X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=TRD%2FAliTRDtracker.cxx;h=fbe984d783501f435598b4db255880e3e7d5ed67;hb=55ac2228582e667666d2625c748bd24afe4e90ba;hp=52673621ab9f8b834505c4a356019b794ccaa356;hpb=eb187bed026d47c32376436b7de1d8ee60296a90;p=u%2Fmrichter%2FAliRoot.git diff --git a/TRD/AliTRDtracker.cxx b/TRD/AliTRDtracker.cxx index 52673621ab9..fbe984d7835 100644 --- a/TRD/AliTRDtracker.cxx +++ b/TRD/AliTRDtracker.cxx @@ -17,190 +17,205 @@ /////////////////////////////////////////////////////////////////////////////// // // -// 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 +#include +#include "AliESD.h" +#include "AliAlignObj.h" +#include "AliRieman.h" +#include "AliTrackPointArray.h" + +#include "AliTRDgeometry.h" +#include "AliTRDpadPlane.h" #include "AliTRDgeometry.h" -#include "AliTRDparameter.h" -#include "AliTRDgeometryDetail.h" -#include "AliTRDgeometryHole.h" #include "AliTRDcluster.h" #include "AliTRDtrack.h" -#include "AliTRDPartID.h" -#include "../TPC/AliTPCtrack.h" - +#include "AliTRDseed.h" +#include "AliTRDcalibDB.h" +#include "AliTRDCommonParam.h" #include "AliTRDtracker.h" +#include "AliTRDReconstructor.h" +#include "AliTRDCalibra.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; // Corresponds to tan = 3 +const Double_t AliTRDtracker::fgkMaxStep = 2.0; // Maximal step size in propagation -ClassImp(AliTRDtracker) - - const Float_t AliTRDtracker::fgkSeedDepth = 0.5; - const Float_t AliTRDtracker::fgkSeedStep = 0.10; - const Float_t AliTRDtracker::fgkSeedGap = 0.25; - - const Float_t AliTRDtracker::fgkMaxSeedDeltaZ12 = 40.; - const Float_t AliTRDtracker::fgkMaxSeedDeltaZ = 25.; - const Float_t AliTRDtracker::fgkMaxSeedC = 0.0052; - const Float_t AliTRDtracker::fgkMaxSeedTan = 1.2; - const Float_t AliTRDtracker::fgkMaxSeedVertexZ = 150.; - - const Double_t AliTRDtracker::fgkSeedErrorSY = 0.2; - const Double_t AliTRDtracker::fgkSeedErrorSY3 = 2.5; - const Double_t AliTRDtracker::fgkSeedErrorSZ = 0.1; - - const Float_t AliTRDtracker::fgkMinClustersInSeed = 0.7; - - const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5; - const Float_t AliTRDtracker::fgkMinFractionOfFoundClusters = 0.8; - - const Float_t AliTRDtracker::fgkSkipDepth = 0.3; - const Float_t AliTRDtracker::fgkLabelFraction = 0.8; - const Float_t AliTRDtracker::fgkWideRoad = 20.; - - const Double_t AliTRDtracker::fgkMaxChi2 = 12.; - -const Int_t AliTRDtracker::fgkFirstPlane = 5; -const Int_t AliTRDtracker::fgkLastPlane = 17; - - -//____________________________________________________________________ -AliTRDtracker::AliTRDtracker():AliTracker(), - fGeom(0), - fPar(0), - fNclusters(0), - fClusters(0), - fNseeds(0), - fSeeds(0), - fNtracks(0), - fTracks(0), - fSY2corr(0), - fSZ2corr(0), - fTimeBinsPerPlane(0), - fMaxGap(0), - fVocal(kFALSE), - fAddTRDseeds(kFALSE), - fNoTilt(kFALSE) +//_____________________________________________________________________________ +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) { - for(Int_t i=0;iIsOpen()) { - printf("AliTRDtracker::AliTRDtracker(): geometry file is not open!\n"); - printf(" DETAIL TRD geometry and DEFAULT TRD parameter will be used\n"); + AliWarning("geometry file is not open!\n"); + AliWarning("FULL TRD geometry and DEFAULT TRD parameter will be used\n"); } else { in->cd(); -// in->ls(); - fGeom = (AliTRDgeometry*) in->Get("TRDgeometry"); - fPar = (AliTRDparameter*) in->Get("TRDparameter"); -// fGeom->Dump(); - } - - if(fGeom) { - // fTzero = geo->GetT0(); - printf("Found geometry version %d on file \n", fGeom->IsVersion()); - } - else { - printf("AliTRDtracker::AliTRDtracker(): can't find TRD geometry!\n"); - //printf("The DETAIL TRD geometry will be used\n"); - //fGeom = new AliTRDgeometryDetail(); - fGeom = new AliTRDgeometryHole(); - fGeom->SetPHOShole(); - fGeom->SetRICHhole(); - } - - if (!fPar) { - printf("AliTRDtracker::AliTRDtracker(): can't find TRD parameter!\n"); - printf("The DEFAULT TRD parameter will be used\n"); - fPar = new AliTRDparameter(); + fGeom = (AliTRDgeometry *) in->Get("TRDgeometry"); } - fPar->ReInit(); - - savedir->cd(); - - // fGeom->SetT0(fTzero); + if (!fGeom) { + AliWarning("Cannot find TRD geometry!\n"); + fGeom = new AliTRDgeometry(); + } + fGeom->ReadGeoMatrices(); - fNclusters = 0; - fClusters = new TObjArray(2000); - fNseeds = 0; - fSeeds = new TObjArray(2000); - fNtracks = 0; - fTracks = new TObjArray(1000); + savedir->cd(); - for(Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { - Int_t trS = CookSectorIndex(geomS); - fTrSec[trS] = new AliTRDtrackingSector(fGeom, geomS, fPar); - 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); + for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) { + fHoles[icham][trS] = fGeom->IsHole(0,icham,geomS); } } - Float_t tiltAngle = TMath::Abs(fPar->GetTiltingAngle()); - if(tiltAngle < 0.1) { + AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0); + Float_t tiltAngle = TMath::Abs(padPlane->GetTiltingAngle()); + if (tiltAngle < 0.1) { fNoTilt = kTRUE; } - fSY2corr = 0.2; - fSZ2corr = 120.; - - if(fNoTilt && (tiltAngle > 0.1)) fSY2corr = fSY2corr + tiltAngle * 0.05; - - - // calculate max gap on track - - Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region - Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region - - Double_t dx = (Double_t) fPar->GetTimeBinSize(); - Int_t tbAmp = fPar->GetTimeBefore(); - Int_t maxAmp = (Int_t) ((dxAmp+0.000001)/dx); - if(kTRUE) maxAmp = 0; // intentional until we change the parameter class - Int_t tbDrift = fPar->GetTimeMax(); - Int_t maxDrift = (Int_t) ((dxDrift+0.000001)/dx); - - tbDrift = TMath::Min(tbDrift,maxDrift); - tbAmp = TMath::Min(tbAmp,maxAmp); - - fTimeBinsPerPlane = tbAmp + tbDrift; - fMaxGap = (Int_t) (fTimeBinsPerPlane * fGeom->Nplan() * fgkSkipDepth); - - fVocal = kFALSE; - + fTimeBinsPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); - // Barrel Tracks [SR, 03.04.2003] - - fBarrelFile = 0; - fBarrelTree = 0; - fBarrelArray = 0; - fBarrelTrack = 0; + fDebugStreamer = new TTreeSRedirector("TRDdebug.root"); savedir->cd(); + + InitLogHists(); + } -//___________________________________________________________________ +//_____________________________________________________________________________ AliTRDtracker::~AliTRDtracker() { // @@ -211,380 +226,367 @@ AliTRDtracker::~AliTRDtracker() fClusters->Delete(); delete fClusters; } + if (fTracks) { fTracks->Delete(); delete fTracks; } + if (fSeeds) { fSeeds->Delete(); delete fSeeds; } + delete fGeom; - delete fPar; - for(Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { + for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { delete fTrSec[geomS]; } -} -//_____________________________________________________________________ + if (fDebugStreamer) { + delete fDebugStreamer; + } + +} -void AliTRDtracker::SetBarrelTree(const char *mode) { +//_____________________________________________________________________________ +Int_t AliTRDtracker::LocalToGlobalID(Int_t lid) +{ // + // Transform internal TRD ID to global detector ID // + + Int_t isector = fGeom->GetSector(lid); + Int_t ichamber = fGeom->GetChamber(lid); + Int_t iplan = fGeom->GetPlane(lid); + + AliAlignObj::ELayerID iLayer = AliAlignObj::kTRD1; + switch (iplan) { + case 0: + iLayer = AliAlignObj::kTRD1; + break; + case 1: + iLayer = AliAlignObj::kTRD2; + break; + case 2: + iLayer = AliAlignObj::kTRD3; + break; + case 3: + iLayer = AliAlignObj::kTRD4; + break; + case 4: + iLayer = AliAlignObj::kTRD5; + break; + case 5: + iLayer = AliAlignObj::kTRD6; + break; + }; + + Int_t modId = isector * fGeom->Ncham() + ichamber; + UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId); + + return volid; + +} + +//_____________________________________________________________________________ +Int_t AliTRDtracker::GlobalToLocalID(Int_t gid) +{ // + // Transform global detector ID to local detector ID + // - if (!IsStoringBarrel()) return; + 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; + + switch (layerId) { + case AliAlignObj::kTRD1: + iLayer = 0; + break; + case AliAlignObj::kTRD2: + iLayer = 1; + break; + case AliAlignObj::kTRD3: + iLayer = 2; + break; + case AliAlignObj::kTRD4: + iLayer = 3; + break; + case AliAlignObj::kTRD5: + iLayer = 4; + break; + case AliAlignObj::kTRD6: + iLayer = 5; + break; + default: + iLayer =-1; + } - TDirectory *sav = gDirectory; - if (!fBarrelFile) fBarrelFile = new TFile("AliBarrelTracks.root", "UPDATE"); + if (iLayer < 0) { + return -1; + } - char buff[40]; - sprintf(buff, "BarrelTRD_%d_%s", GetEventNumber(), mode); + Int_t lid = fGeom->GetDetector(iLayer,ichamber,isector); - fBarrelFile->cd(); - fBarrelTree = new TTree(buff, "Barrel TPC tracks"); - - Int_t nRefs = fgkLastPlane - fgkFirstPlane + 1; + return lid; - if (!fBarrelArray) fBarrelArray = new TClonesArray("AliBarrelTrack", nRefs); - for(Int_t i=0; iBranch("tracks", &fBarrelArray); - sav->cd(); } - -//_____________________________________________________________________ -void AliTRDtracker::StoreBarrelTrack(AliTRDtrack *ps, Int_t refPlane, Int_t isIn) { +//_____________________________________________________________________________ +Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) +{ // + // Transform something ... whatever ... // + + // Magic constants for geo manager transformation + const Double_t kX0shift = 2.52; + const Double_t kX0shift5 = 3.05; + // - - if (!IsStoringBarrel()) return; - - static Int_t nClusters; - static Int_t nWrong; - static Double_t chi2; - static Int_t index; - static Bool_t wasLast = kTRUE; - - Int_t newClusters, newWrong; - Double_t newChi2; - - if (wasLast) { - - fBarrelArray->Clear(); - nClusters = nWrong = 0; - chi2 = 0.0; - index = 0; - wasLast = kFALSE; + // Apply alignment and calibration to transform cluster + // + Int_t detector = cluster->GetDetector(); + Int_t plane = fGeom->GetPlane(cluster->GetDetector()); + Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); + Int_t sector = fGeom->GetSector(cluster->GetDetector()); + + Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region + Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.0); // Drift distance + + // + // ExB correction + // + Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); + Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1); + + AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); + AliTRDpadPlane *padPlane = commonParam->GetPadPlane(plane,chamber); + Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); + Double_t localPos[3]; + Double_t localPosTracker[3]; + localPos[0] = -cluster->GetX(); + localPos[1] = cluster->GetY() - driftX * exB; + localPos[2] = cluster->GetZ() - zshiftIdeal; + + cluster->SetY(cluster->GetY() - driftX*exB); + Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); + cluster->SetX(xplane- cluster->GetX()); + + TGeoHMatrix *matrix = fGeom->GetCorrectionMatrix(cluster->GetDetector()); + if (!matrix) { + // No matrix found - if somebody used geometry with holes + AliError("Invalid Geometry - Default Geometry used\n"); + return kTRUE; } - - fBarrelTrack = (AliBarrelTrack*)(*fBarrelArray)[index++]; - ps->GetBarrelTrack(fBarrelTrack); - - newClusters = ps->GetNumberOfClusters() - nClusters; - newWrong = ps->GetNWrong() - nWrong; - newChi2 = ps->GetChi2() - chi2; - - nClusters = ps->GetNumberOfClusters(); - nWrong = ps->GetNWrong(); - chi2 = ps->GetChi2(); - - if (refPlane != fgkLastPlane) { - fBarrelTrack->SetNClusters(newClusters, newChi2); - fBarrelTrack->SetNWrongClusters(newWrong); - } else { - wasLast = kTRUE; - } + matrix->LocalToMaster(localPos,localPosTracker); + + if (AliTRDReconstructor::StreamLevel() > 1) { + (* fDebugStreamer) << "Transform" + << "Cl.=" << cluster + << "matrix.=" << matrix + << "Detector=" << detector + << "Sector=" << sector + << "Plane=" << plane + << "Chamber=" << chamber + << "lx0=" << localPosTracker[0] + << "ly0=" << localPosTracker[1] + << "lz0=" << localPosTracker[2] + << "\n"; + } + + if (plane == 5) { + cluster->SetX(localPosTracker[0]+kX0shift5); + } + else { + cluster->SetX(localPosTracker[0]+kX0shift); + } + + cluster->SetY(localPosTracker[1]); + cluster->SetZ(localPosTracker[2]); + + return kTRUE; - fBarrelTrack->SetRefPlane(refPlane, isIn); } -//_____________________________________________________________________ +//_____________________________________________________________________________ +// Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster) +//{ +// // +// // Is this still needed ???? +// // +// const Double_t kDriftCorrection = 1.01; // drift coeficient correction +// const Double_t kTime0Cor = 0.32; // time0 correction +// // +// const Double_t kX0shift = 2.52; +// const Double_t kX0shift5 = 3.05; + +// // +// // apply alignment and calibration to transform cluster +// // +// // +// Int_t detector = cluster->GetDetector(); +// Int_t plane = fGeom->GetPlane(cluster->GetDetector()); +// Int_t chamber = fGeom->GetChamber(cluster->GetDetector()); +// Int_t sector = fGeom->GetSector(cluster->GetDetector()); + +// Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region +// Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.); // drift distance +// // +// // ExB correction +// // +// Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); +// Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1); +// // + +// AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance(); +// AliTRDpadPlane * padPlane = commonParam->GetPadPlane(plane,chamber); +// Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd()); +// Double_t localPos[3], globalPos[3], localPosTracker[3], localPosTracker2[3]; +// localPos[2] = -cluster->GetX(); +// localPos[0] = cluster->GetY() - driftX*exB; +// localPos[1] = cluster->GetZ() -zshiftIdeal; +// TGeoHMatrix * matrix = fGeom->GetGeoMatrix(cluster->GetDetector()); +// matrix->LocalToMaster(localPos, globalPos); + +// Double_t sectorAngle = 20.