///////////////////////////////////////////////////////////////////////////////
// //
-// The standard TRD tracker //
+// The standard TRD tracker //
+// Based on Kalman filltering approach //
+// //
+// Authors: //
+// M. Ivanov (Marian.Ivanov@cern.ch) //
+// Y. Belikov (Jouri.Belikov@cern.ch) //
// //
///////////////////////////////////////////////////////////////////////////////
+
#include <Riostream.h>
#include <TFile.h>
#include <TBranch.h>
#include <TTree.h>
#include <TObjArray.h>
+#include <TTreeStream.h>
+#include <TGraph.h>
+#include <TLinearFitter.h>
+#include <TH1D.h>
+#include <TH2D.h>
+
+#include "AliESD.h"
+#include "AliAlignObj.h"
+#include "AliRieman.h"
+#include "AliTrackPointArray.h"
#include "AliTRDgeometry.h"
-#include "AliTRDparameter.h"
#include "AliTRDpadPlane.h"
-#include "AliTRDgeometryFull.h"
+#include "AliTRDgeometry.h"
#include "AliTRDcluster.h"
#include "AliTRDtrack.h"
-#include "AliESD.h"
-
+#include "AliTRDseed.h"
#include "AliTRDcalibDB.h"
#include "AliTRDCommonParam.h"
-
-#include "TTreeStream.h"
-#include "TGraph.h"
#include "AliTRDtracker.h"
-#include "TLinearFitter.h"
-#include "AliRieman.h"
-#include "AliTrackPointArray.h"
-#include "AliAlignObj.h"
-
-//
-
-ClassImp(AliTRDtracker)
-ClassImp(AliTRDseed)
+#include "AliTRDReconstructor.h"
+#include "AliTRDCalibra.h"
+ClassImp(AliTRDtracker)
+const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5;
+const Float_t AliTRDtracker::fgkLabelFraction = 0.8; // ??
+const Double_t AliTRDtracker::fgkMaxChi2 = 12.0;
+const Double_t AliTRDtracker::fgkMaxSnp = 0.95; // Corresponds to tan = 3
+const Double_t AliTRDtracker::fgkMaxStep = 2.0; // Maximal step size in propagation
+//_____________________________________________________________________________
+AliTRDtracker::AliTRDtracker()
+ :AliTracker()
+ ,fHBackfit(0x0)
+ ,fHClSearch(0x0)
+ ,fHRefit(0x0)
+ ,fHX(0x0)
+ ,fHNCl(0x0)
+ ,fHNClTrack(0x0)
+ ,fHMinYPos(0x0)
+ ,fHMinYNeg(0x0)
+ ,fHMinZ(0x0)
+ ,fHMinD(0x0)
+ ,fHDeltaX(0x0)
+ ,fHXCl(0x0)
+ ,fGeom(0)
+ ,fNclusters(0)
+ ,fClusters(0)
+ ,fNseeds(0)
+ ,fSeeds(0)
+ ,fNtracks(0)
+ ,fTracks(0)
+ ,fTimeBinsPerPlane(0)
+ ,fAddTRDseeds(kFALSE)
+ ,fNoTilt(kFALSE)
+ ,fDebugStreamer(0)
+{
+ //
+ // Default constructor
+ //
- 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
-
-
-//
-
+ for (Int_t i = 0; i < kTrackingSectors; i++) {
+ fTrSec[i] = 0;
+ }
+ for (Int_t j = 0; j < 5; j++) {
+ for (Int_t k = 0; k < 18; k++) {
+ fHoles[j][k] = kFALSE;
+ }
+ }
+ InitLogHists();
+}
-//____________________________________________________________________
-AliTRDtracker::AliTRDtracker():AliTracker(),
- fGeom(0),
- fNclusters(0),
- fClusters(0),
- fNseeds(0),
- fSeeds(0),
- fNtracks(0),
- fTracks(0),
- fTimeBinsPerPlane(0),
- fAddTRDseeds(kFALSE),
- fNoTilt(kFALSE)
+//_____________________________________________________________________________
+AliTRDtracker::AliTRDtracker(const AliTRDtracker &t)
+ :AliTracker(t)
+ ,fHBackfit(0x0)
+ ,fHClSearch(0x0)
+ ,fHRefit(0x0)
+ ,fHX(0x0)
+ ,fHNCl(0x0)
+ ,fHNClTrack(0x0)
+ ,fHMinYPos(0x0)
+ ,fHMinYNeg(0x0)
+ ,fHMinZ(0x0)
+ ,fHMinD(0x0)
+ ,fHDeltaX(0x0)
+ ,fHXCl(0x0)
+ ,fGeom(0)
+ ,fNclusters(0)
+ ,fClusters(0)
+ ,fNseeds(0)
+ ,fSeeds(0)
+ ,fNtracks(0)
+ ,fTracks(0)
+ ,fTimeBinsPerPlane(0)
+ ,fAddTRDseeds(kFALSE)
+ ,fNoTilt(kFALSE)
+ ,fDebugStreamer(0)
{
- // Default constructor
+ //
+ // Copy constructor
+ //
- for(Int_t i=0;i<kTrackingSectors;i++) fTrSec[i]=0;
- for(Int_t j=0;j<5;j++)
- for(Int_t k=0;k<18;k++) fHoles[j][k]=kFALSE;
- fDebugStreamer = 0;
-}
-//____________________________________________________________________
-AliTRDtracker::AliTRDtracker(const TFile *geomfile):AliTracker()
+}
+
+//_____________________________________________________________________________
+AliTRDtracker::AliTRDtracker(const TFile *geomfile)
+ :AliTracker()
+ ,fHBackfit(0x0)
+ ,fHClSearch(0x0)
+ ,fHRefit(0x0)
+ ,fHX(0x0)
+ ,fHNCl(0x0)
+ ,fHNClTrack(0x0)
+ ,fHMinYPos(0x0)
+ ,fHMinYNeg(0x0)
+ ,fHMinZ(0x0)
+ ,fHMinD(0x0)
+ ,fHDeltaX(0x0)
+ ,fHXCl(0x0)
+ ,fGeom(0)
+ ,fNclusters(0)
+ ,fClusters(new TObjArray(2000))
+ ,fNseeds(0)
+ ,fSeeds(new TObjArray(2000))
+ ,fNtracks(0)
+ ,fTracks(new TObjArray(1000))
+ ,fTimeBinsPerPlane(0)
+ ,fAddTRDseeds(kFALSE)
+ ,fNoTilt(kFALSE)
+ ,fDebugStreamer(0)
{
//
// Main constructor
//
- fAddTRDseeds = kFALSE;
- fGeom = NULL;
- fNoTilt = kFALSE;
-
- TDirectory *savedir=gDirectory;
- TFile *in=(TFile*)geomfile;
+ TDirectory *savedir = gDirectory;
+ TFile *in = (TFile *) geomfile;
+
if (!in->IsOpen()) {
- printf("AliTRDtracker::AliTRDtracker(): geometry file is not open!\n");
- printf(" FULL TRD geometry and DEFAULT TRD parameter will be used\n");
+ AliWarning("geometry file is not open!\n");
+ AliWarning("FULL TRD geometry and DEFAULT TRD parameter will be used\n");
}
else {
in->cd();
- fGeom = (AliTRDgeometry*) in->Get("TRDgeometry");
+ fGeom = (AliTRDgeometry *) in->Get("TRDgeometry");
}
- if(fGeom) {
- // printf("Found geometry version %d on file \n", fGeom->IsVersion());
- }
- else {
- printf("AliTRDtracker::AliTRDtracker(): can't find TRD geometry!\n");
- fGeom = new AliTRDgeometryFull();
- fGeom->SetPHOShole();
- fGeom->SetRICHhole();
+ if (!fGeom) {
+ AliWarning("Cannot find TRD geometry!\n");
+ fGeom = new AliTRDgeometry();
}
+ fGeom->ReadGeoMatrices();
savedir->cd();
-
- fNclusters = 0;
- fClusters = new TObjArray(2000);
- fNseeds = 0;
- fSeeds = new TObjArray(2000);
- fNtracks = 0;
- fTracks = new TObjArray(1000);
-
- for(Int_t geomS = 0; geomS < kTrackingSectors; geomS++) {
- Int_t trS = CookSectorIndex(geomS);
- fTrSec[trS] = new AliTRDtrackingSector(fGeom, geomS);
- for (Int_t icham=0;icham<AliTRDgeometry::kNcham; icham++){
- fHoles[icham][trS]=fGeom->IsHole(0,icham,geomS);
+ for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) {
+ Int_t trS = CookSectorIndex(geomS);
+ fTrSec[trS] = new AliTRDtrackingSector(fGeom,geomS);
+ for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) {
+ fHoles[icham][trS] = fGeom->IsHole(0,icham,geomS);
}
}
+
AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0);
Float_t tiltAngle = TMath::Abs(padPlane->GetTiltingAngle());
- if(tiltAngle < 0.1) {
+ if (tiltAngle < 0.1) {
fNoTilt = kTRUE;
}
fTimeBinsPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins();
- fDebugStreamer = new TTreeSRedirector("TRDdebug.root");
+ fDebugStreamer = new TTreeSRedirector("TRDdebug.root");
savedir->cd();
+
+ InitLogHists();
+
}
-//___________________________________________________________________
+//_____________________________________________________________________________
AliTRDtracker::~AliTRDtracker()
{
//
fClusters->Delete();
delete fClusters;
}
+
if (fTracks) {
fTracks->Delete();
delete fTracks;
}
+
if (fSeeds) {
fSeeds->Delete();
delete fSeeds;
}
+
delete fGeom;
- for(Int_t geomS = 0; geomS < kTrackingSectors; geomS++) {
+ for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) {
delete fTrSec[geomS];
}
+
if (fDebugStreamer) {
- //fDebugStreamer->Close();
delete fDebugStreamer;
}
-}
-
-//_____________________________________________________________________
+}
-Int_t AliTRDtracker::LocalToGlobalID(Int_t lid){
- //
- // transform internal TRD ID to global detector ID
+//_____________________________________________________________________________
+Int_t AliTRDtracker::LocalToGlobalID(Int_t lid)
+{
//
- Int_t isector = fGeom->GetSector(lid);
- Int_t ichamber= fGeom->GetChamber(lid);
- Int_t iplan = fGeom->GetPlane(lid);
+ // Transform internal TRD ID to global detector ID
//
+
+ 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::kTRD6;
break;
};
- Int_t modId = isector*fGeom->Ncham()+ichamber;
+
+ Int_t modId = isector * fGeom->Ncham() + ichamber;
UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId);
+
return volid;
+
}
-Int_t AliTRDtracker::GlobalToLocalID(Int_t gid){
+//_____________________________________________________________________________
+Int_t AliTRDtracker::GlobalToLocalID(Int_t gid)
+{
//
- // transform global detector ID to local detector ID
+ // Transform global detector ID to local detector ID
//
- Int_t modId=0;
- AliAlignObj::ELayerID layerId = AliAlignObj::VolUIDToLayer(gid, modId);
- Int_t isector = modId/fGeom->Ncham();
- Int_t ichamber = modId%fGeom->Ncham();
- Int_t iLayer = -1;
+
+ Int_t modId = 0;
+ 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;
default:
iLayer =-1;
}
- if (iLayer<0) return -1;
+
+ if (iLayer < 0) {
+ return -1;
+ }
+
Int_t lid = fGeom->GetDetector(iLayer,ichamber,isector);
+
return lid;
-}
+}
-Bool_t AliTRDtracker::Transform(AliTRDcluster * cluster){
- //
- //
- const Double_t kDriftCorrection = 1.01; // drift coeficient correction
- const Double_t kExBcor = 0.001; // ExB coef correction
- const Double_t kTime0Cor = 0.32; // time0 correction
+//_____________________________________________________________________________
+Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster)
+{
//
- // apply alignment and calibration to transform cluster
+ // Transform something ... whatever ...
//
+
+ // Magic constants for geo manager transformation
+ const Double_t kX0shift = 2.52;
+ const Double_t kX0shift5 = 3.05;
+
//
- Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region
- Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.); // drift distance
+ // Apply alignment and calibration to transform cluster
//
- Int_t plane = fGeom->GetPlane(cluster->GetDetector());
- Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane);
- cluster->SetX(xplane- kDriftCorrection*(cluster->GetX()-kTime0Cor));
+ Int_t detector = cluster->GetDetector();
+ Int_t plane = fGeom->GetPlane(cluster->GetDetector());
+ Int_t chamber = fGeom->GetChamber(cluster->GetDetector());
+ Int_t sector = fGeom->GetSector(cluster->GetDetector());
+
+ Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region
+ Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.0); // Drift distance
+
//
// ExB correction
//
Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0);
- Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift);
- //
- cluster->SetY(cluster->GetY() - driftX*(exB+ kExBcor));
+ Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1);
+
+ AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance();
+ AliTRDpadPlane *padPlane = commonParam->GetPadPlane(plane,chamber);
+ Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd());
+ Double_t localPos[3];
+ Double_t localPosTracker[3];
+ localPos[0] = -cluster->GetX();
+ localPos[1] = cluster->GetY() - driftX * exB;
+ localPos[2] = cluster->GetZ() - zshiftIdeal;
+
+ cluster->SetY(cluster->GetY() - driftX*exB);
+ Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane);
+ cluster->SetX(xplane- cluster->GetX());
+
+ TGeoHMatrix *matrix = fGeom->GetCorrectionMatrix(cluster->GetDetector());
+ if (!matrix) {
+ // No matrix found - if somebody used geometry with holes
+ AliError("Invalid Geometry - Default Geometry used\n");
+ return kTRUE;
+ }
+ matrix->LocalToMaster(localPos,localPosTracker);
+
+ if (AliTRDReconstructor::StreamLevel() > 1) {
+ (* fDebugStreamer) << "Transform"
+ << "Cl.=" << cluster
+ << "matrix.=" << matrix
+ << "Detector=" << detector
+ << "Sector=" << sector
+ << "Plane=" << plane
+ << "Chamber=" << chamber
+ << "lx0=" << localPosTracker[0]
+ << "ly0=" << localPosTracker[1]
+ << "lz0=" << localPosTracker[2]
+ << "\n";
+ }
+
+ if (plane == 5) {
+ cluster->SetX(localPosTracker[0]+kX0shift5);
+ }
+ else {
+ cluster->SetX(localPosTracker[0]+kX0shift);
+ }
+
+ cluster->SetY(localPosTracker[1]);
+ cluster->SetZ(localPosTracker[2]);
+
return kTRUE;
+
}
-Bool_t AliTRDtracker::AdjustSector(AliTRDtrack *track) {
+//_____________________________________________________________________________
+// Bool_t AliTRDtracker::Transform(AliTRDcluster *cluster)
+//{
+// //
+// // Is this still needed ????
+// //
+// const Double_t kDriftCorrection = 1.01; // drift coeficient correction
+// const Double_t kTime0Cor = 0.32; // time0 correction
+// //
+// const Double_t kX0shift = 2.52;
+// const Double_t kX0shift5 = 3.05;
+
+// //
+// // apply alignment and calibration to transform cluster
+// //
+// //
+// Int_t detector = cluster->GetDetector();
+// Int_t plane = fGeom->GetPlane(cluster->GetDetector());
+// Int_t chamber = fGeom->GetChamber(cluster->GetDetector());
+// Int_t sector = fGeom->GetSector(cluster->GetDetector());
+
+// Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region
+// Double_t driftX = TMath::Max(cluster->GetX()-dxAmp*0.5,0.); // drift distance
+// //
+// // ExB correction
+// //
+// Double_t vdrift = AliTRDcalibDB::Instance()->GetVdrift(cluster->GetDetector(),0,0);
+// Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(vdrift,-AliTracker::GetBz()*0.1);
+// //
+
+// AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
+// AliTRDpadPlane * padPlane = commonParam->GetPadPlane(plane,chamber);
+// Double_t zshiftIdeal = 0.5*(padPlane->GetRow0()+padPlane->GetRowEnd());
+// Double_t localPos[3], globalPos[3], localPosTracker[3], localPosTracker2[3];
+// localPos[2] = -cluster->GetX();
+// localPos[0] = cluster->GetY() - driftX*exB;
+// localPos[1] = cluster->GetZ() -zshiftIdeal;
+// TGeoHMatrix * matrix = fGeom->GetGeoMatrix(cluster->GetDetector());
+// matrix->LocalToMaster(localPos, globalPos);
+
+// Double_t sectorAngle = 20.*(sector%18)+10;
+// TGeoHMatrix rotSector;
+// rotSector.RotateZ(sectorAngle);
+// rotSector.LocalToMaster(globalPos, localPosTracker);
+// //
+// //
+// TGeoHMatrix matrix2(*matrix);
+// matrix2.MultiplyLeft(&rotSector);
+// matrix2.LocalToMaster(localPos,localPosTracker2);
+// //
+// //
+// //
+// cluster->SetY(cluster->GetY() - driftX*exB);
+// Double_t xplane = (Double_t) AliTRDgeometry::GetTime0(plane);
+// cluster->SetX(xplane- kDriftCorrection*(cluster->GetX()-kTime0Cor));
+// (*fDebugStreamer)<<"Transform"<<
+// "Cl.="<<cluster<<
+// "matrix.="<<matrix<<
+// "matrix2.="<<&matrix2<<
+// "Detector="<<detector<<
+// "Sector="<<sector<<
+// "Plane="<<plane<<
+// "Chamber="<<chamber<<
+// "lx0="<<localPosTracker[0]<<
+// "ly0="<<localPosTracker[1]<<
+// "lz0="<<localPosTracker[2]<<
+// "lx2="<<localPosTracker2[0]<<
+// "ly2="<<localPosTracker2[1]<<
+// "lz2="<<localPosTracker2[2]<<
+// "\n";
+// //
+// if (plane==5)
+// cluster->SetX(localPosTracker[0]+kX0shift5);
+// else
+// cluster->SetX(localPosTracker[0]+kX0shift);
+
+// cluster->SetY(localPosTracker[1]);
+// cluster->SetZ(localPosTracker[2]);
+// return kTRUE;
+// }
+
+//_____________________________________________________________________________
+Bool_t AliTRDtracker::AdjustSector(AliTRDtrack *track)
+{
//
// Rotates the track when necessary
//
Double_t alpha = AliTRDgeometry::GetAlpha();
- Double_t y = track->GetY();
- Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha);
+ Double_t y = track->GetY();
+ Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha);
+ // Is this still needed ????
//Int_t ns = AliTRDgeometry::kNsect;
//Int_t s=Int_t(track->GetAlpha()/alpha)%ns;
- if (y > ymax) {
+ if (y > ymax) {
//s = (s+1) % ns;
- if (!track->Rotate(alpha)) return kFALSE;
- } else if (y <-ymax) {
+ if (!track->Rotate( alpha)) {
+ return kFALSE;
+ }
+ }
+ else if (y < -ymax) {
//s = (s-1+ns) % ns;
- if (!track->Rotate(-alpha)) return kFALSE;
+ if (!track->Rotate(-alpha)) {
+ return kFALSE;
+ }
}
return kTRUE;
-}
+}
-AliTRDcluster * AliTRDtracker::GetCluster(AliTRDtrack * track, Int_t plane, Int_t timebin, UInt_t &index){
+//_____________________________________________________________________________
+AliTRDcluster *AliTRDtracker::GetCluster(AliTRDtrack *track, Int_t plane
+ , Int_t timebin, UInt_t &index)
+{
//
- //try to find cluster in the backup list
+ // Try to find cluster in the backup list
//
- AliTRDcluster * cl =0;
- UInt_t *indexes = track->GetBackupIndexes();
- for (UInt_t i=0;i<kMaxTimeBinIndex;i++){
- if (indexes[i]==0) break;
- AliTRDcluster * cli = (AliTRDcluster*)fClusters->UncheckedAt(indexes[i]);
- if (!cli) break;
- if (cli->GetLocalTimeBin()!=timebin) continue;
+
+ AliTRDcluster *cl =0;
+ Int_t *indexes = track->GetBackupIndexes();
+
+ for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) {
+ if (indexes[i] == 0) {
+ break;
+ }
+ AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]);
+ if (!cli) {
+ break;
+ }
+ if (cli->GetLocalTimeBin() != timebin) {
+ continue;
+ }
Int_t iplane = fGeom->GetPlane(cli->GetDetector());
- if (iplane==plane) {
- cl = cli;
+ if (iplane == plane) {
+ cl = cli;
index = indexes[i];
break;
}
}
+
return cl;
-}
+}
-Int_t AliTRDtracker::GetLastPlane(AliTRDtrack * track){
+//_____________________________________________________________________________
+Int_t AliTRDtracker::GetLastPlane(AliTRDtrack *track)
+{
+ //
+ // Return last updated plane
//
- //return last updated plane
- Int_t lastplane=0;
- UInt_t *indexes = track->GetBackupIndexes();
- for (UInt_t i=0;i<kMaxTimeBinIndex;i++){
- AliTRDcluster * cli = (AliTRDcluster*)fClusters->UncheckedAt(indexes[i]);
- if (!cli) break;
+
+ Int_t lastplane = 0;
+ Int_t *indexes = track->GetBackupIndexes();
+
+ for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) {
+ AliTRDcluster *cli = (AliTRDcluster *) fClusters->UncheckedAt(indexes[i]);
+ if (!cli) {
+ break;
+ }
Int_t iplane = fGeom->GetPlane(cli->GetDetector());
- if (iplane>lastplane) {
+ if (iplane > lastplane) {
lastplane = iplane;
}
}
+
return lastplane;
+
}
-//___________________________________________________________________
-Int_t AliTRDtracker::Clusters2Tracks(AliESD* event)
+
+//_____________________________________________________________________________
+Int_t AliTRDtracker::Clusters2Tracks(AliESD *event)
{
//
// Finds tracks within the TRD. The ESD event is expected to contain seeds
// of the TRD and the ESD event is updated
//
- Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins();
+ Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins();
Float_t foundMin = fgkMinClustersInTrack * timeBins;
- Int_t nseed = 0;
- Int_t found = 0;
- Int_t innerTB = fTrSec[0]->GetInnerTimeBin();
+ Int_t nseed = 0;
+ Int_t found = 0;
+ //Int_t innerTB = fTrSec[0]->GetInnerTimeBin();
Int_t n = event->GetNumberOfTracks();
- for (Int_t i=0; i<n; i++) {
- AliESDtrack* seed=event->GetTrack(i);
- ULong_t status=seed->GetStatus();
- if ( (status & AliESDtrack::kTRDout ) == 0 ) continue;
- if ( (status & AliESDtrack::kTRDin) != 0 ) continue;
+ for (Int_t i = 0; i < n; i++) {
+
+ AliESDtrack *seed = event->GetTrack(i);
+ ULong_t status = seed->GetStatus();
+ if ((status & AliESDtrack::kTRDout) == 0) {
+ continue;
+ }
+ if ((status & AliESDtrack::kTRDin) != 0) {
+ continue;
+ }
nseed++;
- AliTRDtrack* seed2 = new AliTRDtrack(*seed);
+ AliTRDtrack *seed2 = new AliTRDtrack(*seed);
//seed2->ResetCovariance();
- AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha());
- AliTRDtrack &t=*pt;
- FollowProlongation(t, innerTB);
+ AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha());
+ AliTRDtrack &t = *pt;
+ FollowProlongation(t);
if (t.GetNumberOfClusters() >= foundMin) {
UseClusters(&t);
- CookLabel(pt, 1-fgkLabelFraction);
- // t.CookdEdx();
+ CookLabel(pt,1 - fgkLabelFraction);
+ //t.CookdEdx();
}
found++;
-// cout<<found<<'\r';
- Double_t xTPC = 250;
+ Double_t xTPC = 250.0;
if (PropagateToX(t,xTPC,fgkMaxStep)) {
seed->UpdateTrackParams(pt, AliESDtrack::kTRDin);
}
delete seed2;
delete pt;
- }
- cout<<"Number of loaded seeds: "<<nseed<<endl;
- cout<<"Number of found tracks from loaded seeds: "<<found<<endl;
+ }
- // after tracks from loaded seeds are found and the corresponding
- // clusters are used, look for additional seeds from TRD
-
-
- cout<<"Total number of found tracks: "<<found<<endl;
+ AliInfo(Form("Number of loaded seeds: %d",nseed));
+ AliInfo(Form("Number of found tracks from loaded seeds: %d",found));
+ AliInfo(Form("Total number of found tracks: %d",found));
return 0;
+
}
-
-
//_____________________________________________________________________________
-Int_t AliTRDtracker::PropagateBack(AliESD* event) {
+Int_t AliTRDtracker::PropagateBack(AliESD *event)
+{
//
// Gets seeds from ESD event. The seeds are AliTPCtrack's found and
// backpropagated by the TPC tracker. Each seed is first propagated
// by the TPC tracker.
//
- 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; i<n; i++) {
- AliESDtrack* seed=event->GetTrack(i);
+ Int_t found = 0; // number of tracks found
+ Float_t foundMin = 20.0;
+ Int_t n = event->GetNumberOfTracks();
+
+ // Sort tracks
+ Float_t *quality = new Float_t[n];
+ Int_t *index = new Int_t[n];
+ for (Int_t i = 0; i < n; i++) {
+ AliESDtrack *seed = event->GetTrack(i);
Double_t covariance[15];
seed->GetExternalCovariance(covariance);
quality[i] = covariance[0]+covariance[2];
+ //quality[i] = covariance[0];
}
TMath::Sort(n,quality,index,kFALSE);
- //
- for (Int_t i=0; i<n; i++) {
- // AliESDtrack* seed=event->GetTrack(i);
- AliESDtrack* seed=event->GetTrack(index[i]);
- ULong_t status=seed->GetStatus();
- if ( (status & AliESDtrack::kTPCout ) == 0 ) continue;
- if ( (status & AliESDtrack::kTRDout) != 0 ) continue;
+ for (Int_t i = 0; i < n; i++) {
- Int_t lbl = seed->GetLabel();
+ //AliESDtrack *seed = event->GetTrack(i);
+ AliESDtrack *seed = event->GetTrack(index[i]);
+ fHBackfit->Fill(0);
+
+ ULong_t status = seed->GetStatus();
+ if ((status & AliESDtrack::kTPCout) == 0) {
+ fHBackfit->Fill(1);
+ continue;
+ }
+
+ if ((status & AliESDtrack::kTRDout) != 0) {
+ fHBackfit->Fill(2);
+ continue;
+ }
+
+ Int_t lbl = seed->GetLabel();
AliTRDtrack *track = new AliTRDtrack(*seed);
track->SetSeedLabel(lbl);
- seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup); //make backup
+ seed->UpdateTrackParams(track,AliESDtrack::kTRDbackup); // Make backup
fNseeds++;
- Float_t p4 = track->GetC();
- //
+ Float_t p4 = track->GetC();
Int_t expectedClr = FollowBackProlongation(*track);
+
+ fHBackfit->Fill(3);
+ fHX->Fill(track->GetX());
+
+
+ // store the last measurement
/*
- // only debug purpose
- if (track->GetNumberOfClusters()<expectedClr/3){
- AliTRDtrack *track1 = new AliTRDtrack(*seed);
- track1->SetSeedLabel(lbl);
- FollowBackProlongation(*track1);
- AliTRDtrack *track2= new AliTRDtrack(*seed);
- track->SetSeedLabel(lbl);
- FollowBackProlongation(*track2);
- delete track1;
- delete track2;
+ fHNClTrack->Fill(track->GetNumberOfClusters());
+ if (track->GetNumberOfClusters() >= foundMin) {
+
+ fHBackfit->Fill(4);
+ track->CookdEdx();
+ CookdEdxTimBin(*track);
+ CookLabel(track,1 - fgkLabelFraction);
+ if (track->GetBackupTrack()) {
+ //fHBackfit->Fill(5);
+ UseClusters(track->GetBackupTrack());
+ seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup);
+ }
}
*/
- if (TMath::Abs(track->GetC()-p4)/TMath::Abs(p4)<0.2 || TMath::Abs(track->GetPt())>0.8 ) {
+
+ /**/
+ // inter-tracks competition ???
+ if ((TMath::Abs(track->GetC() - p4) / TMath::Abs(p4) < 0.2) ||
+ (TMath::Abs(track->GetPt()) > 0.8)) {
+
+ fHBackfit->Fill(4);
+
//
- //make backup for back propagation
+ // 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);
+ CookLabel(track,1 - fgkLabelFraction);
+ if (track->GetBackupTrack()) {
+ UseClusters(track->GetBackupTrack());
+ }
+
+ // Sign only gold tracks
+ if (track->GetChi2() / track->GetNumberOfClusters() < 4) {
+ if ((seed->GetKinkIndex(0) == 0) &&
+ (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);
+ // Full gold track
+ if (track->GetChi2() / track->GetNumberOfClusters() < 5) {
+ //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup);
+ if (track->GetBackupTrack()) {
+ seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup);
+
+ }
isGold = kTRUE;
+ //fHBackfit->Fill()
}
- if (!isGold && track->GetNCross()==0&&track->GetChi2()/track->GetNumberOfClusters()<7){ //almost gold track
- // seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup);
- if (track->GetBackupTrack()) seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup);
+
+ // Almost gold track
+ if ((!isGold) &&
+ (track->GetNCross() == 0) &&
+ (track->GetChi2() / track->GetNumberOfClusters() < 7)) {
+ //seed->UpdateTrackParams(track, AliESDtrack::kTRDbackup);
+ if (track->GetBackupTrack()) {
+ seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup);
+ }
isGold = kTRUE;
}
- if (!isGold && track->GetBackupTrack()){
- if (track->GetBackupTrack()->GetNumberOfClusters()>foundMin&&
- (track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1))<7){
- seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup);
+
+ if ((!isGold) &&
+ (track->GetBackupTrack())) {
+ if ((track->GetBackupTrack()->GetNumberOfClusters() > foundMin) &&
+ ((track->GetBackupTrack()->GetChi2()/(track->GetBackupTrack()->GetNumberOfClusters()+1)) < 7)) {
+ seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup);
isGold = kTRUE;
}
}
- if (track->StatusForTOF()>0 &&track->fNCross==0 && Float_t(track->fN)/Float_t(track->fNExpected)>0.4){
+
+ if ((track->StatusForTOF() > 0) &&
+ (track->GetNCross() == 0) &&
+ (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) {
//seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup);
}
+
}
}
+ /**/
+
+ /**/
// Debug part of tracking
- TTreeSRedirector& cstream = *fDebugStreamer;
+ TTreeSRedirector &cstream = *fDebugStreamer;
Int_t eventNr = event->GetEventNumber();
- if (track->GetBackupTrack()){
- cstream<<"Tracks"<<
- "EventNr="<<eventNr<<
- "ESD.="<<seed<<
- "trd.="<<track<<
- "trdback.="<<track->GetBackupTrack()<<
- "\n";
- }else{
- cstream<<"Tracks"<<
- "EventNr="<<eventNr<<
- "ESD.="<<seed<<
- "trd.="<<track<<
- "trdback.="<<track<<
- "\n";
+ if (AliTRDReconstructor::StreamLevel() > 0) {
+ if (track->GetBackupTrack()) {
+ cstream << "Tracks"
+ << "EventNr=" << eventNr
+ << "ESD.=" << seed
+ << "trd.=" << track
+ << "trdback.=" << track->GetBackupTrack()
+ << "\n";
+ }
+ else {
+ cstream << "Tracks"
+ << "EventNr=" << eventNr
+ << "ESD.=" << seed
+ << "trd.=" << track
+ << "trdback.=" << track
+ << "\n";
+ }
}
- //
- //Propagation to the TOF (I.Belikov)
- if (track->GetStop()==kFALSE){
-
- Double_t xtof=371.;
- Double_t c2=track->GetC()*xtof - track->GetEta();
- if (TMath::Abs(c2)>=0.99) {
+ /**/
+
+ // Propagation to the TOF (I.Belikov)
+ if (track->GetStop() == kFALSE) {
+ fHBackfit->Fill(5);
+
+ Double_t xtof = 371.0;
+ Double_t xTOF0 = 370.0;
+
+ Double_t c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX());
+ if (TMath::Abs(c2) >= 0.99) {
+
+ fHBackfit->Fill(6);
delete track;
continue;
}
- Double_t xTOF0 = 370. ;
+
PropagateToX(*track,xTOF0,fgkMaxStep);
- //
- //energy losses taken to the account - check one more time
- c2=track->GetC()*xtof - track->GetEta();
- if (TMath::Abs(c2)>=0.99) {
+
+ // Energy losses taken to the account - check one more time
+ c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX());
+ if (TMath::Abs(c2) >= 0.99) {
+
+ fHBackfit->Fill(7);
delete track;
continue;
}
-
- //
- Double_t ymax=xtof*TMath::Tan(0.5*AliTRDgeometry::GetAlpha());
- Double_t y=track->GetYat(xtof);
- if (y > ymax) {
- if (!track->Rotate(AliTRDgeometry::GetAlpha())) {
+
+ //if (!PropagateToX(*track,xTOF0,fgkMaxStep)) {
+ // fHBackfit->Fill(7);
+ //delete track;
+ // continue;
+ //}
+
+ Double_t ymax = xtof * TMath::Tan(0.5 * AliTRDgeometry::GetAlpha());
+ Double_t y;
+ track->GetYAt(xtof,GetBz(),y);
+ if (y > ymax) {
+ if (!track->Rotate( AliTRDgeometry::GetAlpha())) {
+ fHBackfit->Fill(8);
delete track;
continue;
}
- } else if (y <-ymax) {
+ }
+ else if (y < -ymax) {
if (!track->Rotate(-AliTRDgeometry::GetAlpha())) {
+ fHBackfit->Fill(9);
delete track;
continue;
}
}
-
+
if (track->PropagateTo(xtof)) {
- seed->UpdateTrackParams(track, AliESDtrack::kTRDout);
- for (Int_t i=0;i<kNPlane;i++) {
- seed->SetTRDsignals(track->GetPIDsignals(i),i);
- seed->SetTRDTimBin(track->GetPIDTimBin(i),i);
+ seed->UpdateTrackParams(track,AliESDtrack::kTRDout);
+ fHBackfit->Fill(10);
+
+ for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) {
+ for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) {
+ seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j);
+ }
+ seed->SetTRDTimBin(track->GetPIDTimBin(i),i);
}
- // seed->SetTRDtrack(new AliTRDtrack(*track));
- if (track->GetNumberOfClusters()>foundMin) found++;
+ //seed->SetTRDtrack(new AliTRDtrack(*track));
+ if (track->GetNumberOfClusters() > foundMin) {
+ fHBackfit->Fill(11);
+ found++;
+ }
}
- }else{
- if (track->GetNumberOfClusters()>15&&track->GetNumberOfClusters()>0.5*expectedClr){
- seed->UpdateTrackParams(track, AliESDtrack::kTRDout);
+
+ }
+ else {
+
+ fHBackfit->Fill(12);
+
+ if ((track->GetNumberOfClusters() > 15) &&
+ (track->GetNumberOfClusters() > 0.5*expectedClr)) {
+
+ seed->UpdateTrackParams(track,AliESDtrack::kTRDout);
+ fHBackfit->Fill(13);
+
//seed->SetStatus(AliESDtrack::kTRDStop);
- for (Int_t i=0;i<kNPlane;i++) {
- seed->SetTRDsignals(track->GetPIDsignals(i),i);
- seed->SetTRDTimBin(track->GetPIDTimBin(i),i);
+ for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) {
+ for (Int_t j = 0; j <AliESDtrack::kNSlice; j++) {
+ seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j);
+ }
+ seed->SetTRDTimBin(track->GetPIDTimBin(i),i);
}
//seed->SetTRDtrack(new AliTRDtrack(*track));
found++;
}
+
}
+
seed->SetTRDQuality(track->StatusForTOF());
- seed->SetTRDBudget(track->fBudget[0]);
+ seed->SetTRDBudget(track->GetBudget(0));
+ fHBackfit->Fill(14);
delete track;
- //
- //End of propagation to the TOF
- //if (foundClr>foundMin)
- // seed->UpdateTrackParams(track, AliESDtrack::kTRDout);
-
-
}
+
+ AliInfo(Form("Number of seeds: %d",fNseeds));
+ AliInfo(Form("Number of back propagated TRD tracks: %d",found));
- cerr<<"Number of seeds: "<<fNseeds<<endl;
- cerr<<"Number of back propagated TRD tracks: "<<found<<endl;
-
- // MakeSeedsMI(3,5,event); //new seeding
+ // New seeding
+ if (AliTRDReconstructor::SeedingOn()) {
+ MakeSeedsMI(3,5,event);
+ }
+ fSeeds->Clear();
+ fNseeds = 0;
- fSeeds->Clear(); fNseeds=0;
delete [] index;
delete [] quality;
+ SaveLogHists();
+
return 0;
-
}
//_____________________________________________________________________________
-Int_t AliTRDtracker::RefitInward(AliESD* event)
+Int_t AliTRDtracker::RefitInward(AliESD *event)
{
//
// Refits tracks within the TRD. The ESD event is expected to contain seeds
// Origin: Thomas KUHR (Thomas.Kuhr@cern.ch)
//
- Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins();
+ Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins();
Float_t foundMin = fgkMinClustersInTrack * timeBins;
- Int_t nseed = 0;
- Int_t found = 0;
- Int_t innerTB = fTrSec[0]->GetInnerTimeBin();
+ Int_t nseed = 0;
+ Int_t found = 0;
+ //Int_t innerTB = fTrSec[0]->GetInnerTimeBin();
AliTRDtrack seed2;
-
+
Int_t n = event->GetNumberOfTracks();
- for (Int_t i=0; i<n; i++) {
- AliESDtrack* seed=event->GetTrack(i);
- new(&seed2) AliTRDtrack(*seed);
- if (seed2.GetX()<270){
- seed->UpdateTrackParams(&seed2, AliESDtrack::kTRDbackup); // backup TPC track - only update
+ for (Int_t i = 0; i < n; i++) {
+
+ AliESDtrack *seed = event->GetTrack(i);
+ new (&seed2) AliTRDtrack(*seed);
+ fHRefit->Fill(0);
+
+ if (seed2.GetX() < 270.0) {
+ seed->UpdateTrackParams(&seed2,AliESDtrack::kTRDbackup); // Backup TPC track - only update
+ fHRefit->Fill(1);
continue;
}
- ULong_t status=seed->GetStatus();
- if ( (status & AliESDtrack::kTRDout ) == 0 ) {
+ ULong_t status = seed->GetStatus();
+ if ((status & AliESDtrack::kTRDout) == 0) {
+ fHRefit->Fill(2);
continue;
}
- if ( (status & AliESDtrack::kTRDin) != 0 ) {
+ if ((status & AliESDtrack::kTRDin) != 0) {
+ fHRefit->Fill(3);
continue;
}
- nseed++;
-// if (1/seed2.Get1Pt()>1.5&& seed2.GetX()>260.) {
-// Double_t oldx = seed2.GetX();
-// seed2.PropagateTo(500.);
-// seed2.ResetCovariance(1.);
-// seed2.PropagateTo(oldx);
-// }
-// else{
-// seed2.ResetCovariance(5.);
-// }
+
+ nseed++;
+ fHRefit->Fill(4);
+
+ seed2.ResetCovariance(50.0);
AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha());
- UInt_t * indexes2 = seed2.GetIndexes();
- for (Int_t i=0;i<kNPlane;i++) {
- pt->SetPIDsignals(seed2.GetPIDsignals(i),i);
+ Int_t *indexes2 = seed2.GetIndexes();
+ for (Int_t i = 0; i < AliESDtrack::kNPlane;i++) {
+ for (Int_t j = 0; j < AliESDtrack::kNSlice;j++) {
+ pt->SetPIDsignals(seed2.GetPIDsignals(i,j),i,j);
+ }
pt->SetPIDTimBin(seed2.GetPIDTimBin(i),i);
}
- UInt_t * indexes3 = pt->GetBackupIndexes();
- for (Int_t i=0;i<200;i++) {
- if (indexes2[i]==0) break;
+ Int_t *indexes3 = pt->GetBackupIndexes();
+ for (Int_t i = 0; i < 200;i++) {
+ if (indexes2[i] == 0) {
+ break;
+ }
indexes3[i] = indexes2[i];
- }
+ }
+
//AliTRDtrack *pt = seed2;
- AliTRDtrack &t=*pt;
- FollowProlongation(t, innerTB);
+ AliTRDtrack &t = *pt;
+ FollowProlongation(t);
if (t.GetNumberOfClusters() >= foundMin) {
- // UseClusters(&t);
+ //UseClusters(&t);
//CookLabel(pt, 1-fgkLabelFraction);
t.CookdEdx();
CookdEdxTimBin(t);
}
found++;
-// cout<<found<<'\r';
- Double_t xTPC = 250;
- if(PropagateToX(t,xTPC,fgkMaxStep)) {
- seed->UpdateTrackParams(pt, AliESDtrack::kTRDrefit);
- for (Int_t i=0;i<kNPlane;i++) {
- seed->SetTRDsignals(pt->GetPIDsignals(i),i);
+
+ Double_t xTPC = 250.0;
+ if (PropagateToX(t,xTPC,fgkMaxStep)) {
+
+ seed->UpdateTrackParams(pt,AliESDtrack::kTRDrefit);
+ fHRefit->Fill(5);
+
+ for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) {
+ for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) {
+ seed->SetTRDsignals(pt->GetPIDsignals(i,j),i,j);
+ }
seed->SetTRDTimBin(pt->GetPIDTimBin(i),i);
}
- }else{
- //if not prolongation to TPC - propagate without update
- AliTRDtrack* seed2 = new AliTRDtrack(*seed);
- seed2->ResetCovariance(5.);
- AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha());
+ }
+ else {
+ // If not prolongation to TPC - propagate without update
+ fHRefit->Fill(5);
+ AliTRDtrack *seed2 = new AliTRDtrack(*seed);
+ seed2->ResetCovariance(5.0);
+ AliTRDtrack *pt2 = new AliTRDtrack(*seed2,seed2->GetAlpha());
delete seed2;
if (PropagateToX(*pt2,xTPC,fgkMaxStep)) {
- //pt2->CookdEdx(0.,1.);
- pt2->CookdEdx( ); // Modification by PS
+ pt2->CookdEdx( );
CookdEdxTimBin(*pt2);
- seed->UpdateTrackParams(pt2, AliESDtrack::kTRDrefit);
- for (Int_t i=0;i<kNPlane;i++) {
- seed->SetTRDsignals(pt2->GetPIDsignals(i),i);
+ seed->UpdateTrackParams(pt2,AliESDtrack::kTRDrefit);
+ fHRefit->Fill(6);
+
+ for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) {
+ for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) {
+ seed->SetTRDsignals(pt2->GetPIDsignals(i,j),i,j);
+ }
seed->SetTRDTimBin(pt2->GetPIDTimBin(i),i);
}
}
delete pt2;
- }
+ }
+
delete pt;
+
}
- cout<<"Number of loaded seeds: "<<nseed<<endl;
- cout<<"Number of found tracks from loaded seeds: "<<found<<endl;
+ AliInfo(Form("Number of loaded seeds: %d",nseed));
+ AliInfo(Form("Number of found tracks from loaded seeds: %d",found));
+ SaveLogHists();
return 0;
-
}
-
-
-
-//---------------------------------------------------------------------------
-Int_t AliTRDtracker::FollowProlongation(AliTRDtrack& t, Int_t rf)
+//_____________________________________________________________________________
+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;
- //
//
- Double_t alpha=AliTRDgeometry::GetAlpha();
- Double_t tanmax = TMath::Tan(0.5*alpha);
-
- for (Int_t nr=fTrSec[0]->GetLayerNumber(t.GetX()); nr>rf; nr--) {
- //
- //
- Int_t currentplane = fTrSec[0]->GetLayer(nr)->GetPlane();
- Double_t currentx = fTrSec[0]->GetLayer(nr)->GetX();
- if (currentx < -fgkMaxStep +t.GetX()){
- //propagate closer to chamber - safety space fgkMaxStep
- if (!PropagateToX(t, currentx+fgkMaxStep, fgkMaxStep)) break;
- }
- if (!AdjustSector(&t)) break;
- Double_t xyz0[3],xyz1[3],param[7],x,y,z;
- t.GetGlobalXYZ(xyz0[0],xyz0[1],xyz0[2]); //starting global position
- //
+
+ 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 and update track in active layers
+ // Propagate track close to the plane if neccessary
//
- Int_t nr0 = nr; //first active layer
- if (nr >rf && (fTrSec[0]->GetLayer(nr)->IsSensitive())){
- //
- // get all time bins at given plane
- //
- while (nr >rf && ((fTrSec[0]->GetLayer(nr)->IsSensitive())) && fTrSec[0]->GetLayer(nr)->GetPlane() == currentplane){
- x = fTrSec[0]->GetLayer(nr)->GetX();
- nr--;
- if (!t.GetProlongation(x,y,z)) break;
- if (TMath::Abs(y)>x*tanmax){
- nr--;
- break;
- }
+ 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;
}
- nr++;
- x = fTrSec[0]->GetLayer(nr)->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;
- // end global position
- AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param);
- rho = param[0];
- radLength = param[1]; // get mean propagation parameters
}
- //
- // propagate and update
- if (nr0-nr< fTimeBinsPerPlane/2 ){
- // short tracklet - do not update - edge effect
- continue;
+
+ if (!AdjustSector(&t)) {
+ break;
}
- sector = t.GetSector();
+
//
- //
- for (Int_t ilayer=nr0;ilayer>=nr;ilayer--) {
- expectedNumberOfClusters++;
- t.fNExpected++;
- if (t.fX>345) t.fNExpectedLast++;
- AliTRDpropagationLayer& timeBin=*(fTrSec[sector]->GetLayer(ilayer));
- AliTRDcluster *cl=0;
- UInt_t index=0;
- Double_t maxChi2=fgkMaxChi2;
- //dx = (fTrSec[sector]->GetLayer(ilayer+1))->GetX()-timeBin.GetX();
- x = timeBin.GetX();
- // t.PropagateTo(x,radLength,rho);
- 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;
+ // Get material budget
+ //
+ Double_t xyz0[3];
+ Double_t xyz1[3];
+ Double_t param[7];
+ Double_t x;
+ Double_t y;
+ Double_t z;
+
+ // Starting global position
+ t.GetXYZ(xyz0);
+ // End global position
+ x = fTrSec[0]->GetLayer(row0)->GetX();
+ if (!t.GetProlongation(x,y,z)) {
+ break;
+ }
+ xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha());
+ xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha());
+ xyz1[2] = z;
+ AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param);
+ rho = param[0];
+ radLength = param[1]; // Get mean propagation parameters
+
+ //
+ // Propagate and update
+ //
+ sector = t.GetSector();
+ //for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) {
+ for (Int_t itime = 0 ; itime < GetTimeBinsPerPlane(); itime++) {
+
+ Int_t ilayer = GetGlobalTimeBin(0,iplane,itime);
+ expectedNumberOfClusters++;
+ t.SetNExpected(t.GetNExpected() + 1);
+ if (t.GetX() > 345.0) {
+ t.SetNExpectedLast(t.GetNExpectedLast() + 1);
+ }
+ AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer));
+ AliTRDcluster *cl = 0;
+ UInt_t index = 0;
+ Double_t maxChi2 = fgkMaxChi2;
+ x = timeBin.GetX();
+
+ if (timeBin) {
+
+ AliTRDcluster *cl0 = timeBin[0];
+ if (!cl0) {
+ // No clusters in given time bin
+ continue;
+ }
+
+ Int_t plane = fGeom->GetPlane(cl0->GetDetector());
+ if (plane > lastplane) {
+ continue;
+ }
+
Int_t timebin = cl0->GetLocalTimeBin();
- AliTRDcluster * cl2= GetCluster(&t,plane, timebin,index);
- //
+ AliTRDcluster *cl2 = GetCluster(&t,plane,timebin,index);
+
if (cl2) {
- cl =cl2;
- Double_t h01 = GetTiltFactor(cl);
- maxChi2=t.GetPredictedChi2(cl,h01);
- }
-
+
+ cl = cl2;
+ //Double_t h01 = GetTiltFactor(cl); //I.B's fix
+ //maxChi2=t.GetPredictedChi2(cl,h01);
+
+ }
if (cl) {
- // if (cl->GetNPads()<5)
+
+ //if (cl->GetNPads()<5)
Double_t dxsample = timeBin.GetdX();
t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample));
- Double_t h01 = GetTiltFactor(cl);
- Int_t det = cl->GetDetector();
- Int_t plane = fGeom->GetPlane(det);
- if (t.fX>345){
- t.fNLast++;
- t.fChi2Last+=maxChi2;
+ Double_t h01 = GetTiltFactor(cl);
+ Int_t det = cl->GetDetector();
+ Int_t plane = fGeom->GetPlane(det);
+ if (t.GetX() > 345.0) {
+ t.SetNLast(t.GetNLast() + 1);
+ t.SetChi2Last(t.GetChi2Last() + maxChi2);
}
+
Double_t xcluster = cl->GetX();
t.PropagateTo(xcluster,radLength,rho);
- if(!t.UpdateMI(cl,maxChi2,index,h01,plane)) {
- if(!t.Update(cl,maxChi2,index,h01)) {
+
+ if (!AdjustSector(&t)) {
+ break; //I.B's fix
+ }
+ maxChi2 = t.GetPredictedChi2(cl,h01);
+
+ if (maxChi2<1e+10)
+ if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) {
+ // ????
}
- }
+
}
+
}
- }
- }
- return expectedNumberOfClusters;
-
-
-}
+ }
+ }
+
+ return expectedNumberOfClusters;
+}
-//___________________________________________________________________
-Int_t AliTRDtracker::FollowBackProlongation(AliTRDtrack& t)
+//_____________________________________________________________________________
+Int_t AliTRDtracker::FollowBackProlongation(AliTRDtrack &t)
{
-
+ //
// Starting from current radial position of track <t> this function
// extrapolates the track up to outer timebin and in the sensitive
// layers confirms prolongation if a close cluster is found.
// Returns the number of clusters expected to be found in sensitive layers
// Use GEO manager for material Description
+ //
+ // return number of assigned clusters ?
+ //
- Int_t sector;
- Int_t clusters[1000];
- for (Int_t i=0;i<1000;i++) clusters[i]=-1;
- Int_t outerTB = fTrSec[0]->GetOuterTimeBin();
- Double_t radLength = 0.0;
- Double_t rho = 0.0;
- Double_t x;
- Int_t expectedNumberOfClusters = 0;
- x = t.GetX();
- Double_t alpha=AliTRDgeometry::GetAlpha(); // note: change in meaning
- Double_t tanmax = TMath::Tan(0.5*alpha);
- Int_t nr;
- Float_t ratio0=0;
+ Int_t sector;
+ Int_t clusters[1000];
+ Double_t radLength = 0.0;
+ Double_t rho = 0.0;
+ Int_t expectedNumberOfClusters = 0;
+ Float_t ratio0 = 0.0;
AliTRDtracklet tracklet;
- //
- //
-
- for (nr=fTrSec[0]->GetLayerNumber(t.GetX()); nr<outerTB; nr++) {
- //
- // propagate to current X
- //
- Int_t currentplane = fTrSec[0]->GetLayer(nr)->GetPlane();
- Double_t currentx = fTrSec[0]->GetLayer(nr)->GetX();
- if (currentx > fgkMaxStep +t.GetX()){
- //propagate closter to chamber
- if (!PropagateToX(t, currentx-fgkMaxStep, fgkMaxStep)) break;
- }
- if (!AdjustSector(&t)) break;
- if (TMath::Abs(t.GetSnp())>fgkMaxSnp) break;
- Double_t xyz0[3],xyz1[3],param[7],x,y,z;
- t.GetGlobalXYZ(xyz0[0],xyz0[1],xyz0[2]); //starting global position
- //
+
+ // Calibration fill 2D
+ AliTRDCalibra *calibra = AliTRDCalibra::Instance();
+ if (!calibra) {
+ AliInfo("Could not get Calibra instance\n");
+ }
+ if (calibra->GetMITracking()) {
+ calibra->ResetTrack();
+ }
+
+ for (Int_t i = 0; i < 1000; i++) {
+ clusters[i] = -1;
+ }
+
+ for (Int_t iplane = 0; iplane < AliESDtrack::kNPlane; iplane++) {
+
+ int hb = iplane * 10;
+ fHClSearch->Fill(hb);
+
+ Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1);
+ Int_t rowlast = GetGlobalTimeBin(0,iplane,0);
+ Double_t currentx = fTrSec[0]->GetLayer(row0)->GetX();
+ if (currentx < t.GetX()) {
+ fHClSearch->Fill(hb+1);
+ continue;
+ }
+
//
+ // Propagate closer to chamber if neccessary
//
- Int_t nr0 = nr;
- if (nr <outerTB && (fTrSec[0]->GetLayer(nr)->IsSensitive())){
- //
- // get all time bins at given plane
- //
- while (nr <outerTB && fTrSec[0]->GetLayer(nr)->GetPlane() == currentplane){
- x = fTrSec[0]->GetLayer(nr)->GetX();
- nr++;
- if (!t.GetProlongation(x,y,z)) break;
- if (TMath::Abs(y)>(x*tanmax)){
- nr++;
- break;
- }
+ if (currentx > (fgkMaxStep + t.GetX())) {
+ if (!PropagateToX(t,currentx-fgkMaxStep,fgkMaxStep)) {
+ fHClSearch->Fill(hb+2);
+ break;
}
- nr--;
- //
- //
- //
- x = fTrSec[0]->GetLayer(nr)->GetX();
- if (!t.GetProlongation(x,y,z)) break;
- // minimal mean and maximal budget scan
- Float_t minbudget =10000;
- Float_t meanbudget =0;
- Float_t maxbudget =-1;
- // Float_t normbudget =0;
- // for (Int_t idy=-1;idy<=1;idy++)
- // for (Int_t idz=-1;idz<=1;idz++){
- for (Int_t idy=0;idy<1;idy++)
- for (Int_t idz=0;idz<1;idz++){
- Double_t y2 = y+idy*TMath::Min(TMath::Sqrt(t.GetSigmaY2()),1.);
- Double_t z2 = z+idz*TMath::Min(TMath::Sqrt(t.GetSigmaZ2()),1.);
-
- xyz1[0] = x*TMath::Cos(t.GetAlpha())-y2*TMath::Sin(t.GetAlpha());
- xyz1[1] = +x*TMath::Sin(t.GetAlpha())+y2*TMath::Cos(t.GetAlpha());
- xyz1[2] = z2;
- AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param);
- Float_t budget = param[0]*param[4];
- meanbudget+=budget;
- if (budget<minbudget) minbudget=budget;
- if (budget>maxbudget) maxbudget=budget;
- }
- t.fBudget[0]+=minbudget;
- t.fBudget[1]+=meanbudget/9.;
- t.fBudget[2]+=minbudget;
- //
- 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;
- // end global position
- AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param);
- rho = param[0];
- radLength = param[1]; // get mean propagation parameters
}
+ if (!AdjustSector(&t)) {
+ fHClSearch->Fill(hb+3);
+ break;
+ }
+ if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) {
+ fHClSearch->Fill(hb+4);
+ break;
+ }
+
//
+ // Get material budget inside of chamber
//
- //
- if (nr-nr0< fTimeBinsPerPlane/2){
- // short tracklet - do not update - edge effect
- continue;
+ Double_t xyz0[3];
+ Double_t xyz1[3];
+ Double_t param[7];
+ Double_t x;
+ Double_t y;
+ Double_t z;
+ // Starting global position
+ t.GetXYZ(xyz0);
+ // End global position
+ x = fTrSec[0]->GetLayer(rowlast)->GetX();
+ if (!t.GetProlongation(x,y,z)) {
+ fHClSearch->Fill(hb+5);
+ break;
}
+ xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha());
+ xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha());
+ xyz1[2] = z;
+ AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param);
+ rho = param[0];
+ radLength = param[1]; // Get mean propagation parameters
+
//
+ // Find clusters
//
sector = t.GetSector();
- Float_t ncl = FindClusters(sector,nr0,nr,&t,clusters,tracklet);
- if (tracklet.GetN()-2*tracklet.GetNCross()<10) continue;
+ Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet);
+ fHNCl->Fill(tracklet.GetN());
+
+ if (tracklet.GetN() < GetTimeBinsPerPlane()/3) {
+ fHClSearch->Fill(hb+6);
+ continue;
+ }
+
//
+ // Propagate and update track
//
- for (Int_t ilayer=nr0;ilayer<=nr;ilayer++) {
+ for (Int_t itime = GetTimeBinsPerPlane()-1; itime >= 0; itime--) {
+
+ Int_t ilayer = GetGlobalTimeBin(0, iplane,itime);
expectedNumberOfClusters++;
- t.fNExpected++;
- if (t.fX>345) t.fNExpectedLast++;
- AliTRDpropagationLayer& timeBin=*(fTrSec[sector]->GetLayer(ilayer));
- AliTRDcluster *cl=0;
- UInt_t index=0;
- Double_t maxChi2=fgkMaxChi2;
+ t.SetNExpected(t.GetNExpected() + 1);
+ if (t.GetX() > 345.0) {
+ t.SetNExpectedLast(t.GetNExpectedLast() + 1);
+ }
+ AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(ilayer));
+ AliTRDcluster *cl = 0;
+ UInt_t index = 0;
+ Double_t maxChi2 = fgkMaxChi2;
x = timeBin.GetX();
- //
+
if (timeBin) {
- if (clusters[ilayer]>0) {
+
+ if (clusters[ilayer] > 0) {
index = clusters[ilayer];
- cl = (AliTRDcluster*)GetCluster(index);
- Double_t h01 = GetTiltFactor(cl);
- maxChi2=t.GetPredictedChi2(cl,h01);
+ cl = (AliTRDcluster *)GetCluster(index);
+ //Double_t h01 = GetTiltFactor(cl); // I.B's fix
+ //maxChi2=t.GetPredictedChi2(cl,h01); //
}
if (cl) {
- // if (cl->GetNPads()<5)
+
+ //if (cl->GetNPads() < 5)
Double_t dxsample = timeBin.GetdX();
t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample));
- Double_t h01 = GetTiltFactor(cl);
- Int_t det = cl->GetDetector();
- Int_t plane = fGeom->GetPlane(det);
- if (t.fX>345){
- t.fNLast++;
- t.fChi2Last+=maxChi2;
+ Double_t h01 = GetTiltFactor(cl);
+ Int_t det = cl->GetDetector();
+ Int_t plane = fGeom->GetPlane(det);
+ if (t.GetX() > 345.0) {
+ t.SetNLast(t.GetNLast() + 1);
+ t.SetChi2Last(t.GetChi2Last() + maxChi2);
}
Double_t xcluster = cl->GetX();
t.PropagateTo(xcluster,radLength,rho);
- if(!t.UpdateMI(cl,maxChi2,index,h01,plane)) {
- if(!t.Update(cl,maxChi2,index,h01)) {
+ maxChi2 = t.GetPredictedChi2(cl,h01);
+
+ if (maxChi2<1e+10)
+ if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) {
+ if (!t.Update(cl,maxChi2,index,h01)) {
+ // ????
+ }
+ }
+
+ if (calibra->GetMITracking()) {
+ calibra->UpdateHistograms(cl,&t);
+ }
+
+ // Reset material budget if 2 consecutive gold
+ if (plane > 0) {
+ if ((t.GetTracklets(plane).GetN() + t.GetTracklets(plane-1).GetN()) > 20) {
+ t.SetBudget(2,0.0);
}
- }
- //
-
-// if (cl->GetLocalTimeBin()==1&&t.fN>20 && float(t.fChi2)/float(t.fN)<5){
-// Float_t ratio1 = Float_t(t.fN)/Float_t(t.fNExpected);
-// if (tracklet.GetChi2()<18&&ratio0>0.8&&ratio1>0.6 &&ratio0+ratio1>1.5 && t.GetNCross()==0 && TMath::Abs(t.GetSnp())<0.85){
-// t.MakeBackupTrack(); // make backup of the track until is gold
-// }
-// }
- // reset material budget if 2 consecutive gold
- if (plane>0)
- if (t.fTracklets[plane].GetN()+t.fTracklets[plane-1].GetN()>20){
- t.fBudget[2] = 0;
- }
- }
+ }
+
+ }
+
}
+
}
- ratio0 = ncl/Float_t(fTimeBinsPerPlane);
- Float_t ratio1 = Float_t(t.fN+1)/Float_t(t.fNExpected+1.);
- if (tracklet.GetChi2()<18.&&ratio0>0.8 && ratio1>0.6 && ratio0+ratio1>1.5 && t.GetNCross()==0 && TMath::Abs(t.GetSnp())<0.85&&t.fN>20){
- t.MakeBackupTrack(); // make backup of the track until is gold
+
+ ratio0 = ncl / Float_t(fTimeBinsPerPlane);
+ Float_t ratio1 = Float_t(t.GetNumberOfClusters()+1) / Float_t(t.GetNExpected()+1);
+ if ((tracklet.GetChi2() < 18.0) &&
+ (ratio0 > 0.8) &&
+ (ratio1 > 0.6) &&
+ (ratio0+ratio1 > 1.5) &&
+ (t.GetNCross() == 0) &&
+ (TMath::Abs(t.GetSnp()) < 0.85) &&
+ (t.GetNumberOfClusters() > 20)){
+ //if (ratio0 > 0.8) {
+ t.MakeBackupTrack(); // Make backup of the track until is gold
}
-
+
}
- //
- if (nr<outerTB)
- t.SetStop(kTRUE);
- else
- t.SetStop(kFALSE);
+
return expectedNumberOfClusters;
}
-
-
-
-
-
-Int_t AliTRDtracker::PropagateToX(AliTRDtrack& t, Double_t xToGo, Double_t maxStep)
+//_____________________________________________________________________________
+Int_t AliTRDtracker::PropagateToX(AliTRDtrack &t, Double_t xToGo, Double_t maxStep)
{
+ //
// Starting from current radial position of track <t> this function
// extrapolates the track up to radial position <xToGo>.
// Returns 1 if track reaches the plane, and 0 otherwise
- const Double_t kEpsilon = 0.00001;
- // Double_t tanmax = TMath::Tan(0.5*AliTRDgeometry::GetAlpha());
- Double_t xpos = t.GetX();
- Double_t dir = (xpos<xToGo) ? 1.:-1.;
//
- while ( (xToGo-xpos)*dir > 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;
- //
+
+ const Double_t kEpsilon = 0.00001;
+ //Double_t tanmax = TMath::Tan(0.5*AliTRDgeometry::GetAlpha());
+ Double_t xpos = t.GetX();
+ Double_t dir = (xpos<xToGo) ? 1.0 : -1.0;
+
+ while (((xToGo-xpos)*dir) > kEpsilon) {
+
+ Double_t step = dir * TMath::Min(TMath::Abs(xToGo-xpos),maxStep);
+
+ Double_t xyz0[3];
+ Double_t xyz1[3];
+ Double_t param[7];
+ Double_t x;
+ Double_t y;
+ Double_t z;
+ // Starting global position
+ t.GetXYZ(xyz0);
+ x = xpos + step;
+
+ 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;
+ if (!t.PropagateTo(x,param[1],param[0])) {
+ return 0;
+ }
AdjustSector(&t);
xpos = t.GetX();
+
}
+
return 1;
}
-
-
//_____________________________________________________________________________
Int_t AliTRDtracker::LoadClusters(TTree *cTree)
{
+ //
// Fills clusters into TRD tracking_sectors
// Note that the numbering scheme for the TRD tracking_sectors
// differs from that of TRD sectors
- cout<<"\n Read Sectors clusters"<<endl;
+ //
+
if (ReadClusters(fClusters,cTree)) {
- Error("LoadClusters","Problem with reading the clusters !");
+ AliError("Problem with reading the clusters !");
return 1;
}
- Int_t ncl=fClusters->GetEntriesFast();
- fNclusters=ncl;
- cout<<"\n LoadSectors: sorting "<<ncl<<" clusters"<<endl;
+ Int_t ncl = fClusters->GetEntriesFast();
+ fNclusters = ncl;
+ AliInfo(Form("Sorting %d clusters",ncl));
UInt_t index;
- for (Int_t ichamber=0;ichamber<5;ichamber++)
- for (Int_t isector=0;isector<18;isector++){
- fHoles[ichamber][isector]=kTRUE;
+ for (Int_t ichamber = 0; ichamber < 5; ichamber++) {
+ for (Int_t isector = 0; isector < 18; isector++) {
+ fHoles[ichamber][isector] = kTRUE;
}
-
+ }
while (ncl--) {
-// printf("\r %d left ",ncl);
- AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(ncl);
- Int_t detector=c->GetDetector();
- Int_t localTimeBin=c->GetLocalTimeBin();
- Int_t sector=fGeom->GetSector(detector);
- Int_t plane=fGeom->GetPlane(detector);
-
+
+ AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(ncl);
+ Int_t detector = c->GetDetector();
+ Int_t localTimeBin = c->GetLocalTimeBin();
+ Int_t sector = fGeom->GetSector(detector);
+ Int_t plane = fGeom->GetPlane(detector);
Int_t trackingSector = CookSectorIndex(sector);
- if (c->GetLabel(0)>0){
+
+ //if (c->GetLabel(0) > 0) {
+ if (c->GetQ() > 10) {
Int_t chamber = fGeom->GetChamber(detector);
- fHoles[chamber][trackingSector]=kFALSE;
+ fHoles[chamber][trackingSector] = kFALSE;
}
Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin);
- if(gtb < 0) continue;
+ if (gtb < 0) {
+ continue;
+ }
Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb);
- index=ncl;
- //
- // apply pos correction
- Transform(c);
+ index = ncl;
+
+ // Apply pos correction
+ Transform(c);
+ fHXCl->Fill(c->GetX());
+
+ fTrSec[trackingSector]->GetLayer(layer)->SetX(c->GetX());
fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index);
- }
+ }
+
return 0;
+
}
//_____________________________________________________________________________
// Clears the arrays of clusters and tracks. Resets sectors and timebins
//
- Int_t i, nentr;
+ Int_t i;
+ Int_t nentr;
nentr = fClusters->GetEntriesFast();
- for (i = 0; i < nentr; i++) delete fClusters->RemoveAt(i);
+ for (i = 0; i < nentr; i++) {
+ delete fClusters->RemoveAt(i);
+ }
fNclusters = 0;
nentr = fSeeds->GetEntriesFast();
- for (i = 0; i < nentr; i++) delete fSeeds->RemoveAt(i);
+ for (i = 0; i < nentr; i++) {
+ delete fSeeds->RemoveAt(i);
+ }
nentr = fTracks->GetEntriesFast();
- for (i = 0; i < nentr; i++) delete fTracks->RemoveAt(i);
+ for (i = 0; i < nentr; i++) {
+ delete fTracks->RemoveAt(i);
+ }
Int_t nsec = AliTRDgeometry::kNsect;
-
for (i = 0; i < nsec; i++) {
for(Int_t pl = 0; pl < fTrSec[i]->GetNumberOfLayers(); pl++) {
fTrSec[i]->GetLayer(pl)->Clear();
}
-//__________________________________________________________________________
-void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESD * esd)
+//_____________________________________________________________________________
+void AliTRDtracker::MakeSeedsMI(Int_t /*inner*/, Int_t /*outer*/, AliESD *esd)
{
//
// Creates seeds using clusters between position inner plane and outer plane
//
- const Double_t maxtheta = 1;
- const Double_t maxphi = 2.0;
- //
- const Double_t kRoad0y = 6; // road for middle cluster
- const Double_t kRoad0z = 8.5; // road for middle cluster
- //
- const Double_t kRoad1y = 2; // road in y for seeded cluster
- const Double_t kRoad1z = 20; // road in z for seeded cluster
- //
- const Double_t kRoad2y = 3; // road in y for extrapolated cluster
- const Double_t kRoad2z = 20; // road in z for extrapolated cluster
- const Int_t maxseed = 3000;
- Int_t maxSec=AliTRDgeometry::kNsect;
- //
- // linear fitters in planes
- TLinearFitter fitterTC(2,"hyp2"); // fitting with tilting pads - kz fixed - kz= Z/x, + vertex const
- TLinearFitter fitterT2(4,"hyp4"); // fitting with tilting pads - kz not fixed
+ const Double_t kMaxTheta = 1.0;
+ const Double_t kMaxPhi = 2.0;
+
+ const Double_t kRoad0y = 6.0; // Road for middle cluster
+ const Double_t kRoad0z = 8.5; // Road for middle cluster
+
+ const Double_t kRoad1y = 2.0; // Road in y for seeded cluster
+ const Double_t kRoad1z = 20.0; // Road in z for seeded cluster
+
+ const Double_t kRoad2y = 3.0; // Road in y for extrapolated cluster
+ const Double_t kRoad2z = 20.0; // Road in z for extrapolated cluster
+ const Int_t kMaxSeed = 3000;
+
+ Int_t maxSec = AliTRDgeometry::kNsect;
+
+ // Linear fitters in planes
+ TLinearFitter fitterTC(2,"hyp2"); // Fitting with tilting pads - kz fixed - kz= Z/x, + vertex const
+ TLinearFitter fitterT2(4,"hyp4"); // Fitting with tilting pads - kz not fixed
fitterTC.StoreData(kTRUE);
fitterT2.StoreData(kTRUE);
- AliRieman rieman(1000); // rieman fitter
- AliRieman rieman2(1000); // rieman fitter
- //
- // find the maximal and minimal layer for the planes
- //
+ AliRieman rieman(1000); // Rieman fitter
+ AliRieman rieman2(1000); // Rieman fitter
+
+ // Find the maximal and minimal layer for the planes
Int_t layers[6][2];
- AliTRDpropagationLayer* reflayers[6];
- for (Int_t i=0;i<6;i++){layers[i][0]=10000; layers[i][1]=0;}
- for (Int_t ns=0;ns<maxSec;ns++){
- for (Int_t ilayer=0;ilayer<fTrSec[ns]->GetNumberOfLayers();ilayer++){
- AliTRDpropagationLayer& layer=*(fTrSec[ns]->GetLayer(ilayer));
- if (layer==0) continue;
+ AliTRDpropagationLayer *reflayers[6];
+ for (Int_t i = 0; i < 6; i++) {
+ layers[i][0] = 10000;
+ layers[i][1] = 0;
+ }
+ for (Int_t ns = 0; ns < maxSec; ns++) {
+ for (Int_t ilayer = 0; ilayer < fTrSec[ns]->GetNumberOfLayers(); ilayer++) {
+ AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(ilayer));
+ if (layer == 0) {
+ continue;
+ }
Int_t det = layer[0]->GetDetector();
Int_t plane = fGeom->GetPlane(det);
- if (ilayer<layers[plane][0]) layers[plane][0] = ilayer;
- if (ilayer>layers[plane][1]) layers[plane][1] = ilayer;
+ if (ilayer < layers[plane][0]) {
+ layers[plane][0] = ilayer;
+ }
+ if (ilayer > layers[plane][1]) {
+ layers[plane][1] = ilayer;
+ }
}
}
- //
+
AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(0,0);
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<maxseed;iseed++) seed[iseed]= &pseed[iseed*6];
+ Double_t hL[6]; // Tilting angle
+ Double_t xcl[6]; // X - position of reference cluster
+ Double_t ycl[6]; // Y - position of reference cluster
+ Double_t zcl[6]; // Z - position of reference cluster
+
+ AliTRDcluster *cl[6] = { 0, 0, 0, 0, 0, 0 }; // Seeding clusters
+ Float_t padlength[6] = { 10.0, 10.0, 10.0, 10.0, 10.0, 10.0 }; // Current pad-length
+
+ Double_t chi2R = 0.0;
+ Double_t chi2Z = 0.0;
+ Double_t chi2RF = 0.0;
+ Double_t chi2ZF = 0.0;
+
+ Int_t nclusters; // Total number of clusters
+ for (Int_t i = 0; i < 6; i++) {
+ hL[i] = h01;
+ if (i%2==1) {
+ hL[i]*=-1.0;
+ }
+ }
+
+ // Registered seed
+ AliTRDseed *pseed = new AliTRDseed[kMaxSeed*6];
+ AliTRDseed *seed[kMaxSeed];
+ for (Int_t iseed = 0; iseed < kMaxSeed; iseed++) {
+ seed[iseed]= &pseed[iseed*6];
+ }
AliTRDseed *cseed = seed[0];
- //
- Double_t seedquality[maxseed];
- Double_t seedquality2[maxseed];
- Double_t seedparams[maxseed][7];
- Int_t seedlayer[maxseed];
- Int_t registered =0;
- Int_t sort[maxseed];
- //
- // seeding part
- //
- for (Int_t ns = 0; ns<maxSec; ns++){ //loop over sectors
- //for (Int_t ns = 0; ns<5; ns++){ //loop over sectors
- registered = 0; // reset registerd seed counter
- cseed = seed[registered];
- Float_t iter=0;
- for (Int_t sLayer=2; sLayer>=0;sLayer--){
- //for (Int_t dseed=5;dseed<15; dseed+=3){ //loop over central seeding time bins
- iter+=1.;
- Int_t dseed = 5+Int_t(iter)*3;
+
+ Double_t seedquality[kMaxSeed];
+ Double_t seedquality2[kMaxSeed];
+ Double_t seedparams[kMaxSeed][7];
+ Int_t seedlayer[kMaxSeed];
+ Int_t registered = 0;
+ Int_t sort[kMaxSeed];
+
+ //
+ // Seeding part
+ //
+ for (Int_t ns = 0; ns < maxSec; ns++) { // Loop over sectors
+ //for (Int_t ns = 0; ns < 5; ns++) { // Loop over sectors
+
+ registered = 0; // Reset registerd seed counter
+ cseed = seed[registered];
+ Float_t iter = 0.0;
+
+ for (Int_t sLayer = 2; sLayer >= 0; sLayer--) {
+ //for (Int_t dseed = 5; dseed < 15; dseed += 3) {
+
+ iter += 1.0;
+ Int_t dseed = 5 + Int_t(iter) * 3;
+
// Initialize seeding layers
- for (Int_t ilayer=0;ilayer<6;ilayer++){
+ for (Int_t ilayer = 0; ilayer < 6; ilayer++) {
reflayers[ilayer] = fTrSec[ns]->GetLayer(layers[ilayer][1]-dseed);
xcl[ilayer] = reflayers[ilayer]->GetX();
- }
- //
- Double_t xref = (xcl[sLayer+1] + xcl[sLayer+2])*0.5;
- AliTRDpropagationLayer& layer0=*reflayers[sLayer+0];
- AliTRDpropagationLayer& layer1=*reflayers[sLayer+1];
- AliTRDpropagationLayer& layer2=*reflayers[sLayer+2];
- AliTRDpropagationLayer& layer3=*reflayers[sLayer+3];
- //
- Int_t maxn3 = layer3;
- for (Int_t icl3=0;icl3<maxn3;icl3++){
+ }
+
+ 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; icl3 < maxn3; icl3++) {
+
AliTRDcluster *cl3 = layer3[icl3];
- if (!cl3) continue;
- padlength[sLayer+3] = TMath::Sqrt(cl3->GetSigmaZ2()*12.);
+ if (!cl3) {
+ continue;
+ }
+ padlength[sLayer+3] = TMath::Sqrt(cl3->GetSigmaZ2() * 12.0);
ycl[sLayer+3] = cl3->GetY();
zcl[sLayer+3] = cl3->GetZ();
- Float_t yymin0 = ycl[sLayer+3] - 1- maxphi *(xcl[sLayer+3]-xcl[sLayer+0]);
- Float_t yymax0 = ycl[sLayer+3] + 1+ maxphi *(xcl[sLayer+3]-xcl[sLayer+0]);
- Int_t maxn0 = layer0; //
- for (Int_t icl0=layer0.Find(yymin0);icl0<maxn0;icl0++){
+ Float_t yymin0 = ycl[sLayer+3] - 1.0 - kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]);
+ Float_t yymax0 = ycl[sLayer+3] + 1.0 + kMaxPhi * (xcl[sLayer+3]-xcl[sLayer+0]);
+ Int_t maxn0 = layer0;
+
+ for (Int_t icl0 = layer0.Find(yymin0); icl0 < maxn0; icl0++) {
+
AliTRDcluster *cl0 = layer0[icl0];
- if (!cl0) continue;
- if (cl3->IsUsed()&&cl0->IsUsed()) continue;
+ if (!cl0) {
+ continue;
+ }
+ if (cl3->IsUsed() && cl0->IsUsed()) {
+ continue;
+ }
ycl[sLayer+0] = cl0->GetY();
zcl[sLayer+0] = cl0->GetZ();
- if ( ycl[sLayer+0]>yymax0) break;
- Double_t tanphi = (ycl[sLayer+3]-ycl[sLayer+0])/(xcl[sLayer+3]-xcl[sLayer+0]);
- if (TMath::Abs(tanphi)>maxphi) continue;
- Double_t tantheta = (zcl[sLayer+3]-zcl[sLayer+0])/(xcl[sLayer+3]-xcl[sLayer+0]);
- if (TMath::Abs(tantheta)>maxtheta) continue;
- padlength[sLayer+0] = TMath::Sqrt(cl0->GetSigmaZ2()*12.);
- //
- // expected position in 1 layer
- Double_t y1exp = ycl[sLayer+0]+(tanphi) *(xcl[sLayer+1]-xcl[sLayer+0]);
- Double_t z1exp = zcl[sLayer+0]+(tantheta)*(xcl[sLayer+1]-xcl[sLayer+0]);
- Float_t yymin1 = y1exp - kRoad0y-tanphi;
- Float_t yymax1 = y1exp + kRoad0y+tanphi;
- Int_t maxn1 = layer1; //
- //
- for (Int_t icl1=layer1.Find(yymin1);icl1<maxn1;icl1++){
+ if (ycl[sLayer+0] > yymax0) {
+ break;
+ }
+ Double_t tanphi = (ycl[sLayer+3]-ycl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]);
+ if (TMath::Abs(tanphi) > kMaxPhi) {
+ continue;
+ }
+ Double_t tantheta = (zcl[sLayer+3]-zcl[sLayer+0]) / (xcl[sLayer+3]-xcl[sLayer+0]);
+ if (TMath::Abs(tantheta) > kMaxTheta) {
+ continue;
+ }
+ padlength[sLayer+0] = TMath::Sqrt(cl0->GetSigmaZ2() * 12.0);
+
+ // Expected position in 1 layer
+ Double_t y1exp = ycl[sLayer+0] + (tanphi) * (xcl[sLayer+1]-xcl[sLayer+0]);
+ Double_t z1exp = zcl[sLayer+0] + (tantheta) * (xcl[sLayer+1]-xcl[sLayer+0]);
+ Float_t yymin1 = y1exp - kRoad0y - tanphi;
+ Float_t yymax1 = y1exp + kRoad0y + tanphi;
+ Int_t maxn1 = layer1;
+
+ for (Int_t icl1 = layer1.Find(yymin1); icl1 < maxn1; icl1++) {
+
AliTRDcluster *cl1 = layer1[icl1];
- if (!cl1) continue;
+ if (!cl1) {
+ continue;
+ }
Int_t nusedCl = 0;
if (cl3->IsUsed()) nusedCl++;
if (cl0->IsUsed()) nusedCl++;
if (cl1->IsUsed()) nusedCl++;
- if (nusedCl>1) continue;
+ if (nusedCl > 1) {
+ continue;
+ }
ycl[sLayer+1] = cl1->GetY();
zcl[sLayer+1] = cl1->GetZ();
- if ( ycl[sLayer+1]>yymax1) break;
- if (TMath::Abs(ycl[sLayer+1]-y1exp)>kRoad0y+tanphi) continue;
- if (TMath::Abs(zcl[sLayer+1]-z1exp)>kRoad0z) continue;
- padlength[sLayer+1] = TMath::Sqrt(cl1->GetSigmaZ2()*12.);
- //
- Double_t y2exp = ycl[sLayer+0]+(tanphi) *(xcl[sLayer+2]-xcl[sLayer+0])+(ycl[sLayer+1]-y1exp);
- Double_t z2exp = zcl[sLayer+0]+(tantheta)*(xcl[sLayer+2]-xcl[sLayer+0]);
- Int_t index2 = layer2.FindNearestCluster(y2exp,z2exp,kRoad1y, kRoad1z);
- if (index2<=0) continue;
- AliTRDcluster *cl2 = (AliTRDcluster*)GetCluster(index2);
- padlength[sLayer+2] = TMath::Sqrt(cl2->GetSigmaZ2()*12.);
- ycl[sLayer+2] = cl2->GetY();
- zcl[sLayer+2] = cl2->GetZ();
- if (TMath::Abs(cl2->GetZ()-z2exp)>kRoad0z) continue;
- //
+ if (ycl[sLayer+1] > yymax1) {
+ break;
+ }
+ if (TMath::Abs(ycl[sLayer+1]-y1exp) > kRoad0y+tanphi) {
+ continue;
+ }
+ if (TMath::Abs(zcl[sLayer+1]-z1exp) > kRoad0z) {
+ continue;
+ }
+ padlength[sLayer+1] = TMath::Sqrt(cl1->GetSigmaZ2() * 12.0);
+
+ Double_t y2exp = ycl[sLayer+0]+(tanphi) * (xcl[sLayer+2]-xcl[sLayer+0]) + (ycl[sLayer+1]-y1exp);
+ Double_t z2exp = zcl[sLayer+0]+(tantheta) * (xcl[sLayer+2]-xcl[sLayer+0]);
+ Int_t index2 = layer2.FindNearestCluster(y2exp,z2exp,kRoad1y,kRoad1z);
+ if (index2 <= 0) {
+ continue;
+ }
+ AliTRDcluster *cl2 = (AliTRDcluster *) GetCluster(index2);
+ padlength[sLayer+2] = TMath::Sqrt(cl2->GetSigmaZ2() * 12.0);
+ ycl[sLayer+2] = cl2->GetY();
+ zcl[sLayer+2] = cl2->GetZ();
+ if (TMath::Abs(cl2->GetZ()-z2exp) > kRoad0z) {
+ continue;
+ }
+
rieman.Reset();
rieman.AddPoint(xcl[sLayer+0],ycl[sLayer+0],zcl[sLayer+0],1,10);
rieman.AddPoint(xcl[sLayer+1],ycl[sLayer+1],zcl[sLayer+1],1,10);
rieman.AddPoint(xcl[sLayer+3],ycl[sLayer+3],zcl[sLayer+3],1,10);
rieman.AddPoint(xcl[sLayer+2],ycl[sLayer+2],zcl[sLayer+2],1,10);
rieman.Update();
- //
- // reset fitter
- for (Int_t iLayer=0;iLayer<6;iLayer++){
+
+ // Reset fitter
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
cseed[iLayer].Reset();
}
- chi2Z =0.; chi2R=0.;
- for (Int_t iLayer=0;iLayer<4;iLayer++){
- cseed[sLayer+iLayer].fZref[0] = rieman.GetZat(xcl[sLayer+iLayer]);
- chi2Z += (cseed[sLayer+iLayer].fZref[0]- zcl[sLayer+iLayer])*
- (cseed[sLayer+iLayer].fZref[0]- zcl[sLayer+iLayer]);
- cseed[sLayer+iLayer].fZref[1] = rieman.GetDZat(xcl[sLayer+iLayer]);
- cseed[sLayer+iLayer].fYref[0] = rieman.GetYat(xcl[sLayer+iLayer]);
- chi2R += (cseed[sLayer+iLayer].fYref[0]- ycl[sLayer+iLayer])*
- (cseed[sLayer+iLayer].fYref[0]- ycl[sLayer+iLayer]);
- cseed[sLayer+iLayer].fYref[1] = rieman.GetDYat(xcl[sLayer+iLayer]);
+ chi2Z = 0.0;
+ chi2R = 0.0;
+
+ for (Int_t iLayer = 0; iLayer < 4; iLayer++) {
+ cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer]));
+ chi2Z += (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer])
+ * (cseed[sLayer+iLayer].GetZref(0)- zcl[sLayer+iLayer]);
+ cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer]));
+ cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer]));
+ chi2R += (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer])
+ * (cseed[sLayer+iLayer].GetYref(0)- ycl[sLayer+iLayer]);
+ cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer]));
}
- if (TMath::Sqrt(chi2R)>1./iter) continue;
- if (TMath::Sqrt(chi2Z)>7./iter) continue;
- //
- //
- //
- Float_t minmax[2]={-100,100};
- for (Int_t iLayer=0;iLayer<4;iLayer++){
- Float_t max = zcl[sLayer+iLayer]+padlength[sLayer+iLayer]*0.5+1 -cseed[sLayer+iLayer].fZref[0];
- if (max<minmax[1]) minmax[1]=max;
- Float_t min = zcl[sLayer+iLayer]-padlength[sLayer+iLayer]*0.5-1 -cseed[sLayer+iLayer].fZref[0];
- if (min>minmax[0]) minmax[0]=min;
+ if (TMath::Sqrt(chi2R) > 1.0/iter) {
+ continue;
+ }
+ if (TMath::Sqrt(chi2Z) > 7.0/iter) {
+ continue;
+ }
+
+ Float_t minmax[2] = { -100.0, 100.0 };
+ for (Int_t iLayer = 0; iLayer < 4; iLayer++) {
+ Float_t max = zcl[sLayer+iLayer]+padlength[sLayer+iLayer] * 0.5
+ + 1.0 - cseed[sLayer+iLayer].GetZref(0);
+ if (max < minmax[1]) {
+ minmax[1] = max;
+ }
+ Float_t min = zcl[sLayer+iLayer]-padlength[sLayer+iLayer] * 0.5
+ - 1.0 - cseed[sLayer+iLayer].GetZref(0);
+ if (min > minmax[0]) {
+ minmax[0] = min;
+ }
}
+
Bool_t isFake = kFALSE;
- if (cl0->GetLabel(0)!=cl3->GetLabel(0)) isFake = kTRUE;
- if (cl1->GetLabel(0)!=cl3->GetLabel(0)) isFake = kTRUE;
- if (cl2->GetLabel(0)!=cl3->GetLabel(0)) isFake = kTRUE;
- if ((!isFake) || (icl3%10)==0 ){ //debugging print
- TTreeSRedirector& cstream = *fDebugStreamer;
- cstream<<"Seeds0"<<
- "isFake="<<isFake<<
- "Cl0.="<<cl0<<
- "Cl1.="<<cl1<<
- "Cl2.="<<cl2<<
- "Cl3.="<<cl3<<
- "Xref="<<xref<<
- "X0="<<xcl[sLayer+0]<<
- "X1="<<xcl[sLayer+1]<<
- "X2="<<xcl[sLayer+2]<<
- "X3="<<xcl[sLayer+3]<<
- "Y2exp="<<y2exp<<
- "Z2exp="<<z2exp<<
- "Chi2R="<<chi2R<<
- "Chi2Z="<<chi2Z<<
- "Seed0.="<<&cseed[sLayer+0]<<
- "Seed1.="<<&cseed[sLayer+1]<<
- "Seed2.="<<&cseed[sLayer+2]<<
- "Seed3.="<<&cseed[sLayer+3]<<
- "Zmin="<<minmax[0]<<
- "Zmax="<<minmax[1]<<
- "\n";
+ if (cl0->GetLabel(0) != cl3->GetLabel(0)) {
+ isFake = kTRUE;
}
-
- //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- //<<<<<<<<<<<<<<<<<< FIT SEEDING PART <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
+ if (cl1->GetLabel(0) != cl3->GetLabel(0)) {
+ isFake = kTRUE;
+ }
+ if (cl2->GetLabel(0) != cl3->GetLabel(0)) {
+ isFake = kTRUE;
+ }
+
+ if (AliTRDReconstructor::StreamLevel() > 0) {
+ if ((!isFake) || ((icl3%10) == 0)) { // Debugging print
+ TTreeSRedirector &cstream = *fDebugStreamer;
+ cstream << "Seeds0"
+ << "isFake=" << isFake
+ << "Cl0.=" << cl0
+ << "Cl1.=" << cl1
+ << "Cl2.=" << cl2
+ << "Cl3.=" << cl3
+ << "Xref=" << xref
+ << "X0=" << xcl[sLayer+0]
+ << "X1=" << xcl[sLayer+1]
+ << "X2=" << xcl[sLayer+2]
+ << "X3=" << xcl[sLayer+3]
+ << "Y2exp=" << y2exp
+ << "Z2exp=" << z2exp
+ << "Chi2R=" << chi2R
+ << "Chi2Z=" << chi2Z
+ << "Seed0.=" << &cseed[sLayer+0]
+ << "Seed1.=" << &cseed[sLayer+1]
+ << "Seed2.=" << &cseed[sLayer+2]
+ << "Seed3.=" << &cseed[sLayer+3]
+ << "Zmin=" << minmax[0]
+ << "Zmax=" << minmax[1]
+ << "\n";
+ }
+ }
+
+ ////////////////////////////////////////////////////////////////////////////////////
+ //
+ // Fit seeding part
+ //
+ ////////////////////////////////////////////////////////////////////////////////////
+
cl[sLayer+0] = cl0;
cl[sLayer+1] = cl1;
cl[sLayer+2] = cl2;
cl[sLayer+3] = cl3;
- Bool_t isOK=kTRUE;
- for (Int_t jLayer=0;jLayer<4;jLayer++){
- cseed[sLayer+jLayer].fTilt = hL[sLayer+jLayer];
- cseed[sLayer+jLayer].fPadLength = padlength[sLayer+jLayer];
- cseed[sLayer+jLayer].fX0 = xcl[sLayer+jLayer];
- for (Int_t iter=0; iter<2; iter++){
+ Bool_t isOK = kTRUE;
+
+ for (Int_t jLayer = 0; jLayer < 4; jLayer++) {
+
+ cseed[sLayer+jLayer].SetTilt(hL[sLayer+jLayer]);
+ cseed[sLayer+jLayer].SetPadLength(padlength[sLayer+jLayer]);
+ cseed[sLayer+jLayer].SetX0(xcl[sLayer+jLayer]);
+
+ for (Int_t iter = 0; iter < 2; iter++) {
+
//
- // in iteration 0 we try only one pad-row
- // if quality not sufficient we try 2 pad-rows - about 5% of tracks cross 2 pad-rows
+ // In iteration 0 we try only one pad-row
+ // If quality not sufficient we try 2 pad-rows - about 5% of tracks cross 2 pad-rows
//
AliTRDseed tseed = cseed[sLayer+jLayer];
- Float_t roadz = padlength[sLayer+jLayer]*0.5;
- if (iter>0) roadz = padlength[sLayer+jLayer];
- //
- Float_t quality =10000;
- for (Int_t iTime=2;iTime<20;iTime++){
- AliTRDpropagationLayer& layer = *(fTrSec[ns]->GetLayer(layers[sLayer+jLayer][1]-iTime));
- Double_t dxlayer= layer.GetX()-xcl[sLayer+jLayer];
- Double_t zexp = cl[sLayer+jLayer]->GetZ() ;
- if (iter>0){
- // try 2 pad-rows in second iteration
- zexp = tseed.fZref[0]+ tseed.fZref[1]*dxlayer;
- if (zexp>cl[sLayer+jLayer]->GetZ()) zexp = cl[sLayer+jLayer]->GetZ()+padlength[sLayer+jLayer]*0.5;
- if (zexp<cl[sLayer+jLayer]->GetZ()) zexp = cl[sLayer+jLayer]->GetZ()-padlength[sLayer+jLayer]*0.5;
+ Float_t roadz = padlength[sLayer+jLayer] * 0.5;
+ if (iter > 0) {
+ roadz = padlength[sLayer+jLayer];
+ }
+
+ Float_t quality = 10000.0;
+
+ for (Int_t iTime = 2; iTime < 20; iTime++) {
+
+ AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[sLayer+jLayer][1]-iTime));
+ Double_t dxlayer = layer.GetX() - xcl[sLayer+jLayer];
+ Double_t zexp = cl[sLayer+jLayer]->GetZ();
+
+ if (iter > 0) {
+ // Try 2 pad-rows in second iteration
+ zexp = tseed.GetZref(0) + tseed.GetZref(1) * dxlayer;
+ if (zexp > cl[sLayer+jLayer]->GetZ()) {
+ zexp = cl[sLayer+jLayer]->GetZ() + padlength[sLayer+jLayer]*0.5;
+ }
+ if (zexp < cl[sLayer+jLayer]->GetZ()) {
+ zexp = cl[sLayer+jLayer]->GetZ() - padlength[sLayer+jLayer]*0.5;
+ }
+ }
+
+ Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer;
+ Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz);
+ if (index <= 0) {
+ continue;
}
- //
- 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
- }
+ AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index);
+
+ tseed.SetIndexes(iTime,index);
+ tseed.SetClusters(iTime,cl); // Register cluster
+ tseed.SetX(iTime,dxlayer); // Register cluster
+ tseed.SetY(iTime,cl->GetY()); // Register cluster
+ tseed.SetZ(iTime,cl->GetZ()); // Register cluster
+
+ }
+
tseed.Update();
- //count the number of clusters and distortions into quality
- Float_t dangle = tseed.fYfit[1]-tseed.fYref[1];
- Float_t tquality = (18-tseed.fN2)/2. + TMath::Abs(dangle)/0.1+
- TMath::Abs(tseed.fYfit[0]-tseed.fYref[0])/0.2+
- 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer];
- if (iter==0 && tseed.isOK()) {
+
+ // Count the number of clusters and distortions into quality
+ Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1);
+ Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1
+ + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2
+ + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer];
+ if ((iter == 0) && tseed.IsOK()) {
cseed[sLayer+jLayer] = tseed;
- quality = tquality;
- if (tquality<5) break;
+ quality = tquality;
+ if (tquality < 5) {
+ break;
+ }
}
- if (tseed.isOK() && tquality<quality)
- cseed[sLayer+jLayer] = tseed;
- }
- if (!cseed[sLayer+jLayer].isOK()){
+ if (tseed.IsOK() && (tquality < quality)) {
+ cseed[sLayer+jLayer] = tseed;
+ }
+
+ } // Loop: iter
+
+ if (!cseed[sLayer+jLayer].IsOK()) {
isOK = kFALSE;
break;
- }
+ }
+
cseed[sLayer+jLayer].CookLabels();
cseed[sLayer+jLayer].UpdateUsed();
- nusedCl+= cseed[sLayer+jLayer].fNUsed;
- if (nusedCl>25){
+ nusedCl += cseed[sLayer+jLayer].GetNUsed();
+ if (nusedCl > 25) {
isOK = kFALSE;
break;
- }
+ }
+
+ } // Loop: jLayer
+
+ if (!isOK) {
+ continue;
}
- //
- if (!isOK) continue;
- nclusters=0;
- for (Int_t iLayer=0;iLayer<4;iLayer++){
- if (cseed[sLayer+iLayer].isOK()){
- nclusters+=cseed[sLayer+iLayer].fN2;
+ nclusters = 0;
+ for (Int_t iLayer = 0; iLayer < 4; iLayer++) {
+ if (cseed[sLayer+iLayer].IsOK()) {
+ nclusters += cseed[sLayer+iLayer].GetN2();
}
}
- //
- // iteration 0
+
+ // Iteration 0
rieman.Reset();
- for (Int_t iLayer=0;iLayer<4;iLayer++){
- rieman.AddPoint(xcl[sLayer+iLayer],cseed[sLayer+iLayer].fYfitR[0],
- cseed[sLayer+iLayer].fZProb,1,10);
+ for (Int_t iLayer = 0; iLayer < 4; iLayer++) {
+ rieman.AddPoint(xcl[sLayer+iLayer]
+ ,cseed[sLayer+iLayer].GetYfitR(0)
+ ,cseed[sLayer+iLayer].GetZProb()
+ ,1
+ ,10);
}
rieman.Update();
- //
- //
- chi2R =0; chi2Z=0;
- for (Int_t iLayer=0;iLayer<4;iLayer++){
- cseed[sLayer+iLayer].fYref[0] = rieman.GetYat(xcl[sLayer+iLayer]);
- chi2R += (cseed[sLayer+iLayer].fYref[0]-cseed[sLayer+iLayer].fYfitR[0])*
- (cseed[sLayer+iLayer].fYref[0]-cseed[sLayer+iLayer].fYfitR[0]);
- cseed[sLayer+iLayer].fYref[1] = rieman.GetDYat(xcl[sLayer+iLayer]);
- cseed[sLayer+iLayer].fZref[0] = rieman.GetZat(xcl[sLayer+iLayer]);
- chi2Z += (cseed[sLayer+iLayer].fZref[0]- cseed[sLayer+iLayer].fMeanz)*
- (cseed[sLayer+iLayer].fZref[0]- cseed[sLayer+iLayer].fMeanz);
- cseed[sLayer+iLayer].fZref[1] = rieman.GetDZat(xcl[sLayer+iLayer]);
+
+ chi2R = 0.0;
+ chi2Z = 0.0;
+
+ for (Int_t iLayer = 0; iLayer < 4; iLayer++) {
+ cseed[sLayer+iLayer].SetYref(0,rieman.GetYat(xcl[sLayer+iLayer]));
+ chi2R += (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0))
+ * (cseed[sLayer+iLayer].GetYref(0) - cseed[sLayer+iLayer].GetYfitR(0));
+ cseed[sLayer+iLayer].SetYref(1,rieman.GetDYat(xcl[sLayer+iLayer]));
+ cseed[sLayer+iLayer].SetZref(0,rieman.GetZat(xcl[sLayer+iLayer]));
+ chi2Z += (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz())
+ * (cseed[sLayer+iLayer].GetZref(0) - cseed[sLayer+iLayer].GetMeanz());
+ cseed[sLayer+iLayer].SetZref(1,rieman.GetDZat(xcl[sLayer+iLayer]));
}
Double_t curv = rieman.GetC();
+
//
- // likelihoods
- //
- Double_t sumda =
- TMath::Abs(cseed[sLayer+0].fYfitR[1]- cseed[sLayer+0].fYref[1])+
- TMath::Abs(cseed[sLayer+1].fYfitR[1]- cseed[sLayer+1].fYref[1])+
- TMath::Abs(cseed[sLayer+2].fYfitR[1]- cseed[sLayer+2].fYref[1])+
- TMath::Abs(cseed[sLayer+3].fYfitR[1]- cseed[sLayer+3].fYref[1]);
- Double_t likea = TMath::Exp(-sumda*10.6);
- Double_t likechi2 = 0.0000000001;
- if (chi2R<0.5) likechi2+=TMath::Exp(-TMath::Sqrt(chi2R)*7.73);
- Double_t likechi2z = TMath::Exp(-chi2Z*0.088)/TMath::Exp(-chi2Z*0.019);
- Double_t likeN = TMath::Exp(-(72-nclusters)*0.19);
- Double_t like = likea*likechi2*likechi2z*likeN;
+ // Likelihoods
//
- Double_t likePrimY = TMath::Exp(-TMath::Abs(cseed[sLayer+0].fYref[1]-130*curv)*1.9);
- Double_t likePrimZ = TMath::Exp(-TMath::Abs(cseed[sLayer+0].fZref[1]-
- cseed[sLayer+0].fZref[0]/xcl[sLayer+0])*5.9);
+ Double_t sumda = TMath::Abs(cseed[sLayer+0].GetYfitR(1) - cseed[sLayer+0].GetYref(1))
+ + TMath::Abs(cseed[sLayer+1].GetYfitR(1) - cseed[sLayer+1].GetYref(1))
+ + TMath::Abs(cseed[sLayer+2].GetYfitR(1) - cseed[sLayer+2].GetYref(1))
+ + TMath::Abs(cseed[sLayer+3].GetYfitR(1) - cseed[sLayer+3].GetYref(1));
+ Double_t likea = TMath::Exp(-sumda*10.6);
+ Double_t likechi2 = 0.0000000001;
+ if (chi2R < 0.5) {
+ likechi2 += TMath::Exp(-TMath::Sqrt(chi2R) * 7.73);
+ }
+ Double_t likechi2z = TMath::Exp(-chi2Z * 0.088) / TMath::Exp(-chi2Z * 0.019);
+ Double_t likeN = TMath::Exp(-(72 - nclusters) * 0.19);
+ Double_t like = likea * likechi2 * likechi2z * likeN;
+ Double_t likePrimY = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetYref(1) - 130.0*curv) * 1.9);
+ Double_t likePrimZ = TMath::Exp(-TMath::Abs(cseed[sLayer+0].GetZref(1)
+ - cseed[sLayer+0].GetZref(0) / xcl[sLayer+0]) * 5.9);
Double_t likePrim = TMath::Max(likePrimY*likePrimZ,0.0005);
- seedquality[registered] = like;
- seedlayer[registered] = sLayer;
- if (TMath::Log(0.000000000000001+like)<-15) continue;
+ seedquality[registered] = like;
+ seedlayer[registered] = sLayer;
+ if (TMath::Log(0.000000000000001 + like) < -15) {
+ continue;
+ }
AliTRDseed seedb[6];
- for (Int_t iLayer=0;iLayer<6;iLayer++){
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
seedb[iLayer] = cseed[iLayer];
}
+
+ ////////////////////////////////////////////////////////////////////////////////////
//
- //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- //<<<<<<<<<<<<<<< FULL TRACK FIT PART <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- //
- Int_t nlayers = 0;
- Int_t nusedf = 0;
- Int_t findable = 0;
+ // Full track fit part
//
- // add new layers - avoid long extrapolation
+ ////////////////////////////////////////////////////////////////////////////////////
+
+ Int_t nlayers = 0;
+ Int_t nusedf = 0;
+ Int_t findable = 0;
+
//
- Int_t tLayer[2]={0,0};
- if (sLayer==2) {tLayer[0]=1; tLayer[1]=0;}
- if (sLayer==1) {tLayer[0]=5; tLayer[1]=0;}
- if (sLayer==0) {tLayer[0]=4; tLayer[1]=5;}
+ // Add new layers - avoid long extrapolation
//
- for (Int_t iLayer=0;iLayer<2;iLayer++){
- Int_t jLayer = tLayer[iLayer]; // set tracking layer
+ Int_t tLayer[2] = { 0, 0 };
+ if (sLayer == 2) {
+ tLayer[0] = 1;
+ tLayer[1] = 0;
+ }
+ if (sLayer == 1) {
+ tLayer[0] = 5;
+ tLayer[1] = 0;
+ }
+ if (sLayer == 0) {
+ tLayer[0] = 4;
+ tLayer[1] = 5;
+ }
+
+ for (Int_t iLayer = 0; iLayer < 2; iLayer++) {
+ Int_t jLayer = tLayer[iLayer]; // Set tracking layer
cseed[jLayer].Reset();
- cseed[jLayer].fTilt = hL[jLayer];
- cseed[jLayer].fPadLength = padlength[jLayer];
- cseed[jLayer].fX0 = xcl[jLayer];
- // get pad length and rough cluster
- Int_t indexdummy = reflayers[jLayer]->FindNearestCluster(cseed[jLayer].fYref[0],
- cseed[jLayer].fZref[0],kRoad2y,kRoad2z);
- if (indexdummy<=0) continue;
- AliTRDcluster *cldummy = (AliTRDcluster*)GetCluster(indexdummy);
- padlength[jLayer] = TMath::Sqrt(cldummy->GetSigmaZ2()*12.);
+ cseed[jLayer].SetTilt(hL[jLayer]);
+ cseed[jLayer].SetPadLength(padlength[jLayer]);
+ cseed[jLayer].SetX0(xcl[jLayer]);
+ // Get pad length and rough cluster
+ Int_t indexdummy = reflayers[jLayer]->FindNearestCluster(cseed[jLayer].GetYref(0)
+ ,cseed[jLayer].GetZref(0)
+ ,kRoad2y
+ ,kRoad2z);
+ if (indexdummy <= 0) {
+ continue;
+ }
+ AliTRDcluster *cldummy = (AliTRDcluster *) GetCluster(indexdummy);
+ padlength[jLayer] = TMath::Sqrt(cldummy->GetSigmaZ2() * 12.0);
}
- AliTRDseed::FitRiemanTilt(cseed, kTRUE);
- //
- for (Int_t iLayer=0;iLayer<2;iLayer++){
- Int_t jLayer = tLayer[iLayer]; // set tracking layer
- if ( (jLayer==0) && !(cseed[1].isOK())) continue; // break not allowed
- if ( (jLayer==5) && !(cseed[4].isOK())) continue; // break not allowed
- Float_t zexp = cseed[jLayer].fZref[0];
- Double_t zroad = padlength[jLayer]*0.5+1.;
- //
- //
- for (Int_t iter=0;iter<2;iter++){
+ AliTRDseed::FitRiemanTilt(cseed,kTRUE);
+
+ for (Int_t iLayer = 0; iLayer < 2; iLayer++) {
+
+ Int_t jLayer = tLayer[iLayer]; // set tracking layer
+ if ((jLayer == 0) && !(cseed[1].IsOK())) {
+ continue; // break not allowed
+ }
+ if ((jLayer == 5) && !(cseed[4].IsOK())) {
+ continue; // break not allowed
+ }
+ Float_t zexp = cseed[jLayer].GetZref(0);
+ Double_t zroad = padlength[jLayer] * 0.5 + 1.0;
+
+ for (Int_t iter = 0; iter < 2; iter++) {
+
AliTRDseed tseed = cseed[jLayer];
- Float_t quality = 10000;
- for (Int_t iTime=2;iTime<20;iTime++){
- AliTRDpropagationLayer& layer = *(fTrSec[ns]->GetLayer(layers[jLayer][1]-iTime));
- Double_t dxlayer = layer.GetX()-xcl[jLayer];
- Double_t yexp = tseed.fYref[0]+tseed.fYref[1]*dxlayer;
- Float_t yroad = kRoad1y;
- Int_t index = layer.FindNearestCluster(yexp,zexp, yroad, zroad);
- if (index<=0) continue;
- AliTRDcluster *cl = (AliTRDcluster*)GetCluster(index);
- //
- tseed.fIndexes[iTime] = index;
- tseed.fClusters[iTime] = cl; // register cluster
- tseed.fX[iTime] = dxlayer; // register cluster
- tseed.fY[iTime] = cl->GetY(); // register cluster
- tseed.fZ[iTime] = cl->GetZ(); // register cluster
- }
+ Float_t quality = 10000.0;
+
+ for (Int_t iTime = 2; iTime < 20; iTime++) {
+ AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[jLayer][1]-iTime));
+ Double_t dxlayer = layer.GetX()-xcl[jLayer];
+ Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer;
+ Float_t yroad = kRoad1y;
+ Int_t index = layer.FindNearestCluster(yexp,zexp,yroad,zroad);
+ if (index <= 0) {
+ continue;
+ }
+ AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index);
+ tseed.SetIndexes(iTime,index);
+ tseed.SetClusters(iTime,cl); // Register cluster
+ tseed.SetX(iTime,dxlayer); // Register cluster
+ tseed.SetY(iTime,cl->GetY()); // Register cluster
+ tseed.SetZ(iTime,cl->GetZ()); // Register cluster
+ }
+
tseed.Update();
- if (tseed.isOK()){
- Float_t dangle = tseed.fYfit[1]-tseed.fYref[1];
- Float_t tquality = (18-tseed.fN2)/2. + TMath::Abs(dangle)/0.1+
- TMath::Abs(tseed.fYfit[0]-tseed.fYref[0])/0.2+
- 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer];
- //
- if (tquality<quality){
- cseed[jLayer]=tseed;
- quality = tquality;
+ if (tseed.IsOK()) {
+ Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1);
+ Float_t tquality = (18.0 - tseed.GetN2())/2.0 + TMath::Abs(dangle) / 0.1
+ + TMath::Abs(tseed.GetYfit(0) - tseed.GetYref(0)) / 0.2
+ + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer];
+ if (tquality < quality) {
+ cseed[jLayer] = tseed;
+ quality = tquality;
}
}
- zroad*=2.;
- }
- if ( cseed[jLayer].isOK()){
+
+ zroad *= 2.0;
+
+ } // Loop: iter
+
+ if ( cseed[jLayer].IsOK()) {
cseed[jLayer].CookLabels();
cseed[jLayer].UpdateUsed();
- nusedf+= cseed[jLayer].fNUsed;
- AliTRDseed::FitRiemanTilt(cseed, kTRUE);
+ nusedf += cseed[jLayer].GetNUsed();
+ AliTRDseed::FitRiemanTilt(cseed,kTRUE);
}
- }
- //
- //
- // make copy
+
+ } // Loop: iLayer
+
+ // Make copy
AliTRDseed bseed[6];
- for (Int_t jLayer=0;jLayer<6;jLayer++){
+ for (Int_t jLayer = 0; jLayer < 6; jLayer++) {
bseed[jLayer] = cseed[jLayer];
- }
- Float_t lastquality = 10000;
- Float_t lastchi2 = 10000;
- Float_t chi2 = 1000;
+ }
+ Float_t lastquality = 10000.0;
+ Float_t lastchi2 = 10000.0;
+ Float_t chi2 = 1000.0;
- //
- for (Int_t iter =0; iter<4;iter++){
- //
- // sort tracklets according "quality", try to "improve" 4 worst
- //
- Float_t sumquality = 0;
+ for (Int_t iter = 0; iter < 4; iter++) {
+
+ // Sort tracklets according "quality", try to "improve" 4 worst
+ Float_t sumquality = 0.0;
Float_t squality[6];
Int_t sortindexes[6];
- for (Int_t jLayer=0;jLayer<6;jLayer++){
- if (bseed[jLayer].isOK()){
+
+ for (Int_t jLayer = 0; jLayer < 6; jLayer++) {
+ if (bseed[jLayer].IsOK()) {
AliTRDseed &tseed = bseed[jLayer];
- Double_t zcor = tseed.fTilt*(tseed.fZProb-tseed.fZref[0]);
- 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]-zcor))/0.2+
- 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer];
- squality[jLayer] = tquality;
+ Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0));
+ Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1);
+ Float_t tquality = (18.0 - tseed.GetN2()) / 2.0 + TMath::Abs(dangle) / 0.1
+ + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2
+ + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer];
+ squality[jLayer] = tquality;
+ }
+ else {
+ squality[jLayer] = -1.0;
}
- else squality[jLayer]=-1;
sumquality +=squality[jLayer];
}
- if (sumquality>=lastquality || chi2>lastchi2) break;
+ if ((sumquality >= lastquality) ||
+ (chi2 > lastchi2)) {
+ break;
+ }
lastquality = sumquality;
lastchi2 = chi2;
- if (iter>0){
- for (Int_t jLayer=0;jLayer<6;jLayer++){
+ if (iter > 0) {
+ for (Int_t jLayer = 0; jLayer < 6; jLayer++) {
cseed[jLayer] = bseed[jLayer];
}
}
TMath::Sort(6,squality,sortindexes,kFALSE);
- //
- //
- for (Int_t jLayer=5;jLayer>1;jLayer--){
+
+ for (Int_t jLayer = 5; jLayer > 1; jLayer--) {
+
Int_t bLayer = sortindexes[jLayer];
AliTRDseed tseed = bseed[bLayer];
- for (Int_t iTime=2;iTime<20;iTime++){
- AliTRDpropagationLayer& layer = *(fTrSec[ns]->GetLayer(layers[bLayer][1]-iTime));
- Double_t dxlayer= layer.GetX()-xcl[bLayer];
- //
- Double_t zexp = tseed.fZref[0];
- Double_t zcor = tseed.fTilt*(tseed.fZProb-tseed.fZref[0]);
- //
- Float_t roadz = padlength[bLayer]+1;
- if (TMath::Abs(tseed.fZProb-zexp)> padlength[bLayer]*0.5) {roadz = padlength[bLayer]*0.5;}
- if (tseed.fZfit[1]*tseed.fZref[1]<0) {roadz = padlength[bLayer]*0.5;}
- if (TMath::Abs(tseed.fZProb-zexp)<0.1*padlength[bLayer]) {
- zexp = tseed.fZProb;
- roadz = padlength[bLayer]*0.5;
+
+ for (Int_t iTime = 2; iTime < 20; iTime++) {
+
+ AliTRDpropagationLayer &layer = *(fTrSec[ns]->GetLayer(layers[bLayer][1]-iTime));
+ Double_t dxlayer = layer.GetX() - xcl[bLayer];
+ Double_t zexp = tseed.GetZref(0);
+ Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0));
+ Float_t roadz = padlength[bLayer] + 1;
+ if (TMath::Abs(tseed.GetZProb() - zexp) > 0.5*padlength[bLayer]) {
+ roadz = padlength[bLayer] * 0.5;
+ }
+ if (tseed.GetZfit(1)*tseed.GetZref(1) < 0.0) {
+ roadz = padlength[bLayer] * 0.5;
+ }
+ if (TMath::Abs(tseed.GetZProb() - zexp) < 0.1*padlength[bLayer]) {
+ zexp = tseed.GetZProb();
+ roadz = padlength[bLayer] * 0.5;
+ }
+
+ Double_t yexp = tseed.GetYref(0) + tseed.GetYref(1) * dxlayer - zcor;
+ Int_t index = layer.FindNearestCluster(yexp,zexp,kRoad1y,roadz);
+ if (index <= 0) {
+ continue;
}
- //
- 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
- }
+ AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index);
+
+ tseed.SetIndexes(iTime,index);
+ tseed.SetClusters(iTime,cl); // Register cluster
+ tseed.SetX(iTime,dxlayer); // Register cluster
+ tseed.SetY(iTime,cl->GetY()); // Register cluster
+ tseed.SetZ(iTime,cl->GetZ()); // Register cluster
+
+ }
+
tseed.Update();
- if (tseed.isOK()) {
- Float_t dangle = tseed.fYfit[1]-tseed.fYref[1];
- Double_t zcor = tseed.fTilt*(tseed.fZProb-tseed.fZref[0]);
- //
- Float_t tquality = (18-tseed.fN2)/2. + TMath::Abs(dangle)/0.1+
- TMath::Abs(tseed.fYfit[0]-(tseed.fYref[0]-zcor))/0.2+
- 2.*TMath::Abs(tseed.fMeanz-tseed.fZref[0])/padlength[jLayer];
- //
- if (tquality<squality[bLayer])
+ if (tseed.IsOK()) {
+ Float_t dangle = tseed.GetYfit(1) - tseed.GetYref(1);
+ Double_t zcor = tseed.GetTilt() * (tseed.GetZProb() - tseed.GetZref(0));
+ Float_t tquality = (18.0 - tseed.GetN2()) / 2.0
+ + TMath::Abs(dangle) / 0.1
+ + TMath::Abs(tseed.GetYfit(0) - (tseed.GetYref(0) - zcor)) / 0.2
+ + 2.0 * TMath::Abs(tseed.GetMeanz() - tseed.GetZref(0)) / padlength[jLayer];
+ if (tquality<squality[bLayer]) {
bseed[bLayer] = tseed;
+ }
}
- }
- chi2 = AliTRDseed::FitRiemanTilt(bseed, kTRUE);
- }
- //
- //
- //
- nclusters = 0;
- nlayers = 0;
- findable = 0;
- for (Int_t iLayer=0;iLayer<6;iLayer++) {
- if (TMath::Abs(cseed[iLayer].fYref[0]/cseed[iLayer].fX0)<0.15)
+
+ } // Loop: jLayer
+
+ chi2 = AliTRDseed::FitRiemanTilt(bseed,kTRUE);
+
+ } // Loop: iter
+
+ nclusters = 0;
+ nlayers = 0;
+ findable = 0;
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+ if (TMath::Abs(cseed[iLayer].GetYref(0) / cseed[iLayer].GetX0()) < 0.15) {
findable++;
- if (cseed[iLayer].isOK()){
- nclusters+=cseed[iLayer].fN2;
+ }
+ if (cseed[iLayer].IsOK()) {
+ nclusters += cseed[iLayer].GetN2();
nlayers++;
}
}
- if (nlayers<3) continue;
+ if (nlayers < 3) {
+ continue;
+ }
rieman.Reset();
- for (Int_t iLayer=0;iLayer<6;iLayer++){
- if (cseed[iLayer].isOK()) rieman.AddPoint(xcl[iLayer],cseed[iLayer].fYfitR[0],
- cseed[iLayer].fZProb,1,10);
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+ if (cseed[iLayer].IsOK()) {
+ rieman.AddPoint(xcl[iLayer]
+ ,cseed[iLayer].GetYfitR(0)
+ ,cseed[iLayer].GetZProb()
+ ,1
+ ,10);
+ }
}
rieman.Update();
- //
- chi2RF =0;
- chi2ZF =0;
- for (Int_t iLayer=0;iLayer<6;iLayer++){
- if (cseed[iLayer].isOK()){
- cseed[iLayer].fYref[0] = rieman.GetYat(xcl[iLayer]);
- chi2RF += (cseed[iLayer].fYref[0]-cseed[iLayer].fYfitR[0])*
- (cseed[iLayer].fYref[0]-cseed[iLayer].fYfitR[0]);
- cseed[iLayer].fYref[1] = rieman.GetDYat(xcl[iLayer]);
- cseed[iLayer].fZref[0] = rieman.GetZat(xcl[iLayer]);
- chi2ZF += (cseed[iLayer].fZref[0]- cseed[iLayer].fMeanz)*
- (cseed[iLayer].fZref[0]- cseed[iLayer].fMeanz);
- cseed[iLayer].fZref[1] = rieman.GetDZat(xcl[iLayer]);
+
+ chi2RF = 0.0;
+ chi2ZF = 0.0;
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+ if (cseed[iLayer].IsOK()) {
+ cseed[iLayer].SetYref(0,rieman.GetYat(xcl[iLayer]));
+ chi2RF += (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0))
+ * (cseed[iLayer].GetYref(0) - cseed[iLayer].GetYfitR(0));
+ cseed[iLayer].SetYref(1,rieman.GetDYat(xcl[iLayer]));
+ cseed[iLayer].SetZref(0,rieman.GetZat(xcl[iLayer]));
+ chi2ZF += (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz())
+ * (cseed[iLayer].GetZref(0) - cseed[iLayer].GetMeanz());
+ cseed[iLayer].SetZref(1,rieman.GetDZat(xcl[iLayer]));
}
}
- chi2RF/=TMath::Max((nlayers-3.),1.);
- chi2ZF/=TMath::Max((nlayers-3.),1.);
- curv = rieman.GetC();
-
- //
+ chi2RF /= TMath::Max((nlayers - 3.0),1.0);
+ chi2ZF /= TMath::Max((nlayers - 3.0),1.0);
+ curv = rieman.GetC();
+
+ Double_t xref2 = (xcl[2] + xcl[3]) * 0.5; // Middle of the chamber
+ Double_t dzmf = rieman.GetDZat(xref2);
+ Double_t zmf = rieman.GetZat(xref2);
- Double_t xref2 = (xcl[2]+xcl[3])*0.5; // middle of the chamber
- Double_t dzmf = rieman.GetDZat(xref2);
- Double_t zmf = rieman.GetZat(xref2);
//
- // fit hyperplane
+ // Fit hyperplane
//
- Int_t npointsT =0;
+ Int_t npointsT = 0;
fitterTC.ClearPoints();
fitterT2.ClearPoints();
rieman2.Reset();
- for (Int_t iLayer=0; iLayer<6;iLayer++){
- if (!cseed[iLayer].isOK()) continue;
- for (Int_t itime=0;itime<25;itime++){
- if (!cseed[iLayer].fUsable[itime]) continue;
- Double_t x = cseed[iLayer].fX[itime]+cseed[iLayer].fX0-xref2; // x relative to the midle chamber
- Double_t y = cseed[iLayer].fY[itime];
- Double_t z = cseed[iLayer].fZ[itime];
+
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+
+ if (!cseed[iLayer].IsOK()) {
+ continue;
+ }
+
+ for (Int_t itime = 0; itime < 25; itime++) {
+
+ if (!cseed[iLayer].IsUsable(itime)) {
+ continue;
+ }
+ // X relative to the middle chamber
+ Double_t x = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0() - xref2;
+ Double_t y = cseed[iLayer].GetY(itime);
+ Double_t z = cseed[iLayer].GetZ(itime);
// ExB correction to the correction
- // tilted rieman
- //
+ // Tilted rieman
Double_t uvt[6];
- Double_t x2 = cseed[iLayer].fX[itime]+cseed[iLayer].fX0; // global x
- //
- Double_t t = 1./(x2*x2+y*y);
- uvt[1] = t; // t
- uvt[0] = 2.*x2*uvt[1]; // u
- //
- uvt[2] = 2.0*hL[iLayer]*uvt[1];
- uvt[3] = 2.0*hL[iLayer]*x*uvt[1];
- uvt[4] = 2.0*(y+hL[iLayer]*z)*uvt[1];
- //
- Double_t error = 2*0.2*uvt[1];
+ // Global x
+ Double_t x2 = cseed[iLayer].GetX(itime) + cseed[iLayer].GetX0();
+ Double_t t = 1.0 / (x2*x2 + y*y);
+ uvt[1] = t; // t
+ uvt[0] = 2.0 * x2 * uvt[1]; // u
+ uvt[2] = 2.0 * hL[iLayer] * uvt[1];
+ uvt[3] = 2.0 * hL[iLayer] * x * uvt[1];
+ uvt[4] = 2.0 * (y + hL[iLayer]*z) * uvt[1];
+ Double_t error = 2.0 * 0.2 * uvt[1];
fitterT2.AddPoint(uvt,uvt[4],error);
+
//
- // constrained rieman
+ // Constrained rieman
//
- z =cseed[iLayer].fZ[itime];
- uvt[0] = 2.*x2*t; // u
- uvt[1] = 2*hL[iLayer]*x2*uvt[1];
- uvt[2] = 2*(y+hL[iLayer]*(z-GetZ()))*t;
+ z = cseed[iLayer].GetZ(itime);
+ uvt[0] = 2.0 * x2 * t; // u
+ uvt[1] = 2.0 * hL[iLayer] * x2 * uvt[1];
+ uvt[2] = 2.0 * (y + hL[iLayer] * (z - GetZ())) * t;
fitterTC.AddPoint(uvt,uvt[2],error);
- //
rieman2.AddPoint(x2,y,z,1,10);
npointsT++;
+
}
- }
+
+ } // Loop: iLayer
+
rieman2.Update();
fitterTC.Eval();
fitterT2.Eval();
Double_t rpolz0 = fitterT2.GetParameter(3);
Double_t rpolz1 = fitterT2.GetParameter(4);
+
//
- // linear fitter - not possible to make boundaries
- // non accept non possible z and dzdx combination
+ // Linear fitter - not possible to make boundaries
+ // Do not accept non possible z and dzdx combinations
//
- Bool_t acceptablez =kTRUE;
- for (Int_t iLayer=0; iLayer<6;iLayer++){
- if (cseed[iLayer].isOK()){
- Double_t zT2 = rpolz0+rpolz1*(xcl[iLayer] - xref2);
- if (TMath::Abs(cseed[iLayer].fZProb-zT2)>padlength[iLayer]*0.5+1)
+ Bool_t acceptablez = kTRUE;
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+ if (cseed[iLayer].IsOK()) {
+ Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2);
+ if (TMath::Abs(cseed[iLayer].GetZProb() - zT2) > padlength[iLayer] * 0.5 + 1.0) {
acceptablez = kFALSE;
+ }
}
}
- if (!acceptablez){
+ if (!acceptablez) {
fitterT2.FixParameter(3,zmf);
fitterT2.FixParameter(4,dzmf);
fitterT2.Eval();
rpolz0 = fitterT2.GetParameter(3);
rpolz1 = fitterT2.GetParameter(4);
}
- //
- Double_t chi2TR = fitterT2.GetChisquare()/Float_t(npointsT);
- Double_t chi2TC = fitterTC.GetChisquare()/Float_t(npointsT);
- //
+
+ Double_t chi2TR = fitterT2.GetChisquare() / Float_t(npointsT);
+ Double_t chi2TC = fitterTC.GetChisquare() / Float_t(npointsT);
Double_t polz1c = fitterTC.GetParameter(2);
- Double_t polz0c = polz1c*xref2;
- //
+ Double_t polz0c = polz1c * xref2;
Double_t aC = fitterTC.GetParameter(0);
Double_t bC = fitterTC.GetParameter(1);
- Double_t CC = aC/TMath::Sqrt(bC*bC+1.); // curvature
- //
+ Double_t cC = aC / TMath::Sqrt(bC * bC + 1.0); // Curvature
Double_t aR = fitterT2.GetParameter(0);
Double_t bR = fitterT2.GetParameter(1);
Double_t dR = fitterT2.GetParameter(2);
- Double_t CR = 1+bR*bR-dR*aR;
- Double_t dca = 0.;
- if (CR>0){
- dca = -dR/(TMath::Sqrt(1+bR*bR-dR*aR)+TMath::Sqrt(1+bR*bR));
- CR = aR/TMath::Sqrt(CR);
+ Double_t cR = 1.0 + bR*bR - dR*aR;
+ Double_t dca = 0.0;
+ if (cR > 0.0) {
+ dca = -dR / (TMath::Sqrt(1.0 + bR*bR - dR*aR) + TMath::Sqrt(1.0 + bR*bR));
+ cR = aR / TMath::Sqrt(cR);
}
- //
- Double_t chi2ZT2=0, chi2ZTC=0;
- for (Int_t iLayer=0; iLayer<6;iLayer++){
- if (cseed[iLayer].isOK()){
- Double_t zT2 = rpolz0+rpolz1*(xcl[iLayer] - xref2);
- Double_t zTC = polz0c+polz1c*(xcl[iLayer] - xref2);
- chi2ZT2 += TMath::Abs(cseed[iLayer].fMeanz-zT2);
- chi2ZTC += TMath::Abs(cseed[iLayer].fMeanz-zTC);
+
+ Double_t chi2ZT2 = 0.0;
+ Double_t chi2ZTC = 0.0;
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+ if (cseed[iLayer].IsOK()) {
+ Double_t zT2 = rpolz0 + rpolz1 * (xcl[iLayer] - xref2);
+ Double_t zTC = polz0c + polz1c * (xcl[iLayer] - xref2);
+ chi2ZT2 += TMath::Abs(cseed[iLayer].GetMeanz() - zT2);
+ chi2ZTC += TMath::Abs(cseed[iLayer].GetMeanz() - zTC);
}
}
- chi2ZT2/=TMath::Max((nlayers-3.),1.);
- chi2ZTC/=TMath::Max((nlayers-3.),1.);
- //
- //
- //
- AliTRDseed::FitRiemanTilt(cseed, kTRUE);
- Float_t sumdaf = 0;
- for (Int_t iLayer=0;iLayer<6;iLayer++){
- if (cseed[iLayer].isOK())
- sumdaf += TMath::Abs((cseed[iLayer].fYfit[1]-cseed[iLayer].fYref[1])/cseed[iLayer].fSigmaY2);
- }
- sumdaf /= Float_t (nlayers-2.);
+ chi2ZT2 /= TMath::Max((nlayers - 3.0),1.0);
+ chi2ZTC /= TMath::Max((nlayers - 3.0),1.0);
+
+ AliTRDseed::FitRiemanTilt(cseed,kTRUE);
+ Float_t sumdaf = 0.0;
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+ if (cseed[iLayer].IsOK()) {
+ sumdaf += TMath::Abs((cseed[iLayer].GetYfit(1) - cseed[iLayer].GetYref(1))
+ / cseed[iLayer].GetSigmaY2());
+ }
+ }
+ sumdaf /= Float_t (nlayers - 2.0);
+
//
- // likelihoods for full track
+ // Likelihoods for full track
//
- Double_t likezf = TMath::Exp(-chi2ZF*0.14);
- Double_t likechi2C = TMath::Exp(-chi2TC*0.677);
- Double_t likechi2TR = TMath::Exp(-chi2TR*0.78);
- Double_t likeaf = TMath::Exp(-sumdaf*3.23);
- seedquality2[registered] = likezf*likechi2TR*likeaf;
+ Double_t likezf = TMath::Exp(-chi2ZF * 0.14);
+ Double_t likechi2C = TMath::Exp(-chi2TC * 0.677);
+ Double_t likechi2TR = TMath::Exp(-chi2TR * 0.78);
+ Double_t likeaf = TMath::Exp(-sumdaf * 3.23);
+ seedquality2[registered] = likezf * likechi2TR * likeaf;
+
+ // Still needed ????
// Bool_t isGold = kFALSE;
//
// if (nlayers == 6 && TMath::Log(0.000000001+seedquality2[index])<-5.) isGold =kTRUE; // gold
// if (nlayers == findable && TMath::Log(0.000000001+seedquality2[index])<-4.) isGold =kTRUE; // gold
// if (isGold &&nusedf<10){
// for (Int_t jLayer=0;jLayer<6;jLayer++){
-// if ( seed[index][jLayer].isOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.1)
+// if ( seed[index][jLayer].IsOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.1)
// seed[index][jLayer].UseClusters(); //sign gold
// }
// }
- //
- //
- //
- Int_t index0=0;
- if (!cseed[0].isOK()){
+
+ Int_t index0 = 0;
+ if (!cseed[0].IsOK()) {
index0 = 1;
- if (!cseed[1].isOK()) index0 = 2;
+ if (!cseed[1].IsOK()) {
+ index0 = 2;
+ }
}
- seedparams[registered][0] = cseed[index0].fX0;
- seedparams[registered][1] = cseed[index0].fYref[0];
- seedparams[registered][2] = cseed[index0].fZref[0];
- seedparams[registered][5] = CR;
- seedparams[registered][3] = cseed[index0].fX0*CR - TMath::Sin(TMath::ATan(cseed[0].fYref[1]));
- seedparams[registered][4] = cseed[index0].fZref[1]/
- TMath::Sqrt(1+cseed[index0].fYref[1]*cseed[index0].fYref[1]);
+ seedparams[registered][0] = cseed[index0].GetX0();
+ seedparams[registered][1] = cseed[index0].GetYref(0);
+ seedparams[registered][2] = cseed[index0].GetZref(0);
+ seedparams[registered][5] = cR;
+ seedparams[registered][3] = cseed[index0].GetX0() * cR - TMath::Sin(TMath::ATan(cseed[0].GetYref(1)));
+ seedparams[registered][4] = cseed[index0].GetZref(1)
+ / TMath::Sqrt(1.0 + cseed[index0].GetYref(1) * cseed[index0].GetYref(1));
seedparams[registered][6] = ns;
- //
- //
- Int_t labels[12], outlab[24];
- Int_t nlab=0;
- for (Int_t iLayer=0;iLayer<6;iLayer++){
- if (!cseed[iLayer].isOK()) continue;
- if (cseed[iLayer].fLabels[0]>=0) {
- labels[nlab] = cseed[iLayer].fLabels[0];
+
+ Int_t labels[12];
+ Int_t outlab[24];
+ Int_t nlab = 0;
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+ if (!cseed[iLayer].IsOK()) {
+ continue;
+ }
+ if (cseed[iLayer].GetLabels(0) >= 0) {
+ labels[nlab] = cseed[iLayer].GetLabels(0);
nlab++;
}
- if (cseed[iLayer].fLabels[1]>=0) {
- labels[nlab] = cseed[iLayer].fLabels[1];
+ if (cseed[iLayer].GetLabels(1) >= 0) {
+ labels[nlab] = cseed[iLayer].GetLabels(1);
nlab++;
- }
+ }
}
Freq(nlab,labels,outlab,kFALSE);
- Int_t label = outlab[0];
- Int_t frequency = outlab[1];
- for (Int_t iLayer=0;iLayer<6;iLayer++){
- cseed[iLayer].fFreq = frequency;
- cseed[iLayer].fC = CR;
- cseed[iLayer].fCC = CC;
- cseed[iLayer].fChi2 = chi2TR;
- cseed[iLayer].fChi2Z = chi2ZF;
+ Int_t label = outlab[0];
+ Int_t frequency = outlab[1];
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+ cseed[iLayer].SetFreq(frequency);
+ cseed[iLayer].SetC(cR);
+ cseed[iLayer].SetCC(cC);
+ cseed[iLayer].SetChi2(chi2TR);
+ cseed[iLayer].SetChi2Z(chi2ZF);
}
- //
- if (1||(!isFake)){ //debugging print
+
+ // Debugging print
+ if (1 || (!isFake)) {
Float_t zvertex = GetZ();
- TTreeSRedirector& cstream = *fDebugStreamer;
- cstream<<"Seeds1"<<
- "isFake="<<isFake<<
- "Vertex="<<zvertex<<
- "Rieman2.="<<&rieman2<<
- "Rieman.="<<&rieman<<
- "Xref="<<xref<<
- "X0="<<xcl[0]<<
- "X1="<<xcl[1]<<
- "X2="<<xcl[2]<<
- "X3="<<xcl[3]<<
- "X4="<<xcl[4]<<
- "X5="<<xcl[5]<<
- "Chi2R="<<chi2R<<
- "Chi2Z="<<chi2Z<<
- "Chi2RF="<<chi2RF<< //chi2 of trackletes on full track
- "Chi2ZF="<<chi2ZF<< //chi2 z on tracklets on full track
- "Chi2ZT2="<<chi2ZT2<< //chi2 z on tracklets on full track - rieman tilt
- "Chi2ZTC="<<chi2ZTC<< //chi2 z on tracklets on full track - rieman tilt const
- //
- "Chi2TR="<<chi2TR<< //chi2 without vertex constrain
- "Chi2TC="<<chi2TC<< //chi2 with vertex constrain
- "C="<<curv<< // non constrained - no tilt correction
- "DR="<<dR<< // DR parameter - tilt correction
- "DCA="<<dca<< // DCA - tilt correction
- "CR="<<CR<< // non constrained curvature - tilt correction
- "CC="<<CC<< // constrained curvature
- "Polz0="<<polz0c<<
- "Polz1="<<polz1c<<
- "RPolz0="<<rpolz0<<
- "RPolz1="<<rpolz1<<
- "Ncl="<<nclusters<<
- "Nlayers="<<nlayers<<
- "NUsedS="<<nusedCl<<
- "NUsed="<<nusedf<<
- "Findable="<<findable<<
- "Like="<<like<<
- "LikePrim="<<likePrim<<
- "Likechi2C="<<likechi2C<<
- "Likechi2TR="<<likechi2TR<<
- "Likezf="<<likezf<<
- "LikeF="<<seedquality2[registered]<<
- "S0.="<<&cseed[0]<<
- "S1.="<<&cseed[1]<<
- "S2.="<<&cseed[2]<<
- "S3.="<<&cseed[3]<<
- "S4.="<<&cseed[4]<<
- "S5.="<<&cseed[5]<<
- "SB0.="<<&seedb[0]<<
- "SB1.="<<&seedb[1]<<
- "SB2.="<<&seedb[2]<<
- "SB3.="<<&seedb[3]<<
- "SB4.="<<&seedb[4]<<
- "SB5.="<<&seedb[5]<<
- "Label="<<label<<
- "Freq="<<frequency<<
- "sLayer="<<sLayer<<
- "\n";
+ TTreeSRedirector &cstream = *fDebugStreamer;
+ if (AliTRDReconstructor::StreamLevel() > 0) {
+ cstream << "Seeds1"
+ << "isFake=" << isFake
+ << "Vertex=" << zvertex
+ << "Rieman2.=" << &rieman2
+ << "Rieman.=" << &rieman
+ << "Xref=" << xref
+ << "X0=" << xcl[0]
+ << "X1=" << xcl[1]
+ << "X2=" << xcl[2]
+ << "X3=" << xcl[3]
+ << "X4=" << xcl[4]
+ << "X5=" << xcl[5]
+ << "Chi2R=" << chi2R
+ << "Chi2Z=" << chi2Z
+ << "Chi2RF=" << chi2RF // Chi2 of trackletes on full track
+ << "Chi2ZF=" << chi2ZF // Chi2 z on tracklets on full track
+ << "Chi2ZT2=" << chi2ZT2 // Chi2 z on tracklets on full track - rieman tilt
+ << "Chi2ZTC=" << chi2ZTC // Chi2 z on tracklets on full track - rieman tilt const
+ << "Chi2TR=" << chi2TR // Chi2 without vertex constrain
+ << "Chi2TC=" << chi2TC // Chi2 with vertex constrain
+ << "C=" << curv // Non constrained - no tilt correction
+ << "DR=" << dR // DR parameter - tilt correction
+ << "DCA=" << dca // DCA - tilt correction
+ << "CR=" << cR // Non constrained curvature - tilt correction
+ << "CC=" << cC // Constrained curvature
+ << "Polz0=" << polz0c
+ << "Polz1=" << polz1c
+ << "RPolz0=" << rpolz0
+ << "RPolz1=" << rpolz1
+ << "Ncl=" << nclusters
+ << "Nlayers=" << nlayers
+ << "NUsedS=" << nusedCl
+ << "NUsed=" << nusedf
+ << "Findable=" << findable
+ << "Like=" << like
+ << "LikePrim=" << likePrim
+ << "Likechi2C=" << likechi2C
+ << "Likechi2TR=" << likechi2TR
+ << "Likezf=" << likezf
+ << "LikeF=" << seedquality2[registered]
+ << "S0.=" << &cseed[0]
+ << "S1.=" << &cseed[1]
+ << "S2.=" << &cseed[2]
+ << "S3.=" << &cseed[3]
+ << "S4.=" << &cseed[4]
+ << "S5.=" << &cseed[5]
+ << "SB0.=" << &seedb[0]
+ << "SB1.=" << &seedb[1]
+ << "SB2.=" << &seedb[2]
+ << "SB3.=" << &seedb[3]
+ << "SB4.=" << &seedb[4]
+ << "SB5.=" << &seedb[5]
+ << "Label=" << label
+ << "Freq=" << frequency
+ << "sLayer=" << sLayer
+ << "\n";
+ }
}
- if (registered<maxseed-1) {
+
+ if (registered<kMaxSeed - 1) {
registered++;
cseed = seed[registered];
}
- }// end of loop over layer 1
- } // end of loop over layer 0
- } // end of loop over layer 3
- } // end of loop over seeding time bins
+
+ } // End of loop over layer 1
+
+ } // End of loop over layer 0
+
+ } // End of loop over layer 3
+
+ } // End of loop over seeding time bins
+
//
- // choos best
+ // Choose best
//
+
TMath::Sort(registered,seedquality2,sort,kTRUE);
- Bool_t signedseed[maxseed];
- for (Int_t i=0;i<registered;i++){
- signedseed[i]= kFALSE;
+ Bool_t signedseed[kMaxSeed];
+ for (Int_t i = 0; i < registered; i++) {
+ signedseed[i] = kFALSE;
}
- for (Int_t iter=0; iter<5; iter++){
- for (Int_t iseed=0;iseed<registered;iseed++){
+
+ for (Int_t iter = 0; iter < 5; iter++) {
+
+ for (Int_t iseed = 0; iseed < registered; iseed++) {
+
Int_t index = sort[iseed];
- if (signedseed[index]) continue;
+ if (signedseed[index]) {
+ continue;
+ }
Int_t labelsall[1000];
- Int_t nlabelsall=0;
- Int_t naccepted=0;;
- Int_t sLayer = seedlayer[index];
- Int_t ncl = 0;
- Int_t nused = 0;
- Int_t nlayers =0;
+ Int_t nlabelsall = 0;
+ Int_t naccepted = 0;;
+ Int_t sLayer = seedlayer[index];
+ Int_t ncl = 0;
+ Int_t nused = 0;
+ Int_t nlayers = 0;
Int_t findable = 0;
- for (Int_t jLayer=0;jLayer<6;jLayer++){
- if (TMath::Abs(seed[index][jLayer].fYref[0]/xcl[jLayer])<0.15)
+
+ for (Int_t jLayer = 0; jLayer < 6; jLayer++) {
+
+ if (TMath::Abs(seed[index][jLayer].GetYref(0) / xcl[jLayer]) < 0.15) {
findable++;
- if (seed[index][jLayer].isOK()){
+ }
+ if (seed[index][jLayer].IsOK()) {
seed[index][jLayer].UpdateUsed();
- ncl +=seed[index][jLayer].fN2;
- nused +=seed[index][jLayer].fNUsed;
+ ncl +=seed[index][jLayer].GetN2();
+ nused +=seed[index][jLayer].GetNUsed();
nlayers++;
- //cooking label
- for (Int_t itime=0;itime<25;itime++){
- if (seed[index][jLayer].fUsable[itime]){
+ // Cooking label
+ for (Int_t itime = 0; itime < 25; itime++) {
+ if (seed[index][jLayer].IsUsable(itime)) {
naccepted++;
- for (Int_t ilab=0;ilab<3;ilab++){
- Int_t tindex = seed[index][jLayer].fClusters[itime]->GetLabel(ilab);
- if (tindex>=0){
+ for (Int_t ilab = 0; ilab < 3; ilab++) {
+ Int_t tindex = seed[index][jLayer].GetClusters(itime)->GetLabel(ilab);
+ if (tindex >= 0) {
labelsall[nlabelsall] = tindex;
nlabelsall++;
}
}
}
}
+
}
- //
- if (nused>30) continue;
- //
- if (iter==0){
- if (nlayers<6) continue;
- if (TMath::Log(0.000000001+seedquality2[index])<-5.) continue; // gold
+
+ if (nused > 30) {
+ continue;
+ }
+
+ if (iter == 0) {
+ if (nlayers < 6) {
+ continue;
+ }
+ if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) {
+ continue; // Gold
+ }
}
- //
- if (iter==1){
- if (nlayers<findable) continue;
- if (TMath::Log(0.000000001+seedquality2[index])<-4.) continue; //
+
+ if (iter == 1) {
+ if (nlayers < findable) {
+ continue;
+ }
+ if (TMath::Log(0.000000001+seedquality2[index]) < -4.0) {
+ continue;
+ }
}
- //
- //
- if (iter==2){
- if (nlayers==findable || nlayers==6) continue;
- if (TMath::Log(0.000000001+seedquality2[index])<-6.) continue;
+
+ if (iter == 2) {
+ if ((nlayers == findable) ||
+ (nlayers == 6)) {
+ continue;
+ }
+ if (TMath::Log(0.000000001+seedquality2[index]) < -6.0) {
+ continue;
+ }
}
- //
- if (iter==3){
- if (TMath::Log(0.000000001+seedquality2[index])<-5.) continue;
+
+ if (iter == 3) {
+ if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) {
+ continue;
+ }
}
- //
- if (iter==4){
- if (TMath::Log(0.000000001+seedquality2[index])-nused/(nlayers-3.)<-15.) continue;
+
+ if (iter == 4) {
+ if (TMath::Log(0.000000001+seedquality2[index]) - nused/(nlayers-3.0) < -15.0) {
+ continue;
+ }
}
- //
+
signedseed[index] = kTRUE;
- //
- Int_t labels[1000], outlab[1000];
- Int_t nlab=0;
- for (Int_t iLayer=0;iLayer<6;iLayer++){
- if (seed[index][iLayer].isOK()){
- if (seed[index][iLayer].fLabels[0]>=0) {
- labels[nlab] = seed[index][iLayer].fLabels[0];
+
+ Int_t labels[1000];
+ Int_t outlab[1000];
+ Int_t nlab = 0;
+ for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
+ if (seed[index][iLayer].IsOK()) {
+ if (seed[index][iLayer].GetLabels(0) >= 0) {
+ labels[nlab] = seed[index][iLayer].GetLabels(0);
nlab++;
}
- if (seed[index][iLayer].fLabels[1]>=0) {
- labels[nlab] = seed[index][iLayer].fLabels[1];
+ if (seed[index][iLayer].GetLabels(1) >= 0) {
+ labels[nlab] = seed[index][iLayer].GetLabels(1);
nlab++;
- }
- }
+ }
+ }
}
Freq(nlab,labels,outlab,kFALSE);
- Int_t label = outlab[0];
- Int_t frequency = outlab[1];
+ Int_t label = outlab[0];
+ Int_t frequency = outlab[1];
Freq(nlabelsall,labelsall,outlab,kFALSE);
- Int_t label1 = outlab[0];
- Int_t label2 = outlab[2];
- Float_t fakeratio = (naccepted-outlab[1])/Float_t(naccepted);
- Float_t ratio = Float_t(nused)/Float_t(ncl);
- if (ratio<0.25){
- for (Int_t jLayer=0;jLayer<6;jLayer++){
- if ( seed[index][jLayer].isOK()&&TMath::Abs(seed[index][jLayer].fYfit[1]-seed[index][jLayer].fYfit[1])<0.2 )
- seed[index][jLayer].UseClusters(); //sign gold
+ Int_t label1 = outlab[0];
+ Int_t label2 = outlab[2];
+ Float_t fakeratio = (naccepted - outlab[1]) / Float_t(naccepted);
+ Float_t ratio = Float_t(nused) / Float_t(ncl);
+ if (ratio < 0.25) {
+ for (Int_t jLayer = 0; jLayer < 6; jLayer++) {
+ if ((seed[index][jLayer].IsOK()) &&
+ (TMath::Abs(seed[index][jLayer].GetYfit(1) - seed[index][jLayer].GetYfit(1)) < 0.2)) {
+ seed[index][jLayer].UseClusters(); // Sign gold
+ }
}
}
- //
+
Int_t eventNr = esd->GetEventNumber();
- TTreeSRedirector& cstream = *fDebugStreamer;
+ TTreeSRedirector &cstream = *fDebugStreamer;
+
//
- // register seed
+ // Register seed
//
- AliTRDtrack * track = RegisterSeed(seed[index],seedparams[index]);
- AliTRDtrack dummy;
- if (!track) track=&dummy;
- else{
+ AliTRDtrack *track = RegisterSeed(seed[index],seedparams[index]);
+ AliTRDtrack dummy;
+ if (!track) {
+ track = &dummy;
+ }
+ else {
AliESDtrack esdtrack;
- esdtrack.UpdateTrackParams(track, AliESDtrack::kTRDout);
+ esdtrack.UpdateTrackParams(track,AliESDtrack::kTRDout);
esdtrack.SetLabel(label);
esd->AddTrack(&esdtrack);
- TTreeSRedirector& cstream = *fDebugStreamer;
- cstream<<"Tracks"<<
- "EventNr="<<eventNr<<
- "ESD.="<<&esdtrack<<
- "trd.="<<track<<
- "trdback.="<<track<<
- "\n";
+ TTreeSRedirector &cstream = *fDebugStreamer;
+ if (AliTRDReconstructor::StreamLevel() > 0) {
+ cstream << "Tracks"
+ << "EventNr=" << eventNr
+ << "ESD.=" << &esdtrack
+ << "trd.=" << track
+ << "trdback.=" << track
+ << "\n";
+ }
}
- cstream<<"Seeds2"<<
- "Iter="<<iter<<
- "Track.="<<track<<
- "Like="<<seedquality[index]<<
- "LikeF="<<seedquality2[index]<<
- "S0.="<<&seed[index][0]<<
- "S1.="<<&seed[index][1]<<
- "S2.="<<&seed[index][2]<<
- "S3.="<<&seed[index][3]<<
- "S4.="<<&seed[index][4]<<
- "S5.="<<&seed[index][5]<<
- "Label="<<label<<
- "Label1="<<label1<<
- "Label2="<<label2<<
- "FakeRatio="<<fakeratio<<
- "Freq="<<frequency<<
- "Ncl="<<ncl<<
- "Nlayers="<<nlayers<<
- "Findable="<<findable<<
- "NUsed="<<nused<<
- "sLayer="<<sLayer<<
- "EventNr="<<eventNr<<
- "\n";
- }
- }
- } // end of loop over sectors
+ if (AliTRDReconstructor::StreamLevel() > 0) {
+ cstream << "Seeds2"
+ << "Iter=" << iter
+ << "Track.=" << track
+ << "Like=" << seedquality[index]
+ << "LikeF=" << seedquality2[index]
+ << "S0.=" << &seed[index][0]
+ << "S1.=" << &seed[index][1]
+ << "S2.=" << &seed[index][2]
+ << "S3.=" << &seed[index][3]
+ << "S4.=" << &seed[index][4]
+ << "S5.=" << &seed[index][5]
+ << "Label=" << label
+ << "Label1=" << label1
+ << "Label2=" << label2
+ << "FakeRatio=" << fakeratio
+ << "Freq=" << frequency
+ << "Ncl=" << ncl
+ << "Nlayers=" << nlayers
+ << "Findable=" << findable
+ << "NUsed=" << nused
+ << "sLayer=" << sLayer
+ << "EventNr=" << eventNr
+ << "\n";
+ }
+
+ } // Loop: iseed
+
+ } // Loop: iter
+
+ } // End of loop over sectors
+
delete [] pseed;
+
}
//_____________________________________________________________________________
-Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *ClusterTree) const
+Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *clusterTree) const
{
//
// Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0)
// from the file. The names of the cluster tree and branches
// should match the ones used in AliTRDclusterizer::WriteClusters()
//
- Int_t nsize = Int_t(ClusterTree->GetTotBytes()/(sizeof(AliTRDcluster)));
+
+ Int_t nsize = Int_t(clusterTree->GetTotBytes() / (sizeof(AliTRDcluster)));
TObjArray *clusterArray = new TObjArray(nsize+1000);
- TBranch *branch=ClusterTree->GetBranch("TRDcluster");
+ TBranch *branch = clusterTree->GetBranch("TRDcluster");
if (!branch) {
- Error("ReadClusters","Can't get the branch !");
+ AliError("Can't get the branch !");
return 1;
}
branch->SetAddress(&clusterArray);
- Int_t nEntries = (Int_t) ClusterTree->GetEntries();
- // printf("found %d entries in %s.\n",nEntries,ClusterTree->GetName());
-
// Loop through all entries in the tree
- Int_t nbytes = 0;
+ Int_t nEntries = (Int_t) clusterTree->GetEntries();
+ Int_t nbytes = 0;
AliTRDcluster *c = 0;
- // printf("\n");
for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
// Import the tree
- nbytes += ClusterTree->GetEvent(iEntry);
+ nbytes += clusterTree->GetEvent(iEntry);
// Get the number of points in the detector
Int_t nCluster = clusterArray->GetEntriesFast();
-// printf("\r Read %d clusters from entry %d", nCluster, iEntry);
// Loop through all TRD digits
for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) {
- c = (AliTRDcluster*)clusterArray->UncheckedAt(iCluster);
+ c = (AliTRDcluster *) clusterArray->UncheckedAt(iCluster);
AliTRDcluster *co = c;
array->AddLast(co);
- // delete clusterArray->RemoveAt(iCluster);
clusterArray->RemoveAt(iCluster);
}
+
}
-// cout<<"Allocated"<<nsize<<"\tLoaded"<<array->GetEntriesFast()<<"\n";
delete clusterArray;
return 0;
+
}
-//__________________________________________________________________
-Bool_t AliTRDtracker::GetTrackPoint(Int_t index, AliTrackPoint& p) const
+//_____________________________________________________________________________
+Bool_t AliTRDtracker::GetTrackPoint(Int_t index, AliTrackPoint &p) const
{
//
// Get track space point with index i
// Origin: C.Cheshkov
//
- AliTRDcluster *cl = (AliTRDcluster*)fClusters->UncheckedAt(index);
- Int_t idet = cl->GetDetector();
- Int_t isector = fGeom->GetSector(idet);
- Int_t ichamber= fGeom->GetChamber(idet);
- Int_t iplan = fGeom->GetPlane(idet);
+ AliTRDcluster *cl = (AliTRDcluster *) fClusters->UncheckedAt(index);
+ Int_t idet = cl->GetDetector();
+ Int_t isector = fGeom->GetSector(idet);
+ Int_t ichamber = fGeom->GetChamber(idet);
+ Int_t iplan = fGeom->GetPlane(idet);
Double_t local[3];
- local[0]=GetX(isector,iplan,cl->GetLocalTimeBin());
- local[1]=cl->GetY();
- local[2]=cl->GetZ();
+ local[0] = GetX(isector,iplan,cl->GetLocalTimeBin());
+ local[1] = cl->GetY();
+ local[2] = cl->GetZ();
Double_t global[3];
fGeom->RotateBack(idet,local,global);
p.SetXYZ(global[0],global[1],global[2]);
iLayer = AliAlignObj::kTRD6;
break;
};
- Int_t modId = isector*fGeom->Ncham()+ichamber;
+ Int_t modId = isector * fGeom->Ncham() + ichamber;
UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,modId);
p.SetVolumeID(volid);
}
-//__________________________________________________________________
-void AliTRDtracker::CookLabel(AliKalmanTrack* pt, Float_t wrong) const
+//_____________________________________________________________________________
+void AliTRDtracker::CookLabel(AliKalmanTrack *pt, Float_t wrong) const
{
//
// This cooks a label. Mmmmh, smells good...
//
- Int_t label=123456789, index, i, j;
- Int_t ncl=pt->GetNumberOfClusters();
- const Int_t kRange = fTrSec[0]->GetOuterTimeBin()+1;
+ Int_t label = 123456789;
+ Int_t index;
+ Int_t i;
+ Int_t j;
+ Int_t ncl = pt->GetNumberOfClusters();
+
+ const Int_t kRange = fTrSec[0]->GetOuterTimeBin() + 1;
Bool_t labelAdded;
- // Int_t s[kRange][2];
Int_t **s = new Int_t* [kRange];
- for (i=0; i<kRange; i++) {
+ for (i = 0; i < kRange; i++) {
s[i] = new Int_t[2];
}
- for (i=0; i<kRange; i++) {
- s[i][0]=-1;
- s[i][1]=0;
+ for (i = 0; i < kRange; i++) {
+ s[i][0] = -1;
+ s[i][1] = 0;
}
- Int_t t0,t1,t2;
- for (i=0; i<ncl; i++) {
- index=pt->GetClusterIndex(i);
- AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(index);
+ Int_t t0;
+ Int_t t1;
+ Int_t t2;
+
+ for (i = 0; i < ncl; i++) {
+ index = pt->GetClusterIndex(i);
+ AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index);
t0=c->GetLabel(0);
t1=c->GetLabel(1);
t2=c->GetLabel(2);
}
- for (i=0; i<ncl; i++) {
- index=pt->GetClusterIndex(i);
- AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(index);
- for (Int_t k=0; k<3; k++) {
- label=c->GetLabel(k);
- labelAdded=kFALSE; j=0;
+ for (i = 0; i < ncl; i++) {
+ index = pt->GetClusterIndex(i);
+ AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index);
+ for (Int_t k = 0; k < 3; k++) {
+ label = c->GetLabel(k);
+ labelAdded = kFALSE;
+ j = 0;
if (label >= 0) {
- while ( (!labelAdded) && ( j < kRange ) ) {
- if (s[j][0]==label || s[j][1]==0) {
- s[j][0]=label;
- s[j][1]=s[j][1]+1;
- labelAdded=kTRUE;
+ while ((!labelAdded) && (j < kRange)) {
+ if ((s[j][0] == label) ||
+ (s[j][1] == 0)) {
+ s[j][0] = label;
+ s[j][1] = s[j][1] + 1;
+ labelAdded = kTRUE;
}
j++;
}
}
}
- Int_t max=0;
+ Int_t max = 0;
label = -123456789;
- for (i=0; i<kRange; i++) {
- if (s[i][1]>max) {
- max=s[i][1]; label=s[i][0];
+ for (i = 0; i < kRange; i++) {
+ if (s[i][1] > max) {
+ max = s[i][1];
+ label = s[i][0];
}
}
- for (i=0; i<kRange; i++) {
+ for (i = 0; i < kRange; i++) {
delete []s[i];
}
delete []s;
- if ((1.- Float_t(max)/ncl) > wrong) label=-label;
+ if ((1.0 - Float_t(max)/ncl) > wrong) {
+ label = -label;
+ }
pt->SetLabel(label);
}
-
-//__________________________________________________________________
-void AliTRDtracker::UseClusters(const AliKalmanTrack* t, Int_t from) const
+//_____________________________________________________________________________
+void AliTRDtracker::UseClusters(const AliKalmanTrack *t, Int_t from) const
{
//
// Use clusters, but don't abuse them!
//
- const Float_t kmaxchi2 =18;
- const Float_t kmincl =10;
- AliTRDtrack * track = (AliTRDtrack*)t;
- //
- Int_t ncl=t->GetNumberOfClusters();
- for (Int_t i=from; i<ncl; i++) {
- Int_t index = t->GetClusterIndex(i);
- AliTRDcluster *c=(AliTRDcluster*)fClusters->UncheckedAt(index);
- //
+
+ const Float_t kmaxchi2 = 18;
+ const Float_t kmincl = 10;
+
+ AliTRDtrack *track = (AliTRDtrack *) t;
+
+ Int_t ncl = t->GetNumberOfClusters();
+ for (Int_t i = from; i < ncl; i++) {
+ Int_t index = t->GetClusterIndex(i);
+ AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index);
Int_t iplane = fGeom->GetPlane(c->GetDetector());
- if (track->fTracklets[iplane].GetChi2()>kmaxchi2) continue;
- if (track->fTracklets[iplane].GetN()<kmincl) continue;
- if (!(c->IsUsed())) c->Use();
+ if (track->GetTracklets(iplane).GetChi2() > kmaxchi2) {
+ continue;
+ }
+ if (track->GetTracklets(iplane).GetN() < kmincl) {
+ continue;
+ }
+ if (!(c->IsUsed())) {
+ c->Use();
+ }
}
-}
+}
-//_____________________________________________________________________
+//_____________________________________________________________________________
Double_t AliTRDtracker::ExpectedSigmaY2(Double_t , Double_t , Double_t ) const
{
+ //
// Parametrised "expected" error of the cluster reconstruction in Y
+ //
Double_t s = 0.08 * 0.08;
return s;
+
}
-//_____________________________________________________________________
+//_____________________________________________________________________________
Double_t AliTRDtracker::ExpectedSigmaZ2(Double_t , Double_t ) const
{
+ //
// Parametrised "expected" error of the cluster reconstruction in Z
+ //
- Double_t s = 9 * 9 /12.;
+ Double_t s = 9.0 * 9.0 / 12.0;
return s;
+
}
-//_____________________________________________________________________
+//_____________________________________________________________________________
Double_t AliTRDtracker::GetX(Int_t sector, Int_t plane, Int_t localTB) const
{
//
//
Int_t index = fTrSec[sector]->CookTimeBinIndex(plane, localTB);
- Int_t pl = fTrSec[sector]->GetLayerNumber(index);
+ Int_t pl = fTrSec[sector]->GetLayerNumber(index);
+
return fTrSec[sector]->GetLayer(pl)->GetX();
}
-
-//_______________________________________________________
-AliTRDtracker::AliTRDpropagationLayer::AliTRDpropagationLayer(Double_t x,
- Double_t dx, Double_t rho, Double_t radLength, Int_t tbIndex, Int_t plane)
+//_____________________________________________________________________________
+AliTRDtracker::AliTRDpropagationLayer
+ ::AliTRDpropagationLayer(Double_t x, Double_t dx, Double_t rho
+ , Double_t radLength, Int_t tbIndex, Int_t plane)
+ :fN(0)
+ ,fSec(0)
+ ,fClusters(NULL)
+ ,fIndex(NULL)
+ ,fX(x)
+ ,fdX(dx)
+ ,fRho(rho)
+ ,fX0(radLength)
+ ,fTimeBinIndex(tbIndex)
+ ,fPlane(plane)
+ ,fYmax(0)
+ ,fYmaxSensitive(0)
+ ,fHole(kFALSE)
+ ,fHoleZc(0)
+ ,fHoleZmax(0)
+ ,fHoleYc(0)
+ ,fHoleYmax(0)
+ ,fHoleRho(0)
+ ,fHoleX0(0)
{
//
// AliTRDpropagationLayer constructor
//
- fN = 0; fX = x; fdX = dx; fRho = rho; fX0 = radLength;
- fClusters = NULL; fIndex = NULL; fTimeBinIndex = tbIndex;
- fPlane = plane;
-
- for(Int_t i=0; i < (Int_t) kZones; i++) {
- fZc[i]=0; fZmax[i] = 0;
+ for (Int_t i = 0; i < (Int_t) kZones; i++) {
+ fZc[i] = 0;
+ fZmax[i] = 0;
}
- fYmax = 0;
-
- if(fTimeBinIndex >= 0) {
+ if (fTimeBinIndex >= 0) {
fClusters = new AliTRDcluster*[kMaxClusterPerTimeBin];
- fIndex = new UInt_t[kMaxClusterPerTimeBin];
+ fIndex = new UInt_t[kMaxClusterPerTimeBin];
}
- for (Int_t i=0;i<5;i++) fIsHole[i] = kFALSE;
- fHole = kFALSE;
- fHoleZc = 0;
- fHoleZmax = 0;
- fHoleYc = 0;
- fHoleYmax = 0;
- fHoleRho = 0;
- fHoleX0 = 0;
+ for (Int_t i = 0; i < 5; i++) {
+ fIsHole[i] = kFALSE;
+ }
}
-//_______________________________________________________
-void AliTRDtracker::AliTRDpropagationLayer::SetHole(
- Double_t Zmax, Double_t Ymax, Double_t rho,
- Double_t radLength, Double_t Yc, Double_t Zc)
+//_____________________________________________________________________________
+void AliTRDtracker::AliTRDpropagationLayer
+ ::SetHole(Double_t Zmax, Double_t Ymax, Double_t rho
+ , Double_t radLength, Double_t Yc, Double_t Zc)
{
//
// Sets hole in the layer
//
- fHole = kTRUE;
- fHoleZc = Zc;
+
+ fHole = kTRUE;
+ fHoleZc = Zc;
fHoleZmax = Zmax;
- fHoleYc = Yc;
+ fHoleYc = Yc;
fHoleYmax = Ymax;
- fHoleRho = rho;
- fHoleX0 = radLength;
+ fHoleRho = rho;
+ fHoleX0 = radLength;
+
}
-
-//_______________________________________________________
-AliTRDtracker::AliTRDtrackingSector::AliTRDtrackingSector(AliTRDgeometry* geo, Int_t gs)
+//_____________________________________________________________________________
+AliTRDtracker::AliTRDtrackingSector
+ ::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs)
+ :fN(0)
+ ,fGeom(geo)
+ ,fGeomSector(gs)
{
//
// AliTRDtrackingSector Constructor
//
+
AliTRDpadPlane *padPlane = 0;
+ AliTRDpropagationLayer *ppl = 0;
- fGeom = geo;
- fGeomSector = gs;
- fN = 0;
- //
- // get holes description from geometry
+ // Get holes description from geometry
Bool_t holes[AliTRDgeometry::kNcham];
- //printf("sector\t%d\t",gs);
- for (Int_t icham=0; icham<AliTRDgeometry::kNcham;icham++){
+ for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) {
holes[icham] = fGeom->IsHole(0,icham,gs);
- //printf("%d",holes[icham]);
}
- //printf("\n");
- for(UInt_t i=0; i < kMaxTimeBinIndex; i++) fTimeBinIndex[i] = -1;
-
-
- AliTRDpropagationLayer* ppl;
+ for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) {
+ fTimeBinIndex[i] = -1;
+ }
- Double_t x, dx, rho, radLength;
- // Int_t steps;
+ Double_t x;
+ Double_t dx;
+ Double_t rho;
+ Double_t radLength;
- // add layers for each of the planes
- Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region
+ // Add layers for each of the planes
+ Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region
//Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region
+ const Int_t kNchambers = AliTRDgeometry::Ncham();
Int_t tbIndex;
- const Int_t kNchambers = AliTRDgeometry::Ncham();
- Double_t ymax = 0;
- Double_t ymaxsensitive=0;
- Double_t *zc = new Double_t[kNchambers];
- Double_t *zmax = new Double_t[kNchambers];
+ Double_t ymax = 0;
+ Double_t ymaxsensitive = 0;
+ Double_t *zc = new Double_t[kNchambers];
+ Double_t *zmax = new Double_t[kNchambers];
Double_t *zmaxsensitive = new Double_t[kNchambers];
- AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
- if (!commonParam)
- {
- printf("<AliTRDtracker::AliTRDtrackingSector::AliTRDtrackingSector> ");
- printf("Could not get common params\n");
+ AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance();
+ if (!commonParam) {
+ AliErrorGeneral("AliTRDtrackingSector::Ctor"
+ ,"Could not get common parameters\n");
return;
}
- for(Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) {
-
- ymax = fGeom->GetChamberWidth(plane)/2.;
- // Modidified for new pad plane class, 22.04.05 (C.B.)
- padPlane = commonParam->GetPadPlane(plane,0);
- ymaxsensitive = (padPlane->GetColSize(1)*padPlane->GetNcols()-4)/2.;
- for(Int_t ch = 0; ch < kNchambers; ch++) {
- zmax[ch] = fGeom->GetChamberLength(plane,ch)/2;
- //
- // Modidified for new pad plane class, 22.04.05 (C.B.)
- Float_t pad = padPlane->GetRowSize(1);
- Float_t row0 = commonParam->GetRow0(plane,ch,0);
- Int_t nPads = commonParam->GetRowMax(plane,ch,0);
- zmaxsensitive[ch] = Float_t(nPads)*pad/2.;
- zc[ch] = -(pad * nPads)/2 + row0;
+ for (Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) {
+
+ ymax = fGeom->GetChamberWidth(plane) / 2.0;
+ padPlane = commonParam->GetPadPlane(plane,0);
+ ymaxsensitive = (padPlane->GetColSize(1) * padPlane->GetNcols() - 4.0) / 2.0;
+
+ for (Int_t ch = 0; ch < kNchambers; ch++) {
+ zmax[ch] = fGeom->GetChamberLength(plane,ch) / 2.0;
+ Float_t pad = padPlane->GetRowSize(1);
+ Float_t row0 = commonParam->GetRow0(plane,ch,0);
+ Int_t nPads = commonParam->GetRowMax(plane,ch,0);
+ zmaxsensitive[ch] = Float_t(nPads) * pad / 2.0;
+ zc[ch] = -(pad * nPads) / 2.0 + row0;
}
- dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0)
- / AliTRDcalibDB::Instance()->GetSamplingFrequency();
- rho = 0.00295 * 0.85; radLength = 11.0;
+ dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0)
+ / commonParam->GetSamplingFrequency();
+ rho = 0.00295 * 0.85; //????
+ radLength = 11.0;
Double_t x0 = (Double_t) AliTRDgeometry::GetTime0(plane);
//Double_t xbottom = x0 - dxDrift;
- //Double_t xtop = x0 + dxAmp;
- //
+ //Double_t xtop = x0 + dxAmp;
+
Int_t nTimeBins = AliTRDcalibDB::Instance()->GetNumberOfTimeBins();
- for (Int_t iTime = 0; iTime<nTimeBins; iTime++){
- Double_t xlayer = iTime*dx - dxAmp;
- //if (xlayer<0) xlayer=dxAmp/2.;
+ for (Int_t iTime = 0; iTime < nTimeBins; iTime++) {
+
+ Double_t xlayer = iTime * dx - dxAmp;
+ //if (xlayer<0) xlayer = dxAmp / 2.0;
x = x0 - xlayer;
- //
- tbIndex = CookTimeBinIndex(plane, iTime);
- ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex, plane);
+
+ tbIndex = CookTimeBinIndex(plane,iTime);
+ ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex,plane);
ppl->SetYmax(ymax,ymaxsensitive);
- ppl->SetZ(zc, zmax, zmaxsensitive);
+ ppl->SetZ(zc,zmax,zmaxsensitive);
ppl->SetHoles(holes);
InsertLayer(ppl);
+
}
+
}
MapTimeBinLayers();
+
delete [] zc;
delete [] zmax;
delete [] zmaxsensitive;
}
-//______________________________________________________
+//_____________________________________________________________________________
+AliTRDtracker::AliTRDtrackingSector
+ ::AliTRDtrackingSector(const AliTRDtrackingSector &/*t*/)
+ :fN(0)
+ ,fGeom(0)
+ ,fGeomSector(0)
+{
+ //
+ // Copy constructor
+ //
+
+}
-Int_t AliTRDtracker::AliTRDtrackingSector::CookTimeBinIndex(Int_t plane, Int_t localTB) const
+//_____________________________________________________________________________
+Int_t AliTRDtracker::AliTRDtrackingSector
+ ::CookTimeBinIndex(Int_t plane, Int_t localTB) const
{
//
// depending on the digitization parameters calculates "global"
// time bin index for timebin <localTB> in plane <plane>
//
//
+
Int_t tbPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins();
- Int_t gtb = (plane+1) * tbPerPlane - localTB;
- if (localTB<0) return -1;
- if (gtb<0) return -1;
+ Int_t gtb = (plane+1) * tbPerPlane - localTB - 1;
+ if (localTB < 0) {
+ return -1;
+ }
+ if (gtb < 0) {
+ return -1;
+ }
+
return gtb;
-}
-//______________________________________________________
+}
-void AliTRDtracker::AliTRDtrackingSector::MapTimeBinLayers()
+//_____________________________________________________________________________
+void AliTRDtracker::AliTRDtrackingSector
+ ::MapTimeBinLayers()
{
//
// For all sensitive time bins sets corresponding layer index
Int_t index;
- for(Int_t i = 0; i < fN; i++) {
+ for (Int_t i = 0; i < fN; i++) {
+
index = fLayers[i]->GetTimeBinIndex();
- // printf("gtb %d -> pl %d -> x %f \n", index, i, fLayers[i]->GetX());
-
- if(index < 0) continue;
- if(index >= (Int_t) kMaxTimeBinIndex) {
- printf("*** AliTRDtracker::MapTimeBinLayers: \n");
- printf(" index %d exceeds allowed maximum of %d!\n",
- index, kMaxTimeBinIndex-1);
+ if (index < 0) {
+ continue;
+ }
+ if (index >= (Int_t) kMaxTimeBinIndex) {
+ //AliWarning(Form("Index %d exceeds allowed maximum of %d!\n"
+ // ,index,kMaxTimeBinIndex-1));
continue;
}
+
fTimeBinIndex[index] = i;
- }
- Double_t x1, dx1, x2, dx2, gap;
-
- for(Int_t i = 0; i < fN-1; i++) {
- x1 = fLayers[i]->GetX();
- dx1 = fLayers[i]->GetdX();
- x2 = fLayers[i+1]->GetX();
- dx2 = fLayers[i+1]->GetdX();
- gap = (x2 - dx2/2) - (x1 + dx1/2);
-// if(gap < -0.01) {
-// printf("*** warning: layers %d and %d are overlayed:\n",i,i+1);
-// printf(" %f + %f + %f > %f\n", x1, dx1/2, dx2/2, x2);
-// }
-// if(gap > 0.01) {
-// printf("*** warning: layers %d and %d have a large gap:\n",i,i+1);
-// printf(" (%f - %f) - (%f + %f) = %f\n",
-// x2, dx2/2, x1, dx1, gap);
-// }
}
-}
-
-
-//______________________________________________________
+}
-Int_t AliTRDtracker::AliTRDtrackingSector::GetLayerNumber(Double_t x) const
+//_____________________________________________________________________________
+Int_t AliTRDtracker::AliTRDtrackingSector
+ ::GetLayerNumber(Double_t x) const
{
//
// Returns the number of time bin which in radial position is closest to <x>
//
- if(x >= fLayers[fN-1]->GetX()) return fN-1;
- if(x <= fLayers[0]->GetX()) return 0;
+ if (x >= fLayers[fN-1]->GetX()) {
+ return fN - 1;
+ }
+ if (x <= fLayers[ 0]->GetX()) {
+ return 0;
+ }
- Int_t b=0, e=fN-1, m=(b+e)/2;
- for (; b<e; m=(b+e)/2) {
- if (x > fLayers[m]->GetX()) b=m+1;
- else e=m;
+ Int_t b = 0;
+ Int_t e = fN - 1;
+ Int_t m = (b + e) / 2;
+
+ for ( ; b < e; m = (b + e) / 2) {
+ if (x > fLayers[m]->GetX()) {
+ b = m + 1;
+ }
+ else {
+ e = m;
+ }
}
- if(TMath::Abs(x - fLayers[m]->GetX()) >
- TMath::Abs(x - fLayers[m+1]->GetX())) return m+1;
- else return m;
-}
+ if (TMath::Abs(x - fLayers[m]->GetX()) > TMath::Abs(x - fLayers[m+1]->GetX())) {
+ return m + 1;
+ }
+ else {
+ return m;
+ }
-//______________________________________________________
+}
-Int_t AliTRDtracker::AliTRDtrackingSector::GetInnerTimeBin() const
+//_____________________________________________________________________________
+Int_t AliTRDtracker::AliTRDtrackingSector
+ ::GetInnerTimeBin() const
{
//
// Returns number of the innermost SENSITIVE propagation layer
//
return GetLayerNumber(0);
-}
-//______________________________________________________
+}
-Int_t AliTRDtracker::AliTRDtrackingSector::GetOuterTimeBin() const
+//_____________________________________________________________________________
+Int_t AliTRDtracker::AliTRDtrackingSector
+ ::GetOuterTimeBin() const
{
//
// Returns number of the outermost SENSITIVE time bin
//
return GetLayerNumber(GetNumberOfTimeBins() - 1);
-}
-//______________________________________________________
+}
-Int_t AliTRDtracker::AliTRDtrackingSector::GetNumberOfTimeBins() const
+//_____________________________________________________________________________
+Int_t AliTRDtracker::AliTRDtrackingSector
+ ::GetNumberOfTimeBins() const
{
//
// Returns number of SENSITIVE time bins
//
- Int_t tb, layer;
- for(tb = kMaxTimeBinIndex-1; tb >=0; tb--) {
+ Int_t tb;
+ Int_t layer;
+
+ for (tb = kMaxTimeBinIndex - 1; tb >= 0; tb--) {
layer = GetLayerNumber(tb);
- if(layer>=0) break;
+ if (layer >= 0) {
+ break;
+ }
}
- return tb+1;
-}
-//______________________________________________________
+ return tb + 1;
+
+}
-void AliTRDtracker::AliTRDtrackingSector::InsertLayer(AliTRDpropagationLayer* pl)
+//_____________________________________________________________________________
+void AliTRDtracker::AliTRDtrackingSector
+ ::InsertLayer(AliTRDpropagationLayer *pl)
{
//
// Insert layer <pl> in fLayers array.
// Layers are sorted according to X coordinate.
+ //
- if ( fN == ((Int_t) kMaxLayersPerSector)) {
- printf("AliTRDtrackingSector::InsertLayer(): Too many layers !\n");
+ if (fN == ((Int_t) kMaxLayersPerSector)) {
+ //AliWarning("Too many layers !\n");
return;
}
- if (fN==0) {fLayers[fN++] = pl; return;}
- Int_t i=Find(pl->GetX());
- memmove(fLayers+i+1 ,fLayers+i,(fN-i)*sizeof(AliTRDpropagationLayer*));
- fLayers[i]=pl; fN++;
+ if (fN == 0) {
+ fLayers[fN++] = pl;
+ return;
+ }
-}
+ Int_t i = Find(pl->GetX());
-//______________________________________________________
+ memmove(fLayers+i+1,fLayers+i,(fN-i)*sizeof(AliTRDpropagationLayer*));
-Int_t AliTRDtracker::AliTRDtrackingSector::Find(Double_t x) const
+ fLayers[i] = pl;
+ fN++;
+
+}
+
+//_____________________________________________________________________________
+Int_t AliTRDtracker::AliTRDtrackingSector
+ ::Find(Double_t x) const
{
//
// Returns index of the propagation layer nearest to X
//
- if (x <= fLayers[0]->GetX()) return 0;
- if (x > fLayers[fN-1]->GetX()) return fN;
- Int_t b=0, e=fN-1, m=(b+e)/2;
- for (; b<e; m=(b+e)/2) {
- if (x > fLayers[m]->GetX()) b=m+1;
- else e=m;
+ if (x <= fLayers[0]->GetX()) {
+ return 0;
+ }
+
+ if (x > fLayers[fN-1]->GetX()) {
+ return fN;
}
- return m;
-}
+ Int_t b = 0;
+ Int_t e = fN-1;
+ Int_t m = (b + e) / 2;
+ for (; b < e; m = (b + e) / 2) {
+ if (x > fLayers[m]->GetX()) {
+ b = m + 1;
+ }
+ else {
+ e = m;
+ }
+ }
+ return m;
+}
-//______________________________________________________
-void AliTRDtracker::AliTRDpropagationLayer::SetZ(Double_t* center, Double_t *w, Double_t *wsensitive )
+//_____________________________________________________________________________
+void AliTRDtracker::AliTRDpropagationLayer
+ ::SetZ(Double_t *center, Double_t *w, Double_t *wsensitive )
{
//
// set centers and the width of sectors
- for (Int_t icham=0;icham< AliTRDgeometry::kNcham;icham++){
- fZc[icham] = center[icham];
- fZmax[icham] = w[icham];
+ //
+
+ for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) {
+ fZc[icham] = center[icham];
+ fZmax[icham] = w[icham];
fZmaxSensitive[icham] = wsensitive[icham];
- // printf("chamber\t%d\tzc\t%f\tzmax\t%f\tzsens\t%f\n",icham,fZc[icham],fZmax[icham],fZmaxSensitive[icham]);
}
+
}
-//______________________________________________________
+//_____________________________________________________________________________
void AliTRDtracker::AliTRDpropagationLayer::SetHoles(Bool_t *holes)
{
//
// set centers and the width of sectors
+ //
+
fHole = kFALSE;
- for (Int_t icham=0;icham< AliTRDgeometry::kNcham;icham++){
+
+ for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) {
fIsHole[icham] = holes[icham];
- if (holes[icham]) fHole = kTRUE;
+ if (holes[icham]) {
+ fHole = kTRUE;
+ }
}
-}
-
+}
+//_____________________________________________________________________________
+void AliTRDtracker::AliTRDpropagationLayer
+ ::InsertCluster(AliTRDcluster *c, UInt_t index)
+{
+ //
+ // Insert cluster in cluster array.
+ // Clusters are sorted according to Y coordinate.
+ //
+ if (fTimeBinIndex < 0) {
+ //AliWarning("Attempt to insert cluster into non-sensitive time bin!\n");
+ return;
+ }
-//______________________________________________________
-
-void AliTRDtracker::AliTRDpropagationLayer::InsertCluster(AliTRDcluster* c,
- UInt_t index) {
-
-// Insert cluster in cluster array.
-// Clusters are sorted according to Y coordinate.
-
- if(fTimeBinIndex < 0) {
- printf("*** attempt to insert cluster into non-sensitive time bin!\n");
+ if (fN == (Int_t) kMaxClusterPerTimeBin) {
+ //AliWarning("Too many clusters !\n");
return;
}
- if (fN== (Int_t) kMaxClusterPerTimeBin) {
- printf("AliTRDpropagationLayer::InsertCluster(): Too many clusters !\n");
+ if (fN == 0) {
+ fIndex[0] = index;
+ fClusters[fN++] = c;
return;
}
- if (fN==0) {fIndex[0]=index; fClusters[fN++]=c; return;}
- Int_t i=Find(c->GetY());
- memmove(fClusters+i+1 ,fClusters+i,(fN-i)*sizeof(AliTRDcluster*));
- memmove(fIndex +i+1 ,fIndex +i,(fN-i)*sizeof(UInt_t));
- fIndex[i]=index; fClusters[i]=c; fN++;
+
+ Int_t i = Find(c->GetY());
+ memmove(fClusters+i+1,fClusters+i,(fN-i)*sizeof(AliTRDcluster*));
+ memmove(fIndex +i+1,fIndex +i,(fN-i)*sizeof(UInt_t));
+ fIndex[i] = index;
+ fClusters[i] = c;
+ fN++;
+
}
-//______________________________________________________
+//_____________________________________________________________________________
+Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const
+{
+ //
+ // Returns index of the cluster nearest in Y
+ //
-Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const {
+ if (fN <= 0) {
+ return 0;
+ }
+ if (y <= fClusters[0]->GetY()) {
+ return 0;
+ }
+ if (y > fClusters[fN-1]->GetY()) {
+ return fN;
+ }
-// Returns index of the cluster nearest in Y
+ Int_t b = 0;
+ Int_t e = fN - 1;
+ Int_t m = (b + e) / 2;
- if (fN<=0) return 0;
- if (y <= fClusters[0]->GetY()) return 0;
- if (y > fClusters[fN-1]->GetY()) return fN;
- Int_t b=0, e=fN-1, m=(b+e)/2;
- for (; b<e; m=(b+e)/2) {
- if (y > fClusters[m]->GetY()) b=m+1;
- else e=m;
+ for ( ; b < e; m = (b + e) / 2) {
+ if (y > fClusters[m]->GetY()) {
+ b = m + 1;
+ }
+ else {
+ e = m;
+ }
}
+
return m;
+
}
-Int_t AliTRDtracker::AliTRDpropagationLayer::FindNearestCluster(Float_t y, Float_t z, Float_t maxroad, Float_t maxroadz) const
+//_____________________________________________________________________________
+Int_t AliTRDtracker::AliTRDpropagationLayer
+ ::FindNearestCluster(Float_t y, Float_t z, Float_t maxroad
+ , Float_t maxroadz) const
{
//
// Returns index of the cluster nearest to the given y,z
//
- Int_t index = -1;
- Int_t maxn = fN;
+
+ Int_t index = -1;
+ Int_t maxn = fN;
Float_t mindist = maxroad;
- //
- for (Int_t i=Find(y-maxroad); i<maxn; i++) {
- AliTRDcluster* c=(AliTRDcluster*)(fClusters[i]);
+
+ for (Int_t i = Find(y-maxroad); i < maxn; i++) {
+ AliTRDcluster *c = (AliTRDcluster *) (fClusters[i]);
Float_t ycl = c->GetY();
- //
- if (ycl > y+maxroad) break;
- if (TMath::Abs(c->GetZ()-z) > maxroadz) continue;
- if (TMath::Abs(ycl-y)<mindist){
- mindist = TMath::Abs(ycl-y);
- index = fIndex[i];
- }
+ if (ycl > (y + maxroad)) {
+ break;
+ }
+ if (TMath::Abs(c->GetZ() - z) > maxroadz) {
+ continue;
+ }
+ if (TMath::Abs(ycl - y) < mindist) {
+ mindist = TMath::Abs(ycl - y);
+ index = fIndex[i];
+ }
}
+
return index;
-}
+}
-//---------------------------------------------------------
+//_____________________________________________________________________________
+Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster *c)
+{
+ //
+ // Returns correction factor for tilted pads geometry
+ //
-Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster* c) {
-//
-// Returns correction factor for tilted pads geometry
-//
- Int_t det = c->GetDetector();
- Int_t plane = fGeom->GetPlane(det);
+ Int_t det = c->GetDetector();
+ Int_t plane = fGeom->GetPlane(det);
AliTRDpadPlane *padPlane = AliTRDCommonParam::Instance()->GetPadPlane(plane,0);
- Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle());
+ Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle());
+
+ if (fNoTilt) {
+ h01 = 0;
+ }
- if(fNoTilt) h01 = 0;
return h01;
-}
+}
-void AliTRDtracker::CookdEdxTimBin(AliTRDtrack& TRDtrack)
+//_____________________________________________________________________________
+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];
+ Double_t clscharge[AliESDtrack::kNPlane][AliESDtrack::kNSlice];
+ Double_t maxclscharge[AliESDtrack::kNPlane];
+ Int_t nCluster[AliESDtrack::kNPlane][AliESDtrack::kNSlice];
+ Int_t timebin[AliESDtrack::kNPlane];
- //Initialization of cluster charge per plane.
- for (Int_t iPlane = 0; iPlane < kNPlane; iPlane++) {
- clscharge[iPlane] = 0.0;
- nCluster[iPlane] = 0;
- timebin[iPlane] = -1;
+ // Initialization of cluster charge per plane.
+ for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) {
+ for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) {
+ clscharge[iPlane][iSlice] = 0.0;
+ nCluster[iPlane][iSlice] = 0;
+ }
+ }
+
+ // Initialization of cluster charge per plane.
+ for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) {
+ timebin[iPlane] = -1;
maxclscharge[iPlane] = 0.0;
}
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]) {
+ Int_t index = TRDtrack.GetClusterIndex(iClus);
+ AliTRDcluster *pTRDcluster = (AliTRDcluster *) GetCluster(index);
+ if (!pTRDcluster) {
+ continue;
+ }
+ Int_t tb = pTRDcluster->GetLocalTimeBin();
+ if (!tb) {
+ continue;
+ }
+ Int_t detector = pTRDcluster->GetDetector();
+ Int_t iPlane = fGeom->GetPlane(detector);
+ Int_t iSlice = tb * AliESDtrack::kNSlice / AliTRDtrack::kNtimeBins;
+ clscharge[iPlane][iSlice] = clscharge[iPlane][iSlice] + charge;
+ if (charge > maxclscharge[iPlane]) {
maxclscharge[iPlane] = charge;
- timebin[iPlane] = tb;
+ timebin[iPlane] = tb;
}
- nCluster[iPlane]++;
- } // end of loop over cluster
+ nCluster[iPlane][iSlice]++;
+ } // 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];
+ Double_t totalCharge = 0.0;
+
+ for (Int_t iPlane = 0; iPlane < AliESDtrack::kNPlane; iPlane++) {
+ for (Int_t iSlice = 0; iSlice < AliESDtrack::kNSlice; iSlice++) {
+ if (nCluster[iPlane][iSlice]) {
+ clscharge[iPlane][iSlice] /= nCluster[iPlane][iSlice];
+ }
+ TRDtrack.SetPIDsignals(clscharge[iPlane][iSlice],iPlane,iSlice);
+ totalCharge = totalCharge+clscharge[iPlane][iSlice];
+ }
+ TRDtrack.SetPIDTimBin(timebin[iPlane],iPlane);
}
+
+ // Still needed ????
// Int_t i;
// Int_t nc=TRDtrack.GetNumberOfClusters();
// Float_t dedx=0;
// TRDtrack.SetPIDTimBin(timbin[iPlane], iPlane);
// }
-} // end of function
-
+}
-Int_t AliTRDtracker::FindClusters(Int_t sector, Int_t t0, Int_t t1, AliTRDtrack * track, Int_t *clusters,AliTRDtracklet&tracklet)
+//_____________________________________________________________________________
+Int_t AliTRDtracker::FindClusters(Int_t sector, Int_t t0, Int_t t1
+ , AliTRDtrack *track
+ , Int_t *clusters, AliTRDtracklet &tracklet)
{
//
//
- // try to find nearest clusters to the track in timebins from t0 to t1
- //
- //
+ // Try to find nearest clusters to the track in timebins from t0 to t1
//
- // correction coeficients - depends on TRD parameters - to be changed according it
- //
+ // Correction coeficients - depend on TRD parameters - to be changed accordingly
+ //
+
+ Double_t x[100];
+ Double_t yt[100];
+ Double_t zt[100];
+ Double_t xmean = 0.0; // Reference x
+ Double_t dz[10][100];
+ Double_t dy[10][100];
+ Float_t zmean[100];
+ Float_t nmean[100];
+ Int_t clfound = 0;
+ Int_t indexes[10][100]; // Indexes of the clusters in the road
+ Int_t best[10][100]; // Index of best matching cluster
+ AliTRDcluster *cl[10][100]; // Pointers to the clusters in the road
+
+ for (Int_t it = 0; it < 100; it++) {
+ x[it] = 0.0;
+ yt[it] = 0.0;
+ zt[it] = 0.0;
+ clusters[it] = -2;
+ zmean[it] = 0.0;
+ nmean[it] = 0.0;
+ for (Int_t ih = 0; ih < 10;ih++) {
+ indexes[ih][it] = -2; // Reset indexes1
+ cl[ih][it] = 0;
+ dz[ih][it] = -100.0;
+ dy[ih][it] = -100.0;
+ best[ih][it] = 0;
+ }
+ }
- Double_t x[100],yt[100],zt[100];
- Double_t xmean=0; //reference x
- Double_t dz[10][100],dy[10][100];
- Float_t zmean[100], nmean[100];
- Int_t clfound=0;
- Int_t indexes[10][100]; // indexes of the clusters in the road
- AliTRDcluster *cl[10][100]; // pointers to the clusters in the road
- Int_t best[10][100]; // index of best matching cluster
- //
- //
+ Double_t x0 = track->GetX();
+ Double_t sigmaz = TMath::Sqrt(TMath::Abs(track->GetSigmaZ2()));
+ Int_t nall = 0;
+ Int_t nfound = 0;
+ Double_t h01 = 0.0;
+ Int_t plane = -1;
+ Int_t detector = -1;
+ Float_t padlength = 0.0;
+ AliTRDtrack track2(* track);
+ Float_t snpy = track->GetSnp();
+ Float_t tany = TMath::Sqrt(snpy*snpy / (1.0 - snpy*snpy));
+ if (snpy < 0.0) {
+ tany *= -1.0;
+ }
- for (Int_t it=0;it<=t1-t0; it++){
- x[it]=0;
- yt[it]=0;
- zt[it]=0;
- clusters[it+t0]=-2;
- zmean[it]=0;
- nmean[it]=0;
- //
- for (Int_t ih=0;ih<10;ih++){
- indexes[ih][it]=-2; //reset indexes1
- cl[ih][it]=0;
- dz[ih][it]=-100;
- dy[ih][it]=-100;
- best[ih][it]=0;
+ Double_t sy2 = ExpectedSigmaY2(x0,track->GetTgl(),track->GetPt());
+ Double_t sz2 = ExpectedSigmaZ2(x0,track->GetTgl());
+ Double_t road = 15.0 * TMath::Sqrt(track->GetSigmaY2() + sy2);
+ if (road > 6.0) {
+ road = 6.0;
+ }
+ //road = 20.0;
+
+ for (Int_t it = 0; it < t1-t0; it++) {
+
+ Double_t maxChi2[2] = { fgkMaxChi2, fgkMaxChi2 };
+ AliTRDpropagationLayer &timeBin = *(fTrSec[sector]->GetLayer(it+t0));
+ if (timeBin == 0) {
+ continue; // No indexes1
}
- }
- //
- Double_t x0 = track->GetX();
- Double_t sigmaz = TMath::Sqrt(TMath::Abs(track->GetSigmaZ2()));
- Int_t nall=0;
- Int_t nfound=0;
- Double_t h01 =0;
- Int_t plane =-1;
- Float_t padlength=0;
- AliTRDtrack track2(*track);
- Float_t snpy = track->GetSnp();
- Float_t tany = TMath::Sqrt(snpy*snpy/(1.-snpy*snpy));
- if (snpy<0) tany*=-1;
- //
- Double_t sy2=ExpectedSigmaY2(x0,track->GetTgl(),track->GetPt());
- Double_t sz2=ExpectedSigmaZ2(x0,track->GetTgl());
- Double_t road = 15.*sqrt(track->GetSigmaY2() + sy2);
- if (road>6.) road=6.;
-
- //
- for (Int_t it=0;it<t1-t0;it++){
- Double_t maxChi2[2]={fgkMaxChi2,fgkMaxChi2};
- AliTRDpropagationLayer& timeBin=*(fTrSec[sector]->GetLayer(it+t0));
- if (timeBin==0) continue; // no indexes1
- Int_t maxn = timeBin;
- x[it] = timeBin.GetX();
+
+ Int_t maxn = timeBin;
+ x[it] = timeBin.GetX();
track2.PropagateTo(x[it]);
yt[it] = track2.GetY();
zt[it] = track2.GetZ();
- Double_t y=yt[it],z=zt[it];
- Double_t chi2 =1000000;
+ Double_t y = yt[it];
+ Double_t z = zt[it];
+ Double_t chi2 = 1000000.0;
nall++;
+
//
- // find 2 nearest cluster at given time bin
+ // Find 2 nearest cluster at given time bin
//
- //
- for (Int_t i=timeBin.Find(y-road); i<maxn; i++) {
- AliTRDcluster* c=(AliTRDcluster*)(timeBin[i]);
+ int checkPoint[4] = {0,0,0,0};
+ double minY = 123456789;
+ double minD[2] = {1,1};
+
+ for (Int_t i = timeBin.Find(y - road); i < maxn; i++) {
+ //for (Int_t i = 0; i < maxn; i++) {
+
+ AliTRDcluster *c = (AliTRDcluster *) (timeBin[i]);
h01 = GetTiltFactor(c);
- if (plane<0){
- Int_t det = c->GetDetector();
- plane = fGeom->GetPlane(det);
- padlength = TMath::Sqrt(c->GetSigmaZ2()*12.);
+ if (plane < 0) {
+ Int_t det = c->GetDetector();
+ plane = fGeom->GetPlane(det);
+ padlength = TMath::Sqrt(c->GetSigmaZ2() * 12.0);
+ }
+
+ //if (c->GetLocalTimeBin()==0) continue;
+ if (c->GetY() > (y + road)) {
+ break;
+ }
+
+ fHDeltaX->Fill(c->GetX() - x[it]);
+ //printf("%f\t%f\t%f \n", c->GetX(), x[it], c->GetX()-x[it]);
+
+ if (TMath::Abs(c->GetY()-y) < TMath::Abs(minY)) {
+ minY = c->GetY()-y;
+ minD[0] = c->GetY()-y;
+ minD[1] = c->GetZ()-z;
}
- // 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;
- //
+ checkPoint[0]++;
+
+ fHMinZ->Fill(c->GetZ() - z);
+ if ((c->GetZ() - z) * (c->GetZ() - z) > 2 * (12.0 * sz2)) {
+ continue;
+ }
+ checkPoint[1]++;
+
+ Double_t dist = TMath::Abs(c->GetZ() - z);
+ if (dist > (0.5 * padlength + 6.0 * sigmaz)) { // 0.5
+ continue; // 6 sigma boundary cut
+ }
+ checkPoint[2]++;
+
+ Double_t cost = 0.0;
+ // Sigma boundary cost function
+ if (dist> (0.5 * padlength - sigmaz)){
+ cost = (dist - 0.5*padlength) / (2.0 * sigmaz);
+ if (cost > -1) {
+ cost = (cost + 1.0) * (cost + 1.0);
+ }
+ else {
+ cost = 0.0;
+ }
+ }
+ //Int_t label = TMath::Abs(track->GetLabel());
+ //if (c->GetLabel(0)!=label && c->GetLabel(1)!=label&&c->GetLabel(2)!=label) continue;
+ chi2 = track2.GetPredictedChi2(c,h01) + cost;
clfound++;
- if (chi2 > maxChi2[1]) continue;
-
- for (Int_t ih=2;ih<9; ih++){ //store the clusters in the road
- if (cl[ih][it]==0){
- cl[ih][it] = c;
- indexes[ih][it] =timeBin.GetIndex(i); // index - 9 - reserved for outliers
+
+ if (chi2 > maxChi2[1]) {
+ continue;
+ }
+ checkPoint[3]++;
+
+ detector = c->GetDetector();
+ // Store the clusters in the road
+ for (Int_t ih = 2; ih < 9; ih++) {
+ if (cl[ih][it] == 0) {
+ cl[ih][it] = c;
+ indexes[ih][it] = timeBin.GetIndex(i); // Index - 9 - reserved for outliers
break;
}
}
- //
- if (chi2 <maxChi2[0]){
+
+ if (chi2 < maxChi2[0]) {
maxChi2[1] = maxChi2[0];
maxChi2[0] = chi2;
indexes[1][it] = indexes[0][it];
cl[0][it] = c;
continue;
}
- maxChi2[1]=chi2;
- cl[1][it] = c;
- indexes[1][it] =timeBin.GetIndex(i);
- }
- if (cl[0][it]){
+ maxChi2[1] = chi2;
+ cl[1][it] = c;
+ indexes[1][it] = timeBin.GetIndex(i);
+
+ }
+
+ for(int iCheckPoint = 0; iCheckPoint<4; iCheckPoint++)
+ fHFindCl[iCheckPoint]->Fill(checkPoint[iCheckPoint]);
+
+ if (checkPoint[3]) {
+ if (track->GetPt() > 0) fHMinYPos->Fill(minY);
+ else fHMinYNeg->Fill(minY);
+
+ fHMinD->Fill(minD[0], minD[1]);
+ }
+
+ if (cl[0][it]) {
nfound++;
xmean += x[it];
}
+
}
+
+ if (nfound < 4) {
+ return 0;
+ }
+ xmean /= Float_t(nfound); // Middle x
+ track2.PropagateTo(xmean); // Propagate track to the center
+
//
- if (nfound<4) return 0;
- xmean /=Float_t(nfound); // middle x
- track2.PropagateTo(xmean); // propagate track to the center
- //
- // choose one of the variants
- //
- Int_t changes[10];
- Float_t sumz = 0;
- Float_t sum = 0;
- Double_t sumdy = 0;
- Double_t sumdy2 = 0;
- Double_t sumx = 0;
- Double_t sumxy = 0;
- Double_t sumx2 = 0;
- Double_t mpads = 0;
- //
- Int_t ngood[10];
- Int_t nbad[10];
+ // Choose one of the variants
//
+ Int_t changes[10];
+ Float_t sumz = 0.0;
+ Float_t sum = 0.0;
+ Double_t sumdy = 0.0;
+ Double_t sumdy2 = 0.0;
+ Double_t sumx = 0.0;
+ Double_t sumxy = 0.0;
+ Double_t sumx2 = 0.0;
+ Double_t mpads = 0.0;
+
+ Int_t ngood[10];
+ Int_t nbad[10];
+
Double_t meanz[10];
- Double_t moffset[10]; // mean offset
- Double_t mean[10]; // mean value
- Double_t angle[10]; // angle
- //
- Double_t smoffset[10]; // sigma of mean offset
- Double_t smean[10]; // sigma of mean value
- Double_t sangle[10]; // sigma of angle
- Double_t smeanangle[10]; // correlation
- //
+ Double_t moffset[10]; // Mean offset
+ Double_t mean[10]; // Mean value
+ Double_t angle[10]; // Angle
+
+ Double_t smoffset[10]; // Sigma of mean offset
+ Double_t smean[10]; // Sigma of mean value
+ Double_t sangle[10]; // Sigma of angle
+ Double_t smeanangle[10]; // Correlation
+
Double_t sigmas[10];
- Double_t tchi2s[10]; // chi2s for tracklet
- //
- // calculate zmean
- //
- for (Int_t it=0;it<t1-t0;it++){
- if (!cl[0][it]) continue;
- for (Int_t dt=-3;dt<=3;dt++){
- if (it+dt<0) continue;
- if (it+dt>t1-t0) continue;
- if (!cl[0][it+dt]) continue;
- zmean[it]+=cl[0][it+dt]->GetZ();
- nmean[it]+=1.;
- }
- zmean[it]/=nmean[it];
- }
- //
- for (Int_t it=0; it<t1-t0;it++){
- best[0][it]=0;
- for (Int_t ih=0;ih<10;ih++){
- dz[ih][it]=-100;
- dy[ih][it]=-100;
- if (!cl[ih][it]) continue;
- Double_t xcluster = cl[ih][it]->GetX();
- 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;
- }
+ Double_t tchi2s[10]; // Chi2s for tracklet
+
+ for (Int_t it = 0; it < 10; it++) {
+
+ ngood[it] = 0;
+ nbad[it] = 0;
+
+ meanz[it] = 0.0;
+ moffset[it] = 0.0; // Mean offset
+ mean[it] = 0.0; // Mean value
+ angle[it] = 0.0; // Angle
+
+ smoffset[it] = 1.0e5; // Sigma of mean offset
+ smean[it] = 1.0e5; // Sigma of mean value
+ sangle[it] = 1.0e5; // Sigma of angle
+ smeanangle[it] = 0.0; // Correlation
+
+ sigmas[it] = 1.0e5;
+ tchi2s[it] = 1.0e5; // Chi2s for tracklet
+
}
+
//
- // iterative choosing of "best path"
+ // Calculate zmean
//
+ for (Int_t it = 0; it < t1 - t0; it++) {
+ if (!cl[0][it]) {
+ continue;
+ }
+ for (Int_t dt = -3; dt <= 3; dt++) {
+ if (it+dt < 0) {
+ continue;
+ }
+ if (it+dt > t1-t0) {
+ continue;
+ }
+ if (!cl[0][it+dt]) {
+ continue;
+ }
+ zmean[it] += cl[0][it+dt]->GetZ();
+ nmean[it] += 1.0;
+ }
+ zmean[it] /= nmean[it];
+ }
+
+ for (Int_t it = 0; it < t1 - t0; it++) {
+
+ best[0][it] = 0;
+
+ for (Int_t ih = 0; ih < 10; ih++) {
+ dz[ih][it] = -100.0;
+ dy[ih][it] = -100.0;
+ if (!cl[ih][it]) {
+ continue;
+ }
+ Double_t xcluster = cl[ih][it]->GetX();
+ Double_t ytrack;
+ Double_t ztrack;
+ track2.GetProlongation(xcluster,ytrack,ztrack );
+ dz[ih][it] = cl[ih][it]->GetZ()- ztrack; // Calculate distance from track in z
+ dy[ih][it] = cl[ih][it]->GetY() + dz[ih][it]*h01 - ytrack; // and in y
+ }
+
+ // Minimize changes
+ if (!cl[0][it]) {
+ continue;
+ }
+ if ((TMath::Abs(cl[0][it]->GetZ()-zmean[it]) > padlength * 0.8) &&
+ (cl[1][it])) {
+ if (TMath::Abs(cl[1][it]->GetZ()-zmean[it]) < padlength * 0.5) {
+ best[0][it] = 1;
+ }
+ }
+
+ }
+
//
- Int_t label = TMath::Abs(track->GetLabel());
- Int_t bestiter=0;
+ // Iterative choice of "best path"
//
- for (Int_t iter=0;iter<9;iter++){
- //
- changes[iter]= 0;
- sumz = 0; sum=0; sumdy=0;sumdy2=0;sumx=0;sumx2=0;sumxy=0;mpads=0; ngood[iter]=0; nbad[iter]=0;
- // linear fit
- for (Int_t it=0;it<t1-t0;it++){
- if (!cl[best[iter][it]][it]) continue;
- //calculates pad-row changes
- Double_t zbefore= cl[best[iter][it]][it]->GetZ();
- Double_t zafter = cl[best[iter][it]][it]->GetZ();
- for (Int_t itd = it-1; itd>=0;itd--) {
+ Int_t label = TMath::Abs(track->GetLabel());
+ Int_t bestiter = 0;
+
+ for (Int_t iter = 0; iter < 9; iter++) {
+
+ changes[iter] = 0;
+ sumz = 0;
+ sum = 0;
+ sumdy = 0;
+ sumdy2 = 0;
+ sumx = 0;
+ sumx2 = 0;
+ sumxy = 0;
+ mpads = 0;
+ ngood[iter] = 0;
+ nbad[iter] = 0;
+
+ // Linear fit
+ for (Int_t it = 0; it < t1 - t0; it++) {
+
+ if (!cl[best[iter][it]][it]) {
+ continue;
+ }
+
+ // Calculates pad-row changes
+ Double_t zbefore = cl[best[iter][it]][it]->GetZ();
+ Double_t zafter = cl[best[iter][it]][it]->GetZ();
+ for (Int_t itd = it - 1; itd >= 0; itd--) {
if (cl[best[iter][itd]][itd]) {
- zbefore= cl[best[iter][itd]][itd]->GetZ();
+ zbefore = cl[best[iter][itd]][itd]->GetZ();
break;
}
}
- for (Int_t itd = it+1; itd<t1-t0;itd++) {
+ for (Int_t itd = it + 1; itd < t1 - t0; itd++) {
if (cl[best[iter][itd]][itd]) {
- zafter= cl[best[iter][itd]][itd]->GetZ();
+ zafter = cl[best[iter][itd]][itd]->GetZ();
break;
}
}
- if (TMath::Abs(cl[best[iter][it]][it]->GetZ()-zbefore)>0.1&&TMath::Abs(cl[best[iter][it]][it]->GetZ()-zafter)>0.1) changes[iter]++;
- //
- Double_t dx = x[it]-xmean; // distance to reference x
- sumz += cl[best[iter][it]][it]->GetZ();
+ if ((TMath::Abs(cl[best[iter][it]][it]->GetZ()-zbefore) > 0.1) &&
+ (TMath::Abs(cl[best[iter][it]][it]->GetZ()- zafter) > 0.1)) {
+ changes[iter]++;
+ }
+
+ 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;
+ sumdy += dy[best[iter][it]][it];
+ sumdy2 += dy[best[iter][it]][it]*dy[best[iter][it]][it];
+ sumx += dx;
+ sumx2 += dx*dx;
sumxy += dx*dy[best[iter][it]][it];
- mpads += cl[best[iter][it]][it]->GetNPads();
- if (cl[best[iter][it]][it]->GetLabel(0)==label || cl[best[iter][it]][it]->GetLabel(1)==label||cl[best[iter][it]][it]->GetLabel(2)==label){
+ mpads += cl[best[iter][it]][it]->GetNPads();
+ if ((cl[best[iter][it]][it]->GetLabel(0) == label) ||
+ (cl[best[iter][it]][it]->GetLabel(1) == label) ||
+ (cl[best[iter][it]][it]->GetLabel(2) == label)) {
ngood[iter]++;
}
- else{
+ else {
nbad[iter]++;
}
+
}
+
//
// calculates line parameters
//
- Double_t det = sum*sumx2-sumx*sumx;
- angle[iter] = (sum*sumxy-sumx*sumdy)/det;
- mean[iter] = (sumx2*sumdy-sumx*sumxy)/det;
- meanz[iter] = sumz/sum;
- moffset[iter] = sumdy/sum;
- mpads /= sum; // mean number of pads
- //
- //
- Double_t sigma2 = 0; // normalized residuals - for line fit
- Double_t sigma1 = 0; // normalized residuals - constant fit
- //
- for (Int_t it=0;it<t1-t0;it++){
- if (!cl[best[iter][it]][it]) continue;
- Double_t dx = x[it]-xmean;
- Double_t ytr = mean[iter]+angle[iter]*dx;
- sigma2 += (dy[best[iter][it]][it]-ytr)*(dy[best[iter][it]][it]-ytr);
- sigma1 += (dy[best[iter][it]][it]-moffset[iter])*(dy[best[iter][it]][it]-moffset[iter]);
+ Double_t det = sum*sumx2 - sumx*sumx;
+ angle[iter] = (sum*sumxy - sumx*sumdy) / det;
+ mean[iter] = (sumx2*sumdy - sumx*sumxy) / det;
+ meanz[iter] = sumz / sum;
+ moffset[iter] = sumdy / sum;
+ mpads /= sum; // Mean number of pads
+
+ Double_t sigma2 = 0.0; // Normalized residuals - for line fit
+ Double_t sigma1 = 0.0; // Normalized residuals - constant fit
+
+ for (Int_t it = 0; it < t1 - t0; it++) {
+ if (!cl[best[iter][it]][it]) {
+ continue;
+ }
+ Double_t dx = x[it] - xmean;
+ Double_t ytr = mean[iter] + angle[iter] * dx;
+ sigma2 += (dy[best[iter][it]][it] - ytr)
+ * (dy[best[iter][it]][it] - ytr);
+ sigma1 += (dy[best[iter][it]][it] - moffset[iter])
+ * (dy[best[iter][it]][it] - moffset[iter]);
sum++;
}
- sigma2 /=(sum-2); // normalized residuals
- sigma1 /=(sum-1); // normalized residuals
- //
- smean[iter] = sigma2*(sumx2/det); // estimated error2 of mean
- sangle[iter] = sigma2*(sum/det); // estimated error2 of angle
- smeanangle[iter] = sigma2*(-sumx/det); // correlation
- //
- //
- sigmas[iter] = TMath::Sqrt(sigma1); //
- smoffset[iter]= (sigma1/sum)+0.01*0.01; // sigma of mean offset + unisochronity sigma
+ sigma2 /= (sum - 2); // Normalized residuals
+ sigma1 /= (sum - 1); // Normalized residuals
+ smean[iter] = sigma2 * (sumx2 / det); // Estimated error2 of mean
+ sangle[iter] = sigma2 * ( sum / det); // Estimated error2 of angle
+ smeanangle[iter] = sigma2 * (-sumx / det); // Correlation
+ sigmas[iter] = TMath::Sqrt(sigma1);
+ smoffset[iter] = (sigma1 / sum) + 0.01*0.01; // Sigma of mean offset + unisochronity sigma
+
//
- // iterative choosing of "better path"
+ // Iterative choice of "better path"
//
- for (Int_t it=0;it<t1-t0;it++){
- if (!cl[best[iter][it]][it]) continue;
- //
- Double_t sigmatr2 = smoffset[iter]+0.5*tany*tany; //add unisochronity + angular effect contribution
- Double_t sweight = 1./sigmatr2+1./track->GetSigmaY2();
- 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 (dist2<mindist){
+ for (Int_t it = 0; it < t1 - t0; it++) {
+
+ if (!cl[best[iter][it]][it]) {
+ continue;
+ }
+
+ // Add unisochronity + angular effect contribution
+ Double_t sigmatr2 = smoffset[iter] + 0.5*tany*tany;
+ Double_t sweight = 1.0/sigmatr2 + 1.0/track->GetSigmaY2();
+ Double_t weighty = (moffset[iter] / sigmatr2) / sweight; // Weighted mean
+ Double_t sigmacl = TMath::Sqrt(sigma1*sigma1 + track->GetSigmaY2());
+ Double_t mindist = 100000.0;
+ Int_t ihbest = 0;
+
+ for (Int_t ih = 0; ih < 10; ih++) {
+ if (!cl[ih][it]) {
+ break;
+ }
+ Double_t dist2 = (dy[ih][it] - weighty) / sigmacl;
+ dist2 *= dist2; // Chi2 distance
+ if (dist2 < mindist) {
mindist = dist2;
- ihbest =ih;
+ ihbest = ih;
}
}
- best[iter+1][it]=ihbest;
+ best[iter+1][it] = ihbest;
}
+
//
- // update best hypothesy if better chi2 according tracklet position and angle
+ // Update best hypothesy if better chi2 according tracklet position and angle
//
Double_t sy2 = smean[iter] + track->GetSigmaY2();
- Double_t sa2 = sangle[iter] + track->fCee;
- Double_t say = track->fCey;
- // Double_t chi20 = mean[bestiter]*mean[bestiter]/sy2+angle[bestiter]*angle[bestiter]/sa2;
- // Double_t chi21 = mean[iter]*mean[iter]/sy2+angle[iter]*angle[iter]/sa2;
+ Double_t sa2 = sangle[iter] + track->GetSigmaSnp2(); // track->fCee;
+ Double_t say = track->GetSigmaSnpY(); // track->fCey;
+ //Double_t 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 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] && chi21<chi20) {
- bestiter =iter;
+ Double_t chi20 = mean[bestiter] * mean[bestiter] * invers[0]
+ + angle[bestiter] * angle[bestiter] * invers[1]
+ + 2.0 * mean[bestiter] * angle[bestiter] * invers[2];
+ Double_t chi21 = mean[iter] * mean[iter] * invers[0]
+ + angle[iter] * angle[iter] * invers[1]
+ + 2.0 * mean[iter] * angle[iter] * invers[2];
+ tchi2s[iter] = chi21;
+
+ if ((changes[iter] <= changes[bestiter]) &&
+ (chi21 < chi20)) {
+ bestiter = iter;
}
+
}
+
//
- //set clusters
+ // Set clusters
//
- Double_t sigma2 = sigmas[0]; // choose as sigma from 0 iteration
- Short_t maxpos = -1;
- Float_t maxcharge = 0;
- Short_t maxpos4 = -1;
- Float_t maxcharge4 = 0;
- Short_t maxpos5 = -1;
- Float_t maxcharge5 = 0;
+ Double_t sigma2 = sigmas[0]; // Choose as sigma from 0 iteration
+ Short_t maxpos = -1;
+ Float_t maxcharge = 0.0;
+ Short_t maxpos4 = -1;
+ Float_t maxcharge4 = 0.0;
+ Short_t maxpos5 = -1;
+ Float_t maxcharge5 = 0.0;
//if (tchi2s[bestiter]>25.) sigma2*=tchi2s[bestiter]/25.;
//if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept
- Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(AliTRDcalibDB::Instance()->GetVdrift(0,0,0));
- 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.;
+ Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(AliTRDcalibDB::Instance()->GetVdrift(0,0,0)
+ ,-AliTracker::GetBz()*0.1);
+ Double_t expectederr = sigma2*sigma2 + 0.01*0.01;
+ if (mpads > 3.5) {
+ expectederr += (mpads - 3.5) * 0.04;
+ }
+ if (changes[bestiter] > 1) {
+ expectederr += changes[bestiter] * 0.01;
+ }
+ expectederr += (0.03 * (tany-exB)*(tany-exB)) * 15.0;
+ //if (tchi2s[bestiter]>18.) expectederr*= tchi2s[bestiter]/18.;
//expectederr+=10000;
- for (Int_t it=0;it<t1-t0;it++){
- if (!cl[best[bestiter][it]][it]) continue;
- cl[best[bestiter][it]][it]->SetSigmaY2(expectederr); // set cluster error
- if (!cl[best[bestiter][it]][it]->IsUsed()){
- cl[best[bestiter][it]][it]->SetY( cl[best[bestiter][it]][it]->GetY());
- // cl[best[bestiter][it]][it]->Use();
+
+ for (Int_t it = 0; it < t1 - t0; it++) {
+
+ if (!cl[best[bestiter][it]][it]) {
+ continue;
}
- //
- // time bins with maximal charge
- if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge){
+
+ cl[best[bestiter][it]][it]->SetSigmaY2(expectederr); // Set cluster error
+ if (!cl[best[bestiter][it]][it]->IsUsed()) {
+ cl[best[bestiter][it]][it]->SetY(cl[best[bestiter][it]][it]->GetY());
+ //cl[best[bestiter][it]][it]->Use();
+ }
+
+ // Time bins with maximal charge
+ if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) {
maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ());
- maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin();
+ maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin();
}
- if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge4){
- if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>=4){
+ if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) {
+ if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) {
maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ());
- maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin();
+ maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin();
}
}
- if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge5){
- if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>=5){
+
+ if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) {
+ if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) {
maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ());
- maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin();
+ maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin();
}
}
- //
- // time bins with maximal charge
- if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge){
+
+ // Time bins with maximal charge
+ if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge) {
maxcharge = TMath::Abs(cl[best[bestiter][it]][it]->GetQ());
- maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin();
+ maxpos = cl[best[bestiter][it]][it]->GetLocalTimeBin();
}
- if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge4){
- if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>=4){
+ if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge4) {
+ if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 4) {
maxcharge4 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ());
- maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin();
+ maxpos4 = cl[best[bestiter][it]][it]->GetLocalTimeBin();
}
}
- if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ())> maxcharge5){
- if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>=5){
+
+ if (TMath::Abs(cl[best[bestiter][it]][it]->GetQ()) > maxcharge5) {
+ if (cl[best[bestiter][it]][it]->GetLocalTimeBin() >= 5) {
maxcharge5 = TMath::Abs(cl[best[bestiter][it]][it]->GetQ());
- maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin();
+ maxpos5 = cl[best[bestiter][it]][it]->GetLocalTimeBin();
}
}
+
clusters[it+t0] = indexes[best[bestiter][it]][it];
- //if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>4 && cl[best[bestiter][it]][it]->GetLocalTimeBin()<18) clusters[it+t0] = indexes[best[bestiter][it]][it]; //Test
+
+ // Still needed ????
+ //if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>4 &&
+ //cl[best[bestiter][it]][it]->GetLocalTimeBin()<18) clusters[it+t0]
+ // = indexes[best[bestiter][it]][it]; //Test
+
}
+
//
- // set tracklet parameters
- //
- Double_t trackleterr2 = smoffset[bestiter]+0.01*0.01;
- if (mpads>3.5) trackleterr2 += (mpads-3.5)*0.04;
- trackleterr2+= changes[bestiter]*0.01;
- trackleterr2*= TMath::Max(14.-nfound,1.);
- trackleterr2+= 0.2*(tany-exB)*(tany-exB);
+ // Set tracklet parameters
//
- tracklet.Set(xmean, track2.GetY()+moffset[bestiter], meanz[bestiter], track2.GetAlpha(), trackleterr2); //set tracklet parameters
+ Double_t trackleterr2 = smoffset[bestiter] + 0.01*0.01;
+ if (mpads > 3.5) {
+ trackleterr2 += (mpads - 3.5) * 0.04;
+ }
+ trackleterr2 += changes[bestiter] * 0.01;
+ trackleterr2 *= TMath::Max(14.0 - nfound,1.0);
+ trackleterr2 += 0.2 * (tany-exB)*(tany-exB);
+
+ // Set tracklet parameters
+ tracklet.Set(xmean
+ ,track2.GetY() + moffset[bestiter]
+ ,meanz[bestiter]
+ ,track2.GetAlpha()
+ ,trackleterr2);
tracklet.SetTilt(h01);
tracklet.SetP0(mean[bestiter]);
tracklet.SetP1(angle[bestiter]);
tracklet.SetSigma2(expectederr);
tracklet.SetChi2(tchi2s[bestiter]);
tracklet.SetMaxPos(maxpos,maxpos4,maxpos5);
- track->fTracklets[plane] = tracklet;
- track->fNWrong+=nbad[0];
+ track->SetTracklets(plane,tracklet);
+ track->SetNWrong(track->GetNWrong() + nbad[0]);
+
//
// Debuging part
//
TClonesArray array0("AliTRDcluster");
TClonesArray array1("AliTRDcluster");
- array0.ExpandCreateFast(t1-t0+1);
- array1.ExpandCreateFast(t1-t0+1);
- TTreeSRedirector& cstream = *fDebugStreamer;
+ array0.ExpandCreateFast(t1 - t0 + 1);
+ array1.ExpandCreateFast(t1 - t0 + 1);
+ TTreeSRedirector &cstream = *fDebugStreamer;
AliTRDcluster dummy;
Double_t dy0[100];
Double_t dyb[100];
- for (Int_t it=0;it<t1-t0;it++){
+ for (Int_t it = 0; it < t1 - t0; it++) {
dy0[it] = dy[0][it];
dyb[it] = dy[best[bestiter][it]][it];
- if(cl[0][it]) {
+ if (cl[0][it]) {
new(array0[it]) AliTRDcluster(*cl[0][it]);
}
- else{
+ else {
new(array0[it]) AliTRDcluster(dummy);
}
if(cl[best[bestiter][it]][it]) {
TGraph graph1(t1-t0,x,dyb);
TGraph graphy(t1-t0,x,yt);
TGraph graphz(t1-t0,x,zt);
- //
- //
- cstream<<"tracklet"<<
- "track.="<<track<< // track parameters
- "tany="<<tany<< // tangent of the local track angle
- "xmean="<<xmean<< // xmean - reference x of tracklet
- "tilt="<<h01<< // tilt angle
- "nall="<<nall<< // number of foundable clusters
- "nfound="<<nfound<< // number of found clusters
- "clfound="<<clfound<< // total number of found clusters in road
- "mpads="<<mpads<< // mean number of pads per cluster
- "plane="<<plane<< // plane number
- "road="<<road<< // the width of the used road
- "graph0.="<<&graph0<< // x - y = dy for closest cluster
- "graph1.="<<&graph1<< // x - y = dy for second closest cluster
- "graphy.="<<&graphy<< // y position of the track
- "graphz.="<<&graphz<< // z position of the track
- // "fCl.="<<&array0<< // closest cluster
- //"fCl2.="<<&array1<< // second closest cluster
- "maxpos="<<maxpos<< // maximal charge postion
- "maxcharge="<<maxcharge<< // maximal charge
- "maxpos4="<<maxpos4<< // maximal charge postion - after bin 4
- "maxcharge4="<<maxcharge4<< // maximal charge - after bin 4
- "maxpos5="<<maxpos5<< // maximal charge postion - after bin 5
- "maxcharge5="<<maxcharge5<< // maximal charge - after bin 5
- //
- "bestiter="<<bestiter<< // best iteration number
- "tracklet.="<<&tracklet<< // corrspond to the best iteration
- "tchi20="<<tchi2s[0]<< // chi2 of cluster in the 0 iteration
- "tchi2b="<<tchi2s[bestiter]<< // chi2 of cluster in the best iteration
- "sigmas0="<<sigmas[0]<< // residuals sigma
- "sigmasb="<<sigmas[bestiter]<< // residulas sigma
- //
- "ngood0="<<ngood[0]<< // number of good clusters in 0 iteration
- "nbad0="<<nbad[0]<< // number of bad clusters in 0 iteration
- "ngoodb="<<ngood[bestiter]<< // in best iteration
- "nbadb="<<nbad[bestiter]<< // in best iteration
- //
- "changes0="<<changes[0]<< // changes of pardrows in iteration number 0
- "changesb="<<changes[bestiter]<< // changes of pardrows in best iteration
- //
- "moffset0="<<moffset[0]<< // offset fixing angle in iter=0
- "smoffset0="<<smoffset[0]<< // sigma of offset fixing angle in iter=0
- "moffsetb="<<moffset[bestiter]<< // offset fixing angle in iter=best
- "smoffsetb="<<smoffset[bestiter]<< // sigma of offset fixing angle in iter=best
- //
- "mean0="<<mean[0]<< // mean dy in iter=0;
- "smean0="<<smean[0]<< // sigma of mean dy in iter=0
- "meanb="<<mean[bestiter]<< // mean dy in iter=best
- "smeanb="<<smean[bestiter]<< // sigma of mean dy in iter=best
- //
- "angle0="<<angle[0]<< // angle deviation in the iteration number 0
- "sangle0="<<sangle[0]<< // sigma of angular deviation in iteration number 0
- "angleb="<<angle[bestiter]<< // angle deviation in the best iteration
- "sangleb="<<sangle[bestiter]<< // sigma of angle deviation in the best iteration
- //
- "expectederr="<<expectederr<< // expected error of cluster position
- "\n";
- //
- //
+
+ if (AliTRDReconstructor::StreamLevel() > 0) {
+ cstream << "tracklet"
+ << "track.=" << track // Track parameters
+ << "tany=" << tany // Tangent of the local track angle
+ << "xmean=" << xmean // Xmean - reference x of tracklet
+ << "tilt=" << h01 // Tilt angle
+ << "nall=" << nall // Number of foundable clusters
+ << "nfound=" << nfound // Number of found clusters
+ << "clfound=" << clfound // Total number of found clusters in road
+ << "mpads=" << mpads // Mean number of pads per cluster
+ << "plane=" << plane // Plane number
+ << "detector=" << detector // Detector number
+ << "road=" << road // The width of the used road
+ << "graph0.=" << &graph0 // x - y = dy for closest cluster
+ << "graph1.=" << &graph1 // x - y = dy for second closest cluster
+ << "graphy.=" << &graphy // y position of the track
+ << "graphz.=" << &graphz // z position of the track
+ //<< "fCl.=" << &array0 // closest cluster
+ //<< "fCl2.=" << &array1 // second closest cluster
+ << "maxpos=" << maxpos // Maximal charge postion
+ << "maxcharge=" << maxcharge // Maximal charge
+ << "maxpos4=" << maxpos4 // Maximal charge postion - after bin 4
+ << "maxcharge4=" << maxcharge4 // Maximal charge - after bin 4
+ << "maxpos5=" << maxpos5 // Maximal charge postion - after bin 5
+ << "maxcharge5=" << maxcharge5 // Maximal charge - after bin 5
+ << "bestiter=" << bestiter // Best iteration number
+ << "tracklet.=" << &tracklet // Corrspond to the best iteration
+ << "tchi20=" << tchi2s[0] // Chi2 of cluster in the 0 iteration
+ << "tchi2b=" << tchi2s[bestiter] // Chi2 of cluster in the best iteration
+ << "sigmas0=" << sigmas[0] // Residuals sigma
+ << "sigmasb=" << sigmas[bestiter] // Residulas sigma
+ << "ngood0=" << ngood[0] // Number of good clusters in 0 iteration
+ << "nbad0=" << nbad[0] // Number of bad clusters in 0 iteration
+ << "ngoodb=" << ngood[bestiter] // in best iteration
+ << "nbadb=" << nbad[bestiter] // in best iteration
+ << "changes0=" << changes[0] // Changes of pardrows in iteration number 0
+ << "changesb=" << changes[bestiter] // Changes of pardrows in best iteration
+ << "moffset0=" << moffset[0] // Offset fixing angle in iter=0
+ << "smoffset0=" << smoffset[0] // Sigma of offset fixing angle in iter=0
+ << "moffsetb=" << moffset[bestiter] // Offset fixing angle in iter=best
+ << "smoffsetb=" << smoffset[bestiter] // Sigma of offset fixing angle in iter=best
+ << "mean0=" << mean[0] // Mean dy in iter=0;
+ << "smean0=" << smean[0] // Sigma of mean dy in iter=0
+ << "meanb=" << mean[bestiter] // Mean dy in iter=best
+ << "smeanb=" << smean[bestiter] // Sigma of mean dy in iter=best
+ << "angle0=" << angle[0] // Angle deviation in the iteration number 0
+ << "sangle0=" << sangle[0] // Sigma of angular deviation in iteration number 0
+ << "angleb=" << angle[bestiter] // Angle deviation in the best iteration
+ << "sangleb=" << sangle[bestiter] // Sigma of angle deviation in the best iteration
+ << "expectederr=" << expectederr // Expected error of cluster position
+ << "\n";
+ }
+
return nfound;
-}
+}
-Int_t AliTRDtracker::Freq(Int_t n, const Int_t *inlist, Int_t *outlist, Bool_t down)
+//_____________________________________________________________________________
+Int_t AliTRDtracker::Freq(Int_t n, const Int_t *inlist
+ , Int_t *outlist, Bool_t down)
{
//
- // Sort eleements according occurancy
- // The size of output array has is 2*n
- //
- Int_t * sindexS = new Int_t[n]; // temp array for sorting
- Int_t * sindexF = new Int_t[2*n];
- for (Int_t i=0;i<n;i++) sindexF[i]=0;
- //
- TMath::Sort(n,inlist, sindexS, down);
- Int_t last = inlist[sindexS[0]];
- Int_t val = last;
- sindexF[0] = 1;
- sindexF[0+n] = last;
- Int_t countPos = 0;
+ // Sort eleements according occurancy
+ // The size of output array has is 2*n
//
- // find frequency
- for(Int_t i=1;i<n; i++){
+
+ Int_t *sindexS = new Int_t[n]; // Temporary array for sorting
+ Int_t *sindexF = new Int_t[2*n];
+ for (Int_t i = 0; i < n; i++) {
+ sindexF[i] = 0;
+ }
+
+ TMath::Sort(n,inlist,sindexS,down);
+
+ Int_t last = inlist[sindexS[0]];
+ Int_t val = last;
+ sindexF[0] = 1;
+ sindexF[0+n] = last;
+ Int_t countPos = 0;
+
+ // Find frequency
+ for (Int_t i = 1; i < n; i++) {
val = inlist[sindexS[i]];
- if (last == val) sindexF[countPos]++;
- else{
+ if (last == val) {
+ sindexF[countPos]++;
+ }
+ else {
countPos++;
sindexF[countPos+n] = val;
sindexF[countPos]++;
- last =val;
+ last = val;
}
}
- if (last==val) countPos++;
- // sort according frequency
- TMath::Sort(countPos, sindexF, sindexS, kTRUE);
- for (Int_t i=0;i<countPos;i++){
+ if (last == val) {
+ countPos++;
+ }
+
+ // Sort according frequency
+ TMath::Sort(countPos,sindexF,sindexS,kTRUE);
+
+ for (Int_t i = 0; i < countPos; i++) {
outlist[2*i ] = sindexF[sindexS[i]+n];
outlist[2*i+1] = sindexF[sindexS[i]];
}
+
delete [] sindexS;
delete [] sindexF;
return countPos;
+
}
-AliTRDtrack * AliTRDtracker::RegisterSeed(AliTRDseed * seeds, Double_t * params)
+//_____________________________________________________________________________
+AliTRDtrack *AliTRDtracker::RegisterSeed(AliTRDseed *seeds, Double_t *params)
{
//
+ // Register a seed
//
- //
- Double_t alpha=AliTRDgeometry::GetAlpha();
- Double_t shift=AliTRDgeometry::GetAlpha()/2.;
+
+ Double_t alpha = AliTRDgeometry::GetAlpha();
+ Double_t shift = AliTRDgeometry::GetAlpha()/2.0;
Double_t c[15];
- c[0] = 0.2;
- c[1] = 0 ; c[2] = 2;
- c[3] = 0 ; c[4] = 0; c[5] = 0.02;
- c[6] = 0 ; c[7] = 0; c[8] = 0; c[9] = 0.1;
- c[10] = 0 ; c[11] = 0; c[12] = 0; c[13] = 0.0; c[14] = params[5]*params[5]*0.01;
- //
- Int_t index =0;
- AliTRDcluster *cl =0;
- for (Int_t ilayer=0;ilayer<6;ilayer++){
- if (seeds[ilayer].isOK()){
- for (Int_t itime=22;itime>0;itime--){
- if (seeds[ilayer].fIndexes[itime]>0){
- index = seeds[ilayer].fIndexes[itime];
- cl = seeds[ilayer].fClusters[itime];
+
+ c[ 0] = 0.2;
+ c[ 1] = 0.0; c[ 2] = 2.0;
+ c[ 3] = 0.0; c[ 4] = 0.0; c[ 5] = 0.02;
+ c[ 6] = 0.0; c[ 7] = 0.0; c[ 8] = 0.0; c[ 9] = 0.1;
+ c[10] = 0.0; c[11] = 0.0; c[12] = 0.0; c[13] = 0.0; c[14] = params[5]*params[5]*0.01;
+
+ Int_t index = 0;
+ AliTRDcluster *cl = 0;
+
+ for (Int_t ilayer = 0; ilayer < 6; ilayer++) {
+ if (seeds[ilayer].IsOK()) {
+ for (Int_t itime = 22; itime > 0; itime--) {
+ if (seeds[ilayer].GetIndexes(itime) > 0) {
+ index = seeds[ilayer].GetIndexes(itime);
+ cl = seeds[ilayer].GetClusters(itime);
break;
}
}
}
- if (index>0) break;
+ if (index > 0) {
+ break;
+ }
+ }
+ if (cl == 0) {
+ return 0;
}
- if (cl==0) return 0;
- AliTRDtrack * track = new AliTRDtrack(cl,index,¶ms[1],c, params[0],params[6]*alpha+shift);
- track->PropagateTo(params[0]-5.);
+
+ AliTRDtrack *track = new AliTRDtrack(cl
+ ,index
+ ,¶ms[1]
+ ,c
+ ,params[0]
+ ,params[6]*alpha+shift);
+ track->PropagateTo(params[0]-5.0);
track->ResetCovariance(1);
- //
- Int_t rc=FollowBackProlongation(*track);
- if (rc<30) {
+
+ Int_t rc = FollowBackProlongation(*track);
+ if (rc < 30) {
delete track;
- track =0;
- }else{
+ track = 0;
+ }
+ else {
track->CookdEdx();
CookdEdxTimBin(*track);
- CookLabel(track, 0.9);
- }
- 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++;
- }
- }
+ CookLabel(track,0.9);
}
- 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();
- }
+ return track;
}
+//////////////////////////////////////////////////////////////////////////////////////////
-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 (fN<kClmin) return;
- Int_t nz = AliTRDtracker::Freq(fN,zints,zouts,kFALSE);
- fZProb = zouts[0];
- if (nz<=1) zouts[3]=0;
- if (zouts[1]+zouts[3]<kClmin) return;
- //
- if (TMath::Abs(zouts[0]-zouts[2])>12.) 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]<allowedz[24] && fZref[1]>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]<fZProb) yres[i]-=fTilt*fPadLength;
- }
- }
- }
- //
- Double_t yres2[25];
- Double_t mean,sigma;
- for (Int_t i=0;i<25;i++){
- if (!fClusters[i]) continue;
- if (TMath::Abs(fZ[i]-allowedz[i])>2) continue;
- yres2[fN2] = yres[i];
- fN2++;
- }
- if (fN2<kClmin){
- fN2 = 0;
- return;
- }
- EvaluateUni(fN2,yres2,mean,sigma,Int_t(fN2*ratio-2));
- if (sigma<sigmaexp*0.8) sigma=sigmaexp;
- fSigmaY = sigma;
- //
- //
- // reset sums
- sumw=0; sumwx=0; sumwx2=0;
- sumwy=0; sumwxy=0; sumwz=0;sumwxz=0;
- fN2 =0;
- fMeanz =0;
- fMPads =0;
- //
- for (Int_t i=0;i<25;i++){
- fUsable[i]=kFALSE;
- if (!fClusters[i]) continue;
- if (TMath::Abs(fZ[i]-allowedz[i])>2) 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 (fN2<kClmin){
- fN2 = 0;
- return;
+void AliTRDtracker::InitLogHists() {
+
+ fHBackfit = new TH1D("logTRD_backfit", "", 40, -0.5, 39.5);
+ fHRefit = new TH1D("logTRD_refit", "", 40, -0.5, 39.5);
+ fHClSearch = new TH1D("logTRD_clSearch", "", 60, -0.5, 59.5);
+
+ fHX = new TH1D("logTRD_X", ";x (cm)", 200, 50, 400);
+ fHNCl = new TH1D("logTRD_ncl", "", 40, -0.5, 39.5);
+ fHNClTrack = new TH1D("logTRD_nclTrack", "", 180, -0.5, 179.5);
+
+ fHMinYPos = new TH1D("logTRD_minYPos", ";#delta Y (cm)", 400, -6, 6);
+ fHMinYNeg = new TH1D("logTRD_minYNeg", ";#delta Y (cm)", 400, -6, 6);
+ fHMinZ = new TH1D("logTRD_minZ", ";#delta Z (cm)", 400, -20, 20);
+ fHMinD = new TH2D("logTRD_minD", ";#delta Y (cm);#delta Z (cm)", 100, -6, 6, 100, -50, 50);
+
+ fHDeltaX = new TH1D("logTRD_deltaX", ";#delta X (cm)", 100, -5, 5);
+ fHXCl = new TH1D("logTRD_xCl", ";cluster x position (cm)", 1000, 280, 380);
+
+ const char *nameFindCl[4] = {"logTRD_clY", "logTRD_clZ", "logTRD_clB", "logTRD_clG"};
+
+ for(int i=0; i<4; i++) {
+ fHFindCl[i] = new TH1D(nameFindCl[i], "", 30, -0.5, 29.5);
}
- fMeanz = sumwz/sumw;
- Float_t correction =0;
- if (fNChange>0){
- // tracklet on boundary
- if (fMeanz<fZProb) correction = ycrosscor;
- if (fMeanz>fZProb) 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 AliTRDtracker::SaveLogHists() {
+ TDirectory *sav = gDirectory;
+ TFile *logFile = 0;
-
-
-void AliTRDseed::UpdateUsed(){
- //
- fNUsed =0;
- for (Int_t i=0;i<25;i++){
- if (!fClusters[i]) continue;
- if ((fClusters[i]->IsUsed())) fNUsed++;
+ TSeqCollection *col = gROOT->GetListOfFiles();
+ int N = col->GetEntries();
+ for(int i=0; i<N; i++) {
+ logFile = (TFile*)col->At(i);
+ if (strstr(logFile->GetName(), "AliESDs.root")) break;
}
-}
+
+ logFile->cd();
+ fHBackfit->Write(fHBackfit->GetName(), TObject::kOverwrite);
+ fHRefit->Write(fHRefit->GetName(), TObject::kOverwrite);
+ fHClSearch->Write(fHClSearch->GetName(), TObject::kOverwrite);
+ fHX->Write(fHX->GetName(), TObject::kOverwrite);
+ fHNCl->Write(fHNCl->GetName(), TObject::kOverwrite);
+ fHNClTrack->Write(fHNClTrack->GetName(), TObject::kOverwrite);
+
+ fHMinYPos->Write(fHMinYPos->GetName(), TObject::kOverwrite);
+ fHMinYNeg->Write(fHMinYNeg->GetName(), TObject::kOverwrite);
+ fHMinD->Write(fHMinD->GetName(), TObject::kOverwrite);
+ fHMinZ->Write(fHMinZ->GetName(), TObject::kOverwrite);
+
+ fHDeltaX->Write(fHDeltaX->GetName(), TObject::kOverwrite);
+ fHXCl->Write(fHXCl->GetName(), TObject::kOverwrite);
-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
+ for(int i=0; i<4; i++)
+ fHFindCl[i]->Write(fHFindCl[i]->GetName(), TObject::kOverwrite);
- 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; i<hh; i++){
- sumx += data[index[i]];
- sumx2 += data[index[i]]*data[index[i]];
- }
- //
- Double_t norm = 1./Double_t(hh);
- Double_t norm2 = 1./Double_t(hh-1);
- for (Int_t i=hh; i<nvectors; i++){
- Double_t cmean = sumx*norm;
- Double_t csigma = (sumx2 - hh*cmean*cmean)*norm2;
- if (csigma<bestsigma){
- bestmean = cmean;
- bestsigma = csigma;
- bestindex = i-hh;
- }
- //
- //
- sumx += data[index[i]]-data[index[i-hh]];
- sumx2 += data[index[i]]*data[index[i]]-data[index[i-hh]]*data[index[i-hh]];
- }
+ logFile->Flush();
- Double_t bstd=factor*TMath::Sqrt(TMath::Abs(bestsigma));
- mean = bestmean;
- sigma = bstd;
- delete [] index;
+ sav->cd();
}
-
-Float_t AliTRDseed::FitRiemanTilt(AliTRDseed * cseed, Bool_t terror){
- //
- //
- //
- TLinearFitter fitterT2(4,"hyp4"); // fitting with tilting pads - kz not fixed
- fitterT2.StoreData(kTRUE);
- Float_t xref2 = (cseed[2].fX0+cseed[3].fX0)*0.5; // reference x0 for z
- //
- Int_t npointsT =0;
- fitterT2.ClearPoints();
- for (Int_t iLayer=0; iLayer<6;iLayer++){
- if (!cseed[iLayer].isOK()) continue;
- Double_t tilt = cseed[iLayer].fTilt;
-
- for (Int_t itime=0;itime<25;itime++){
- if (!cseed[iLayer].fUsable[itime]) continue;
- Double_t x = cseed[iLayer].fX[itime]+cseed[iLayer].fX0-xref2; // x relative to the midle chamber
- Double_t y = cseed[iLayer].fY[itime];
- Double_t z = cseed[iLayer].fZ[itime];
- // tilted rieman
- //
- Double_t uvt[6];
- Double_t x2 = cseed[iLayer].fX[itime]+cseed[iLayer].fX0; // global x
- Double_t t = 1./(x2*x2+y*y);
- uvt[1] = t; // t
- uvt[0] = 2.*x2*uvt[1]; // u
- uvt[2] = 2.0*tilt*uvt[1];
- uvt[3] = 2.0*tilt*x*uvt[1];
- uvt[4] = 2.0*(y+tilt*z)*uvt[1];
- //
- Double_t error = 2*uvt[1];
- if (terror) error*=cseed[iLayer].fSigmaY;
- else {error *=0.2;} //default error
- fitterT2.AddPoint(uvt,uvt[4],error);
- npointsT++;
- }
- }
- fitterT2.Eval();
- Double_t rpolz0 = fitterT2.GetParameter(3);
- Double_t rpolz1 = fitterT2.GetParameter(4);
- //
- // linear fitter - not possible to make boundaries
- // non accept non possible z and dzdx combination
- //
- Bool_t acceptablez =kTRUE;
- for (Int_t iLayer=0; iLayer<6;iLayer++){
- if (cseed[iLayer].isOK()){
- Double_t zT2 = rpolz0+rpolz1*(cseed[iLayer].fX0 - xref2);
- if (TMath::Abs(cseed[iLayer].fZProb-zT2)>cseed[iLayer].fPadLength*0.5+1)
- acceptablez = kFALSE;
- }
- }
- if (!acceptablez){
- Double_t zmf = cseed[2].fZref[0]+cseed[2].fZref[1]*(xref2-cseed[2].fX0);
- Double_t dzmf = (cseed[2].fZref[1]+ cseed[3].fZref[1])*0.5;
- fitterT2.FixParameter(3,zmf);
- fitterT2.FixParameter(4,dzmf);
- fitterT2.Eval();
- fitterT2.ReleaseParameter(3);
- fitterT2.ReleaseParameter(4);
- rpolz0 = fitterT2.GetParameter(3);
- rpolz1 = fitterT2.GetParameter(4);
- }
- //
- Double_t chi2TR = fitterT2.GetChisquare()/Float_t(npointsT);
- Double_t params[3];
- params[0] = fitterT2.GetParameter(0);
- params[1] = fitterT2.GetParameter(1);
- params[2] = fitterT2.GetParameter(2);
- Double_t CR = 1+params[1]*params[1]-params[2]*params[0];
- for (Int_t iLayer = 0; iLayer<6;iLayer++){
- Double_t x = cseed[iLayer].fX0;
- Double_t y=0,dy=0, z=0, dz=0;
- // y
- Double_t res2 = (x*params[0]+params[1]);
- res2*=res2;
- res2 = 1.-params[2]*params[0]+params[1]*params[1]-res2;
- if (res2>=0){
- res2 = TMath::Sqrt(res2);
- y = (1-res2)/params[0];
- }
- //dy
- Double_t x0 = -params[1]/params[0];
- if (-params[2]*params[0]+params[1]*params[1]+1>0){
- Double_t Rm1 = params[0]/TMath::Sqrt(-params[2]*params[0]+params[1]*params[1]+1);
- if ( 1./(Rm1*Rm1)-(x-x0)*(x-x0)>0){
- Double_t res = (x-x0)/TMath::Sqrt(1./(Rm1*Rm1)-(x-x0)*(x-x0));
- if (params[0]<0) res*=-1.;
- dy = res;
- }
- }
- z = rpolz0+rpolz1*(x-xref2);
- dz = rpolz1;
- cseed[iLayer].fYref[0] = y;
- cseed[iLayer].fYref[1] = dy;
- cseed[iLayer].fZref[0] = z;
- cseed[iLayer].fZref[1] = dz;
- cseed[iLayer].fC = CR;
- //
- }
- return chi2TR;
-}
+//////////////////////////////////////////////////////////////////////////////////////////
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff