X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;ds=sidebyside;f=TRD%2FAliTRDtracker.cxx;h=f8f3381ccbb4b6d687dad374bb642c6abb88c17e;hb=d19b6003496911d8cd38801049a60dc29d1c4dba;hp=0287f0678d558def0e396ffd6547e8137fa37ed4;hpb=e24ea4748e130606bc8bf170bee34446aa5f508b;p=u%2Fmrichter%2FAliRoot.git diff --git a/TRD/AliTRDtracker.cxx b/TRD/AliTRDtracker.cxx index 0287f0678d5..f8f3381ccbb 100644 --- a/TRD/AliTRDtracker.cxx +++ b/TRD/AliTRDtracker.cxx @@ -13,128 +13,83 @@ * provided "as is" without express or implied warranty. * **************************************************************************/ -/* -$Log$ -Revision 1.24 2003/02/19 09:02:28 hristov -Track time measurement (S.Radomski) +/* $Id$ */ -Revision 1.23 2003/02/10 14:06:10 cblume -Add tracking without tilted pads as option - -Revision 1.22 2003/01/30 15:19:58 cblume -New set of parameters - -Revision 1.21 2003/01/27 16:34:49 cblume -Update of tracking by Sergei and Chuncheng - -Revision 1.20 2002/11/07 15:52:09 cblume -Update of tracking code for tilted pads - -Revision 1.19 2002/10/22 15:53:08 alibrary -Introducing Riostream.h - -Revision 1.18 2002/10/14 14:57:44 hristov -Merging the VirtualMC branch to the main development branch (HEAD) - -Revision 1.14.6.2 2002/07/24 10:09:31 alibrary -Updating VirtualMC - -Revision 1.17 2002/06/13 12:09:58 hristov -Minor corrections - -Revision 1.16 2002/06/12 09:54:36 cblume -Update of tracking code provided by Sergei - -Revision 1.14 2001/11/14 10:50:46 cblume -Changes in digits IO. Add merging of summable digits - -Revision 1.13 2001/05/30 12:17:47 hristov -Loop variables declared once - -Revision 1.12 2001/05/28 17:07:58 hristov -Last minute changes; ExB correction in AliTRDclusterizerV1; taking into account of material in G10 TEC frames and material between TEC planes (C.Blume,S.Sedykh) - -Revision 1.8 2000/12/20 13:00:44 cblume -Modifications for the HP-compiler - -Revision 1.7 2000/12/08 16:07:02 cblume -Update of the tracking by Sergei - -Revision 1.6 2000/11/30 17:38:08 cblume -Changes to get in line with new STEER and EVGEN - -Revision 1.5 2000/11/14 14:40:27 cblume -Correction for the Sun compiler (kTRUE and kFALSE) - -Revision 1.4 2000/11/10 14:57:52 cblume -Changes in the geometry constants for the DEC compiler - -Revision 1.3 2000/10/15 23:40:01 cblume -Remove AliTRDconst - -Revision 1.2 2000/10/06 16:49:46 cblume -Made Getters const - -Revision 1.1.2.2 2000/10/04 16:34:58 cblume -Replace include files by forward declarations - -Revision 1.1.2.1 2000/09/22 14:47:52 cblume -Add the tracking code - -*/ +/////////////////////////////////////////////////////////////////////////////// +// // +// The standard TRD tracker // +// // +/////////////////////////////////////////////////////////////////////////////// #include - #include #include #include #include #include "AliTRDgeometry.h" -#include "AliTRDparameter.h" -#include "AliTRDgeometryDetail.h" +#include "AliTRDpadPlane.h" +#include "AliTRDgeometryFull.h" #include "AliTRDcluster.h" #include "AliTRDtrack.h" -#include "../TPC/AliTPCtrack.h" +#include "AliESD.h" +#include "AliTRDcalibDB.h" +#include "AliTRDCommonParam.h" + +#include "TTreeStream.h" +#include "TGraph.h" #include "AliTRDtracker.h" +#include "TLinearFitter.h" +#include "AliRieman.h" +#include "AliTrackPointArray.h" +#include "AliAlignObj.h" +#include "AliTRDReconstructor.h" +// ClassImp(AliTRDtracker) +ClassImp(AliTRDseed) - const Float_t AliTRDtracker::fSeedDepth = 0.5; - const Float_t AliTRDtracker::fSeedStep = 0.10; - const Float_t AliTRDtracker::fSeedGap = 0.25; - const Float_t AliTRDtracker::fMaxSeedDeltaZ12 = 40.; - const Float_t AliTRDtracker::fMaxSeedDeltaZ = 25.; - const Float_t AliTRDtracker::fMaxSeedC = 0.0052; - const Float_t AliTRDtracker::fMaxSeedTan = 1.2; - const Float_t AliTRDtracker::fMaxSeedVertexZ = 150.; - const Double_t AliTRDtracker::fSeedErrorSY = 0.2; - const Double_t AliTRDtracker::fSeedErrorSY3 = 2.5; - const Double_t AliTRDtracker::fSeedErrorSZ = 0.1; + const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5; + const Float_t AliTRDtracker::fgkLabelFraction = 0.8; + const Double_t AliTRDtracker::fgkMaxChi2 = 12.; + const Double_t AliTRDtracker::fgkMaxSnp = 0.95; // correspond to tan = 3 + const Double_t AliTRDtracker::fgkMaxStep = 2.; // maximal step size in propagation - const Float_t AliTRDtracker::fMinClustersInSeed = 0.7; - const Float_t AliTRDtracker::fMinClustersInTrack = 0.5; - const Float_t AliTRDtracker::fMinFractionOfFoundClusters = 0.8; +// + - const Float_t AliTRDtracker::fSkipDepth = 0.3; - const Float_t AliTRDtracker::fLabelFraction = 0.8; - const Float_t AliTRDtracker::fWideRoad = 20.; - const Double_t AliTRDtracker::fMaxChi2 = 12.; +//____________________________________________________________________ +AliTRDtracker::AliTRDtracker():AliTracker(), + fGeom(0), + fNclusters(0), + fClusters(0), + fNseeds(0), + fSeeds(0), + fNtracks(0), + fTracks(0), + fTimeBinsPerPlane(0), + fAddTRDseeds(kFALSE), + fNoTilt(kFALSE) +{ + // Default constructor + 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"); + printf(" 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()); + // printf("Found geometry version %d on file \n", fGeom->IsVersion()); } else { - printf("AliTRDtracker::AliTRDtracker(): cann't find TRD geometry!\n"); - printf(" DETAIL TRD geometry and DEFAULT TRD parameter will be used\n"); - fGeom = new AliTRDgeometryDetail(); - fPar = new AliTRDparameter(); - } + printf("AliTRDtracker::AliTRDtracker(): can't find TRD geometry!\n"); + fGeom = new AliTRDgeometryFull(); + fGeom->SetPHOShole(); + fGeom->SetRICHhole(); + } savedir->cd(); - // fGeom->SetT0(fTzero); - fNclusters = 0; fClusters = new TObjArray(2000); fNseeds = 0; @@ -177,206 +126,261 @@ AliTRDtracker::AliTRDtracker(const TFile *geomfile) fNtracks = 0; fTracks = new TObjArray(1000); - for(Int_t geom_s = 0; geom_s < kTRACKING_SECTORS; geom_s++) { - Int_t tr_s = CookSectorIndex(geom_s); - fTrSec[tr_s] = new AliTRDtrackingSector(fGeom, geom_s, fPar); + for(Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { + Int_t trS = CookSectorIndex(geomS); + fTrSec[trS] = new AliTRDtrackingSector(fGeom, geomS); + for (Int_t icham=0;ichamIsHole(0,icham,geomS); + } } - - Float_t tilt_angle = TMath::Abs(fPar->GetTiltingAngle()); - if(tilt_angle < 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 && (tilt_angle > 0.1)) fSY2corr = fSY2corr + tilt_angle * 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 = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); - fTimeBinsPerPlane = tbAmp + tbDrift; - fMaxGap = (Int_t) (fTimeBinsPerPlane * fGeom->Nplan() * fSkipDepth); - - fVocal = kFALSE; + fDebugStreamer = new TTreeSRedirector("TRDdebug.root"); + savedir->cd(); } //___________________________________________________________________ AliTRDtracker::~AliTRDtracker() { - delete fClusters; - delete fTracks; - delete fSeeds; + // + // Destructor of AliTRDtracker + // + + if (fClusters) { + fClusters->Delete(); + delete fClusters; + } + if (fTracks) { + fTracks->Delete(); + delete fTracks; + } + if (fSeeds) { + fSeeds->Delete(); + delete fSeeds; + } delete fGeom; - delete fPar; - for(Int_t geom_s = 0; geom_s < kTRACKING_SECTORS; geom_s++) { - delete fTrSec[geom_s]; + for(Int_t geomS = 0; geomS < kTrackingSectors; geomS++) { + delete fTrSec[geomS]; + } + if (fDebugStreamer) { + //fDebugStreamer->Close(); + delete fDebugStreamer; } } //_____________________________________________________________________ -inline Double_t f1trd(Double_t x1,Double_t y1, - Double_t x2,Double_t y2, - Double_t x3,Double_t y3) -{ + + +Int_t AliTRDtracker::LocalToGlobalID(Int_t lid){ // - // Initial approximation of the track curvature + // transform internal TRD ID to global detector ID // - 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)); + 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; +} - Double_t xr=TMath::Abs(d/(d*x1-a)), yr=d/(d*y1-b); +Int_t AliTRDtracker::GlobalToLocalID(Int_t gid){ + // + // transform global detector ID to local detector ID + // + Int_t modId=0; + AliAlignObj::ELayerID layerId = AliAlignObj::VolUIDToLayer(gid, modId); + Int_t isector = modId/fGeom->Ncham(); + Int_t ichamber = modId%fGeom->Ncham(); + Int_t iLayer = -1; + 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; + } + if (iLayer<0) return -1; + Int_t lid = fGeom->GetDetector(iLayer,ichamber,isector); + return lid; +} - return -xr*yr/sqrt(xr*xr+yr*yr); -} -//_____________________________________________________________________ -inline Double_t f2trd(Double_t x1,Double_t y1, - Double_t x2,Double_t y2, - Double_t x3,Double_t y3) -{ +Bool_t AliTRDtracker::Transform(AliTRDcluster * cluster){ + // + // + const Double_t kDriftCorrection = 1.01; // drift coeficient correction + const Double_t kExBcor = 0.001; // ExB coef correction + const Double_t kTime0Cor = 0.32; // time0 correction + // + // apply alignment and calibration to transform cluster + // // - // Initial approximation of the track curvature times X coordinate - // of the center of curvature + Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region + Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.); // drift distance // + Int_t plane = fGeom->GetPlane(cluster->GetDetector()); + Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane); + cluster->SetX(xplane- kDriftCorrection*(cluster->GetX()-kTime0Cor)); + // + // ExB correction + // + Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0); + Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift); + // + cluster->SetY(cluster->GetY() - driftX*(exB+ kExBcor)); + return kTRUE; +} - 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)); +Bool_t AliTRDtracker::AdjustSector(AliTRDtrack *track) { + // + // Rotates the track when necessary + // - Double_t xr=TMath::Abs(d/(d*x1-a)), yr=d/(d*y1-b); + Double_t alpha = AliTRDgeometry::GetAlpha(); + Double_t y = track->GetY(); + Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha); - return -a/(d*y1-b)*xr/sqrt(xr*xr+yr*yr); -} + //Int_t ns = AliTRDgeometry::kNsect; + //Int_t s=Int_t(track->GetAlpha()/alpha)%ns; -//_____________________________________________________________________ -inline Double_t f3trd(Double_t x1,Double_t y1, - Double_t x2,Double_t y2, - Double_t z1,Double_t z2) -{ + if (y > ymax) { + //s = (s+1) % ns; + if (!track->Rotate(alpha)) return kFALSE; + } else if (y <-ymax) { + //s = (s-1+ns) % ns; + if (!track->Rotate(-alpha)) return kFALSE; + } + + return kTRUE; +} + + +AliTRDcluster * AliTRDtracker::GetCluster(AliTRDtrack * track, Int_t plane, Int_t timebin, UInt_t &index){ // - // Initial approximation of the tangent of the track dip angle + //try to find cluster in the backup list // + AliTRDcluster * cl =0; + Int_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; + index = indexes[i]; + break; + } + } + return cl; +} - return (z1 - z2)/sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)); -} +Int_t AliTRDtracker::GetLastPlane(AliTRDtrack * track){ + // + //return last updated plane + Int_t lastplane=0; + Int_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) { + lastplane = iplane; + } + } + return lastplane; +} //___________________________________________________________________ -Int_t AliTRDtracker::Clusters2Tracks(const TFile *inp, TFile *out) +Int_t AliTRDtracker::Clusters2Tracks(AliESD* event) { // - // Finds tracks within the TRD. File is expected to contain seeds - // at the outer part of the TRD. If is NULL, the seeds + // Finds tracks within the TRD. The ESD event is expected to contain seeds + // at the outer part of the TRD. 