// //
// Authors: //
// M. Ivanov (Marian.Ivanov@cern.ch) //
-// Y. Belikov (Jouri.Belikov@cern.ch) //
// //
///////////////////////////////////////////////////////////////////////////////
-
-#include <Riostream.h>
#include <TBranch.h>
#include <TFile.h>
#include <TGraph.h>
-#include <TH1D.h>
-#include <TH2D.h>
#include <TLinearFitter.h>
#include <TObjArray.h>
#include <TROOT.h>
#include "AliTRDCommonParam.h"
#include "AliTRDtracker.h"
#include "AliTRDReconstructor.h"
+#include "AliTRDrecoParam.h"
#include "AliTRDCalibraFillHisto.h"
ClassImp(AliTRDtracker)
const Float_t AliTRDtracker::fgkMinClustersInTrack = 0.5; //
const Float_t AliTRDtracker::fgkLabelFraction = 0.8; //
const Double_t AliTRDtracker::fgkMaxChi2 = 12.0; //
-const Double_t AliTRDtracker::fgkMaxSnp = 0.95; // Corresponds to tan = 3
+const Double_t AliTRDtracker::fgkMaxSnp = 0.95; // Maximum local sine of the azimuthal angle
const Double_t AliTRDtracker::fgkMaxStep = 2.0; // Maximal step size in propagation
//_____________________________________________________________________________
-AliTRDtracker::AliTRDtracker()
+AliTRDtracker::AliTRDtracker(AliTRDReconstructor *rec)
:AliTracker()
+ ,fReconstructor(rec)
+ ,fGeom(0)
+ ,fNclusters(0)
+ ,fClusters(0)
+ ,fNseeds(0)
+ ,fSeeds(0)
+ ,fNtracks(0)
+ ,fTracks(0)
+ ,fTimeBinsPerPlane(0)
+ ,fAddTRDseeds(kFALSE)
+ ,fNoTilt(kFALSE)
,fHBackfit(0x0)
,fHClSearch(0x0)
,fHRefit(0x0)
,fHMinD(0x0)
,fHDeltaX(0x0)
,fHXCl(0x0)
- ,fGeom(0)
- ,fNclusters(0)
- ,fClusters(0)
- ,fNseeds(0)
- ,fSeeds(0)
- ,fNtracks(0)
- ,fTracks(0)
- ,fTimeBinsPerPlane(0)
- ,fAddTRDseeds(kFALSE)
- ,fNoTilt(kFALSE)
,fDebugStreamer(0)
{
//
for (Int_t i = 0; 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(const AliTRDtracker &t)
:AliTracker(t)
+ ,fReconstructor(t.fReconstructor)
+ ,fGeom(0)
+ ,fNclusters(0)
+ ,fClusters(0)
+ ,fNseeds(0)
+ ,fSeeds(0)
+ ,fNtracks(0)
+ ,fTracks(0)
+ ,fTimeBinsPerPlane(0)
+ ,fAddTRDseeds(kFALSE)
+ ,fNoTilt(kFALSE)
,fHBackfit(0x0)
,fHClSearch(0x0)
,fHRefit(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)
{
//
}
//_____________________________________________________________________________
-AliTRDtracker::AliTRDtracker(const TFile */*geomfile*/)
+AliTRDtracker::AliTRDtracker(const TFile */*geomfile*/, AliTRDReconstructor *rec)
:AliTracker()
+ ,fReconstructor(rec)
+ ,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)
,fHBackfit(0x0)
,fHClSearch(0x0)
,fHRefit(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)
{
//
TDirectory *savedir = gDirectory;
fGeom = new AliTRDgeometry();
- fGeom->ReadGeoMatrices();
for (Int_t geomS = 0; geomS < kTrackingSectors; geomS++) {
Int_t trS = geomS;
fTrSec[trS] = new AliTRDtrackingSector(fGeom,geomS);
- for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) {
- // Could also go ...
- fHoles[icham][trS] = fGeom->IsHole(0,icham,geomS);
- }
}
AliTRDpadPlane *padPlane = fGeom->GetPadPlane(0,0);
// 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);
+ Int_t isector = fGeom->GetSector(lid);
+ Int_t istack = fGeom->GetStack(lid);
+ Int_t ilayer = fGeom->GetLayer(lid);
AliGeomManager::ELayerID iLayer = AliGeomManager::kTRD1;
- switch (iplan) {
+ switch (ilayer) {
case 0:
iLayer = AliGeomManager::kTRD1;
break;
break;
};
- Int_t modId = isector * fGeom->Ncham() + ichamber;
+ Int_t modId = isector * fGeom->Nstack() + istack;
UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,modId);
return volid;
Int_t modId = 0;
AliGeomManager::ELayerID layerId = AliGeomManager::VolUIDToLayer(gid,modId);
- Int_t isector = modId / fGeom->Ncham();
- Int_t ichamber = modId % fGeom->Ncham();
- Int_t iLayer = -1;
+ Int_t isector = modId / fGeom->Nstack();
+ Int_t istack = modId % fGeom->Nstack();
+ Int_t iLayer = -1;
switch (layerId) {
case AliGeomManager::kTRD1:
return -1;
}
- Int_t lid = fGeom->GetDetector(iLayer,ichamber,isector);
+ Int_t lid = fGeom->GetDetector(iLayer,istack,isector);
return lid;
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) {
- //s = (s+1) % ns;
if (!track->Rotate( alpha)) {
return kFALSE;
}
}
else if (y < -ymax) {
- //s = (s-1+ns) % ns;
if (!track->Rotate(-alpha)) {
return kFALSE;
}
if (cli->GetLocalTimeBin() != timebin) {
continue;
}
- Int_t iplane = fGeom->GetPlane(cli->GetDetector());
- if (iplane == plane) {
+ Int_t ilayer = fGeom->GetLayer(cli->GetDetector());
+ if (ilayer == plane) {
cl = cli;
index = indexes[i];
break;
if (!cli) {
break;
}
- Int_t iplane = fGeom->GetPlane(cli->GetDetector());
- if (iplane > lastplane) {
- lastplane = iplane;
+ Int_t ilayer = fGeom->GetLayer(cli->GetDetector());
+ if (ilayer > lastplane) {
+ lastplane = ilayer;
}
}
return lastplane;
}
-
-//_____________________________________________________________________________
-Int_t AliTRDtracker::Clusters2Tracks(AliESDEvent *event)
-{
- //
- // Finds tracks within the TRD. The ESD event is expected to contain seeds
- // at the outer part of the TRD. The seeds
- // are found within the TRD if fAddTRDseeds is TRUE.
- // The tracks are propagated to the innermost time bin
- // of the TRD and the ESD event is updated
- //
-
- 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 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;
- }
- nseed++;
-
- AliTRDtrack *seed2 = new AliTRDtrack(*seed);
- //seed2->ResetCovariance();
- AliTRDtrack *pt = new AliTRDtrack(*seed2,seed2->GetAlpha());
- AliTRDtrack &t = *pt;
- FollowProlongation(t);
- if (t.GetNumberOfClusters() >= foundMin) {
- UseClusters(&t);
- CookLabel(pt,1 - fgkLabelFraction);
- //t.CookdEdx();
- }
- found++;
-
- Double_t xTPC = 250.0;
- if (PropagateToX(t,xTPC,fgkMaxStep)) {
- seed->UpdateTrackParams(pt, AliESDtrack::kTRDin);
- }
- delete seed2;
- delete pt;
-
- }
-
- 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(AliESDEvent *event)
// by the TPC tracker.
//
- 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]);
- 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
- fNseeds++;
- Float_t p4 = track->GetC();
- Int_t expectedClr = FollowBackProlongation(*track);
-
- fHBackfit->Fill(3);
- fHX->Fill(track->GetX());
-
-
- // store the last measurement
- /*
- fHNClTrack->Fill(track->GetNumberOfClusters());
- if (track->GetNumberOfClusters() >= foundMin) {
-
- fHBackfit->Fill(4);
- track->CookdEdx();
- CookdEdxTimBin(*track);
- CookLabel(track,1 - fgkLabelFraction);
- if (track->GetBackupTrack()) {
- //fHBackfit->Fill(5);
- UseClusters(track->GetBackupTrack());
- seed->UpdateTrackParams(track->GetBackupTrack(),AliESDtrack::kTRDbackup);
- }
- }
- */
-
- /**/
- // inter-tracks competition ???
- if ((TMath::Abs(track->GetC() - p4) / TMath::Abs(p4) < 0.2) ||
- (track->Pt() > 0.8)) {
-
- fHBackfit->Fill(4);
-
- //
- // Make backup for back propagation
- //
-
- Int_t foundClr = track->GetNumberOfClusters();
- if (foundClr >= foundMin) {
- track->CookdEdx();
- track->CookdEdxTimBin(seed->GetID()); // A.Bercuci 25.07.07
- CookLabel(track,1 - fgkLabelFraction);
- if (track->GetBackupTrack()) {
- UseClusters(track->GetBackupTrack());
- }
-
- // Sign only gold tracks
- if (track->GetChi2() / track->GetNumberOfClusters() < 4) {
- if ((seed->GetKinkIndex(0) == 0) &&
- (track->Pt() < 1.5)) {
- UseClusters(track);
- }
- }
- Bool_t isGold = kFALSE;
+ Int_t found = 0; // number of tracks found
+ Float_t foundMin = 20.0;
- // 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()
- }
-
- // 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);
- isGold = kTRUE;
- }
+ Int_t nSeed = event->GetNumberOfTracks();
+ if(!nSeed){
+ // run stand alone tracking
+ if (fReconstructor->IsSeeding()) Clusters2Tracks(event);
+ return 0;
}
-
- if ((track->StatusForTOF() > 0) &&
- (track->GetNCross() == 0) &&
- (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) {
- //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup);
+
+ Float_t *quality = new Float_t[nSeed];
+ Int_t *index = new Int_t[nSeed];
+ for (Int_t iSeed = 0; iSeed < nSeed; iSeed++) {
+ AliESDtrack *seed = event->GetTrack(iSeed);
+ Double_t covariance[15];
+ seed->GetExternalCovariance(covariance);
+ quality[iSeed] = covariance[0] + covariance[2];
}
-
- }
- }
- /**/
-
- /**/
- // Debug part of tracking
- TTreeSRedirector &cstream = *fDebugStreamer;
- Int_t eventNrInFile = event->GetEventNumberInFile(); // This is most likely NOT the event number you'd like to use. It has nothing to do with the 'real' event number.