*(sector%18)+10; +// TGeoHMatrix rotSector; +// rotSector.RotateZ(sectorAngle); +// rotSector.LocalToMaster(globalPos, localPosTracker); +// // +// // +// TGeoHMatrix matrix2(*matrix); +// matrix2.MultiplyLeft(&rotSector); +// matrix2.LocalToMaster(localPos,localPosTracker2); +// // +// // +// // +// cluster->SetY(cluster->GetY() - driftX*exB); +// Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); +// cluster->SetX(xplane- kDriftCorrection*(cluster->GetX()-kTime0Cor)); +// (*fDebugStreamer)<<"Transform"<< +// "Cl.="<SetX(localPosTracker[0]+kX0shift5); +// else +// cluster->SetX(localPosTracker[0]+kX0shift); + +// cluster->SetY(localPosTracker[1]); +// cluster->SetZ(localPosTracker[2]); +// 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); + Double_t y = track->GetY(); + Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha); + // Is this still needed ???? //Int_t ns = AliTRDgeometry::kNsect; //Int_t s=Int_t(track->GetAlpha()/alpha)%ns; - if (y > ymax) { + if (y > ymax) { //s = (s+1) % ns; - if (!track->Rotate(alpha)) return kFALSE; - } else if (y <-ymax) { + if (!track->Rotate( alpha)) { + return kFALSE; + } + } + else if (y < -ymax) { //s = (s-1+ns) % ns; - if (!track->Rotate(-alpha)) return kFALSE; + if (!track->Rotate(-alpha)) { + return kFALSE; + } } return kTRUE; + } -//_____________________________________________________________________ -inline Double_t f1trd(Double_t x1,Double_t y1, - Double_t x2,Double_t y2, - Double_t x3,Double_t y3) +//_____________________________________________________________________________ +AliTRDcluster *AliTRDtracker::GetCluster(AliTRDtrack *track, Int_t plane + , Int_t timebin, UInt_t &index) { // - // Initial approximation of the track curvature + // Try to find cluster in the backup list // - Double_t d=(x2-x1)*(y3-y2)-(x3-x2)*(y2-y1); - Double_t a=0.5*((y3-y2)*(y2*y2-y1*y1+x2*x2-x1*x1)- - (y2-y1)*(y3*y3-y2*y2+x3*x3-x2*x2)); - Double_t b=0.5*((x2-x1)*(y3*y3-y2*y2+x3*x3-x2*x2)- - (x3-x2)*(y2*y2-y1*y1+x2*x2-x1*x1)); - - Double_t xr=TMath::Abs(d/(d*x1-a)), yr=d/(d*y1-b); - return -xr*yr/sqrt(xr*xr+yr*yr); -} + AliTRDcluster *cl =0; + Int_t *indexes = track->GetBackupIndexes(); -//_____________________________________________________________________ -inline Double_t f2trd(Double_t x1,Double_t y1, - Double_t x2,Double_t y2, - Double_t x3,Double_t y3) -{ - // - // Initial approximation of the track curvature times X coordinate - // of the center of curvature - // - - Double_t d=(x2-x1)*(y3-y2)-(x3-x2)*(y2-y1); - Double_t a=0.5*((y3-y2)*(y2*y2-y1*y1+x2*x2-x1*x1)- - (y2-y1)*(y3*y3-y2*y2+x3*x3-x2*x2)); - Double_t b=0.5*((x2-x1)*(y3*y3-y2*y2+x3*x3-x2*x2)- - (x3-x2)*(y2*y2-y1*y1+x2*x2-x1*x1)); + 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; + index = indexes[i]; + break; + } + } - Double_t xr=TMath::Abs(d/(d*x1-a)), yr=d/(d*y1-b); + return cl; - return -a/(d*y1-b)*xr/sqrt(xr*xr+yr*yr); -} +} -//_____________________________________________________________________ -inline Double_t f3trd(Double_t x1,Double_t y1, - Double_t x2,Double_t y2, - Double_t z1,Double_t z2) +//_____________________________________________________________________________ +Int_t AliTRDtracker::GetLastPlane(AliTRDtrack *track) { // - // Initial approximation of the tangent of the track dip angle + // Return last updated plane // - return (z1 - z2)/sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)); -} + Int_t lastplane = 0; + Int_t *indexes = track->GetBackupIndexes(); - -AliTRDcluster * AliTRDtracker::GetCluster(AliTRDtrack * track, Int_t plane, Int_t timebin){ - // - //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; - Int_t iplane = fGeom->GetPlane(cli->GetDetector()); - if (iplane==plane) { - cl = cli; + for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) { + AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]); + if (!cli) { break; } - } - return cl; -} - - -Int_t AliTRDtracker::GetLastPlane(AliTRDtrack * track){ - // - //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 iplane = fGeom->GetPlane(cli->GetDetector()); - if (iplane>lastplane) { + if (iplane > lastplane) { lastplane = iplane; } } - return lastplane; -} -//___________________________________________________________________ -Int_t AliTRDtracker::Clusters2Tracks(const TFile *inp, TFile *out) -{ - // - // Finds tracks within the TRD. File is expected to contain seeds - // at the outer part of the TRD. If is NULL, the seeds - // are found within the TRD if fAddTRDseeds is TRUE. - // The tracks are propagated to the innermost time bin - // of the TRD and stored in file . - // - - LoadEvent(); - - TDirectory *savedir=gDirectory; - - char tname[100]; - - if (!out->IsOpen()) { - cerr<<"AliTRDtracker::Clusters2Tracks(): output file is not open !\n"; - return 1; - } - - sprintf(tname,"seedTRDtoTPC_%d",GetEventNumber()); - TTree tpcTree(tname,"Tree with seeds from TRD at outer TPC pad row"); - AliTPCtrack *iotrack=0; - tpcTree.Branch("tracks","AliTPCtrack",&iotrack,32000,0); - - sprintf(tname,"TreeT%d_TRD",GetEventNumber()); - TTree trdTree(tname,"TRD tracks at inner TRD time bin"); - AliTRDtrack *iotrackTRD=0; - trdTree.Branch("tracks","AliTRDtrack",&iotrackTRD,32000,0); - - Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); - Float_t foundMin = fgkMinClustersInTrack * timeBins; - - if (inp) { - TFile *in=(TFile*)inp; - if (!in->IsOpen()) { - cerr<< - "AliTRDtracker::Clusters2Tracks(): file with seeds is not open !\n"; - cerr<<" ... going for seeds finding inside the TRD\n"; - } - else { - in->cd(); - sprintf(tname,"TRDb_%d",GetEventNumber()); - TTree *seedTree=(TTree*)in->Get(tname); - if (!seedTree) { - cerr<<"AliTRDtracker::Clusters2Tracks(): "; - cerr<<"can't get a tree with track seeds !\n"; - return 3; - } - AliTRDtrack *seed=new AliTRDtrack; - seedTree->SetBranchAddress("tracks",&seed); - - Int_t n=(Int_t)seedTree->GetEntries(); - for (Int_t i=0; iGetEvent(i); - seed->ResetCovariance(); - AliTRDtrack *tr = new AliTRDtrack(*seed,seed->GetAlpha()); - fSeeds->AddLast(tr); - fNseeds++; - } - delete seed; - delete seedTree; - } - } - - out->cd(); + return lastplane; - // find tracks from loaded seeds - - Int_t nseed=fSeeds->GetEntriesFast(); - Int_t i, found = 0; - Int_t innerTB = fTrSec[0]->GetInnerTimeBin(); - - for (i=0; iUncheckedAt(i), &t=*pt; - FollowProlongation(t, innerTB); - if (t.GetNumberOfClusters() >= foundMin) { - UseClusters(&t); - CookLabel(pt, 1-fgkLabelFraction); - // t.CookdEdx(); - } - iotrackTRD = pt; - trdTree.Fill(); - found++; -// cout<GetAlpha()); - iotrack = tpc; - tpcTree.Fill(); - delete tpc; - } - delete fSeeds->RemoveAt(i); - fNseeds--; - } - - cout<<"Number of loaded seeds: "<GetNumberOfTimeBins(); - - Int_t nSteps = (Int_t) (fgkSeedDepth / fgkSeedStep); - Int_t gap = (Int_t) (timeBins * fgkSeedGap); - Int_t step = (Int_t) (timeBins * fgkSeedStep); - - // make a first turn with tight cut on initial curvature - for(Int_t turn = 1; turn <= 2; turn++) { - if(turn == 2) { - nSteps = (Int_t) (fgkSeedDepth / (3*fgkSeedStep)); - step = (Int_t) (timeBins * (3*fgkSeedStep)); - } - for(Int_t i=0; iGetEntriesFast(); - - MakeSeeds(inner, outer, turn); - - nseed=fSeeds->GetEntriesFast(); - // printf("\n turn %d, step %d: number of seeds for TRD inward %d\n", - // turn, i, nseed); - - for (Int_t i=0; iUncheckedAt(i), &t=*pt; - FollowProlongation(t,innerTB); - if (t.GetNumberOfClusters() >= foundMin) { - UseClusters(&t); - CookLabel(pt, 1-fgkLabelFraction); - t.CookdEdx(); - found++; -// cout<GetAlpha()); - iotrack = tpc; - tpcTree.Fill(); - delete tpc; - } - } - delete fSeeds->RemoveAt(i); - fNseeds--; - } - } - } - } - tpcTree.Write(); - trdTree.Write(); - - cout<<"Total number of found tracks: "<cd(); - - return 0; -} - -//___________________________________________________________________ -Int_t AliTRDtracker::Clusters2Tracks(AliESD* event) +//_____________________________________________________________________________ +Int_t AliTRDtracker::Clusters2Tracks(AliESD *event) { // // Finds tracks within the TRD. The ESD event is expected to contain seeds @@ -594,105 +596,59 @@ 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; - nseed++; + for (Int_t i = 0; i < n; i++) { - AliTRDtrack* seed2 = new AliTRDtrack(*seed); + 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); //seed2->ResetCovariance(); - AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha()); - AliTRDtrack &t=*pt; - FollowProlongation(t, innerTB); + 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: "<GetNumberOfTimeBins(); - - Int_t nSteps = (Int_t) (fgkSeedDepth / fgkSeedStep); - Int_t gap = (Int_t) (timeBins * fgkSeedGap); - Int_t step = (Int_t) (timeBins * fgkSeedStep); - - // make a first turn with tight cut on initial curvature - for(Int_t turn = 1; turn <= 2; turn++) { - if(turn == 2) { - nSteps = (Int_t) (fgkSeedDepth / (3*fgkSeedStep)); - step = (Int_t) (timeBins * (3*fgkSeedStep)); - } - for(Int_t i=0; iGetEntriesFast(); - - MakeSeeds(inner, outer, turn); - - nseed=fSeeds->GetEntriesFast(); - // printf("\n turn %d, step %d: number of seeds for TRD inward %d\n", - // turn, i, nseed); - - for (Int_t i=0; iUncheckedAt(i), &t=*pt; - FollowProlongation(t,innerTB); - if (t.GetNumberOfClusters() >= foundMin) { - UseClusters(&t); - CookLabel(pt, 1-fgkLabelFraction); - t.CookdEdx(); - found++; -// cout<AddTrack(&track); - } - } - delete fSeeds->RemoveAt(i); - fNseeds--; - } - } - } } - - cout<<"Total number of found tracks: "<. The seeds are AliTPCtrack's found and + // Gets seeds from ESD event. The seeds are AliTPCtrack's found and // backpropagated by the TPC tracker. Each seed is first propagated // to the TRD, and then its prolongation is searched in the TRD. // If sufficiently long continuation of the track is found in the TRD @@ -700,298 +656,281 @@ Int_t AliTRDtracker::PropagateBack(const TFile *inp, TFile *out) { // by the TPC tracker. // - LoadEvent(); + Int_t found = 0; // number of tracks found + Float_t foundMin = 20.0; + Int_t n = event->GetNumberOfTracks(); + + // Sort tracks + Float_t *quality = new Float_t[n]; + Int_t *index = new Int_t[n]; + for (Int_t i = 0; i < n; i++) { + AliESDtrack *seed = event->GetTrack(i); + Double_t covariance[15]; + seed->GetExternalCovariance(covariance); + quality[i] = covariance[0]+covariance[2]; + //quality[i] = covariance[0]; + } + TMath::Sort(n,quality,index,kFALSE); - TDirectory *savedir=gDirectory; + for (Int_t i = 0; i < n; i++) { - TFile *in=(TFile*)inp; + //AliESDtrack *seed = event->GetTrack(i); + AliESDtrack *seed = event->GetTrack(index[i]); + fHBackfit->Fill(0); - if (!in->IsOpen()) { - cerr<<"AliTRDtracker::PropagateBack(): "; - cerr<<"file with back propagated TPC tracks is not open !\n"; - return 1; - } + ULong_t status = seed->GetStatus(); + if ((status & AliESDtrack::kTPCout) == 0) { + fHBackfit->Fill(1); + continue; + } - if (!out->IsOpen()) { - cerr<<"AliTRDtracker::PropagateBack(): "; - cerr<<"file for back propagated TRD tracks is not open !\n"; - return 2; - } + if ((status & AliESDtrack::kTRDout) != 0) { + fHBackfit->Fill(2); + continue; + } - in->cd(); - char tname[100]; - sprintf(tname,"seedsTPCtoTRD_%d",GetEventNumber()); - TTree *seedTree=(TTree*)in->Get(tname); - if (!seedTree) { - cerr<<"AliTRDtracker::PropagateBack(): "; - cerr<<"can't get a tree with seeds from TPC !