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 . + // of the TRD and the ESD event is updated // - 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 tpc_tree(tname,"Tree with seeds from TRD at outer TPC pad row"); - AliTPCtrack *iotrack=0; - tpc_tree.Branch("tracks","AliTPCtrack",&iotrack,32000,0); - - sprintf(tname,"TreeT%d_TRD",GetEventNumber()); - TTree trd_tree(tname,"TRD tracks at inner TRD time bin"); - AliTRDtrack *iotrack_trd=0; - trd_tree.Branch("tracks","AliTRDtrack",&iotrack_trd,32000,0); - Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins(); - Float_t foundMin = fMinClustersInTrack * 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(); - - - // 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); + Float_t foundMin = fgkMinClustersInTrack * timeBins; + 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++; + + AliTRDtrack* seed2 = new AliTRDtrack(*seed); + //seed2->ResetCovariance(); + AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha()); + AliTRDtrack &t=*pt; + FollowProlongation(t); if (t.GetNumberOfClusters() >= foundMin) { UseClusters(&t); - CookLabel(pt, 1-fLabelFraction); + CookLabel(pt, 1-fgkLabelFraction); // t.CookdEdx(); } - iotrack_trd = pt; - trd_tree.Fill(); found++; // cout<GetAlpha()); - iotrack = tpc; - tpc_tree.Fill(); - delete tpc; + Double_t xTPC = 250; + if (PropagateToX(t,xTPC,fgkMaxStep)) { + seed->UpdateTrackParams(pt, AliESDtrack::kTRDin); } - delete fSeeds->RemoveAt(i); - fNseeds--; + delete seed2; + delete pt; } cout<<"Number of loaded seeds: "<GetNumberOfTimeBins(); - Int_t nSteps = (Int_t) (fSeedDepth / fSeedStep); - Int_t gap = (Int_t) (timeBins * fSeedGap); - Int_t step = (Int_t) (timeBins * fSeedStep); - - // make a first turn with tight cut on initial curvature - for(Int_t turn = 1; turn <= 2; turn++) { - if(turn == 2) { - nSteps = (Int_t) (fSeedDepth / (3*fSeedStep)); - step = (Int_t) (timeBins * (3*fSeedStep)); - } - 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-fLabelFraction); - t.CookdEdx(); - found++; -// cout<GetAlpha()); - iotrack = tpc; - tpc_tree.Fill(); - delete tpc; - } - } - delete fSeeds->RemoveAt(i); - fNseeds--; - } - } - } - } - tpc_tree.Write(); - trd_tree.Write(); cout<<"Total number of found tracks: "<cd(); - return 0; } //_____________________________________________________________________________ -Int_t AliTRDtracker::PropagateBack(const TFile *inp, TFile *out) { +Int_t AliTRDtracker::PropagateBack(AliESD* event) { // - // Reads seeds from file . 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 @@ -460,804 +408,577 @@ Int_t AliTRDtracker::PropagateBack(const TFile *inp, TFile *out) { // by the TPC tracker. // - LoadEvent(); - - TDirectory *savedir=gDirectory; - - TFile *in=(TFile*)inp; - - if (!in->IsOpen()) { - cerr<<"AliTRDtracker::PropagateBack(): "; - cerr<<"file with back propagated TPC tracks is not open !\n"; - return 1; - } - - if (!out->IsOpen()) { - cerr<<"AliTRDtracker::PropagateBack(): "; - cerr<<"file for back propagated TRD tracks is not open !\n"; - return 2; - } - - 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 "<SetBranchAddress("tracks",&seed); - - Int_t n=(Int_t)seedTree->GetEntries(); + Int_t found=0; + Float_t foundMin = 20; + 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; iGetEvent(i); - Int_t lbl = seed->GetLabel(); - AliTRDtrack *tr = new AliTRDtrack(*seed,seed->GetAlpha()); - tr->SetSeedLabel(lbl); - fSeeds->AddLast(tr); - fNseeds++; + AliESDtrack* seed=event->GetTrack(i); + Double_t covariance[15]; + seed->GetExternalCovariance(covariance); + quality[i] = covariance[0]+covariance[2]; } + TMath::Sort(n,quality,index,kFALSE); + // + for (Int_t i=0; iGetTrack(i); + AliESDtrack* seed=event->GetTrack(index[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); + seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); //make backup + fNseeds++; + Float_t p4 = track->GetC(); + // + Int_t expectedClr = FollowBackProlongation(*track); + if (TMath::Abs(track->GetC()-p4)/TMath::Abs(p4)<0.2 || TMath::Abs(track->GetPt())>0.8 ) { + // + //make backup for back propagation + // + Int_t foundClr = track->GetNumberOfClusters(); + if (foundClr >= foundMin) { + track->CookdEdx(); + CookdEdxTimBin(*track); + CookLabel(track, 1-fgkLabelFraction); + if (track->GetBackupTrack()) UseClusters(track->GetBackupTrack()); + if(track->GetChi2()/track->GetNumberOfClusters()<4) { // sign only gold tracks + if (seed->GetKinkIndex(0)==0&&TMath::Abs(track->GetPt())<1.5 ) UseClusters(track); + } + Bool_t isGold = kFALSE; + + if (track->GetChi2()/track->GetNumberOfClusters()<5) { //full gold track + // seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); + if (track->GetBackupTrack()) seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); + isGold = kTRUE; + } + if (!isGold && track->GetNCross()==0&&track->GetChi2()/track->GetNumberOfClusters()<7){ //almost gold track + // seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); + if (track->GetBackupTrack()) seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); + isGold = kTRUE; + } + if (!isGold && track->GetBackupTrack()){ + if (track->GetBackupTrack()->GetNumberOfClusters()>foundMin&& + (track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1))<7){ + seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); + isGold = kTRUE; + } + } + if (track->StatusForTOF()>0 &&track->fNCross==0 && Float_t(track->fN)/Float_t(track->fNExpected)>0.4){ + //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup); + } + } + } + // Debug part of tracking + TTreeSRedirector& cstream = *fDebugStreamer; + Int_t eventNr = event->GetEventNumber(); + if (track->GetBackupTrack()){ + cstream<<"Tracks"<< + "EventNr="<GetStop()==kFALSE){ + + Double_t xtof=371.; + Double_t c2=track->GetC()*xtof - track->GetEta(); + if (TMath::Abs(c2)>=0.99) { + delete track; + continue; + } + Double_t xTOF0 = 370. ; + PropagateToX(*track,xTOF0,fgkMaxStep); + // + //energy losses taken to the account - check one more time + c2=track->GetC()*xtof - track->GetEta(); + if (TMath::Abs(c2)>=0.99) { + delete track; + continue; + } - delete seed; - delete seedTree; - - out->cd(); - - AliTPCtrack *otrack=0; - - sprintf(tname,"seedsTRDtoTOF1_%d",GetEventNumber()); - TTree tofTree1(tname,"Tracks back propagated through TPC and TRD"); - tofTree1.Branch("tracks","AliTPCtrack",&otrack,32000,0); - - sprintf(tname,"seedsTRDtoTOF2_%d",GetEventNumber()); - TTree tofTree2(tname,"Tracks back propagated through TPC and TRD"); - tofTree2.Branch("tracks","AliTPCtrack",&otrack,32000,0); - - sprintf(tname,"seedsTRDtoPHOS_%d",GetEventNumber()); - TTree phosTree(tname,"Tracks back propagated through TPC and TRD"); - phosTree.Branch("tracks","AliTPCtrack",&otrack,32000,0); - - sprintf(tname,"seedsTRDtoRICH_%d",GetEventNumber()); - TTree richTree(tname,"Tracks back propagated through TPC and TRD"); - richTree.Branch("tracks","AliTPCtrack",&otrack,32000,0); - - sprintf(tname,"TRDb_%d",GetEventNumber()); - TTree trdTree(tname,"Back propagated TRD tracks at outer TRD time bin"); - AliTRDtrack *otrack_trd=0; - trdTree.Branch("tracks","AliTRDtrack",&otrack_trd,32000,0); - - Int_t found=0; - - Int_t nseed=fSeeds->GetEntriesFast(); - - // Float_t foundMin = fMinClustersInTrack * fTimeBinsPerPlane * fGeom->Nplan(); - Float_t foundMin = 0; - - Int_t outermost_tb = fTrSec[0]->GetOuterTimeBin(); - - for (Int_t i=0; iUncheckedAt(i), &s=*ps; - Int_t expectedClr = FollowBackProlongation(s); - Int_t foundClr = s.GetNumberOfClusters(); - Int_t last_tb = 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-fLabelFraction); - UseClusters(ps); + // + Double_t ymax=xtof*TMath::Tan(0.5*AliTRDgeometry::GetAlpha()); + Double_t y=track->GetYat(xtof); + if (y > ymax) { + if (!track->Rotate(AliTRDgeometry::GetAlpha())) { + delete track; + continue; + } + } else if (y <-ymax) { + if (!track->Rotate(-AliTRDgeometry::GetAlpha())) { + delete track; + continue; + } } - // Propagate to outer reference plane [SR, GSI, 18.02.2003] - ps->PropagateTo(364.8); - otrack_trd=ps; - trdTree.Fill(); - found++; -// cout<PropagateTo(xtof)) { + seed->UpdateTrackParams(track, AliESDtrack::kTRDout); + for (Int_t i=0;iSetTRDsignals(track->GetPIDsignals(i),i); + seed->SetTRDTimBin(track->GetPIDTimBin(i),i); + } + // seed->SetTRDtrack(new AliTRDtrack(*track)); + if (track->GetNumberOfClusters()>foundMin) found++; + } + }else{ + if (track->GetNumberOfClusters()>15&&track->GetNumberOfClusters()>0.5*expectedClr){ + seed->UpdateTrackParams(track, AliESDtrack::kTRDout); + //seed->SetStatus(AliESDtrack::kTRDStop); + for (Int_t i=0;iSetTRDsignals(track->GetPIDsignals(i),i); + seed->SetTRDTimBin(track->GetPIDTimBin(i),i); + } + //seed->SetTRDtrack(new AliTRDtrack(*track)); + found++; + } } - - if(((expectedClr < 10) && (last_tb == outermost_tb)) || - ((expectedClr >= 10) && - (((Float_t) foundClr) / ((Float_t) expectedClr) >= - fMinFractionOfFoundClusters) && (last_tb == outermost_tb))) { - - Double_t x_tof = 375.5; - - if(PropagateToOuterPlane(s,x_tof)) { - AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha()); - otrack = pt; - tofTree1.Fill(); - delete pt; - - x_tof = 381.5; + seed->SetTRDQuality(track->StatusForTOF()); + seed->SetTRDBudget(track->fBudget[0]); + + delete track; + // + //End of propagation to the TOF + //if (foundClr>foundMin) + // seed->UpdateTrackParams(track, AliESDtrack::kTRDout); - if(PropagateToOuterPlane(s,x_tof)) { - AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha()); - otrack = pt; - tofTree2.Fill(); - delete pt; - Double_t x_phos = 460.; - - if(PropagateToOuterPlane(s,x_phos)) { - AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha()); - otrack = pt; - phosTree.Fill(); - delete pt; - - Double_t x_rich = 490+1.267; - - if(PropagateToOuterPlane(s,x_rich)) { - AliTPCtrack *pt = new AliTPCtrack(*ps,ps->GetAlpha()); - otrack = pt; - richTree.Fill(); - delete pt; - } - } - } - } - } } - tofTree1.Write(); - tofTree2.Write(); - phosTree.Write(); - richTree.Write(); - trdTree.Write(); - - savedir->cd(); - cerr<<"Number of seeds: "<Clear(); fNseeds=0; + delete [] index; + delete [] quality; + return 0; } - -//--------------------------------------------------------------------------- -Int_t AliTRDtracker::FollowProlongation(AliTRDtrack& t, Int_t rf) +//_____________________________________________________________________________ +Int_t AliTRDtracker::RefitInward(AliESD* event) { - // Starting from current position on track=t this function tries - // to extrapolate the track up to timeBin=0 and to confirm prolongation - // if a close cluster is found. Returns the number of clusters - // expected to be found in sensitive layers - - 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; + // + // Refits tracks within the TRD. The ESD event is expected to contain seeds + // at the outer part of the TRD. + // The tracks are propagated to the innermost time bin + // of the TRD and the ESD event is updated + // Origin: Thomas KUHR (Thomas.Kuhr@cern.ch) + // - Int_t trackIndex = t.GetLabel(); + 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(); + AliTRDtrack seed2; - Int_t ns=Int_t(2*TMath::Pi()/AliTRDgeometry::GetAlpha()+0.5); + Int_t n = event->GetNumberOfTracks(); + for (Int_t i=0; iGetTrack(i); + new(&seed2) AliTRDtrack(*seed); + if (seed2.GetX()<270){ + seed->UpdateTrackParams(&seed2, AliESDtrack::kTRDbackup); // backup TPC track - only update + continue; + } - Int_t try_again=fMaxGap; + ULong_t status=seed->GetStatus(); + if ( (status & AliESDtrack::kTRDout ) == 0 ) { + continue; + } + if ( (status & AliESDtrack::kTRDin) != 0 ) { + continue; + } + nseed++; +// if (1/seed2.Get1Pt()>1.5&& seed2.GetX()>260.) { +// Double_t oldx = seed2.GetX(); +// seed2.PropagateTo(500.); +// seed2.ResetCovariance(1.); +// seed2.PropagateTo(oldx); +// } +// else{ +// seed2.ResetCovariance(5.); +// } + + AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha()); + Int_t * indexes2 = seed2.GetIndexes(); + for (Int_t i=0;iSetPIDsignals(seed2.GetPIDsignals(i),i); + pt->SetPIDTimBin(seed2.GetPIDTimBin(i),i); + } - Double_t alpha=t.GetAlpha(); + Int_t * indexes3 = pt->GetBackupIndexes(); + for (Int_t i=0;i<200;i++) { + if (indexes2[i]==0) break; + indexes3[i] = indexes2[i]; + } + //AliTRDtrack *pt = seed2; + AliTRDtrack &t=*pt; + FollowProlongation(t); + if (t.GetNumberOfClusters() >= foundMin) { + // UseClusters(&t); + //CookLabel(pt, 1-fgkLabelFraction); + t.CookdEdx(); + CookdEdxTimBin(t); + } + found++; +// cout<UpdateTrackParams(pt, AliESDtrack::kTRDrefit); + for (Int_t i=0;iSetTRDsignals(pt->GetPIDsignals(i),i); + seed->SetTRDTimBin(pt->GetPIDTimBin(i),i); + } + }else{ + //if not prolongation to TPC - propagate without update + AliTRDtrack* seed2 = new AliTRDtrack(*seed); + seed2->ResetCovariance(5.); + AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha()); + delete seed2; + if (PropagateToX(*pt2,xTPC,fgkMaxStep)) { + //pt2->CookdEdx(0.,1.); + pt2->CookdEdx( ); // Modification by PS + CookdEdxTimBin(*pt2); + seed->UpdateTrackParams(pt2, AliESDtrack::kTRDrefit); + for (Int_t i=0;iSetTRDsignals(pt2->GetPIDsignals(i),i); + seed->SetTRDTimBin(pt2->GetPIDTimBin(i),i); + } + } + delete pt2; + } + delete pt; + } - if (alpha > 2.*TMath::Pi()) alpha -= 2.*TMath::Pi(); - if (alpha < 0. ) alpha += 2.*TMath::Pi(); + cout<<"Number of loaded seeds: "<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,rad_length,lookForCluster); - x = fTrSec[s]->GetLayer(nr)->GetX()-dx/2; y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,rad_length,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,rad_length,rho)) break; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) break; - if(!t.PropagateTo(x,rad_length,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,rad_length,lookForCluster); - x = fTrSec[s]->GetLayer(nr-1)->GetX(); y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,rad_length,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,rad_length,rho)) break; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) break; - if(!t.PropagateTo(x,rad_length,rho)) break; - } - if(lookForCluster) { +//--------------------------------------------------------------------------- +Int_t AliTRDtracker::FollowProlongation(AliTRDtrack& t) +{ + // Starting from current position on track=t this function tries + // to extrapolate the track up to timeBin=0 and to confirm prolongation + // if a close cluster is found. Returns the number of clusters + // expected to be found in sensitive layers + // GeoManager used to estimate mean density + Int_t sector; + Int_t lastplane = GetLastPlane(&t); + Double_t radLength = 0.0; + Double_t rho = 0.0; + Int_t expectedNumberOfClusters = 0; + // + // + // + for (Int_t iplane = lastplane; iplane>=0; iplane--){ + // + Int_t row0 = GetGlobalTimeBin(0, iplane,GetTimeBinsPerPlane()-1); + Int_t rowlast = GetGlobalTimeBin(0, iplane,0); + // + // propagate track close to the plane if neccessary + // + Double_t currentx = fTrSec[0]->GetLayer(rowlast)->GetX(); + if (currentx < -fgkMaxStep +t.GetX()){ + //propagate closer to chamber - safety space fgkMaxStep + if (!PropagateToX(t, currentx+fgkMaxStep, fgkMaxStep)) break; + } + if (!AdjustSector(&t)) break; + // + // get material budget + // + Double_t xyz0[3],xyz1[3],param[7],x,y,z; + t.GetGlobalXYZ(xyz0[0],xyz0[1],xyz0[2]); //starting global position + // end global position + x = fTrSec[0]->GetLayer(row0)->GetX(); + if (!t.GetProlongation(x,y,z)) break; + xyz1[0] = x*TMath::Cos(t.GetAlpha())-y*TMath::Sin(t.GetAlpha()); + xyz1[1] = +x*TMath::Sin(t.GetAlpha())+y*TMath::Cos(t.GetAlpha()); + xyz1[2] = z; + AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); + rho = param[0]; + radLength = param[1]; // get mean propagation parameters + // + // propagate nad update + // + sector = t.GetSector(); + // for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) { + for (Int_t itime=0 ;itimeGetLayer(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; - - if (road>fWideRoad) { - if (t.GetNumberOfClusters()>4) - cerr<345) t.fNExpectedLast++; + AliTRDpropagationLayer& timeBin=*(fTrSec[sector]->GetLayer(ilayer)); AliTRDcluster *cl=0; UInt_t index=0; - - Double_t max_chi2=fMaxChi2; - - wYclosest = 12345678; - wYcorrect = 12345678; - wZclosest = 12345678; - wZcorrect = 12345678; - wZwindow = TMath::Sqrt(2.25 * 12 * sz2); - - // Find the closest correct cluster for debugging purposes - if (time_bin) { - 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 (time_bin) { - - for (Int_t i=time_bin.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 > max_chi2) continue; - max_chi2=chi2; - cl=c; - index=time_bin.GetIndex(i); - } - - if(!cl) { - - for (Int_t i=time_bin.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 > max_chi2) continue; - max_chi2=chi2; - cl=c; - index=time_bin.GetIndex(i); - } - } - - + Double_t maxChi2=fgkMaxChi2; + x = timeBin.GetX(); + if (timeBin) { + AliTRDcluster * cl0 = timeBin[0]; + if (!cl0) continue; // no clusters in given time bin + Int_t plane = fGeom->GetPlane(cl0->GetDetector()); + if (plane>lastplane) continue; + Int_t timebin = cl0->GetLocalTimeBin(); + AliTRDcluster * cl2= GetCluster(&t,plane, timebin,index); + // + if (cl2) { + cl =cl2; + Double_t h01 = GetTiltFactor(cl); + maxChi2=t.GetPredictedChi2(cl,h01); + } if (cl) { - wYclosest = cl->GetY(); - wZclosest = cl->GetZ(); + // if (cl->GetNPads()<5) + Double_t dxsample = timeBin.GetdX(); + t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); Double_t h01 = GetTiltFactor(cl); - - t.SetSampledEdx(cl->GetQ()/dx,t.GetNumberOfClusters()); - if(!t.Update(cl,max_chi2,index,h01)) { - if(!try_again--) return 0; - } - else try_again=fMaxGap; - } - else { - if (try_again==0) break; - try_again--; - } - - /* - 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"); - } - */ + Int_t det = cl->GetDetector(); + Int_t plane = fGeom->GetPlane(det); + if (t.fX>345){ + t.fNLast++; + t.fChi2Last+=maxChi2; + } + Double_t xcluster = cl->GetX(); + t.PropagateTo(xcluster,radLength,rho); + if(!t.UpdateMI(cl,maxChi2,index,h01,plane)) { + } + } } - } + } } - return expectedNumberOfClusters; - - + return expectedNumberOfClusters; } -//___________________________________________________________________ + + + +//___________________________________________________________________ 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 - 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 ns=Int_t(2*TMath::Pi()/AliTRDgeometry::GetAlpha()+0.5); - - Int_t try_again=fMaxGap; - - 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; - - Int_t outerTB = fTrSec[0]->GetOuterTimeBin(); - - Double_t rad_length, rho, x, dx, y, ymax, z; - - Bool_t lookForCluster; - + Int_t sector; + Int_t clusters[1000]; + for (Int_t i=0;i<1000;i++) clusters[i]=-1; + Double_t radLength = 0.0; + Double_t rho = 0.0; Int_t expectedNumberOfClusters = 0; - x = t.GetX(); - - alpha=AliTRDgeometry::GetAlpha(); // note: change in meaning - - - for (Int_t nr=fTrSec[0]->GetLayerNumber(t.GetX()); nrGetLayer(nr)->GetPropagationParameters(y,z,dx,rho,rad_length,lookForCluster); - x = fTrSec[s]->GetLayer(nr)->GetX()+dx/2; y = t.GetY(); z = t.GetZ(); - - if(!t.PropagateTo(x,rad_length,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,rad_length,rho)) break; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) break; - if(!t.PropagateTo(x,rad_length,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,rad_length,lookForCluster); - - x = fTrSec[s]->GetLayer(nr+1)->GetX(); y = t.GetY(); z = t.GetZ(); - - if(!t.PropagateTo(x,rad_length,rho)) break; - - y = t.GetY(); - - ymax = x*TMath::Tan(0.5*alpha); - - if(fVocal) printf("nr+1=%d, x %f, z %f, y %f, ymax %f\n",nr+1,x,z,y,ymax); - - if (y > ymax) { - s = (s+1) % ns; - if (!t.Rotate(alpha)) break; - if(!t.PropagateTo(x,rad_length,rho)) break; - } else if (y <-ymax) { - s = (s-1+ns) % ns; - if (!t.Rotate(-alpha)) break; - if(!t.PropagateTo(x,rad_length,rho)) break; - } - - // printf("label %d, pl %d, lookForCluster %d \n", - // trackIndex, nr+1, lookForCluster); - - if(lookForCluster) { + Float_t ratio0=0; + AliTRDtracklet tracklet; + // + // + for (Int_t iplane = 0; iplaneGetLayer(row0)->GetX(); + if (currentx fgkMaxStep +t.GetX()){ + if (!PropagateToX(t, currentx-fgkMaxStep, fgkMaxStep)) break; + } + if (!AdjustSector(&t)) break; + if (TMath::Abs(t.GetSnp())>fgkMaxSnp) break; + // + // get material budget inside of chamber + // + Double_t xyz0[3],xyz1[3],param[7],x,y,z; + t.GetGlobalXYZ(xyz0[0],xyz0[1],xyz0[2]); //starting global position + // end global position + x = fTrSec[0]->GetLayer(rowlast)->GetX(); + if (!t.GetProlongation(x,y,z)) break; + xyz1[0] = x*TMath::Cos(t.GetAlpha())-y*TMath::Sin(t.GetAlpha()); + xyz1[1] = +x*TMath::Sin(t.GetAlpha())+y*TMath::Cos(t.GetAlpha()); + xyz1[2] = z; + AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); + rho = param[0]; + radLength = param[1]; // get mean propagation parameters + // + // Find clusters + // + sector = t.GetSector(); + Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet); + if (tracklet.GetN()=0;itime--) { + Int_t ilayer = GetGlobalTimeBin(0, iplane,itime); expectedNumberOfClusters++; - - wIndex = (Float_t) t.GetLabel(); - wTB = fTrSec[s]->GetLayer(nr+1)->GetTimeBinIndex(); - - AliTRDpropagationLayer& time_bin=*(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>fWideRoad) { - if (t.GetNumberOfClusters()>4) - cerr<345) t.fNExpectedLast++; + AliTRDpropagationLayer& timeBin=*(fTrSec[sector]->GetLayer(ilayer)); AliTRDcluster *cl=0; UInt_t index=0; - - Double_t max_chi2=fMaxChi2; - - wYclosest = 12345678; - wYcorrect = 12345678; - wZclosest = 12345678; - wZcorrect = 12345678; - wZwindow = TMath::Sqrt(2.25 * 12 * sz2); - - // Find the closest correct cluster for debugging purposes - if (time_bin) { - 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 (time_bin) { - - for (Int_t i=time_bin.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 > max_chi2) continue; - max_chi2=chi2; - cl=c; - index=time_bin.GetIndex(i); - } + 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); + maxChi2=t.GetPredictedChi2(cl,h01); + } - if(!cl) { - - for (Int_t i=time_bin.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); - Double_t chi2=t.GetPredictedChi2(c,h01); - - if (chi2 > max_chi2) continue; - max_chi2=chi2; - cl=c; - index=time_bin.GetIndex(i); - } - } - if (cl) { - wYclosest = cl->GetY(); - wZclosest = cl->GetZ(); - - t.SetSampledEdx(cl->GetQ()/dx,t.GetNumberOfClusters()); + // if (cl->GetNPads()<5) + Double_t dxsample = timeBin.GetdX(); + t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample)); Double_t h01 = GetTiltFactor(cl); - if(!t.Update(cl,max_chi2,index,h01)) { - if(!try_again--) return 0; + Int_t det = cl->GetDetector(); + Int_t plane = fGeom->GetPlane(det); + if (t.fX>345){ + t.fNLast++; + t.fChi2Last+=maxChi2; + } + Double_t xcluster = cl->GetX(); + t.PropagateTo(xcluster,radLength,rho); + if(!t.UpdateMI(cl,maxChi2,index,h01,plane)) { + if(!t.Update(cl,maxChi2,index,h01)) { + } } - else try_again=fMaxGap; - } - else { - if (try_again==0) break; - try_again--; - } - - /* - 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"); - } - */ + // + // reset material budget if 2 consecutive gold + if (plane>0) + if (t.fTracklets[plane].GetN()+t.fTracklets[plane-1].GetN()>20){ + t.fBudget[2] = 0; + } + } } - } + } + ratio0 = ncl/Float_t(fTimeBinsPerPlane); + Float_t ratio1 = Float_t(t.fN+1)/Float_t(t.fNExpected+1.); + if (tracklet.GetChi2()<18.&&ratio0>0.8 && ratio1>0.6 && ratio0+ratio1>1.5 && t.GetNCross()==0 && TMath::Abs(t.GetSnp())<0.85&&t.fN>20){ + t.MakeBackupTrack(); // make backup of the track until is gold + } + } - return expectedNumberOfClusters; + // + return expectedNumberOfClusters; } -//___________________________________________________________________ -Int_t AliTRDtracker::PropagateToOuterPlane(AliTRDtrack& t, Double_t xToGo) + +Int_t AliTRDtracker::PropagateToX(AliTRDtrack& t, Double_t xToGo, Double_t maxStep) { // 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 rad_length, 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,rad_length,lookForCluster); - x = fTrSec[s]->GetLayer(nr)->GetX()+dx/2; y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,rad_length,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,rad_length,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,rad_length,lookForCluster); - x = fTrSec[s]->GetLayer(nr+1)->GetX(); y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,rad_length,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,rad_length,rho)) return 0; + const Double_t kEpsilon = 0.00001; + // Double_t tanmax = TMath::Tan(0.5*AliTRDgeometry::GetAlpha()); + Double_t xpos = t.GetX(); + Double_t dir = (xpos kEpsilon){ + Double_t step = dir*TMath::Min(TMath::Abs(xToGo-xpos), maxStep); + // + Double_t xyz0[3],xyz1[3],param[7],x,y,z; + t.GetGlobalXYZ(xyz0[0],xyz0[1],xyz0[2]); //starting global position + x = xpos+step; + // + if (!t.GetProlongation(x,y,z)) return 0; // no prolongation + // + xyz1[0] = x*TMath::Cos(t.GetAlpha())-y*TMath::Sin(t.GetAlpha()); + xyz1[1] = +x*TMath::Sin(t.GetAlpha())+y*TMath::Cos(t.GetAlpha()); + xyz1[2] = z; + // + AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); + if (!t.PropagateTo(x,param[1],param[0])) return 0; + AdjustSector(&t); + xpos = t.GetX(); } 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(); - 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 rad_length, 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,rad_length,lookForCluster); - x = fTrSec[s]->GetLayer(nr)->GetX()-dx/2; y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,rad_length,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,rad_length,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,rad_length,lookForCluster); - x = fTrSec[s]->GetLayer(nr-1)->GetX(); y = t.GetY(); z = t.GetZ(); - if(!t.PropagateTo(x,rad_length,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,rad_length,rho)) return 0; - } - return 1; -} //_____________________________________________________________________________ -void AliTRDtracker::LoadEvent() +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 - - ReadClusters(fClusters); + cout<<"\n Read Sectors clusters"<GetEntriesFast(); + fNclusters=ncl; cout<<"\n LoadSectors: sorting "<UncheckedAt(ncl); - Int_t detector=c->GetDetector(), local_time_bin=c->GetLocalTimeBin(); + Int_t detector=c->GetDetector(); + Int_t localTimeBin=c->GetLocalTimeBin(); Int_t sector=fGeom->GetSector(detector); Int_t plane=fGeom->GetPlane(detector); + + Int_t trackingSector = CookSectorIndex(sector); + if (c->GetLabel(0)>0){ + Int_t chamber = fGeom->GetChamber(detector); + fHoles[chamber][trackingSector]=kFALSE; + } - Int_t tracking_sector = CookSectorIndex(sector); - - Int_t gtb = fTrSec[tracking_sector]->CookTimeBinIndex(plane,local_time_bin); + Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin); if(gtb < 0) continue; - Int_t layer = fTrSec[tracking_sector]->GetLayerNumber(gtb); + Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb); index=ncl; - fTrSec[tracking_sector]->GetLayer(layer)->InsertCluster(c,index); + // + // apply pos correction + Transform(c); + fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index); } - printf("\r\n"); - + return 0; } //_____________________________________________________________________________ -void AliTRDtracker::UnloadEvent() +void AliTRDtracker::UnloadClusters() { // // Clears the arrays of clusters and tracks. Resets sectors and timebins @@ -1267,6 +988,7 @@ void AliTRDtracker::UnloadEvent() nentr = fClusters->GetEntriesFast(); 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); @@ -1285,326 +1007,1072 @@ 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 + // + const Double_t maxtheta = 1; + const Double_t maxphi = 2.0; + // + const Double_t kRoad0y = 6; // road for middle cluster + const Double_t kRoad0z = 8.5; // road for middle cluster + // + const Double_t kRoad1y = 2; // road in y for seeded cluster + const Double_t kRoad1z = 20; // road in z for seeded cluster + // + const Double_t kRoad2y = 3; // road in y for extrapolated cluster + const Double_t kRoad2z = 20; // road in z for extrapolated cluster + const Int_t maxseed = 3000; + Int_t maxSec=AliTRDgeometry::kNsect; - if(turn > 2) { - cerr<<"MakeSeeds: turn "<GetNumberOfLayers();ilayer++){ + AliTRDpropagationLayer& layer=*(fTrSec[ns]->GetLayer(ilayer)); + if (layer==0) continue; + Int_t det = layer[0]->GetDetector(); + Int_t plane = fGeom->GetPlane(det); + if (ilayerlayers[plane][1]) layers[plane][1] = ilayer; + } } - - Double_t x[5], c[15]; - Int_t max_sec=AliTRDgeometry::kNsect; - - Double_t alpha=AliTRDgeometry::GetAlpha(); - Double_t shift=AliTRDgeometry::GetAlpha()/2.; - Double_t cs=cos(alpha), sn=sin(alpha); - Double_t cs2=cos(2.*alpha), sn2=sin(2.*alpha); - - - Int_t i2 = fTrSec[0]->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+max_sec)%max_sec]->GetLayer(i2)); - Int_t nm=(*fTrSec[ns]->GetLayer(i2)); - Int_t nu=(*fTrSec[(ns+1)%max_sec]->GetLayer(i2)); - Int_t nu2=(*fTrSec[(ns+2)%max_sec]->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)%max_sec]->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) > fMaxSeedDeltaZ12) continue; - - Double_t zz=z1 - z1/x1*(x1-x2); - - if (TMath::Abs(zz-z2)>fMaxSeedDeltaZ) 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]) > fMaxSeedC) 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]) > fMaxSeedTan) 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)>fMaxSeedVertexZ) continue; - - Double_t sy1=r1[is]->GetSigmaY2(), sz1=r1[is]->GetSigmaZ2(); - Double_t sy2=cl->GetSigmaY2(), sz2=cl->GetSigmaZ2(); - Double_t sy3=fSeedErrorSY3, sy=fSeedErrorSY, sz=fSeedErrorSZ; - - // Tilt changes - Double_t h01 = GetTiltFactor(r1[is]); - Double_t xu_factor = 100.; - if(fNoTilt) { - h01 = 0; - xu_factor = 1; + // + 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]={10,10,10,10,10,10}; //current pad-length + Double_t chi2R =0, chi2Z=0; + Double_t chi2RF =0, chi2ZF=0; + // + Int_t nclusters; // total number of clusters + for (Int_t i=0;i<6;i++) {hL[i]=h01; if (i%2==1) hL[i]*=-1.;} + // + // + // registered seed + AliTRDseed *pseed = new AliTRDseed[maxseed*6]; + AliTRDseed *seed[maxseed]; + for (Int_t iseed=0;iseed=0;sLayer--){ + //for (Int_t dseed=5;dseed<15; dseed+=3){ //loop over central seeding time bins + iter+=1.; + Int_t dseed = 5+Int_t(iter)*3; + // 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(); + } + // + Double_t xref = (xcl[sLayer+1] + xcl[sLayer+2])*0.5; + AliTRDpropagationLayer& layer0=*reflayers[sLayer+0]; + AliTRDpropagationLayer& layer1=*reflayers[sLayer+1]; + AliTRDpropagationLayer& layer2=*reflayers[sLayer+2]; + AliTRDpropagationLayer& layer3=*reflayers[sLayer+3]; + // + Int_t maxn3 = layer3; + for (Int_t icl3=0;icl3GetSigmaZ2()*12.); + ycl[sLayer+3] = cl3->GetY(); + zcl[sLayer+3] = cl3->GetZ(); + Float_t yymin0 = ycl[sLayer+3] - 1- maxphi *(xcl[sLayer+3]-xcl[sLayer+0]); + Float_t yymax0 = ycl[sLayer+3] + 1+ maxphi *(xcl[sLayer+3]-xcl[sLayer+0]); + Int_t maxn0 = layer0; // + for (Int_t icl0=layer0.Find(yymin0);icl0IsUsed()&&cl0->IsUsed()) continue; + ycl[sLayer+0] = cl0->GetY(); + zcl[sLayer+0] = cl0->GetZ(); + if ( ycl[sLayer+0]>yymax0) break; + Double_t tanphi = (ycl[sLayer+3]-ycl[sLayer+0])/(xcl[sLayer+3]-xcl[sLayer+0]); + if (TMath::Abs(tanphi)>maxphi) continue; + Double_t tantheta = (zcl[sLayer+3]-zcl[sLayer+0])/(xcl[sLayer+3]-xcl[sLayer+0]); + if (TMath::Abs(tantheta)>maxtheta) continue; + padlength[sLayer+0] = TMath::Sqrt(cl0->GetSigmaZ2()*12.); + // + // expected position in 1 layer + Double_t y1exp = ycl[sLayer+0]+(tanphi) *(xcl[sLayer+1]-xcl[sLayer+0]); + Double_t z1exp = zcl[sLayer+0]+(tantheta)*(xcl[sLayer+1]-xcl[sLayer+0]); + Float_t yymin1 = y1exp - kRoad0y-tanphi; + Float_t yymax1 = y1exp + kRoad0y+tanphi; + Int_t maxn1 = layer1; // + // + for (Int_t icl1=layer1.Find(yymin1);icl1IsUsed()) 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.); + // + Double_t y2exp = ycl[sLayer+0]+(tanphi) *(xcl[sLayer+2]-xcl[sLayer+0])+(ycl[sLayer+1]-y1exp); + Double_t z2exp = zcl[sLayer+0]+(tantheta)*(xcl[sLayer+2]-xcl[sLayer+0]); + Int_t index2 = layer2.FindNearestCluster(y2exp,z2exp,kRoad1y, kRoad1z); + if (index2<=0) continue; + AliTRDcluster *cl2 = (AliTRDcluster*)GetCluster(index2); + padlength[sLayer+2] = TMath::Sqrt(cl2->GetSigmaZ2()*12.); + ycl[sLayer+2] = cl2->GetY(); + zcl[sLayer+2] = cl2->GetZ(); + if (TMath::Abs(cl2->GetZ()-z2exp)>kRoad0z) continue; + // + 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.; chi2R=0.; + for (Int_t iLayer=0;iLayer<4;iLayer++){ + cseed[sLayer+iLayer].fZref[0] = rieman.GetZat(xcl[sLayer+iLayer]); + chi2Z += (cseed[sLayer+iLayer].fZref[0]- zcl[sLayer+iLayer])* + (cseed[sLayer+iLayer].fZref[0]- zcl[sLayer+iLayer]); + cseed[sLayer+iLayer].fZref[1] = rieman.GetDZat(xcl[sLayer+iLayer]); + cseed[sLayer+iLayer].fYref[0] = rieman.GetYat(xcl[sLayer+iLayer]); + chi2R += (cseed[sLayer+iLayer].fYref[0]- ycl[sLayer+iLayer])* + (cseed[sLayer+iLayer].fYref[0]- ycl[sLayer+iLayer]); + cseed[sLayer+iLayer].fYref[1] = rieman.GetDYat(xcl[sLayer+iLayer]); + } + if (TMath::Sqrt(chi2R)>1./iter) continue; + if (TMath::Sqrt(chi2Z)>7./iter) continue; + // + // + // + Float_t minmax[2]={-100,100}; + for (Int_t iLayer=0;iLayer<4;iLayer++){ + Float_t max = zcl[sLayer+iLayer]+padlength[sLayer+iLayer]*0.5+1 -cseed[sLayer+iLayer].fZref[0]; + if (maxminmax[0]) minmax[0]=min; + } + Bool_t isFake = kFALSE; + if (cl0->GetLabel(0)!=cl3->GetLabel(0)) isFake = kTRUE; + if (cl1->GetLabel(0)!=cl3->GetLabel(0)) isFake = kTRUE; + if (cl2->GetLabel(0)!=cl3->GetLabel(0)) isFake = kTRUE; + if ((!isFake) || (icl3%10)==0 ){ //debugging print + TTreeSRedirector& cstream = *fDebugStreamer; + cstream<<"Seeds0"<< + "isFake="<0) roadz = padlength[sLayer+jLayer]; + // + Float_t quality =10000; + for (Int_t iTime=2;iTime<20;iTime++){ + AliTRDpropagationLayer& layer = *(fTrSec[ns]->GetLayer(layers[sLayer+jLayer][1]-iTime)); + Double_t dxlayer= layer.GetX()-xcl[sLayer+jLayer]; + Double_t zexp = cl[sLayer+jLayer]->GetZ() ; + if (iter>0){ + // try 2 pad-rows in second iteration + zexp = tseed.fZref[0]+ tseed.fZref[1]*dxlayer; + if (zexp>cl[sLayer+jLayer]->GetZ()) zexp = cl[sLayer+jLayer]->GetZ()+padlength[sLayer+jLayer]*0.5; + if (zexpGetZ()) zexp = cl[sLayer+jLayer]->GetZ()-padlength[sLayer+jLayer]*0.5; + } + // + Double_t yexp = tseed.fYref[0]+ + tseed.fYref[1]*dxlayer; + Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y, roadz); + if (index<=0) continue; + AliTRDcluster *cl = (AliTRDcluster*)GetCluster(index); + // + tseed.fIndexes[iTime] = index; + tseed.fClusters[iTime] = cl; // register cluster + tseed.fX[iTime] = dxlayer; // register cluster + tseed.fY[iTime] = cl->GetY(); // register cluster + tseed.fZ[iTime] = cl->GetZ(); // register cluster + } + tseed.Update(); + //count the number of clusters and distortions into quality + Float_t dangle = tseed.fYfit[1]-tseed.fYref[1]; + Float_t tquality = (18-tseed.fN2)/2. + TMath::Abs(dangle)/0.1+ + TMath::Abs(tseed.fYfit[0]-tseed.fYref[0])/0.2+ + 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer]; + if (iter==0 && tseed.isOK()) { + cseed[sLayer+jLayer] = tseed; + quality = tquality; + if (tquality<5) break; + } + if (tseed.isOK() && tquality25){ + isOK = kFALSE; + break; + } + } + // + if (!isOK) continue; + nclusters=0; + for (Int_t iLayer=0;iLayer<4;iLayer++){ + if (cseed[sLayer+iLayer].isOK()){ + nclusters+=cseed[sLayer+iLayer].fN2; + } + } + // + // iteration 0 + rieman.Reset(); + for (Int_t iLayer=0;iLayer<4;iLayer++){ + rieman.AddPoint(xcl[sLayer+iLayer],cseed[sLayer+iLayer].fYfitR[0], + cseed[sLayer+iLayer].fZProb,1,10); + } + rieman.Update(); + // + // + chi2R =0; chi2Z=0; + for (Int_t iLayer=0;iLayer<4;iLayer++){ + cseed[sLayer+iLayer].fYref[0] = rieman.GetYat(xcl[sLayer+iLayer]); + chi2R += (cseed[sLayer+iLayer].fYref[0]-cseed[sLayer+iLayer].fYfitR[0])* + (cseed[sLayer+iLayer].fYref[0]-cseed[sLayer+iLayer].fYfitR[0]); + cseed[sLayer+iLayer].fYref[1] = rieman.GetDYat(xcl[sLayer+iLayer]); + cseed[sLayer+iLayer].fZref[0] = rieman.GetZat(xcl[sLayer+iLayer]); + chi2Z += (cseed[sLayer+iLayer].fZref[0]- cseed[sLayer+iLayer].fMeanz)* + (cseed[sLayer+iLayer].fZref[0]- cseed[sLayer+iLayer].fMeanz); + cseed[sLayer+iLayer].fZref[1] = rieman.GetDZat(xcl[sLayer+iLayer]); + } + Double_t curv = rieman.GetC(); + // + // likelihoods + // + Double_t sumda = + TMath::Abs(cseed[sLayer+0].fYfitR[1]- cseed[sLayer+0].fYref[1])+ + TMath::Abs(cseed[sLayer+1].fYfitR[1]- cseed[sLayer+1].fYref[1])+ + TMath::Abs(cseed[sLayer+2].fYfitR[1]- cseed[sLayer+2].fYref[1])+ + TMath::Abs(cseed[sLayer+3].fYfitR[1]- cseed[sLayer+3].fYref[1]); + Double_t likea = TMath::Exp(-sumda*10.6); + Double_t likechi2 = 0.0000000001; + if (chi2R<0.5) likechi2+=TMath::Exp(-TMath::Sqrt(chi2R)*7.73); + Double_t likechi2z = TMath::Exp(-chi2Z*0.088)/TMath::Exp(-chi2Z*0.019); + Double_t likeN = TMath::Exp(-(72-nclusters)*0.19); + Double_t like = likea*likechi2*likechi2z*likeN; + // + Double_t likePrimY = TMath::Exp(-TMath::Abs(cseed[sLayer+0].fYref[1]-130*curv)*1.9); + Double_t likePrimZ = TMath::Exp(-TMath::Abs(cseed[sLayer+0].fZref[1]- + cseed[sLayer+0].fZref[0]/xcl[sLayer+0])*5.9); + Double_t 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].fTilt = hL[jLayer]; + cseed[jLayer].fPadLength = padlength[jLayer]; + cseed[jLayer].fX0 = xcl[jLayer]; + // get pad length and rough cluster + Int_t indexdummy = reflayers[jLayer]->FindNearestCluster(cseed[jLayer].fYref[0], + cseed[jLayer].fZref[0],kRoad2y,kRoad2z); + if (indexdummy<=0) continue; + AliTRDcluster *cldummy = (AliTRDcluster*)GetCluster(indexdummy); + padlength[jLayer] = TMath::Sqrt(cldummy->GetSigmaZ2()*12.); + } + AliTRDseed::FitRiemanTilt(cseed, kTRUE); + // + for (Int_t iLayer=0;iLayer<2;iLayer++){ + Int_t jLayer = tLayer[iLayer]; // set tracking layer + if ( (jLayer==0) && !(cseed[1].isOK())) continue; // break not allowed + if ( (jLayer==5) && !(cseed[4].isOK())) continue; // break not allowed + Float_t zexp = cseed[jLayer].fZref[0]; + Double_t zroad = padlength[jLayer]*0.5+1.; + // + // + for (Int_t iter=0;iter<2;iter++){ + AliTRDseed tseed = cseed[jLayer]; + Float_t quality = 10000; + for (Int_t iTime=2;iTime<20;iTime++){ + AliTRDpropagationLayer& layer = *(fTrSec[ns]->GetLayer(layers[jLayer][1]-iTime)); + Double_t dxlayer = layer.GetX()-xcl[jLayer]; + Double_t yexp = tseed.fYref[0]+tseed.fYref[1]*dxlayer; + Float_t yroad = kRoad1y; + Int_t index = layer.FindNearestCluster(yexp,zexp, yroad, zroad); + if (index<=0) continue; + AliTRDcluster *cl = (AliTRDcluster*)GetCluster(index); + // + tseed.fIndexes[iTime] = index; + tseed.fClusters[iTime] = cl; // register cluster + tseed.fX[iTime] = dxlayer; // register cluster + tseed.fY[iTime] = cl->GetY(); // register cluster + tseed.fZ[iTime] = cl->GetZ(); // register cluster + } + tseed.Update(); + if (tseed.isOK()){ + Float_t dangle = tseed.fYfit[1]-tseed.fYref[1]; + Float_t tquality = (18-tseed.fN2)/2. + TMath::Abs(dangle)/0.1+ + TMath::Abs(tseed.fYfit[0]-tseed.fYref[0])/0.2+ + 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer]; + // + if (tquality=lastquality || chi2>lastchi2) break; + 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.fZref[0]; + Double_t zcor = tseed.fTilt*(tseed.fZProb-tseed.fZref[0]); + // + Float_t roadz = padlength[bLayer]+1; + if (TMath::Abs(tseed.fZProb-zexp)> padlength[bLayer]*0.5) {roadz = padlength[bLayer]*0.5;} + if (tseed.fZfit[1]*tseed.fZref[1]<0) {roadz = padlength[bLayer]*0.5;} + if (TMath::Abs(tseed.fZProb-zexp)<0.1*padlength[bLayer]) { + zexp = tseed.fZProb; + roadz = padlength[bLayer]*0.5; + } + // + Double_t yexp = tseed.fYref[0]+ + tseed.fYref[1]*dxlayer-zcor; + Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y, roadz); + if (index<=0) continue; + AliTRDcluster *cl = (AliTRDcluster*)GetCluster(index); + // + tseed.fIndexes[iTime] = index; + tseed.fClusters[iTime] = cl; // register cluster + tseed.fX[iTime] = dxlayer; // register cluster + tseed.fY[iTime] = cl->GetY(); // register cluster + tseed.fZ[iTime] = cl->GetZ(); // register cluster + } + tseed.Update(); + if (tseed.isOK()) { + Float_t dangle = tseed.fYfit[1]-tseed.fYref[1]; + Double_t zcor = tseed.fTilt*(tseed.fZProb-tseed.fZref[0]); + // + Float_t tquality = (18-tseed.fN2)/2. + TMath::Abs(dangle)/0.1+ + TMath::Abs(tseed.fYfit[0]-(tseed.fYref[0]-zcor))/0.2+ + 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer]; + // + if (tqualitypadlength[iLayer]*0.5+1) + 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.); // curvature + // + Double_t aR = fitterT2.GetParameter(0); + Double_t bR = fitterT2.GetParameter(1); + Double_t dR = fitterT2.GetParameter(2); + Double_t CR = 1+bR*bR-dR*aR; + Double_t dca = 0.; + if (CR>0){ + dca = -dR/(TMath::Sqrt(1+bR*bR-dR*aR)+TMath::Sqrt(1+bR*bR)); + CR = aR/TMath::Sqrt(CR); + } + // + Double_t chi2ZT2=0, chi2ZTC=0; + for (Int_t iLayer=0; iLayer<6;iLayer++){ + if (cseed[iLayer].isOK()){ + Double_t zT2 = rpolz0+rpolz1*(xcl[iLayer] - xref2); + Double_t zTC = polz0c+polz1c*(xcl[iLayer] - xref2); + chi2ZT2 += TMath::Abs(cseed[iLayer].fMeanz-zT2); + chi2ZTC += TMath::Abs(cseed[iLayer].fMeanz-zTC); + } + } + chi2ZT2/=TMath::Max((nlayers-3.),1.); + chi2ZTC/=TMath::Max((nlayers-3.),1.); + // + // + // + AliTRDseed::FitRiemanTilt(cseed, kTRUE); + Float_t sumdaf = 0; + for (Int_t iLayer=0;iLayer<6;iLayer++){ + if (cseed[iLayer].isOK()) + sumdaf += TMath::Abs((cseed[iLayer].fYfit[1]-cseed[iLayer].fYref[1])/cseed[iLayer].fSigmaY2); + } + sumdaf /= Float_t (nlayers-2.); + // + // 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; +// 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].fX0; + seedparams[registered][1] = cseed[index0].fYref[0]; + seedparams[registered][2] = cseed[index0].fZref[0]; + seedparams[registered][5] = CR; + seedparams[registered][3] = cseed[index0].fX0*CR - TMath::Sin(TMath::ATan(cseed[0].fYref[1])); + seedparams[registered][4] = cseed[index0].fZref[1]/ + TMath::Sqrt(1+cseed[index0].fYref[1]*cseed[index0].fYref[1]); + seedparams[registered][6] = ns; + // + // + Int_t labels[12], outlab[24]; + Int_t nlab=0; + for (Int_t iLayer=0;iLayer<6;iLayer++){ + if (!cseed[iLayer].isOK()) continue; + if (cseed[iLayer].fLabels[0]>=0) { + labels[nlab] = cseed[iLayer].fLabels[0]; + nlab++; + } + if (cseed[iLayer].fLabels[1]>=0) { + labels[nlab] = cseed[iLayer].fLabels[1]; + nlab++; + } + } + Freq(nlab,labels,outlab,kFALSE); + Int_t label = outlab[0]; + Int_t frequency = outlab[1]; + for (Int_t iLayer=0;iLayer<6;iLayer++){ + cseed[iLayer].fFreq = frequency; + cseed[iLayer].fC = CR; + cseed[iLayer].fCC = CC; + cseed[iLayer].fChi2 = chi2TR; + cseed[iLayer].fChi2Z = chi2ZF; + } + // + if (1||(!isFake)){ //debugging print + Float_t zvertex = GetZ(); + TTreeSRedirector& cstream = *fDebugStreamer; + cstream<<"Seeds1"<< + "isFake="<GetLabel(ilab); + if (tindex>=0){ + labelsall[nlabelsall] = tindex; + nlabelsall++; + } + } + } + } + } + } + // + if (nused>30) continue; + // + if (iter==0){ + if (nlayers<6) continue; + if (TMath::Log(0.000000001+seedquality2[index])<-5.) continue; // gold + } + // + if (iter==1){ + if (nlayers=0) { + labels[nlab] = seed[index][iLayer].fLabels[0]; + nlab++; + } + if (seed[index][iLayer].fLabels[1]>=0) { + labels[nlab] = seed[index][iLayer].fLabels[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].fYfit[1]-seed[index][jLayer].fYfit[1])<0.2 ) + seed[index][jLayer].UseClusters(); //sign gold + } + } + // + Int_t eventNr = esd->GetEventNumber(); + 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; + cstream<<"Tracks"<< + "EventNr="<GetNumberOfClusters() < - (outer-inner)*fMinClustersInSeed)) delete track; - else { - fSeeds->AddLast(track); fNseeds++; -// cerr<<"\r found seed "<= 0) or AliTRDrecPoints (option < 0) // from the file. The names of the cluster tree and branches // 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); - - TObjArray *ClusterArray = new TObjArray(400); + Int_t nsize = Int_t(ClusterTree->GetTotBytes()/(sizeof(AliTRDcluster))); + TObjArray *clusterArray = new TObjArray(nsize+1000); - ClusterTree->GetBranch("TRDcluster")->SetAddress(&ClusterArray); + 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()); + // printf("found %d entries in %s.\n",nEntries,ClusterTree->GetName()); // Loop through all entries in the tree - Int_t nbytes; + Int_t nbytes = 0; AliTRDcluster *c = 0; - printf("\n"); - + // 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(); + 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); + // delete clusterArray->RemoveAt(iCluster); + clusterArray->RemoveAt(iCluster); } } +// cout<<"Allocated"<GetEntriesFast()<<"\n"; - delete ClusterArray; - savedir->cd(); + delete clusterArray; + return 0; } -//______________________________________________________________________ -void AliTRDtracker::ReadClusters(TObjArray *array, const Char_t *filename) +//__________________________________________________________________ +Bool_t AliTRDtracker::GetTrackPoint(Int_t index, AliTrackPoint& p) const { // - // 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 + // Get track space point with index i + // Origin: C.Cheshkov // - TDirectory *savedir=gDirectory; - - TFile *file = TFile::Open(filename); - if (!file->IsOpen()) { - cerr<<"Can't open file with TRD clusters"<Get(treeName); - - if (!ClusterTree) { - cerr<<"AliTRDtracker::ReadClusters(): "; - cerr<<"can't get a tree with clusters !\n"; - return; - } - - TObjArray *ClusterArray = new TObjArray(400); - - ClusterTree->GetBranch("TRDcluster")->SetAddress(&ClusterArray); - - Int_t nEntries = (Int_t) ClusterTree->GetEntries(); - cout<<"found "<GetEvent(iEntry); - - // 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); - } - } - - file->Close(); - delete ClusterArray; - savedir->cd(); - -} + 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 range = fTrSec[0]->GetOuterTimeBin()+1; + const Int_t kRange = fTrSec[0]->GetOuterTimeBin()+1; - Bool_t label_added; + Bool_t labelAdded; - // Int_t s[range][2]; - Int_t **s = new Int_t* [range]; - for (i=0; iUncheckedAt(index); for (Int_t k=0; k<3; k++) { label=c->GetLabel(k); - label_added=kFALSE; j=0; + labelAdded=kFALSE; j=0; if (label >= 0) { - while ( (!label_added) && ( j < range ) ) { + while ( (!labelAdded) && ( j < kRange ) ) { if (s[j][0]==label || s[j][1]==0) { s[j][0]=label; s[j][1]=s[j][1]+1; - label_added=kTRUE; + labelAdded=kTRUE; } j++; } @@ -1640,13 +2108,13 @@ void AliTRDtracker::CookLabel(AliKalmanTrack* pt, Float_t wrong) const { Int_t max=0; label = -123456789; - for (i=0; imax) { max=s[i][1]; label=s[i][0]; } } - for (i=0; iGetNumberOfClusters(); for (Int_t i=from; iGetClusterIndex(i); AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(index); - c->Use(); + // + Int_t iplane = fGeom->GetPlane(c->GetDetector()); + if (track->fTracklets[iplane].GetChi2()>kmaxchi2) continue; + if (track->fTracklets[iplane].GetN()IsUsed())) c->Use(); } } //_____________________________________________________________________ -Double_t AliTRDtracker::ExpectedSigmaY2(Double_t r, Double_t tgl, Double_t pt) +Double_t AliTRDtracker::ExpectedSigmaY2(Double_t , Double_t , Double_t ) const { // Parametrised "expected" error of the cluster reconstruction in Y @@ -1680,7 +2160,7 @@ Double_t AliTRDtracker::ExpectedSigmaY2(Double_t r, Double_t tgl, Double_t pt) } //_____________________________________________________________________ -Double_t AliTRDtracker::ExpectedSigmaZ2(Double_t r, Double_t tgl) +Double_t AliTRDtracker::ExpectedSigmaZ2(Double_t , Double_t ) const { // Parametrised "expected" error of the cluster reconstruction in Z @@ -1688,16 +2168,15 @@ Double_t AliTRDtracker::ExpectedSigmaZ2(Double_t r, Double_t tgl) return s; } - //_____________________________________________________________________ -Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t local_tb) const +Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t localTB) const { // - // Returns radial position which corresponds to time bin + // Returns radial position which corresponds to time bin // in tracking sector and plane // - Int_t index = fTrSec[sector]->CookTimeBinIndex(plane, local_tb); + Int_t index = fTrSec[sector]->CookTimeBinIndex(plane, localTB); Int_t pl = fTrSec[sector]->GetLayerNumber(index); return fTrSec[sector]->GetLayer(pl)->GetX(); @@ -1706,27 +2185,28 @@ Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t local_tb) const //_______________________________________________________ AliTRDtracker::AliTRDpropagationLayer::AliTRDpropagationLayer(Double_t x, - Double_t dx, Double_t rho, Double_t rad_length, Int_t tb_index) + Double_t dx, Double_t rho, Double_t radLength, Int_t tbIndex, Int_t plane) { // // AliTRDpropagationLayer constructor // - fN = 0; fX = x; fdX = dx; fRho = rho; fX0 = rad_length; - fClusters = NULL; fIndex = NULL; fTimeBinIndex = tb_index; - + fN = 0; fX = x; fdX = dx; fRho = rho; fX0 = radLength; + fClusters = NULL; fIndex = NULL; fTimeBinIndex = tbIndex; + fPlane = plane; - for(Int_t i=0; i < (Int_t) kZONES; i++) { + for(Int_t i=0; i < (Int_t) kZones; i++) { fZc[i]=0; fZmax[i] = 0; } fYmax = 0; if(fTimeBinIndex >= 0) { - fClusters = new AliTRDcluster*[kMAX_CLUSTER_PER_TIME_BIN]; - fIndex = new UInt_t[kMAX_CLUSTER_PER_TIME_BIN]; + fClusters = new AliTRDcluster*[kMaxClusterPerTimeBin]; + fIndex = new UInt_t[kMaxClusterPerTimeBin]; } + for (Int_t i=0;i<5;i++) fIsHole[i] = kFALSE; fHole = kFALSE; fHoleZc = 0; fHoleZmax = 0; @@ -1740,427 +2220,169 @@ AliTRDtracker::AliTRDpropagationLayer::AliTRDpropagationLayer(Double_t x, //_______________________________________________________ void AliTRDtracker::AliTRDpropagationLayer::SetHole( Double_t Zmax, Double_t Ymax, Double_t rho, - Double_t rad_length, Double_t Yc, Double_t Zc) + Double_t radLength, Double_t Yc, Double_t Zc) { // // Sets hole in the layer // - fHole = kTRUE; fHoleZc = Zc; fHoleZmax = Zmax; fHoleYc = Yc; fHoleYmax = Ymax; fHoleRho = rho; - fHoleX0 = rad_length; + fHoleX0 = radLength; } //_______________________________________________________ -AliTRDtracker::AliTRDtrackingSector::AliTRDtrackingSector(AliTRDgeometry* geo, Int_t gs, AliTRDparameter* par) +AliTRDtracker::AliTRDtrackingSector::AliTRDtrackingSector(AliTRDgeometry* geo, Int_t gs) { // // AliTRDtrackingSector Constructor // + AliTRDpadPlane *padPlane = 0; fGeom = geo; - fPar = par; fGeomSector = gs; - fTzeroShift = 0.13; fN = 0; - - for(UInt_t i=0; i < kMAX_TIME_BIN_INDEX; i++) fTimeBinIndex[i] = -1; + // + // 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, rad_length; - Int_t steps; + Double_t x, 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; rad_length = 28.94; - - for(Int_t i=0; iCamHght(); // Amplification region + //Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region + + Int_t tbIndex; + const Int_t kNchambers = AliTRDgeometry::Ncham(); + Double_t ymax = 0; + Double_t ymaxsensitive=0; + Double_t *zc = new Double_t[kNchambers]; + Double_t *zmax = new Double_t[kNchambers]; + Double_t *zmaxsensitive = new Double_t[kNchambers]; + + AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance(); + if (!commonParam) + { + printf(" "); + printf("Could not get common params\n"); + return; } + + for(Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) { - // set time bins in the outer field cage vessel - - dx = 50e-4; xin = xout; xout = xin + dx; rho = 1.71; rad_length = 44.77; // Tedlar - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); - - dx = 0.02; xin = xout; xout = xin + dx; rho = 1.45; rad_length = 44.86; // prepreg - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); - - dx = 2.; xin = xout; xout = xin + dx; rho = 1.45*0.02; rad_length = 41.28; // Nomex - steps = 5; dx = (xout - xin)/steps; - for(Int_t i=0; iGetChamberWidth(plane)/2.; + // Modidified for new pad plane class, 22.04.05 (C.B.) + padPlane = commonParam->GetPadPlane(plane,0); + ymaxsensitive = (padPlane->GetColSize(1)*padPlane->GetNcols()-4)/2.; + for(Int_t ch = 0; ch < kNchambers; ch++) { + zmax[ch] = fGeom->GetChamberLength(plane,ch)/2; + // + // Modidified for new pad plane class, 22.04.05 (C.B.) + Float_t pad = padPlane->GetRowSize(1); + Float_t row0 = commonParam->GetRow0(plane,ch,0); + Int_t nPads = commonParam->GetRowMax(plane,ch,0); + zmaxsensitive[ch] = Float_t(nPads)*pad/2.; + zc[ch] = -(pad * nPads)/2 + row0; + } - dx = 0.02; xin = xout; xout = xin + dx; rho = 1.45; rad_length = 44.86; // prepreg - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); + dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0) + / AliTRDcalibDB::Instance()->GetSamplingFrequency(); + rho = 0.00295 * 0.85; radLength = 11.0; + + Double_t x0 = (Double_t) AliTRDgeometry::GetTime0(plane); + //Double_t xbottom = x0 - dxDrift; + //Double_t xtop = x0 + dxAmp; + // + Int_t nTimeBins = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); + for (Int_t iTime = 0; iTimeSetYmax(ymax,ymaxsensitive); + ppl->SetZ(zc, zmax, zmaxsensitive); + ppl->SetHoles(holes); + InsertLayer(ppl); + } + } - dx = 50e-4; xin = xout; xout = xin + dx; rho = 1.71; rad_length = 44.77; // Tedlar - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); + MapTimeBinLayers(); + delete [] zc; + delete [] zmax; + delete [] zmaxsensitive; +} - // set time bins in CO2 +//______________________________________________________ - xin = xout; xout = 275.0; - steps = 50; dx = (xout - xin)/steps; - rho = 1.977e-3; rad_length = 36.2; - - for(Int_t i=0; i in plane + // + // + Int_t tbPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins(); + Int_t gtb = (plane+1) * tbPerPlane - localTB -1; + if (localTB<0) return -1; + if (gtb<0) return -1; + return gtb; +} - // set time bins in the outer containment vessel +//______________________________________________________ - dx = 50e-4; xin = xout; xout = xin + dx; rho = 2.7; rad_length = 24.01; // Al - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); +void AliTRDtracker::AliTRDtrackingSector::MapTimeBinLayers() +{ + // + // For all sensitive time bins sets corresponding layer index + // in the array fTimeBins + // - dx = 50e-4; xin = xout; xout = xin + dx; rho = 1.71; rad_length = 44.77; // Tedlar - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); + Int_t index; - dx = 0.06; xin = xout; xout = xin + dx; rho = 1.45; rad_length = 44.86; // prepreg - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); + 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()); - dx = 3.; xin = xout; xout = xin + dx; rho = 1.45*0.02; rad_length = 41.28; // Nomex - steps = 10; dx = (xout - xin)/steps; - for(Int_t i=0; i= (Int_t) kMaxTimeBinIndex) { + printf("*** AliTRDtracker::MapTimeBinLayers: \n"); + printf(" index %d exceeds allowed maximum of %d!\n", + index, kMaxTimeBinIndex-1); + continue; + } + fTimeBinIndex[index] = i; } - - dx = 0.06; xin = xout; xout = xin + dx; rho = 1.45; rad_length = 44.86; // prepreg - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); - - dx = 50e-4; xin = xout; xout = xin + dx; rho = 1.71; rad_length = 44.77; // Tedlar - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); +} - dx = 50e-4; xin = xout; xout = xin + dx; rho = 2.7; rad_length = 24.01; // Al - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - InsertLayer(ppl); - Double_t xtrd = (Double_t) fGeom->Rmin(); +//______________________________________________________ - // add layers between TPC and TRD (Air temporarily) - xin = xout; xout = xtrd; - steps = 50; dx = (xout - xin)/steps; - rho = 1.2e-3; rad_length = 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, tb_index; - const Int_t nChambers = AliTRDgeometry::Ncham(); - Double_t Ymax = 0, holeYmax = 0; - Double_t * Zc = new Double_t[nChambers]; - Double_t * Zmax = new Double_t[nChambers]; - 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; rad_length = 40.6; - for(Int_t i=0; iGetPHOShole()) && (fGeomSector >= 2) && (fGeomSector <= 6)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - if((fGeom->GetRICHhole()) && (fGeomSector >= 12) && (fGeomSector <= 14)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - InsertLayer(ppl); - } - - Ymax = fGeom->GetChamberWidth(plane)/2; - for(Int_t ch = 0; ch < nChambers; 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); - Zc[ch] = (pad * nPads)/2 + row0 - pad/2; - } - - dx = fPar->GetTimeBinSize(); - rho = 0.00295 * 0.85; rad_length = 11.0; - - 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); - - for(tb = 0; tb < steps; tb++) { - x = x0 + tb * dx + dx/2; - tb_index = CookTimeBinIndex(plane, -tb-1); - ppl = new AliTRDpropagationLayer(x,dx,rho,rad_length,tb_index); - ppl->SetYmax(Ymax); - for(Int_t ch = 0; ch < nChambers; ch++) { - ppl->SetZmax(ch, Zc[ch], Zmax[ch]); - } - if((fGeom->GetPHOShole()) && (fGeomSector >= 2) && (fGeomSector <= 6)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - if((fGeom->GetRICHhole()) && (fGeomSector >= 12) && (fGeomSector <= 14)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - InsertLayer(ppl); - } - tb_index = CookTimeBinIndex(plane, -steps); - x = (x + dx/2 + xtop)/2; - dx = 2*(xtop-x); - ppl = new AliTRDpropagationLayer(x,dx,rho,rad_length,tb_index); - ppl->SetYmax(Ymax); - for(Int_t ch = 0; ch < nChambers; ch++) { - ppl->SetZmax(ch, Zc[ch], Zmax[ch]); - } - if((fGeom->GetPHOShole()) && (fGeomSector >= 2) && (fGeomSector <= 6)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - if((fGeom->GetRICHhole()) && (fGeomSector >= 12) && (fGeomSector <= 14)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - InsertLayer(ppl); - - // Drift region - dx = fPar->GetTimeBinSize(); - steps = (Int_t) (dxDrift/dx); - - for(tb = 0; tb < steps; tb++) { - x = x0 - tb * dx - dx/2; - tb_index = CookTimeBinIndex(plane, tb); - - ppl = new AliTRDpropagationLayer(x,dx,rho,rad_length,tb_index); - ppl->SetYmax(Ymax); - for(Int_t ch = 0; ch < nChambers; ch++) { - ppl->SetZmax(ch, Zc[ch], Zmax[ch]); - } - if((fGeom->GetPHOShole()) && (fGeomSector >= 2) && (fGeomSector <= 6)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - if((fGeom->GetRICHhole()) && (fGeomSector >= 12) && (fGeomSector <= 14)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - InsertLayer(ppl); - } - tb_index = CookTimeBinIndex(plane, steps); - x = (x - dx/2 + xbottom)/2; - dx = 2*(x-xbottom); - ppl = new AliTRDpropagationLayer(x,dx,rho,rad_length,tb_index); - ppl->SetYmax(Ymax); - for(Int_t ch = 0; ch < nChambers; ch++) { - ppl->SetZmax(ch, Zc[ch], Zmax[ch]); - } - if((fGeom->GetPHOShole()) && (fGeomSector >= 2) && (fGeomSector <= 6)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - if((fGeom->GetRICHhole()) && (fGeomSector >= 12) && (fGeomSector <= 14)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - InsertLayer(ppl); - - // Pad Plane - xin = xtop; dx = 0.025; xout = xin + dx; rho = 1.7; rad_length = 33.0; - ppl = new AliTRDpropagationLayer(xin+dx/2,dx,rho,rad_length,-1); - if((fGeom->GetPHOShole()) && (fGeomSector >= 2) && (fGeomSector <= 6)) { - holeYmax = (xin+dx/2)*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - if((fGeom->GetRICHhole()) && (fGeomSector >= 12) && (fGeomSector <= 14)) { - holeYmax = (xin+dx/2)*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - InsertLayer(ppl); - - // Rohacell - xin = xout; xout = xtrd + (plane + 1) * dxPlane - dxSpace; - steps = 5; dx = (xout - xin)/steps; rho = 0.074; rad_length = 40.6; - for(Int_t i=0; iGetPHOShole()) && (fGeomSector >= 2) && (fGeomSector <= 6)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - if((fGeom->GetRICHhole()) && (fGeomSector >= 12) && (fGeomSector <= 14)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - InsertLayer(ppl); - } - - // Space between the chambers, air - xin = xout; xout = xtrd + (plane + 1) * dxPlane; - steps = 5; dx = (xout - xin)/steps; rho = 1.29e-3; rad_length = 36.66; - for(Int_t i=0; iGetPHOShole()) && (fGeomSector >= 2) && (fGeomSector <= 6)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - if((fGeom->GetRICHhole()) && (fGeomSector >= 12) && (fGeomSector <= 14)) { - holeYmax = x*TMath::Tan(0.5*alpha); - ppl->SetHole(holeYmax, holeZmax); - } - InsertLayer(ppl); - } - } - - // Space between the TRD and RICH - Double_t xRICH = 500.; - xin = xout; xout = xRICH; - steps = 200; dx = (xout - xin)/steps; rho = 1.29e-3; rad_length = 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 tb_per_plane = TMath::Min(tbAmp,maxAmp) + TMath::Min(tbDrift,maxDrift); - - Int_t gtb = (plane+1) * tb_per_plane - local_tb - 1 - TMath::Min(tbAmp,maxAmp); - - if((local_tb < 0) && - (TMath::Abs(local_tb) > TMath::Min(tbAmp,maxAmp))) return -1; - if(local_tb >= TMath::Min(tbDrift,maxDrift)) return -1; - - return gtb; - - -} - -//______________________________________________________ - -void AliTRDtracker::AliTRDtrackingSector::MapTimeBinLayers() -{ - // - // For all sensitive time bins sets corresponding layer index - // in the array fTimeBins - // - - Int_t index; - - 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) kMAX_TIME_BIN_INDEX) { - printf("*** AliTRDtracker::MapTimeBinLayers: \n"); - printf(" index %d exceeds allowed maximum of %d!\n", - index, kMAX_TIME_BIN_INDEX-1); - continue; - } - fTimeBinIndex[index] = i; - } - - Double_t x1, dx1, x2, dx2, gap; - - 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 -{ - // - // Returns the number of time bin which in radial position is closest to - // +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; @@ -2207,7 +2429,7 @@ Int_t AliTRDtracker::AliTRDtrackingSector::GetNumberOfTimeBins() const // Int_t tb, layer; - for(tb = kMAX_TIME_BIN_INDEX-1; tb >=0; tb--) { + for(tb = kMaxTimeBinIndex-1; tb >=0; tb--) { layer = GetLayerNumber(tb); if(layer>=0) break; } @@ -2222,7 +2444,7 @@ void AliTRDtracker::AliTRDtrackingSector::InsertLayer(AliTRDpropagationLayer* pl // Insert layer in fLayers array. // Layers are sorted according to X coordinate. - if ( fN == ((Int_t) kMAX_LAYERS_PER_SECTOR)) { + if ( fN == ((Int_t) kMaxLayersPerSector)) { printf("AliTRDtrackingSector::InsertLayer(): Too many layers !\n"); return; } @@ -2252,45 +2474,38 @@ Int_t AliTRDtracker::AliTRDtrackingSector::Find(Double_t x) const return m; } -//______________________________________________________ -void AliTRDtracker::AliTRDpropagationLayer::GetPropagationParameters( - Double_t y, Double_t z, Double_t &dx, Double_t &rho, Double_t &rad_length, - Bool_t &lookForCluster) const + + + +//______________________________________________________ +void AliTRDtracker::AliTRDpropagationLayer::SetZ(Double_t* center, Double_t *w, Double_t *wsensitive ) { // - // Returns radial step , density , rad. length , - // and sensitivity in point + // set centers and the width of sectors + 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++){ + fIsHole[icham] = holes[icham]; + if (holes[icham]) fHole = kTRUE; + } +} - dx = fdX; - rho = fRho; - rad_length = fX0; - lookForCluster = kFALSE; - // check dead regions - if(fTimeBinIndex >= 0) { - for(Int_t ch = 0; ch < (Int_t) kZONES; ch++) { - if(TMath::Abs(z - fZc[ch]) < fZmax[ch]) - lookForCluster = kTRUE; - // else { rho = 1.7; rad_length = 33.0; } // G10 - } - if(TMath::Abs(y) > fYmax) lookForCluster = kFALSE; - if(!lookForCluster) { - // rho = 1.7; rad_length = 33.0; // G10 - } - } - // check hole - if(fHole && (TMath::Abs(y - fHoleYc) < fHoleYmax) && - (TMath::Abs(z - fHoleZc) < fHoleZmax)) { - lookForCluster = kFALSE; - rho = fHoleRho; - rad_length = fHoleX0; - } - return; -} //______________________________________________________ @@ -2305,7 +2520,7 @@ void AliTRDtracker::AliTRDpropagationLayer::InsertCluster(AliTRDcluster* c, return; } - if (fN== (Int_t) kMAX_CLUSTER_PER_TIME_BIN) { + if (fN== (Int_t) kMaxClusterPerTimeBin) { printf("AliTRDpropagationLayer::InsertCluster(): Too many clusters !\n"); return; } @@ -2318,10 +2533,11 @@ void AliTRDtracker::AliTRDpropagationLayer::InsertCluster(AliTRDcluster* c, //______________________________________________________ -Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Double_t y) const { +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, e=fN-1, m=(b+e)/2; @@ -2332,26 +2548,1153 @@ Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Double_t y) const { 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); iGetY(); + // + if (ycl > y+maxroad) break; + if (TMath::Abs(c->GetZ()-z) > maxroadz) continue; + if (TMath::Abs(ycl-y)GetTiltingAngle()); Int_t det = c->GetDetector(); Int_t plane = fGeom->GetPlane(det); - - if((plane == 1) || (plane == 3) || (plane == 5)) h01=-h01; + 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) +{ + // *** ADDED TO GET MORE INFORMATION FOR TRD PID ---- PS + // This is setting fdEdxPlane and fTimBinPlane + // Sums up the charge in each plane for track TRDtrack and also get the + // Time bin for Max. Cluster + // Prashant Shukla (shukla@physi.uni-heidelberg.de) + + Double_t clscharge[kNPlane], maxclscharge[kNPlane]; + Int_t nCluster[kNPlane], timebin[kNPlane]; + + //Initialization of cluster charge per plane. + for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) { + clscharge[iPlane] = 0.0; + nCluster[iPlane] = 0; + timebin[iPlane] = -1; + maxclscharge[iPlane] = 0.0; + } + + // Loop through all clusters associated to track TRDtrack + Int_t nClus = TRDtrack.GetNumberOfClusters(); // from Kalmantrack + for (Int_t iClus = 0; iClus < nClus; iClus++) { + Double_t charge = TRDtrack.GetClusterdQdl(iClus); + Int_t index = TRDtrack.GetClusterIndex(iClus); + AliTRDcluster *TRDcluster = (AliTRDcluster *) GetCluster(index); + if (!TRDcluster) continue; + Int_t tb = TRDcluster->GetLocalTimeBin(); + if (!tb) continue; + Int_t detector = TRDcluster->GetDetector(); + Int_t iPlane = fGeom->GetPlane(detector); + clscharge[iPlane] = clscharge[iPlane]+charge; + if(charge > maxclscharge[iPlane]) { + maxclscharge[iPlane] = charge; + timebin[iPlane] = tb; + } + nCluster[iPlane]++; + } // end of loop over cluster + + // Setting the fdEdxPlane and fTimBinPlane variabales + Double_t Total_ch = 0; + for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) { + // Quality control of TRD track. + if (nCluster[iPlane]<= 5) { + clscharge[iPlane]=0.0; + timebin[iPlane]=-1; + } + if (nCluster[iPlane]) clscharge[iPlane] /= nCluster[iPlane]; + TRDtrack.SetPIDsignals(clscharge[iPlane], iPlane); + TRDtrack.SetPIDTimBin(timebin[iPlane], iPlane); + Total_ch= Total_ch+clscharge[iPlane]; + } + // Int_t i; + // Int_t nc=TRDtrack.GetNumberOfClusters(); + // Float_t dedx=0; + // for (i=0; iGetX(); + Double_t sigmaz = TMath::Sqrt(TMath::Abs(track->GetSigmaZ2())); + Int_t nall=0; + Int_t nfound=0; + Double_t h01 =0; + Int_t plane =-1; + Float_t padlength=0; + AliTRDtrack track2(*track); + Float_t snpy = track->GetSnp(); + Float_t tany = TMath::Sqrt(snpy*snpy/(1.-snpy*snpy)); + if (snpy<0) tany*=-1; + // + Double_t sy2=ExpectedSigmaY2(x0,track->GetTgl(),track->GetPt()); + Double_t sz2=ExpectedSigmaZ2(x0,track->GetTgl()); + Double_t road = 15.*sqrt(track->GetSigmaY2() + sy2); + if (road>6.) road=6.; + + // + for (Int_t it=0;itGetLayer(it+t0)); + if (timeBin==0) continue; // no indexes1 + Int_t maxn = timeBin; + x[it] = timeBin.GetX(); + track2.PropagateTo(x[it]); + yt[it] = track2.GetY(); + zt[it] = track2.GetZ(); + + Double_t y=yt[it],z=zt[it]; + Double_t chi2 =1000000; + nall++; + // + // find 2 nearest cluster at given time bin + // + // + for (Int_t i=timeBin.Find(y-road); iGetDetector(); + plane = fGeom->GetPlane(det); + padlength = TMath::Sqrt(c->GetSigmaZ2()*12.); + } + // if (c->GetLocalTimeBin()==0) continue; + if (c->GetY() > y+road) break; + if((c->GetZ()-z)*(c->GetZ()-z) > 12. * sz2) continue; + + Double_t dist = TMath::Abs(c->GetZ()-z); + if (dist> (0.5*padlength+6.*sigmaz)) continue; // 6 sigma boundary cut + Double_t cost = 0; + // + if (dist> (0.5*padlength-sigmaz)){ // sigma boundary cost function + cost = (dist-0.5*padlength)/(2.*sigmaz); + if (cost>-1) cost= (cost+1.)*(cost+1.); + else cost=0; + } + // Int_t label = TMath::Abs(track->GetLabel()); + // if (c->GetLabel(0)!=label && c->GetLabel(1)!=label&&c->GetLabel(2)!=label) continue; + chi2=track2.GetPredictedChi2(c,h01)+cost; + // + clfound++; + if (chi2 > maxChi2[1]) continue; + + for (Int_t ih=2;ih<9; ih++){ //store the clusters in the road + if (cl[ih][it]==0){ + cl[ih][it] = c; + indexes[ih][it] =timeBin.GetIndex(i); // index - 9 - reserved for outliers + break; + } + } + // + if (chi2 t1-t0) continue; + if (!cl[0][it+dt]) continue; + zmean[it]+=cl[0][it+dt]->GetZ(); + nmean[it]+=1.; + } + zmean[it]/=nmean[it]; + } + // + for (Int_t it=0; itGetX(); + Double_t ytrack,ztrack; + track2.GetProlongation(xcluster, ytrack, ztrack ); + dz[ih][it] = cl[ih][it]->GetZ()- ztrack; // calculate distance from track in z + dy[ih][it] = cl[ih][it]->GetY()+ dz[ih][it]*h01 -ytrack; // in y + } + // minimize changes + if (!cl[0][it]) continue; + if (TMath::Abs(cl[0][it]->GetZ()-zmean[it])> padlength*0.8 &&cl[1][it]) + if (TMath::Abs(cl[1][it]->GetZ()-zmean[it])< padlength*0.5){ + best[0][it]=1; + } + } + // + // iterative choosing 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;itGetZ(); + 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; itdGetZ(); + 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; // normalized residuals - for line fit + Double_t sigma1 = 0; // normalized residuals - constant fit + // + for (Int_t it=0;itGetSigmaY2(); + Double_t weighty = (moffset[iter]/sigmatr2)/sweight; // weighted mean + Double_t sigmacl = TMath::Sqrt(sigma1*sigma1+track->GetSigmaY2()); // + Double_t mindist=100000; + Int_t ihbest=0; + for (Int_t ih=0;ih<10;ih++){ + if (!cl[ih][it]) break; + Double_t dist2 = (dy[ih][it]-weighty)/sigmacl; + dist2*=dist2; //chi2 distance + if (dist2GetSigmaY2(); + Double_t sa2 = sangle[iter] + track->fCee; + Double_t say = track->fCey; + // Double_t chi20 = mean[bestiter]*mean[bestiter]/sy2+angle[bestiter]*angle[bestiter]/sa2; + // Double_t chi21 = mean[iter]*mean[iter]/sy2+angle[iter]*angle[iter]/sa2; + + Double_t detchi = sy2*sa2-say*say; + Double_t invers[3] = {sa2/detchi, sy2/detchi, -say/detchi}; //inverse value of covariance matrix + + Double_t chi20 = mean[bestiter]*mean[bestiter]*invers[0]+angle[bestiter]*angle[bestiter]*invers[1]+ + 2.*mean[bestiter]*angle[bestiter]*invers[2]; + Double_t chi21 = mean[iter]*mean[iter]*invers[0]+angle[iter]*angle[iter]*invers[1]+ + 2*mean[iter]*angle[iter]*invers[2]; + tchi2s[iter] =chi21; + // + if (changes[iter]<=changes[bestiter] && chi2125.) sigma2*=tchi2s[bestiter]/25.; + //if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept + + Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(AliTRDcalibDB::Instance()->GetVdrift(0,0,0)); + Double_t expectederr = sigma2*sigma2+0.01*0.01; + if (mpads>3.5) expectederr += (mpads-3.5)*0.04; + if (changes[bestiter]>1) expectederr+= changes[bestiter]*0.01; + expectederr+=(0.03*(tany-exB)*(tany-exB))*15; + // if (tchi2s[bestiter]>18.) expectederr*= tchi2s[bestiter]/18.; + //expectederr+=10000; + for (Int_t it=0;itSetSigmaY2(expectederr); // set cluster error + if (!cl[best[bestiter][it]][it]->IsUsed()){ + cl[best[bestiter][it]][it]->SetY( cl[best[bestiter][it]][it]->GetY()); + // cl[best[bestiter][it]][it]->Use(); + } + // + // 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 (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(); + } + } + // + // 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 (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]; + //if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>4 && cl[best[bestiter][it]][it]->GetLocalTimeBin()<18) clusters[it+t0] = indexes[best[bestiter][it]][it]; //Test + } + // + // set tracklet parameters + // + Double_t trackleterr2 = smoffset[bestiter]+0.01*0.01; + if (mpads>3.5) trackleterr2 += (mpads-3.5)*0.04; + trackleterr2+= changes[bestiter]*0.01; + trackleterr2*= TMath::Max(14.-nfound,1.); + trackleterr2+= 0.2*(tany-exB)*(tany-exB); + // + tracklet.Set(xmean, track2.GetY()+moffset[bestiter], meanz[bestiter], track2.GetAlpha(), trackleterr2); //set tracklet parameters + 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->fTracklets[plane] = tracklet; + track->fNWrong+=nbad[0]; + // + // 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;it0;itime--){ + if (seeds[ilayer].fIndexes[itime]>0){ + index = seeds[ilayer].fIndexes[itime]; + cl = seeds[ilayer].fClusters[itime]; + break; + } + } + } + if (index>0) break; + } + if (cl==0) return 0; + AliTRDtrack * track = new AliTRDtrack(cl,index,¶ms[1],c, params[0],params[6]*alpha+shift); + track->PropagateTo(params[0]-5.); + track->ResetCovariance(1); + // + Int_t rc=FollowBackProlongation(*track); + if (rc<30) { + delete track; + track =0; + }else{ + track->CookdEdx(); + CookdEdxTimBin(*track); + CookLabel(track, 0.9); + } + return track; +} + + + + + + +AliTRDseed::AliTRDseed() +{ + // + // + fTilt =0; // tilting angle + fPadLength = 0; // pad length + fX0 = 0; // x0 position + for (Int_t i=0;i<25;i++){ + fX[i]=0; // !x position + fY[i]=0; // !y position + fZ[i]=0; // !z position + fIndexes[i]=0; // !indexes + fClusters[i]=0; // !clusters + } + for (Int_t i=0;i<2;i++){ + fYref[i]=0; // reference y + fZref[i]=0; // reference z + fYfit[i]=0; // y fit position +derivation + fYfitR[i]=0; // y fit position +derivation + fZfit[i]=0; // z fit position + fZfitR[i]=0; // z fit position + fLabels[i]=0; // labels + } + fSigmaY = 0; + fSigmaY2 = 0; + fMeanz=0; // mean vaue of z + fZProb=0; // max probbable z + fMPads=0; + // + fN=0; // number of associated clusters + fN2=0; // number of not crossed + fNUsed=0; // number of used clusters + fNChange=0; // change z counter +} + +void AliTRDseed::Reset(){ + // + // reset seed + // + for (Int_t i=0;i<25;i++){ + fX[i]=0; // !x position + fY[i]=0; // !y position + fZ[i]=0; // !z position + fIndexes[i]=0; // !indexes + fClusters[i]=0; // !clusters + fUsable[i] = kFALSE; + } + for (Int_t i=0;i<2;i++){ + fYref[i]=0; // reference y + fZref[i]=0; // reference z + fYfit[i]=0; // y fit position +derivation + fYfitR[i]=0; // y fit position +derivation + fZfit[i]=0; // z fit position + fZfitR[i]=0; // z fit position + fLabels[i]=-1; // labels + } + fSigmaY =0; //"robust" sigma in y + fSigmaY2=0; //"robust" sigma in y + fMeanz =0; // mean vaue of z + fZProb =0; // max probbable z + fMPads =0; + // + fN=0; // number of associated clusters + fN2=0; // number of not crossed + fNUsed=0; // number of used clusters + fNChange=0; // change z counter +} + +void AliTRDseed::CookLabels(){ + // + // cook 2 labels for seed + // + Int_t labels[200]; + Int_t out[200]; + Int_t nlab =0; + for (Int_t i=0;i<25;i++){ + if (!fClusters[i]) continue; + for (Int_t ilab=0;ilab<3;ilab++){ + if (fClusters[i]->GetLabel(ilab)>=0){ + labels[nlab] = fClusters[i]->GetLabel(ilab); + nlab++; + } + } + } + Int_t nlab2 = AliTRDtracker::Freq(nlab,labels,out,kTRUE); + fLabels[0] = out[0]; + if (nlab2>1 && out[3]>1) fLabels[1] =out[2]; +} + +void AliTRDseed::UseClusters() +{ + // + // use clusters + // + for (Int_t i=0;i<25;i++){ + if (!fClusters[i]) continue; + if (!(fClusters[i]->IsUsed())) fClusters[i]->Use(); + } +} + + +void AliTRDseed::Update(){ + // + // + // + const Float_t ratio = 0.8; + const Int_t kClmin = 6; + const Float_t kmaxtan = 2; + if (TMath::Abs(fYref[1])>kmaxtan) return; // too much inclined track + // + Float_t sigmaexp = 0.05+TMath::Abs(fYref[1]*0.25); // expected r.m.s in y direction + Float_t ycrosscor = fPadLength*fTilt*0.5; // y correction for crossing + fNChange =0; + // + Double_t sumw, sumwx,sumwx2; + Double_t sumwy, sumwxy, sumwz,sumwxz; + Int_t zints[25]; // histograming of the z coordinate - get 1 and second max probable coodinates in z + Int_t zouts[50]; // + Float_t allowedz[25]; // allowed z for given time bin + Float_t yres[25]; // residuals from reference + Float_t anglecor = fTilt*fZref[1]; //correction to the angle + // + // + fN=0; fN2 =0; + for (Int_t i=0;i<25;i++){ + yres[i] =10000; + if (!fClusters[i]) continue; + yres[i] = fY[i]-fYref[0]-(fYref[1]+anglecor)*fX[i]; // residual y + zints[fN] = Int_t(fZ[i]); + fN++; + } + if (fN12.) zouts[3]=0; // z distance bigger than pad - length + // + Int_t breaktime = -1; + Bool_t mbefore = kFALSE; + Int_t cumul[25][2]; + Int_t counts[2]={0,0}; + // + if (zouts[3]>=3){ + // + // find the break time allowing one chage on pad-rows with maximal numebr of accepted clusters + // + fNChange=1; + for (Int_t i=0;i<25;i++){ + cumul[i][0] = counts[0]; + cumul[i][1] = counts[1]; + if (TMath::Abs(fZ[i]-zouts[0])<2) counts[0]++; + if (TMath::Abs(fZ[i]-zouts[2])<2) counts[1]++; + } + Int_t maxcount = 0; + for (Int_t i=0;i<24;i++) { + Int_t after = cumul[24][0]-cumul[i][0]; + Int_t before = cumul[i][1]; + if (after+before>maxcount) { + maxcount=after+before; + breaktime=i; + mbefore=kFALSE; + } + after = cumul[24][1]-cumul[i][1]; + before = cumul[i][0]; + if (after+before>maxcount) { + maxcount=after+before; + breaktime=i; + mbefore=kTRUE; + } + } + breaktime-=1; + } + for (Int_t i=0;i<25;i++){ + if (i>breaktime) allowedz[i] = mbefore ? zouts[2]:zouts[0]; + if (i<=breaktime) allowedz[i] = (!mbefore) ? zouts[2]:zouts[0]; + } + if ( (allowedz[0]>allowedz[24] && fZref[1]<0) || (allowedz[0]0)){ + // + // tracklet z-direction not in correspondance with track z direction + // + fNChange =0; + for (Int_t i=0;i<25;i++){ + allowedz[i] = zouts[0]; //only longest taken + } + } + // + if (fNChange>0){ + // + // cross pad -row tracklet - take the step change into account + // + for (Int_t i=0;i<25;i++){ + if (!fClusters[i]) continue; + if (TMath::Abs(fZ[i]-allowedz[i])>2) continue; + yres[i] = fY[i]-fYref[0]-(fYref[1]+anglecor)*fX[i]; // residual y + if (TMath::Abs(fZ[i]-fZProb)>2){ + if (fZ[i]>fZProb) yres[i]+=fTilt*fPadLength; + if (fZ[i]2) continue; + yres2[fN2] = yres[i]; + fN2++; + } + if (fN22) continue; + if (TMath::Abs(yres[i]-mean)>4.*sigma) continue; + fUsable[i] = kTRUE; + fN2++; + fMPads+=fClusters[i]->GetNPads(); + Float_t weight =1; + if (fClusters[i]->GetNPads()>4) weight=0.5; + if (fClusters[i]->GetNPads()>5) weight=0.2; + // + Double_t x = fX[i]; + sumw+=weight; sumwx+=x*weight; sumwx2+=x*x*weight; + sumwy+=weight*yres[i]; sumwxy+=weight*(yres[i])*x; + sumwz+=weight*fZ[i]; sumwxz+=weight*fZ[i]*x; + } + if (fN20){ + // tracklet on boundary + if (fMeanzfZProb) correction = -ycrosscor; + } + Double_t det = sumw*sumwx2-sumwx*sumwx; + fYfitR[0] = (sumwx2*sumwy-sumwx*sumwxy)/det; + fYfitR[1] = (sumw*sumwxy-sumwx*sumwy)/det; + // + fSigmaY2 =0; + for (Int_t i=0;i<25;i++){ + if (!fUsable[i]) continue; + Float_t delta = yres[i]-fYfitR[0]-fYfitR[1]*fX[i]; + fSigmaY2+=delta*delta; + } + fSigmaY2 = TMath::Sqrt(fSigmaY2/Float_t(fN2-2)); + // + fZfitR[0] = (sumwx2*sumwz-sumwx*sumwxz)/det; + fZfitR[1] = (sumw*sumwxz-sumwx*sumwz)/det; + fZfit[0] = (sumwx2*sumwz-sumwx*sumwxz)/det; + fZfit[1] = (sumw*sumwxz-sumwx*sumwz)/det; + fYfitR[0] += fYref[0]+correction; + fYfitR[1] += fYref[1]; + fYfit[0] = fYfitR[0]; + fYfit[1] = fYfitR[1]; + // + // + UpdateUsed(); +} + + + + + + +void AliTRDseed::UpdateUsed(){ + // + fNUsed =0; + for (Int_t i=0;i<25;i++){ + if (!fClusters[i]) continue; + if ((fClusters[i]->IsUsed())) fNUsed++; + } +} + + +void AliTRDseed::EvaluateUni(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh) +{ + // + // robust estimator in 1D case MI version + // + //for the univariate case + //estimates of location and scatter are returned in mean and sigma parameters + //the algorithm works on the same principle as in multivariate case - + //it finds a subset of size hh with smallest sigma, and then returns mean and + //sigma of this subset + + if (hh==0) + hh=(nvectors+2)/2; + Double_t faclts[]={2.6477,2.5092,2.3826,2.2662,2.1587,2.0589,1.9660,1.879,1.7973,1.7203,1.6473}; + Int_t *index=new Int_t[nvectors]; + TMath::Sort(nvectors, data, index, kFALSE); + // + Int_t nquant = TMath::Min(Int_t(Double_t(((hh*1./nvectors)-0.5)*40))+1, 11); + Double_t factor = faclts[nquant-1]; + // + // + Double_t sumx =0; + Double_t sumx2 =0; + Int_t bestindex = -1; + Double_t bestmean = 0; + Double_t bestsigma = data[index[nvectors-1]]-data[index[0]]; // maximal possible sigma + for (Int_t i=0; icseed[iLayer].fPadLength*0.5+1) + acceptablez = kFALSE; + } + } + if (!acceptablez){ + Double_t zmf = cseed[2].fZref[0]+cseed[2].fZref[1]*(xref2-cseed[2].fX0); + Double_t dzmf = (cseed[2].fZref[1]+ cseed[3].fZref[1])*0.5; + fitterT2.FixParameter(3,zmf); + fitterT2.FixParameter(4,dzmf); + fitterT2.Eval(); + fitterT2.ReleaseParameter(3); + fitterT2.ReleaseParameter(4); + rpolz0 = fitterT2.GetParameter(3); + rpolz1 = fitterT2.GetParameter(4); + } + // + Double_t chi2TR = fitterT2.GetChisquare()/Float_t(npointsT); + Double_t params[3]; + params[0] = fitterT2.GetParameter(0); + params[1] = fitterT2.GetParameter(1); + params[2] = fitterT2.GetParameter(2); + Double_t CR = 1+params[1]*params[1]-params[2]*params[0]; + for (Int_t iLayer = 0; iLayer<6;iLayer++){ + Double_t x = cseed[iLayer].fX0; + Double_t y=0,dy=0, z=0, dz=0; + // y + Double_t res2 = (x*params[0]+params[1]); + res2*=res2; + res2 = 1.-params[2]*params[0]+params[1]*params[1]-res2; + if (res2>=0){ + res2 = TMath::Sqrt(res2); + y = (1-res2)/params[0]; + } + //dy + Double_t x0 = -params[1]/params[0]; + if (-params[2]*params[0]+params[1]*params[1]+1>0){ + Double_t Rm1 = params[0]/TMath::Sqrt(-params[2]*params[0]+params[1]*params[1]+1); + if ( 1./(Rm1*Rm1)-(x-x0)*(x-x0)>0){ + Double_t res = (x-x0)/TMath::Sqrt(1./(Rm1*Rm1)-(x-x0)*(x-x0)); + if (params[0]<0) res*=-1.; + dy = res; + } + } + z = rpolz0+rpolz1*(x-xref2); + dz = rpolz1; + cseed[iLayer].fYref[0] = y; + cseed[iLayer].fYref[1] = dy; + cseed[iLayer].fZref[0] = z; + cseed[iLayer].fZref[1] = dz; + cseed[iLayer].fC = CR; + // + } + return chi2TR; +}