits::ActivateDigis() {
  PndGemCluster* cluster;
  for ( Int_t iclus = 0 ; iclus < fDigis->GetEntries() ; iclus++ ) {
    cluster = (PndGemCluster*)fDigis->At(iclus);
 
    fMonitor->EnableCluster(fTNofEvents,iclus,cluster);
  }
}
// -------------------------------------------------------------------------
 
// -----   Private method ConfirmHits   --------------------
void PndGemFindHits::ConfirmHits() {
  if ( fVerbose > 0 ) cout << "-I- PndGemFindHits::ConfirmHits()" << endl; 
  Bool_t printInfo = kFALSE;
  if( fVerbose > 1 ) printInfo = kTRUE;

  PndGemSensor* sensor = NULL;
  PndGemHit* hit = NULL;
  PndGemCluster* cluster = NULL;

  for ( Int_t ihit = 0 ; ihit < fHits->GetEntriesFast() ; ihit++ ) {
    hit = (PndGemHit*)fHits->At(ihit);

    sensor = (PndGemSensor*)fDigiPar->GetSensor(hit->GetStationNr(),
                                                (3-hit->GetSensorNr ()));
    Double_t hitProjX = hit->GetX()*(sensor->GetZ0()/hit->GetZ());
    Double_t hitProjY = hit->GetY()*(sensor->GetZ0()/hit->GetZ());
    // if ( abs(hit->GetX()+3.8)<0.1 &&
    //   abs(hit->GetY()-2.0)<0.1 &&
    //   hit->GetStationNr()==2 )
    //   printInfo = kTRUE;
    // else
    //   printInfo = kFALSE;

    if ( printInfo ) {
      cout << "COMPARING HIT " << ihit << " at " 
           << hit->GetX() << ","
           << hit->GetY() << ","
           << hit->GetZ() << " @ "
           << hit->GetTimeStamp() << endl;
    }

    Bool_t hitConfirmed[2] = {kFALSE,kFALSE};
    Int_t  channelNr   [2] = {sensor->GetChannel(hitProjX,hitProjY,0),
                              sensor->GetChannel(hitProjX,hitProjY,1)};

    // check in previous events....
    for ( Int_t iside = 0 ; iside < 2 ; iside++ ) {
      Double_t lastChannelActivateTime = fMonitor->ChannelLastActiveAt(hit->GetStationNr(),
                                                                       (3-hit->GetSensorNr()),
                                                                       iside,
                                                                       channelNr[iside]);
      if ( printInfo ) {
        cout << " on " << hit->GetStationNr() << "." << 3-hit->GetSensorNr() << "." << iside << " channel " << channelNr[iside] << " was last active at " << lastChannelActivateTime << endl;
        //      fMonitor->Print();
      }
      if ( lastChannelActivateTime < 0 ) continue;
      if ( hit->GetTimeStamp()-lastChannelActivateTime < 100 && 
           hit->GetTimeStamp()-lastChannelActivateTime > -10 ) {
        if (printInfo) cout << "HIT CONFIRMED ON SIDE " << iside << " IN SOME PREVIOUS EVENT (" << hit->GetTimeStamp()-lastChannelActivateTime << " ns ago)" << endl;
        hitConfirmed[iside] = kTRUE;
      }
    }

    if ( hitConfirmed[0] == kFALSE || hitConfirmed[1] == kFALSE ) {
      for ( Int_t iclus = 0 ; iclus < fDigis->GetEntries() ; iclus++ ) {
        cluster = (PndGemCluster*)fDigis->At(iclus);
        
        if ( cluster->GetTimeStamp() < hit->GetTimeStamp() - 111. ||
             cluster->GetTimeStamp() > hit->GetTimeStamp() +  11. )
          continue;
        
        if ( cluster->GetStationNr() != hit->GetStationNr() ) continue;
        if ( cluster->GetSensorNr () == hit->GetSensorNr () ) continue;
        
        // should have some function in sensor for that:
        if ( channelNr[cluster->GetSide()] <= cluster->GetClusterEnd() &&
             channelNr[cluster->GetSide()] >= cluster->GetClusterBeg() ) {
          hitConfirmed[cluster->GetSide()] = kTRUE;
          if ( printInfo ) {
            cout << "HIT CONFIRMED ON SIDE " << cluster->GetSide() << " BY CLUSTER " << iclus << " at "
                 << (cluster->GetSide()==0?"F":"B") << "side on "
                 << cluster->GetStationNr() << "."
                 << cluster->GetSensorNr() << " from "
                 << (cluster->GetClusterBeg()) << " to "
                 << (cluster->GetClusterEnd()) << " **** "
                 << sensor->GetChannel(hitProjX,hitProjY,cluster->GetSide()) 
                 << ", time_diff = " << hit->GetTimeStamp() << " - " << cluster->GetTimeStamp() << "ns" 
                 << endl;
          }
        }
      }
    }

    if ( hitConfirmed[0] == kTRUE && hitConfirmed[1] == kTRUE ) {
      if ( printInfo ) cout << "GOOD HIT" << endl;
      ((PndGemHit*)fHits->At(ihit))->SetCharge(10.);
    }
    else {
      if ( printInfo ) cout << "   NO CLUSTER MATCHES TO THIS HIT" << endl;