\n"; - cerr<<"check if your version of TPC tracker creates tree "<GetLabel(); + AliTRDtrack *track = new AliTRDtrack(*seed); + track->SetSeedLabel(lbl); + seed->UpdateTrackParams(track,AliESDtrack::kTRDbackup); // Make backup + fNseeds++; + Float_t p4 = track->GetC(); + Int_t expectedClr = FollowBackProlongation(*track); + + fHBackfit->Fill(3); + fHX->Fill(track->GetX()); - AliTPCtrack *seed=new AliTPCtrack; - seedTree->SetBranchAddress("tracks",&seed); - Int_t n=(Int_t)seedTree->GetEntries(); - for (Int_t i=0; iGetEvent(i); - Int_t lbl = seed->GetLabel(); - AliTRDtrack *tr = new AliTRDtrack(*seed,seed->GetAlpha()); - tr->SetSeedLabel(lbl); - fSeeds->AddLast(tr); - fNseeds++; - } + // store the last measurement + /* + fHNClTrack->Fill(track->GetNumberOfClusters()); + if (track->GetNumberOfClusters() >= foundMin) { + + fHBackfit->Fill(4); + track->CookdEdx(); + CookdEdxTimBin(*track); + CookLabel(track,1 - fgkLabelFraction); + if (track->GetBackupTrack()) { + //fHBackfit->Fill(5); + UseClusters(track->GetBackupTrack()); + seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup); + } + } + */ - delete seed; - delete seedTree; + /**/ + // inter-tracks competition ??? + if ((TMath::Abs(track->GetC() - p4) / TMath::Abs(p4) < 0.2) || + (TMath::Abs(track->GetPt()) > 0.8)) { + + fHBackfit->Fill(4); + + // + // 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()); + } - out->cd(); + // Sign only gold tracks + if (track->GetChi2() / track->GetNumberOfClusters() < 4) { + if ((seed->GetKinkIndex(0) == 0) && + (TMath::Abs(track->GetPt()) < 1.5)) { + UseClusters(track); + } + } + Bool_t isGold = kFALSE; + + // 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() + } - AliTPCtrack *otrack=0; + // 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; + } - sprintf(tname,"seedsTRDtoTOF1_%d",GetEventNumber()); - TTree tofTree1(tname,"Tracks back propagated through TPC and TRD"); - tofTree1.Branch("tracks","AliTPCtrack",&otrack,32000,0); + 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; + } + } - sprintf(tname,"seedsTRDtoTOF2_%d",GetEventNumber()); - TTree tofTree2(tname,"Tracks back propagated through TPC and TRD"); - tofTree2.Branch("tracks","AliTPCtrack",&otrack,32000,0); + if ((track->StatusForTOF() > 0) && + (track->GetNCross() == 0) && + (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) { + //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); + } - sprintf(tname,"seedsTRDtoPHOS_%d",GetEventNumber()); - TTree phosTree(tname,"Tracks back propagated through TPC and TRD"); - phosTree.Branch("tracks","AliTPCtrack",&otrack,32000,0); + } + } + /**/ + + /**/ + // Debug part of tracking + TTreeSRedirector &cstream = *fDebugStreamer; + Int_t eventNrInFile = event->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"; + } + } + /**/ - sprintf(tname,"seedsTRDtoRICH_%d",GetEventNumber()); - TTree richTree(tname,"Tracks back propagated through TPC and TRD"); - richTree.Branch("tracks","AliTPCtrack",&otrack,32000,0); + // Propagation to the TOF (I.Belikov) + if (track->GetStop() == kFALSE) { + fHBackfit->Fill(5); - sprintf(tname,"TRDb_%d",GetEventNumber()); - TTree trdTree(tname,"Back propagated TRD tracks at outer TRD time bin"); - AliTRDtrack *otrackTRD=0; - trdTree.Branch("tracks","AliTRDtrack",&otrackTRD,32000,0); - - if (IsStoringBarrel()) SetBarrelTree("back"); - out->cd(); - - Int_t found=0; - Int_t nseed=fSeeds->GetEntriesFast(); - - // Float_t foundMin = fgkMinClustersInTrack * fTimeBinsPerPlane * fGeom->Nplan(); - Float_t foundMin = 40; - - Int_t outermostTB = fTrSec[0]->GetOuterTimeBin(); - - for (Int_t i=0; iUncheckedAt(i), &s=*ps; - Int_t expectedClr = FollowBackProlongation(s); - - if (IsStoringBarrel()) { - StoreBarrelTrack(ps, fgkLastPlane, kTrackBack); - fBarrelTree->Fill(); - } - - Int_t foundClr = s.GetNumberOfClusters(); - Int_t lastTB = fTrSec[0]->GetLayerNumber(s.GetX()); - - // printf("seed %d: found %d out of %d expected clusters, Min is %f\n", - // i, foundClr, expectedClr, foundMin); - - if (foundClr >= foundMin) { - if(foundClr >= 2) { - s.CookdEdx(); - CookLabel(ps, 1-fgkLabelFraction); - UseClusters(ps); - } - - // Propagate to outer reference plane [SR, GSI, 18.02.2003] - ps->PropagateTo(364.8); - otrackTRD=ps; - trdTree.Fill(); - found++; -// cout<= 10) && - (((Float_t) foundClr) / ((Float_t) expectedClr) >= - fgkMinFractionOfFoundClusters) && (lastTB == outermostTB))) { - - Double_t xTOF = 375.5; + Double_t xtof = 371.0; + Double_t xTOF0 = 370.0; - if(PropagateToOuterPlane(s,xTOF)) { - AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha()); - otrack = pt; - tofTree1.Fill(); - delete pt; - - xTOF = 381.5; - - if(PropagateToOuterPlane(s,xTOF)) { - AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha()); - otrack = pt; - tofTree2.Fill(); - delete pt; - - Double_t xPHOS = 460.; - - if(PropagateToOuterPlane(s,xPHOS)) { - AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha()); - otrack = pt; - phosTree.Fill(); - delete pt; - - Double_t xRICH = 490+1.267; - - if(PropagateToOuterPlane(s,xRICH)) { - AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha()); - otrack = pt; - richTree.Fill(); - delete pt; - } - } - } - } - } - } - - - out->cd(); - tofTree1.Write(); - tofTree2.Write(); - phosTree.Write(); - richTree.Write(); - trdTree.Write(); - - if (IsStoringBarrel()) { // [SR, 03.04.2003] - fBarrelFile->cd(); - fBarrelTree->Write(); - fBarrelFile->Flush(); - } - - savedir->cd(); - cerr<<"Number of seeds: "<GetNumberOfTracks(); - for (Int_t i=0; iGetTrack(i); - ULong_t status=seed->GetStatus(); - if ( (status & AliESDtrack::kTPCout ) == 0 ) continue; - if ( (status & AliESDtrack::kTRDout) != 0 ) continue; - - Int_t lbl = seed->GetLabel(); - AliTRDtrack *track = new AliTRDtrack(*seed); - track->SetSeedLabel(lbl); - fNseeds++; - Float_t p4 = track->GetC(); - // - Int_t expectedClr = FollowBackProlongation(*track); - if (track->GetNumberOfClusters()SetSeedLabel(lbl); - FollowBackProlongation(*track1); - AliTRDtrack *track2= new AliTRDtrack(*seed); - track->SetSeedLabel(lbl); - FollowBackProlongation(*track2); - delete track1; - delete track2; - } - if (TMath::Abs(track->GetC()-p4)/TMath::Abs(p4)>0.2) { - delete track; - continue; //too big change of curvature - to be checked - } - Int_t foundClr = track->GetNumberOfClusters(); - if (foundClr >= foundMin) { - if(foundClr >= 2) { - track->CookdEdx(); -// CookLabel(track, 1-fgkLabelFraction); - UseClusters(track); + Double_t c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX()); + if (TMath::Abs(c2) >= 0.99) { + + fHBackfit->Fill(6); + delete track; + continue; } - // Propagate to outer reference plane [SR, GSI, 18.02.2003] -// track->PropagateTo(364.8); why? - - //seed->UpdateTrackParams(track, AliESDtrack::kTRDout); - //found++; - } + PropagateToX(*track,xTOF0,fgkMaxStep); - //Propagation to the TOF (I.Belikov) - - if (track->GetStop()==kFALSE){ + // 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 xtof=378.; - Double_t c2=track->GetC()*xtof - track->GetEta(); - if (TMath::Abs(c2)>=0.85) continue; - Double_t xTOF0 = 375.5; - PropagateToOuterPlane(*track,xTOF0); - // - 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); - if (track->GetNumberOfClusters()>foundMin) found++; + 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) { + fHBackfit->Fill(11); + found++; + } } - }else{ - if (track->GetNumberOfClusters()>15&&track->GetNumberOfClusters()>0.5*expectedClr){ - seed->UpdateTrackParams(track, AliESDtrack::kTRDout); - seed->UpdateTrackParams(track, AliESDtrack::kTRDStop); + + } + 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; 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->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(AliESD *event) { // // Refits tracks within the TRD. The ESD event is expected to contain seeds @@ -1001,940 +940,578 @@ Int_t AliTRDtracker::RefitInward(AliESD* event) // Origin: Thomas KUHR (Thomas.Kuhr@cern.ch) // - 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(); + AliTRDtrack seed2; + 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; - nseed++; + 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) { + fHRefit->Fill(2); + continue; + } + if ((status & AliESDtrack::kTRDin) != 0) { + fHRefit->Fill(3); + continue; + } + + nseed++; + fHRefit->Fill(4); + + seed2.ResetCovariance(50.0); + + AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha()); + 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); + } - AliTRDtrack* seed2 = new AliTRDtrack(*seed); - seed2->ResetCovariance(5.); - AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha()); - UInt_t * indexes2 = seed2->GetIndexes(); - 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, innerTB); - /* - if (t.GetNumberOfClusters()GetTRDclusters(indexes3)*0.5){ - // debug - why we dont go back? - AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); - UInt_t * indexes2 = seed2->GetIndexes(); - UInt_t * indexes3 = pt2->GetBackupIndexes(); - for (Int_t i=0;i<200;i++) { - if (indexes2[i]==0) break; - indexes3[i] = indexes2[i]; - } - FollowProlongation(*pt2, innerTB); - delete pt2; - } - */ + AliTRDtrack &t = *pt; + FollowProlongation(t); if (t.GetNumberOfClusters() >= foundMin) { - // UseClusters(&t); + //UseClusters(&t); //CookLabel(pt, 1-fgkLabelFraction); - // t.CookdEdx(); + t.CookdEdx(); + CookdEdxTimBin(t); } found++; -// cout<UpdateTrackParams(pt, AliESDtrack::kTRDrefit); - }else{ - //if not prolongation to TPC - propagate without update - AliTRDtrack* seed2 = new AliTRDtrack(*seed); - seed2->ResetCovariance(5.); - AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); + + Double_t xTPC = 250.0; + if (PropagateToX(t,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 + fHRefit->Fill(5); + AliTRDtrack *seed2 = new AliTRDtrack(*seed); + seed2->ResetCovariance(5.0); + AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); delete seed2; - if (PropagateToTPC(*pt2)) - seed->UpdateTrackParams(pt2, AliESDtrack::kTRDrefit); + if (PropagateToX(*pt2,xTPC,fgkMaxStep)) { + pt2->CookdEdx( ); + CookdEdxTimBin(*pt2); + 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); + } + } delete pt2; - } + } - delete seed2; delete pt; - } - cout<<"Number of loaded seeds: "<= 0; iplane--) { - alpha=AliTRDgeometry::GetAlpha(); // note: change in meaning + Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); + Int_t rowlast = GetGlobalTimeBin(0,iplane,0); - - for (Int_t nr=fTrSec[0]->GetLayerNumber(t.GetX()); nr>rf; nr--) { - - y = t.GetY(); z = t.GetZ(); - - // first propagate to the inner surface of the current time bin - fTrSec[s]->GetLayer(nr)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - x = fTrSec[s]->GetLayer(nr)->GetX()-dx/2; y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,radLength,rho)) break; - y = t.GetY(); - ymax = x*TMath::Tan(0.5*alpha); - if (y > ymax) { - s = (s+1) % ns; - if (!t.Rotate(alpha)) break; - if(!t.PropagateTo(x,radLength,rho)) break; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) break; - if(!t.PropagateTo(x,radLength,rho)) break; - } + // + // 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; + } + } - y = t.GetY(); z = t.GetZ(); - - // now propagate to the middle plane of the next time bin - fTrSec[s]->GetLayer(nr-1)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - x = fTrSec[s]->GetLayer(nr-1)->GetX(); y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,radLength,rho)) break; - y = t.GetY(); - ymax = x*TMath::Tan(0.5*alpha); - if (y > ymax) { - s = (s+1) % ns; - if (!t.Rotate(alpha)) break; - if(!t.PropagateTo(x,radLength,rho)) break; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) break; - if(!t.PropagateTo(x,radLength,rho)) break; - } + 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 - if(lookForCluster) { + // + // Propagate and update + // + sector = t.GetSector(); + //for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) { + for (Int_t itime = 0 ; itime < GetTimeBinsPerPlane(); itime++) { + Int_t ilayer = GetGlobalTimeBin(0,iplane,itime); expectedNumberOfClusters++; - wIndex = (Float_t) t.GetLabel(); - wTB = nr; - - AliTRDpropagationLayer& timeBin=*(fTrSec[s]->GetLayer(nr-1)); - - Double_t sy2=ExpectedSigmaY2(x,t.GetTgl(),t.GetPt()); - Double_t sz2=ExpectedSigmaZ2(x,t.GetTgl()); - - Double_t road; - if((t.GetSigmaY2() + sy2) > 0) road=10.