X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=TRD%2FAliTRDtracker.cxx;h=7bed987440125da1f0887171cfb23a05a7457900;hb=e4db522f65289f9a172a85cc86d1da14380fb689;hp=4c9b912355da8641c602f2708d0cddc83156d8e4;hpb=7b580082b3fcbb7f70c37b9938e980cfe7453e71;p=u%2Fmrichter%2FAliRoot.git diff --git a/TRD/AliTRDtracker.cxx b/TRD/AliTRDtracker.cxx index 4c9b912355d..7bed9874401 100644 --- a/TRD/AliTRDtracker.cxx +++ b/TRD/AliTRDtracker.cxx @@ -17,136 +17,182 @@ /////////////////////////////////////////////////////////////////////////////// // // -// The standard TRD tracker // +// The standard TRD tracker // +// Based on Kalman filltering approach // +// // +// Authors: // +// M. Ivanov (Marian.Ivanov@cern.ch) // +// Y. Belikov (Jouri.Belikov@cern.ch) // // // /////////////////////////////////////////////////////////////////////////////// -#include -#include #include -#include +#include +#include +#include #include +#include +#include +#include + +#include "AliESDEvent.h" +#include "AliESDtrack.h" +#include "AliAlignObj.h" +#include "AliRieman.h" +#include "AliTrackPointArray.h" #include "AliTRDgeometry.h" #include "AliTRDpadPlane.h" -#include "AliTRDgeometryFull.h" +#include "AliTRDgeometry.h" #include "AliTRDcluster.h" #include "AliTRDtrack.h" -#include "AliESD.h" - +#include "AliTRDseed.h" #include "AliTRDcalibDB.h" #include "AliTRDCommonParam.h" - -#include "TTreeStream.h" -#include "TGraph.h" #include "AliTRDtracker.h" -#include "TLinearFitter.h" -#include "AliRieman.h" -#include "AliTrackPointArray.h" -#include "AliAlignObj.h" #include "AliTRDReconstructor.h" -// - -ClassImp(AliTRDtracker) -ClassImp(AliTRDseed) +#include "AliTRDCalibraFillHisto.h" +ClassImp(AliTRDtracker) +const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5; // +const Float_t AliTRDtracker::fgkLabelFraction = 0.8; // +const Double_t AliTRDtracker::fgkMaxChi2 = 12.0; // +const Double_t AliTRDtracker::fgkMaxSnp = 0.95; // Maximum local sine of the azimuthal angle +const Double_t AliTRDtracker::fgkMaxStep = 2.0; // Maximal step size in propagation - const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5; - const Float_t AliTRDtracker::fgkLabelFraction = 0.8; - const Double_t AliTRDtracker::fgkMaxChi2 = 12.; - const Double_t AliTRDtracker::fgkMaxSnp = 0.95; // correspond to tan = 3 - const Double_t AliTRDtracker::fgkMaxStep = 2.; // maximal step size in propagation - - -// +//_____________________________________________________________________________ +AliTRDtracker::AliTRDtracker() + :AliTracker() + ,fHBackfit(0x0) + ,fHClSearch(0x0) + ,fHRefit(0x0) + ,fHX(0x0) + ,fHNCl(0x0) + ,fHNClTrack(0x0) + ,fHMinYPos(0x0) + ,fHMinYNeg(0x0) + ,fHMinZ(0x0) + ,fHMinD(0x0) + ,fHDeltaX(0x0) + ,fHXCl(0x0) + ,fGeom(0) + ,fNclusters(0) + ,fClusters(0) + ,fNseeds(0) + ,fSeeds(0) + ,fNtracks(0) + ,fTracks(0) + ,fTimeBinsPerPlane(0) + ,fAddTRDseeds(kFALSE) + ,fNoTilt(kFALSE) + ,fDebugStreamer(0) +{ + // + // Default constructor + // + for (Int_t i = 0; i < kTrackingSectors; i++) { + fTrSec[i] = 0; + } + InitLogHists(); +} -//____________________________________________________________________ -AliTRDtracker::AliTRDtracker():AliTracker(), - fGeom(0), - fNclusters(0), - fClusters(0), - fNseeds(0), - fSeeds(0), - fNtracks(0), - fTracks(0), - fTimeBinsPerPlane(0), - fAddTRDseeds(kFALSE), - fNoTilt(kFALSE) +//_____________________________________________________________________________ +AliTRDtracker::AliTRDtracker(const AliTRDtracker &t) + :AliTracker(t) + ,fHBackfit(0x0) + ,fHClSearch(0x0) + ,fHRefit(0x0) + ,fHX(0x0) + ,fHNCl(0x0) + ,fHNClTrack(0x0) + ,fHMinYPos(0x0) + ,fHMinYNeg(0x0) + ,fHMinZ(0x0) + ,fHMinD(0x0) + ,fHDeltaX(0x0) + ,fHXCl(0x0) + ,fGeom(0) + ,fNclusters(0) + ,fClusters(0) + ,fNseeds(0) + ,fSeeds(0) + ,fNtracks(0) + ,fTracks(0) + ,fTimeBinsPerPlane(0) + ,fAddTRDseeds(kFALSE) + ,fNoTilt(kFALSE) + ,fDebugStreamer(0) { - // Default constructor + // + // Copy constructor + // - for(Int_t i=0;iIsOpen()) { - printf("AliTRDtracker::AliTRDtracker(): geometry file is not open!\n"); - printf(" FULL TRD geometry and DEFAULT TRD parameter will be used\n"); - } - else { - in->cd(); - fGeom = (AliTRDgeometry*) in->Get("TRDgeometry"); - } - - if(fGeom) { - // printf("Found geometry version %d on file \n", fGeom->IsVersion()); - } - else { - printf("AliTRDtracker::AliTRDtracker(): can't find TRD geometry!\n"); - fGeom = new AliTRDgeometryFull(); - fGeom->SetPHOShole(); - fGeom->SetRICHhole(); - } + TDirectory *savedir = gDirectory; - savedir->cd(); + fGeom = new AliTRDgeometry(); - - fNclusters = 0; - fClusters = new TObjArray(2000); - fNseeds = 0; - fSeeds = new TObjArray(2000); - fNtracks = 0; - fTracks = new TObjArray(1000); - - for(Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { - Int_t trS = CookSectorIndex(geomS); - fTrSec[trS] = new AliTRDtrackingSector(fGeom, geomS); - for (Int_t icham=0;ichamIsHole(0,icham,geomS); - } + for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { + Int_t trS = geomS; + fTrSec[trS] = new AliTRDtrackingSector(fGeom,geomS); } - AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0); + + AliTRDpadPlane *padPlane = fGeom->GetPadPlane(0,0); Float_t tiltAngle = TMath::Abs(padPlane->GetTiltingAngle()); - if(tiltAngle < 0.1) { + if (tiltAngle < 0.1) { fNoTilt = kTRUE; } - fTimeBinsPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); + if (!AliTRDcalibDB::Instance()) { + AliFatal("Could not get calibration object"); + } + fTimeBinsPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); - fDebugStreamer = new TTreeSRedirector("TRDdebug.root"); + fDebugStreamer = new TTreeSRedirector("TRDdebug.root"); savedir->cd(); + + InitLogHists(); + } -//___________________________________________________________________ +//_____________________________________________________________________________ AliTRDtracker::~AliTRDtracker() { // @@ -157,188 +203,205 @@ AliTRDtracker::~AliTRDtracker() fClusters->Delete(); delete fClusters; } + if (fTracks) { fTracks->Delete(); delete fTracks; } + if (fSeeds) { fSeeds->Delete(); delete fSeeds; } - delete fGeom; - for(Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { + if (fGeom) { + delete fGeom; + } + + for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { delete fTrSec[geomS]; } + if (fDebugStreamer) { - //fDebugStreamer->Close(); delete fDebugStreamer; } -} - -//_____________________________________________________________________ +} -Int_t AliTRDtracker::LocalToGlobalID(Int_t lid){ - // - // transform internal TRD ID to global detector ID +//_____________________________________________________________________________ +Int_t AliTRDtracker::LocalToGlobalID(Int_t lid) +{ // - Int_t isector = fGeom->GetSector(lid); - Int_t ichamber= fGeom->GetChamber(lid); - Int_t iplan = fGeom->GetPlane(lid); + // Transform internal TRD ID to global detector ID // - AliAlignObj::ELayerID iLayer = AliAlignObj::kTRD1; + + Int_t isector = fGeom->GetSector(lid); + Int_t ichamber = fGeom->GetChamber(lid); + Int_t iplan = fGeom->GetPlane(lid); + + AliGeomManager::ELayerID iLayer = AliGeomManager::kTRD1; switch (iplan) { case 0: - iLayer = AliAlignObj::kTRD1; + iLayer = AliGeomManager::kTRD1; break; case 1: - iLayer = AliAlignObj::kTRD2; + iLayer = AliGeomManager::kTRD2; break; case 2: - iLayer = AliAlignObj::kTRD3; + iLayer = AliGeomManager::kTRD3; break; case 3: - iLayer = AliAlignObj::kTRD4; + iLayer = AliGeomManager::kTRD4; break; case 4: - iLayer = AliAlignObj::kTRD5; + iLayer = AliGeomManager::kTRD5; break; case 5: - iLayer = AliAlignObj::kTRD6; + iLayer = AliGeomManager::kTRD6; break; }; - Int_t modId = isector*fGeom->Ncham()+ichamber; - UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId); + + Int_t modId = isector * fGeom->Ncham() + ichamber; + UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,modId); + return volid; + } -Int_t AliTRDtracker::GlobalToLocalID(Int_t gid){ +//_____________________________________________________________________________ +Int_t AliTRDtracker::GlobalToLocalID(Int_t gid) +{ // - // transform global detector ID to local detector ID + // Transform global detector ID to local detector ID // - Int_t modId=0; - AliAlignObj::ELayerID layerId = AliAlignObj::VolUIDToLayer(gid, modId); - Int_t isector = modId/fGeom->Ncham(); - Int_t ichamber = modId%fGeom->Ncham(); - Int_t iLayer = -1; + + Int_t modId = 0; + AliGeomManager::ELayerID layerId = AliGeomManager::VolUIDToLayer(gid,modId); + + Int_t isector = modId / fGeom->Ncham(); + Int_t ichamber = modId % fGeom->Ncham(); + Int_t iLayer = -1; + switch (layerId) { - case AliAlignObj::kTRD1: + case AliGeomManager::kTRD1: iLayer = 0; break; - case AliAlignObj::kTRD2: + case AliGeomManager::kTRD2: iLayer = 1; break; - case AliAlignObj::kTRD3: + case AliGeomManager::kTRD3: iLayer = 2; break; - case AliAlignObj::kTRD4: + case AliGeomManager::kTRD4: iLayer = 3; break; - case AliAlignObj::kTRD5: + case AliGeomManager::kTRD5: iLayer = 4; break; - case AliAlignObj::kTRD6: + case AliGeomManager::kTRD6: iLayer = 5; break; default: iLayer =-1; } - if (iLayer<0) return -1; + + if (iLayer < 0) { + return -1; + } + Int_t lid = fGeom->GetDetector(iLayer,ichamber,isector); - return lid; -} + return lid; -Bool_t AliTRDtracker::Transform(AliTRDcluster * cluster){ - // - // - const Double_t kDriftCorrection = 1.01; // drift coeficient correction - const Double_t kExBcor = 0.001; // ExB coef correction - const Double_t kTime0Cor = 0.32; // time0 correction - // - // apply alignment and calibration to transform cluster - // - // - Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region - Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.); // drift distance - // - Int_t plane = fGeom->GetPlane(cluster->GetDetector()); - Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); - cluster->SetX(xplane- kDriftCorrection*(cluster->GetX()-kTime0Cor)); - // - // ExB correction - // - Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); - Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift); - // - cluster->SetY(cluster->GetY() - driftX*(exB+ kExBcor)); - return kTRUE; } -Bool_t AliTRDtracker::AdjustSector(AliTRDtrack *track) { +//_____________________________________________________________________________ +Bool_t AliTRDtracker::AdjustSector(AliTRDtrack *track) +{ // // Rotates the track when necessary // Double_t alpha = AliTRDgeometry::GetAlpha(); - Double_t y = track->GetY(); - Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha); - - //Int_t ns = AliTRDgeometry::kNsect; - //Int_t s=Int_t(track->GetAlpha()/alpha)%ns; - - if (y > ymax) { - //s = (s+1) % ns; - if (!track->Rotate(alpha)) return kFALSE; - } else if (y <-ymax) { - //s = (s-1+ns) % ns; - if (!track->Rotate(-alpha)) return kFALSE; + Double_t y = track->GetY(); + Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha); + + if (y > ymax) { + if (!track->Rotate( alpha)) { + return kFALSE; + } + } + else if (y < -ymax) { + if (!track->Rotate(-alpha)) { + return kFALSE; + } } return kTRUE; -} +} -AliTRDcluster * AliTRDtracker::GetCluster(AliTRDtrack * track, Int_t plane, Int_t timebin, UInt_t &index){ +//_____________________________________________________________________________ +AliTRDcluster *AliTRDtracker::GetCluster(AliTRDtrack *track, Int_t plane + , Int_t timebin, UInt_t &index) +{ // - //try to find cluster in the backup list + // Try to find cluster in the backup list // - AliTRDcluster * cl =0; - UInt_t *indexes = track->GetBackupIndexes(); - for (UInt_t i=0;iUncheckedAt(indexes[i]); - if (!cli) break; - if (cli->GetLocalTimeBin()!=timebin) continue; + + AliTRDcluster *cl =0; + Int_t *indexes = track->GetBackupIndexes(); + + for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { + if (indexes[i] == 0) { + break; + } + AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); + if (!cli) { + break; + } + if (cli->GetLocalTimeBin() != timebin) { + continue; + } Int_t iplane = fGeom->GetPlane(cli->GetDetector()); - if (iplane==plane) { - cl = cli; + if (iplane == plane) { + cl = cli; index = indexes[i]; break; } } + return cl; -} +} -Int_t AliTRDtracker::GetLastPlane(AliTRDtrack * track){ +//_____________________________________________________________________________ +Int_t AliTRDtracker::GetLastPlane(AliTRDtrack *track) +{ + // + // Return last updated plane // - //return last updated plane - Int_t lastplane=0; - UInt_t *indexes = track->GetBackupIndexes(); - for (UInt_t i=0;iUncheckedAt(indexes[i]); - if (!cli) break; + + Int_t lastplane = 0; + Int_t *indexes = track->GetBackupIndexes(); + + for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { + AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); + if (!cli) { + break; + } Int_t iplane = fGeom->GetPlane(cli->GetDetector()); - if (iplane>lastplane) { + if (iplane > lastplane) { lastplane = iplane; } } + return lastplane; + } -//___________________________________________________________________ -Int_t AliTRDtracker::Clusters2Tracks(AliESD* event) + +//_____________________________________________________________________________ +Int_t AliTRDtracker::Clusters2Tracks(AliESDEvent *event) { // // Finds tracks within the TRD. The ESD event is expected to contain seeds @@ -348,57 +411,57 @@ Int_t AliTRDtracker::Clusters2Tracks(AliESD* event) // of the TRD and the ESD event is updated // - Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); + Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); Float_t foundMin = fgkMinClustersInTrack * timeBins; - Int_t nseed = 0; - Int_t found = 0; - // Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); + Int_t nseed = 0; + Int_t found = 0; + //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); Int_t n = event->GetNumberOfTracks(); - for (Int_t i=0; iGetTrack(i); - ULong_t status=seed->GetStatus(); - if ( (status & AliESDtrack::kTRDout ) == 0 ) continue; - if ( (status & AliESDtrack::kTRDin) != 0 ) continue; + for (Int_t i = 0; i < n; i++) { + + AliESDtrack *seed = event->GetTrack(i); + ULong_t status = seed->GetStatus(); + if ((status & AliESDtrack::kTRDout) == 0) { + continue; + } + if ((status & AliESDtrack::kTRDin) != 0) { + continue; + } nseed++; - AliTRDtrack* seed2 = new AliTRDtrack(*seed); + AliTRDtrack *seed2 = new AliTRDtrack(*seed); //seed2->ResetCovariance(); - AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha()); - AliTRDtrack &t=*pt; + AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha()); + AliTRDtrack &t = *pt; FollowProlongation(t); if (t.GetNumberOfClusters() >= foundMin) { UseClusters(&t); - CookLabel(pt, 1-fgkLabelFraction); - // t.CookdEdx(); + CookLabel(pt,1 - fgkLabelFraction); + //t.CookdEdx(); } found++; -// cout<UpdateTrackParams(pt, AliESDtrack::kTRDin); } delete seed2; delete pt; - } - cout<<"Number of loaded seeds: "<GetNumberOfTracks(); - // - //Sort tracks - Float_t *quality =new Float_t[n]; - Int_t *index =new Int_t[n]; - for (Int_t i=0; iGetTrack(i); + Int_t found = 0; // number of tracks found + Float_t foundMin = 20.0; + + // Sort tracks according to covariance of local Y and Z + Int_t nSeed = event->GetNumberOfTracks(); + Float_t *quality = new Float_t[nSeed]; + Int_t *index = new Int_t[nSeed]; + for (Int_t iSeed = 0; iSeed < nSeed; iSeed++) { + AliESDtrack *seed = event->GetTrack(iSeed); Double_t covariance[15]; seed->GetExternalCovariance(covariance); - quality[i] = covariance[0]+covariance[2]; + quality[iSeed] = covariance[0] + covariance[2]; } - TMath::Sort(n,quality,index,kFALSE); - // - for (Int_t i=0; iGetTrack(i); - AliESDtrack* seed=event->GetTrack(index[i]); + TMath::Sort(nSeed,quality,index,kFALSE); + + // Backpropagate all seeds + for (Int_t iSeed = 0; iSeed < nSeed; iSeed++) { + + // Get the seeds in sorted sequence + AliESDtrack *seed = event->GetTrack(index[iSeed]); + fHBackfit->Fill(0); // All seeds - ULong_t status=seed->GetStatus(); - if ( (status & AliESDtrack::kTPCout ) == 0 ) continue; - if ( (status & AliESDtrack::kTRDout) != 0 ) continue; + // Check the seed status + ULong_t status = seed->GetStatus(); + if ((status & AliESDtrack::kTPCout) == 0) { + fHBackfit->Fill(1); // TPC outer edge reached + continue; + } + if ((status & AliESDtrack::kTRDout) != 0) { + fHBackfit->Fill(2); // TRD outer edge reached (does this happen ?) + continue; + } - Int_t lbl = seed->GetLabel(); - AliTRDtrack *track = new AliTRDtrack(*seed); + // Do the back prolongation + Int_t lbl = seed->GetLabel(); + AliTRDtrack *track = new AliTRDtrack(*seed); track->SetSeedLabel(lbl); - seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); //make backup + seed->UpdateTrackParams(track,AliESDtrack::kTRDbackup); // Make backup fNseeds++; - Float_t p4 = track->GetC(); - // - Int_t expectedClr = FollowBackProlongation(*track); - if (TMath::Abs(track->GetC()-p4)/TMath::Abs(p4)<0.2 || TMath::Abs(track->GetPt())>0.8 ) { + Float_t p4 = track->GetC(); + Int_t expectedClr = FollowBackProlongation(*track); + fHBackfit->Fill(3); // Back prolongation done + fHX->Fill(track->GetX()); + // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! + + if ((TMath::Abs(track->GetC() - p4) / TMath::Abs(p4) < 0.2) || + (track->Pt() > 0.8)) { + + fHBackfit->Fill(4); + // - //make backup for back propagation + // Make backup for back propagation // + Int_t foundClr = track->GetNumberOfClusters(); if (foundClr >= foundMin) { track->CookdEdx(); - CookdEdxTimBin(*track); - CookLabel(track, 1-fgkLabelFraction); - if (track->GetBackupTrack()) UseClusters(track->GetBackupTrack()); - if(track->GetChi2()/track->GetNumberOfClusters()<4) { // sign only gold tracks - if (seed->GetKinkIndex(0)==0&&TMath::Abs(track->GetPt())<1.5 ) UseClusters(track); + track->CookdEdxTimBin(seed->GetID()); // A.Bercuci 25.07.07 + CookLabel(track,1 - fgkLabelFraction); + if (track->GetBackupTrack()) { + UseClusters(track->GetBackupTrack()); + } + + // Sign only gold tracks + if (track->GetChi2() / track->GetNumberOfClusters() < 4) { + if ((seed->GetKinkIndex(0) == 0) && + (track->Pt() < 1.5)) { + UseClusters(track); + } } Bool_t isGold = kFALSE; - if (track->GetChi2()/track->GetNumberOfClusters()<5) { //full gold track - // seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); - if (track->GetBackupTrack()) seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); + // Full gold track + if (track->GetChi2() / track->GetNumberOfClusters() < 5) { + //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); + if (track->GetBackupTrack()) { + seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); + + } isGold = kTRUE; + //fHBackfit->Fill() } - if (!isGold && track->GetNCross()==0&&track->GetChi2()/track->GetNumberOfClusters()<7){ //almost gold track - // seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); - if (track->GetBackupTrack()) seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); + + // Almost gold track + if ((!isGold) && + (track->GetNCross() == 0) && + (track->GetChi2() / track->GetNumberOfClusters() < 7)) { + //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); + if (track->GetBackupTrack()) { + seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); + } isGold = kTRUE; } - if (!isGold && track->GetBackupTrack()){ - if (track->GetBackupTrack()->GetNumberOfClusters()>foundMin&& - (track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1))<7){ - seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); + + if ((!isGold) && + (track->GetBackupTrack())) { + if ((track->GetBackupTrack()->GetNumberOfClusters() > foundMin) && + ((track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1)) < 7)) { + seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); isGold = kTRUE; } } - if (track->StatusForTOF()>0 &&track->fNCross==0 && Float_t(track->fN)/Float_t(track->fNExpected)>0.4){ + + if ((track->StatusForTOF() > 0) && + (track->GetNCross() == 0) && + (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) { //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); } + } } + /**/ + + /**/ // Debug part of tracking - TTreeSRedirector& cstream = *fDebugStreamer; - Int_t eventNr = event->GetEventNumber(); - if (track->GetBackupTrack()){ - cstream<<"Tracks"<< - "EventNr="<GetEventNumberInFile(); // This is most likely NOT the event number you'd like to use. It has nothing to do with the 'real' event number. + if (AliTRDReconstructor::StreamLevel() > 0) { + if (track->GetBackupTrack()) { + cstream << "Tracks" + << "EventNrInFile=" << eventNrInFile + << "ESD.=" << seed + << "trd.=" << track + << "trdback.=" << track->GetBackupTrack() + << "\n"; + } + else { + cstream << "Tracks" + << "EventNrInFile=" << eventNrInFile + << "ESD.=" << seed + << "trd.=" << track + << "trdback.=" << track + << "\n"; + } } - // - //Propagation to the TOF (I.Belikov) - if (track->GetStop()==kFALSE){ - - Double_t xtof=371.; - Double_t c2=track->GetC()*xtof - track->GetEta(); - if (TMath::Abs(c2)>=0.99) { + /**/ + + // Propagation to the TOF (I.Belikov) + if (track->GetStop() == kFALSE) { + fHBackfit->Fill(5); + + Double_t xtof = 371.0; + Double_t xTOF0 = 370.0; + + Double_t c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); + if (TMath::Abs(c2) >= 0.99) { + + fHBackfit->Fill(6); delete track; continue; } - Double_t xTOF0 = 370. ; + PropagateToX(*track,xTOF0,fgkMaxStep); - // - //energy losses taken to the account - check one more time - c2=track->GetC()*xtof - track->GetEta(); - if (TMath::Abs(c2)>=0.99) { + + // Energy losses taken to the account - check one more time + c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); + if (TMath::Abs(c2) >= 0.99) { + + fHBackfit->Fill(7); delete track; continue; } - - // - Double_t ymax=xtof*TMath::Tan(0.5*AliTRDgeometry::GetAlpha()); - Double_t y=track->GetYat(xtof); - if (y > ymax) { - if (!track->Rotate(AliTRDgeometry::GetAlpha())) { + + //if (!PropagateToX(*track,xTOF0,fgkMaxStep)) { + // fHBackfit->Fill(7); + //delete track; + // continue; + //} + + Double_t ymax = xtof * TMath::Tan(0.5 * AliTRDgeometry::GetAlpha()); + Double_t y; + track->GetYAt(xtof,GetBz(),y); + if (y > ymax) { + if (!track->Rotate( AliTRDgeometry::GetAlpha())) { + fHBackfit->Fill(8); delete track; continue; } - } else if (y <-ymax) { + } + else if (y < -ymax) { if (!track->Rotate(-AliTRDgeometry::GetAlpha())) { + fHBackfit->Fill(9); delete track; continue; } } - + if (track->PropagateTo(xtof)) { - seed->UpdateTrackParams(track, AliESDtrack::kTRDout); - for (Int_t i=0;iSetTRDsignals(track->GetPIDsignals(i),i); - seed->SetTRDTimBin(track->GetPIDTimBin(i),i); + seed->UpdateTrackParams(track,AliESDtrack::kTRDout); + fHBackfit->Fill(10); + + for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { + for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { + seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j); + } + seed->SetTRDTimBin(track->GetPIDTimBin(i),i); } - // seed->SetTRDtrack(new AliTRDtrack(*track)); - if (track->GetNumberOfClusters()>foundMin) found++; + //seed->SetTRDtrack(new AliTRDtrack(*track)); + if (track->GetNumberOfClusters() > foundMin) { + fHBackfit->Fill(11); + found++; + } } - }else{ - if (track->GetNumberOfClusters()>15&&track->GetNumberOfClusters()>0.5*expectedClr){ - seed->UpdateTrackParams(track, AliESDtrack::kTRDout); + + } + else { + + fHBackfit->Fill(12); + + if ((track->GetNumberOfClusters() > 15) && + (track->GetNumberOfClusters() > 0.5*expectedClr)) { + + seed->UpdateTrackParams(track,AliESDtrack::kTRDout); + fHBackfit->Fill(13); + //seed->SetStatus(AliESDtrack::kTRDStop); - for (Int_t i=0;iSetTRDsignals(track->GetPIDsignals(i),i); - seed->SetTRDTimBin(track->GetPIDTimBin(i),i); + for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { + for (Int_t j = 0; j SetTRDsignals(track->GetPIDsignals(i,j),i,j); + } + seed->SetTRDTimBin(track->GetPIDTimBin(i),i); } //seed->SetTRDtrack(new AliTRDtrack(*track)); found++; } + } + seed->SetTRDQuality(track->StatusForTOF()); - seed->SetTRDBudget(track->fBudget[0]); + seed->SetTRDBudget(track->GetBudget(0)); + fHBackfit->Fill(14); delete track; - // - //End of propagation to the TOF - //if (foundClr>foundMin) - // seed->UpdateTrackParams(track, AliESDtrack::kTRDout); - - } + + AliInfo(Form("Number of seeds: %d",fNseeds)); + AliInfo(Form("Number of back propagated TRD tracks: %d",found)); - cerr<<"Number of seeds: "<Clear(); + fNseeds = 0; - fSeeds->Clear(); fNseeds=0; delete [] index; delete [] quality; + SaveLogHists(); + return 0; } //_____________________________________________________________________________ -Int_t AliTRDtracker::RefitInward(AliESD* event) +Int_t AliTRDtracker::RefitInward(AliESDEvent *event) { // // Refits tracks within the TRD. The ESD event is expected to contain seeds @@ -586,395 +737,598 @@ Int_t AliTRDtracker::RefitInward(AliESD* event) // Origin: Thomas KUHR (Thomas.Kuhr@cern.ch) // - Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); - Float_t foundMin = fgkMinClustersInTrack * timeBins; - Int_t nseed = 0; - Int_t found = 0; - // Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); + //Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); + //Float_t foundMin = fgkMinClustersInTrack * timeBins; + Int_t nseed = 0; + Int_t found = 0; + Int_t pidQ = 0; + //Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); AliTRDtrack seed2; - + Int_t n = event->GetNumberOfTracks(); - for (Int_t i=0; iGetTrack(i); - new(&seed2) AliTRDtrack(*seed); - if (seed2.GetX()<270){ - seed->UpdateTrackParams(&seed2, AliESDtrack::kTRDbackup); // backup TPC track - only update + for (Int_t i = 0; i < n; i++) { + + AliESDtrack *seed = event->GetTrack(i); + new (&seed2) AliTRDtrack(*seed); + fHRefit->Fill(0); + + if (seed2.GetX() < 270.0) { + seed->UpdateTrackParams(&seed2,AliESDtrack::kTRDbackup); // Backup TPC track - only update + fHRefit->Fill(1); continue; } - ULong_t status=seed->GetStatus(); - if ( (status & AliESDtrack::kTRDout ) == 0 ) { + ULong_t status = seed->GetStatus(); + if ((status & AliESDtrack::kTRDout) == 0) { + fHRefit->Fill(2); continue; } - if ( (status & AliESDtrack::kTRDin) != 0 ) { + if ((status & AliESDtrack::kTRDin) != 0) { + fHRefit->Fill(3); continue; } - nseed++; -// if (1/seed2.Get1Pt()>1.5&& seed2.GetX()>260.) { -// Double_t oldx = seed2.GetX(); -// seed2.PropagateTo(500.); -// seed2.ResetCovariance(1.); -// seed2.PropagateTo(oldx); -// } -// else{ -// seed2.ResetCovariance(5.); -// } + + nseed++; + fHRefit->Fill(4); + + seed2.ResetCovariance(50.0); AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha()); - UInt_t * indexes2 = seed2.GetIndexes(); - for (Int_t i=0;iSetPIDsignals(seed2.GetPIDsignals(i),i); + Int_t *indexes2 = seed2.GetIndexes(); + for (Int_t i = 0; i < AliESDtrack::kNPlane;i++) { + for (Int_t j = 0; j < AliESDtrack::kNSlice;j++) { + pt->SetPIDsignals(seed2.GetPIDsignals(i,j),i,j); + } pt->SetPIDTimBin(seed2.GetPIDTimBin(i),i); } - UInt_t * indexes3 = pt->GetBackupIndexes(); - for (Int_t i=0;i<200;i++) { - if (indexes2[i]==0) break; + Int_t *indexes3 = pt->GetBackupIndexes(); + for (Int_t i = 0; i < 200;i++) { + if (indexes2[i] == 0) { + break; + } indexes3[i] = indexes2[i]; - } - //AliTRDtrack *pt = seed2; - AliTRDtrack &t=*pt; - FollowProlongation(t); - if (t.GetNumberOfClusters() >= foundMin) { - // UseClusters(&t); - //CookLabel(pt, 1-fgkLabelFraction); - t.CookdEdx(); - CookdEdxTimBin(t); - } + } + + FollowProlongation(*pt); + pt->CookdEdx(); + pt->CookdEdxTimBin(seed->GetID()); + pt->SetPIDMethod(AliTRDtrack::kLQ); //switch between TRD PID methods + pt->CookPID(pidQ); found++; -// cout<UpdateTrackParams(pt, AliESDtrack::kTRDrefit); - for (Int_t i=0;iSetTRDsignals(pt->GetPIDsignals(i),i); + + Double_t xTPC = 250.0; + if (PropagateToX(*pt,xTPC,fgkMaxStep)) { + + seed->UpdateTrackParams(pt,AliESDtrack::kTRDrefit); + fHRefit->Fill(5); + + for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { + for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { + seed->SetTRDsignals(pt->GetPIDsignals(i,j),i,j); + } seed->SetTRDTimBin(pt->GetPIDTimBin(i),i); } - }else{ - //if not prolongation to TPC - propagate without update - AliTRDtrack* seed2 = new AliTRDtrack(*seed); - seed2->ResetCovariance(5.); - AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); + + } + else { + + // If not prolongation to TPC - propagate without update + fHRefit->Fill(5); + AliTRDtrack *seed2 = new AliTRDtrack(*seed); + seed2->ResetCovariance(5.0); + AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); delete seed2; + if (PropagateToX(*pt2,xTPC,fgkMaxStep)) { - //pt2->CookdEdx(0.,1.); - pt2->CookdEdx( ); // Modification by PS - CookdEdxTimBin(*pt2); - seed->UpdateTrackParams(pt2, AliESDtrack::kTRDrefit); - for (Int_t i=0;iSetTRDsignals(pt2->GetPIDsignals(i),i); + + pt2->CookdEdx(); + pt2->CookdEdxTimBin(seed->GetID()); + seed->UpdateTrackParams(pt2,AliESDtrack::kTRDrefit); + fHRefit->Fill(6); + + for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) { + for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) { + seed->SetTRDsignals(pt2->GetPIDsignals(i,j),i,j); + } seed->SetTRDTimBin(pt2->GetPIDTimBin(i),i); } + + } + + // Add TRD track to ESDfriendTrack - maybe this tracks are + // not useful for post-processing - TODO make decision + if (AliTRDReconstructor::StreamLevel() > 0) { + seed->AddCalibObject(new AliTRDtrack(*pt2/*, kTRUE*/)); } delete pt2; - } - delete pt; - } - cout<<"Number of loaded seeds: "< 0) { + seed->AddCalibObject(new AliTRDtrack(*pt/*, kTRUE*/)); + } + delete pt; -} + } + AliInfo(Form("Number of loaded seeds: %d",nseed)); + AliInfo(Form("Number of found tracks from loaded seeds: %d",found)); + SaveLogHists(); + return 0; +} -//--------------------------------------------------------------------------- -Int_t AliTRDtracker::FollowProlongation(AliTRDtrack& t) +//_____________________________________________________________________________ +Int_t AliTRDtracker::FollowProlongation(AliTRDtrack &t) { + // // Starting from current position on track=t this function tries // to extrapolate the track up to timeBin=0 and to confirm prolongation // if a close cluster is found. Returns the number of clusters // expected to be found in sensitive layers // GeoManager used to estimate mean density - Int_t sector; - Int_t lastplane = GetLastPlane(&t); - Double_t radLength = 0.0; - Double_t rho = 0.0; - Int_t expectedNumberOfClusters = 0; - // // - // - for (Int_t iplane = lastplane; iplane>=0; iplane--){ - // - Int_t row0 = GetGlobalTimeBin(0, iplane,GetTimeBinsPerPlane()-1); - Int_t rowlast = GetGlobalTimeBin(0, iplane,0); - // - // propagate track close to the plane if neccessary - // + + Int_t sector; + Int_t lastplane = GetLastPlane(&t); + Double_t xx0 = 0.0; + Double_t xrho= 0.0; + Int_t expectedNumberOfClusters = 0; + + for (Int_t iplane = lastplane; iplane >= 0; iplane--) { + + Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); + Int_t rowlast = GetGlobalTimeBin(0,iplane,0); + + // Propagate track close to the plane if neccessary Double_t currentx = fTrSec[0]->GetLayer(rowlast)->GetX(); - if (currentx < -fgkMaxStep +t.GetX()){ - //propagate closer to chamber - safety space fgkMaxStep - if (!PropagateToX(t, currentx+fgkMaxStep, fgkMaxStep)) break; + if (currentx < (-fgkMaxStep + t.GetX())) { + // Propagate closer to chamber - safety space fgkMaxStep + if (!PropagateToX(t,currentx+fgkMaxStep,fgkMaxStep)) { + break; + } } - if (!AdjustSector(&t)) break; - // - // get material budget - // - Double_t xyz0[3],xyz1[3],param[7],x,y,z; - t.GetGlobalXYZ(xyz0[0],xyz0[1],xyz0[2]); //starting global position - // end global position + + if (!AdjustSector(&t)) { + break; + } + + // Get material budget + Double_t xyz0[3]; + Double_t xyz1[3]; + Double_t param[7]; + Double_t x; + Double_t y; + Double_t z; + + // Starting global position + t.GetXYZ(xyz0); + // End global position x = fTrSec[0]->GetLayer(row0)->GetX(); - if (!t.GetProlongation(x,y,z)) break; - xyz1[0] = x*TMath::Cos(t.GetAlpha())-y*TMath::Sin(t.GetAlpha()); - xyz1[1] = +x*TMath::Sin(t.GetAlpha())+y*TMath::Cos(t.GetAlpha()); - xyz1[2] = z; - AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); - rho = param[0]; - radLength = param[1]; // get mean propagation parameters - // - // propagate nad update - // + if (!t.GetProlongation(x,y,z)) { + break; + } + xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); + xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); + xyz1[2] = z; + AliTracker::MeanMaterialBudget(xyz0,xyz1,param); + xrho= param[0]*param[4]; + xx0 = param[1]; // Get mean propagation parameters + + // Flags for marking the track momentum and direction. The track is + // marked only if it has at least 1 cluster picked up in the current + // chamber. + Bool_t kUPDATED = kFALSE; + Bool_t kMARKED = kFALSE; + + // Propagate and update sector = t.GetSector(); - // for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) { - for (Int_t itime=0 ;itime345) t.fNExpectedLast++; - AliTRDpropagationLayer& timeBin=*(fTrSec[sector]->GetLayer(ilayer)); - AliTRDcluster *cl=0; - UInt_t index=0; - Double_t maxChi2=fgkMaxChi2; + //for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) { + for (Int_t itime = 0 ; itime < GetTimeBinsPerPlane(); itime++) { + + // Mark track kinematics + if (itime > 10 && kUPDATED && !kMARKED) { + t.SetTrackSegmentDirMom(iplane); + kMARKED = kTRUE; + } + + Int_t ilayer = GetGlobalTimeBin(0,iplane,itime); + expectedNumberOfClusters++; + t.SetNExpected(t.GetNExpected() + 1); + if (t.GetX() > 345.0) { + t.SetNExpectedLast(t.GetNExpectedLast() + 1); + } + AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); + AliTRDcluster *cl = 0; + UInt_t index = 0; + Double_t maxChi2 = fgkMaxChi2; x = timeBin.GetX(); + if (timeBin) { - AliTRDcluster * cl0 = timeBin[0]; - if (!cl0) continue; // no clusters in given time bin - Int_t plane = fGeom->GetPlane(cl0->GetDetector()); - if (plane>lastplane) continue; + + AliTRDcluster *cl0 = timeBin[0]; + if (!cl0) { + // No clusters in given time bin + continue; + } + + Int_t plane = fGeom->GetPlane(cl0->GetDetector()); + if (plane > lastplane) { + continue; + } + Int_t timebin = cl0->GetLocalTimeBin(); - AliTRDcluster * cl2= GetCluster(&t,plane, timebin,index); - // + AliTRDcluster *cl2 = GetCluster(&t,plane,timebin,index); + if (cl2) { - cl =cl2; - Double_t h01 = GetTiltFactor(cl); - maxChi2=t.GetPredictedChi2(cl,h01); - } - if (cl) { - // if (cl->GetNPads()<5) + cl = cl2; + //Double_t h01 = GetTiltFactor(cl); //I.B's fix + //maxChi2=t.GetPredictedChi2(cl,h01); + } + + if (cl) { + + //if (cl->GetNPads()<5) Double_t dxsample = timeBin.GetdX(); - t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); - Double_t h01 = GetTiltFactor(cl); - Int_t det = cl->GetDetector(); - Int_t plane = fGeom->GetPlane(det); - if (t.fX>345){ - t.fNLast++; - t.fChi2Last+=maxChi2; + t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); + Double_t h01 = GetTiltFactor(cl); + Int_t det = cl->GetDetector(); + Int_t plane = fGeom->GetPlane(det); + + if (t.GetX() > 345.0) { + t.SetNLast(t.GetNLast() + 1); + t.SetChi2Last(t.GetChi2Last() + maxChi2); } + Double_t xcluster = cl->GetX(); - t.PropagateTo(xcluster,radLength,rho); - if(!t.UpdateMI(cl,maxChi2,index,h01,plane)) { + t.PropagateTo(xcluster,xx0,xrho); + if (!AdjustSector(&t)) { + break; //I.B's fix + } + + maxChi2 = t.GetPredictedChi2(cl,h01); + if (maxChi2 < 1e+10) { + if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { + // ???? + } + else { + //SetCluster(cl, GetNumberOfClusters()-1); + kUPDATED = kTRUE; + } } - } + + } + } - } - } - return expectedNumberOfClusters; -} + } + } + return expectedNumberOfClusters; +} -//___________________________________________________________________ -Int_t AliTRDtracker::FollowBackProlongation(AliTRDtrack& t) +//_____________________________________________________________________________ +Int_t AliTRDtracker::FollowBackProlongation(AliTRDtrack &t) { - + // // Starting from current radial position of track this function - // extrapolates the track up to outer timebin and in the sensitive + // extrapolates the track up to the outer timebin and in the sensitive // layers confirms prolongation if a close cluster is found. // Returns the number of clusters expected to be found in sensitive layers - // Use GEO manager for material Description - - Int_t sector; - Int_t clusters[1000]; - for (Int_t i=0;i<1000;i++) clusters[i]=-1; - Double_t radLength = 0.0; - Double_t rho = 0.0; - Int_t expectedNumberOfClusters = 0; - Float_t ratio0=0; - AliTRDtracklet tracklet; + // Uses the geomanager for material description // + // return number of assigned clusters ? // - for (Int_t iplane = 0; iplaneGetLayer(row0)->GetX(); - if (currentx fgkMaxStep +t.GetX()){ - if (!PropagateToX(t, currentx-fgkMaxStep, fgkMaxStep)) break; + + Int_t sector; + + Double_t xx0 = 0.0; + Double_t xrho = 0.0; + + Float_t ratio0 = 0.0; + + Int_t expectedNumberOfClusters = 0; + + AliTRDtracklet tracklet; + + const Int_t kNclusters = 1000; + Int_t clusters[kNclusters]; + for (Int_t i = 0; i < kNclusters; i++) { + clusters[i] = -1; + } + + // Calibration fill 2D + AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance(); + if (!calibra) { + AliInfo("Could not get Calibra instance\n"); + } + if (calibra->GetMITracking()) { + calibra->ResetTrack(); + } + + // Loop through the TRD planes + for (Int_t iplane = 0; iplane < AliESDtrack::kNPlane; iplane++) { + + Int_t hb = iplane * 10; + fHClSearch->Fill(hb); + + // Get the global time bin numbers for the first an last + // local time bin of the given plane + Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); + Int_t rowlast = GetGlobalTimeBin(0,iplane,0); + + // Get the X coordinates of the propagation layer for the first time bin + Double_t currentx = fTrSec[0]->GetLayer(row0)->GetX(); + if (currentx < t.GetX()) { + fHClSearch->Fill(hb+1); + continue; } - if (!AdjustSector(&t)) break; - if (TMath::Abs(t.GetSnp())>fgkMaxSnp) break; - // - // get material budget inside of chamber - // - Double_t xyz0[3],xyz1[3],param[7],x,y,z; - t.GetGlobalXYZ(xyz0[0],xyz0[1],xyz0[2]); //starting global position - // end global position + + // Propagate closer to the current chamber if neccessary + if (currentx > (fgkMaxStep + t.GetX())) { + if (!PropagateToX(t,currentx-fgkMaxStep,fgkMaxStep)) { + fHClSearch->Fill(hb+2); + break; + } + } + + // Rotate track to adjacent sector if neccessary + if (!AdjustSector(&t)) { + fHClSearch->Fill(hb+3); + break; + } + + // Check whether azimuthal angle is getting too large + if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) { + fHClSearch->Fill(hb+4); + break; + } + + Double_t xyz0[3]; + Double_t xyz1[3]; + Double_t param[7]; + Double_t x; + Double_t y; + Double_t z; + // Global start position (beginning of chamber) + t.GetXYZ(xyz0); + // X-position of the end of the chamber x = fTrSec[0]->GetLayer(rowlast)->GetX(); - if (!t.GetProlongation(x,y,z)) break; - xyz1[0] = x*TMath::Cos(t.GetAlpha())-y*TMath::Sin(t.GetAlpha()); - xyz1[1] = +x*TMath::Sin(t.GetAlpha())+y*TMath::Cos(t.GetAlpha()); - xyz1[2] = z; - AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); - rho = param[0]; - radLength = param[1]; // get mean propagation parameters - // - // Find clusters - // - sector = t.GetSector(); - Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet); - if (tracklet.GetN()Fill(hb+5); + break; + } + // Global end position (end of chamber) + xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); + xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); + xyz1[2] = z; + + // Calculate the mean material budget along the path inside the chamber + AliTracker::MeanMaterialBudget(xyz0,xyz1,param); + // The mean propagation parameters (density*length and radiation length) + xrho = param[0]*param[4]; + xx0 = param[1]; + + // Find the clusters and tracklet along the path inside the chamber + sector = t.GetSector(); + Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet); + fHNCl->Fill(tracklet.GetN()); + + // Discard if in less than 1/3 of the available timebins + // clusters are found + if (tracklet.GetN() < GetTimeBinsPerPlane()/3) { + fHClSearch->Fill(hb+6); + continue; + } + //!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! + // // Propagate and update track // - for (Int_t itime= GetTimeBinsPerPlane()-1;itime>=0;itime--) { - Int_t ilayer = GetGlobalTimeBin(0, iplane,itime); + for (Int_t itime = GetTimeBinsPerPlane()-1; itime >= 0; itime--) { + + Int_t ilayer = GetGlobalTimeBin(0, iplane,itime); expectedNumberOfClusters++; - t.fNExpected++; - if (t.fX>345) t.fNExpectedLast++; - AliTRDpropagationLayer& timeBin=*(fTrSec[sector]->GetLayer(ilayer)); - AliTRDcluster *cl=0; - UInt_t index=0; - Double_t maxChi2=fgkMaxChi2; + t.SetNExpected(t.GetNExpected() + 1); + if (t.GetX() > 345.0) { + t.SetNExpectedLast(t.GetNExpectedLast() + 1); + } + AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer)); + AliTRDcluster *cl = 0; + UInt_t index = 0; + Double_t maxChi2 = fgkMaxChi2; x = timeBin.GetX(); - // + if (timeBin) { - if (clusters[ilayer]>0) { + + if (clusters[ilayer] > 0) { index = clusters[ilayer]; - cl = (AliTRDcluster*)GetCluster(index); - Double_t h01 = GetTiltFactor(cl); - maxChi2=t.GetPredictedChi2(cl,h01); + cl = (AliTRDcluster *)GetCluster(index); + //Double_t h01 = GetTiltFactor(cl); // I.B's fix + //maxChi2=t.GetPredictedChi2(cl,h01); // } if (cl) { - // if (cl->GetNPads()<5) + + //if (cl->GetNPads() < 5) Double_t dxsample = timeBin.GetdX(); t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); - Double_t h01 = GetTiltFactor(cl); - Int_t det = cl->GetDetector(); - Int_t plane = fGeom->GetPlane(det); - if (t.fX>345){ - t.fNLast++; - t.fChi2Last+=maxChi2; + Double_t h01 = GetTiltFactor(cl); + Int_t det = cl->GetDetector(); + Int_t plane = fGeom->GetPlane(det); + if (t.GetX() > 345.0) { + t.SetNLast(t.GetNLast() + 1); + t.SetChi2Last(t.GetChi2Last() + maxChi2); } Double_t xcluster = cl->GetX(); - t.PropagateTo(xcluster,radLength,rho); - if(!t.UpdateMI(cl,maxChi2,index,h01,plane)) { - if(!t.Update(cl,maxChi2,index,h01)) { + t.PropagateTo(xcluster,xx0,xrho); + maxChi2 = t.GetPredictedChi2(cl,h01); + + if (maxChi2<1e+10) + if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { + if (!t.Update(cl,maxChi2,index,h01)) { + // ???? + } + } // else SetCluster(cl, GetNumberOfClusters()-1); // A.Bercuci 25.07.07 + + + if (calibra->GetMITracking()) { + calibra->UpdateHistograms(cl,&t); + } + + // Reset material budget if 2 consecutive gold + if (plane > 0) { + if ((t.GetTracklets(plane).GetN() + t.GetTracklets(plane-1).GetN()) > 20) { + t.SetBudget(2,0.0); } - } - // - // reset material budget if 2 consecutive gold - if (plane>0) - if (t.fTracklets[plane].GetN()+t.fTracklets[plane-1].GetN()>20){ - t.fBudget[2] = 0; - } - } + } + + } + } + } - ratio0 = ncl/Float_t(fTimeBinsPerPlane); - Float_t ratio1 = Float_t(t.fN+1)/Float_t(t.fNExpected+1.); - if (tracklet.GetChi2()<18.&&ratio0>0.8 && ratio1>0.6 && ratio0+ratio1>1.5 && t.GetNCross()==0 && TMath::Abs(t.GetSnp())<0.85&&t.fN>20){ - t.MakeBackupTrack(); // make backup of the track until is gold + + ratio0 = ncl / Float_t(fTimeBinsPerPlane); + Float_t ratio1 = Float_t(t.GetNumberOfClusters()+1) / Float_t(t.GetNExpected()+1); + if ((tracklet.GetChi2() < 18.0) && + (ratio0 > 0.8) && + (ratio1 > 0.6) && + (ratio0+ratio1 > 1.5) && + (t.GetNCross() == 0) && + (TMath::Abs(t.GetSnp()) < 0.85) && + (t.GetNumberOfClusters() > 20)){ + //if (ratio0 > 0.8) { + t.MakeBackupTrack(); // Make backup of the track until is gold } } - // - return expectedNumberOfClusters; -} + return expectedNumberOfClusters; +} -Int_t AliTRDtracker::PropagateToX(AliTRDtrack& t, Double_t xToGo, Double_t maxStep) +//_____________________________________________________________________________ +Int_t AliTRDtracker::PropagateToX(AliTRDtrack &t, Double_t xToGo, Double_t maxStep) { - // Starting from current radial position of track this function + // + // Starting from current X-position of track this function // extrapolates the track up to radial position . // Returns 1 if track reaches the plane, and 0 otherwise - const Double_t kEpsilon = 0.00001; - // Double_t tanmax = TMath::Tan(0.5*AliTRDgeometry::GetAlpha()); - Double_t xpos = t.GetX(); - Double_t dir = (xpos kEpsilon){ - Double_t step = dir*TMath::Min(TMath::Abs(xToGo-xpos), maxStep); - // - Double_t xyz0[3],xyz1[3],param[7],x,y,z; - t.GetGlobalXYZ(xyz0[0],xyz0[1],xyz0[2]); //starting global position - x = xpos+step; - // - if (!t.GetProlongation(x,y,z)) return 0; // no prolongation - // - xyz1[0] = x*TMath::Cos(t.GetAlpha())-y*TMath::Sin(t.GetAlpha()); - xyz1[1] = +x*TMath::Sin(t.GetAlpha())+y*TMath::Cos(t.GetAlpha()); - xyz1[2] = z; - // - AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); - if (!t.PropagateTo(x,param[1],param[0])) return 0; + + const Double_t kEpsilon = 0.00001; + + // Current track X-position + Double_t xpos = t.GetX(); + + // Direction: inward or outward + Double_t dir = (xpos < xToGo) ? 1.0 : -1.0; + + while (((xToGo - xpos) * dir) > kEpsilon) { + + Double_t xyz0[3]; + Double_t xyz1[3]; + Double_t param[7]; + Double_t x; + Double_t y; + Double_t z; + + // The next step size + Double_t step = dir * TMath::Min(TMath::Abs(xToGo-xpos),maxStep); + + // Get the global position of the starting point + t.GetXYZ(xyz0); + + // X-position after next step + x = xpos + step; + + // Get local Y and Z at the X-position of the next step + if (!t.GetProlongation(x,y,z)) { + return 0; // No prolongation possible + } + + // The global position of the end point of this prolongation step + xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha()); + xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha()); + xyz1[2] = z; + + // Calculate the mean material budget between start and + // end point of this prolongation step + AliTracker::MeanMaterialBudget(xyz0,xyz1,param); + + // Propagate the track to the X-position after the next step + if (!t.PropagateTo(x,param[1],param[0]*param[4])) { + return 0; + } + + // Rotate the track if necessary AdjustSector(&t); + + // New track X-position xpos = t.GetX(); + } + return 1; } - - //_____________________________________________________________________________ Int_t AliTRDtracker::LoadClusters(TTree *cTree) { + // // Fills clusters into TRD tracking_sectors // Note that the numbering scheme for the TRD tracking_sectors // differs from that of TRD sectors - cout<<"\n Read Sectors clusters"<GetEntriesFast(); - fNclusters=ncl; - cout<<"\n LoadSectors: sorting "<GetEntriesFast(); + fNclusters = ncl; + AliInfo(Form("Sorting %d clusters",ncl)); UInt_t index; - for (Int_t ichamber=0;ichamber<5;ichamber++) - for (Int_t isector=0;isector<18;isector++){ - fHoles[ichamber][isector]=kTRUE; - } + while (ncl--) { + AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(ncl); + Int_t detector = c->GetDetector(); + Int_t localTimeBin = c->GetLocalTimeBin(); + Int_t sector = fGeom->GetSector(detector); + Int_t plane = fGeom->GetPlane(detector); + Int_t trackingSector = sector; - while (ncl--) { -// printf("\r %d left ",ncl); - AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(ncl); - Int_t detector=c->GetDetector(); - Int_t localTimeBin=c->GetLocalTimeBin(); - Int_t sector=fGeom->GetSector(detector); - Int_t plane=fGeom->GetPlane(detector); - - Int_t trackingSector = CookSectorIndex(sector); - if (c->GetLabel(0)>0){ - Int_t chamber = fGeom->GetChamber(detector); - fHoles[chamber][trackingSector]=kFALSE; - } + //if (c->GetQ() > 10) { + // Int_t chamber = fGeom->GetChamber(detector); + //} - Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); - if(gtb < 0) continue; + Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); + if (gtb < 0) { + continue; + } Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb); - index=ncl; - // - // apply pos correction - Transform(c); + index = ncl; + + fHXCl->Fill(c->GetX()); + + fTrSec[trackingSector]->GetLayer(layer)->SetX(c->GetX()); fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index); - } + + } + return 0; + } //_____________________________________________________________________________ @@ -984,20 +1338,26 @@ void AliTRDtracker::UnloadClusters() // Clears the arrays of clusters and tracks. Resets sectors and timebins // - Int_t i, nentr; + Int_t i; + Int_t nentr; nentr = fClusters->GetEntriesFast(); - for (i = 0; i < nentr; i++) delete fClusters->RemoveAt(i); + for (i = 0; i < nentr; i++) { + delete fClusters->RemoveAt(i); + } fNclusters = 0; nentr = fSeeds->GetEntriesFast(); - for (i = 0; i < nentr; i++) delete fSeeds->RemoveAt(i); + for (i = 0; i < nentr; i++) { + delete fSeeds->RemoveAt(i); + } nentr = fTracks->GetEntriesFast(); - for (i = 0; i < nentr; i++) delete fTracks->RemoveAt(i); + for (i = 0; i < nentr; i++) { + delete fTracks->RemoveAt(i); + } Int_t nsec = AliTRDgeometry::kNsect; - for (i = 0; i < nsec; i++) { for(Int_t pl = 0; pl < fTrSec[i]->GetNumberOfLayers(); pl++) { fTrSec[i]->GetLayer(pl)->Clear(); @@ -1006,624 +1366,788 @@ void AliTRDtracker::UnloadClusters() } -//__________________________________________________________________________ -void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESD * esd) +//_____________________________________________________________________________ +void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESDEvent *esd) { // // Creates seeds using clusters between position inner plane and outer plane // - const Double_t maxtheta = 1; - const Double_t maxphi = 2.0; - // - const Double_t kRoad0y = 6; // road for middle cluster - const Double_t kRoad0z = 8.5; // road for middle cluster - // - const Double_t kRoad1y = 2; // road in y for seeded cluster - const Double_t kRoad1z = 20; // road in z for seeded cluster - // - const Double_t kRoad2y = 3; // road in y for extrapolated cluster - const Double_t kRoad2z = 20; // road in z for extrapolated cluster - const Int_t maxseed = 3000; - Int_t maxSec=AliTRDgeometry::kNsect; - // - // linear fitters in planes - TLinearFitter fitterTC(2,"hyp2"); // fitting with tilting pads - kz fixed - kz= Z/x, + vertex const - TLinearFitter fitterT2(4,"hyp4"); // fitting with tilting pads - kz not fixed + const Double_t kMaxTheta = 1.0; + const Double_t kMaxPhi = 2.0; + + const Double_t kRoad0y = 6.0; // Road for middle cluster + const Double_t kRoad0z = 8.5; // Road for middle cluster + + const Double_t kRoad1y = 2.0; // Road in y for seeded cluster + const Double_t kRoad1z = 20.0; // Road in z for seeded cluster + + const Double_t kRoad2y = 3.0; // Road in y for extrapolated cluster + const Double_t kRoad2z = 20.0; // Road in z for extrapolated cluster + const Int_t kMaxSeed = 3000; + + Int_t maxSec = AliTRDgeometry::kNsect; + + // Linear fitters in planes + TLinearFitter fitterTC(2,"hyp2"); // Fitting with tilting pads - kz fixed - kz= Z/x, + vertex const + TLinearFitter fitterT2(4,"hyp4"); // Fitting with tilting pads - kz not fixed fitterTC.StoreData(kTRUE); fitterT2.StoreData(kTRUE); - AliRieman rieman(1000); // rieman fitter - AliRieman rieman2(1000); // rieman fitter - // - // find the maximal and minimal layer for the planes - // + AliRieman rieman(1000); // Rieman fitter + AliRieman rieman2(1000); // Rieman fitter + + // Find the maximal and minimal layer for the planes Int_t layers[6][2]; - AliTRDpropagationLayer* reflayers[6]; - for (Int_t i=0;i<6;i++){layers[i][0]=10000; layers[i][1]=0;} - for (Int_t ns=0;nsGetNumberOfLayers();ilayer++){ - AliTRDpropagationLayer& layer=*(fTrSec[ns]->GetLayer(ilayer)); - if (layer==0) continue; + AliTRDpropagationLayer *reflayers[6]; + for (Int_t i = 0; i < 6; i++) { + layers[i][0] = 10000; + layers[i][1] = 0; + } + for (Int_t ns = 0; ns < maxSec; ns++) { + for (Int_t ilayer = 0; ilayer < fTrSec[ns]->GetNumberOfLayers(); ilayer++) { + AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(ilayer)); + if (layer == 0) { + continue; + } Int_t det = layer[0]->GetDetector(); Int_t plane = fGeom->GetPlane(det); - if (ilayerlayers[plane][1]) layers[plane][1] = ilayer; + if (ilayer < layers[plane][0]) { + layers[plane][0] = ilayer; + } + if (ilayer > layers[plane][1]) { + layers[plane][1] = ilayer; + } } } - // - AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0); + + AliTRDpadPlane *padPlane = fGeom->GetPadPlane(0,0); Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); - Double_t hL[6]; // tilting angle - Double_t xcl[6]; // x - position of reference cluster - Double_t ycl[6]; // y - position of reference cluster - Double_t zcl[6]; // z - position of reference cluster - AliTRDcluster *cl[6]={0,0,0,0,0,0}; // seeding clusters - Float_t padlength[6]={10,10,10,10,10,10}; //current pad-length - Double_t chi2R =0, chi2Z=0; - Double_t chi2RF =0, chi2ZF=0; - // - Int_t nclusters; // total number of clusters - for (Int_t i=0;i<6;i++) {hL[i]=h01; if (i%2==1) hL[i]*=-1.;} - // - // - // registered seed - AliTRDseed *pseed = new AliTRDseed[maxseed*6]; - AliTRDseed *seed[maxseed]; - for (Int_t iseed=0;iseed=0;sLayer--){ - //for (Int_t dseed=5;dseed<15; dseed+=3){ //loop over central seeding time bins - iter+=1.; - Int_t dseed = 5+Int_t(iter)*3; + + Double_t seedquality[kMaxSeed]; + Double_t seedquality2[kMaxSeed]; + Double_t seedparams[kMaxSeed][7]; + Int_t seedlayer[kMaxSeed]; + Int_t registered = 0; + Int_t sort[kMaxSeed]; + + // + // Seeding part + // + for (Int_t ns = 0; ns < maxSec; ns++) { // Loop over sectors + //for (Int_t ns = 0; ns < 5; ns++) { // Loop over sectors + + registered = 0; // Reset registerd seed counter + cseed = seed[registered]; + Float_t iter = 0.0; + + for (Int_t sLayer = 2; sLayer >= 0; sLayer--) { + //for (Int_t dseed = 5; dseed < 15; dseed += 3) { + + iter += 1.0; + Int_t dseed = 5 + Int_t(iter) * 3; + // Initialize seeding layers - for (Int_t ilayer=0;ilayer<6;ilayer++){ + for (Int_t ilayer = 0; ilayer < 6; ilayer++) { reflayers[ilayer] = fTrSec[ns]->GetLayer(layers[ilayer][1]-dseed); xcl[ilayer] = reflayers[ilayer]->GetX(); - } - // - Double_t xref = (xcl[sLayer+1] + xcl[sLayer+2])*0.5; - AliTRDpropagationLayer& layer0=*reflayers[sLayer+0]; - AliTRDpropagationLayer& layer1=*reflayers[sLayer+1]; - AliTRDpropagationLayer& layer2=*reflayers[sLayer+2]; - AliTRDpropagationLayer& layer3=*reflayers[sLayer+3]; - // - Int_t maxn3 = layer3; - for (Int_t icl3=0;icl3GetSigmaZ2()*12.); + if (!cl3) { + continue; + } + padlength[sLayer+3] = TMath::Sqrt(cl3->GetSigmaZ2() * 12.0); ycl[sLayer+3] = cl3->GetY(); zcl[sLayer+3] = cl3->GetZ(); - Float_t yymin0 = ycl[sLayer+3] - 1- maxphi *(xcl[sLayer+3]-xcl[sLayer+0]); - Float_t yymax0 = ycl[sLayer+3] + 1+ maxphi *(xcl[sLayer+3]-xcl[sLayer+0]); - Int_t maxn0 = layer0; // - for (Int_t icl0=layer0.Find(yymin0);icl0IsUsed()&&cl0->IsUsed()) continue; + if (!cl0) { + continue; + } + if (cl3->IsUsed() && cl0->IsUsed()) { + continue; + } ycl[sLayer+0] = cl0->GetY(); zcl[sLayer+0] = cl0->GetZ(); - if ( ycl[sLayer+0]>yymax0) break; - Double_t tanphi = (ycl[sLayer+3]-ycl[sLayer+0])/(xcl[sLayer+3]-xcl[sLayer+0]); - if (TMath::Abs(tanphi)>maxphi) continue; - Double_t tantheta = (zcl[sLayer+3]-zcl[sLayer+0])/(xcl[sLayer+3]-xcl[sLayer+0]); - if (TMath::Abs(tantheta)>maxtheta) continue; - padlength[sLayer+0] = TMath::Sqrt(cl0->GetSigmaZ2()*12.); - // - // expected position in 1 layer - Double_t y1exp = ycl[sLayer+0]+(tanphi) *(xcl[sLayer+1]-xcl[sLayer+0]); - Double_t z1exp = zcl[sLayer+0]+(tantheta)*(xcl[sLayer+1]-xcl[sLayer+0]); - Float_t yymin1 = y1exp - kRoad0y-tanphi; - Float_t yymax1 = y1exp + kRoad0y+tanphi; - Int_t maxn1 = layer1; // - // - for (Int_t icl1=layer1.Find(yymin1);icl1 yymax0) { + break; + } + Double_t tanphi = (ycl[sLayer+3]-ycl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); + if (TMath::Abs(tanphi) > kMaxPhi) { + continue; + } + Double_t tantheta = (zcl[sLayer+3]-zcl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]); + if (TMath::Abs(tantheta) > kMaxTheta) { + continue; + } + padlength[sLayer+0] = TMath::Sqrt(cl0->GetSigmaZ2() * 12.0); + + // Expected position in 1 layer + Double_t y1exp = ycl[sLayer+0] + (tanphi) * (xcl[sLayer+1]-xcl[sLayer+0]); + Double_t z1exp = zcl[sLayer+0] + (tantheta) * (xcl[sLayer+1]-xcl[sLayer+0]); + Float_t yymin1 = y1exp - kRoad0y - tanphi; + Float_t yymax1 = y1exp + kRoad0y + tanphi; + Int_t maxn1 = layer1; + + for (Int_t icl1 = layer1.Find(yymin1); icl1 < maxn1; icl1++) { + AliTRDcluster *cl1 = layer1[icl1]; - if (!cl1) continue; + if (!cl1) { + continue; + } Int_t nusedCl = 0; if (cl3->IsUsed()) nusedCl++; if (cl0->IsUsed()) nusedCl++; if (cl1->IsUsed()) nusedCl++; - if (nusedCl>1) continue; + if (nusedCl > 1) { + continue; + } ycl[sLayer+1] = cl1->GetY(); zcl[sLayer+1] = cl1->GetZ(); - if ( ycl[sLayer+1]>yymax1) break; - if (TMath::Abs(ycl[sLayer+1]-y1exp)>kRoad0y+tanphi) continue; - if (TMath::Abs(zcl[sLayer+1]-z1exp)>kRoad0z) continue; - padlength[sLayer+1] = TMath::Sqrt(cl1->GetSigmaZ2()*12.); - // - Double_t y2exp = ycl[sLayer+0]+(tanphi) *(xcl[sLayer+2]-xcl[sLayer+0])+(ycl[sLayer+1]-y1exp); - Double_t z2exp = zcl[sLayer+0]+(tantheta)*(xcl[sLayer+2]-xcl[sLayer+0]); - Int_t index2 = layer2.FindNearestCluster(y2exp,z2exp,kRoad1y, kRoad1z); - if (index2<=0) continue; - AliTRDcluster *cl2 = (AliTRDcluster*)GetCluster(index2); - padlength[sLayer+2] = TMath::Sqrt(cl2->GetSigmaZ2()*12.); - ycl[sLayer+2] = cl2->GetY(); - zcl[sLayer+2] = cl2->GetZ(); - if (TMath::Abs(cl2->GetZ()-z2exp)>kRoad0z) continue; - // + if (ycl[sLayer+1] > yymax1) { + break; + } + if (TMath::Abs(ycl[sLayer+1]-y1exp) > kRoad0y+tanphi) { + continue; + } + if (TMath::Abs(zcl[sLayer+1]-z1exp) > kRoad0z) { + continue; + } + padlength[sLayer+1] = TMath::Sqrt(cl1->GetSigmaZ2() * 12.0); + + Double_t y2exp = ycl[sLayer+0]+(tanphi) * (xcl[sLayer+2]-xcl[sLayer+0]) + (ycl[sLayer+1]-y1exp); + Double_t z2exp = zcl[sLayer+0]+(tantheta) * (xcl[sLayer+2]-xcl[sLayer+0]); + Int_t index2 = layer2.FindNearestCluster(y2exp,z2exp,kRoad1y,kRoad1z); + if (index2 <= 0) { + continue; + } + AliTRDcluster *cl2 = (AliTRDcluster *) GetCluster(index2); + padlength[sLayer+2] = TMath::Sqrt(cl2->GetSigmaZ2() * 12.0); + ycl[sLayer+2] = cl2->GetY(); + zcl[sLayer+2] = cl2->GetZ(); + if (TMath::Abs(cl2->GetZ()-z2exp) > kRoad0z) { + continue; + } + rieman.Reset(); rieman.AddPoint(xcl[sLayer+0],ycl[sLayer+0],zcl[sLayer+0],1,10); rieman.AddPoint(xcl[sLayer+1],ycl[sLayer+1],zcl[sLayer+1],1,10); rieman.AddPoint(xcl[sLayer+3],ycl[sLayer+3],zcl[sLayer+3],1,10); rieman.AddPoint(xcl[sLayer+2],ycl[sLayer+2],zcl[sLayer+2],1,10); rieman.Update(); - // - // reset fitter - for (Int_t iLayer=0;iLayer<6;iLayer++){ + + // Reset fitter + for (Int_t iLayer = 0; iLayer < 6; iLayer++) { cseed[iLayer].Reset(); } - chi2Z =0.; chi2R=0.; - for (Int_t iLayer=0;iLayer<4;iLayer++){ - cseed[sLayer+iLayer].fZref[0] = rieman.GetZat(xcl[sLayer+iLayer]); - chi2Z += (cseed[sLayer+iLayer].fZref[0]- zcl[sLayer+iLayer])* - (cseed[sLayer+iLayer].fZref[0]- zcl[sLayer+iLayer]); - cseed[sLayer+iLayer].fZref[1] = rieman.GetDZat(xcl[sLayer+iLayer]); - cseed[sLayer+iLayer].fYref[0] = rieman.GetYat(xcl[sLayer+iLayer]); - chi2R += (cseed[sLayer+iLayer].fYref[0]- ycl[sLayer+iLayer])* - (cseed[sLayer+iLayer].fYref[0]- ycl[sLayer+iLayer]); - cseed[sLayer+iLayer].fYref[1] = rieman.GetDYat(xcl[sLayer+iLayer]); + chi2Z = 0.0; + chi2R = 0.0; + + for (Int_t iLayer = 0; iLayer < 4; iLayer++) { + cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); + chi2Z += (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]) + * (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]); + cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); + cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); + chi2R += (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]) + * (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]); + cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); } - if (TMath::Sqrt(chi2R)>1./iter) continue; - if (TMath::Sqrt(chi2Z)>7./iter) continue; - // - // - // - Float_t minmax[2]={-100,100}; - for (Int_t iLayer=0;iLayer<4;iLayer++){ - Float_t max = zcl[sLayer+iLayer]+padlength[sLayer+iLayer]*0.5+1 -cseed[sLayer+iLayer].fZref[0]; - if (maxminmax[0]) minmax[0]=min; + if (TMath::Sqrt(chi2R) > 1.0/iter) { + continue; + } + if (TMath::Sqrt(chi2Z) > 7.0/iter) { + continue; + } + + Float_t minmax[2] = { -100.0, 100.0 }; + for (Int_t iLayer = 0; iLayer < 4; iLayer++) { + Float_t max = zcl[sLayer+iLayer]+padlength[sLayer+iLayer] * 0.5 + + 1.0 - cseed[sLayer+iLayer].GetZref(0); + if (max < minmax[1]) { + minmax[1] = max; + } + Float_t min = zcl[sLayer+iLayer]-padlength[sLayer+iLayer] * 0.5 + - 1.0 - cseed[sLayer+iLayer].GetZref(0); + if (min > minmax[0]) { + minmax[0] = min; + } } + Bool_t isFake = kFALSE; - if (cl0->GetLabel(0)!=cl3->GetLabel(0)) isFake = kTRUE; - if (cl1->GetLabel(0)!=cl3->GetLabel(0)) isFake = kTRUE; - if (cl2->GetLabel(0)!=cl3->GetLabel(0)) isFake = kTRUE; - if ((!isFake) || (icl3%10)==0 ){ //debugging print - TTreeSRedirector& cstream = *fDebugStreamer; - cstream<<"Seeds0"<< - "isFake="<GetLabel(0) != cl3->GetLabel(0)) { + isFake = kTRUE; } - - //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< - //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< - //<<<<<<<<<<<<<<<<<< FIT SEEDING PART <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< - //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< + if (cl1->GetLabel(0) != cl3->GetLabel(0)) { + isFake = kTRUE; + } + if (cl2->GetLabel(0) != cl3->GetLabel(0)) { + isFake = kTRUE; + } + + if (AliTRDReconstructor::StreamLevel() > 0) { + if ((!isFake) || ((icl3%10) == 0)) { // Debugging print + TTreeSRedirector &cstream = *fDebugStreamer; + cstream << "Seeds0" + << "isFake=" << isFake + << "Cl0.=" << cl0 + << "Cl1.=" << cl1 + << "Cl2.=" << cl2 + << "Cl3.=" << cl3 + << "Xref=" << xref + << "X0=" << xcl[sLayer+0] + << "X1=" << xcl[sLayer+1] + << "X2=" << xcl[sLayer+2] + << "X3=" << xcl[sLayer+3] + << "Y2exp=" << y2exp + << "Z2exp=" << z2exp + << "Chi2R=" << chi2R + << "Chi2Z=" << chi2Z + << "Seed0.=" << &cseed[sLayer+0] + << "Seed1.=" << &cseed[sLayer+1] + << "Seed2.=" << &cseed[sLayer+2] + << "Seed3.=" << &cseed[sLayer+3] + << "Zmin=" << minmax[0] + << "Zmax=" << minmax[1] + << "\n"; + } + } + + //////////////////////////////////////////////////////////////////////////////////// + // + // Fit seeding part + // + //////////////////////////////////////////////////////////////////////////////////// + cl[sLayer+0] = cl0; cl[sLayer+1] = cl1; cl[sLayer+2] = cl2; cl[sLayer+3] = cl3; - Bool_t isOK=kTRUE; - for (Int_t jLayer=0;jLayer<4;jLayer++){ - cseed[sLayer+jLayer].fTilt = hL[sLayer+jLayer]; - cseed[sLayer+jLayer].fPadLength = padlength[sLayer+jLayer]; - cseed[sLayer+jLayer].fX0 = xcl[sLayer+jLayer]; - for (Int_t iter=0; iter<2; iter++){ + Bool_t isOK = kTRUE; + + for (Int_t jLayer = 0; jLayer < 4; jLayer++) { + + cseed[sLayer+jLayer].SetTilt(hL[sLayer+jLayer]); + cseed[sLayer+jLayer].SetPadLength(padlength[sLayer+jLayer]); + cseed[sLayer+jLayer].SetX0(xcl[sLayer+jLayer]); + + for (Int_t iter = 0; iter < 2; iter++) { + // - // in iteration 0 we try only one pad-row - // if quality not sufficient we try 2 pad-rows - about 5% of tracks cross 2 pad-rows + // In iteration 0 we try only one pad-row + // If quality not sufficient we try 2 pad-rows - about 5% of tracks cross 2 pad-rows // AliTRDseed tseed = cseed[sLayer+jLayer]; - Float_t roadz = padlength[sLayer+jLayer]*0.5; - if (iter>0) roadz = padlength[sLayer+jLayer]; - // - Float_t quality =10000; - for (Int_t iTime=2;iTime<20;iTime++){ - AliTRDpropagationLayer& layer = *(fTrSec[ns]->GetLayer(layers[sLayer+jLayer][1]-iTime)); - Double_t dxlayer= layer.GetX()-xcl[sLayer+jLayer]; - Double_t zexp = cl[sLayer+jLayer]->GetZ() ; - if (iter>0){ - // try 2 pad-rows in second iteration - zexp = tseed.fZref[0]+ tseed.fZref[1]*dxlayer; - if (zexp>cl[sLayer+jLayer]->GetZ()) zexp = cl[sLayer+jLayer]->GetZ()+padlength[sLayer+jLayer]*0.5; - if (zexpGetZ()) zexp = cl[sLayer+jLayer]->GetZ()-padlength[sLayer+jLayer]*0.5; + Float_t roadz = padlength[sLayer+jLayer] * 0.5; + if (iter > 0) { + roadz = padlength[sLayer+jLayer]; + } + + Float_t quality = 10000.0; + + for (Int_t iTime = 2; iTime < 20; iTime++) { + + AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[sLayer+jLayer][1]-iTime)); + Double_t dxlayer = layer.GetX() - xcl[sLayer+jLayer]; + Double_t zexp = cl[sLayer+jLayer]->GetZ(); + + if (iter > 0) { + // Try 2 pad-rows in second iteration + zexp = tseed.GetZref(0) + tseed.GetZref(1) * dxlayer; + if (zexp > cl[sLayer+jLayer]->GetZ()) { + zexp = cl[sLayer+jLayer]->GetZ() + padlength[sLayer+jLayer]*0.5; + } + if (zexp < cl[sLayer+jLayer]->GetZ()) { + zexp = cl[sLayer+jLayer]->GetZ() - padlength[sLayer+jLayer]*0.5; + } } - // - Double_t yexp = tseed.fYref[0]+ - tseed.fYref[1]*dxlayer; - Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y, roadz); - if (index<=0) continue; - AliTRDcluster *cl = (AliTRDcluster*)GetCluster(index); - // - tseed.fIndexes[iTime] = index; - tseed.fClusters[iTime] = cl; // register cluster - tseed.fX[iTime] = dxlayer; // register cluster - tseed.fY[iTime] = cl->GetY(); // register cluster - tseed.fZ[iTime] = cl->GetZ(); // register cluster - } + + Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; + Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); + if (index <= 0) { + continue; + } + AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); + + tseed.SetIndexes(iTime,index); + tseed.SetClusters(iTime,cl); // Register cluster + tseed.SetX(iTime,dxlayer); // Register cluster + tseed.SetY(iTime,cl->GetY()); // Register cluster + tseed.SetZ(iTime,cl->GetZ()); // Register cluster + + } + tseed.Update(); - //count the number of clusters and distortions into quality - Float_t dangle = tseed.fYfit[1]-tseed.fYref[1]; - Float_t tquality = (18-tseed.fN2)/2. + TMath::Abs(dangle)/0.1+ - TMath::Abs(tseed.fYfit[0]-tseed.fYref[0])/0.2+ - 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer]; - if (iter==0 && tseed.isOK()) { + + // Count the number of clusters and distortions into quality + Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1); + Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1 + + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2 + + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; + if ((iter == 0) && tseed.IsOK()) { cseed[sLayer+jLayer] = tseed; - quality = tquality; - if (tquality<5) break; + quality = tquality; + if (tquality < 5) { + break; + } } - if (tseed.isOK() && tquality25){ + nusedCl += cseed[sLayer+jLayer].GetNUsed(); + if (nusedCl > 25) { isOK = kFALSE; break; - } + } + + } // Loop: jLayer + + if (!isOK) { + continue; } - // - if (!isOK) continue; - nclusters=0; - for (Int_t iLayer=0;iLayer<4;iLayer++){ - if (cseed[sLayer+iLayer].isOK()){ - nclusters+=cseed[sLayer+iLayer].fN2; + nclusters = 0; + for (Int_t iLayer = 0; iLayer < 4; iLayer++) { + if (cseed[sLayer+iLayer].IsOK()) { + nclusters += cseed[sLayer+iLayer].GetN2(); } } - // - // iteration 0 + + // Iteration 0 rieman.Reset(); - for (Int_t iLayer=0;iLayer<4;iLayer++){ - rieman.AddPoint(xcl[sLayer+iLayer],cseed[sLayer+iLayer].fYfitR[0], - cseed[sLayer+iLayer].fZProb,1,10); + for (Int_t iLayer = 0; iLayer < 4; iLayer++) { + rieman.AddPoint(xcl[sLayer+iLayer] + ,cseed[sLayer+iLayer].GetYfitR(0) + ,cseed[sLayer+iLayer].GetZProb() + ,1 + ,10); } rieman.Update(); - // - // - chi2R =0; chi2Z=0; - for (Int_t iLayer=0;iLayer<4;iLayer++){ - cseed[sLayer+iLayer].fYref[0] = rieman.GetYat(xcl[sLayer+iLayer]); - chi2R += (cseed[sLayer+iLayer].fYref[0]-cseed[sLayer+iLayer].fYfitR[0])* - (cseed[sLayer+iLayer].fYref[0]-cseed[sLayer+iLayer].fYfitR[0]); - cseed[sLayer+iLayer].fYref[1] = rieman.GetDYat(xcl[sLayer+iLayer]); - cseed[sLayer+iLayer].fZref[0] = rieman.GetZat(xcl[sLayer+iLayer]); - chi2Z += (cseed[sLayer+iLayer].fZref[0]- cseed[sLayer+iLayer].fMeanz)* - (cseed[sLayer+iLayer].fZref[0]- cseed[sLayer+iLayer].fMeanz); - cseed[sLayer+iLayer].fZref[1] = rieman.GetDZat(xcl[sLayer+iLayer]); + + chi2R = 0.0; + chi2Z = 0.0; + + for (Int_t iLayer = 0; iLayer < 4; iLayer++) { + cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer])); + chi2R += (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)) + * (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0)); + cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer])); + cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer])); + chi2Z += (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()) + * (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz()); + cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer])); } Double_t curv = rieman.GetC(); + // - // likelihoods - // - Double_t sumda = - TMath::Abs(cseed[sLayer+0].fYfitR[1]- cseed[sLayer+0].fYref[1])+ - TMath::Abs(cseed[sLayer+1].fYfitR[1]- cseed[sLayer+1].fYref[1])+ - TMath::Abs(cseed[sLayer+2].fYfitR[1]- cseed[sLayer+2].fYref[1])+ - TMath::Abs(cseed[sLayer+3].fYfitR[1]- cseed[sLayer+3].fYref[1]); - Double_t likea = TMath::Exp(-sumda*10.6); - Double_t likechi2 = 0.0000000001; - if (chi2R<0.5) likechi2+=TMath::Exp(-TMath::Sqrt(chi2R)*7.73); - Double_t likechi2z = TMath::Exp(-chi2Z*0.088)/TMath::Exp(-chi2Z*0.019); - Double_t likeN = TMath::Exp(-(72-nclusters)*0.19); - Double_t like = likea*likechi2*likechi2z*likeN; + // Likelihoods // - Double_t likePrimY = TMath::Exp(-TMath::Abs(cseed[sLayer+0].fYref[1]-130*curv)*1.9); - Double_t likePrimZ = TMath::Exp(-TMath::Abs(cseed[sLayer+0].fZref[1]- - cseed[sLayer+0].fZref[0]/xcl[sLayer+0])*5.9); + Double_t sumda = TMath::Abs(cseed[sLayer+0].GetYfitR(1) - cseed[sLayer+0].GetYref(1)) + + TMath::Abs(cseed[sLayer+1].GetYfitR(1) - cseed[sLayer+1].GetYref(1)) + + TMath::Abs(cseed[sLayer+2].GetYfitR(1) - cseed[sLayer+2].GetYref(1)) + + TMath::Abs(cseed[sLayer+3].GetYfitR(1) - cseed[sLayer+3].GetYref(1)); + Double_t likea = TMath::Exp(-sumda*10.6); + Double_t likechi2 = 0.0000000001; + if (chi2R < 0.5) { + likechi2 += TMath::Exp(-TMath::Sqrt(chi2R) * 7.73); + } + Double_t likechi2z = TMath::Exp(-chi2Z * 0.088) / TMath::Exp(-chi2Z * 0.019); + Double_t likeN = TMath::Exp(-(72 - nclusters) * 0.19); + Double_t like = likea * likechi2 * likechi2z * likeN; + Double_t likePrimY = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetYref(1) - 130.0*curv) * 1.9); + Double_t likePrimZ = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetZref(1) + - cseed[sLayer+0].GetZref(0) / xcl[sLayer+0]) * 5.9); Double_t likePrim = TMath::Max(likePrimY*likePrimZ,0.0005); - seedquality[registered] = like; - seedlayer[registered] = sLayer; - if (TMath::Log(0.000000000000001+like)<-15) continue; + seedquality[registered] = like; + seedlayer[registered] = sLayer; + if (TMath::Log(0.000000000000001 + like) < -15) { + continue; + } AliTRDseed seedb[6]; - for (Int_t iLayer=0;iLayer<6;iLayer++){ + for (Int_t iLayer = 0; iLayer < 6; iLayer++) { seedb[iLayer] = cseed[iLayer]; } + + //////////////////////////////////////////////////////////////////////////////////// // - //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< - //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< - //<<<<<<<<<<<<<<< FULL TRACK FIT PART <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< - //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< - // - Int_t nlayers = 0; - Int_t nusedf = 0; - Int_t findable = 0; + // Full track fit part // - // add new layers - avoid long extrapolation + //////////////////////////////////////////////////////////////////////////////////// + + Int_t nlayers = 0; + Int_t nusedf = 0; + Int_t findable = 0; + // - Int_t tLayer[2]={0,0}; - if (sLayer==2) {tLayer[0]=1; tLayer[1]=0;} - if (sLayer==1) {tLayer[0]=5; tLayer[1]=0;} - if (sLayer==0) {tLayer[0]=4; tLayer[1]=5;} + // Add new layers - avoid long extrapolation // - for (Int_t iLayer=0;iLayer<2;iLayer++){ - Int_t jLayer = tLayer[iLayer]; // set tracking layer + Int_t tLayer[2] = { 0, 0 }; + if (sLayer == 2) { + tLayer[0] = 1; + tLayer[1] = 0; + } + if (sLayer == 1) { + tLayer[0] = 5; + tLayer[1] = 0; + } + if (sLayer == 0) { + tLayer[0] = 4; + tLayer[1] = 5; + } + + for (Int_t iLayer = 0; iLayer < 2; iLayer++) { + Int_t jLayer = tLayer[iLayer]; // Set tracking layer cseed[jLayer].Reset(); - cseed[jLayer].fTilt = hL[jLayer]; - cseed[jLayer].fPadLength = padlength[jLayer]; - cseed[jLayer].fX0 = xcl[jLayer]; - // get pad length and rough cluster - Int_t indexdummy = reflayers[jLayer]->FindNearestCluster(cseed[jLayer].fYref[0], - cseed[jLayer].fZref[0],kRoad2y,kRoad2z); - if (indexdummy<=0) continue; - AliTRDcluster *cldummy = (AliTRDcluster*)GetCluster(indexdummy); - padlength[jLayer] = TMath::Sqrt(cldummy->GetSigmaZ2()*12.); + cseed[jLayer].SetTilt(hL[jLayer]); + cseed[jLayer].SetPadLength(padlength[jLayer]); + cseed[jLayer].SetX0(xcl[jLayer]); + // Get pad length and rough cluster + Int_t indexdummy = reflayers[jLayer]->FindNearestCluster(cseed[jLayer].GetYref(0) + ,cseed[jLayer].GetZref(0) + ,kRoad2y + ,kRoad2z); + if (indexdummy <= 0) { + continue; + } + AliTRDcluster *cldummy = (AliTRDcluster *) GetCluster(indexdummy); + padlength[jLayer] = TMath::Sqrt(cldummy->GetSigmaZ2() * 12.0); } - AliTRDseed::FitRiemanTilt(cseed, kTRUE); - // - for (Int_t iLayer=0;iLayer<2;iLayer++){ - Int_t jLayer = tLayer[iLayer]; // set tracking layer - if ( (jLayer==0) && !(cseed[1].isOK())) continue; // break not allowed - if ( (jLayer==5) && !(cseed[4].isOK())) continue; // break not allowed - Float_t zexp = cseed[jLayer].fZref[0]; - Double_t zroad = padlength[jLayer]*0.5+1.; - // - // - for (Int_t iter=0;iter<2;iter++){ + AliTRDseed::FitRiemanTilt(cseed,kTRUE); + + for (Int_t iLayer = 0; iLayer < 2; iLayer++) { + + Int_t jLayer = tLayer[iLayer]; // set tracking layer + if ((jLayer == 0) && !(cseed[1].IsOK())) { + continue; // break not allowed + } + if ((jLayer == 5) && !(cseed[4].IsOK())) { + continue; // break not allowed + } + Float_t zexp = cseed[jLayer].GetZref(0); + Double_t zroad = padlength[jLayer] * 0.5 + 1.0; + + for (Int_t iter = 0; iter < 2; iter++) { + AliTRDseed tseed = cseed[jLayer]; - Float_t quality = 10000; - for (Int_t iTime=2;iTime<20;iTime++){ - AliTRDpropagationLayer& layer = *(fTrSec[ns]->GetLayer(layers[jLayer][1]-iTime)); - Double_t dxlayer = layer.GetX()-xcl[jLayer]; - Double_t yexp = tseed.fYref[0]+tseed.fYref[1]*dxlayer; - Float_t yroad = kRoad1y; - Int_t index = layer.FindNearestCluster(yexp,zexp, yroad, zroad); - if (index<=0) continue; - AliTRDcluster *cl = (AliTRDcluster*)GetCluster(index); - // - tseed.fIndexes[iTime] = index; - tseed.fClusters[iTime] = cl; // register cluster - tseed.fX[iTime] = dxlayer; // register cluster - tseed.fY[iTime] = cl->GetY(); // register cluster - tseed.fZ[iTime] = cl->GetZ(); // register cluster - } + Float_t quality = 10000.0; + + for (Int_t iTime = 2; iTime < 20; iTime++) { + AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[jLayer][1]-iTime)); + Double_t dxlayer = layer.GetX()-xcl[jLayer]; + Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer; + Float_t yroad = kRoad1y; + Int_t index = layer.FindNearestCluster(yexp,zexp,yroad,zroad); + if (index <= 0) { + continue; + } + AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); + tseed.SetIndexes(iTime,index); + tseed.SetClusters(iTime,cl); // Register cluster + tseed.SetX(iTime,dxlayer); // Register cluster + tseed.SetY(iTime,cl->GetY()); // Register cluster + tseed.SetZ(iTime,cl->GetZ()); // Register cluster + } + tseed.Update(); - if (tseed.isOK()){ - Float_t dangle = tseed.fYfit[1]-tseed.fYref[1]; - Float_t tquality = (18-tseed.fN2)/2. + TMath::Abs(dangle)/0.1+ - TMath::Abs(tseed.fYfit[0]-tseed.fYref[0])/0.2+ - 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer]; - // - if (tquality=lastquality || chi2>lastchi2) break; + if ((sumquality >= lastquality) || + (chi2 > lastchi2)) { + break; + } lastquality = sumquality; lastchi2 = chi2; - if (iter>0){ - for (Int_t jLayer=0;jLayer<6;jLayer++){ + if (iter > 0) { + for (Int_t jLayer = 0; jLayer < 6; jLayer++) { cseed[jLayer] = bseed[jLayer]; } } TMath::Sort(6,squality,sortindexes,kFALSE); - // - // - for (Int_t jLayer=5;jLayer>1;jLayer--){ + + for (Int_t jLayer = 5; jLayer > 1; jLayer--) { + Int_t bLayer = sortindexes[jLayer]; AliTRDseed tseed = bseed[bLayer]; - for (Int_t iTime=2;iTime<20;iTime++){ - AliTRDpropagationLayer& layer = *(fTrSec[ns]->GetLayer(layers[bLayer][1]-iTime)); - Double_t dxlayer= layer.GetX()-xcl[bLayer]; - // - Double_t zexp = tseed.fZref[0]; - Double_t zcor = tseed.fTilt*(tseed.fZProb-tseed.fZref[0]); - // - Float_t roadz = padlength[bLayer]+1; - if (TMath::Abs(tseed.fZProb-zexp)> padlength[bLayer]*0.5) {roadz = padlength[bLayer]*0.5;} - if (tseed.fZfit[1]*tseed.fZref[1]<0) {roadz = padlength[bLayer]*0.5;} - if (TMath::Abs(tseed.fZProb-zexp)<0.1*padlength[bLayer]) { - zexp = tseed.fZProb; - roadz = padlength[bLayer]*0.5; + + for (Int_t iTime = 2; iTime < 20; iTime++) { + + AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[bLayer][1]-iTime)); + Double_t dxlayer = layer.GetX() - xcl[bLayer]; + Double_t zexp = tseed.GetZref(0); + Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); + Float_t roadz = padlength[bLayer] + 1; + if (TMath::Abs(tseed.GetZProb() - zexp) > 0.5*padlength[bLayer]) { + roadz = padlength[bLayer] * 0.5; + } + if (tseed.GetZfit(1)*tseed.GetZref(1) < 0.0) { + roadz = padlength[bLayer] * 0.5; + } + if (TMath::Abs(tseed.GetZProb() - zexp) < 0.1*padlength[bLayer]) { + zexp = tseed.GetZProb(); + roadz = padlength[bLayer] * 0.5; } - // - Double_t yexp = tseed.fYref[0]+ - tseed.fYref[1]*dxlayer-zcor; - Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y, roadz); - if (index<=0) continue; - AliTRDcluster *cl = (AliTRDcluster*)GetCluster(index); - // - tseed.fIndexes[iTime] = index; - tseed.fClusters[iTime] = cl; // register cluster - tseed.fX[iTime] = dxlayer; // register cluster - tseed.fY[iTime] = cl->GetY(); // register cluster - tseed.fZ[iTime] = cl->GetZ(); // register cluster - } + + Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer - zcor; + Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz); + if (index <= 0) { + continue; + } + AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index); + + tseed.SetIndexes(iTime,index); + tseed.SetClusters(iTime,cl); // Register cluster + tseed.SetX(iTime,dxlayer); // Register cluster + tseed.SetY(iTime,cl->GetY()); // Register cluster + tseed.SetZ(iTime,cl->GetZ()); // Register cluster + + } + tseed.Update(); - if (tseed.isOK()) { - Float_t dangle = tseed.fYfit[1]-tseed.fYref[1]; - Double_t zcor = tseed.fTilt*(tseed.fZProb-tseed.fZref[0]); - // - Float_t tquality = (18-tseed.fN2)/2. + TMath::Abs(dangle)/0.1+ - TMath::Abs(tseed.fYfit[0]-(tseed.fYref[0]-zcor))/0.2+ - 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer]; - // - if (tqualitypadlength[iLayer]*0.5+1) + Bool_t acceptablez = kTRUE; + for (Int_t iLayer = 0; iLayer < 6; iLayer++) { + if (cseed[iLayer].IsOK()) { + Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); + if (TMath::Abs(cseed[iLayer].GetZProb() - zT2) > padlength[iLayer] * 0.5 + 1.0) { acceptablez = kFALSE; + } } } - if (!acceptablez){ + if (!acceptablez) { fitterT2.FixParameter(3,zmf); fitterT2.FixParameter(4,dzmf); fitterT2.Eval(); @@ -1632,212 +2156,232 @@ void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESD * esd) rpolz0 = fitterT2.GetParameter(3); rpolz1 = fitterT2.GetParameter(4); } - // - Double_t chi2TR = fitterT2.GetChisquare()/Float_t(npointsT); - Double_t chi2TC = fitterTC.GetChisquare()/Float_t(npointsT); - // + + Double_t chi2TR = fitterT2.GetChisquare() / Float_t(npointsT); + Double_t chi2TC = fitterTC.GetChisquare() / Float_t(npointsT); Double_t polz1c = fitterTC.GetParameter(2); - Double_t polz0c = polz1c*xref2; - // + Double_t polz0c = polz1c * xref2; Double_t aC = fitterTC.GetParameter(0); Double_t bC = fitterTC.GetParameter(1); - Double_t CC = aC/TMath::Sqrt(bC*bC+1.); // curvature - // + Double_t cC = aC / TMath::Sqrt(bC * bC + 1.0); // Curvature Double_t aR = fitterT2.GetParameter(0); Double_t bR = fitterT2.GetParameter(1); Double_t dR = fitterT2.GetParameter(2); - Double_t CR = 1+bR*bR-dR*aR; - Double_t dca = 0.; - if (CR>0){ - dca = -dR/(TMath::Sqrt(1+bR*bR-dR*aR)+TMath::Sqrt(1+bR*bR)); - CR = aR/TMath::Sqrt(CR); + Double_t cR = 1.0 + bR*bR - dR*aR; + Double_t dca = 0.0; + if (cR > 0.0) { + dca = -dR / (TMath::Sqrt(1.0 + bR*bR - dR*aR) + TMath::Sqrt(1.0 + bR*bR)); + cR = aR / TMath::Sqrt(cR); } - // - Double_t chi2ZT2=0, chi2ZTC=0; - for (Int_t iLayer=0; iLayer<6;iLayer++){ - if (cseed[iLayer].isOK()){ - Double_t zT2 = rpolz0+rpolz1*(xcl[iLayer] - xref2); - Double_t zTC = polz0c+polz1c*(xcl[iLayer] - xref2); - chi2ZT2 += TMath::Abs(cseed[iLayer].fMeanz-zT2); - chi2ZTC += TMath::Abs(cseed[iLayer].fMeanz-zTC); + + Double_t chi2ZT2 = 0.0; + Double_t chi2ZTC = 0.0; + for (Int_t iLayer = 0; iLayer < 6; iLayer++) { + if (cseed[iLayer].IsOK()) { + Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2); + Double_t zTC = polz0c + polz1c * (xcl[iLayer] - xref2); + chi2ZT2 += TMath::Abs(cseed[iLayer].GetMeanz() - zT2); + chi2ZTC += TMath::Abs(cseed[iLayer].GetMeanz() - zTC); } } - chi2ZT2/=TMath::Max((nlayers-3.),1.); - chi2ZTC/=TMath::Max((nlayers-3.),1.); - // - // - // - AliTRDseed::FitRiemanTilt(cseed, kTRUE); - Float_t sumdaf = 0; - for (Int_t iLayer=0;iLayer<6;iLayer++){ - if (cseed[iLayer].isOK()) - sumdaf += TMath::Abs((cseed[iLayer].fYfit[1]-cseed[iLayer].fYref[1])/cseed[iLayer].fSigmaY2); - } - sumdaf /= Float_t (nlayers-2.); + chi2ZT2 /= TMath::Max((nlayers - 3.0),1.0); + chi2ZTC /= TMath::Max((nlayers - 3.0),1.0); + + AliTRDseed::FitRiemanTilt(cseed,kTRUE); + Float_t sumdaf = 0.0; + for (Int_t iLayer = 0; iLayer < 6; iLayer++) { + if (cseed[iLayer].IsOK()) { + sumdaf += TMath::Abs((cseed[iLayer].GetYfit(1) - cseed[iLayer].GetYref(1)) + / cseed[iLayer].GetSigmaY2()); + } + } + sumdaf /= Float_t (nlayers - 2.0); + // - // likelihoods for full track + // Likelihoods for full track // - Double_t likezf = TMath::Exp(-chi2ZF*0.14); - Double_t likechi2C = TMath::Exp(-chi2TC*0.677); - Double_t likechi2TR = TMath::Exp(-chi2TR*0.78); - Double_t likeaf = TMath::Exp(-sumdaf*3.23); - seedquality2[registered] = likezf*likechi2TR*likeaf; + Double_t likezf = TMath::Exp(-chi2ZF * 0.14); + Double_t likechi2C = TMath::Exp(-chi2TC * 0.677); + Double_t likechi2TR = TMath::Exp(-chi2TR * 0.78); + Double_t likeaf = TMath::Exp(-sumdaf * 3.23); + seedquality2[registered] = likezf * likechi2TR * likeaf; + + // Still needed ???? // Bool_t isGold = kFALSE; // // if (nlayers == 6 && TMath::Log(0.000000001+seedquality2[index])<-5.) isGold =kTRUE; // gold // if (nlayers == findable && TMath::Log(0.000000001+seedquality2[index])<-4.) isGold =kTRUE; // gold // if (isGold &&nusedf<10){ // for (Int_t jLayer=0;jLayer<6;jLayer++){ -// if ( seed[index][jLayer].isOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.1) +// if ( seed[index][jLayer].IsOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.1) // seed[index][jLayer].UseClusters(); //sign gold // } // } - // - // - // - Int_t index0=0; - if (!cseed[0].isOK()){ + + Int_t index0 = 0; + if (!cseed[0].IsOK()) { index0 = 1; - if (!cseed[1].isOK()) index0 = 2; + if (!cseed[1].IsOK()) { + index0 = 2; + } } - seedparams[registered][0] = cseed[index0].fX0; - seedparams[registered][1] = cseed[index0].fYref[0]; - seedparams[registered][2] = cseed[index0].fZref[0]; - seedparams[registered][5] = CR; - seedparams[registered][3] = cseed[index0].fX0*CR - TMath::Sin(TMath::ATan(cseed[0].fYref[1])); - seedparams[registered][4] = cseed[index0].fZref[1]/ - TMath::Sqrt(1+cseed[index0].fYref[1]*cseed[index0].fYref[1]); + seedparams[registered][0] = cseed[index0].GetX0(); + seedparams[registered][1] = cseed[index0].GetYref(0); + seedparams[registered][2] = cseed[index0].GetZref(0); + seedparams[registered][5] = cR; + seedparams[registered][3] = cseed[index0].GetX0() * cR - TMath::Sin(TMath::ATan(cseed[0].GetYref(1))); + seedparams[registered][4] = cseed[index0].GetZref(1) + / TMath::Sqrt(1.0 + cseed[index0].GetYref(1) * cseed[index0].GetYref(1)); seedparams[registered][6] = ns; - // - // - Int_t labels[12], outlab[24]; - Int_t nlab=0; - for (Int_t iLayer=0;iLayer<6;iLayer++){ - if (!cseed[iLayer].isOK()) continue; - if (cseed[iLayer].fLabels[0]>=0) { - labels[nlab] = cseed[iLayer].fLabels[0]; + + Int_t labels[12]; + Int_t outlab[24]; + Int_t nlab = 0; + for (Int_t iLayer = 0; iLayer < 6; iLayer++) { + if (!cseed[iLayer].IsOK()) { + continue; + } + if (cseed[iLayer].GetLabels(0) >= 0) { + labels[nlab] = cseed[iLayer].GetLabels(0); nlab++; } - if (cseed[iLayer].fLabels[1]>=0) { - labels[nlab] = cseed[iLayer].fLabels[1]; + if (cseed[iLayer].GetLabels(1) >= 0) { + labels[nlab] = cseed[iLayer].GetLabels(1); nlab++; - } + } } Freq(nlab,labels,outlab,kFALSE); - Int_t label = outlab[0]; - Int_t frequency = outlab[1]; - for (Int_t iLayer=0;iLayer<6;iLayer++){ - cseed[iLayer].fFreq = frequency; - cseed[iLayer].fC = CR; - cseed[iLayer].fCC = CC; - cseed[iLayer].fChi2 = chi2TR; - cseed[iLayer].fChi2Z = chi2ZF; + Int_t label = outlab[0]; + Int_t frequency = outlab[1]; + for (Int_t iLayer = 0; iLayer < 6; iLayer++) { + cseed[iLayer].SetFreq(frequency); + cseed[iLayer].SetC(cR); + cseed[iLayer].SetCC(cC); + cseed[iLayer].SetChi2(chi2TR); + cseed[iLayer].SetChi2Z(chi2ZF); } - // - if (1||(!isFake)){ //debugging print + + // Debugging print + if (1 || (!isFake)) { Float_t zvertex = GetZ(); - TTreeSRedirector& cstream = *fDebugStreamer; - cstream<<"Seeds1"<< - "isFake="< 0) { + cstream << "Seeds1" + << "isFake=" << isFake + << "Vertex=" << zvertex + << "Rieman2.=" << &rieman2 + << "Rieman.=" << &rieman + << "Xref=" << xref + << "X0=" << xcl[0] + << "X1=" << xcl[1] + << "X2=" << xcl[2] + << "X3=" << xcl[3] + << "X4=" << xcl[4] + << "X5=" << xcl[5] + << "Chi2R=" << chi2R + << "Chi2Z=" << chi2Z + << "Chi2RF=" << chi2RF // Chi2 of trackletes on full track + << "Chi2ZF=" << chi2ZF // Chi2 z on tracklets on full track + << "Chi2ZT2=" << chi2ZT2 // Chi2 z on tracklets on full track - rieman tilt + << "Chi2ZTC=" << chi2ZTC // Chi2 z on tracklets on full track - rieman tilt const + << "Chi2TR=" << chi2TR // Chi2 without vertex constrain + << "Chi2TC=" << chi2TC // Chi2 with vertex constrain + << "C=" << curv // Non constrained - no tilt correction + << "DR=" << dR // DR parameter - tilt correction + << "DCA=" << dca // DCA - tilt correction + << "CR=" << cR // Non constrained curvature - tilt correction + << "CC=" << cC // Constrained curvature + << "Polz0=" << polz0c + << "Polz1=" << polz1c + << "RPolz0=" << rpolz0 + << "RPolz1=" << rpolz1 + << "Ncl=" << nclusters + << "Nlayers=" << nlayers + << "NUsedS=" << nusedCl + << "NUsed=" << nusedf + << "Findable=" << findable + << "Like=" << like + << "LikePrim=" << likePrim + << "Likechi2C=" << likechi2C + << "Likechi2TR=" << likechi2TR + << "Likezf=" << likezf + << "LikeF=" << seedquality2[registered] + << "S0.=" << &cseed[0] + << "S1.=" << &cseed[1] + << "S2.=" << &cseed[2] + << "S3.=" << &cseed[3] + << "S4.=" << &cseed[4] + << "S5.=" << &cseed[5] + << "SB0.=" << &seedb[0] + << "SB1.=" << &seedb[1] + << "SB2.=" << &seedb[2] + << "SB3.=" << &seedb[3] + << "SB4.=" << &seedb[4] + << "SB5.=" << &seedb[5] + << "Label=" << label + << "Freq=" << frequency + << "sLayer=" << sLayer + << "\n"; + } } - if (registeredGetLabel(ilab); - if (tindex>=0){ + for (Int_t ilab = 0; ilab < 3; ilab++) { + Int_t tindex = seed[index][jLayer].GetClusters(itime)->GetLabel(ilab); + if (tindex >= 0) { labelsall[nlabelsall] = tindex; nlabelsall++; } @@ -1845,259 +2389,298 @@ void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESD * esd) } } } + } - // - if (nused>30) continue; - // - if (iter==0){ - if (nlayers<6) continue; - if (TMath::Log(0.000000001+seedquality2[index])<-5.) continue; // gold + + if (nused > 30) { + continue; } - // - if (iter==1){ - if (nlayers=0) { - labels[nlab] = seed[index][iLayer].fLabels[0]; + + Int_t labels[1000]; + Int_t outlab[1000]; + Int_t nlab = 0; + for (Int_t iLayer = 0; iLayer < 6; iLayer++) { + if (seed[index][iLayer].IsOK()) { + if (seed[index][iLayer].GetLabels(0) >= 0) { + labels[nlab] = seed[index][iLayer].GetLabels(0); nlab++; } - if (seed[index][iLayer].fLabels[1]>=0) { - labels[nlab] = seed[index][iLayer].fLabels[1]; + if (seed[index][iLayer].GetLabels(1) >= 0) { + labels[nlab] = seed[index][iLayer].GetLabels(1); nlab++; - } - } + } + } } Freq(nlab,labels,outlab,kFALSE); - Int_t label = outlab[0]; - Int_t frequency = outlab[1]; + Int_t label = outlab[0]; + Int_t frequency = outlab[1]; Freq(nlabelsall,labelsall,outlab,kFALSE); - Int_t label1 = outlab[0]; - Int_t label2 = outlab[2]; - Float_t fakeratio = (naccepted-outlab[1])/Float_t(naccepted); - Float_t ratio = Float_t(nused)/Float_t(ncl); - if (ratio<0.25){ - for (Int_t jLayer=0;jLayer<6;jLayer++){ - if ( seed[index][jLayer].isOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.2 ) - seed[index][jLayer].UseClusters(); //sign gold + Int_t label1 = outlab[0]; + Int_t label2 = outlab[2]; + Float_t fakeratio = (naccepted - outlab[1]) / Float_t(naccepted); + Float_t ratio = Float_t(nused) / Float_t(ncl); + if (ratio < 0.25) { + for (Int_t jLayer = 0; jLayer < 6; jLayer++) { + if ((seed[index][jLayer].IsOK()) && + (TMath::Abs(seed[index][jLayer].GetYfit(1) - seed[index][jLayer].GetYfit(1)) < 0.2)) { + seed[index][jLayer].UseClusters(); // Sign gold + } } } + + Int_t eventNrInFile = esd->GetEventNumberInFile(); // This is most likely NOT the event number you'd like to use. It has nothing to do with the 'real' event number. + TTreeSRedirector &cstream = *fDebugStreamer; + // - Int_t eventNr = esd->GetEventNumber(); - TTreeSRedirector& cstream = *fDebugStreamer; - // - // register seed + // Register seed // - AliTRDtrack * track = RegisterSeed(seed[index],seedparams[index]); - AliTRDtrack dummy; - if (!track) track=&dummy; - else{ + AliTRDtrack *track = RegisterSeed(seed[index],seedparams[index]); + AliTRDtrack dummy; + if (!track) { + track = &dummy; + } + else { AliESDtrack esdtrack; - esdtrack.UpdateTrackParams(track, AliESDtrack::kTRDout); + esdtrack.UpdateTrackParams(track,AliESDtrack::kTRDout); esdtrack.SetLabel(label); esd->AddTrack(&esdtrack); - TTreeSRedirector& cstream = *fDebugStreamer; - cstream<<"Tracks"<< - "EventNr="< 0) { + cstream << "Tracks" + << "EventNrInFile=" << eventNrInFile + << "ESD.=" << &esdtrack + << "trd.=" << track + << "trdback.=" << track + << "\n"; + } } - cstream<<"Seeds2"<< - "Iter="< 0) { + cstream << "Seeds2" + << "Iter=" << iter + << "Track.=" << track + << "Like=" << seedquality[index] + << "LikeF=" << seedquality2[index] + << "S0.=" << &seed[index][0] + << "S1.=" << &seed[index][1] + << "S2.=" << &seed[index][2] + << "S3.=" << &seed[index][3] + << "S4.=" << &seed[index][4] + << "S5.=" << &seed[index][5] + << "Label=" << label + << "Label1=" << label1 + << "Label2=" << label2 + << "FakeRatio=" << fakeratio + << "Freq=" << frequency + << "Ncl=" << ncl + << "Nlayers=" << nlayers + << "Findable=" << findable + << "NUsed=" << nused + << "sLayer=" << sLayer + << "EventNrInFile=" << eventNrInFile + << "\n"; + } + + } // Loop: iseed + + } // Loop: iter + + } // End of loop over sectors + delete [] pseed; + } //_____________________________________________________________________________ -Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *ClusterTree) const +Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *clusterTree) const { // - // Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0) - // from the file. The names of the cluster tree and branches + // Reads AliTRDclusters from the file. + // The names of the cluster tree and branches // should match the ones used in AliTRDclusterizer::WriteClusters() // - Int_t nsize = Int_t(ClusterTree->GetTotBytes()/(sizeof(AliTRDcluster))); + + Int_t nsize = Int_t(clusterTree->GetTotBytes() / (sizeof(AliTRDcluster))); TObjArray *clusterArray = new TObjArray(nsize+1000); - TBranch *branch=ClusterTree->GetBranch("TRDcluster"); + TBranch *branch = clusterTree->GetBranch("TRDcluster"); if (!branch) { - Error("ReadClusters","Can't get the branch !"); + AliError("Can't get the branch !"); return 1; } branch->SetAddress(&clusterArray); - Int_t nEntries = (Int_t) ClusterTree->GetEntries(); - // printf("found %d entries in %s.\n",nEntries,ClusterTree->GetName()); - // Loop through all entries in the tree - Int_t nbytes = 0; + Int_t nEntries = (Int_t) clusterTree->GetEntries(); + Int_t nbytes = 0; AliTRDcluster *c = 0; - // printf("\n"); for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) { // Import the tree - nbytes += ClusterTree->GetEvent(iEntry); + nbytes += clusterTree->GetEvent(iEntry); // Get the number of points in the detector Int_t nCluster = clusterArray->GetEntriesFast(); -// printf("\r Read %d clusters from entry %d", nCluster, iEntry); // Loop through all TRD digits for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) { - c = (AliTRDcluster*)clusterArray->UncheckedAt(iCluster); + c = (AliTRDcluster *) clusterArray->UncheckedAt(iCluster); AliTRDcluster *co = c; array->AddLast(co); - // delete clusterArray->RemoveAt(iCluster); clusterArray->RemoveAt(iCluster); } + } -// cout<<"Allocated"<GetEntriesFast()<<"\n"; delete clusterArray; return 0; + } -//__________________________________________________________________ -Bool_t AliTRDtracker::GetTrackPoint(Int_t index, AliTrackPoint& p) const +//_____________________________________________________________________________ +Bool_t AliTRDtracker::GetTrackPoint(Int_t index, AliTrackPoint &p) const { // // Get track space point with index i // Origin: C.Cheshkov // - AliTRDcluster *cl = (AliTRDcluster*)fClusters->UncheckedAt(index); - Int_t idet = cl->GetDetector(); - Int_t isector = fGeom->GetSector(idet); - Int_t ichamber= fGeom->GetChamber(idet); - Int_t iplan = fGeom->GetPlane(idet); + AliTRDcluster *cl = (AliTRDcluster *) fClusters->UncheckedAt(index); + Int_t idet = cl->GetDetector(); + Int_t isector = fGeom->GetSector(idet); + Int_t ichamber = fGeom->GetChamber(idet); + Int_t iplan = fGeom->GetPlane(idet); Double_t local[3]; - local[0]=GetX(isector,iplan,cl->GetLocalTimeBin()); - local[1]=cl->GetY(); - local[2]=cl->GetZ(); + local[0] = GetX(isector,iplan,cl->GetLocalTimeBin()); + local[1] = cl->GetY(); + local[2] = cl->GetZ(); Double_t global[3]; fGeom->RotateBack(idet,local,global); p.SetXYZ(global[0],global[1],global[2]); - AliAlignObj::ELayerID iLayer = AliAlignObj::kTRD1; + AliGeomManager::ELayerID iLayer = AliGeomManager::kTRD1; switch (iplan) { case 0: - iLayer = AliAlignObj::kTRD1; + iLayer = AliGeomManager::kTRD1; break; case 1: - iLayer = AliAlignObj::kTRD2; + iLayer = AliGeomManager::kTRD2; break; case 2: - iLayer = AliAlignObj::kTRD3; + iLayer = AliGeomManager::kTRD3; break; case 3: - iLayer = AliAlignObj::kTRD4; + iLayer = AliGeomManager::kTRD4; break; case 4: - iLayer = AliAlignObj::kTRD5; + iLayer = AliGeomManager::kTRD5; break; case 5: - iLayer = AliAlignObj::kTRD6; + iLayer = AliGeomManager::kTRD6; break; }; - Int_t modId = isector*fGeom->Ncham()+ichamber; - UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId); + Int_t modId = isector * fGeom->Ncham() + ichamber; + UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,modId); p.SetVolumeID(volid); return kTRUE; } -//__________________________________________________________________ -void AliTRDtracker::CookLabel(AliKalmanTrack* pt, Float_t wrong) const +//_____________________________________________________________________________ +void AliTRDtracker::CookLabel(AliKalmanTrack *pt, Float_t wrong) const { // // This cooks a label. Mmmmh, smells good... // - Int_t label=123456789, index, i, j; - Int_t ncl=pt->GetNumberOfClusters(); - const Int_t kRange = fTrSec[0]->GetOuterTimeBin()+1; + Int_t label = 123456789; + Int_t index; + Int_t i; + Int_t j; + Int_t ncl = pt->GetNumberOfClusters(); + + const Int_t kRange = fTrSec[0]->GetOuterTimeBin() + 1; Bool_t labelAdded; - // Int_t s[kRange][2]; Int_t **s = new Int_t* [kRange]; - for (i=0; iGetClusterIndex(i); - AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(index); + Int_t t0; + Int_t t1; + Int_t t2; + + for (i = 0; i < ncl; i++) { + index = pt->GetClusterIndex(i); + AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); t0=c->GetLabel(0); t1=c->GetLabel(1); t2=c->GetLabel(2); } - for (i=0; iGetClusterIndex(i); - AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(index); - for (Int_t k=0; k<3; k++) { - label=c->GetLabel(k); - labelAdded=kFALSE; j=0; + for (i = 0; i < ncl; i++) { + index = pt->GetClusterIndex(i); + AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); + for (Int_t k = 0; k < 3; k++) { + label = c->GetLabel(k); + labelAdded = kFALSE; + j = 0; if (label >= 0) { - while ( (!labelAdded) && ( j < kRange ) ) { - if (s[j][0]==label || s[j][1]==0) { - s[j][0]=label; - s[j][1]=s[j][1]+1; - labelAdded=kTRUE; + while ((!labelAdded) && (j < kRange)) { + if ((s[j][0] == label) || + (s[j][1] == 0)) { + s[j][0] = label; + s[j][1] = s[j][1] + 1; + labelAdded = kTRUE; } j++; } @@ -2105,70 +2688,85 @@ void AliTRDtracker::CookLabel(AliKalmanTrack* pt, Float_t wrong) const } } - Int_t max=0; + Int_t max = 0; label = -123456789; - for (i=0; imax) { - max=s[i][1]; label=s[i][0]; + for (i = 0; i < kRange; i++) { + if (s[i][1] > max) { + max = s[i][1]; + label = s[i][0]; } } - for (i=0; i wrong) label=-label; + if ((1.0 - Float_t(max)/ncl) > wrong) { + label = -label; + } pt->SetLabel(label); } - -//__________________________________________________________________ -void AliTRDtracker::UseClusters(const AliKalmanTrack* t, Int_t from) const +//_____________________________________________________________________________ +void AliTRDtracker::UseClusters(const AliKalmanTrack *t, Int_t from) const { // // Use clusters, but don't abuse them! // - const Float_t kmaxchi2 =18; - const Float_t kmincl =10; - AliTRDtrack * track = (AliTRDtrack*)t; - // - Int_t ncl=t->GetNumberOfClusters(); - for (Int_t i=from; iGetClusterIndex(i); - AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(index); - // + + const Float_t kmaxchi2 = 18; + const Float_t kmincl = 10; + + AliTRDtrack *track = (AliTRDtrack *) t; + + Int_t ncl = t->GetNumberOfClusters(); + for (Int_t i = from; i < ncl; i++) { + Int_t index = t->GetClusterIndex(i); + AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index); Int_t iplane = fGeom->GetPlane(c->GetDetector()); - if (track->fTracklets[iplane].GetChi2()>kmaxchi2) continue; - if (track->fTracklets[iplane].GetN()IsUsed())) c->Use(); + if (track->GetTracklets(iplane).GetChi2() > kmaxchi2) { + continue; + } + if (track->GetTracklets(iplane).GetN() < kmincl) { + continue; + } + if (!(c->IsUsed())) { + c->Use(); + } } -} +} -//_____________________________________________________________________ +//_____________________________________________________________________________ Double_t AliTRDtracker::ExpectedSigmaY2(Double_t , Double_t , Double_t ) const { + // // Parametrised "expected" error of the cluster reconstruction in Y + // Double_t s = 0.08 * 0.08; return s; + } -//_____________________________________________________________________ +//_____________________________________________________________________________ Double_t AliTRDtracker::ExpectedSigmaZ2(Double_t , Double_t ) const { + // // Parametrised "expected" error of the cluster reconstruction in Z + // - Double_t s = 9 * 9 /12.; + Double_t s = 9.0 * 9.0 / 12.0; return s; + } -//_____________________________________________________________________ +//_____________________________________________________________________________ Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t localTB) const { // @@ -2177,179 +2775,219 @@ Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t localTB) const // Int_t index = fTrSec[sector]->CookTimeBinIndex(plane, localTB); - Int_t pl = fTrSec[sector]->GetLayerNumber(index); + Int_t pl = fTrSec[sector]->GetLayerNumber(index); + return fTrSec[sector]->GetLayer(pl)->GetX(); } - -//_______________________________________________________ -AliTRDtracker::AliTRDpropagationLayer::AliTRDpropagationLayer(Double_t x, - Double_t dx, Double_t rho, Double_t radLength, Int_t tbIndex, Int_t plane) +//_____________________________________________________________________________ +AliTRDtracker::AliTRDpropagationLayer + ::AliTRDpropagationLayer(Double_t x, Double_t dx, Double_t rho + , Double_t radLength, Int_t tbIndex, Int_t plane) + :fN(0) + ,fSec(0) + ,fClusters(NULL) + ,fIndex(NULL) + ,fX(x) + ,fdX(dx) + ,fRho(rho) + ,fX0(radLength) + ,fTimeBinIndex(tbIndex) + ,fPlane(plane) + ,fYmax(0) + ,fYmaxSensitive(0) + ,fHole(kFALSE) + ,fHoleZc(0) + ,fHoleZmax(0) + ,fHoleYc(0) + ,fHoleYmax(0) + ,fHoleRho(0) + ,fHoleX0(0) { // // AliTRDpropagationLayer constructor // - fN = 0; fX = x; fdX = dx; fRho = rho; fX0 = radLength; - fClusters = NULL; fIndex = NULL; fTimeBinIndex = tbIndex; - fPlane = plane; - - for(Int_t i=0; i < (Int_t) kZones; i++) { - fZc[i]=0; fZmax[i] = 0; + for (Int_t i = 0; i < (Int_t) kZones; i++) { + fZc[i] = 0; + fZmax[i] = 0; } - fYmax = 0; - - if(fTimeBinIndex >= 0) { + if (fTimeBinIndex >= 0) { fClusters = new AliTRDcluster*[kMaxClusterPerTimeBin]; - fIndex = new UInt_t[kMaxClusterPerTimeBin]; + fIndex = new UInt_t[kMaxClusterPerTimeBin]; } - for (Int_t i=0;i<5;i++) fIsHole[i] = kFALSE; - fHole = kFALSE; - fHoleZc = 0; - fHoleZmax = 0; - fHoleYc = 0; - fHoleYmax = 0; - fHoleRho = 0; - fHoleX0 = 0; + for (Int_t i = 0; i < 5; i++) { + fIsHole[i] = kFALSE; + } } -//_______________________________________________________ -void AliTRDtracker::AliTRDpropagationLayer::SetHole( - Double_t Zmax, Double_t Ymax, Double_t rho, - Double_t radLength, Double_t Yc, Double_t Zc) +//_____________________________________________________________________________ +void AliTRDtracker::AliTRDpropagationLayer + ::SetHole(Double_t Zmax, Double_t Ymax, Double_t rho + , Double_t radLength, Double_t Yc, Double_t Zc) { // // Sets hole in the layer // - fHole = kTRUE; - fHoleZc = Zc; + + fHole = kTRUE; + fHoleZc = Zc; fHoleZmax = Zmax; - fHoleYc = Yc; + fHoleYc = Yc; fHoleYmax = Ymax; - fHoleRho = rho; - fHoleX0 = radLength; + fHoleRho = rho; + fHoleX0 = radLength; + } - -//_______________________________________________________ -AliTRDtracker::AliTRDtrackingSector::AliTRDtrackingSector(AliTRDgeometry* geo, Int_t gs) +//_____________________________________________________________________________ +AliTRDtracker::AliTRDtrackingSector + ::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs) + :fN(0) + ,fGeom(geo) + ,fGeomSector(gs) { // // AliTRDtrackingSector Constructor // + AliTRDpadPlane *padPlane = 0; + AliTRDpropagationLayer *ppl = 0; - fGeom = geo; - fGeomSector = gs; - fN = 0; - // - // get holes description from geometry + // Get holes description from geometry Bool_t holes[AliTRDgeometry::kNcham]; - //printf("sector\t%d\t",gs); - for (Int_t icham=0; ichamIsHole(0,icham,gs); - //printf("%d",holes[icham]); } - //printf("\n"); - for(UInt_t i=0; i < kMaxTimeBinIndex; i++) fTimeBinIndex[i] = -1; - - - AliTRDpropagationLayer* ppl; + for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { + fTimeBinIndex[i] = -1; + } - Double_t x, dx, rho, radLength; - // Int_t steps; + Double_t x; + Double_t dx; + Double_t rho; + Double_t radLength; - // add layers for each of the planes - Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region + // Add layers for each of the planes + Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region //Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region + const Int_t kNchambers = AliTRDgeometry::Ncham(); Int_t tbIndex; - const Int_t kNchambers = AliTRDgeometry::Ncham(); - Double_t ymax = 0; - Double_t ymaxsensitive=0; - Double_t *zc = new Double_t[kNchambers]; - Double_t *zmax = new Double_t[kNchambers]; + Double_t ymax = 0; + Double_t ymaxsensitive = 0; + Double_t *zc = new Double_t[kNchambers]; + Double_t *zmax = new Double_t[kNchambers]; Double_t *zmaxsensitive = new Double_t[kNchambers]; - - AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance(); - if (!commonParam) - { - printf(" "); - printf("Could not get common params\n"); - return; - } - for(Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) { - - ymax = fGeom->GetChamberWidth(plane)/2.; - // Modidified for new pad plane class, 22.04.05 (C.B.) - padPlane = commonParam->GetPadPlane(plane,0); - ymaxsensitive = (padPlane->GetColSize(1)*padPlane->GetNcols()-4)/2.; - for(Int_t ch = 0; ch < kNchambers; ch++) { - zmax[ch] = fGeom->GetChamberLength(plane,ch)/2; - // - // Modidified for new pad plane class, 22.04.05 (C.B.) - Float_t pad = padPlane->GetRowSize(1); - Float_t row0 = commonParam->GetRow0(plane,ch,0); - Int_t nPads = commonParam->GetRowMax(plane,ch,0); - zmaxsensitive[ch] = Float_t(nPads)*pad/2.; - zc[ch] = -(pad * nPads)/2 + row0; + for (Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) { + + ymax = fGeom->GetChamberWidth(plane) / 2.0; + padPlane = fGeom->GetPadPlane(plane,0); + ymaxsensitive = (padPlane->GetColSize(1) * padPlane->GetNcols() - 4.0) / 2.0; + + for (Int_t ch = 0; ch < kNchambers; ch++) { + zmax[ch] = fGeom->GetChamberLength(plane,ch) / 2.0; + Float_t pad = padPlane->GetRowSize(1); + Float_t row0 = fGeom->GetRow0(plane,ch,0); + Int_t nPads = fGeom->GetRowMax(plane,ch,0); + zmaxsensitive[ch] = Float_t(nPads) * pad / 2.0; + zc[ch] = -(pad * nPads) / 2.0 + row0; } - dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0) - / AliTRDcalibDB::Instance()->GetSamplingFrequency(); - rho = 0.00295 * 0.85; radLength = 11.0; + dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0) + / AliTRDCommonParam::Instance()->GetSamplingFrequency(); + rho = 0.00295 * 0.85; //???? + radLength = 11.0; Double_t x0 = (Double_t) AliTRDgeometry::GetTime0(plane); //Double_t xbottom = x0 - dxDrift; - //Double_t xtop = x0 + dxAmp; - // + //Double_t xtop = x0 + dxAmp; + Int_t nTimeBins = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); - for (Int_t iTime = 0; iTimeSetYmax(ymax,ymaxsensitive); - ppl->SetZ(zc, zmax, zmaxsensitive); + ppl->SetZ(zc,zmax,zmaxsensitive); ppl->SetHoles(holes); InsertLayer(ppl); + } + } MapTimeBinLayers(); + delete [] zc; delete [] zmax; delete [] zmaxsensitive; } -//______________________________________________________ +//_____________________________________________________________________________ +AliTRDtracker::AliTRDtrackingSector + ::AliTRDtrackingSector(const AliTRDtrackingSector &/*t*/) + :fN(0) + ,fGeom(0) + ,fGeomSector(0) +{ + // + // Copy constructor + // + +} -Int_t AliTRDtracker::AliTRDtrackingSector::CookTimeBinIndex(Int_t plane, Int_t localTB) const +//_____________________________________________________________________________ +AliTRDtracker::AliTRDtrackingSector + ::~AliTRDtrackingSector() { // - // depending on the digitization parameters calculates "global" - // time bin index for timebin in plane + // Destructor + // + + for (Int_t i = 0; i < fN; i++) { + delete fLayers[i]; + } + +} + +//_____________________________________________________________________________ +Int_t AliTRDtracker::AliTRDtrackingSector + ::CookTimeBinIndex(Int_t plane, Int_t localTB) const +{ // + // Depending on the digitization parameters calculates global + // (i.e. for a whole TRD stack of 6 planes) time bin index for + // timebin in plane // + Int_t tbPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); - Int_t gtb = (plane+1) * tbPerPlane - localTB -1; - if (localTB<0) return -1; - if (gtb<0) return -1; + Int_t gtb = (plane+1) * tbPerPlane - localTB - 1; + if (localTB < 0) { + return -1; + } + if (gtb < 0) { + return -1; + } + return gtb; -} -//______________________________________________________ +} -void AliTRDtracker::AliTRDtrackingSector::MapTimeBinLayers() +//_____________________________________________________________________________ +void AliTRDtracker::AliTRDtrackingSector + ::MapTimeBinLayers() { // // For all sensitive time bins sets corresponding layer index @@ -2358,411 +2996,490 @@ void AliTRDtracker::AliTRDtrackingSector::MapTimeBinLayers() Int_t index; - for(Int_t i = 0; i < fN; i++) { + for (Int_t i = 0; i < fN; i++) { + index = fLayers[i]->GetTimeBinIndex(); - // printf("gtb %d -> pl %d -> x %f \n", index, i, fLayers[i]->GetX()); - - if(index < 0) continue; - if(index >= (Int_t) kMaxTimeBinIndex) { - printf("*** AliTRDtracker::MapTimeBinLayers: \n"); - printf(" index %d exceeds allowed maximum of %d!\n", - index, kMaxTimeBinIndex-1); + if (index < 0) { continue; } + if (index >= (Int_t) kMaxTimeBinIndex) { + //AliWarning(Form("Index %d exceeds allowed maximum of %d!\n" + // ,index,kMaxTimeBinIndex-1)); + continue; + } + fTimeBinIndex[index] = i; - } -} - -//______________________________________________________ + } +} -Int_t AliTRDtracker::AliTRDtrackingSector::GetLayerNumber(Double_t x) const +//_____________________________________________________________________________ +Int_t AliTRDtracker::AliTRDtrackingSector + ::GetLayerNumber(Double_t x) const { // // Returns the number of time bin which in radial position is closest to // - if(x >= fLayers[fN-1]->GetX()) return fN-1; - if(x <= fLayers[0]->GetX()) return 0; + if (x >= fLayers[fN-1]->GetX()) { + return fN - 1; + } + if (x <= fLayers[ 0]->GetX()) { + return 0; + } + + Int_t b = 0; + Int_t e = fN - 1; + Int_t m = (b + e) / 2; - Int_t b=0, e=fN-1, m=(b+e)/2; - for (; b fLayers[m]->GetX()) b=m+1; - else e=m; + for ( ; b < e; m = (b + e) / 2) { + if (x > fLayers[m]->GetX()) { + b = m + 1; + } + else { + e = m; + } } - if(TMath::Abs(x - fLayers[m]->GetX()) > - TMath::Abs(x - fLayers[m+1]->GetX())) return m+1; - else return m; -} + if (TMath::Abs(x - fLayers[m]->GetX()) > TMath::Abs(x - fLayers[m+1]->GetX())) { + return m + 1; + } + else { + return m; + } -//______________________________________________________ +} -Int_t AliTRDtracker::AliTRDtrackingSector::GetInnerTimeBin() const +//_____________________________________________________________________________ +Int_t AliTRDtracker::AliTRDtrackingSector + ::GetInnerTimeBin() const { // // Returns number of the innermost SENSITIVE propagation layer // return GetLayerNumber(0); -} -//______________________________________________________ +} -Int_t AliTRDtracker::AliTRDtrackingSector::GetOuterTimeBin() const +//_____________________________________________________________________________ +Int_t AliTRDtracker::AliTRDtrackingSector + ::GetOuterTimeBin() const { // // Returns number of the outermost SENSITIVE time bin // return GetLayerNumber(GetNumberOfTimeBins() - 1); -} -//______________________________________________________ +} -Int_t AliTRDtracker::AliTRDtrackingSector::GetNumberOfTimeBins() const +//_____________________________________________________________________________ +Int_t AliTRDtracker::AliTRDtrackingSector + ::GetNumberOfTimeBins() const { // // Returns number of SENSITIVE time bins // - Int_t tb, layer; - for(tb = kMaxTimeBinIndex-1; tb >=0; tb--) { + Int_t tb; + Int_t layer; + + for (tb = kMaxTimeBinIndex - 1; tb >= 0; tb--) { layer = GetLayerNumber(tb); - if(layer>=0) break; + if (layer >= 0) { + break; + } } - return tb+1; -} -//______________________________________________________ + return tb + 1; + +} -void AliTRDtracker::AliTRDtrackingSector::InsertLayer(AliTRDpropagationLayer* pl) +//_____________________________________________________________________________ +void AliTRDtracker::AliTRDtrackingSector + ::InsertLayer(AliTRDpropagationLayer *pl) { // // Insert layer in fLayers array. // Layers are sorted according to X coordinate. + // + + if (fN == ((Int_t) kMaxLayersPerSector)) { + //AliWarning("Too many layers !\n"); + return; + } - if ( fN == ((Int_t) kMaxLayersPerSector)) { - printf("AliTRDtrackingSector::InsertLayer(): Too many layers !\n"); + if (fN == 0) { + fLayers[fN++] = pl; return; } - if (fN==0) {fLayers[fN++] = pl; return;} - Int_t i=Find(pl->GetX()); - memmove(fLayers+i+1 ,fLayers+i,(fN-i)*sizeof(AliTRDpropagationLayer*)); - fLayers[i]=pl; fN++; + Int_t i = Find(pl->GetX()); -} + memmove(fLayers+i+1,fLayers+i,(fN-i)*sizeof(AliTRDpropagationLayer*)); -//______________________________________________________ + fLayers[i] = pl; + fN++; + +} -Int_t AliTRDtracker::AliTRDtrackingSector::Find(Double_t x) const +//_____________________________________________________________________________ +Int_t AliTRDtracker::AliTRDtrackingSector + ::Find(Double_t x) const { // // Returns index of the propagation layer nearest to X // - if (x <= fLayers[0]->GetX()) return 0; - if (x > fLayers[fN-1]->GetX()) return fN; - Int_t b=0, e=fN-1, m=(b+e)/2; - for (; b fLayers[m]->GetX()) b=m+1; - else e=m; + if (x <= fLayers[0]->GetX()) { + return 0; + } + + if (x > fLayers[fN-1]->GetX()) { + return fN; } - return m; -} + Int_t b = 0; + Int_t e = fN-1; + Int_t m = (b + e) / 2; + for (; b < e; m = (b + e) / 2) { + if (x > fLayers[m]->GetX()) { + b = m + 1; + } + else { + e = m; + } + } + return m; +} -//______________________________________________________ -void AliTRDtracker::AliTRDpropagationLayer::SetZ(Double_t* center, Double_t *w, Double_t *wsensitive ) +//_____________________________________________________________________________ +void AliTRDtracker::AliTRDpropagationLayer + ::SetZ(Double_t *center, Double_t *w, Double_t *wsensitive ) { // // set centers and the width of sectors - for (Int_t icham=0;icham< AliTRDgeometry::kNcham;icham++){ - fZc[icham] = center[icham]; - fZmax[icham] = w[icham]; + // + + for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { + fZc[icham] = center[icham]; + fZmax[icham] = w[icham]; fZmaxSensitive[icham] = wsensitive[icham]; - // printf("chamber\t%d\tzc\t%f\tzmax\t%f\tzsens\t%f\n",icham,fZc[icham],fZmax[icham],fZmaxSensitive[icham]); } + } -//______________________________________________________ +//_____________________________________________________________________________ void AliTRDtracker::AliTRDpropagationLayer::SetHoles(Bool_t *holes) { // // set centers and the width of sectors + // + fHole = kFALSE; - for (Int_t icham=0;icham< AliTRDgeometry::kNcham;icham++){ + + for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { fIsHole[icham] = holes[icham]; - if (holes[icham]) fHole = kTRUE; + if (holes[icham]) { + fHole = kTRUE; + } } -} +} +//_____________________________________________________________________________ +void AliTRDtracker::AliTRDpropagationLayer + ::InsertCluster(AliTRDcluster *c, UInt_t index) +{ + // + // Insert cluster in cluster array. + // Clusters are sorted according to Y coordinate. + // + if (fTimeBinIndex < 0) { + //AliWarning("Attempt to insert cluster into non-sensitive time bin!\n"); + return; + } - -//______________________________________________________ - -void AliTRDtracker::AliTRDpropagationLayer::InsertCluster(AliTRDcluster* c, - UInt_t index) { - -// Insert cluster in cluster array. -// Clusters are sorted according to Y coordinate. - - if(fTimeBinIndex < 0) { - printf("*** attempt to insert cluster into non-sensitive time bin!\n"); + if (fN == (Int_t) kMaxClusterPerTimeBin) { + //AliWarning("Too many clusters !\n"); return; } - if (fN== (Int_t) kMaxClusterPerTimeBin) { - printf("AliTRDpropagationLayer::InsertCluster(): Too many clusters !\n"); + if (fN == 0) { + fIndex[0] = index; + fClusters[fN++] = c; return; } - if (fN==0) {fIndex[0]=index; fClusters[fN++]=c; return;} - Int_t i=Find(c->GetY()); - memmove(fClusters+i+1 ,fClusters+i,(fN-i)*sizeof(AliTRDcluster*)); - memmove(fIndex +i+1 ,fIndex +i,(fN-i)*sizeof(UInt_t)); - fIndex[i]=index; fClusters[i]=c; fN++; + + Int_t i = Find(c->GetY()); + memmove(fClusters+i+1,fClusters+i,(fN-i)*sizeof(AliTRDcluster*)); + memmove(fIndex +i+1,fIndex +i,(fN-i)*sizeof(UInt_t)); + fIndex[i] = index; + fClusters[i] = c; + fN++; + } -//______________________________________________________ +//_____________________________________________________________________________ +Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const +{ + // + // Returns index of the cluster nearest in Y + // -Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const { + if (fN <= 0) { + return 0; + } + if (y <= fClusters[0]->GetY()) { + return 0; + } + if (y > fClusters[fN-1]->GetY()) { + return fN; + } -// Returns index of the cluster nearest in Y + Int_t b = 0; + Int_t e = fN - 1; + Int_t m = (b + e) / 2; - if (fN<=0) return 0; - if (y <= fClusters[0]->GetY()) return 0; - if (y > fClusters[fN-1]->GetY()) return fN; - Int_t b=0, e=fN-1, m=(b+e)/2; - for (; b fClusters[m]->GetY()) b=m+1; - else e=m; + for ( ; b < e; m = (b + e) / 2) { + if (y > fClusters[m]->GetY()) { + b = m + 1; + } + else { + e = m; + } } + return m; + } -Int_t AliTRDtracker::AliTRDpropagationLayer::FindNearestCluster(Float_t y, Float_t z, Float_t maxroad, Float_t maxroadz) const +//_____________________________________________________________________________ +Int_t AliTRDtracker::AliTRDpropagationLayer + ::FindNearestCluster(Float_t y, Float_t z, Float_t maxroad + , Float_t maxroadz) const { // // Returns index of the cluster nearest to the given y,z // - Int_t index = -1; - Int_t maxn = fN; + + Int_t index = -1; + Int_t maxn = fN; Float_t mindist = maxroad; - // - for (Int_t i=Find(y-maxroad); iGetY(); - // - if (ycl > y+maxroad) break; - if (TMath::Abs(c->GetZ()-z) > maxroadz) continue; - if (TMath::Abs(ycl-y) (y + maxroad)) { + break; + } + if (TMath::Abs(c->GetZ() - z) > maxroadz) { + continue; + } + if (TMath::Abs(ycl - y) < mindist) { + mindist = TMath::Abs(ycl - y); + index = fIndex[i]; + } } + return index; + } +//_____________________________________________________________________________ +Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster *c) +{ + // + // Returns correction factor for tilted pads geometry + // -//--------------------------------------------------------- + Int_t det = c->GetDetector(); + Int_t plane = fGeom->GetPlane(det); + AliTRDpadPlane *padPlane = fGeom->GetPadPlane(plane,0); + Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); -Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster* c) { -// -// Returns correction factor for tilted pads geometry -// - Int_t det = c->GetDetector(); - Int_t plane = fGeom->GetPlane(det); - AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(plane,0); - Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle()); + if (fNoTilt) { + h01 = 0; + } - if(fNoTilt) h01 = 0; return h01; + } -void AliTRDtracker::CookdEdxTimBin(AliTRDtrack& TRDtrack) -{ - // *** ADDED TO GET MORE INFORMATION FOR TRD PID ---- PS - // This is setting fdEdxPlane and fTimBinPlane - // Sums up the charge in each plane for track TRDtrack and also get the - // Time bin for Max. Cluster - // Prashant Shukla (shukla@physi.uni-heidelberg.de) - - Double_t clscharge[kNPlane], maxclscharge[kNPlane]; - Int_t nCluster[kNPlane], timebin[kNPlane]; - - //Initialization of cluster charge per plane. - for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) { - clscharge[iPlane] = 0.0; - nCluster[iPlane] = 0; - timebin[iPlane] = -1; - maxclscharge[iPlane] = 0.0; - } - - // Loop through all clusters associated to track TRDtrack - Int_t nClus = TRDtrack.GetNumberOfClusters(); // from Kalmantrack - for (Int_t iClus = 0; iClus < nClus; iClus++) { - Double_t charge = TRDtrack.GetClusterdQdl(iClus); - Int_t index = TRDtrack.GetClusterIndex(iClus); - AliTRDcluster *TRDcluster = (AliTRDcluster *) GetCluster(index); - if (!TRDcluster) continue; - Int_t tb = TRDcluster->GetLocalTimeBin(); - if (!tb) continue; - Int_t detector = TRDcluster->GetDetector(); - Int_t iPlane = fGeom->GetPlane(detector); - clscharge[iPlane] = clscharge[iPlane]+charge; - if(charge > maxclscharge[iPlane]) { - maxclscharge[iPlane] = charge; - timebin[iPlane] = tb; - } - nCluster[iPlane]++; - } // end of loop over cluster - - // Setting the fdEdxPlane and fTimBinPlane variabales - Double_t Total_ch = 0; - for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) { - // Quality control of TRD track. - if (nCluster[iPlane]<= 5) { - clscharge[iPlane]=0.0; - timebin[iPlane]=-1; - } - if (nCluster[iPlane]) clscharge[iPlane] /= nCluster[iPlane]; - TRDtrack.SetPIDsignals(clscharge[iPlane], iPlane); - TRDtrack.SetPIDTimBin(timebin[iPlane], iPlane); - Total_ch= Total_ch+clscharge[iPlane]; - } - // Int_t i; - // Int_t nc=TRDtrack.GetNumberOfClusters(); - // Float_t dedx=0; - // for (i=0; i and . + // Also the corresponding tracklet is calculated + // Correction coeficients - depend on TRD parameters - to be changed accordingly + // + + const Int_t kN1 = 100; + const Int_t kN2 = 10; + + Double_t x[kN1]; + Double_t yt[kN1]; + Double_t zt[kN1]; + Float_t zmean[kN1]; + Float_t nmean[kN1]; + + Double_t dz[kN2][kN1]; + Double_t dy[kN2][kN1]; + Int_t indexes[kN2][kN1]; // Indexes of the clusters in the road + Int_t best[kN2][kN1]; // Index of best matching cluster + AliTRDcluster *cl[kN2][kN1]; // Pointers to the clusters in the road + + Double_t xmean = 0.0; // Reference x + Int_t clfound = 0; + + // Initialize the arrays + for (Int_t it = 0; it < kN1; it++) { + + x[it] = 0.0; + yt[it] = 0.0; + zt[it] = 0.0; + clusters[it] = -2; + zmean[it] = 0.0; + nmean[it] = 0.0; + + for (Int_t ih = 0; ih < kN2; ih++) { + indexes[ih][it] = -2; + cl[ih][it] = 0; + dz[ih][it] = -100.0; + dy[ih][it] = -100.0; + best[ih][it] = 0; + } - Double_t x[100],yt[100],zt[100]; - Double_t xmean=0; //reference x - Double_t dz[10][100],dy[10][100]; - Float_t zmean[100], nmean[100]; - Int_t clfound=0; - Int_t indexes[10][100]; // indexes of the clusters in the road - AliTRDcluster *cl[10][100]; // pointers to the clusters in the road - Int_t best[10][100]; // index of best matching cluster - // - // + } - for (Int_t it=0;it<=t1-t0; it++){ - x[it]=0; - yt[it]=0; - zt[it]=0; - clusters[it+t0]=-2; - zmean[it]=0; - nmean[it]=0; - // - for (Int_t ih=0;ih<10;ih++){ - indexes[ih][it]=-2; //reset indexes1 - cl[ih][it]=0; - dz[ih][it]=-100; - dy[ih][it]=-100; - best[ih][it]=0; + Double_t x0 = track->GetX(); + Double_t sigmaz = TMath::Sqrt(TMath::Abs(track->GetSigmaZ2())); + Int_t nall = 0; + Int_t nfound = 0; + Double_t h01 = 0.0; + Int_t plane = -1; + Int_t detector = -1; + Float_t padlength = 0.0; + + AliTRDtrack track2(* track); + Float_t snpy = track->GetSnp(); + Float_t tany = TMath::Sqrt(snpy*snpy / (1.0 - snpy*snpy)); + if (snpy < 0.0) { + tany *= -1.0; + } + + Double_t sy2 = ExpectedSigmaY2(x0,track->GetTgl(),track->GetSignedPt()); + Double_t sz2 = ExpectedSigmaZ2(x0,track->GetTgl()); + Double_t road = 15.0 * TMath::Sqrt(track->GetSigmaY2() + sy2); + if (road > 6.0) { + road = 6.0; + } + + for (Int_t it = 0; it < t1-t0; it++) { + + Double_t maxChi2[2] = { fgkMaxChi2, fgkMaxChi2 }; + AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(it+t0)); + if (timeBin == 0) { + continue; // No indexes1 } - } - // - Double_t x0 = track->GetX(); - Double_t sigmaz = TMath::Sqrt(TMath::Abs(track->GetSigmaZ2())); - Int_t nall=0; - Int_t nfound=0; - Double_t h01 =0; - Int_t plane =-1; - Float_t padlength=0; - AliTRDtrack track2(*track); - Float_t snpy = track->GetSnp(); - Float_t tany = TMath::Sqrt(snpy*snpy/(1.-snpy*snpy)); - if (snpy<0) tany*=-1; - // - Double_t sy2=ExpectedSigmaY2(x0,track->GetTgl(),track->GetPt()); - Double_t sz2=ExpectedSigmaZ2(x0,track->GetTgl()); - Double_t road = 15.*sqrt(track->GetSigmaY2() + sy2); - if (road>6.) road=6.; - - // - for (Int_t it=0;itGetLayer(it+t0)); - if (timeBin==0) continue; // no indexes1 - Int_t maxn = timeBin; - x[it] = timeBin.GetX(); + + Int_t maxn = timeBin; + x[it] = timeBin.GetX(); track2.PropagateTo(x[it]); yt[it] = track2.GetY(); zt[it] = track2.GetZ(); - Double_t y=yt[it],z=zt[it]; - Double_t chi2 =1000000; + Double_t y = yt[it]; + Double_t z = zt[it]; + Double_t chi2 = 1000000.0; nall++; + // - // find 2 nearest cluster at given time bin + // Find 2 nearest cluster at given time bin // - // - for (Int_t i=timeBin.Find(y-road); iGetDetector(); - plane = fGeom->GetPlane(det); - padlength = TMath::Sqrt(c->GetSigmaZ2()*12.); + if (plane < 0) { + Int_t det = c->GetDetector(); + plane = fGeom->GetPlane(det); + padlength = TMath::Sqrt(c->GetSigmaZ2() * 12.0); + } + + if (c->GetY() > (y + road)) { + break; + } + + fHDeltaX->Fill(c->GetX() - x[it]); + + if (TMath::Abs(c->GetY()-y) < TMath::Abs(minY)) { + minY = c->GetY() - y; + minD[0] = c->GetY() - y; + minD[1] = c->GetZ() - z; + } + + checkPoint[0]++; + + fHMinZ->Fill(c->GetZ() - z); + if ((c->GetZ() - z) * (c->GetZ() - z) > 2 * (12.0 * sz2)) { + continue; + } + checkPoint[1]++; + + Double_t dist = TMath::Abs(c->GetZ() - z); + if (dist > (0.5 * padlength + 6.0 * sigmaz)) { + continue; // 6 sigma boundary cut + } + checkPoint[2]++; + + // Sigma boundary cost function + Double_t cost = 0.0; + if (dist> (0.5 * padlength - sigmaz)){ + cost = (dist - 0.5*padlength) / (2.0 * sigmaz); + if (cost > -1) { + cost = (cost + 1.0) * (cost + 1.0); + } + else { + cost = 0.0; + } } - // if (c->GetLocalTimeBin()==0) continue; - if (c->GetY() > y+road) break; - if((c->GetZ()-z)*(c->GetZ()-z) > 12. * sz2) continue; - - Double_t dist = TMath::Abs(c->GetZ()-z); - if (dist> (0.5*padlength+6.*sigmaz)) continue; // 6 sigma boundary cut - Double_t cost = 0; - // - if (dist> (0.5*padlength-sigmaz)){ // sigma boundary cost function - cost = (dist-0.5*padlength)/(2.*sigmaz); - if (cost>-1) cost= (cost+1.)*(cost+1.); - else cost=0; - } - // Int_t label = TMath::Abs(track->GetLabel()); - // if (c->GetLabel(0)!=label && c->GetLabel(1)!=label&&c->GetLabel(2)!=label) continue; - chi2=track2.GetPredictedChi2(c,h01)+cost; - // + chi2 = track2.GetPredictedChi2(c,h01) + cost; clfound++; - if (chi2 > maxChi2[1]) continue; - - for (Int_t ih=2;ih<9; ih++){ //store the clusters in the road - if (cl[ih][it]==0){ - cl[ih][it] = c; - indexes[ih][it] =timeBin.GetIndex(i); // index - 9 - reserved for outliers + + if (chi2 > maxChi2[1]) { + continue; + } + checkPoint[3]++; + + // Store the clusters in the road + detector = c->GetDetector(); + for (Int_t ih = 2; ih < 9; ih++) { + if (cl[ih][it] == 0) { + cl[ih][it] = c; + indexes[ih][it] = timeBin.GetIndex(i); // Index - 9 - reserved for outliers break; } } - // - if (chi2 Fill(checkPoint[iCheckPoint]); + } + + if (checkPoint[3]) { + if (track->GetSignedPt() > 0) { + fHMinYPos->Fill(minY); + } + else { + fHMinYNeg->Fill(minY); + } + fHMinD->Fill(minD[0],minD[1]); + } + + if (cl[0][it]) { nfound++; xmean += x[it]; } + + } + + if (nfound < 4) { + return 0; } + xmean /= Float_t(nfound); // Middle x + track2.PropagateTo(xmean); // Propagate track to the center + // - if (nfound<4) return 0; - xmean /=Float_t(nfound); // middle x - track2.PropagateTo(xmean); // propagate track to the center - // - // choose one of the variants - // - Int_t changes[10]; - Float_t sumz = 0; - Float_t sum = 0; - Double_t sumdy = 0; - Double_t sumdy2 = 0; - Double_t sumx = 0; - Double_t sumxy = 0; - Double_t sumx2 = 0; - Double_t mpads = 0; - // - Int_t ngood[10]; - Int_t nbad[10]; - // - Double_t meanz[10]; - Double_t moffset[10]; // mean offset - Double_t mean[10]; // mean value - Double_t angle[10]; // angle - // - Double_t smoffset[10]; // sigma of mean offset - Double_t smean[10]; // sigma of mean value - Double_t sangle[10]; // sigma of angle - Double_t smeanangle[10]; // correlation - // - Double_t sigmas[10]; - Double_t tchi2s[10]; // chi2s for tracklet - // - // calculate zmean - // - for (Int_t it=0;itt1-t0) continue; - if (!cl[0][it+dt]) continue; - zmean[it]+=cl[0][it+dt]->GetZ(); - nmean[it]+=1.; - } - zmean[it]/=nmean[it]; - } - // - for (Int_t it=0; itGetX(); - Double_t ytrack,ztrack; - track2.GetProlongation(xcluster, ytrack, ztrack ); - dz[ih][it] = cl[ih][it]->GetZ()- ztrack; // calculate distance from track in z - dy[ih][it] = cl[ih][it]->GetY()+ dz[ih][it]*h01 -ytrack; // in y - } - // minimize changes - if (!cl[0][it]) continue; - if (TMath::Abs(cl[0][it]->GetZ()-zmean[it])> padlength*0.8 &&cl[1][it]) - if (TMath::Abs(cl[1][it]->GetZ()-zmean[it])< padlength*0.5){ - best[0][it]=1; - } + // Choose one of the variants + // + Float_t sumz = 0.0; + Float_t sum = 0.0; + Double_t sumdy = 0.0; + Double_t sumdy2 = 0.0; + Double_t sumx = 0.0; + Double_t sumxy = 0.0; + Double_t sumx2 = 0.0; + Double_t mpads = 0.0; + + Int_t changes[kN2]; + + Int_t ngood[kN2]; + Int_t nbad[kN2]; + + Double_t meanz[kN2]; + Double_t moffset[kN2]; // Mean offset + Double_t mean[kN2]; // Mean value + Double_t angle[kN2]; // Angle + + Double_t smoffset[kN2]; // Sigma of mean offset + Double_t smean[kN2]; // Sigma of mean value + Double_t sangle[kN2]; // Sigma of angle + Double_t smeanangle[kN2]; // Correlation + + Double_t sigmas[kN2]; + Double_t tchi2s[kN2]; // Chi2s for tracklet + + for (Int_t it = 0; it < kN2; it++) { + + ngood[it] = 0; + nbad[it] = 0; + + meanz[it] = 0.0; + moffset[it] = 0.0; // Mean offset + mean[it] = 0.0; // Mean value + angle[it] = 0.0; // Angle + + smoffset[it] = 1.0e5; // Sigma of mean offset + smean[it] = 1.0e5; // Sigma of mean value + sangle[it] = 1.0e5; // Sigma of angle + smeanangle[it] = 0.0; // Correlation + + sigmas[it] = 1.0e5; + tchi2s[it] = 1.0e5; // Chi2s for tracklet + } + // - // iterative choosing of "best path" + // Calculate zmean // + for (Int_t it = 0; it < t1 - t0; it++) { + if (!cl[0][it]) { + continue; + } + for (Int_t dt = -3; dt <= 3; dt++) { + if (it+dt < 0) { + continue; + } + if (it+dt > t1-t0) { + continue; + } + if (!cl[0][it+dt]) { + continue; + } + zmean[it] += cl[0][it+dt]->GetZ(); + nmean[it] += 1.0; + } + zmean[it] /= nmean[it]; + } + + for (Int_t it = 0; it < t1 - t0; it++) { + + best[0][it] = 0; + + for (Int_t ih = 0; ih < 10; ih++) { + dz[ih][it] = -100.0; + dy[ih][it] = -100.0; + if (!cl[ih][it]) { + continue; + } + Double_t xcluster = cl[ih][it]->GetX(); + Double_t ytrack; + Double_t ztrack; + track2.GetProlongation(xcluster,ytrack,ztrack ); + dz[ih][it] = cl[ih][it]->GetZ()- ztrack; // Calculate distance from track in z + dy[ih][it] = cl[ih][it]->GetY() + dz[ih][it]*h01 - ytrack; // and in y + } + + // Minimize changes + if (!cl[0][it]) { + continue; + } + if ((TMath::Abs(cl[0][it]->GetZ()-zmean[it]) > padlength * 0.8) && + (cl[1][it])) { + if (TMath::Abs(cl[1][it]->GetZ()-zmean[it]) < padlength * 0.5) { + best[0][it] = 1; + } + } + + } + // - Int_t label = TMath::Abs(track->GetLabel()); - Int_t bestiter=0; + // Iterative choice of "best path" // - for (Int_t iter=0;iter<9;iter++){ - // - changes[iter]= 0; - sumz = 0; sum=0; sumdy=0;sumdy2=0;sumx=0;sumx2=0;sumxy=0;mpads=0; ngood[iter]=0; nbad[iter]=0; - // linear fit - for (Int_t it=0;itGetZ(); - Double_t zafter = cl[best[iter][it]][it]->GetZ(); - for (Int_t itd = it-1; itd>=0;itd--) { + Int_t label = TMath::Abs(track->GetLabel()); + Int_t bestiter = 0; + + for (Int_t iter = 0; iter < 9; iter++) { + + changes[iter] = 0; + sumz = 0; + sum = 0; + sumdy = 0; + sumdy2 = 0; + sumx = 0; + sumx2 = 0; + sumxy = 0; + mpads = 0; + ngood[iter] = 0; + nbad[iter] = 0; + + // Linear fit + for (Int_t it = 0; it < t1 - t0; it++) { + + if (!cl[best[iter][it]][it]) { + continue; + } + + // Calculates pad-row changes + Double_t zbefore = cl[best[iter][it]][it]->GetZ(); + Double_t zafter = cl[best[iter][it]][it]->GetZ(); + for (Int_t itd = it - 1; itd >= 0; itd--) { if (cl[best[iter][itd]][itd]) { - zbefore= cl[best[iter][itd]][itd]->GetZ(); + zbefore = cl[best[iter][itd]][itd]->GetZ(); break; } } - for (Int_t itd = it+1; itdGetZ(); + zafter = cl[best[iter][itd]][itd]->GetZ(); break; } } - if (TMath::Abs(cl[best[iter][it]][it]->GetZ()-zbefore)>0.1&&TMath::Abs(cl[best[iter][it]][it]->GetZ()-zafter)>0.1) changes[iter]++; - // - Double_t dx = x[it]-xmean; // distance to reference x - sumz += cl[best[iter][it]][it]->GetZ(); + if ((TMath::Abs(cl[best[iter][it]][it]->GetZ()-zbefore) > 0.1) && + (TMath::Abs(cl[best[iter][it]][it]->GetZ()- zafter) > 0.1)) { + changes[iter]++; + } + + // Distance to reference x + Double_t dx = x[it]-xmean; + sumz += cl[best[iter][it]][it]->GetZ(); sum++; - sumdy += dy[best[iter][it]][it]; - sumdy2+= dy[best[iter][it]][it]*dy[best[iter][it]][it]; - sumx += dx; - sumx2 += dx*dx; + sumdy += dy[best[iter][it]][it]; + sumdy2 += dy[best[iter][it]][it]*dy[best[iter][it]][it]; + sumx += dx; + sumx2 += dx*dx; sumxy += dx*dy[best[iter][it]][it]; - mpads += cl[best[iter][it]][it]->GetNPads(); - if (cl[best[iter][it]][it]->GetLabel(0)==label || cl[best[iter][it]][it]->GetLabel(1)==label||cl[best[iter][it]][it]->GetLabel(2)==label){ + mpads += cl[best[iter][it]][it]->GetNPads(); + if ((cl[best[iter][it]][it]->GetLabel(0) == label) || + (cl[best[iter][it]][it]->GetLabel(1) == label) || + (cl[best[iter][it]][it]->GetLabel(2) == label)) { ngood[iter]++; } - else{ + else { nbad[iter]++; } + } + // - // calculates line parameters - // - Double_t det = sum*sumx2-sumx*sumx; - angle[iter] = (sum*sumxy-sumx*sumdy)/det; - mean[iter] = (sumx2*sumdy-sumx*sumxy)/det; - meanz[iter] = sumz/sum; - moffset[iter] = sumdy/sum; - mpads /= sum; // mean number of pads - // - // - Double_t sigma2 = 0; // normalized residuals - for line fit - Double_t sigma1 = 0; // normalized residuals - constant fit + // Calculates line parameters // - for (Int_t it=0;itGetSigmaY2(); - Double_t weighty = (moffset[iter]/sigmatr2)/sweight; // weighted mean - Double_t sigmacl = TMath::Sqrt(sigma1*sigma1+track->GetSigmaY2()); // - Double_t mindist=100000; - Int_t ihbest=0; - for (Int_t ih=0;ih<10;ih++){ - if (!cl[ih][it]) break; - Double_t dist2 = (dy[ih][it]-weighty)/sigmacl; - dist2*=dist2; //chi2 distance - if (dist2GetSigmaY2(); + Double_t weighty = (moffset[iter] / sigmatr2) / sweight; // Weighted mean + Double_t sigmacl = TMath::Sqrt(sigma1*sigma1 + track->GetSigmaY2()); + Double_t mindist = 100000.0; + Int_t ihbest = 0; + + for (Int_t ih = 0; ih < kN2; ih++) { + if (!cl[ih][it]) { + break; + } + Double_t dist2 = (dy[ih][it] - weighty) / sigmacl; + dist2 *= dist2; // Chi2 distance + if (dist2 < mindist) { mindist = dist2; - ihbest =ih; + ihbest = ih; } } - best[iter+1][it]=ihbest; + + best[iter+1][it] = ihbest; + } + // - // update best hypothesy if better chi2 according tracklet position and angle + // Update best hypothesy if better chi2 according tracklet position and angle // Double_t sy2 = smean[iter] + track->GetSigmaY2(); - Double_t sa2 = sangle[iter] + track->fCee; - Double_t say = track->fCey; - // Double_t chi20 = mean[bestiter]*mean[bestiter]/sy2+angle[bestiter]*angle[bestiter]/sa2; - // Double_t chi21 = mean[iter]*mean[iter]/sy2+angle[iter]*angle[iter]/sa2; + Double_t sa2 = sangle[iter] + track->GetSigmaSnp2(); // track->fCee; + Double_t say = track->GetSigmaSnpY(); // track->fCey; - Double_t detchi = sy2*sa2-say*say; - Double_t invers[3] = {sa2/detchi, sy2/detchi, -say/detchi}; //inverse value of covariance matrix + Double_t detchi = sy2*sa2 - say*say; + Double_t invers[3] = {sa2/detchi,sy2/detchi,-say/detchi}; // Inverse value of covariance matrix - Double_t chi20 = mean[bestiter]*mean[bestiter]*invers[0]+angle[bestiter]*angle[bestiter]*invers[1]+ - 2.*mean[bestiter]*angle[bestiter]*invers[2]; - Double_t chi21 = mean[iter]*mean[iter]*invers[0]+angle[iter]*angle[iter]*invers[1]+ - 2*mean[iter]*angle[iter]*invers[2]; - tchi2s[iter] =chi21; - // - if (changes[iter]<=changes[bestiter] && chi2125.) sigma2*=tchi2s[bestiter]/25.; - //if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept - - Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(AliTRDcalibDB::Instance()->GetVdrift(0,0,0)); - Double_t expectederr = sigma2*sigma2+0.01*0.01; - if (mpads>3.5) expectederr += (mpads-3.5)*0.04; - if (changes[bestiter]>1) expectederr+= changes[bestiter]*0.01; - expectederr+=(0.03*(tany-exB)*(tany-exB))*15; - // if (tchi2s[bestiter]>18.) expectederr*= tchi2s[bestiter]/18.; - //expectederr+=10000; - for (Int_t it=0;itSetSigmaY2(expectederr); // set cluster error - if (!cl[best[bestiter][it]][it]->IsUsed()){ - cl[best[bestiter][it]][it]->SetY( cl[best[bestiter][it]][it]->GetY()); - // cl[best[bestiter][it]][it]->Use(); + Double_t chi20 = mean[bestiter] * mean[bestiter] * invers[0] + + angle[bestiter] * angle[bestiter] * invers[1] + + 2.0 * mean[bestiter] * angle[bestiter] * invers[2]; + Double_t chi21 = mean[iter] * mean[iter] * invers[0] + + angle[iter] * angle[iter] * invers[1] + + 2.0 * mean[iter] * angle[iter] * invers[2]; + tchi2s[iter] = chi21; + + if ((changes[iter] <= changes[bestiter]) && + (chi21 < chi20)) { + bestiter = iter; } - // - // time bins with maximal charge - if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge){ + + } + + // + // Set clusters + // + Double_t sigma2 = sigmas[0]; // Choose as sigma from 0 iteration + Short_t maxpos = -1; + Float_t maxcharge = 0.0; + Short_t maxpos4 = -1; + Float_t maxcharge4 = 0.0; + Short_t maxpos5 = -1; + Float_t maxcharge5 = 0.0; + + Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(AliTRDcalibDB::Instance()->GetVdrift(0,0,0) + ,-AliTracker::GetBz()*0.1); + Double_t expectederr = sigma2*sigma2 + 0.01*0.01; + if (mpads > 3.5) { + expectederr += (mpads - 3.5) * 0.04; + } + if (changes[bestiter] > 1) { + expectederr += changes[bestiter] * 0.01; + } + expectederr += (0.03 * (tany-exB)*(tany-exB)) * 15.0; + + for (Int_t it = 0; it < t1 - t0; it++) { + + if (!cl[best[bestiter][it]][it]) { + continue; + } + + // Set cluster error + cl[best[bestiter][it]][it]->SetSigmaY2(expectederr); + if (!cl[best[bestiter][it]][it]->IsUsed()) { + cl[best[bestiter][it]][it]->SetY(cl[best[bestiter][it]][it]->GetY()); + } + + // Time bins with maximal charge + if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); - maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); + maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); } - if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge4){ - if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>=4){ + if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { + if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); - maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); + maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); } } - if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge5){ - if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>=5){ + + if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { + if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); - maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); + maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); } } - // - // time bins with maximal charge - if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge){ + + // Time bins with maximal charge + if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) { maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); - maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); + maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin(); } - if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge4){ - if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>=4){ + if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) { + if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) { maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); - maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); + maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); } } - if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge5){ - if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>=5){ + + if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) { + if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) { maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ()); - maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); + maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin(); } } + clusters[it+t0] = indexes[best[bestiter][it]][it]; - //if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>4 && cl[best[bestiter][it]][it]->GetLocalTimeBin()<18) clusters[it+t0] = indexes[best[bestiter][it]][it]; //Test + } - // - // set tracklet parameters - // - Double_t trackleterr2 = smoffset[bestiter]+0.01*0.01; - if (mpads>3.5) trackleterr2 += (mpads-3.5)*0.04; - trackleterr2+= changes[bestiter]*0.01; - trackleterr2*= TMath::Max(14.-nfound,1.); - trackleterr2+= 0.2*(tany-exB)*(tany-exB); - // - tracklet.Set(xmean, track2.GetY()+moffset[bestiter], meanz[bestiter], track2.GetAlpha(), trackleterr2); //set tracklet parameters + + // Set tracklet parameters + Double_t trackleterr2 = smoffset[bestiter] + 0.01*0.01; + if (mpads > 3.5) { + trackleterr2 += (mpads - 3.5) * 0.04; + } + trackleterr2 += changes[bestiter] * 0.01; + trackleterr2 *= TMath::Max(14.0 - nfound,1.0); + trackleterr2 += 0.2 * (tany-exB)*(tany-exB); + + tracklet.Set(xmean + ,track2.GetY() + moffset[bestiter] + ,meanz[bestiter] + ,track2.GetAlpha() + ,trackleterr2); tracklet.SetTilt(h01); tracklet.SetP0(mean[bestiter]); tracklet.SetP1(angle[bestiter]); @@ -3058,27 +3885,28 @@ Int_t AliTRDtracker::FindClusters(Int_t sector, Int_t t0, Int_t t1, AliTRDtrack tracklet.SetSigma2(expectederr); tracklet.SetChi2(tchi2s[bestiter]); tracklet.SetMaxPos(maxpos,maxpos4,maxpos5); - track->fTracklets[plane] = tracklet; - track->fNWrong+=nbad[0]; + track->SetTracklets(plane,tracklet); + track->SetNWrong(track->GetNWrong() + nbad[0]); + // // Debuging part // TClonesArray array0("AliTRDcluster"); TClonesArray array1("AliTRDcluster"); - array0.ExpandCreateFast(t1-t0+1); - array1.ExpandCreateFast(t1-t0+1); - TTreeSRedirector& cstream = *fDebugStreamer; + array0.ExpandCreateFast(t1 - t0 + 1); + array1.ExpandCreateFast(t1 - t0 + 1); + TTreeSRedirector &cstream = *fDebugStreamer; AliTRDcluster dummy; Double_t dy0[100]; Double_t dyb[100]; - for (Int_t it=0;it 0) { + cstream << "tracklet" + << "track.=" << track // Track parameters + << "tany=" << tany // Tangent of the local track angle + << "xmean=" << xmean // Xmean - reference x of tracklet + << "tilt=" << h01 // Tilt angle + << "nall=" << nall // Number of foundable clusters + << "nfound=" << nfound // Number of found clusters + << "clfound=" << clfound // Total number of found clusters in road + << "mpads=" << mpads // Mean number of pads per cluster + << "plane=" << plane // Plane number + << "detector=" << detector // Detector number + << "road=" << road // The width of the used road + << "graph0.=" << &graph0 // x - y = dy for closest cluster + << "graph1.=" << &graph1 // x - y = dy for second closest cluster + << "graphy.=" << &graphy // y position of the track + << "graphz.=" << &graphz // z position of the track + //<< "fCl.=" << &array0 // closest cluster + //<< "fCl2.=" << &array1 // second closest cluster + << "maxpos=" << maxpos // Maximal charge postion + << "maxcharge=" << maxcharge // Maximal charge + << "maxpos4=" << maxpos4 // Maximal charge postion - after bin 4 + << "maxcharge4=" << maxcharge4 // Maximal charge - after bin 4 + << "maxpos5=" << maxpos5 // Maximal charge postion - after bin 5 + << "maxcharge5=" << maxcharge5 // Maximal charge - after bin 5 + << "bestiter=" << bestiter // Best iteration number + << "tracklet.=" << &tracklet // Corrspond to the best iteration + << "tchi20=" << tchi2s[0] // Chi2 of cluster in the 0 iteration + << "tchi2b=" << tchi2s[bestiter] // Chi2 of cluster in the best iteration + << "sigmas0=" << sigmas[0] // Residuals sigma + << "sigmasb=" << sigmas[bestiter] // Residulas sigma + << "ngood0=" << ngood[0] // Number of good clusters in 0 iteration + << "nbad0=" << nbad[0] // Number of bad clusters in 0 iteration + << "ngoodb=" << ngood[bestiter] // in best iteration + << "nbadb=" << nbad[bestiter] // in best iteration + << "changes0=" << changes[0] // Changes of pardrows in iteration number 0 + << "changesb=" << changes[bestiter] // Changes of pardrows in best iteration + << "moffset0=" << moffset[0] // Offset fixing angle in iter=0 + << "smoffset0=" << smoffset[0] // Sigma of offset fixing angle in iter=0 + << "moffsetb=" << moffset[bestiter] // Offset fixing angle in iter=best + << "smoffsetb=" << smoffset[bestiter] // Sigma of offset fixing angle in iter=best + << "mean0=" << mean[0] // Mean dy in iter=0; + << "smean0=" << smean[0] // Sigma of mean dy in iter=0 + << "meanb=" << mean[bestiter] // Mean dy in iter=best + << "smeanb=" << smean[bestiter] // Sigma of mean dy in iter=best + << "angle0=" << angle[0] // Angle deviation in the iteration number 0 + << "sangle0=" << sangle[0] // Sigma of angular deviation in iteration number 0 + << "angleb=" << angle[bestiter] // Angle deviation in the best iteration + << "sangleb=" << sangle[bestiter] // Sigma of angle deviation in the best iteration + << "expectederr=" << expectederr // Expected error of cluster position + << "\n"; + } + return nfound; -} +} -Int_t AliTRDtracker::Freq(Int_t n, const Int_t *inlist, Int_t *outlist, Bool_t down) +//_____________________________________________________________________________ +Int_t AliTRDtracker::Freq(Int_t n, const Int_t *inlist + , Int_t *outlist, Bool_t down) { // - // Sort eleements according occurancy - // The size of output array has is 2*n - // - Int_t * sindexS = new Int_t[n]; // temp array for sorting - Int_t * sindexF = new Int_t[2*n]; - for (Int_t i=0;i0;itime--){ - if (seeds[ilayer].fIndexes[itime]>0){ - index = seeds[ilayer].fIndexes[itime]; - cl = seeds[ilayer].fClusters[itime]; + + c[ 0] = 0.2; + c[ 1] = 0.0; c[ 2] = 2.0; + c[ 3] = 0.0; c[ 4] = 0.0; c[ 5] = 0.02; + c[ 6] = 0.0; c[ 7] = 0.0; c[ 8] = 0.0; c[ 9] = 0.1; + c[10] = 0.0; c[11] = 0.0; c[12] = 0.0; c[13] = 0.0; c[14] = params[5]*params[5]*0.01; + + Int_t index = 0; + AliTRDcluster *cl = 0; + + for (Int_t ilayer = 0; ilayer < 6; ilayer++) { + if (seeds[ilayer].IsOK()) { + for (Int_t itime = 22; itime > 0; itime--) { + if (seeds[ilayer].GetIndexes(itime) > 0) { + index = seeds[ilayer].GetIndexes(itime); + cl = seeds[ilayer].GetClusters(itime); break; } } } - if (index>0) break; + if (index > 0) { + break; + } + } + if (cl == 0) { + return 0; } - if (cl==0) return 0; - AliTRDtrack * track = new AliTRDtrack(cl,index,¶ms[1],c, params[0],params[6]*alpha+shift); - track->PropagateTo(params[0]-5.); + + AliTRDtrack *track = new AliTRDtrack(cl + ,index + ,¶ms[1] + ,c + ,params[0] + ,params[6]*alpha+shift); + // SetCluster(cl, 0); // A. Bercuci + track->PropagateTo(params[0]-5.0); track->ResetCovariance(1); - // - Int_t rc=FollowBackProlongation(*track); - if (rc<30) { + + Int_t rc = FollowBackProlongation(*track); + if (rc < 30) { delete track; - track =0; - }else{ + track = 0; + } + else { track->CookdEdx(); - CookdEdxTimBin(*track); - CookLabel(track, 0.9); + track->CookdEdxTimBin(-1); + CookLabel(track,0.9); } - return track; -} - - - + return track; - -AliTRDseed::AliTRDseed() -{ - // - // - fTilt =0; // tilting angle - fPadLength = 0; // pad length - fX0 = 0; // x0 position - for (Int_t i=0;i<25;i++){ - fX[i]=0; // !x position - fY[i]=0; // !y position - fZ[i]=0; // !z position - fIndexes[i]=0; // !indexes - fClusters[i]=0; // !clusters - } - for (Int_t i=0;i<2;i++){ - fYref[i]=0; // reference y - fZref[i]=0; // reference z - fYfit[i]=0; // y fit position +derivation - fYfitR[i]=0; // y fit position +derivation - fZfit[i]=0; // z fit position - fZfitR[i]=0; // z fit position - fLabels[i]=0; // labels - } - fSigmaY = 0; - fSigmaY2 = 0; - fMeanz=0; // mean vaue of z - fZProb=0; // max probbable z - fMPads=0; - // - fN=0; // number of associated clusters - fN2=0; // number of not crossed - fNUsed=0; // number of used clusters - fNChange=0; // change z counter -} - -void AliTRDseed::Reset(){ - // - // reset seed - // - for (Int_t i=0;i<25;i++){ - fX[i]=0; // !x position - fY[i]=0; // !y position - fZ[i]=0; // !z position - fIndexes[i]=0; // !indexes - fClusters[i]=0; // !clusters - fUsable[i] = kFALSE; - } - for (Int_t i=0;i<2;i++){ - fYref[i]=0; // reference y - fZref[i]=0; // reference z - fYfit[i]=0; // y fit position +derivation - fYfitR[i]=0; // y fit position +derivation - fZfit[i]=0; // z fit position - fZfitR[i]=0; // z fit position - fLabels[i]=-1; // labels - } - fSigmaY =0; //"robust" sigma in y - fSigmaY2=0; //"robust" sigma in y - fMeanz =0; // mean vaue of z - fZProb =0; // max probbable z - fMPads =0; - // - fN=0; // number of associated clusters - fN2=0; // number of not crossed - fNUsed=0; // number of used clusters - fNChange=0; // change z counter } -void AliTRDseed::CookLabels(){ +//_____________________________________________________________________________ +void AliTRDtracker::InitLogHists() +{ // - // cook 2 labels for seed + // Create the log histograms // - Int_t labels[200]; - Int_t out[200]; - Int_t nlab =0; - for (Int_t i=0;i<25;i++){ - if (!fClusters[i]) continue; - for (Int_t ilab=0;ilab<3;ilab++){ - if (fClusters[i]->GetLabel(ilab)>=0){ - labels[nlab] = fClusters[i]->GetLabel(ilab); - nlab++; - } - } + + fHBackfit = new TH1D("logTRD_backfit" ,"" + , 40,-0.5, 39.5); + fHRefit = new TH1D("logTRD_refit" ,"" + , 40,-0.5, 39.5); + fHClSearch = new TH1D("logTRD_clSearch","" + , 60,-0.5, 59.5); + + fHX = new TH1D("logTRD_X" ,";x (cm)" + , 200, 50, 400); + fHNCl = new TH1D("logTRD_ncl" ,"" + , 40,-0.5, 39.5); + fHNClTrack = new TH1D("logTRD_nclTrack","" + , 180,-0.5,179.5); + + fHMinYPos = new TH1D("logTRD_minYPos" ,";#delta Y (cm)" + , 400, -6, 6); + fHMinYNeg = new TH1D("logTRD_minYNeg" ,";#delta Y (cm)" + , 400, -6, 6); + fHMinZ = new TH1D("logTRD_minZ" ,";#delta Z (cm)" + , 400, -20, 20); + fHMinD = new TH2D("logTRD_minD" ,";#delta Y (cm);#delta Z (cm)" + , 100, -6, 6 + , 100, -50, 50); + + fHDeltaX = new TH1D("logTRD_deltaX" ,";#delta X (cm)" + , 100, -5, 5); + fHXCl = new TH1D("logTRD_xCl" ,";cluster x position (cm)" + ,1000, 280, 380); + + const Char_t *nameFindCl[4] = { "logTRD_clY" + , "logTRD_clZ" + , "logTRD_clB" + , "logTRD_clG" }; + + for (Int_t i = 0; i < 4; i++) { + fHFindCl[i] = new TH1D(nameFindCl[i],"",30,-0.5,29.5); } - Int_t nlab2 = AliTRDtracker::Freq(nlab,labels,out,kTRUE); - fLabels[0] = out[0]; - if (nlab2>1 && out[3]>1) fLabels[1] =out[2]; + } -void AliTRDseed::UseClusters() +//_____________________________________________________________________________ +void AliTRDtracker::SaveLogHists() { // - // use clusters + // Save the log histograms in AliESDs.root // - for (Int_t i=0;i<25;i++){ - if (!fClusters[i]) continue; - if (!(fClusters[i]->IsUsed())) fClusters[i]->Use(); - } -} + TDirectory *sav = gDirectory; + TFile *logFile = 0; -void AliTRDseed::Update(){ - // - // - // - const Float_t ratio = 0.8; - const Int_t kClmin = 6; - const Float_t kmaxtan = 2; - if (TMath::Abs(fYref[1])>kmaxtan) return; // too much inclined track - // - Float_t sigmaexp = 0.05+TMath::Abs(fYref[1]*0.25); // expected r.m.s in y direction - Float_t ycrosscor = fPadLength*fTilt*0.5; // y correction for crossing - fNChange =0; - // - Double_t sumw, sumwx,sumwx2; - Double_t sumwy, sumwxy, sumwz,sumwxz; - Int_t zints[25]; // histograming of the z coordinate - get 1 and second max probable coodinates in z - Int_t zouts[50]; // - Float_t allowedz[25]; // allowed z for given time bin - Float_t yres[25]; // residuals from reference - Float_t anglecor = fTilt*fZref[1]; //correction to the angle - // - // - fN=0; fN2 =0; - for (Int_t i=0;i<25;i++){ - yres[i] =10000; - if (!fClusters[i]) continue; - yres[i] = fY[i]-fYref[0]-(fYref[1]+anglecor)*fX[i]; // residual y - zints[fN] = Int_t(fZ[i]); - fN++; - } - if (fN12.) zouts[3]=0; // z distance bigger than pad - length - // - Int_t breaktime = -1; - Bool_t mbefore = kFALSE; - Int_t cumul[25][2]; - Int_t counts[2]={0,0}; - // - if (zouts[3]>=3){ - // - // find the break time allowing one chage on pad-rows with maximal numebr of accepted clusters - // - fNChange=1; - for (Int_t i=0;i<25;i++){ - cumul[i][0] = counts[0]; - cumul[i][1] = counts[1]; - if (TMath::Abs(fZ[i]-zouts[0])<2) counts[0]++; - if (TMath::Abs(fZ[i]-zouts[2])<2) counts[1]++; - } - Int_t maxcount = 0; - for (Int_t i=0;i<24;i++) { - Int_t after = cumul[24][0]-cumul[i][0]; - Int_t before = cumul[i][1]; - if (after+before>maxcount) { - maxcount=after+before; - breaktime=i; - mbefore=kFALSE; - } - after = cumul[24][1]-cumul[i][1]; - before = cumul[i][0]; - if (after+before>maxcount) { - maxcount=after+before; - breaktime=i; - mbefore=kTRUE; - } - } - breaktime-=1; - } - for (Int_t i=0;i<25;i++){ - if (i>breaktime) allowedz[i] = mbefore ? zouts[2]:zouts[0]; - if (i<=breaktime) allowedz[i] = (!mbefore) ? zouts[2]:zouts[0]; - } - if ( (allowedz[0]>allowedz[24] && fZref[1]<0) || (allowedz[0]0)){ - // - // tracklet z-direction not in correspondance with track z direction - // - fNChange =0; - for (Int_t i=0;i<25;i++){ - allowedz[i] = zouts[0]; //only longest taken - } - } - // - if (fNChange>0){ - // - // cross pad -row tracklet - take the step change into account - // - for (Int_t i=0;i<25;i++){ - if (!fClusters[i]) continue; - if (TMath::Abs(fZ[i]-allowedz[i])>2) continue; - yres[i] = fY[i]-fYref[0]-(fYref[1]+anglecor)*fX[i]; // residual y - if (TMath::Abs(fZ[i]-fZProb)>2){ - if (fZ[i]>fZProb) yres[i]+=fTilt*fPadLength; - if (fZ[i]GetListOfFiles(); + Int_t nn = col->GetEntries(); + for (Int_t i = 0; i < nn; i++) { + logFile = (TFile *) col->At(i); + if (strstr(logFile->GetName(),"AliESDs.root")) { + break; } } - // - Double_t yres2[25]; - Double_t mean,sigma; - for (Int_t i=0;i<25;i++){ - if (!fClusters[i]) continue; - if (TMath::Abs(fZ[i]-allowedz[i])>2) continue; - yres2[fN2] = yres[i]; - fN2++; - } - if (fN22) continue; - if (TMath::Abs(yres[i]-mean)>4.*sigma) continue; - fUsable[i] = kTRUE; - fN2++; - fMPads+=fClusters[i]->GetNPads(); - Float_t weight =1; - if (fClusters[i]->GetNPads()>4) weight=0.5; - if (fClusters[i]->GetNPads()>5) weight=0.2; - // - Double_t x = fX[i]; - sumw+=weight; sumwx+=x*weight; sumwx2+=x*x*weight; - sumwy+=weight*yres[i]; sumwxy+=weight*(yres[i])*x; - sumwz+=weight*fZ[i]; sumwxz+=weight*fZ[i]*x; - } - if (fN20){ - // tracklet on boundary - if (fMeanzfZProb) correction = -ycrosscor; - } - Double_t det = sumw*sumwx2-sumwx*sumwx; - fYfitR[0] = (sumwx2*sumwy-sumwx*sumwxy)/det; - fYfitR[1] = (sumw*sumwxy-sumwx*sumwy)/det; - // - fSigmaY2 =0; - for (Int_t i=0;i<25;i++){ - if (!fUsable[i]) continue; - Float_t delta = yres[i]-fYfitR[0]-fYfitR[1]*fX[i]; - fSigmaY2+=delta*delta; - } - fSigmaY2 = TMath::Sqrt(fSigmaY2/Float_t(fN2-2)); - // - fZfitR[0] = (sumwx2*sumwz-sumwx*sumwxz)/det; - fZfitR[1] = (sumw*sumwxz-sumwx*sumwz)/det; - fZfit[0] = (sumwx2*sumwz-sumwx*sumwxz)/det; - fZfit[1] = (sumw*sumwxz-sumwx*sumwz)/det; - fYfitR[0] += fYref[0]+correction; - fYfitR[1] += fYref[1]; - fYfit[0] = fYfitR[0]; - fYfit[1] = fYfitR[1]; - // - // - UpdateUsed(); -} - - - - - + + logFile->cd(); + + fHBackfit->Write(fHBackfit->GetName(),TObject::kOverwrite); + fHRefit->Write(fHRefit->GetName(),TObject::kOverwrite); + fHClSearch->Write(fHClSearch->GetName(),TObject::kOverwrite); + fHX->Write(fHX->GetName(),TObject::kOverwrite); + fHNCl->Write(fHNCl->GetName(),TObject::kOverwrite); + fHNClTrack->Write(fHNClTrack->GetName(),TObject::kOverwrite); + + fHMinYPos->Write(fHMinYPos->GetName(),TObject::kOverwrite); + fHMinYNeg->Write(fHMinYNeg->GetName(),TObject::kOverwrite); + fHMinD->Write(fHMinD->GetName(),TObject::kOverwrite); + fHMinZ->Write(fHMinZ->GetName(),TObject::kOverwrite); + + fHDeltaX->Write(fHDeltaX->GetName(),TObject::kOverwrite); + fHXCl->Write(fHXCl->GetName(),TObject::kOverwrite); -void AliTRDseed::UpdateUsed(){ - // - fNUsed =0; - for (Int_t i=0;i<25;i++){ - if (!fClusters[i]) continue; - if ((fClusters[i]->IsUsed())) fNUsed++; + for (Int_t i = 0; i < 4; i++) { + fHFindCl[i]->Write(fHFindCl[i]->GetName(),TObject::kOverwrite); } -} - - -void AliTRDseed::EvaluateUni(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh) -{ - // - // robust estimator in 1D case MI version - // - //for the univariate case - //estimates of location and scatter are returned in mean and sigma parameters - //the algorithm works on the same principle as in multivariate case - - //it finds a subset of size hh with smallest sigma, and then returns mean and - //sigma of this subset - if (hh==0) - hh=(nvectors+2)/2; - Double_t faclts[]={2.6477,2.5092,2.3826,2.2662,2.1587,2.0589,1.9660,1.879,1.7973,1.7203,1.6473}; - Int_t *index=new Int_t[nvectors]; - TMath::Sort(nvectors, data, index, kFALSE); - // - Int_t nquant = TMath::Min(Int_t(Double_t(((hh*1./nvectors)-0.5)*40))+1, 11); - Double_t factor = faclts[nquant-1]; - // - // - Double_t sumx =0; - Double_t sumx2 =0; - Int_t bestindex = -1; - Double_t bestmean = 0; - Double_t bestsigma = data[index[nvectors-1]]-data[index[0]]; // maximal possible sigma - for (Int_t i=0; iFlush(); - Double_t bstd=factor*TMath::Sqrt(TMath::Abs(bestsigma)); - mean = bestmean; - sigma = bstd; - delete [] index; -} - + sav->cd(); -Float_t AliTRDseed::FitRiemanTilt(AliTRDseed * cseed, Bool_t terror){ - // - // - // - TLinearFitter fitterT2(4,"hyp4"); // fitting with tilting pads - kz not fixed - fitterT2.StoreData(kTRUE); - Float_t xref2 = (cseed[2].fX0+cseed[3].fX0)*0.5; // reference x0 for z - // - Int_t npointsT =0; - fitterT2.ClearPoints(); - for (Int_t iLayer=0; iLayer<6;iLayer++){ - if (!cseed[iLayer].isOK()) continue; - Double_t tilt = cseed[iLayer].fTilt; - - for (Int_t itime=0;itime<25;itime++){ - if (!cseed[iLayer].fUsable[itime]) continue; - Double_t x = cseed[iLayer].fX[itime]+cseed[iLayer].fX0-xref2; // x relative to the midle chamber - Double_t y = cseed[iLayer].fY[itime]; - Double_t z = cseed[iLayer].fZ[itime]; - // tilted rieman - // - Double_t uvt[6]; - Double_t x2 = cseed[iLayer].fX[itime]+cseed[iLayer].fX0; // global x - Double_t t = 1./(x2*x2+y*y); - uvt[1] = t; // t - uvt[0] = 2.*x2*uvt[1]; // u - uvt[2] = 2.0*tilt*uvt[1]; - uvt[3] = 2.0*tilt*x*uvt[1]; - uvt[4] = 2.0*(y+tilt*z)*uvt[1]; - // - Double_t error = 2*uvt[1]; - if (terror) error*=cseed[iLayer].fSigmaY; - else {error *=0.2;} //default error - fitterT2.AddPoint(uvt,uvt[4],error); - npointsT++; - } - } - fitterT2.Eval(); - Double_t rpolz0 = fitterT2.GetParameter(3); - Double_t rpolz1 = fitterT2.GetParameter(4); - // - // linear fitter - not possible to make boundaries - // non accept non possible z and dzdx combination - // - Bool_t acceptablez =kTRUE; - for (Int_t iLayer=0; iLayer<6;iLayer++){ - if (cseed[iLayer].isOK()){ - Double_t zT2 = rpolz0+rpolz1*(cseed[iLayer].fX0 - xref2); - if (TMath::Abs(cseed[iLayer].fZProb-zT2)>cseed[iLayer].fPadLength*0.5+1) - acceptablez = kFALSE; - } - } - if (!acceptablez){ - Double_t zmf = cseed[2].fZref[0]+cseed[2].fZref[1]*(xref2-cseed[2].fX0); - Double_t dzmf = (cseed[2].fZref[1]+ cseed[3].fZref[1])*0.5; - fitterT2.FixParameter(3,zmf); - fitterT2.FixParameter(4,dzmf); - fitterT2.Eval(); - fitterT2.ReleaseParameter(3); - fitterT2.ReleaseParameter(4); - rpolz0 = fitterT2.GetParameter(3); - rpolz1 = fitterT2.GetParameter(4); - } - // - Double_t chi2TR = fitterT2.GetChisquare()/Float_t(npointsT); - Double_t params[3]; - params[0] = fitterT2.GetParameter(0); - params[1] = fitterT2.GetParameter(1); - params[2] = fitterT2.GetParameter(2); - Double_t CR = 1+params[1]*params[1]-params[2]*params[0]; - for (Int_t iLayer = 0; iLayer<6;iLayer++){ - Double_t x = cseed[iLayer].fX0; - Double_t y=0,dy=0, z=0, dz=0; - // y - Double_t res2 = (x*params[0]+params[1]); - res2*=res2; - res2 = 1.-params[2]*params[0]+params[1]*params[1]-res2; - if (res2>=0){ - res2 = TMath::Sqrt(res2); - y = (1-res2)/params[0]; - } - //dy - Double_t x0 = -params[1]/params[0]; - if (-params[2]*params[0]+params[1]*params[1]+1>0){ - Double_t Rm1 = params[0]/TMath::Sqrt(-params[2]*params[0]+params[1]*params[1]+1); - if ( 1./(Rm1*Rm1)-(x-x0)*(x-x0)>0){ - Double_t res = (x-x0)/TMath::Sqrt(1./(Rm1*Rm1)-(x-x0)*(x-x0)); - if (params[0]<0) res*=-1.; - dy = res; - } - } - z = rpolz0+rpolz1*(x-xref2); - dz = rpolz1; - cseed[iLayer].fYref[0] = y; - cseed[iLayer].fYref[1] = dy; - cseed[iLayer].fZref[0] = z; - cseed[iLayer].fZref[1] = dz; - cseed[iLayer].fC = CR; - // - } - return chi2TR; }