- if (AliTRDReconstructor::StreamLevel() > 0) {
- if (track->GetBackupTrack()) {
- cstream << "Tracks"
- << "EventNrInFile=" << eventNrInFile
- << "ESD.=" << seed
- << "trd.=" << track
- << "trdback.=" << track->GetBackupTrack()
- << "\n";
- }
- else {
- cstream << "Tracks"
- << "EventNrInFile=" << eventNrInFile
- << "ESD.=" << seed
- << "trd.=" << track
- << "trdback.=" << track
- << "\n";
- }
- }
- /**/
-
- // 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) {
+ // Sort tracks according to covariance of local Y and Z
+ TMath::Sort(nSeed,quality,index,kFALSE);
- fHBackfit->Fill(6);
- delete track;
- continue;
- }
-
- PropagateToX(*track,xTOF0,fgkMaxStep);
+ // Backpropagate all seeds
+ for (Int_t iSeed = 0; iSeed < nSeed; iSeed++) {
+
+ // Get the seeds in sorted sequence
+ AliESDtrack *seed = event->GetTrack(index[iSeed]);
+ fHBackfit->Fill(0); // All seeds
+
+ // Check the seed status
+ ULong_t status = seed->GetStatus();
+ if ((status & AliESDtrack::kTPCout) == 0) {
+ fHBackfit->Fill(1); // TPC outer edge reached
+ continue;
+ }
+ if ((status & AliESDtrack::kTRDout) != 0) {
+ fHBackfit->Fill(2); // TRD outer edge reached (does this happen ?)
+ continue;
+ }
+
+ // Do the back prolongation
+ Int_t lbl = seed->GetLabel();
+ AliTRDtrack *track = new AliTRDtrack(*seed);
+ track->SetSeedLabel(lbl);
+ seed->UpdateTrackParams(track,AliESDtrack::kTRDbackup); // Make backup
+ fNseeds++;
+ Float_t p4 = track->GetC();
+ Int_t expectedClr = FollowBackProlongation(*track);
+ fHBackfit->Fill(3); // Back prolongation done
+ fHX->Fill(track->GetX());
+
+ if ((TMath::Abs(track->GetC() - p4) / TMath::Abs(p4) < 0.2) ||
+ (track->Pt() > 0.8)) {
+
+ fHBackfit->Fill(4);
+
+ //
+ // Make backup for back propagation
+ //
+
+ Int_t foundClr = track->GetNumberOfClusters();
+ if (foundClr >= foundMin) {
+ track->CookdEdx();
+ track->CookdEdxTimBin(seed->GetID()); // A.Bercuci 25.07.07
+ CookLabel(track,1 - fgkLabelFraction);
+ if (track->GetBackupTrack()) UseClusters(track->GetBackupTrack());
+
+
+ // Sign only gold tracks
+ if (track->GetChi2() / track->GetNumberOfClusters() < 4) {
+ if ((seed->GetKinkIndex(0) == 0) &&
+ (track->Pt() < 1.5)) {
+ UseClusters(track);
+ }
+ }
+ Bool_t isGold = kFALSE;
+
+ // 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()
+ }
+
+ // 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);
+ isGold = kTRUE;
+ }
+ }
+
+ if ((track->StatusForTOF() > 0) && (track->GetNCross() == 0) && (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) {
+ //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup);
+ }
+ }
+ }
+ /**/
+
+ /**/
+ // Debug part of tracking
+ TTreeSRedirector &cstream = *fDebugStreamer;
+ Int_t eventNrInFile = event->GetEventNumberInFile(); // This is most likely NOT the event number you'd like to use. It has nothing to do with the 'real' event number.
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0) {
+ if (track->GetBackupTrack()) {
+ cstream << "Tracks"
+ << "EventNrInFile=" << eventNrInFile
+ << "ESD.=" << seed
+ << "trd.=" << track
+ << "trdback.=" << track->GetBackupTrack()
+ << "\n";
+ }
+ else {
+ cstream << "Tracks"
+ << "EventNrInFile=" << eventNrInFile
+ << "ESD.=" << seed
+ << "trd.=" << track
+ << "trdback.=" << track
+ << "\n";
+ }
+ }
+ /**/
+
+ // Propagation to the TOF (I.Belikov)
+ if (track->GetStop() == kFALSE) {
+ 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;
+ }
+
+ PropagateToX(*track,xTOF0,fgkMaxStep);
+
+ // 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;
+ }
+
+ //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) {
+ if (!track->Rotate(-AliTRDgeometry::GetAlpha())) {
+ fHBackfit->Fill(9);
+ delete track;
+ continue;
+ }
+ }
+
+ if (track->PropagateTo(xtof)) {
+ seed->UpdateTrackParams(track,AliESDtrack::kTRDout);
+ fHBackfit->Fill(10);
+
+ seed->SetNumberOfTRDslices(AliTRDtrack::kNslice);
+ for (Int_t i = 0; i < AliTRDtrack::kNplane; i++) {
+ for (Int_t j = 0; j < AliTRDtrack::kNslice; j++) {
+ seed->SetTRDslice(track->GetPIDsignals(i,j),i,j);
+ }
+ seed->SetTRDTimBin(track->GetPIDTimBin(i),i);
+ }
+ //seed->SetTRDtrack(new AliTRDtrack(*track));
+ if (track->GetNumberOfClusters() > foundMin) {
+ fHBackfit->Fill(11);
+ found++;
+ }
+ }
+ }
+ else {
+ fHBackfit->Fill(12);
+
+ if ((track->GetNumberOfClusters() > 15) &&
+ (track->GetNumberOfClusters() > 0.5*expectedClr)) {
+ seed->UpdateTrackParams(track,AliESDtrack::kTRDout);
+ fHBackfit->Fill(13);
+
+ //seed->SetStatus(AliESDtrack::kTRDStop);
- // Energy losses taken to the account - check one more time
- c2 = track->GetSnp() + track->GetC() * (xtof - track->GetX());
- if (TMath::Abs(c2) >= 0.99) {
+ seed->SetNumberOfTRDslices(AliTRDtrack::kNslice);
+ for (Int_t i = 0; i < AliTRDtrack::kNplane; i++) {
+ for (Int_t j = 0; j <AliTRDtrack::kNslice; j++) {
+ seed->SetTRDslice(track->GetPIDsignals(i,j),i,j);
+ }
+ seed->SetTRDTimBin(track->GetPIDTimBin(i),i);
+ }
+ //seed->SetTRDtrack(new AliTRDtrack(*track));
+ found++;
+ }
+ }
- fHBackfit->Fill(7);
- delete track;
- continue;
- }
-
- //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) {
- if (!track->Rotate(-AliTRDgeometry::GetAlpha())) {
- fHBackfit->Fill(9);
- delete track;
- continue;
- }
- }
-
- if (track->PropagateTo(xtof)) {
- seed->UpdateTrackParams(track,AliESDtrack::kTRDout);
- fHBackfit->Fill(10);
-
- for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) {
- for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) {
- seed->SetTRDsignals(track->GetPIDsignals(i,j),i,j);
- }
- seed->SetTRDTimBin(track->GetPIDTimBin(i),i);
- }
- //seed->SetTRDtrack(new AliTRDtrack(*track));
- if (track->GetNumberOfClusters() > foundMin) {
- fHBackfit->Fill(11);
- found++;
+ seed->SetTRDQuality(track->StatusForTOF());
+ seed->SetTRDBudget(track->GetBudget(0));
+
+ fHBackfit->Fill(14);
+ delete track;
}
- }
-
- }
- else {
-
- fHBackfit->Fill(12);
-
- if ((track->GetNumberOfClusters() > 15) &&
- (track->GetNumberOfClusters() > 0.5*expectedClr)) {
- seed->UpdateTrackParams(track,AliESDtrack::kTRDout);
- fHBackfit->Fill(13);
-
- //seed->SetStatus(AliESDtrack::kTRDStop);
- for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) {
- for (Int_t j = 0; j <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->GetBudget(0));
-
- fHBackfit->Fill(14);
- delete track;
- }
-
- AliInfo(Form("Number of seeds: %d",fNseeds));
- AliInfo(Form("Number of back propagated TRD tracks: %d",found));
-
- // New seeding
- if (AliTRDReconstructor::SeedingOn()) {
- MakeSeedsMI(3,5,event);
- }
-
- fSeeds->Clear();
- fNseeds = 0;
-
- delete [] index;
- delete [] quality;
-
- SaveLogHists();
+ AliInfo(Form("Number of seeds: %d",fNseeds));
+ AliInfo(Form("Number of back propagated TRD tracks: %d",found));
+
+ fSeeds->Clear();
+ fNseeds = 0;
+
+ delete [] index;
+ delete [] quality;
+
+ SaveLogHists();
return 0;
}
// Origin: Thomas KUHR (Thomas.Kuhr@cern.ch)
//
- Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins();
- Float_t foundMin = fgkMinClustersInTrack * timeBins;
+ //Int_t timeBins = fTrSec[0]->GetNumberOfTimeBins();
+ //Float_t foundMin = fgkMinClustersInTrack * timeBins;