*sqrt(t.GetSigmaY2() + sy2); - else return expectedNumberOfClusters; - - wYrt = (Float_t) y; - wZrt = (Float_t) z; - wYwindow = (Float_t) road; - t.GetPxPyPz(px,py,pz); - wPx = (Float_t) px; - wPy = (Float_t) py; - wPz = (Float_t) pz; - wC = (Float_t) t.GetC(); - wSigmaC2 = (Float_t) t.GetSigmaC2(); - wSigmaTgl2 = (Float_t) t.GetSigmaTgl2(); - wSigmaY2 = (Float_t) t.GetSigmaY2(); - wSigmaZ2 = (Float_t) t.GetSigmaZ2(); - wChi2 = -1; - - - AliTRDcluster *cl=0; - UInt_t index=0; - - Double_t maxChi2=fgkMaxChi2; - - wYclosest = 12345678; - wYcorrect = 12345678; - wZclosest = 12345678; - wZcorrect = 12345678; - wZwindow = TMath::Sqrt(2.25 * 12 * sz2); + 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(); - // Find the closest correct cluster for debugging purposes if (timeBin) { - Float_t minDY = 1000000; - for (Int_t i=0; iGetLabel(0) != trackIndex) && - (c->GetLabel(1) != trackIndex) && - (c->GetLabel(2) != trackIndex)) continue; - if(TMath::Abs(c->GetY() - y) > minDY) continue; - minDY = TMath::Abs(c->GetY() - y); - wYcorrect = c->GetY(); - wZcorrect = c->GetZ(); - - Double_t h01 = GetTiltFactor(c); - wChi2 = t.GetPredictedChi2(c, h01); - } - } - - // Now go for the real cluster search - if (timeBin) { - // - //find cluster in history - cl =0; - - AliTRDcluster * cl0 = timeBin[0]; + AliTRDcluster *cl0 = timeBin[0]; if (!cl0) { - continue; + // 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); - if (cl2) { - cl =cl2; - Double_t h01 = GetTiltFactor(cl); - maxChi2=t.GetPredictedChi2(cl,h01); + + Int_t plane = fGeom->GetPlane(cl0->GetDetector()); + if (plane > lastplane) { + continue; } - if ((!cl) && road>fgkWideRoad) { - //if (t.GetNumberOfClusters()>4) - // cerr<GetLocalTimeBin(); + AliTRDcluster *cl2 = GetCluster(&t,plane,timebin,index); - if(!cl){ + if (cl2) { - for (Int_t i=timeBin.Find(y-road); iGetY() > y+road) break; - if (c->IsUsed() > 0) continue; - if((c->GetZ()-z)*(c->GetZ()-z) > 3 * sz2) continue; - - Double_t h01 = GetTiltFactor(c); - Double_t chi2=t.GetPredictedChi2(c,h01); - - if (chi2 > maxChi2) continue; - maxChi2=chi2; - cl=c; - index=timeBin.GetIndex(i); - } - } + cl = cl2; + //Double_t h01 = GetTiltFactor(cl); //I.B's fix + //maxChi2=t.GetPredictedChi2(cl,h01); - if(!cl) { - - for (Int_t i=timeBin.Find(y-road); iGetY() > y+road) break; - if (c->IsUsed() > 0) continue; - if((c->GetZ()-z)*(c->GetZ()-z) > 12 * sz2) continue; - - Double_t h01 = GetTiltFactor(c); - Double_t chi2=t.GetPredictedChi2(c, h01); - - if (chi2 > maxChi2) continue; - maxChi2=chi2; - cl=c; - index=timeBin.GetIndex(i); - } - } + } if (cl) { - wYclosest = cl->GetY(); - wZclosest = cl->GetZ(); - Double_t h01 = GetTiltFactor(cl); - - t.SetSampledEdx(cl->GetQ()/dx,t.GetNumberOfClusters()); - //printf("Track position\t%f\t%f\t%f\n",t.GetX(),t.GetY(),t.GetZ()); - //printf("Cluster position\t%d\t%f\t%f\n",cl->GetLocalTimeBin(),cl->GetY(),cl->GetZ()); - Int_t det = cl->GetDetector(); - Int_t plane = fGeom->GetPlane(det); - - if(!t.UpdateMI(cl,maxChi2,index,h01,plane)) { - //if(!t.Update(cl,maxChi2,index,h01)) { - //if(!tryAgain--) return 0; - } - else tryAgain=fMaxGap; - } - else { - //if (tryAgain==0) break; - tryAgain--; - } - /* - if((((Int_t) wTB)%15 == 0) || (((Int_t) wTB)%15 == 14)) { + //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.GetX() > 345.0) { + t.SetNLast(t.GetNLast() + 1); + t.SetChi2Last(t.GetChi2Last() + maxChi2); + } + + Double_t xcluster = cl->GetX(); + t.PropagateTo(xcluster,radLength,rho); + + if (!AdjustSector(&t)) { + break; //I.B's fix + } + maxChi2 = t.GetPredictedChi2(cl,h01); - printf(" %f", wIndex); //1 - printf(" %f", wTB); //2 - printf(" %f", wYrt); //3 - printf(" %f", wYclosest); //4 - printf(" %f", wYcorrect); //5 - printf(" %f", wYwindow); //6 - printf(" %f", wZrt); //7 - printf(" %f", wZclosest); //8 - printf(" %f", wZcorrect); //9 - printf(" %f", wZwindow); //10 - printf(" %f", wPx); //11 - printf(" %f", wPy); //12 - printf(" %f", wPz); //13 - printf(" %f", wSigmaC2*1000000); //14 - printf(" %f", wSigmaTgl2*1000); //15 - printf(" %f", wSigmaY2); //16 - // printf(" %f", wSigmaZ2); //17 - printf(" %f", wChi2); //17 - printf(" %f", wC); //18 - printf("\n"); - } - */ + if (maxChi2<1e+10) + if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { + // ???? + } + + } + } - } + + } + } - 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 // 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 + // + // return number of assigned clusters ? + // - Float_t wIndex, wTB, wChi2; - Float_t wYrt, wYclosest, wYcorrect, wYwindow; - Float_t wZrt, wZclosest, wZcorrect, wZwindow; - Float_t wPx, wPy, wPz, wC; - Double_t px, py, pz; - Float_t wSigmaC2, wSigmaTgl2, wSigmaY2, wSigmaZ2; - - Int_t trackIndex = t.GetLabel(); - Int_t tryAgain=fMaxGap; - - Double_t alpha=t.GetAlpha(); - TVector2::Phi_0_2pi(alpha); - - Int_t s; - - Int_t outerTB = fTrSec[0]->GetOuterTimeBin(); - Double_t radLength, rho, x, dx, y, ymax = 0, z; - Bool_t lookForCluster; - Int_t expectedNumberOfClusters = 0; - x = t.GetX(); + Int_t sector; + Int_t clusters[1000]; + Double_t radLength = 0.0; + Double_t rho = 0.0; + Int_t expectedNumberOfClusters = 0; + Float_t ratio0 = 0.0; + AliTRDtracklet tracklet; - alpha=AliTRDgeometry::GetAlpha(); // note: change in meaning + // Calibration fill 2D + AliTRDCalibra *calibra = AliTRDCalibra::Instance(); + if (!calibra) { + AliInfo("Could not get Calibra instance\n"); + } + if (calibra->GetMITracking()) { + calibra->ResetTrack(); + } - Int_t nRefPlane = fgkFirstPlane; - Bool_t isNewLayer = kFALSE; + for (Int_t i = 0; i < 1000; i++) { + clusters[i] = -1; + } - Double_t chi2; - Double_t minDY; - Int_t zone =-10; - Int_t nr; - for (nr=fTrSec[0]->GetLayerNumber(t.GetX()); nrFill(hb); - s = t.GetSector(); - fTrSec[s]->GetLayer(nr)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - x = fTrSec[s]->GetLayer(nr)->GetX()+dx/2; - y = t.GetY(); - z = t.GetZ(); + Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1); + Int_t rowlast = GetGlobalTimeBin(0,iplane,0); + Double_t currentx = fTrSec[0]->GetLayer(row0)->GetX(); + if (currentx < t.GetX()) { + fHClSearch->Fill(hb+1); + continue; + } - if(!t.PropagateTo(x,radLength,rho)) break; - // if (!AdjustSector(&t)) break; // - // MI -fix untill correct material desription will be implemented + // Propagate closer to chamber if neccessary // - Float_t angle = t.GetAlpha(); // MI - if rotation - we go through the material - - if (!AdjustSector(&t)) break; - if (TMath::Abs(angle - t.GetAlpha())>0.000001) break; //better to stop track - Int_t currentzone = fTrSec[s]->GetLayer(nr)->GetZone(z); - if (currentzone==-10) break; // we are in the frame - if (currentzone>-10){ // layer knows where we are - if (zone==-10) zone = currentzone; - if (zone!=currentzone) break; + if (currentx > (fgkMaxStep + t.GetX())) { + if (!PropagateToX(t,currentx-fgkMaxStep,fgkMaxStep)) { + fHClSearch->Fill(hb+2); + break; + } + } + if (!AdjustSector(&t)) { + fHClSearch->Fill(hb+3); + break; } + if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) { + fHClSearch->Fill(hb+4); + break; + } + // + // Get material budget inside of chamber // - s = t.GetSector(); - if (!t.PropagateTo(x,radLength,rho)) break; - - y = t.GetY(); - z = t.GetZ(); - - // Barrel Tracks [SR, 04.04.2003] - - s = t.GetSector(); - if (fTrSec[s]->GetLayer(nr)->IsSensitive() != - fTrSec[s]->GetLayer(nr+1)->IsSensitive() ) { - -// if (IsStoringBarrel()) StoreBarrelTrack(&t, nRefPlane++, kTrackBack); + 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(rowlast)->GetX(); + if (!t.GetProlongation(x,y,z)) { + fHClSearch->Fill(hb+5); + 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 - if (fTrSec[s]->GetLayer(nr-1)->IsSensitive() && - ! fTrSec[s]->GetLayer(nr)->IsSensitive()) { - isNewLayer = kTRUE; - } else {isNewLayer = kFALSE;} - - y = t.GetY(); - z = t.GetZ(); - - // now propagate to the middle plane of the next time bin - fTrSec[s]->GetLayer(nr+1)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - - x = fTrSec[s]->GetLayer(nr+1)->GetX(); - if(!t.PropagateTo(x,radLength,rho)) break; - if (!AdjustSector(&t)) break; - s = t.GetSector(); - if(!t.PropagateTo(x,radLength,rho)) break; + // + // Find clusters + // + sector = t.GetSector(); + Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet); + fHNCl->Fill(tracklet.GetN()); - y = t.GetY(); - z = t.GetZ(); + if (tracklet.GetN() < GetTimeBinsPerPlane()/3) { + fHClSearch->Fill(hb+6); + continue; + } - if(fVocal) printf("nr+1=%d, x %f, z %f, y %f, ymax %f\n",nr+1,x,z,y,ymax); - // printf("label %d, pl %d, lookForCluster %d \n", - // trackIndex, nr+1, lookForCluster); + // + // Propagate and update track + // + for (Int_t itime = GetTimeBinsPerPlane()-1; itime >= 0; itime--) { - if(lookForCluster) { + Int_t ilayer = GetGlobalTimeBin(0, iplane,itime); expectedNumberOfClusters++; - - wIndex = (Float_t) t.GetLabel(); - wTB = fTrSec[s]->GetLayer(nr+1)->GetTimeBinIndex(); - - AliTRDpropagationLayer& timeBin=*(fTrSec[s]->GetLayer(nr+1)); - Double_t sy2=ExpectedSigmaY2(t.GetX(),t.GetTgl(),t.GetPt()); - Double_t sz2=ExpectedSigmaZ2(t.GetX(),t.GetTgl()); - if((t.GetSigmaY2() + sy2) < 0) break; - Double_t road = 10.*sqrt(t.GetSigmaY2() + sy2); - Double_t y=t.GetY(), z=t.GetZ(); - - wYrt = (Float_t) y; - wZrt = (Float_t) z; - wYwindow = (Float_t) road; - t.GetPxPyPz(px,py,pz); - wPx = (Float_t) px; - wPy = (Float_t) py; - wPz = (Float_t) pz; - wC = (Float_t) t.GetC(); - wSigmaC2 = (Float_t) t.GetSigmaC2(); - wSigmaTgl2 = (Float_t) t.GetSigmaTgl2(); - wSigmaY2 = (Float_t) t.GetSigmaY2(); - wSigmaZ2 = (Float_t) t.GetSigmaZ2(); - wChi2 = -1; - - if (road>fgkWideRoad) { - if (t.GetNumberOfClusters()>4) - cerr< 345.0) { + t.SetNExpectedLast(t.GetNExpectedLast() + 1); } - - if (nRefPlane == fgkFirstPlane) maxChi2 = 20 * fgkMaxChi2; - if (nRefPlane == fgkFirstPlane+2) maxChi2 = 15 * fgkMaxChi2; - if (t.GetNRotate() > 0) maxChi2 = 3 * maxChi2; - - - wYclosest = 12345678; - wYcorrect = 12345678; - wZclosest = 12345678; - wZcorrect = 12345678; - wZwindow = TMath::Sqrt(2.25 * 12 * sz2); - - // Find the closest correct cluster for debugging purposes - if (timeBin) { - minDY = 1000000; - for (Int_t i=0; iGetLabel(0) != trackIndex) && - (c->GetLabel(1) != trackIndex) && - (c->GetLabel(2) != trackIndex)) continue; - if(TMath::Abs(c->GetY() - y) > minDY) continue; - //minDY = TMath::Abs(c->GetY() - y); - minDY = c->GetY() - y; - wYcorrect = c->GetY(); - wZcorrect = c->GetZ(); - - Double_t h01 = GetTiltFactor(c); - wChi2 = t.GetPredictedChi2(c, h01); - } - } + 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) { + index = clusters[ilayer]; + cl = (AliTRDcluster *)GetCluster(index); + //Double_t h01 = GetTiltFactor(cl); // I.B's fix + //maxChi2=t.GetPredictedChi2(cl,h01); // + } + + if (cl) { - // Now go for the real cluster search + //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.GetX() > 345.0) { + t.SetNLast(t.GetNLast() + 1); + t.SetChi2Last(t.GetChi2Last() + maxChi2); + } + Double_t xcluster = cl->GetX(); + t.PropagateTo(xcluster,radLength,rho); + maxChi2 = t.GetPredictedChi2(cl,h01); + + if (maxChi2<1e+10) + if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) { + if (!t.Update(cl,maxChi2,index,h01)) { + // ???? + } + } + + if (calibra->GetMITracking()) { + calibra->UpdateHistograms(cl,&t); + } - if (timeBin) { + // 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); + } + } - for (Int_t i=timeBin.Find(y-road); iGetY() > y+road) break; - if (c->IsUsed() > 0) continue; - if((c->GetZ()-z)*(c->GetZ()-z) > 3 * sz2) continue; + } - Double_t h01 = GetTiltFactor(c); - chi2=t.GetPredictedChi2(c,h01); - - if (chi2 > maxChi2) continue; - maxChi2=chi2; - cl=c; - index=timeBin.GetIndex(i); - - //check is correct - if((c->GetLabel(0) != trackIndex) && - (c->GetLabel(1) != trackIndex) && - (c->GetLabel(2) != trackIndex)) t.AddNWrong(); - } - - if(!cl) { - - for (Int_t i=timeBin.Find(y-road); iGetY() > y+road) break; - if (c->IsUsed() > 0) continue; - if((c->GetZ()-z)*(c->GetZ()-z) > 2.25 * 12 * sz2) continue; - - Double_t h01 = GetTiltFactor(c); - chi2=t.GetPredictedChi2(c,h01); - - if (chi2 > maxChi2) continue; - maxChi2=chi2; - cl=c; - index=timeBin.GetIndex(i); - } - } - - if (cl) { - wYclosest = cl->GetY(); - wZclosest = cl->GetZ(); - - t.SetSampledEdx(cl->GetQ()/dx,t.GetNumberOfClusters()); - Double_t h01 = GetTiltFactor(cl); - Int_t det = cl->GetDetector(); - Int_t plane = fGeom->GetPlane(det); - - if(!t.UpdateMI(cl,maxChi2,index,h01,plane)) { - //if(!t.Update(cl,maxChi2,index,h01)) { - if(!tryAgain--) return 0; - } - else tryAgain=fMaxGap; - } - else { - if (tryAgain==0) break; - tryAgain--; - - //if (minDY < 1000000 && isNewLayer) - //cout << "\t" << nRefPlane << "\t" << "\t" << t.GetNRotate() << "\t" << - // road << "\t" << minDY << "\t" << chi2 << "\t" << wChi2 << "\t" << maxChi2 << endl; - - } + } - isNewLayer = kFALSE; + } - /* - if((((Int_t) wTB)%15 == 0) || (((Int_t) wTB)%15 == 14)) { - - printf(" %f", wIndex); //1 - printf(" %f", wTB); //2 - printf(" %f", wYrt); //3 - printf(" %f", wYclosest); //4 - printf(" %f", wYcorrect); //5 - printf(" %f", wYwindow); //6 - printf(" %f", wZrt); //7 - printf(" %f", wZclosest); //8 - printf(" %f", wZcorrect); //9 - printf(" %f", wZwindow); //10 - printf(" %f", wPx); //11 - printf(" %f", wPy); //12 - printf(" %f", wPz); //13 - printf(" %f", wSigmaC2*1000000); //14 - printf(" %f", wSigmaTgl2*1000); //15 - printf(" %f", wSigmaY2); //16 - // printf(" %f", wSigmaZ2); //17 - printf(" %f", wChi2); //17 - printf(" %f", wC); //18 - printf("\n"); - } - */ - } - } + 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 + } + } - if (nr this function + // extrapolates the track up to radial position . + // Returns 1 if track reaches the plane, and 0 otherwise + // - Int_t iCluster[90]; - for (Int_t i = 0; i < 90; i++) iCluster[i] = 0; - for (Int_t i = 0; i < t.GetNumberOfClusters(); i++) { - Int_t index = t.GetClusterIndex(i); - AliTRDcluster *cl=(AliTRDcluster*) GetCluster(index); - if (!cl) continue; - Int_t detector=cl->GetDetector(); - Int_t localTimeBin=cl->GetLocalTimeBin(); - Int_t sector=fGeom->GetSector(detector); - Int_t plane=fGeom->GetPlane(detector); + 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) { - Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); - if(gtb < 0) continue; - Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb); - iCluster[layer] = index; - } - t.ResetClusters(); + Double_t step = dir * TMath::Min(TMath::Abs(xToGo-xpos),maxStep); - Int_t ns=Int_t(2*TMath::Pi()/AliTRDgeometry::GetAlpha()+0.5); + 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); + x = xpos + step; - Double_t alpha=t.GetAlpha(); - alpha = TVector2::Phi_0_2pi(alpha); + if (!t.GetProlongation(x,y,z)) { + return 0; // No prolongation + } - Int_t s=Int_t(alpha/AliTRDgeometry::GetAlpha())%AliTRDgeometry::kNsect; - Double_t radLength, rho, x, dx, y, ymax, z; + 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; - Int_t expectedNumberOfClusters = 0; - Bool_t lookForCluster; - - alpha=AliTRDgeometry::GetAlpha(); // note: change in meaning - - - for (Int_t nr=fTrSec[0]->GetLayerNumber(t.GetX()); nr>rf; nr--) { - - y = t.GetY(); z = t.GetZ(); - - // first propagate to the inner surface of the current time bin - fTrSec[s]->GetLayer(nr)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - x = fTrSec[s]->GetLayer(nr)->GetX()-dx/2; y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,radLength,rho)) break; - y = t.GetY(); - ymax = x*TMath::Tan(0.5*alpha); - if (y > ymax) { - s = (s+1) % ns; - if (!t.Rotate(alpha)) break; - if(!t.PropagateTo(x,radLength,rho)) break; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) break; - if(!t.PropagateTo(x,radLength,rho)) break; - } - - y = t.GetY(); z = t.GetZ(); - - // now propagate to the middle plane of the next time bin - fTrSec[s]->GetLayer(nr-1)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - x = fTrSec[s]->GetLayer(nr-1)->GetX(); y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,radLength,rho)) break; - y = t.GetY(); - ymax = x*TMath::Tan(0.5*alpha); - if (y > ymax) { - s = (s+1) % ns; - if (!t.Rotate(alpha)) break; - if(!t.PropagateTo(x,radLength,rho)) break; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) break; - if(!t.PropagateTo(x,radLength,rho)) break; - } - - if(lookForCluster) expectedNumberOfClusters++; - - // use assigned cluster - if (!iCluster[nr-1]) continue; - AliTRDcluster *cl=(AliTRDcluster*)GetCluster(iCluster[nr-1]); - Double_t h01 = GetTiltFactor(cl); - Double_t chi2=t.GetPredictedChi2(cl, h01); - t.SetSampledEdx(cl->GetQ()/dx,t.GetNumberOfClusters()); - t.Update(cl,chi2,iCluster[nr-1],h01); - } - - return expectedNumberOfClusters; -} - -//___________________________________________________________________ - -Int_t AliTRDtracker::PropagateToOuterPlane(AliTRDtrack& t, Double_t xToGo) -{ - // Starting from current radial position of track this function - // extrapolates the track up to radial position . - // Returns 1 if track reaches the plane, and 0 otherwise - - Int_t ns=Int_t(2*TMath::Pi()/AliTRDgeometry::GetAlpha()+0.5); - - Double_t alpha=t.GetAlpha(); - - if (alpha > 2.*TMath::Pi()) alpha -= 2.*TMath::Pi(); - if (alpha < 0. ) alpha += 2.*TMath::Pi(); - - Int_t s=Int_t(alpha/AliTRDgeometry::GetAlpha())%AliTRDgeometry::kNsect; - - Bool_t lookForCluster; - Double_t radLength, rho, x, dx, y, ymax, z; - - x = t.GetX(); - - alpha=AliTRDgeometry::GetAlpha(); // note: change in meaning - - Int_t plToGo = fTrSec[0]->GetLayerNumber(xToGo); - - for (Int_t nr=fTrSec[0]->GetLayerNumber(x); nrGetLayer(nr)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - x = fTrSec[s]->GetLayer(nr)->GetX()+dx/2; y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,radLength,rho)) return 0; - y = t.GetY(); - ymax = x*TMath::Tan(0.5*alpha); - if (y > ymax) { - s = (s+1) % ns; - if (!t.Rotate(alpha)) return 0; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) return 0; - } - if(!t.PropagateTo(x,radLength,rho)) return 0; - - y = t.GetY(); z = t.GetZ(); - - // now propagate to the middle plane of the next time bin - fTrSec[s]->GetLayer(nr+1)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - x = fTrSec[s]->GetLayer(nr+1)->GetX(); y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,radLength,rho)) return 0; - y = t.GetY(); - ymax = x*TMath::Tan(0.5*alpha); - if (y > ymax) { - s = (s+1) % ns; - if (!t.Rotate(alpha)) return 0; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) return 0; - } - if(!t.PropagateTo(x,radLength,rho)) return 0; - } - return 1; -} - -//___________________________________________________________________ - -Int_t AliTRDtracker::PropagateToTPC(AliTRDtrack& t) -{ - // Starting from current radial position of track this function - // extrapolates the track up to radial position of the outermost - // padrow of the TPC. - // Returns 1 if track reaches the TPC, and 0 otherwise - - //Int_t ns=Int_t(2*TMath::Pi()/AliTRDgeometry::GetAlpha()+0.5); - - Double_t alpha=t.GetAlpha(); - alpha = TVector2::Phi_0_2pi(alpha); - - Int_t s=Int_t(alpha/AliTRDgeometry::GetAlpha())%AliTRDgeometry::kNsect; - - Bool_t lookForCluster; - Double_t radLength, rho, x, dx, y, /*ymax,*/ z; - - x = t.GetX(); - - alpha=AliTRDgeometry::GetAlpha(); // note: change in meaning - Int_t plTPC = fTrSec[0]->GetLayerNumber(246.055); - - for (Int_t nr=fTrSec[0]->GetLayerNumber(x); nr>plTPC; nr--) { - - y = t.GetY(); - z = t.GetZ(); - - // first propagate to the outer surface of the current time bin - fTrSec[s]->GetLayer(nr)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - x = fTrSec[s]->GetLayer(nr)->GetX()-dx/2; - - if(!t.PropagateTo(x,radLength,rho)) return 0; + AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); + if (!t.PropagateTo(x,param[1],param[0])) { + return 0; + } AdjustSector(&t); - if(!t.PropagateTo(x,radLength,rho)) return 0; + xpos = t.GetX(); - y = t.GetY(); - z = t.GetZ(); - - // now propagate to the middle plane of the next time bin - fTrSec[s]->GetLayer(nr-1)->GetPropagationParameters(y,z,dx,rho,radLength,lookForCluster); - x = fTrSec[s]->GetLayer(nr-1)->GetX(); - - if(!t.PropagateTo(x,radLength,rho)) return 0; - AdjustSector(&t); - if(!t.PropagateTo(x,radLength,rho)) return 0; } - return 1; -} - -void AliTRDtracker::LoadEvent() -{ - // Fills clusters into TRD tracking_sectors - // Note that the numbering scheme for the TRD tracking_sectors - // differs from that of TRD sectors - - ReadClusters(fClusters); - Int_t ncl=fClusters->GetEntriesFast(); - cout<<"LoadSectors: sorting "<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); - - Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); - if(gtb < 0) continue; - Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb); - index=ncl; - fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index); - } - // printf("\r\n"); + 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 + // if (ReadClusters(fClusters,cTree)) { - Error("LoadClusters","Problem with reading the clusters !"); + AliError("Problem with reading the clusters !"); return 1; } - Int_t ncl=fClusters->GetEntriesFast(); - 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; + for (Int_t ichamber = 0; ichamber < 5; ichamber++) { + for (Int_t isector = 0; isector < 18; isector++) { + fHoles[ichamber][isector] = kTRUE; } - + } 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){ + + 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; + + //if (c->GetLabel(0) > 0) { + if (c->GetQ() > 10) { Int_t chamber = fGeom->GetChamber(detector); - fHoles[chamber][trackingSector]=kFALSE; + fHoles[chamber][trackingSector] = kFALSE; } Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); - if(gtb < 0) continue; + if (gtb < 0) { + continue; + } Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb); - index=ncl; + index = ncl; + + // Apply pos correction + Transform(c); + fHXCl->Fill(c->GetX()); + + fTrSec[trackingSector]->GetLayer(layer)->SetX(c->GetX()); fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index); - } - // printf("\r\n"); - // - // - /* - for (Int_t isector=0;isector<18;isector++){ - for (Int_t ichamber=0;ichamber<5;ichamber++) - if (fHoles[ichamber][isector]!=fGeom->IsHole(0,ichamber,17-isector)) - printf("Problem \t%d\t%d\t%d\t%d\n",isector,ichamber,fHoles[ichamber][isector], - fGeom->IsHole(0,ichamber,17-isector)); } - */ + return 0; + } //_____________________________________________________________________________ -void AliTRDtracker::UnloadEvent() +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(); @@ -1943,299 +1520,1175 @@ void AliTRDtracker::UnloadEvent() } -//__________________________________________________________________________ -void AliTRDtracker::MakeSeeds(Int_t inner, Int_t outer, Int_t turn) +//_____________________________________________________________________________ +void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESD *esd) { - // Creates track seeds using clusters in timeBins=i1,i2 + // + // Creates seeds using clusters between position inner plane and outer plane + // - if(turn > 2) { - cerr<<"MakeSeeds: turn "<GetLayerNumber(inner); - Int_t i1 = fTrSec[0]->GetLayerNumber(outer); - - Double_t x1 =fTrSec[0]->GetX(i1); - Double_t xx2=fTrSec[0]->GetX(i2); - - for (Int_t ns=0; nsGetLayer(i2)); - Int_t nl=(*fTrSec[(ns-1+maxSec)%maxSec]->GetLayer(i2)); - Int_t nm=(*fTrSec[ns]->GetLayer(i2)); - Int_t nu=(*fTrSec[(ns+1)%maxSec]->GetLayer(i2)); - Int_t nu2=(*fTrSec[(ns+2)%maxSec]->GetLayer(i2)); - - AliTRDpropagationLayer& r1=*(fTrSec[ns]->GetLayer(i1)); - - for (Int_t is=0; is < r1; is++) { - Double_t y1=r1[is]->GetY(), z1=r1[is]->GetZ(); - - for (Int_t js=0; js < nl2+nl+nm+nu+nu2; js++) { - - const AliTRDcluster *cl; - Double_t x2, y2, z2; - Double_t x3=0., y3=0.; - - if (jsGetLayer(i2)); - cl=r2[js]; - y2=cl->GetY(); z2=cl->GetZ(); - - x2= xx2*cs2+y2*sn2; - y2=-xx2*sn2+y2*cs2; - } - else if (jsGetLayer(i2)); - cl=r2[js-nl2]; - y2=cl->GetY(); z2=cl->GetZ(); - - x2= xx2*cs+y2*sn; - y2=-xx2*sn+y2*cs; - } - else if (jsGetLayer(i2)); - cl=r2[js-nl2-nl]; - x2=xx2; y2=cl->GetY(); z2=cl->GetZ(); - } - else if (jsGetLayer(i2)); - cl=r2[js-nl2-nl-nm]; - y2=cl->GetY(); z2=cl->GetZ(); - - x2=xx2*cs-y2*sn; - y2=xx2*sn+y2*cs; - } - else { - if(turn != 2) continue; - AliTRDpropagationLayer& r2=*(fTrSec[(ns+2)%maxSec]->GetLayer(i2)); - cl=r2[js-nl2-nl-nm-nu]; - y2=cl->GetY(); z2=cl->GetZ(); - - x2=xx2*cs2-y2*sn2; - y2=xx2*sn2+y2*cs2; - } - - if(TMath::Abs(z1-z2) > fgkMaxSeedDeltaZ12) continue; - - Double_t zz=z1 - z1/x1*(x1-x2); - - if (TMath::Abs(zz-z2)>fgkMaxSeedDeltaZ) continue; - - Double_t d=(x2-x1)*(0.-y2)-(0.-x2)*(y2-y1); - if (d==0.) {cerr<<"TRD MakeSeeds: Straight seed !\n"; continue;} - - x[0]=y1; - x[1]=z1; - x[4]=f1trd(x1,y1,x2,y2,x3,y3); - - if (TMath::Abs(x[4]) > fgkMaxSeedC) continue; - - x[2]=f2trd(x1,y1,x2,y2,x3,y3); - - if (TMath::Abs(x[4]*x1-x[2]) >= 0.99999) continue; - - x[3]=f3trd(x1,y1,x2,y2,z1,z2); - - if (TMath::Abs(x[3]) > fgkMaxSeedTan) continue; - - Double_t a=asin(x[2]); - Double_t zv=z1 - x[3]/x[4]*(a+asin(x[4]*x1-x[2])); - - if (TMath::Abs(zv)>fgkMaxSeedVertexZ) continue; - - Double_t sy1=r1[is]->GetSigmaY2(), sz1=r1[is]->GetSigmaZ2(); - Double_t sy2=cl->GetSigmaY2(), sz2=cl->GetSigmaZ2(); - Double_t sy3=fgkSeedErrorSY3, sy=fgkSeedErrorSY, sz=fgkSeedErrorSZ; - - // Tilt changes - Double_t h01 = GetTiltFactor(r1[is]); - Double_t xuFactor = 100.; - if(fNoTilt) { - h01 = 0; - xuFactor = 1; - } + const Double_t kRoad0y = 6.0; // Road for middle cluster + const Double_t kRoad0z = 8.5; // Road for middle cluster - sy1=sy1+sz1*h01*h01; - Double_t syz=sz1*(-h01); - // end of tilt changes - - Double_t f40=(f1trd(x1,y1+sy,x2,y2,x3,y3)-x[4])/sy; - Double_t f42=(f1trd(x1,y1,x2,y2+sy,x3,y3)-x[4])/sy; - Double_t f43=(f1trd(x1,y1,x2,y2,x3,y3+sy)-x[4])/sy; - Double_t f20=(f2trd(x1,y1+sy,x2,y2,x3,y3)-x[2])/sy; - Double_t f22=(f2trd(x1,y1,x2,y2+sy,x3,y3)-x[2])/sy; - Double_t f23=(f2trd(x1,y1,x2,y2,x3,y3+sy)-x[2])/sy; - Double_t f30=(f3trd(x1,y1+sy,x2,y2,z1,z2)-x[3])/sy; - Double_t f31=(f3trd(x1,y1,x2,y2,z1+sz,z2)-x[3])/sz; - Double_t f32=(f3trd(x1,y1,x2,y2+sy,z1,z2)-x[3])/sy; - Double_t f34=(f3trd(x1,y1,x2,y2,z1,z2+sz)-x[3])/sz; + const Double_t kRoad1y = 2.0; // Road in y for seeded cluster + const Double_t kRoad1z = 20.0; // Road in z for seeded cluster - - c[0]=sy1; - // c[1]=0.; c[2]=sz1; - c[1]=syz; c[2]=sz1*xuFactor; - c[3]=f20*sy1; c[4]=0.; c[5]=f20*sy1*f20+f22*sy2*f22+f23*sy3*f23; - c[6]=f30*sy1; c[7]=f31*sz1; c[8]=f30*sy1*f20+f32*sy2*f22; - c[9]=f30*sy1*f30+f31*sz1*f31+f32*sy2*f32+f34*sz2*f34; - c[10]=f40*sy1; c[11]=0.; c[12]=f40*sy1*f20+f42*sy2*f22+f43*sy3*f23; - c[13]=f30*sy1*f40+f32*sy2*f42; - c[14]=f40*sy1*f40+f42*sy2*f42+f43*sy3*f43; - - UInt_t index=r1.GetIndex(is); - - AliTRDtrack *track=new AliTRDtrack(r1[is],index,x,c,x1,ns*alpha+shift); + 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 rc=FollowProlongation(*track, i2); - - if ((rc < 1) || - (track->GetNumberOfClusters() < - (outer-inner)*fgkMinClustersInSeed)) delete track; - else { - fSeeds->AddLast(track); fNseeds++; -// cerr<<"\r found seed "<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 (ilayer < layers[plane][0]) { + layers[plane][0] = ilayer; + } + if (ilayer > layers[plane][1]) { + layers[plane][1] = ilayer; } } } -} - -//_____________________________________________________________________________ -Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *ClusterTree) -{ - // - // Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0) - // from the file. The names of the cluster tree and branches - // should match the ones used in AliTRDclusterizer::WriteClusters() - // - TObjArray *clusterArray = new TObjArray(400); - - TBranch *branch=ClusterTree->GetBranch("TRDcluster"); - if (!branch) { - Error("ReadClusters","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; - AliTRDcluster *c = 0; - // printf("\n"); - for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) { - - // Import the tree - 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); - AliTRDcluster *co = new AliTRDcluster(*c); - co->SetSigmaY2(c->GetSigmaY2() * fSY2corr); - Int_t ltb = co->GetLocalTimeBin(); - if(ltb == 19) co->SetSigmaZ2(c->GetSigmaZ2()); - else if(fNoTilt) co->SetSigmaZ2(c->GetSigmaZ2() * fSZ2corr); - array->AddLast(co); - delete clusterArray->RemoveAt(iCluster); + AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->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] = { 10.0, 10.0, 10.0, 10.0, 10.0, 10.0 }; // Current pad-length + + Double_t chi2R = 0.0; + Double_t chi2Z = 0.0; + Double_t chi2RF = 0.0; + Double_t chi2ZF = 0.0; + + Int_t nclusters; // Total number of clusters + for (Int_t i = 0; i < 6; i++) { + hL[i] = h01; + if (i%2==1) { + hL[i]*=-1.0; } } - delete clusterArray; + // Registered seed + AliTRDseed *pseed = new AliTRDseed[kMaxSeed*6]; + AliTRDseed *seed[kMaxSeed]; + for (Int_t iseed = 0; iseed < kMaxSeed; iseed++) { + seed[iseed]= &pseed[iseed*6]; + } + AliTRDseed *cseed = seed[0]; - return 0; -} + 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]; -//______________________________________________________________________ -void AliTRDtracker::ReadClusters(TObjArray *array, const Char_t *filename) -{ // - // Reads AliTRDclusters from file . The names of the cluster - // tree and branches should match the ones used in - // AliTRDclusterizer::WriteClusters() - // if == 0, clusters are added into AliTRDtracker fCluster array + // Seeding part // + for (Int_t ns = 0; ns < maxSec; ns++) { // Loop over sectors + //for (Int_t ns = 0; ns < 5; ns++) { // Loop over sectors - TDirectory *savedir=gDirectory; + registered = 0; // Reset registerd seed counter + cseed = seed[registered]; + Float_t iter = 0.0; - TFile *file = TFile::Open(filename); - if (!file->IsOpen()) { - cerr<<"Can't open file with TRD clusters"<= 0; sLayer--) { + //for (Int_t dseed = 5; dseed < 15; dseed += 3) { - Char_t treeName[12]; - sprintf(treeName,"TreeR%d_TRD",GetEventNumber()); - TTree *clusterTree = (TTree*) gDirectory->Get(treeName); + iter += 1.0; + Int_t dseed = 5 + Int_t(iter) * 3; - if (!clusterTree) { - cerr<<"AliTRDtracker::ReadClusters(): "; - cerr<<"can't get a tree with clusters !\n"; - return; - } + // Initialize seeding layers + for (Int_t ilayer = 0; ilayer < 6; ilayer++) { + reflayers[ilayer] = fTrSec[ns]->GetLayer(layers[ilayer][1]-dseed); + xcl[ilayer] = reflayers[ilayer]->GetX(); + } - TObjArray *clusterArray = new TObjArray(400); + 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]; - clusterTree->GetBranch("TRDcluster")->SetAddress(&clusterArray); + Int_t maxn3 = layer3; + for (Int_t icl3 = 0; icl3 < maxn3; icl3++) { - Int_t nEntries = (Int_t) clusterTree->GetEntries(); - cout<<"found "<GetSigmaZ2() * 12.0); + ycl[sLayer+3] = cl3->GetY(); + zcl[sLayer+3] = cl3->GetZ(); + Float_t yymin0 = ycl[sLayer+3] - 1.0 - kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); + Float_t yymax0 = ycl[sLayer+3] + 1.0 + kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]); + Int_t maxn0 = layer0; + + for (Int_t icl0 = layer0.Find(yymin0); icl0 < maxn0; icl0++) { + + AliTRDcluster *cl0 = layer0[icl0]; + 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) > 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; + } + Int_t nusedCl = 0; + if (cl3->IsUsed()) nusedCl++; + if (cl0->IsUsed()) nusedCl++; + if (cl1->IsUsed()) nusedCl++; + 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() * 12.0); + + 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++) { + cseed[iLayer].Reset(); + } + 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) > 1.0/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 (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].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 + // + AliTRDseed tseed = cseed[sLayer+jLayer]; + 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.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.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; + } + } + if (tseed.IsOK() && (tquality < quality)) { + cseed[sLayer+jLayer] = tseed; + } + + } // Loop: iter + + if (!cseed[sLayer+jLayer].IsOK()) { + isOK = kFALSE; + break; + } + + cseed[sLayer+jLayer].CookLabels(); + cseed[sLayer+jLayer].UpdateUsed(); + nusedCl += cseed[sLayer+jLayer].GetNUsed(); + if (nusedCl > 25) { + isOK = kFALSE; + break; + } + + } // Loop: jLayer + + if (!isOK) { + continue; + } + nclusters = 0; + for (Int_t iLayer = 0; iLayer < 4; iLayer++) { + if (cseed[sLayer+iLayer].IsOK()) { + nclusters += cseed[sLayer+iLayer].GetN2(); + } + } + + // Iteration 0 + rieman.Reset(); + 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 = 0.0; + 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].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; + } + AliTRDseed seedb[6]; + 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; + + // + // Add new layers - avoid long extrapolation + // + 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].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].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 = 10000.0; + + 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.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 (tquality < quality) { + cseed[jLayer] = tseed; + quality = tquality; + } + } + + zroad *= 2.0; + + } // Loop: iter + + if ( cseed[jLayer].IsOK()) { + cseed[jLayer].CookLabels(); + cseed[jLayer].UpdateUsed(); + nusedf += cseed[jLayer].GetNUsed(); + AliTRDseed::FitRiemanTilt(cseed,kTRUE); + } + + } // Loop: iLayer + + // Make copy + AliTRDseed bseed[6]; + for (Int_t jLayer = 0; jLayer < 6; jLayer++) { + bseed[jLayer] = cseed[jLayer]; + } + Float_t lastquality = 10000.0; + Float_t lastchi2 = 10000.0; + Float_t chi2 = 1000.0; + + for (Int_t iter = 0; iter < 4; iter++) { + + // Sort tracklets according "quality", try to "improve" 4 worst + Float_t sumquality = 0.0; + Float_t squality[6]; + Int_t sortindexes[6]; + + for (Int_t jLayer = 0; jLayer < 6; jLayer++) { + if (bseed[jLayer].IsOK()) { + AliTRDseed &tseed = bseed[jLayer]; + Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); + 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) - zcor)) / 0.2 + + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; + squality[jLayer] = tquality; + } + else { + squality[jLayer] = -1.0; + } + sumquality +=squality[jLayer]; + } + + if ((sumquality >= lastquality) || + (chi2 > lastchi2)) { + break; + } + lastquality = sumquality; + lastchi2 = chi2; + 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--) { + + 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.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.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.GetYfit(1) - tseed.GetYref(1); + Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0)); + Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + + TMath::Abs(dangle) / 0.1 + + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2 + + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer]; + if (tquality padlength[iLayer] * 0.5 + 1.0) { + acceptablez = kFALSE; + } + } + } + if (!acceptablez) { + 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 chi2TC = fitterTC.GetChisquare() / Float_t(npointsT); + Double_t polz1c = fitterTC.GetParameter(2); + 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 + 1.0); // Curvature + Double_t aR = fitterT2.GetParameter(0); + Double_t bR = fitterT2.GetParameter(1); + Double_t dR = fitterT2.GetParameter(2); + 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 = 0.0; + 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 - 3.0),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 + // + 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) +// seed[index][jLayer].UseClusters(); //sign gold +// } +// } + + Int_t index0 = 0; + if (!cseed[0].IsOK()) { + index0 = 1; + if (!cseed[1].IsOK()) { + index0 = 2; + } + } + 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]; + 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].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].SetFreq(frequency); + cseed[iLayer].SetC(cR); + cseed[iLayer].SetCC(cC); + cseed[iLayer].SetChi2(chi2TR); + cseed[iLayer].SetChi2Z(chi2ZF); + } + + // Debugging print + if (1 || (!isFake)) { + Float_t zvertex = GetZ(); + TTreeSRedirector &cstream = *fDebugStreamer; + if (AliTRDReconstructor::StreamLevel() > 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 (registeredGetEvent(iEntry); + for (Int_t iseed = 0; iseed < registered; iseed++) { + + Int_t index = sort[iseed]; + if (signedseed[index]) { + continue; + } + Int_t labelsall[1000]; + Int_t nlabelsall = 0; + Int_t naccepted = 0;; + Int_t sLayer = seedlayer[index]; + Int_t ncl = 0; + Int_t nused = 0; + Int_t nlayers = 0; + Int_t findable = 0; + + for (Int_t jLayer = 0; jLayer < 6; jLayer++) { + + if (TMath::Abs(seed[index][jLayer].GetYref(0) / xcl[jLayer]) < 0.15) { + findable++; + } + if (seed[index][jLayer].IsOK()) { + seed[index][jLayer].UpdateUsed(); + ncl +=seed[index][jLayer].GetN2(); + nused +=seed[index][jLayer].GetNUsed(); + nlayers++; + // Cooking label + for (Int_t itime = 0; itime < 25; itime++) { + if (seed[index][jLayer].IsUsable(itime)) { + naccepted++; + 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++; + } + } + } + } + } - // Get the number of points in the detector - Int_t nCluster = clusterArray->GetEntriesFast(); - // printf("\n 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); - AliTRDcluster *co = new AliTRDcluster(*c); - co->SetSigmaY2(c->GetSigmaY2() * fSY2corr); - Int_t ltb = co->GetLocalTimeBin(); - if(ltb == 19) co->SetSigmaZ2(c->GetSigmaZ2()); - else if(fNoTilt) co->SetSigmaZ2(c->GetSigmaZ2() * fSZ2corr); - array->AddLast(co); - delete clusterArray->RemoveAt(iCluster); - } - } + if (nused > 30) { + continue; + } - file->Close(); - delete clusterArray; - savedir->cd(); + if (iter == 0) { + if (nlayers < 6) { + continue; + } + if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { + continue; // Gold + } + } + + if (iter == 1) { + if (nlayers < findable) { + continue; + } + if (TMath::Log(0.000000001+seedquality2[index]) < -4.0) { + continue; + } + } + + if (iter == 2) { + if ((nlayers == findable) || + (nlayers == 6)) { + continue; + } + if (TMath::Log(0.000000001+seedquality2[index]) < -6.0) { + continue; + } + } + + if (iter == 3) { + if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) { + continue; + } + } + + if (iter == 4) { + if (TMath::Log(0.000000001+seedquality2[index]) - nused/(nlayers-3.0) < -15.0) { + continue; + } + } + + signedseed[index] = kTRUE; + + 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].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]; + 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].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; + + // + // Register seed + // + AliTRDtrack *track = RegisterSeed(seed[index],seedparams[index]); + AliTRDtrack dummy; + if (!track) { + track = &dummy; + } + else { + AliESDtrack esdtrack; + esdtrack.UpdateTrackParams(track,AliESDtrack::kTRDout); + esdtrack.SetLabel(label); + esd->AddTrack(&esdtrack); + TTreeSRedirector &cstream = *fDebugStreamer; + if (AliTRDReconstructor::StreamLevel() > 0) { + cstream << "Tracks" + << "EventNrInFile=" << eventNrInFile + << "ESD.=" << &esdtrack + << "trd.=" << track + << "trdback.=" << track + << "\n"; + } + } + + if (AliTRDReconstructor::StreamLevel() > 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; -void AliTRDtracker::ReadClusters(TObjArray *array, const TFile *inp) +} + +//_____________________________________________________________________________ +Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *clusterTree) const { // // Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0) @@ -2243,35 +2696,20 @@ void AliTRDtracker::ReadClusters(TObjArray *array, const TFile *inp) // should match the ones used in AliTRDclusterizer::WriteClusters() // - TDirectory *savedir=gDirectory; - - if (inp) { - TFile *in=(TFile*)inp; - if (!in->IsOpen()) { - cerr<<"AliTRDtracker::ReadClusters(): input file is not open !\n"; - return; - } - else{ - in->cd(); - } - } - - Char_t treeName[12]; - sprintf(treeName,"TreeR%d_TRD",GetEventNumber()); - TTree *clusterTree = (TTree*) gDirectory->Get(treeName); + Int_t nsize = Int_t(clusterTree->GetTotBytes() / (sizeof(AliTRDcluster))); + TObjArray *clusterArray = new TObjArray(nsize+1000); - TObjArray *clusterArray = new TObjArray(400); - - clusterTree->GetBranch("TRDcluster")->SetAddress(&clusterArray); - - Int_t nEntries = (Int_t) clusterTree->GetEntries(); - // printf("found %d entries in %s.\n",nEntries,clusterTree->GetName()); + TBranch *branch = clusterTree->GetBranch("TRDcluster"); + if (!branch) { + AliError("Can't get the branch !"); + return 1; + } + branch->SetAddress(&clusterArray); // 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 @@ -2279,70 +2717,124 @@ void AliTRDtracker::ReadClusters(TObjArray *array, const TFile *inp) // 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); - AliTRDcluster *co = new AliTRDcluster(*c); - co->SetSigmaY2(c->GetSigmaY2() * fSY2corr); - Int_t ltb = co->GetLocalTimeBin(); - if(ltb == 19) co->SetSigmaZ2(c->GetSigmaZ2()); - else if(fNoTilt) co->SetSigmaZ2(c->GetSigmaZ2() * fSZ2corr); + c = (AliTRDcluster *) clusterArray->UncheckedAt(iCluster); + AliTRDcluster *co = c; array->AddLast(co); - delete clusterArray->RemoveAt(iCluster); + clusterArray->RemoveAt(iCluster); } + } delete clusterArray; - savedir->cd(); + + return 0; + +} + +//_____________________________________________________________________________ +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); + Double_t local[3]; + 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; + switch (iplan) { + case 0: + iLayer = AliAlignObj::kTRD1; + break; + case 1: + iLayer = AliAlignObj::kTRD2; + break; + case 2: + iLayer = AliAlignObj::kTRD3; + break; + case 3: + iLayer = AliAlignObj::kTRD4; + break; + case 4: + iLayer = AliAlignObj::kTRD5; + break; + case 5: + iLayer = AliAlignObj::kTRD6; + break; + }; + Int_t modId = isector * fGeom->Ncham() + ichamber; + UShort_t volid = AliAlignObj::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++; } @@ -2350,63 +2842,85 @@ 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! // - Int_t ncl=t->GetNumberOfClusters(); - for (Int_t i=from; iGetClusterIndex(i); - AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(index); - c->Use(); - } -} + const Float_t kmaxchi2 = 18; + const Float_t kmincl = 10; + AliTRDtrack *track = (AliTRDtrack *) t; -//_____________________________________________________________________ -Double_t AliTRDtracker::ExpectedSigmaY2(Double_t , Double_t , Double_t ) const -{ - // Parametrised "expected" error of the cluster reconstruction in Y + 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->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 { // @@ -2415,372 +2929,212 @@ 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) +//_____________________________________________________________________________ +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; - - - 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, AliTRDparameter* par) +//_____________________________________________________________________________ +AliTRDtracker::AliTRDtrackingSector + ::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs) + :fN(0) + ,fGeom(geo) + ,fGeomSector(gs) { // // AliTRDtrackingSector Constructor // - fGeom = geo; - fPar = par; - fGeomSector = gs; - fTzeroShift = 0.13; - fN = 0; - // - // get holes description from geometry + AliTRDpadPlane *padPlane = 0; + AliTRDpropagationLayer *ppl = 0; + + // 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; - - Double_t x, xin, xout, dx, rho, radLength; - Int_t steps; - - // set time bins in the gas of the TPC - - xin = 246.055; xout = 254.055; steps = 20; dx = (xout-xin)/steps; - rho = 0.9e-3; radLength = 28.94; - - for(Int_t i=0; iRmin(); - - // add layers between TPC and TRD (Air temporarily) - xin = xout; xout = xtrd; - steps = 50; dx = (xout - xin)/steps; - rho = 1.2e-3; radLength = 36.66; - - for(Int_t i=0; iCroHght(); // Rohacell - Double_t dxSpace = (Double_t) fGeom->Cspace(); // Spacing between planes - Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region - Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region - Double_t dxRad = (Double_t) fGeom->CraHght(); // Radiator - Double_t dxTEC = dxRad + dxDrift + dxAmp + dxRo; - Double_t dxPlane = dxTEC + dxSpace; - - Int_t tb, tbIndex; - const Int_t kNchambers = AliTRDgeometry::Ncham(); - Double_t ymax = 0; - //, holeYmax = 0; - Double_t ymaxsensitive=0; - Double_t *zc = new Double_t[kNchambers]; - Double_t *zmax = new Double_t[kNchambers]; + 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 + //Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region + + const Int_t kNchambers = AliTRDgeometry::Ncham(); + Int_t tbIndex; + 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]; - // Double_t holeZmax = 1000.; // the whole sector is missing - for(Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) { - // - // Radiator - xin = xtrd + plane * dxPlane; xout = xin + dxRad; - steps = 12; dx = (xout - xin)/steps; rho = 0.074; radLength = 40.6; - for(Int_t i=0; iGetChamberWidth(plane) / 2.0; + padPlane = commonParam->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 = commonParam->GetRow0(plane,ch,0); + Int_t nPads = commonParam->GetRowMax(plane,ch,0); + zmaxsensitive[ch] = Float_t(nPads) * pad / 2.0; + zc[ch] = -(pad * nPads) / 2.0 + row0; } - ymax = fGeom->GetChamberWidth(plane)/2.; - ymaxsensitive = (fPar->GetColPadSize(plane)*fPar->GetColMax(plane)-4)/2.; - - for(Int_t ch = 0; ch < kNchambers; ch++) { - zmax[ch] = fGeom->GetChamberLength(plane,ch)/2; - Float_t pad = fPar->GetRowPadSize(plane,ch,0); - Float_t row0 = fPar->GetRow0(plane,ch,0); - Int_t nPads = fPar->GetRowMax(plane,ch,0); - zmaxsensitive[ch] = Float_t(nPads)*pad/2.; - // zc[ch] = (pad * nPads)/2 + row0 - pad/2; - zc[ch] = (pad * nPads)/2 + row0; - //zc[ch] = row0+zmax[ch]-AliTRDgeometry::RpadW(); + dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0) + / commonParam->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; - dx = fPar->GetTimeBinSize(); - rho = 0.00295 * 0.85; radLength = 11.0; + Int_t nTimeBins = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); + for (Int_t iTime = 0; iTime < nTimeBins; iTime++) { - Double_t x0 = (Double_t) fPar->GetTime0(plane); - Double_t xbottom = x0 - dxDrift; - Double_t xtop = x0 + dxAmp; - // - // Amplification region - steps = (Int_t) (dxAmp/dx); + Double_t xlayer = iTime * dx - dxAmp; + //if (xlayer<0) xlayer = dxAmp / 2.0; + x = x0 - xlayer; - for(tb = 0; tb < steps; tb++) { - x = x0 + tb * dx + dx/2; - tbIndex = CookTimeBinIndex(plane, -tb-1); - ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex); - ppl->SetYmax(ymax,ymaxsensitive); - ppl->SetZ(zc, zmax, zmaxsensitive); - ppl->SetHoles(holes); - InsertLayer(ppl); - } - tbIndex = CookTimeBinIndex(plane, -steps); - x = (x + dx/2 + xtop)/2; - dx = 2*(xtop-x); - ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex); - ppl->SetYmax(ymax,ymaxsensitive); - ppl->SetZ(zc, zmax,zmaxsensitive); - ppl->SetHoles(holes); - InsertLayer(ppl); - - // Drift region - dx = fPar->GetTimeBinSize(); - steps = (Int_t) (dxDrift/dx); - - for(tb = 0; tb < steps; tb++) { - x = x0 - tb * dx - dx/2; - tbIndex = CookTimeBinIndex(plane, tb); - - ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex); + tbIndex = CookTimeBinIndex(plane,iTime); + ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex,plane); ppl->SetYmax(ymax,ymaxsensitive); - ppl->SetZ(zc, zmax, zmaxsensitive); + ppl->SetZ(zc,zmax,zmaxsensitive); ppl->SetHoles(holes); - InsertLayer(ppl); - } - tbIndex = CookTimeBinIndex(plane, steps); - x = (x - dx/2 + xbottom)/2; - dx = 2*(x-xbottom); - ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex); - ppl->SetYmax(ymax,ymaxsensitive); - ppl->SetZ(zc, zmax, zmaxsensitive); - ppl->SetHoles(holes); - InsertLayer(ppl); - - // Pad Plane - xin = xtop; dx = 0.025; xout = xin + dx; rho = 1.7; radLength = 33.0; - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,radLength,-1); - ppl->SetYmax(ymax,ymaxsensitive); - ppl->SetZ(zc, zmax,zmax); - ppl->SetHoles(holes); - InsertLayer(ppl); - - // Rohacell - xin = xout; xout = xtrd + (plane + 1) * dxPlane - dxSpace; - steps = 5; dx = (xout - xin)/steps; rho = 0.074; radLength = 40.6; - for(Int_t i=0; iSetYmax(ymax,ymaxsensitive); - ppl->SetZ(zc, zmax,zmax); - ppl->SetHoles(holes); - InsertLayer(ppl); - } + InsertLayer(ppl); - // Space between the chambers, air - xin = xout; xout = xtrd + (plane + 1) * dxPlane; - steps = 5; dx = (xout - xin)/steps; rho = 1.29e-3; radLength = 36.66; - for(Int_t i=0; i in plane // + // - Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region - Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region - Double_t dx = (Double_t) fPar->GetTimeBinSize(); - - Int_t tbAmp = fPar->GetTimeBefore(); - Int_t maxAmp = (Int_t) ((dxAmp+0.000001)/dx); - if(kTRUE) maxAmp = 0; // intentional until we change parameter class - Int_t tbDrift = fPar->GetTimeMax(); - Int_t maxDrift = (Int_t) ((dxDrift+0.000001)/dx); - - Int_t tbPerPlane = TMath::Min(tbAmp,maxAmp) + TMath::Min(tbDrift,maxDrift); - - Int_t gtb = (plane+1) * tbPerPlane - localTB - 1 - TMath::Min(tbAmp,maxAmp); - - if((localTB < 0) && - (TMath::Abs(localTB) > TMath::Min(tbAmp,maxAmp))) return -1; - if(localTB >= TMath::Min(tbDrift,maxDrift)) return -1; + Int_t tbPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); + 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 @@ -2789,293 +3143,1257 @@ 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; - } - Double_t x1, dx1, x2, dx2, gap; + fTimeBinIndex[index] = i; - for(Int_t i = 0; i < fN-1; i++) { - x1 = fLayers[i]->GetX(); - dx1 = fLayers[i]->GetdX(); - x2 = fLayers[i+1]->GetX(); - dx2 = fLayers[i+1]->GetdX(); - gap = (x2 - dx2/2) - (x1 + dx1/2); - if(gap < -0.01) { - printf("*** warning: layers %d and %d are overlayed:\n",i,i+1); - printf(" %f + %f + %f > %f\n", x1, dx1/2, dx2/2, x2); - } - if(gap > 0.01) { - printf("*** warning: layers %d and %d have a large gap:\n",i,i+1); - printf(" (%f - %f) - (%f + %f) = %f\n", - x2, dx2/2, x1, dx1, gap); - } } -} - - -//______________________________________________________ +} -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; + + for ( ; b < e; m = (b + e) / 2) { + if (x > fLayers[m]->GetX()) { + b = m + 1; + } + else { + e = m; + } + } - Int_t b=0, e=fN-1, m=(b+e)/2; - for (; b 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)) { - printf("AliTRDtrackingSector::InsertLayer(): Too many layers !\n"); + if (fN == ((Int_t) kMaxLayersPerSector)) { + //AliWarning("Too many layers !\n"); 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++; + 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 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; + } + + 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; + } + + if (fN == (Int_t) kMaxClusterPerTimeBin) { + //AliWarning("Too many clusters !\n"); + 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 AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const +{ + // + // Returns index of the cluster nearest in Y + // + + if (fN <= 0) { + return 0; + } + if (y <= fClusters[0]->GetY()) { + return 0; + } + if (y > fClusters[fN-1]->GetY()) { + return fN; + } + + Int_t b = 0; + Int_t e = fN - 1; + Int_t m = (b + e) / 2; + + 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 +{ + // + // Returns index of the cluster nearest to the given y,z + // + + Int_t index = -1; + Int_t maxn = fN; + Float_t mindist = maxroad; + + for (Int_t i = Find(y-maxroad); i < maxn; i++) { + AliTRDcluster *c = (AliTRDcluster *) (fClusters[i]); + Float_t ycl = c->GetY(); + if (ycl > (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; +} -void AliTRDtracker::AliTRDpropagationLayer::GetPropagationParameters( - Double_t y, Double_t z, Double_t &dx, Double_t &rho, Double_t &radLength, - Bool_t &lookForCluster) const +//_____________________________________________________________________________ +Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster *c) { // - // Returns radial step , density , rad. length , - // and sensitivity in point + // Returns correction factor for tilted pads geometry // - dx = fdX; - rho = fRho; - radLength = fX0; - lookForCluster = kFALSE; + 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; + } + + return h01; + +} + +//_____________________________________________________________________________ +void AliTRDtracker::CookdEdxTimBin(AliTRDtrack &TRDtrack) +{ // - // check dead regions in sensitive volume - if(fTimeBinIndex >= 0) { + // 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[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; + Double_t maxclscharge[AliESDtrack::kNPlane]; + Int_t nCluster[AliESDtrack::kNPlane][AliESDtrack::kNSlice]; + Int_t timebin[AliESDtrack::kNPlane]; + + // Initialization of cluster charge per plane. + for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { + for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { + clscharge[iPlane][iSlice] = 0.0; + nCluster[iPlane][iSlice] = 0; + } + } + + // Initialization of cluster charge per plane. + for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { + 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 *pTRDcluster = (AliTRDcluster *) GetCluster(index); + if (!pTRDcluster) { + continue; + } + Int_t tb = pTRDcluster->GetLocalTimeBin(); + if (!tb) { + continue; + } + Int_t detector = pTRDcluster->GetDetector(); + Int_t iPlane = fGeom->GetPlane(detector); + if (iPlane >= AliESDtrack::kNPlane) { + AliError(Form("Wrong plane %d",iPlane)); + continue; + } + Int_t iSlice = tb * AliESDtrack::kNSlice / AliTRDtrack::kNtimeBins; + if (iSlice >= AliESDtrack::kNSlice) { + AliError(Form("Wrong slice %d",iSlice)); + continue; + } + clscharge[iPlane][iSlice] = clscharge[iPlane][iSlice] + charge; + if (charge > maxclscharge[iPlane]) { + maxclscharge[iPlane] = charge; + timebin[iPlane] = tb; + } + nCluster[iPlane][iSlice]++; + } // End of loop over cluster + + // Setting the fdEdxPlane and fTimBinPlane variabales + Double_t totalCharge = 0.0; + + for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) { + for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) { + if (nCluster[iPlane][iSlice]) { + clscharge[iPlane][iSlice] /= nCluster[iPlane][iSlice]; + } + TRDtrack.SetPIDsignals(clscharge[iPlane][iSlice],iPlane,iSlice); + totalCharge = totalCharge+clscharge[iPlane][iSlice]; + } + TRDtrack.SetPIDTimBin(timebin[iPlane],iPlane); + } + + // Still needed ???? + // Int_t i; + // Int_t nc=TRDtrack.GetNumberOfClusters(); + // Float_t dedx=0; + // for (i=0; iGetX(); + 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->GetPt()); + Double_t sz2 = ExpectedSigmaZ2(x0,track->GetTgl()); + Double_t road = 15.0 * TMath::Sqrt(track->GetSigmaY2() + sy2); + if (road > 6.0) { + road = 6.0; + } + //road = 20.0; + + 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 + } + + 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]; + Double_t z = zt[it]; + Double_t chi2 = 1000000.0; + nall++; + // - Int_t zone=-1; - for(Int_t ch = 0; ch < (Int_t) kZones; ch++) { - if (TMath::Abs(z - fZc[ch]) < fZmaxSensitive[ch]){ - zone = ch; - lookForCluster = !(fIsHole[zone]); - if(TMath::Abs(y) > fYmaxSensitive){ - lookForCluster = kFALSE; + // Find 2 nearest cluster at given time bin + // + int checkPoint[4] = {0,0,0,0}; + double minY = 123456789; + double minD[2] = {1,1}; + + for (Int_t i = timeBin.Find(y - road); i < maxn; i++) { + //for (Int_t i = 0; i < maxn; i++) { + + AliTRDcluster *c = (AliTRDcluster *) (timeBin[i]); + h01 = GetTiltFactor(c); + if (plane < 0) { + Int_t det = c->GetDetector(); + plane = fGeom->GetPlane(det); + padlength = TMath::Sqrt(c->GetSigmaZ2() * 12.0); + } + + //if (c->GetLocalTimeBin()==0) continue; + if (c->GetY() > (y + road)) { + break; + } + + fHDeltaX->Fill(c->GetX() - x[it]); + //printf("%f\t%f\t%f \n", c->GetX(), x[it], 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)) { // 0.5 + continue; // 6 sigma boundary cut + } + checkPoint[2]++; + + Double_t cost = 0.0; + // Sigma boundary cost function + if (dist> (0.5 * padlength - sigmaz)){ + cost = (dist - 0.5*padlength) / (2.0 * sigmaz); + if (cost > -1) { + cost = (cost + 1.0) * (cost + 1.0); } - if (fIsHole[zone]) { - //if hole - rho = 1.29e-3; - radLength = 36.66; + else { + cost = 0.0; } - } + } + //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; + clfound++; + + if (chi2 > maxChi2[1]) { + continue; + } + checkPoint[3]++; + + detector = c->GetDetector(); + // Store the clusters in the road + 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 < maxChi2[0]) { + maxChi2[1] = maxChi2[0]; + maxChi2[0] = chi2; + indexes[1][it] = indexes[0][it]; + cl[1][it] = cl[0][it]; + indexes[0][it] = timeBin.GetIndex(i); + cl[0][it] = c; + continue; + } + maxChi2[1] = chi2; + cl[1][it] = c; + indexes[1][it] = timeBin.GetIndex(i); + } - return; + + for(int iCheckPoint = 0; iCheckPoint<4; iCheckPoint++) + fHFindCl[iCheckPoint]->Fill(checkPoint[iCheckPoint]); + + if (checkPoint[3]) { + if (track->GetPt() > 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 + + // + // Choose one of the variants // + Int_t changes[10]; + 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 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 + + for (Int_t it = 0; it < 10; 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 + + } + // - // check hole - if (fHole==kFALSE) return; + // Calculate zmean // - for(Int_t ch = 0; ch < (Int_t) kZones; ch++) { - if (TMath::Abs(z - fZc[ch]) < fZmax[ch]){ - if (fIsHole[ch]) { - //if hole - rho = 1.29e-3; - radLength = 36.66; + 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; + } + } + + } + + // + // Iterative choice of "best path" + // + 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(); + break; + } + } + for (Int_t itd = it + 1; itd < t1 - t0; itd++) { + if (cl[best[iter][itd]][itd]) { + 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(); + sum++; + 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)) { + ngood[iter]++; + } + 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 = 0.0; // Normalized residuals - for line fit + Double_t sigma1 = 0.0; // Normalized residuals - constant fit + + for (Int_t it = 0; it < t1 - t0; it++) { + if (!cl[best[iter][it]][it]) { + continue; + } + Double_t dx = x[it] - xmean; + Double_t ytr = mean[iter] + angle[iter] * dx; + sigma2 += (dy[best[iter][it]][it] - ytr) + * (dy[best[iter][it]][it] - ytr); + sigma1 += (dy[best[iter][it]][it] - moffset[iter]) + * (dy[best[iter][it]][it] - moffset[iter]); + sum++; + } + sigma2 /= (sum - 2); // Normalized residuals + sigma1 /= (sum - 1); // Normalized residuals + smean[iter] = sigma2 * (sumx2 / det); // Estimated error2 of mean + sangle[iter] = sigma2 * ( sum / det); // Estimated error2 of angle + smeanangle[iter] = sigma2 * (-sumx / det); // Correlation + sigmas[iter] = TMath::Sqrt(sigma1); + smoffset[iter] = (sigma1 / sum) + 0.01*0.01; // Sigma of mean offset + unisochronity sigma + + // + // Iterative choice of "better path" + // + for (Int_t it = 0; it < t1 - t0; it++) { + + if (!cl[best[iter][it]][it]) { + continue; + } + + // Add unisochronity + angular effect contribution + Double_t sigmatr2 = smoffset[iter] + 0.5*tany*tany; + Double_t sweight = 1.0/sigmatr2 + 1.0/track->GetSigmaY2(); + 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 < 10; 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; + } + } + best[iter+1][it] = ihbest; + } + + // + // Update best hypothesy if better chi2 according tracklet position and angle + // + Double_t sy2 = smean[iter] + track->GetSigmaY2(); + Double_t sa2 = sangle[iter] + track->GetSigmaSnp2(); // track->fCee; + Double_t say = track->GetSigmaSnpY(); // 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 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] + + 2.0 * 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; + } + } - return; -} -Int_t AliTRDtracker::AliTRDpropagationLayer::GetZone( Double_t z) const -{ // + // Set clusters // - if (fTimeBinIndex < 0) return -20; //unknown - Int_t zone=-10; // dead zone - for(Int_t ch = 0; ch < (Int_t) kZones; ch++) { - if(TMath::Abs(z - fZc[ch]) < fZmax[ch]) - zone = ch; + 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; + + //if (tchi2s[bestiter]>25.) sigma2*=tchi2s[bestiter]/25.; + //if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept + + 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; } - return zone; -} + if (changes[bestiter] > 1) { + expectederr += changes[bestiter] * 0.01; + } + expectederr += (0.03 * (tany-exB)*(tany-exB)) * 15.0; + //if (tchi2s[bestiter]>18.) expectederr*= tchi2s[bestiter]/18.; + //expectederr+=10000; + + for (Int_t it = 0; it < t1 - t0; it++) { + + if (!cl[best[bestiter][it]][it]) { + continue; + } + cl[best[bestiter][it]][it]->SetSigmaY2(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(); + } -//______________________________________________________ + // 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(); + } + + 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(); + } + } -void AliTRDtracker::AliTRDpropagationLayer::InsertCluster(AliTRDcluster* c, - UInt_t index) { + 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(); + } + } -// Insert cluster in cluster array. -// Clusters are sorted according to Y coordinate. + // 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(); + } + + 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(); + } + } - if(fTimeBinIndex < 0) { - printf("*** attempt to insert cluster into non-sensitive time bin!\n"); - return; + 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(); + } + } + + clusters[it+t0] = indexes[best[bestiter][it]][it]; + + // Still needed ???? + //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(14.0 - nfound,1.0); + trackleterr2 += 0.2 * (tany-exB)*(tany-exB); + + // Set tracklet parameters + tracklet.Set(xmean + ,track2.GetY() + moffset[bestiter] + ,meanz[bestiter] + ,track2.GetAlpha() + ,trackleterr2); + tracklet.SetTilt(h01); + tracklet.SetP0(mean[bestiter]); + tracklet.SetP1(angle[bestiter]); + tracklet.SetN(nfound); + tracklet.SetNCross(changes[bestiter]); + tracklet.SetPlane(plane); + tracklet.SetSigma2(expectederr); + tracklet.SetChi2(tchi2s[bestiter]); + tracklet.SetMaxPos(maxpos,maxpos4,maxpos5); + track->SetTracklets(plane,tracklet); + track->SetNWrong(track->GetNWrong() + nbad[0]); - if (fN== (Int_t) kMaxClusterPerTimeBin) { - printf("AliTRDpropagationLayer::InsertCluster(): Too many clusters !\n"); - return; + // + // Debuging part + // + TClonesArray array0("AliTRDcluster"); + TClonesArray array1("AliTRDcluster"); + 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 < t1 - t0; it++) { + dy0[it] = dy[0][it]; + dyb[it] = dy[best[bestiter][it]][it]; + if (cl[0][it]) { + new(array0[it]) AliTRDcluster(*cl[0][it]); + } + else { + new(array0[it]) AliTRDcluster(dummy); + } + if(cl[best[bestiter][it]][it]) { + new(array1[it]) AliTRDcluster(*cl[best[bestiter][it]][it]); + } + else{ + new(array1[it]) AliTRDcluster(dummy); + } + } + TGraph graph0(t1-t0,x,dy0); + TGraph graph1(t1-t0,x,dyb); + TGraph graphy(t1-t0,x,yt); + TGraph graphz(t1-t0,x,zt); + + if (AliTRDReconstructor::StreamLevel() > 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"; } - 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++; -} -//______________________________________________________ + return nfound; -Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Double_t y) const { +} -// Returns index of the cluster nearest in Y +//_____________________________________________________________________________ +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 + // - 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; + Int_t *sindexS = new Int_t[n]; // Temporary array for sorting + Int_t *sindexF = new Int_t[2*n]; + for (Int_t i = 0; i < n; i++) { + sindexF[i] = 0; } - return m; -} -//--------------------------------------------------------- + TMath::Sort(n,inlist,sindexS,down); + + Int_t last = inlist[sindexS[0]]; + Int_t val = last; + sindexF[0] = 1; + sindexF[0+n] = last; + Int_t countPos = 0; + + // Find frequency + for (Int_t i = 1; i < n; i++) { + val = inlist[sindexS[i]]; + if (last == val) { + sindexF[countPos]++; + } + else { + countPos++; + sindexF[countPos+n] = val; + sindexF[countPos]++; + last = val; + } + } + if (last == val) { + countPos++; + } + + // Sort according frequency + TMath::Sort(countPos,sindexF,sindexS,kTRUE); + + for (Int_t i = 0; i < countPos; i++) { + outlist[2*i ] = sindexF[sindexS[i]+n]; + outlist[2*i+1] = sindexF[sindexS[i]]; + } + + delete [] sindexS; + delete [] sindexF; + + return countPos; + +} + +//_____________________________________________________________________________ +AliTRDtrack *AliTRDtracker::RegisterSeed(AliTRDseed *seeds, Double_t *params) +{ + // + // Register a seed + // + + Double_t alpha = AliTRDgeometry::GetAlpha(); + Double_t shift = AliTRDgeometry::GetAlpha()/2.0; + Double_t c[15]; + + 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 (cl == 0) { + return 0; + } -Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster* c) { -// -// Returns correction factor for tilted pads geometry -// + AliTRDtrack *track = new AliTRDtrack(cl + ,index + ,¶ms[1] + ,c + ,params[0] + ,params[6]*alpha+shift); + track->PropagateTo(params[0]-5.0); + track->ResetCovariance(1); + + Int_t rc = FollowBackProlongation(*track); + if (rc < 30) { + delete track; + track = 0; + } + else { + track->CookdEdx(); + CookdEdxTimBin(*track); + CookLabel(track,0.9); + } - Double_t h01 = sin(TMath::Pi() / 180.0 * fPar->GetTiltingAngle()); - Int_t det = c->GetDetector(); - Int_t plane = fGeom->GetPlane(det); + return track; +} - if((plane == 1) || (plane == 3) || (plane == 5)) h01=-h01; +////////////////////////////////////////////////////////////////////////////////////////// - if(fNoTilt) h01 = 0; +void AliTRDtracker::InitLogHists() { + + 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); - return h01; + 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 *nameFindCl[4] = {"logTRD_clY", "logTRD_clZ", "logTRD_clB", "logTRD_clG"}; + + for(int i=0; i<4; i++) { + fHFindCl[i] = new TH1D(nameFindCl[i], "", 30, -0.5, 29.5); + } } +////////////////////////////////////////////////////////////////////////////////////////// + +void AliTRDtracker::SaveLogHists() { + + TDirectory *sav = gDirectory; + TFile *logFile = 0; + TSeqCollection *col = gROOT->GetListOfFiles(); + int N = col->GetEntries(); + for(int i=0; iAt(i); + if (strstr(logFile->GetName(), "AliESDs.root")) break; + } + + 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); + for(int i=0; i<4; i++) + fHFindCl[i]->Write(fHFindCl[i]->GetName(), TObject::kOverwrite); + logFile->Flush(); + + sav->cd(); +} +//////////////////////////////////////////////////////////////////////////////////////////