    }
  }
}
// -------------------------------------------------------------------------

// -----   Private method ConfirmHits   --------------------
//Check corresponding sensor and store hit when both sensors have same location of hits
//Calculate acceptable width of hit matching based on Dx Dy 
//So far only for EB.. Channel activation is not considered...
void PndGemFindHits::ConfirmHits2() {
  if ( fVerbose > 0 ) cout << "-I- PndGemFindHits::ConfirmHits2()" << endl; 
  
  PndGemHit* hitTemp = NULL;//hit in all combination of clusters to read
  PndGemHit* hitTemp2 = NULL;//hit in all combination of clusters to compare
  PndGemSensor* sensor = NULL; 

  Double_t xHit[2],yHit[2],zHit[2];
  Double_t dx[2], dy[2], dz[2];
  TVector3 pos, dpos;

  Int_t nHits = fHits->GetEntriesFast();
  Int_t sensorDetId, hitDetId;
  Bool_t hitMatch = kFALSE;
  Bool_t hitMatch2 = kFALSE;
  
  // window to find corresponding hit on other sensor 
//   Double_t xHitW=1.5; //3rd attempt, 1 seems to be too narrow (7% missed), 2 seems too wide (10% more Hits)
//   Double_t yHitW=1.5; 
  Double_t xHitW = fHitWindow; 
  Double_t yHitW = fHitWindow; 
  
  if (! fUseClusters ) {
     if ( fVerbose > 1 ) cout << " Hit finding window is constant: xHitW=" << xHitW << " yHitW=" << yHitW << endl;
  }
  
  for ( Int_t ihitTemp = 0 ; ihitTemp < fHitsTemp->GetEntriesFast() ; ihitTemp++ ) {
    hitTemp = (PndGemHit*)fHitsTemp->At(ihitTemp);
    
    Int_t hitTempDetId = hitTemp->GetDetectorID();
    Int_t testGemHit = hitTempDetId & kGemHit << 21;
    if ( fVerbose > 1 ) {
      cout << "Check kGemHit bit of hitTempDetId=" << hitTempDetId 
           << " kGemHit=" << kGemHit << " masked value testGemHit=" << testGemHit <<endl; 
    } 
    if(  testGemHit != 0 ) {
      if ( fVerbose > 1 ) {
        cout << "ihitTemp " << ihitTemp << " : already used... skip" <<endl;  
      }
      continue;
    }
    
    Int_t staNr = hitTemp->GetStationNr();
    Int_t senNr = hitTemp->GetSensorNr();

    xHit[0] = hitTemp->GetX();
    yHit[0] = hitTemp->GetY();
    zHit[0] = hitTemp->GetZ();
    dx[0] = hitTemp->GetDx();
    dy[0] = hitTemp->GetDy();
    dz[0] = hitTemp->GetDz();

    sensor = (PndGemSensor*)fDigiPar->GetSensor(hitTemp->GetStationNr(),
                                                hitTemp->GetSensorNr ());
    sensorDetId = sensor->GetDetectorId();
    Double_t senD = sensor->GetD();// sensor thickness 1cm (?)
    
    if ( fVerbose > 1 ) {
      cout << "COMPARING HitTemp ihitTemp " << ihitTemp 
           << " of staNr " << staNr
           << " senNr " << senNr
           << " at (" << xHit[0] << "," << yHit[0] << "," << zHit[0]
           << ") time " << hitTemp->GetTimeStamp() 
           <<" dx " << dx[0] << " dy " << dy[0]
           <<" sensorDetId " << sensorDetId << " senThick " << senD
           << endl;
    }
    
    hitMatch = kFALSE;
    for ( Int_t ihitTemp2 = ihitTemp+1 ; ihitTemp2 < fHitsTemp->GetEntriesFast() ; ihitTemp2++ ) {
      hitTemp2 = (PndGemHit*)fHitsTemp->At(ihitTemp2);
      if ( fVerbose > 1 ) cout << "WITH ihitTemp2 " << ihitTemp2;

      hitMatch2 = kFALSE;
      Int_t hitTemp2DetId = hitTemp2->GetDetectorID();
      Int_t test2GemHit = hitTemp2DetId & kGemHit << 21;
      if ( fVerbose > 2 ) {
        cout << " hitTemp2DetId=" << hitTempDetId 
             << " kGemHit=" << kGemHit << " masked value test2GemHit=" << test2GemHit <<endl; 
      } 
//       if(  test2GemHit != 0 ) {
//      if ( fVerbose > 1 ) cout << " ihitTemp2 " << ihitTemp2 << " : already used... skip" <<endl;
//      continue;
//       }
      
      Int_t staNr2 = hitTemp2->GetStationNr();
      if ( fVerbose > 1 ) cout << " ihitTemp2 " << ihitTemp2 << " staNr " << staNr2;
      if( staNr != staNr2 ) {
        if ( fVerbose > 1 ) cout << " : diff Station .. skip " << endl;
        continue;
      }
      Int_t senNr2 = hitTemp2->GetSensorNr();
      if ( fVerbose > 1 ) cout << " of senNr " << senNr2 ; 
      if( senNr == senNr2 ) {
        if ( fVerbose > 1 ) cout << " : same sensor.. skip " << endl;
        continue;
      }
      xHit[1] = hitTemp2->GetX();
      yHit[1] = hitTemp2->GetY();
      zHit[1] = hitTemp2->GetZ();
      dx[1] = hitTemp2->GetDx();
      dy[1] = hitTemp2->GetDy();
      dz[1] = hitTemp2->GetDz();
      if ( fVerbose > 1 ) {
        cout << " at (" << xHit[1] << "," << yHit[1] << "," << zHit[1]
             << ") time " << hitTemp2->GetTimeStamp() <<" dx "  << dx[1] << " dy " << dy[1] << endl;
      }

      //calc window to search hit on other sensor based on Dx Dy of Hit
      //assuming straight path (NOT assuming path from target)
      if ( fUseClusters ) {
        xHitW = TMath::Sqrt(12.) * dx[0] * TMath::Abs( zHit[0] - zHit[1] ) / senD + TMath::Sqrt(12.) * dx[0] * 0.5; 
        yHitW = TMath::Sqrt(12.) * dy[0] * TMath::Abs( zHit[0] - zHit[1] ) / senD + TMath::Sqrt(12.) * dx[0] * 0.5;
        if ( fVerbose > 1 ) {
          cout << " Hit finding window based on dx dy: xHitW=" << xHitW << " yHitW=" << yHitW << endl;
        }
      }
      
      if( xHit[0] - xHitW < xHit[1] && xHit[1] < xHit[0] + xHitW ){
        if( yHit[0] - yHitW < yHit[1] && yHit[1] < yHit[0] + yHitW ){

          hitTempDetId = hitTemp->GetDetectorID();
          testGemHit = hitTempDetId & kGemHit << 21;
          if(  testGemHit != 0 ) {
            if ( fVerbose > 1 ) {
              cout << "ihitTemp " << ihitTemp << " : already stored... " <<endl;  
            }
          }
          else {
            pos.SetXYZ(xHit[0], yHit[0], zHit[0]);
            dpos.SetXYZ(dx[0], dy[0], dz[0]);
            hitDetId = hitTemp->GetDetectorID() | kGemHit << 21;
            
            TString fromStr = "GEMDigi";
            if ( fUseClusters ) fromStr = "GEMCluster";

            new ((*fHits)[nHits++]) PndGemHit(hitDetId, 
                                              pos, dpos,  
                                              hitTemp->GetCharge(),
                                              hitTemp->GetTimeStamp(),
                                              hitTemp->GetDigiNr(0),hitTemp->GetDigiNr(1), 
                                              hitTemp->GetDr(), hitTemp->GetDp(), 
                                              hitTemp->GetRefIndex(),fromStr);
            if ( fVerbose > 1 ) {
              cout << "ihitTemp "<< ihitTemp<<"  xHit yHit zHit " << pos.X() << " / " << pos.Y() << " / " << pos.Z() << "  stored as " << nHits << " from " << fromStr.Data() << "." << hitTemp->GetDigiNr(0) << " / " << hitTemp->GetDigiNr(1) << endl;
            }
            ((PndGemHit*)fHitsTemp->At(ihitTemp))->SetDetectorID(hitDetId);
            fTNofHits++;
          }
          
          
          if(  test2GemHit != 0 ) {
            if ( fVerbose > 1 ) {
              cout << "ihitTemp2 " << ihitTemp2 << " : already stored... " <<endl;  
            }
          }
          else {
            pos.SetXYZ(xHit[1], yHit[1], zHit[1]);
            dpos.SetXYZ(dx[1], dy[1], dz[1]);  
            hitDetId = hitTemp2->GetDetectorID() | kGemHit << 21;
            
            TString fromStr = "GEMDigi";
            if ( fUseClusters ) fromStr = "GEMCluster";

            new ((*fHits)[nHits++]) PndGemHit(hitDetId, 
                                              pos, dpos,  
                                              hitTemp2->GetCharge(),
                                              hitTemp2->GetTimeStamp(),
                                              hitTemp2->GetDigiNr(0),hitTemp2->GetDigiNr(1), 
                                              hitTemp2->GetDr(), hitTemp2->GetDp(), 
                                              hitTemp2->GetRefIndex(),fromStr);

            if ( fVerbose > 1 ) {
              cout << "ihitTemp2 "<< ihitTemp<<"  xHit yHit zHit " << pos.X() << " / " << pos.Y() << " / " << pos.Z() << "  stored as " << nHits << " from " << fromStr.Data() << "." << hitTemp2->GetDigiNr(0) << " / " << hitTemp2->GetDigiNr(1) << endl;
            }
            ((PndGemHit*)fHitsTemp->At(ihitTemp2))->SetDetectorID(hitDetId);
            fTNofHits++;
          }
          
          hitMatch = kTRUE;
          hitMatch2 = kTRUE;
        }
      }
      if ( hitMatch2 == kTRUE ) {
        if ( fVerbose > 1 ) cout << "GOOD HIT" << endl;
        //break;
      }
      else {
        if ( fVerbose > 2 ) cout << "NO MATCHE TO THIS HIT ihitTemp2 = " << ihitTemp2<< endl;
      }
    }   
    if ( hitMatch == kFALSE )
      if ( fVerbose > 1 ) cout << "NO MATCHES OF HIT ihitTemp = " << ihitTemp << endl;
  }
}
// -------------------------------------------------------------------------


// // -----   Private method ConfirmHits   --------------------------------------
// void PndGemFindHits::ConfirmHits() {
//   PndGemSensor* sensor = NULL;
//   PndGemHit* hit = NULL;
//   PndGemCluster* cluster = NULL;

//   for ( Int_t ihit = 0 ; ihit < fHits->GetEntriesFast() ; ihit++ ) {
//     hit = (PndGemHit*)fHits->At(ihit);

//     cout << "trying to confirm hit " << ihit << " at " 
//       << hit->GetX() << ","
//       << hit->GetY() << ","
//       << hit->GetZ() << " @ "
//       << hit->GetTimeStamp() << endl;

//     sensor = (PndGemSensor*)fDigiPar->GetSensor(hit->GetStationNr(),
//                                              (3-hit->GetSensorNr ()));
//     Double_t hitProjX = hit->GetX()*(sensor->GetZ0()/hit->GetZ());
//     Double_t hitProjY = hit->GetY()*(sensor->GetZ0()/hit->GetZ());

//     cout << "   with hits at sensor @ z = " << sensor->GetZ0() << endl;
//     Int_t hitConfirmed = 0;
      
//     }
//     if ( hitConfirmed < 2 ) 
//       cout << "   NO CLUSTER MATCHES TO THIS HIT" << endl;
//     else
//       ((PndGemHit*)fHits->At(ihit))->SetCharge(10.);
//   }
// }
// -------------------------------------------------------------------------

// -----   Private method SortDigis   --------------------------------------
void PndGemFindHits::SortDigis() {

  // Check input array
  if ( ! fDigis ) {
    cout << "-E- " << fName << "::SortDigis: No input array!" << endl;
    return;
  }

  // Clear sensor digi sets
  map<PndGemSensor*, set<Int_t> >::iterator mapIt;
  for (mapIt=fDigiMapF.begin(); mapIt!=fDigiMapF.end(); mapIt++)
    ((*mapIt).second).clear();
  for (mapIt=fDigiMapB.begin(); mapIt!=fDigiMapB.end(); mapIt++)
    ((*mapIt).second).clear();

  // Fill digis into sets
  PndGemDigi*     digi = NULL;
  //PndGemCluster* clust = NULL; //[R.K.01/2017]unused variable?
  PndGemSensor* sensor = NULL;
  Int_t stationNr = -1;
  Int_t sensorNr  = -1;
  Int_t iSide     = -1;
  Int_t nDigis = fDigis->GetEntriesFast();

  fTNofDigis += nDigis;

  for (Int_t iDigi=0; iDigi<nDigis; iDigi++) {
    digi  = (PndGemDigi*)    fDigis->At(iDigi);
    //clust = (PndGemCluster*) fDigis->At(iDigi); //[R.K.01/2017]unused variable?
    stationNr = digi->GetStationNr();
    sensorNr  = digi->GetSensorNr();
    iSide     = digi->GetSide();

    //Strange...this case to do continue..?? 
    //it doesn't exist in apr13, but exists already on trunk r23148. 
    //(this code is taken from r24527). Comment out ok?
    //if ( !( sensorNr == 1 && iSide == 0 ) && clust->GetClusterEnd()-clust->GetClusterBeg() <= 1 ) {
    //  //      cout << "THE DIGI " << iDigi << ", DET ID = " << digi->GetDetectorId() << " in STATION " << stationNr << " SENSOR " << sensorNr << " SIDE " << iSide << " -> " << clust->GetClusterBeg() << " : " << clust->GetClusterEnd() << endl;
    //  continue;
    //}

    //    cout << "THE DIGI " << iDigi << ", DET ID = " << digi->GetDetectorId() << " in STATION " << stationNr << " SENSOR " << sensorNr << " SIDE " << iSide << endl;
    //    cout << "digi #" << iDigi+1 << " in station " << stationNr << " sensor " << sensorNr << " channel " << digi->GetChannelNr() << endl;

    sensor = fDigiPar->GetSensor(stationNr, sensorNr);
    //    cout << "Looking for station " << stationNr << " sensor " << sensorNr << " side " << iSide << endl;
    if (iSide == 0 ) {
      if ( fDigiMapF.find(sensor) == fDigiMapF.end() ) {
        cerr << "-E- " << fName << "::SortDigits:: sensor " << sensorNr
             << " of station " << stationNr 
             << " not found in digi scheme (F)!" << endl;
        continue;
      }
      fDigiMapF[sensor].insert(iDigi);      
    }
    else if (iSide == 1 ) {
      if ( fDigiMapB.find(sensor) == fDigiMapB.end() ) {
        cerr << "-E- " << fName << "::SortDigits:: sensor " << sensorNr
             << " of station " << stationNr 
             << " not found in digi scheme (B)!" << endl;
        continue;
      }
      fDigiMapB[sensor].insert(iDigi);      
    }
  }

}
// -------------------------------------------------------------------------


    

// -----   Private method FindHits   ---------------------------------------
//one should add case of UseCluster to carry information of cluster Beg and End (or?)
Int_t PndGemFindHits::FindHits(PndGemSensor* sensor, 
                               set<Int_t>& fSet, set<Int_t>& bSet) {

  //Int_t    iType  = sensor->GetType(); //[R.K. 01/2017] unused variable?
 
  Double_t sigmaX = 1., sigmaY = 2.;
  
  Int_t iDigiF = -1;
  Int_t iDigiB = -1;
  Double_t iChanF = -1;
  Double_t iChanB = -1;
  Int_t nHits = fHits->GetEntriesFast();
  Int_t nHitsInSensor = 0;
  Double_t xHit;
  Double_t yHit;
  Double_t zHit;
  Double_t dx, dy, dr, dp;
  TVector3 pos, dpos;
  PndGemDigi* digiF = NULL;
  PndGemDigi* digiB = NULL;
  //PndGemCluster* clusterB = NULL; //[R.K.01/2017]unused variable?

  set<Int_t>::iterator it1;
  set<Int_t>::iterator it2;

  for (it1=fSet.begin(); it1!=fSet.end(); it1++) {
    iDigiF = (*it1);
    digiF  = (PndGemDigi*) fDigis->At(iDigiF);
    if ( ! digiF ) {
      cout << "-W- " << GetName() << "::FindHits: Invalid digi index " 
           << iDigiF << " in front set of sensor " 
           << sensor->GetDetectorName() << endl;
      continue;
    }
    iChanF = digiF->GetChannelNr();
    for (it2=bSet.begin(); it2!=bSet.end(); it2++) {
      iDigiB = (*it2);
      digiB  = (PndGemDigi*) fDigis->At(iDigiB);
      //clusterB = (PndGemCluster*) fDigis->At(iDigiB); //[R.K.01/2017]unused variable?
      if ( ! digiB ) {
        cout << "-W- " << GetName() << "::FindHits: Invalid digi index " 
             << iDigiB << " in front set of sensor " 
             << sensor->GetDetectorName() << endl;
        continue;
      }
      iChanB = digiB->GetChannelNr();
      Int_t sensorDetId = sensor->Intersect(iChanF,iChanB,xHit,yHit,zHit,dx,dy,dr,dp);
      //      cout << "intersecting channels " << iChanF << " and " << iChanB << " gave " << sensorDetId << endl;
      //        cout << "got the following position from sensor " << sensorDetId << " : (" 
      //             << xHit << ", " << yHit << ", " << zHit << ")" << endl;
      if ( sensorDetId == -1 ) continue;

      Double_t rad = TMath::Sqrt(xHit*xHit+yHit*yHit);
      if ( rad < sensor->GetInnerRadius() || rad > sensor->GetOuterRadius() ) {
        cout << " point " << xHit << "," << yHit << " (" << rad << ") is still ok??? at station " 
             << sensor->GetStationNr() << "." 
             << sensor->GetSensorNr() << endl;
      }
      
      //Don't we use information of Cluster pos Min Max to set error of Hit??
      sigmaX = dx;
      sigmaY = dy;

//       if ( fUseClusters ) {
//      zHit += sensor->GetD()/2.;
//      if ( sensor->GetType() ) 
//        zHit -= sensor->GetD();
//       }
      //      cout << "what about sensorz0 = " << sensor->GetZ0() << " or zHit = " << zHit << endl;

      pos.SetXYZ(xHit, yHit, zHit);
      dpos.SetXYZ(sigmaX, sigmaY, sensor->GetD());

      //      cout << "SETTING ERROR TO " << sigmaX << " " << sigmaY << " " << sensor->GetD() << " at " << zHit << endl;

      //      if ( TMath::Abs(xHit) < 2. ) continue;
      
      Int_t refIndex = -1;
      for ( Int_t irf1 = digiF->GetNIndices()-1 ; irf1 >= 0 ; irf1-- ) {
        if ( digiF->GetLink(irf1).GetType() != fMCPointBranchId ) continue;
        for ( Int_t irf2 = digiB->GetNIndices()-1 ; irf2 >= 0 ; irf2-- ) {
          if ( digiB->GetLink(irf2).GetType() != fMCPointBranchId ) continue;
          if ( digiF->GetIndex(irf1) == digiB->GetIndex(irf2) )
            refIndex = digiF->GetIndex(irf1);
        }
      }

      Int_t hitDetId = sensorDetId | kGemHit << 21;

      //      cout << nHits << " : " << pos.X() << " " << pos.Y() << " " << pos.Z() << endl;

      // fChargeCorrHist->Fill(digiF->GetCharge(),digiB->GetCharge());
      // fChargeDiffHist->Fill((digiF->GetCharge()+digiB->GetCharge())/2.,
      //                            (digiF->GetCharge()-digiB->GetCharge()));

      //      if ( TMath::Abs(digiF->GetCharge()-digiB->GetCharge()) > 0.02+(digiF->GetCharge()+digiB->GetCharge())/200. ||
      
      // How critical are they??? may I open more??
      if ( TMath::Abs(digiF->GetCharge()-digiB->GetCharge()) > 5. || 
           TMath::Abs(digiF->GetTimeStamp()-digiB->GetTimeStamp()) > 5. )
        continue;

      TString fromStr = "GEMDigi";
      if ( fUseClusters ) fromStr = "GEMCluster";
      new ((*fHits)[nHits++]) PndGemHit(hitDetId, pos, dpos,  
                                        (digiF->GetCharge()+digiB->GetCharge())/2.,
                                        (digiF->GetTimeStamp()+digiB->GetTimeStamp())/2.,
                                        iDigiF, iDigiB, 
                                        dr, dp, refIndex,fromStr);

      fTNofHits++;
      nHitsInSensor++;
    }
  }

  //  return 0;
  return nHitsInSensor;
}
// -------------------------------------------------------------------------


// -----   Private method FindHits   ---------------------------------------
//create hits for all combination and store in fHitsTemp..
//carry information of cluster width to dpos..
Int_t PndGemFindHits::FindHits2(PndGemSensor* sensor, 
                                set<Int_t>& fSet, set<Int_t>& bSet) {
  if ( fVerbose > 0 ) cout << "-I- PndGemFindHits::FindHits2(). Station " << sensor->GetStationNr() << " sensor " << sensor->GetSensorNr() << endl; 

  //Int_t    iType  = sensor->GetType(); //[R.K. 01/2017] unused variable?
 
  Double_t sigmaX = 1., sigmaY = 2., sigmaZ;
  Double_t sigmaR, sigmaP;
  
  Int_t iDigiF = -1;
  Int_t iDigiB = -1;
  Double_t iChanF = -1;
  Double_t iChanB = -1;
  Double_t iChanFMn,iChanFMx;
  Double_t iChanBMn,iChanBMx;
  Int_t nHitsTemp = fHitsTemp->GetEntriesFast();
  Int_t nHitsInSensor = 0;
  Double_t xHit;
  Double_t yHit;
  Double_t zHit;
  Double_t dx, dy, dr, dp;
  TVector3 pos, dpos;
  PndGemDigi* digiF = NULL;
  PndGemDigi* digiB = NULL;
  PndGemCluster* clusterF = NULL;
  PndGemCluster* clusterB = NULL;

  Double_t xMnMn,xMxMx,xMnMx,xMxMn;
  Double_t yMnMn,yMxMx,yMnMx,yMxMn;

  set<Int_t>::iterator it1;
  set<Int_t>::iterator it2;

  for (it1=fSet.begin(); it1!=fSet.end(); it1++) {
    iDigiF = (*it1);
    digiF  = (PndGemDigi*) fDigis->At(iDigiF);
    clusterF = (PndGemCluster*) fDigis->At(iDigiF);
    if ( ! digiF ) {
      cout << "-W- " << GetName() << "::FindHits: Invalid digi index " 
           << iDigiF << " in front set of sensor " 
           << sensor->GetDetectorName() << endl;
      continue;
    }
    iChanF = digiF->GetChannelNr();
    if ( fUseClusters ) {
      iChanFMn = clusterF->GetClusterBeg();
      iChanFMx = clusterF->GetClusterEnd();
    }
    for (it2=bSet.begin(); it2!=bSet.end(); it2++) {
      iDigiB = (*it2);
      digiB  = (PndGemDigi*) fDigis->At(iDigiB);
      clusterB = (PndGemCluster*) fDigis->At(iDigiB);
      if ( ! digiB ) {
        cout << "-W- " << GetName() << "::FindHits: Invalid digi index " 
             << iDigiB << " in front set of sensor " 
             << sensor->GetDetectorName() << endl;
        continue;
      }
      iChanB = digiB->GetChannelNr();
      if ( fUseClusters ) {
        iChanBMn = clusterB->GetClusterBeg();
        iChanBMx = clusterB->GetClusterEnd();
      }
      
      Int_t sensorDetId = sensor->Intersect(iChanF,iChanB,xHit,yHit,zHit,dx,dy,dr,dp);      
      if ( fVerbose > 1 ) {
        cout << "Intersect chF " << iChanF << " chB " << iChanB << " detID " << sensorDetId << endl;
        cout << "at (" << xHit << ", " << yHit << ", " << zHit << ")"
             << "dx " << dx << " dy " << dy << " dr " << dr << " dp " << dp
             << endl;
      }
      if ( sensorDetId == -1 ){
        if ( fVerbose > 2 ) {
          cout << "no intersect.. skip " <<endl; 
        }         
        continue;
      }

      pos.SetXYZ(xHit, yHit, zHit);      
      Double_t rad = TMath::Sqrt(xHit*xHit+yHit*yHit);
      if ( rad < sensor->GetInnerRadius() || rad > sensor->GetOuterRadius() ) {
        cout << "-W- !! point " << xHit << "," << yHit << " (" << rad << ") is still ok??? at station " 
             << sensor->GetStationNr() << "." << sensor->GetSensorNr() << endl;
      }
      //store resolution of the hit pos
      sigmaX = dx;//basically reso of single strip
      sigmaY = dy;//basically reso of single strip
      sigmaZ = sensor->GetD();//
      sigmaR = dr;//basically reso of single strip
      sigmaP = dp;//basically reso of single strip

      //take channel Beg and End for dpos when Cluster is used
      //Diagonal lines of the overlaped part are used to extract dx dy and longer one is taken
      //no check on dr dp, no comparison with original resolution sigmaX sigmaY.. ok?
      if ( fUseClusters ) {
        Int_t testMnMn = sensor->Intersect(iChanFMn,iChanBMn,xMnMn,yMnMn,zHit,dx,dy,dr,dp);
        Int_t testMxMx = sensor->Intersect(iChanFMx,iChanBMx,xMxMx,yMxMx,zHit,dx,dy,dr,dp);
        Int_t testMnMx = sensor->Intersect(iChanFMn,iChanBMx,xMnMx,yMnMx,zHit,dx,dy,dr,dp);
        Int_t testMxMn = sensor->Intersect(iChanFMx,iChanBMn,xMxMn,yMxMn,zHit,dx,dy,dr,dp);
        Double_t dx1 = -1;
        Double_t dx2 = -1;
        Double_t dy1 = -1;
        Double_t dy2 = -1;
        if( testMnMn != -1 && testMxMx != -1 ) {
          dx1 = TMath::Abs( xMnMn - xMxMx );
          dy1 = TMath::Abs( yMnMn - yMxMx );
          if( testMnMx != -1 && testMxMn != -1 ) {
            dx2 = TMath::Abs( xMnMx - xMxMn );
            dy2 = TMath::Abs( yMnMx - yMxMn ); 
            sigmaX = TMath::Max( dx1, dx2 ) / TMath::Sqrt(12.);
            sigmaY = TMath::Max( dy1, dy2 ) / TMath::Sqrt(12.);
            if ( fVerbose > 1 ) {
              cout << "fUseCluster is TRUE: dx dy of clusters " << sigmaX << " " << sigmaY << " are calculated for Hits"<< endl;
            }
          }       
        }
      }
      dpos.SetXYZ(sigmaX, sigmaY, sigmaZ);

      
      Int_t refIndex = -1;
      for ( Int_t irf1 = digiF->GetNIndices()-1 ; irf1 >= 0 ; irf1-- ) {
        if ( digiF->GetLink(irf1).GetType() != fMCPointBranchId ) continue;
        for ( Int_t irf2 = digiB->GetNIndices()-1 ; irf2 >= 0 ; irf2-- ) {
          if ( digiB->GetLink(irf2).GetType() != fMCPointBranchId ) continue;
          if ( digiF->GetIndex(irf1) == digiB->GetIndex(irf2) )
            refIndex = digiF->GetIndex(irf1);
        }
      }
      
      // Hit bit kGemHit will be put when the Hit matches on both sensor.. or problem?
      Int_t hitDetId = sensorDetId;
      //      Int_t hitDetId = sensorDetId | kGemHit << 21;
      
      // How critical are they??? may I open more??
      //   SO FAR COMMENTED !! ok??
      //       if ( TMath::Abs(digiF->GetCharge()-digiB->GetCharge()) > 5. || 
      //           TMath::Abs(digiF->GetTimeStamp()-digiB->GetTimeStamp()) > 5. )
      //        continue;
      
      TString fromStr = "GEMDigi";
      Double_t hitTimeStamp = (digiF->GetTimeStamp()+digiB->GetTimeStamp())/2.;
      Double_t hitCharge    = (digiF->GetCharge()   +digiB->GetCharge()   )/2.;
      if ( fUseClusters ) {
        fromStr = "GEMCluster";
        hitTimeStamp = (clusterF->GetTimeStamp()+clusterB->GetTimeStamp())/2.;
        hitCharge    = (clusterF->GetCharge()   +clusterB->GetCharge()   )/2.;
      }
      new ((*fHitsTemp)[nHitsTemp++]) PndGemHit(hitDetId, pos, dpos,  
                                                hitCharge,
                                                hitTimeStamp,
                                                iDigiF, iDigiB, 
                                                sigmaR, sigmaP, refIndex, fromStr);
          
      fTNofHitsTemp++;
      nHitsInSensor++;
    }
  }
  
  //  return 0;
  return nHitsInSensor;
}
// -------------------------------------------------------------------------


// -----   Public method Finish   ------------------------------------------
void PndGemFindHits::Finish() {
  if ( fHits ) fHits->Clear();

//  fChargeDiffHist->Draw("colz");

  cout << "-------------------- " << fName.Data() << " : Summary -----------------------" << endl;
  cout << " Events:        " << setw(10) << fTNofEvents << endl;
  cout << " Digis:         " << setw(10) << fTNofDigis  << "    ( " << (Double_t)fTNofDigis/((Double_t)fTNofEvents) << " per event )" << endl;
  cout << " HitsTemp:          " << setw(10) << fTNofHitsTemp   << "    ( " << (Double_t)fTNofHitsTemp /((Double_t)fTNofEvents) << " per event )" << endl;
  cout << " Hits:          " << setw(10) << fTNofHits   << "    ( " << (Double_t)fTNofHits /((Double_t)fTNofEvents) << " per event )" << endl;
  cout << "                       -->    ( " << (Double_t)fTNofHits  /((Double_t)fTNofEvents)/((Double_t)fDigiPar->GetNSensors()) << " per sensor )" << endl;
  cout << "                       -->    ( " << (Double_t)fTNofHits  /((Double_t)fTNofDigis ) << " per digi )" << endl;
  cout << "---------------------------------------------------------------------" << endl; 

  cout << " >>> HF >>> prep    time = " << fPrepTime << "s      (get data from input)" << endl;
  cout << " >>> HF >>> sort    time = " << fSortTime-fPrepTime << "s    (sort clusters, " << fSortTime << ")" << endl;
  cout << " >>> HF >>> create  time = " << fCreateTime-fSortTime << "s    (create hits, " << fCreateTime << ")" << endl;
  cout << " >>> HF >>> confirm time = " << fConfirmTime-fCreateTime << "s    (confirm hits, " << fConfirmTime << ")" << endl;
  cout << " >>> HF >>> activ.  time = " << fActivateTime-fConfirmTime << "s      (activate digis, " << fActivateTime << ")" << endl;
  cout << " >>> HF >>> all     time = " << fAllTime-fActivateTime << "s       (all time spent in Exec, " << fAllTime << ")" << endl;
  cout << "---------------------------------------------------------------------" << endl; 

}
// -------------------------------------------------------------------------


ClassImp(PndGemFindHits)