Int_t nseed = 0;
Int_t found = 0;
Int_t pidQ = 0;
//Int_t innerTB = fTrSec[0]->GetInnerTimeBin();
AliTRDtrack seed2;
+ // Calibration fill 2D
+ AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance();
+ if (!calibra) {
+ AliInfo("Could not get Calibra instance\n");
+ }
+
Int_t n = event->GetNumberOfTracks();
for (Int_t i = 0; i < n; i++) {
AliTRDtrack *pt = new AliTRDtrack(seed2,seed2.GetAlpha());
Int_t *indexes2 = seed2.GetIndexes();
- for (Int_t i = 0; i < AliESDtrack::kNPlane;i++) {
- for (Int_t j = 0; j < AliESDtrack::kNSlice;j++) {
- pt->SetPIDsignals(seed2.GetPIDsignals(i,j),i,j);
+ for (Int_t l = 0; l < AliTRDtrack::kNplane;++l) {
+ for (Int_t j = 0; j < AliTRDtrack::kNslice;j++) {
+ pt->SetPIDsignals(seed2.GetPIDsignals(l,j),l,j);
}
- pt->SetPIDTimBin(seed2.GetPIDTimBin(i),i);
+ pt->SetPIDTimBin(seed2.GetPIDTimBin(l),l);
}
Int_t *indexes3 = pt->GetBackupIndexes();
- for (Int_t i = 0; i < 200;i++) {
- if (indexes2[i] == 0) {
+ for (Int_t l = 0; l < 200;++l) {
+ if (indexes2[l] == 0) {
break;
}
- indexes3[i] = indexes2[i];
+ indexes3[l] = indexes2[l];
}
- //AliTRDtrack *pt = seed2;
- //AliTRDtrack &t = *pt;
FollowProlongation(*pt);
- //if (pt->GetNumberOfClusters() >= foundMin) {
- //UseClusters(&t);
- //CookLabel(pt, 1-fgkLabelFraction);
- pt->CookdEdx();
- pt->CookdEdxTimBin(seed->GetID());
- pt->SetPIDMethod(AliTRDtrack::kLQ); //switch between TRD PID methods
- pt->CookPID(pidQ);
- //pt->Calibrate(); // slot for calibration
- //}
+ pt->CookdEdx();
+ pt->CookdEdxTimBin(seed->GetID());
+
+ //calculate PID methods
+ pt->SetPIDMethod(AliTRDtrack::kLQ);
+ pt->CookPID(pidQ);
+ seed->SetTRDpid(pt->GetPID());
+ seed->SetTRDpidQuality(pidQ);
+
+ // update calibration
+ if(calibra->GetHisto2d()) calibra->UpdateHistograms(pt);
found++;
Double_t xTPC = 250.0;
if (PropagateToX(*pt,xTPC,fgkMaxStep)) {
-
seed->UpdateTrackParams(pt,AliESDtrack::kTRDrefit);
fHRefit->Fill(5);
- for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) {
- for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) {
- seed->SetTRDsignals(pt->GetPIDsignals(i,j),i,j);
- }
- seed->SetTRDTimBin(pt->GetPIDTimBin(i),i);
+ for (Int_t l = 0; l < AliTRDtrack::kNplane; ++l) {
+ for (Int_t j = 0; j < AliTRDtrack::kNslice; j++) {
+ seed->SetTRDslice(pt->GetPIDsignals(l,j),l,j);
+ }
+ seed->SetTRDTimBin(pt->GetPIDTimBin(l),l);
}
- }
- else {
+ } 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;
+ AliTRDtrack *seed2t = new AliTRDtrack(*seed);
+ seed2t->ResetCovariance(5.0);
+ AliTRDtrack *pt2 = new AliTRDtrack(*seed2t,seed2t->GetAlpha());
+ delete seed2t;
+
if (PropagateToX(*pt2,xTPC,fgkMaxStep)) {
- pt2->CookdEdx( );
+ pt2->CookdEdx();
pt2->CookdEdxTimBin(seed->GetID());
- seed->UpdateTrackParams(pt2,AliESDtrack::kTRDrefit);
- fHRefit->Fill(6);
-
- for (Int_t i = 0; i < AliESDtrack::kNPlane; i++) {
- for (Int_t j = 0; j < AliESDtrack::kNSlice; j++) {
- seed->SetTRDsignals(pt2->GetPIDsignals(i,j),i,j);
- }
- seed->SetTRDTimBin(pt2->GetPIDTimBin(i),i);
+ seed->UpdateTrackParams(pt2,AliESDtrack::kTRDrefit);
+ fHRefit->Fill(6);
+
+ for (Int_t l = 0; l < AliTRDtrack::kNplane; ++l) {
+ for (Int_t j = 0; j < AliTRDtrack::kNslice; j++) {
+ seed->SetTRDslice(pt2->GetPIDsignals(l,j),l,j);
+ }
+ seed->SetTRDTimBin(pt2->GetPIDTimBin(l),l);
}
}
- // Add TRD track to ESDfriendTrack - maybe this tracks are not useful for post-processing - TODO make decission
- if (AliTRDReconstructor::StreamLevel() > 0) {
+ // Add TRD track to ESDfriendTrack - maybe this tracks are
+ // not useful for post-processing - TODO make decision
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0) {
seed->AddCalibObject(new AliTRDtrack(*pt2/*, kTRUE*/));
}
delete pt2;
+
}
// Add TRD track to ESDfriendTrack
- if (AliTRDReconstructor::StreamLevel() > 0) {
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0) {
seed->AddCalibObject(new AliTRDtrack(*pt/*, kTRUE*/));
}
delete pt;
AliInfo(Form("Number of found tracks from loaded seeds: %d",found));
SaveLogHists();
+
return 0;
+
}
//_____________________________________________________________________________
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
- //
+ //
+ // 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 xx0 = 0.0;
- Double_t xrho= 0.0;
- Int_t expectedNumberOfClusters = 0;
+ Int_t sector;
+ Int_t lastplane = GetLastPlane(&t);
+ Double_t xx0 = 0.0;
+ Double_t xrho= 0.0;
+ Int_t expectedNumberOfClusters = 0;
- for (Int_t iplane = lastplane; iplane >= 0; iplane--) {
+ for (Int_t iplane = lastplane; iplane >= 0; iplane--) {
- Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1);
- Int_t rowlast = GetGlobalTimeBin(0,iplane,0);
+ Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1);
+ Int_t rowlast = GetGlobalTimeBin(0,iplane,0);
- //
- // Propagate track close to the plane if neccessary
- //
- Double_t currentx = fTrSec[0]->GetLayer(rowlast)->GetX();
- if (currentx < (-fgkMaxStep + t.GetX())) {
- // Propagate closer to chamber - safety space fgkMaxStep
- if (!PropagateToX(t,currentx+fgkMaxStep,fgkMaxStep)) {
- break;
- }
- }
+ // Propagate track close to the plane if neccessary
+ Double_t currentx = fTrSec[0]->GetLayer(rowlast)->GetX();
+ if (currentx < (-fgkMaxStep + t.GetX())) {
+ // Propagate closer to chamber - safety space fgkMaxStep
+ if (!PropagateToX(t,currentx+fgkMaxStep,fgkMaxStep)) {
+ break;
+ }
+ }
- if (!AdjustSector(&t)) {
- break;
- }
+ if (!AdjustSector(&t)) {
+ break;
+ }
- //
- // Get material budget
- //
- Double_t xyz0[3];
- Double_t xyz1[3];
- Double_t param[7];
- Double_t x;
- Double_t y;
- Double_t z;
-
- // Starting global position
- t.GetXYZ(xyz0);
- // End global position
- x = fTrSec[0]->GetLayer(row0)->GetX();
- if (!t.GetProlongation(x,y,z)) {
- break;
- }
- xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha());
- xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha());
- xyz1[2] = z;
- AliTracker::MeanMaterialBudget(xyz0,xyz1,param);
- xrho= param[0]*param[4];
- xx0 = param[1]; // Get mean propagation parameters
- // A.Bercuci 25.07.07
- // Flags for marking the track momentum and direction. The track is
- // marked only if it has at least 1 cluster picked up in the current
- // chamber.
- Bool_t kUPDATED = kFALSE, kMARKED = kFALSE;
+ // Get material budget
+ Double_t xyz0[3];
+ Double_t xyz1[3];
+ Double_t param[7];
+ Double_t x;
+ Double_t y;
+ Double_t z;
- //
- // Propagate and update
- //
- sector = t.GetSector();
- //for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) {
- for (Int_t itime = 0 ; itime < GetTimeBinsPerPlane(); itime++) {
- // A.Bercuci 25.07.07
- // Mark track kinematics
- if(itime > 10 && kUPDATED && !kMARKED){
- t.SetTrackSegmentDirMom(iplane);
- kMARKED = kTRUE;
- }
+ // 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;
+ AliTracker::MeanMaterialBudget(xyz0,xyz1,param);
+ xrho= param[0]*param[4];
+ xx0 = param[1]; // Get mean propagation parameters
- 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();
+ // Flags for marking the track momentum and direction. The track is
+ // marked only if it has at least 1 cluster picked up in the current
+ // chamber.
+ Bool_t kUPDATED = kFALSE;
+ Bool_t kMARKED = kFALSE;
- if (timeBin) {
+ // Propagate and update
+ sector = t.GetSector();
+ //for (Int_t itime=GetTimeBinsPerPlane()-1;itime>=0;itime--) {
+ for (Int_t itime = 0 ; itime < GetTimeBinsPerPlane(); itime++) {
- AliTRDcluster *cl0 = timeBin[0];
- if (!cl0) {
- // No clusters in given time bin
- continue;
- }
+ // Mark track kinematics
+ if (itime > 10 && kUPDATED && !kMARKED) {
+ t.SetTrackSegmentDirMom(iplane);
+ kMARKED = kTRUE;
+ }
- Int_t plane = fGeom->GetPlane(cl0->GetDetector());
- if (plane > lastplane) {
- continue;
- }
+ 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();
- Int_t timebin = cl0->GetLocalTimeBin();
- AliTRDcluster *cl2 = GetCluster(&t,plane,timebin,index);
+ if (timeBin) {
- if (cl2) {
- cl = cl2;
- //Double_t h01 = GetTiltFactor(cl); //I.B's fix
- //maxChi2=t.GetPredictedChi2(cl,h01);
- }
- if (cl) {
- //if (cl->GetNPads()<5)
- Double_t dxsample = timeBin.GetdX();
- t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample));
- Double_t h01 = GetTiltFactor(cl);
- Int_t det = cl->GetDetector();
- Int_t plane = fGeom->GetPlane(det);
- if (t.GetX() > 345.0) {
- t.SetNLast(t.GetNLast() + 1);
- t.SetChi2Last(t.GetChi2Last() + maxChi2);
- }
+ AliTRDcluster *cl0 = timeBin[0];
+ if (!cl0) {
+ // No clusters in given time bin
+ continue;
+ }
+
+ Int_t layer = fGeom->GetLayer(cl0->GetDetector());
+ if (layer > lastplane) {
+ continue;
+ }
+
+ Int_t timebin = cl0->GetLocalTimeBin();
+ AliTRDcluster *cl2 = GetCluster(&t,layer,timebin,index);
+
+ if (cl2) {
+ cl = cl2;
+ //Double_t h01 = GetTiltFactor(cl); //I.B's fix
+ //maxChi2=t.GetPredictedChi2(cl,h01);
+ }
+
+ if (cl) {
+
+ //if (cl->GetNPads()<5)
+ Double_t dxsample = timeBin.GetdX();
+ t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample));
+ Double_t h01 = GetTiltFactor(cl);
+ Int_t det = cl->GetDetector();
+ Int_t llayer = fGeom->GetLayer(det);
+
+ if (t.GetX() > 345.0) {
+ t.SetNLast(t.GetNLast() + 1);
+ t.SetChi2Last(t.GetChi2Last() + maxChi2);
+ }
+
+ Double_t xcluster = cl->GetX();
+ t.PropagateTo(xcluster,xx0,xrho);
+ if (!AdjustSector(&t)) {
+ break; //I.B's fix
+ }
+
+ maxChi2 = t.GetPredictedChi2(cl,h01);
+ if (maxChi2 < 1e+10) {
+ if (!t.UpdateMI(cl,maxChi2,index,h01,llayer)) {
+ // ????
+ }
+ else {
+ //SetCluster(cl, GetNumberOfClusters()-1);
+ kUPDATED = kTRUE;
+ }
+ }
- Double_t xcluster = cl->GetX();
- t.PropagateTo(xcluster,xx0,xrho);
-
- if (!AdjustSector(&t)) {
- break; //I.B's fix
- }
- maxChi2 = t.GetPredictedChi2(cl,h01);
-
- if (maxChi2<1e+10)
- if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) {
- // ????
- } else {
- // A.Bercuci 25.07.07
- //SetCluster(cl, GetNumberOfClusters()-1);
- kUPDATED = kTRUE;
- }
- }
- }
- }
}
- return expectedNumberOfClusters;
+ }
+
+ }
+
+ }
+
+ return expectedNumberOfClusters;
+
}
//_____________________________________________________________________________
{
//
// Starting from current radial position of track <t> this function
- // extrapolates the track up to outer timebin and in the sensitive
+ // extrapolates the track up to the outer timebin and in the sensitive
// layers confirms prolongation if a close cluster is found.
// Returns the number of clusters expected to be found in sensitive layers
- // Use GEO manager for material Description
+ // Uses the geomanager for material description
//
// return number of assigned clusters ?
//
+ Int_t sector;
+
+ Double_t xx0 = 0.0;
+ Double_t xrho = 0.0;
+
+ Float_t ratio0 = 0.0;
- Int_t sector;
- Int_t clusters[1000];
- Double_t xx0 = 0.0;
- Double_t xrho = 0.0;
Int_t expectedNumberOfClusters = 0;
- Float_t ratio0 = 0.0;
- AliTRDtracklet tracklet;
- // Calibration fill 2D
- AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance();
- if (!calibra) {
- AliInfo("Could not get Calibra instance\n");
- }
- if (calibra->GetMITracking()) {
- calibra->ResetTrack();
- }
+ AliTRDtracklet tracklet;
- for (Int_t i = 0; i < 1000; i++) {
+ const Int_t kNclusters = 1000;
+ Int_t clusters[kNclusters];
+ for (Int_t i = 0; i < kNclusters; i++) {
clusters[i] = -1;
}
- for (Int_t iplane = 0; iplane < AliESDtrack::kNPlane; iplane++) {
+// // Calibration fill 2D
+// AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance();
+// if (!calibra) {
+// AliInfo("Could not get Calibra instance\n");
+// }
+// if (calibra->GetMITracking()) {
+// calibra->ResetTrack();
+// }
+
+ // Loop through the TRD planes
+ for (Int_t iplane = 0; iplane < AliTRDtrack::kNplane; iplane++) {
- int hb = iplane * 10;
+ Int_t hb = iplane * 10;
fHClSearch->Fill(hb);
+ // Get the global time bin numbers for the first an last
+ // local time bin of the given plane
Int_t row0 = GetGlobalTimeBin(0,iplane,GetTimeBinsPerPlane()-1);
Int_t rowlast = GetGlobalTimeBin(0,iplane,0);
+
+ // Get the X coordinates of the propagation layer for the first time bin
Double_t currentx = fTrSec[0]->GetLayer(row0)->GetX();
if (currentx < t.GetX()) {
fHClSearch->Fill(hb+1);
continue;
}
- //
- // Propagate closer to chamber if neccessary
- //
+ // Propagate closer to the current chamber if neccessary
if (currentx > (fgkMaxStep + t.GetX())) {
if (!PropagateToX(t,currentx-fgkMaxStep,fgkMaxStep)) {
fHClSearch->Fill(hb+2);
break;
}
}
+
+ // Rotate track to adjacent sector if neccessary
if (!AdjustSector(&t)) {
fHClSearch->Fill(hb+3);
break;
}
+
+ // Check whether azimuthal angle is getting too large
if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) {
fHClSearch->Fill(hb+4);
break;
}
- //
- // Get material budget inside of chamber
- //
Double_t xyz0[3];
Double_t xyz1[3];
Double_t param[7];
Double_t x;
Double_t y;
Double_t z;
- // Starting global position
+ // Global start position (beginning of chamber)
t.GetXYZ(xyz0);
- // End global position
+ // X-position of the end of the chamber
x = fTrSec[0]->GetLayer(rowlast)->GetX();
+ // Get local Y and Z at the X-position of the end of the chamber
if (!t.GetProlongation(x,y,z)) {
fHClSearch->Fill(hb+5);
break;
}
+ // Global end position (end of chamber)
xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha());
xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha());
xyz1[2] = z;
+
+ // Calculate the mean material budget along the path inside the chamber
AliTracker::MeanMaterialBudget(xyz0,xyz1,param);
+ // The mean propagation parameters (density*length and radiation length)
xrho = param[0]*param[4];
- xx0 = param[1]; // Get mean propagation parameters
+ xx0 = param[1];
- //
- // Find clusters
- //
- sector = t.GetSector();
+ // Find the clusters and tracklet along the path inside the chamber
+ sector = t.GetSector();
Float_t ncl = FindClusters(sector,row0,rowlast,&t,clusters,tracklet);
fHNCl->Fill(tracklet.GetN());
+ // Discard if in less than 1/3 of the available timebins
+ // clusters are found
if (tracklet.GetN() < GetTimeBinsPerPlane()/3) {
fHClSearch->Fill(hb+6);
continue;
// Propagate and update track
//
for (Int_t itime = GetTimeBinsPerPlane()-1; itime >= 0; itime--) {
-
Int_t ilayer = GetGlobalTimeBin(0, iplane,itime);
expectedNumberOfClusters++;
t.SetNExpected(t.GetNExpected() + 1);
x = timeBin.GetX();
if (timeBin) {
-
- if (clusters[ilayer] > 0) {
- index = clusters[ilayer];
- cl = (AliTRDcluster *)GetCluster(index);
- //Double_t h01 = GetTiltFactor(cl); // I.B's fix
- //maxChi2=t.GetPredictedChi2(cl,h01); //
- }
+ if (clusters[ilayer] > 0) {
+ index = clusters[ilayer];
+ cl = (AliTRDcluster *)GetCluster(index);
+ //Double_t h01 = GetTiltFactor(cl); // I.B's fix
+ //maxChi2=t.GetPredictedChi2(cl,h01); //
+ }
if (cl) {
+ //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 layer = fGeom->GetLayer(det);
+ if (t.GetX() > 345.0) {
+ t.SetNLast(t.GetNLast() + 1);
+ t.SetChi2Last(t.GetChi2Last() + maxChi2);
+ }
+ Double_t xcluster = cl->GetX();
+ t.PropagateTo(xcluster,xx0,xrho);
+ maxChi2 = t.GetPredictedChi2(cl,h01);
- //if (cl->GetNPads() < 5)
- Double_t dxsample = timeBin.GetdX();
- t.SetSampledEdx(TMath::Abs(cl->GetQ()/dxsample));
- Double_t h01 = GetTiltFactor(cl);
- Int_t det = cl->GetDetector();
- Int_t plane = fGeom->GetPlane(det);
- if (t.GetX() > 345.0) {
- t.SetNLast(t.GetNLast() + 1);
- t.SetChi2Last(t.GetChi2Last() + maxChi2);
- }
- Double_t xcluster = cl->GetX();
- t.PropagateTo(xcluster,xx0,xrho);
- maxChi2 = t.GetPredictedChi2(cl,h01);
-
- if (maxChi2<1e+10)
- if (!t.UpdateMI(cl,maxChi2,index,h01,plane)) {
- if (!t.Update(cl,maxChi2,index,h01)) {
- // ????
- }
- } // else SetCluster(cl, GetNumberOfClusters()-1); // A.Bercuci 25.07.07
+ if (maxChi2<1e+10)
+ if (!t.UpdateMI(cl,maxChi2,index,h01,layer)) {
+ if (!t.Update(cl,maxChi2,index,h01)) {
+ // ????
+ }
+ } // else SetCluster(cl, GetNumberOfClusters()-1); // A.Bercuci 25.07.07
- if (calibra->GetMITracking()) {
- calibra->UpdateHistograms(cl,&t);
- }
-
- // Reset material budget if 2 consecutive gold
- if (plane > 0) {
- if ((t.GetTracklets(plane).GetN() + t.GetTracklets(plane-1).GetN()) > 20) {
- t.SetBudget(2,0.0);
- }
- }
+// if (calibra->GetMITracking()) {
+// calibra->UpdateHistograms(cl,&t);
+// }
- }
+ // Reset material budget if 2 consecutive gold
+ if (layer > 0) {
+ if ((t.GetTracklets(layer).GetN() + t.GetTracklets(layer-1).GetN()) > 20) {
+ t.SetBudget(2,0.0);
+ }
+ }
+
+ }
}
}
return expectedNumberOfClusters;
+
}
//_____________________________________________________________________________
Int_t AliTRDtracker::PropagateToX(AliTRDtrack &t, Double_t xToGo, Double_t maxStep)
{
//
- // Starting from current radial position of track <t> this function
+ // Starting from current X-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());
+
+ // Current track X-position
Double_t xpos = t.GetX();
- Double_t dir = (xpos<xToGo) ? 1.0 : -1.0;
- while (((xToGo-xpos)*dir) > kEpsilon) {
+ // Direction: inward or outward
+ Double_t dir = (xpos < xToGo) ? 1.0 : -1.0;
- Double_t step = dir * TMath::Min(TMath::Abs(xToGo-xpos),maxStep);
+ while (((xToGo - xpos) * dir) > kEpsilon) {
Double_t xyz0[3];
Double_t xyz1[3];
Double_t x;
Double_t y;
Double_t z;
- // Starting global position
- t.GetXYZ(xyz0);
+
+ // The next step size
+ Double_t step = dir * TMath::Min(TMath::Abs(xToGo-xpos),maxStep);
+
+ // Get the global position of the starting point
+ t.GetXYZ(xyz0);
+
+ // X-position after next step
x = xpos + step;
+ // Get local Y and Z at the X-position of the next step
if (!t.GetProlongation(x,y,z)) {
- return 0; // No prolongation
+ return 0; // No prolongation possible
}
+ // The global position of the end point of this prolongation step
xyz1[0] = x * TMath::Cos(t.GetAlpha()) - y * TMath::Sin(t.GetAlpha());
xyz1[1] = +x * TMath::Sin(t.GetAlpha()) + y * TMath::Cos(t.GetAlpha());
xyz1[2] = z;
- AliTracker::MeanMaterialBudget(xyz0,xyz1,param);
+ // Calculate the mean material budget between start and
+ // end point of this prolongation step
+ AliTracker::MeanMaterialBudget(xyz0,xyz1,param);
+
+ // Propagate the track to the X-position after the next step
if (!t.PropagateTo(x,param[1],param[0]*param[4])) {
return 0;
}
+
+ // Rotate the track if necessary
AdjustSector(&t);
+
+ // New track X-position
xpos = t.GetX();
}
// differs from that of TRD sectors
//
- if (ReadClusters(fClusters,cTree)) {
- AliError("Problem with reading the clusters !");
- return 1;
+
+ if (ReadClusters(fClusters, cTree)) {
+ AliError("Problem with reading the clusters !");
+ return 1;
}
- Int_t ncl = fClusters->GetEntriesFast();
+ 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;
- }
- }
-
while (ncl--) {
AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(ncl);
Int_t detector = c->GetDetector();
Int_t localTimeBin = c->GetLocalTimeBin();
Int_t sector = fGeom->GetSector(detector);
- Int_t plane = fGeom->GetPlane(detector);
+ Int_t layer = fGeom->GetLayer(detector);
Int_t trackingSector = sector;
- if (c->GetQ() > 10) {
- Int_t chamber = fGeom->GetChamber(detector);
- fHoles[chamber][trackingSector] = kFALSE;
- }
+ //if (c->GetQ() > 10) {
+ // Int_t stack = fGeom->GetStack(detector);
+ //}
- Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(plane,localTimeBin);
+ Int_t gtb = fTrSec[trackingSector]->CookTimeBinIndex(layer,localTimeBin);
if (gtb < 0) {
continue;
}
- Int_t layer = fTrSec[trackingSector]->GetLayerNumber(gtb);
+ Int_t trLayer = fTrSec[trackingSector]->GetLayerNumber(gtb);
index = ncl;
fHXCl->Fill(c->GetX());
- fTrSec[trackingSector]->GetLayer(layer)->SetX(c->GetX());
- fTrSec[trackingSector]->GetLayer(layer)->InsertCluster(c,index);
+ fTrSec[trackingSector]->GetLayer(trLayer)->SetX(c->GetX());
+ fTrSec[trackingSector]->GetLayer(trLayer)->InsertCluster(c,index);
}
delete fTracks->RemoveAt(i);
}
- Int_t nsec = AliTRDgeometry::kNsect;
+ Int_t nsec = AliTRDgeometry::kNsector;
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*/, AliESDEvent *esd)
+Int_t AliTRDtracker::Clusters2Tracks(AliESDEvent *esd)
{
//
// Creates seeds using clusters between position inner plane and outer plane
const Double_t kRoad2z = 20.0; // Road in z for extrapolated cluster
const Int_t kMaxSeed = 3000;
- Int_t maxSec = AliTRDgeometry::kNsect;
+ Int_t maxSec = AliTRDgeometry::kNsector;
// Linear fitters in planes
TLinearFitter fitterTC(2,"hyp2"); // Fitting with tilting pads - kz fixed - kz= Z/x, + vertex const
}
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) {
+ AliTRDpropagationLayer &propLayer = *(fTrSec[ns]->GetLayer(ilayer));
+ if (propLayer == 0) {
continue;
}
- Int_t det = layer[0]->GetDetector();
- Int_t plane = fGeom->GetPlane(det);
- if (ilayer < layers[plane][0]) {
- layers[plane][0] = ilayer;
+ Int_t det = propLayer[0]->GetDetector();
+ Int_t layer = fGeom->GetLayer(det);
+ if (ilayer < layers[layer][0]) {
+ layers[layer][0] = ilayer;
}
- if (ilayer > layers[plane][1]) {
- layers[plane][1] = ilayer;
+ if (ilayer > layers[layer][1]) {
+ layers[layer][1] = ilayer;
}
}
}
isFake = kTRUE;
}
- if (AliTRDReconstructor::StreamLevel() > 0) {
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0) {
if ((!isFake) || ((icl3%10) == 0)) { // Debugging print
TTreeSRedirector &cstream = *fDebugStreamer;
cstream << "Seeds0"
cseed[sLayer+jLayer].SetPadLength(padlength[sLayer+jLayer]);
cseed[sLayer+jLayer].SetX0(xcl[sLayer+jLayer]);
- for (Int_t iter = 0; iter < 2; iter++) {
+ for (Int_t jter = 0; jter < 2; jter++) {
//
// In iteration 0 we try only one pad-row
//
AliTRDseed tseed = cseed[sLayer+jLayer];
Float_t roadz = padlength[sLayer+jLayer] * 0.5;
- if (iter > 0) {
+ if (jter > 0) {
roadz = padlength[sLayer+jLayer];
}
Double_t dxlayer = layer.GetX() - xcl[sLayer+jLayer];
Double_t zexp = cl[sLayer+jLayer]->GetZ();
- if (iter > 0) {
+ if (jter > 0) {
// Try 2 pad-rows in second iteration
zexp = tseed.GetZref(0) + tseed.GetZref(1) * dxlayer;
if (zexp > cl[sLayer+jLayer]->GetZ()) {
if (index <= 0) {
continue;
}
- AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index);
+ AliTRDcluster *clu = (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.SetClusters(iTime,clu); // Register cluster
+ tseed.SetX(iTime,dxlayer); // Register cluster
+ tseed.SetY(iTime,clu->GetY()); // Register cluster
+ tseed.SetZ(iTime,clu->GetZ()); // Register cluster
}
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()) {
+ if ((jter == 0) && tseed.IsOK()) {
cseed[sLayer+jLayer] = tseed;
quality = tquality;
if (tquality < 5) {
cseed[sLayer+jLayer] = tseed;
}
- } // Loop: iter
+ } // Loop: jter
if (!cseed[sLayer+jLayer].IsOK()) {
isOK = kFALSE;
Float_t zexp = cseed[jLayer].GetZref(0);
Double_t zroad = padlength[jLayer] * 0.5 + 1.0;
- for (Int_t iter = 0; iter < 2; iter++) {
+ for (Int_t jter = 0; jter < 2; jter++) {
AliTRDseed tseed = cseed[jLayer];
Float_t quality = 10000.0;
if (index <= 0) {
continue;
}
- AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index);
+ AliTRDcluster *clu = (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.SetClusters(iTime,clu); // Register cluster
+ tseed.SetX(iTime,dxlayer); // Register cluster
+ tseed.SetY(iTime,clu->GetY()); // Register cluster
+ tseed.SetZ(iTime,clu->GetZ()); // Register cluster
}
tseed.Update();
zroad *= 2.0;
- } // Loop: iter
+ } // Loop: jter
if ( cseed[jLayer].IsOK()) {
cseed[jLayer].CookLabels();
Float_t lastchi2 = 10000.0;
Float_t chi2 = 1000.0;
- for (Int_t iter = 0; iter < 4; iter++) {
+ for (Int_t jter = 0; jter < 4; jter++) {
// Sort tracklets according "quality", try to "improve" 4 worst
Float_t sumquality = 0.0;
}
lastquality = sumquality;
lastchi2 = chi2;
- if (iter > 0) {
+ if (jter > 0) {
for (Int_t jLayer = 0; jLayer < 6; jLayer++) {
cseed[jLayer] = bseed[jLayer];
}
if (index <= 0) {
continue;
}
- AliTRDcluster *cl = (AliTRDcluster *) GetCluster(index);
+ AliTRDcluster *clu = (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.SetClusters(iTime,clu); // Register cluster
+ tseed.SetX(iTime,dxlayer); // Register cluster
+ tseed.SetY(iTime,clu->GetY()); // Register cluster
+ tseed.SetZ(iTime,clu->GetZ()); // Register cluster
}
chi2 = AliTRDseed::FitRiemanTilt(bseed,kTRUE);
- } // Loop: iter
+ } // Loop: jter
nclusters = 0;
nlayers = 0;
if (1 || (!isFake)) {
Float_t zvertex = GetZ();
TTreeSRedirector &cstream = *fDebugStreamer;
- if (AliTRDReconstructor::StreamLevel() > 0) {
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0) {
cstream << "Seeds1"
<< "isFake=" << isFake
<< "Vertex=" << zvertex
signedseed[i] = kFALSE;
}
- for (Int_t iter = 0; iter < 5; iter++) {
+ for (Int_t jter = 0; jter < 5; jter++) {
for (Int_t iseed = 0; iseed < registered; iseed++) {
continue;
}
- if (iter == 0) {
+ if (jter == 0) {
if (nlayers < 6) {
continue;
}
}
}
- if (iter == 1) {
+ if (jter == 1) {
if (nlayers < findable) {
continue;
}
}
}
- if (iter == 2) {
+ if (jter == 2) {
if ((nlayers == findable) ||
(nlayers == 6)) {
continue;
}
}
- if (iter == 3) {
+ if (jter == 3) {
if (TMath::Log(0.000000001+seedquality2[index]) < -5.0) {
continue;
}
}
- if (iter == 4) {
+ if (jter == 4) {
if (TMath::Log(0.000000001+seedquality2[index]) - nused/(nlayers-3.0) < -15.0) {
continue;
}
esdtrack.UpdateTrackParams(track,AliESDtrack::kTRDout);
esdtrack.SetLabel(label);
esd->AddTrack(&esdtrack);
- TTreeSRedirector &cstream = *fDebugStreamer;
- if (AliTRDReconstructor::StreamLevel() > 0) {
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0) {
cstream << "Tracks"
<< "EventNrInFile=" << eventNrInFile
<< "ESD.=" << &esdtrack
}
}
- if (AliTRDReconstructor::StreamLevel() > 0) {
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0) {
cstream << "Seeds2"
- << "Iter=" << iter
+ << "Iter=" << jter
<< "Track.=" << track
<< "Like=" << seedquality[index]
<< "LikeF=" << seedquality2[index]
} // Loop: iseed
- } // Loop: iter
+ } // Loop: jter
} // End of loop over sectors
delete [] pseed;
+ return 0;
}
//_____________________________________________________________________________
Int_t AliTRDtracker::ReadClusters(TObjArray *array, TTree *clusterTree) const
{
//
- // Reads AliTRDclusters (option >= 0) or AliTRDrecPoints (option < 0)
- // from the file. The names of the cluster tree and branches
+ // Reads AliTRDclusters from the file.
+ // The names of the cluster tree and branches
// should match the ones used in AliTRDclusterizer::WriteClusters()
//
// Loop through all entries in the tree
Int_t nEntries = (Int_t) clusterTree->GetEntries();
Int_t nbytes = 0;
- AliTRDcluster *c = 0;
+ AliTRDcluster *c = 0x0;
for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
// Import the tree
// Get the number of points in the detector
Int_t nCluster = clusterArray->GetEntriesFast();
-
// Loop through all TRD digits
for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) {
- c = (AliTRDcluster *) clusterArray->UncheckedAt(iCluster);
- AliTRDcluster *co = c;
- array->AddLast(co);
+ if(!(c = (AliTRDcluster *) clusterArray->UncheckedAt(iCluster))) continue;
+ array->AddLast(c);
+ //printf("Add cluster 0x%x.\n", c);
clusterArray->RemoveAt(iCluster);
}
}
-
delete clusterArray;
return 0;
//
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);
+ Int_t idet = cl->GetDetector();
+ Int_t isector = fGeom->GetSector(idet);
+ Int_t istack = fGeom->GetStack(idet);
+ Int_t ilayer = fGeom->GetLayer(idet);
Double_t local[3];
- local[0] = GetX(isector,iplan,cl->GetLocalTimeBin());
+ local[0] = GetX(isector,ilayer,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]);
- AliGeomManager::ELayerID iLayer = AliGeomManager::kTRD1;
- switch (iplan) {
+ AliGeomManager::ELayerID iGeoLayer = AliGeomManager::kTRD1;
+ switch (ilayer) {
case 0:
- iLayer = AliGeomManager::kTRD1;
+ iGeoLayer = AliGeomManager::kTRD1;
break;
case 1:
- iLayer = AliGeomManager::kTRD2;
+ iGeoLayer = AliGeomManager::kTRD2;
break;
case 2:
- iLayer = AliGeomManager::kTRD3;
+ iGeoLayer = AliGeomManager::kTRD3;
break;
case 3:
- iLayer = AliGeomManager::kTRD4;
+ iGeoLayer = AliGeomManager::kTRD4;
break;
case 4:
- iLayer = AliGeomManager::kTRD5;
+ iGeoLayer = AliGeomManager::kTRD5;
break;
case 5:
- iLayer = AliGeomManager::kTRD6;
+ iGeoLayer = AliGeomManager::kTRD6;
break;
};
- Int_t modId = isector * fGeom->Ncham() + ichamber;
- UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,modId);
+ Int_t modId = isector * fGeom->Nstack() + istack;
+ UShort_t volid = AliGeomManager::LayerToVolUID(iGeoLayer,modId);
p.SetVolumeID(volid);
return kTRUE;
for (Int_t i = from; i < ncl; i++) {
Int_t index = t->GetClusterIndex(i);
AliTRDcluster *c = (AliTRDcluster *) fClusters->UncheckedAt(index);
- Int_t iplane = fGeom->GetPlane(c->GetDetector());
- if (track->GetTracklets(iplane).GetChi2() > kmaxchi2) {
+ Int_t ilayer = fGeom->GetLayer(c->GetDetector());
+ if (track->GetTracklets(ilayer).GetChi2() > kmaxchi2) {
continue;
}
- if (track->GetTracklets(iplane).GetN() < kmincl) {
+ if (track->GetTracklets(ilayer).GetN() < kmincl) {
continue;
}
if (!(c->IsUsed())) {
}
-//_____________________________________________________________________________
-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
- //
-
- for (Int_t i = 0; i < (Int_t) kZones; i++) {
- fZc[i] = 0;
- fZmax[i] = 0;
- }
-
- if (fTimeBinIndex >= 0) {
- fClusters = new AliTRDcluster*[kMaxClusterPerTimeBin];
- fIndex = new UInt_t[kMaxClusterPerTimeBin];
- }
-
- 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)
-{
- //
- // Sets hole in the layer
- //
-
- fHole = kTRUE;
- fHoleZc = Zc;
- fHoleZmax = Zmax;
- fHoleYc = Yc;
- fHoleYmax = Ymax;
- fHoleRho = rho;
- fHoleX0 = radLength;
-
-}
//_____________________________________________________________________________
AliTRDtracker::AliTRDtrackingSector
AliTRDpropagationLayer *ppl = 0;
// Get holes description from geometry
- Bool_t holes[AliTRDgeometry::kNcham];
- for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) {
- holes[icham] = fGeom->IsHole(0,icham,gs);
+ Bool_t holes[AliTRDgeometry::kNstack];
+ for (Int_t istack = 0; istack < AliTRDgeometry::kNstack; istack++) {
+ holes[istack] = fGeom->IsHole(0,istack,gs);
}
for (UInt_t i = 0; i < kMaxTimeBinIndex; i++) {
Double_t dxAmp = (Double_t) fGeom->CamHght(); // Amplification region
//Double_t dxDrift = (Double_t) fGeom->CdrHght(); // Drift region
- const Int_t kNchambers = AliTRDgeometry::Ncham();
+ const Int_t kNstacks = AliTRDgeometry::Nstack();
Int_t tbIndex;
Double_t ymax = 0;
Double_t ymaxsensitive = 0;
- Double_t *zc = new Double_t[kNchambers];
- Double_t *zmax = new Double_t[kNchambers];
- Double_t *zmaxsensitive = new Double_t[kNchambers];
+ Double_t *zc = new Double_t[kNstacks];
+ Double_t *zmax = new Double_t[kNstacks];
+ Double_t *zmaxsensitive = new Double_t[kNstacks];
- for (Int_t plane = 0; plane < AliTRDgeometry::Nplan(); plane++) {
+ for (Int_t layer = 0; layer < AliTRDgeometry::Nlayer(); layer++) {
- ymax = fGeom->GetChamberWidth(plane) / 2.0;
- padPlane = fGeom->GetPadPlane(plane,0);
+ ymax = fGeom->GetChamberWidth(layer) / 2.0;
+ padPlane = fGeom->GetPadPlane(layer,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;
+ for (Int_t st = 0; st < kNstacks; st++) {
+ zmax[st] = fGeom->GetChamberLength(layer,st) / 2.0;
Float_t pad = padPlane->GetRowSize(1);
- Float_t row0 = fGeom->GetRow0(plane,ch,0);
- Int_t nPads = fGeom->GetRowMax(plane,ch,0);
- zmaxsensitive[ch] = Float_t(nPads) * pad / 2.0;
- zc[ch] = -(pad * nPads) / 2.0 + row0;
+ Float_t row0 = fGeom->GetRow0(layer,st,0);
+ Int_t nPads = fGeom->GetRowMax(layer,st,0);
+ zmaxsensitive[st] = Float_t(nPads) * pad / 2.0;
+ zc[st] = -(pad * nPads) / 2.0 + row0;
}
- dx = AliTRDcalibDB::Instance()->GetVdrift(0,0,0)
+ AliTRDcalibDB *fCalibration = AliTRDcalibDB::Instance();
+ dx = fCalibration->GetVdrift(0,0,0)
/ AliTRDCommonParam::Instance()->GetSamplingFrequency();
rho = 0.00295 * 0.85; //????
radLength = 11.0;
- Double_t x0 = (Double_t) AliTRDgeometry::GetTime0(plane);
+ Double_t x0 = (Double_t) AliTRDgeometry::GetTime0(layer);
//Double_t xbottom = x0 - dxDrift;
//Double_t xtop = x0 + dxAmp;
+
+ //temporary !! (A.Bercuci)
+ Int_t T0 = (Int_t)fCalibration->GetT0Average(AliTRDgeometry::GetDetector(layer, 2, gs));
Int_t nTimeBins = AliTRDcalibDB::Instance()->GetNumberOfTimeBins();
for (Int_t iTime = 0; iTime < nTimeBins; iTime++) {
//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(layer,iTime);
+ ppl = new AliTRDpropagationLayer(x,dx,rho,radLength,tbIndex,layer);
ppl->SetYmax(ymax,ymaxsensitive);
ppl->SetZ(zc,zmax,zmaxsensitive);
ppl->SetHoles(holes);
- InsertLayer(ppl);
+ if(iTime == T0) ppl->SetT0();
+
+ InsertLayer(ppl);
}
}
+//_____________________________________________________________________________
+AliTRDtracker::AliTRDtrackingSector
+ ::~AliTRDtrackingSector()
+{
+ //
+ // Destructor
+ //
+
+ for (Int_t i = 0; i < fN; i++) {
+ delete fLayers[i];
+ }
+
+}
+
//_____________________________________________________________________________
Int_t AliTRDtracker::AliTRDtrackingSector
::CookTimeBinIndex(Int_t plane, Int_t localTB) const
{
//
- // depending on the digitization parameters calculates "global"
- // time bin index for timebin <localTB> in plane <plane>
- //
+ // Depending on the digitization parameters calculates global
+ // (i.e. for a whole TRD stack of 6 planes) time bin index for
+ // timebin <localTB> in plane <plane>
//
Int_t tbPerPlane = AliTRDcalibDB::Instance()->GetNumberOfTimeBins();
}
-//_____________________________________________________________________________
-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];
- fZmaxSensitive[icham] = wsensitive[icham];
- }
-
-}
-
-//_____________________________________________________________________________
-void AliTRDtracker::AliTRDpropagationLayer::SetHoles(Bool_t *holes)
-{
- //
- // set centers and the width of sectors
- //
-
- fHole = kFALSE;
-
- for (Int_t icham = 0; icham < AliTRDgeometry::kNcham; icham++) {
- fIsHole[icham] = holes[icham];
- if (holes[icham]) {
- fHole = kTRUE;
- }
- }
-
-}
-
-//_____________________________________________________________________________
-void AliTRDtracker::AliTRDpropagationLayer
- ::InsertCluster(AliTRDcluster *c, UInt_t index)
-{
- //
- // Insert cluster in cluster array.
- // Clusters are sorted according to Y coordinate.
- //
-
- if (fTimeBinIndex < 0) {
- //AliWarning("Attempt to insert cluster into non-sensitive time bin!\n");
- return;
- }
-
- if (fN == (Int_t) kMaxClusterPerTimeBin) {
- //AliWarning("Too many clusters !\n");
- return;
- }
-
- if (fN == 0) {
- fIndex[0] = index;
- fClusters[fN++] = c;
- return;
- }
-
- Int_t i = Find(c->GetY());
- memmove(fClusters+i+1,fClusters+i,(fN-i)*sizeof(AliTRDcluster*));
- memmove(fIndex +i+1,fIndex +i,(fN-i)*sizeof(UInt_t));
- fIndex[i] = index;
- fClusters[i] = c;
- fN++;
-
-}
-
-//_____________________________________________________________________________
-Int_t AliTRDtracker::AliTRDpropagationLayer::Find(Float_t y) const
-{
- //
- // Returns index of the cluster nearest in Y
- //
-
- if (fN <= 0) {
- return 0;
- }
- if (y <= fClusters[0]->GetY()) {
- return 0;
- }
- if (y > fClusters[fN-1]->GetY()) {
- return fN;
- }
-
- Int_t b = 0;
- Int_t e = fN - 1;
- Int_t m = (b + e) / 2;
-
- for ( ; b < e; m = (b + e) / 2) {
- if (y > fClusters[m]->GetY()) {
- b = m + 1;
- }
- else {
- e = m;
- }
- }
-
- return m;
-
-}
-
-//_____________________________________________________________________________
-Int_t AliTRDtracker::AliTRDpropagationLayer
- ::FindNearestCluster(Float_t y, Float_t z, Float_t maxroad
- , Float_t maxroadz) const
-{
- //
- // Returns index of the cluster nearest to the given y,z
- //
-
- Int_t index = -1;
- Int_t maxn = fN;
- Float_t mindist = maxroad;
-
- for (Int_t i = Find(y-maxroad); i < maxn; i++) {
- AliTRDcluster *c = (AliTRDcluster *) (fClusters[i]);
- Float_t ycl = c->GetY();
- if (ycl > (y + maxroad)) {
- break;
- }
- if (TMath::Abs(c->GetZ() - z) > maxroadz) {
- continue;
- }
- if (TMath::Abs(ycl - y) < mindist) {
- mindist = TMath::Abs(ycl - y);
- index = fIndex[i];
- }
- }
-
- return index;
-
-}
-
//_____________________________________________________________________________
Double_t AliTRDtracker::GetTiltFactor(const AliTRDcluster *c)
{
//
Int_t det = c->GetDetector();
- Int_t plane = fGeom->GetPlane(det);
- AliTRDpadPlane *padPlane = fGeom->GetPadPlane(plane,0);
+ Int_t layer = fGeom->GetLayer(det);
+ AliTRDpadPlane *padPlane = fGeom->GetPadPlane(layer,0);
Double_t h01 = TMath::Tan(-TMath::Pi() / 180.0 * padPlane->GetTiltingAngle());
if (fNoTilt) {
}
-
//_____________________________________________________________________________
Int_t AliTRDtracker::FindClusters(Int_t sector, Int_t t0, Int_t t1
, AliTRDtrack *track
- , Int_t *clusters, AliTRDtracklet &tracklet)
+ , Int_t *clusters
+ , AliTRDtracklet &tracklet)
{
//
- //
- // Try to find nearest clusters to the track in timebins from t0 to t1
- //
+ // Try to find the nearest clusters to the track in the time bins
+ // between <t0> and <t1>.
+ // Also the corresponding tracklet is calculated
// 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];
+ const Int_t kN1 = 100;
+ const Int_t kN2 = 10;
+
+ Double_t x[kN1];
+ Double_t yt[kN1];
+ Double_t zt[kN1];
+ Float_t zmean[kN1];
+ Float_t nmean[kN1];
+
+ Double_t dz[kN2][kN1];
+ Double_t dy[kN2][kN1];
+ Int_t indexes[kN2][kN1]; // Indexes of the clusters in the road
+ Int_t best[kN2][kN1]; // Index of best matching cluster
+ AliTRDcluster *cl[kN2][kN1]; // Pointers to the clusters in the road
+
+ Double_t xmean = 0.0; // Reference x
Int_t clfound = 0;
- 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;
+
+ // Initialize the arrays
+ for (Int_t it = 0; it < kN1; it++) {
+
+ x[it] = 0.0;
+ yt[it] = 0.0;
+ zt[it] = 0.0;
clusters[it] = -2;
- zmean[it] = 0.0;
- nmean[it] = 0.0;
- for (Int_t ih = 0; ih < 10;ih++) {
- indexes[ih][it] = -2; // Reset indexes1
+ zmean[it] = 0.0;
+ nmean[it] = 0.0;
+
+ for (Int_t ih = 0; ih < kN2; ih++) {
+ indexes[ih][it] = -2;
cl[ih][it] = 0;
dz[ih][it] = -100.0;
dy[ih][it] = -100.0;
best[ih][it] = 0;
}
+
}
Double_t x0 = track->GetX();
Int_t nall = 0;
Int_t nfound = 0;
Double_t h01 = 0.0;
- Int_t plane = -1;
+ Int_t layer = -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 (road > 6.0) {
road = 6.0;
}
- //road = 20.0;
for (Int_t it = 0; it < t1-t0; it++) {
//
// Find 2 nearest cluster at given time bin
//
- int checkPoint[4] = {0,0,0,0};
- double minY = 123456789;
- double minD[2] = {1,1};
+ Int_t checkPoint[4] = { 0, 0, 0, 0 };
+ Double_t minY = 123456789.0;
+ Double_t minD[2] = { 1.0, 1.0 };
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) {
+ if (layer < 0) {
Int_t det = c->GetDetector();
- plane = fGeom->GetPlane(det);
+ layer = fGeom->GetLayer(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;
+ minY = c->GetY() - y;
+ minD[0] = c->GetY() - y;
+ minD[1] = c->GetZ() - z;
}
checkPoint[0]++;
checkPoint[1]++;
Double_t dist = TMath::Abs(c->GetZ() - z);
- if (dist > (0.5 * padlength + 6.0 * sigmaz)) { // 0.5
+ if (dist > (0.5 * padlength + 6.0 * sigmaz)) {
continue; // 6 sigma boundary cut
}
checkPoint[2]++;
- Double_t cost = 0.0;
// Sigma boundary cost function
+ Double_t cost = 0.0;
if (dist> (0.5 * padlength - sigmaz)){
cost = (dist - 0.5*padlength) / (2.0 * sigmaz);
if (cost > -1) {
cost = 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++;
}
checkPoint[3]++;
- detector = c->GetDetector();
// Store the clusters in the road
+ detector = c->GetDetector();
for (Int_t ih = 2; ih < 9; ih++) {
if (cl[ih][it] == 0) {
cl[ih][it] = c;
}
- for(int iCheckPoint = 0; iCheckPoint<4; iCheckPoint++)
+ for(int iCheckPoint = 0; iCheckPoint<4; iCheckPoint++) {
fHFindCl[iCheckPoint]->Fill(checkPoint[iCheckPoint]);
+ }
if (checkPoint[3]) {
- if (track->GetSignedPt() > 0) fHMinYPos->Fill(minY);
- else fHMinYNeg->Fill(minY);
-
- fHMinD->Fill(minD[0], minD[1]);
- }
+ if (track->GetSignedPt() > 0) {
+ fHMinYPos->Fill(minY);
+ }
+ else {
+ fHMinYNeg->Fill(minY);
+ }
+ fHMinD->Fill(minD[0],minD[1]);
+ }
if (cl[0][it]) {
nfound++;
//
// 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 sumx2 = 0.0;
Double_t mpads = 0.0;
- Int_t ngood[10];
- Int_t nbad[10];
+ Int_t changes[kN2];
+
+ Int_t ngood[kN2];
+ Int_t nbad[kN2];
- Double_t meanz[10];
- Double_t moffset[10]; // Mean offset
- Double_t mean[10]; // Mean value
- Double_t angle[10]; // Angle
+ Double_t meanz[kN2];
+ Double_t moffset[kN2]; // Mean offset
+ Double_t mean[kN2]; // Mean value
+ Double_t angle[kN2]; // 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 smoffset[kN2]; // Sigma of mean offset
+ Double_t smean[kN2]; // Sigma of mean value
+ Double_t sangle[kN2]; // Sigma of angle
+ Double_t smeanangle[kN2]; // Correlation
- Double_t sigmas[10];
- Double_t tchi2s[10]; // Chi2s for tracklet
+ Double_t sigmas[kN2];
+ Double_t tchi2s[kN2]; // Chi2s for tracklet
- for (Int_t it = 0; it < 10; it++) {
+ for (Int_t it = 0; it < kN2; it++) {
ngood[it] = 0;
nbad[it] = 0;
meanz[it] = 0.0;
- moffset[it] = 0.0; // Mean offset
- mean[it] = 0.0; // Mean value
- angle[it] = 0.0; // Angle
+ 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
+ smeanangle[it] = 0.0; // Correlation
sigmas[it] = 1.0e5;
tchi2s[it] = 1.0e5; // Chi2s for tracklet
changes[iter]++;
}
- Double_t dx = x[it]-xmean; // Distance to reference x
+ // Distance to reference x
+ Double_t dx = x[it]-xmean;
sumz += cl[best[iter][it]][it]->GetZ();
sum++;
sumdy += dy[best[iter][it]][it];
}
//
- // calculates line parameters
+ // 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;
+ meanz[iter] = sumz / sum;
moffset[iter] = sumdy / sum;
mpads /= sum; // Mean number of pads
Double_t mindist = 100000.0;
Int_t ihbest = 0;
- for (Int_t ih = 0; ih < 10; ih++) {
+ for (Int_t ih = 0; ih < kN2; ih++) {
if (!cl[ih][it]) {
break;
}
ihbest = ih;
}
}
+
best[iter+1][it] = ihbest;
+
}
//
// Update best hypothesy if better chi2 according tracklet position and angle
//
- Double_t sy2 = smean[iter] + track->GetSigmaY2();
+ sy2 = smean[iter] + track->GetSigmaY2();
Double_t sa2 = sangle[iter] + track->GetSigmaSnp2(); // track->fCee;
Double_t say = track->GetSigmaSnpY(); // track->fCey;
- //Double_t chi20 = mean[bestiter]*mean[bestiter ] / sy2+angle[bestiter]*angle[bestiter]/sa2;
- //Double_t chi21 = mean[iter]*mean[iter] / sy2+angle[iter]*angle[iter]/sa2;
Double_t detchi = sy2*sa2 - say*say;
Double_t invers[3] = {sa2/detchi,sy2/detchi,-say/detchi}; // Inverse value of covariance matrix
Short_t maxpos5 = -1;
Float_t maxcharge5 = 0.0;
- //if (tchi2s[bestiter]>25.) sigma2*=tchi2s[bestiter]/25.;
- //if (tchi2s[bestiter]>25.) sigma2=1000.; // dont'accept
-
Double_t exB = AliTRDcalibDB::Instance()->GetOmegaTau(AliTRDcalibDB::Instance()->GetVdrift(0,0,0)
,-AliTracker::GetBz()*0.1);
Double_t expectederr = sigma2*sigma2 + 0.01*0.01;
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++) {
continue;
}
- cl[best[bestiter][it]][it]->SetSigmaY2(expectederr); // Set cluster error
+ // Set cluster error
+ cl[best[bestiter][it]][it]->SetSigmaY2(expectederr);
if (!cl[best[bestiter][it]][it]->IsUsed()) {
cl[best[bestiter][it]][it]->SetY(cl[best[bestiter][it]][it]->GetY());
- //cl[best[bestiter][it]][it]->Use();
}
// Time bins with maximal charge
clusters[it+t0] = indexes[best[bestiter][it]][it];
- // Still needed ????
- //if (cl[best[bestiter][it]][it]->GetLocalTimeBin()>4 &&
- //cl[best[bestiter][it]][it]->GetLocalTimeBin()<18) clusters[it+t0]
- // = indexes[best[bestiter][it]][it]; //Test
-
}
- //
// Set tracklet parameters
- //
Double_t trackleterr2 = smoffset[bestiter] + 0.01*0.01;
if (mpads > 3.5) {
trackleterr2 += (mpads - 3.5) * 0.04;
trackleterr2 *= 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]
tracklet.SetP1(angle[bestiter]);
tracklet.SetN(nfound);
tracklet.SetNCross(changes[bestiter]);
- tracklet.SetPlane(plane);
+ tracklet.SetPlane(layer);
tracklet.SetSigma2(expectederr);
tracklet.SetChi2(tchi2s[bestiter]);
tracklet.SetMaxPos(maxpos,maxpos4,maxpos5);
- track->SetTracklets(plane,tracklet);
+ track->SetTracklets(layer,tracklet);
track->SetNWrong(track->GetNWrong() + nbad[0]);
//
new(array1[it]) AliTRDcluster(dummy);
}
}
+
TGraph graph0(t1-t0,x,dy0);
TGraph graph1(t1-t0,x,dyb);
TGraph graphy(t1-t0,x,yt);
TGraph graphz(t1-t0,x,zt);
- if (AliTRDReconstructor::StreamLevel() > 0) {
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0) {
cstream << "tracklet"
<< "track.=" << track // Track parameters
<< "tany=" << tany // Tangent of the local track angle
<< "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
+ << "layer=" << layer // Layer number
<< "detector=" << detector // Detector number
<< "road=" << road // The width of the used road
<< "graph0.=" << &graph0 // x - y = dy for closest cluster
AliTRDtrack *AliTRDtracker::RegisterSeed(AliTRDseed *seeds, Double_t *params)
{
//
- // Register a seed
+ // Build a TRD track out of tracklet candidates
+ //
+ // Parameters :
+ // seeds : array of tracklets
+ // params : track parameters (see MakeSeeds() function body for a detailed description)
+ //
+ // Output :
+ // The TRD track.
+ //
+ // Detailed description
+ //
+ // To be discussed with Marian !!
//
+ AliTRDcalibDB *cal = AliTRDcalibDB::Instance();
+ Int_t nTimeBins = cal->GetNumberOfTimeBins();
+
+
Double_t alpha = AliTRDgeometry::GetAlpha();
Double_t shift = AliTRDgeometry::GetAlpha()/2.0;
Double_t c[15];
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 (seeds[ilayer].IsOK()) {
+ for (Int_t itime = nTimeBins-1; itime > 0; itime--) {
+ if (seeds[ilayer].GetIndexes(itime) > 0) {
+ index = seeds[ilayer].GetIndexes(itime);
+ cl = seeds[ilayer].GetClusters(itime);
+ //printf("l[%d] index[%d] tb[%d] cptr[%p]\n", ilayer, index, itime, cl);
+ break;
+ }
}
}
if (index > 0) {
}
return track;
-}
-//////////////////////////////////////////////////////////////////////////////////////////
+}
-void AliTRDtracker::InitLogHists() {
+//_____________________________________________________________________________
+void AliTRDtracker::InitLogHists()
+{
+ //
+ // Create the log histograms
+ //
- 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);
+ 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);
+ 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);
+ 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);
+ 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"};
+ const Char_t *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);
+ for (Int_t i = 0; i < 4; i++) {
+ fHFindCl[i] = new TH1D(nameFindCl[i],"",30,-0.5,29.5);
}
-}
-//////////////////////////////////////////////////////////////////////////////////////////
+}
-void AliTRDtracker::SaveLogHists() {
+//_____________________________________________________________________________
+void AliTRDtracker::SaveLogHists()
+{
+ //
+ // Save the log histograms in AliESDs.root
+ //
- TDirectory *sav = gDirectory;
- TFile *logFile = 0;
+ TDirectory *sav = gDirectory;
+ TFile *logFile = 0;
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;
+ Int_t nn = col->GetEntries();
+ for (Int_t i = 0; i < nn; i++) {
+ logFile = (TFile *) col->At(i);
+ if (strstr(logFile->GetName(),"AliESDs.root")) {
+ break;
+ }
}
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);
+ fHBackfit->Write(fHBackfit->GetName(),TObject::kOverwrite);
+ fHRefit->Write(fHRefit->GetName(),TObject::kOverwrite);
+ fHClSearch->Write(fHClSearch->GetName(),TObject::kOverwrite);
+ fHX->Write(fHX->GetName(),TObject::kOverwrite);
+ fHNCl->Write(fHNCl->GetName(),TObject::kOverwrite);
+ fHNClTrack->Write(fHNClTrack->GetName(),TObject::kOverwrite);
+
+ fHMinYPos->Write(fHMinYPos->GetName(),TObject::kOverwrite);
+ fHMinYNeg->Write(fHMinYNeg->GetName(),TObject::kOverwrite);
+ fHMinD->Write(fHMinD->GetName(),TObject::kOverwrite);
+ fHMinZ->Write(fHMinZ->GetName(),TObject::kOverwrite);
+
+ fHDeltaX->Write(fHDeltaX->GetName(),TObject::kOverwrite);
+ fHXCl->Write(fHXCl->GetName(),TObject::kOverwrite);
- for(int i=0; i<4; i++)
- fHFindCl[i]->Write(fHFindCl[i]->GetName(), TObject::kOverwrite);
+ for (Int_t i = 0; i < 4; i++) {
+ fHFindCl[i]->Write(fHFindCl[i]->GetName(),TObject::kOverwrite);
+ }
logFile->Flush();
sav->cd();
-}
-//////////////////////////////////////////////////////////////////////////////////////////
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff