+
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
/* $Id$ */
+#include "TVectorT.h"
#include "AliLog.h"
#include "AliESDtrack.h"
#include "AliTracker.h"
#include "AliTRDcluster.h"
#include "AliTRDcalibDB.h"
#include "AliTRDReconstructor.h"
+#include "AliTRDPIDResponse.h"
#include "AliTRDrecoParam.h"
+#include "AliTRDdEdxUtils.h"
ClassImp(AliTRDtrackV1)
//_______________________________________________________________
AliTRDtrackV1::AliTRDtrackV1() : AliKalmanTrack()
,fStatus(0)
+ ,fESDid(0)
,fDE(0.)
+ ,fTruncatedMean(0)
,fkReconstructor(NULL)
,fBackupTrack(NULL)
,fTrackLow(NULL)
for(int is =0; is<AliPID::kSPECIES; is++) fPID[is] = pid;
for(int ip=0; ip<kNplane; ip++){
- fTrackletIndex[ip] = 0xffff;
+ fTrackletIndex[ip] = -1;
fTracklet[ip] = NULL;
}
}
//_______________________________________________________________
AliTRDtrackV1::AliTRDtrackV1(const AliTRDtrackV1 &ref) : AliKalmanTrack(ref)
,fStatus(ref.fStatus)
+ ,fESDid(ref.fESDid)
,fDE(ref.fDE)
+ ,fTruncatedMean(ref.fTruncatedMean)
,fkReconstructor(ref.fkReconstructor)
,fBackupTrack(NULL)
,fTrackLow(NULL)
//_______________________________________________________________
AliTRDtrackV1::AliTRDtrackV1(const AliESDtrack &t) : AliKalmanTrack()
,fStatus(0)
+ ,fESDid(0)
,fDE(0.)
+ ,fTruncatedMean(0)
,fkReconstructor(NULL)
,fBackupTrack(NULL)
,fTrackLow(NULL)
// Constructor from AliESDtrack
//
+ SetESDid(t.GetID());
SetLabel(t.GetLabel());
SetChi2(0.0);
- SetMass(t.GetMass()/*0.000510*/);
+ SetMass(t.GetMass(kTRUE));
AliKalmanTrack::SetNumberOfClusters(t.GetTRDncls());
- Int_t ti[kNplane]; t.GetTRDtracklets(&ti[0]);
+ Int_t ti[]={-1, -1, -1, -1, -1, -1}; t.GetTRDtracklets(&ti[0]);
for(int ip=0; ip<kNplane; ip++){
- fTrackletIndex[ip] = ti[ip] < 0 ? 0xffff : ti[ip];
+ fTrackletIndex[ip] = ti[ip];
fTracklet[ip] = NULL;
}
for(int i =0; i<3; i++) fBudget[i] = 0.;
}
//_______________________________________________________________
-AliTRDtrackV1::AliTRDtrackV1(const AliTRDseedV1 * const trklts, const Double_t p[5], const Double_t cov[15]
+AliTRDtrackV1::AliTRDtrackV1(AliTRDseedV1 * const trklts, const Double_t p[5], const Double_t cov[15]
, Double_t x, Double_t alpha) : AliKalmanTrack()
,fStatus(0)
+ ,fESDid(0)
,fDE(0.)
+ ,fTruncatedMean(0)
,fkReconstructor(NULL)
,fBackupTrack(NULL)
,fTrackLow(NULL)
// 2. dQdl calculation
//
- Double_t cnv = GetBz() < 1.e-5 ? 1.e5 : 1.0 / (GetBz() * kB2C);
- // Double_t cnv = 1.0 / (GetBz() * kB2C);
-
+ Double_t b(GetBz());
+ Double_t cnv = (TMath::Abs(b) < 1.e-5) ? 1.e5 : 1./GetBz()/kB2C;
+
Double_t pp[5] = { p[0]
- , p[1]
- , p[2]
- , p[3]
- , p[4]*cnv };
-
+ , p[1]
+ , p[2]
+ , p[3]
+ , p[4]*cnv };
+
Double_t c22 = x*x*cov[14] - 2*x*cov[12] + cov[ 5];
Double_t c32 = x*cov[13] - cov[ 8];
Double_t c20 = x*cov[10] - cov[ 3];
Double_t c21 = x*cov[11] - cov[ 4];
Double_t c42 = x*cov[14] - cov[12];
-
+
Double_t cc[15] = { cov[ 0]
, cov[ 1], cov[ 2]
, c20, c21, c22
, cov[ 6], cov[ 7], c32, cov[ 9]
, cov[10]*cnv, cov[11]*cnv, c42*cnv, cov[13]*cnv, cov[14]*cnv*cnv };
-
+
Double_t mostProbablePt=AliExternalTrackParam::GetMostProbablePt();
Double_t p0=TMath::Sign(1/mostProbablePt,pp[4]);
Double_t w0=cc[14]/(cc[14] + p0*p0), w1=p0*p0/(cc[14] + p0*p0);
+ AliDebug(3, Form("Pt mixing : w0[%4.2f] pt0[%5.3f] w1[%4.2f] pt[%5.3f]", w0, 1./p0, w1, 1./pp[4]));
+
pp[4] = w0*p0 + w1*pp[4];
cc[10]*=w1; cc[11]*=w1; cc[12]*=w1; cc[13]*=w1; cc[14]*=w1;
-
- Set(x,alpha,pp,cc);
+ Set(x,alpha,pp,cc);
+ AliDebug(2, Form("Init @ x[%6.2f] pt[%5.3f]", x, 1./pp[4]));
Int_t ncls = 0;
- for(int iplane=0; iplane<kNplane; iplane++){
- fTrackletIndex[iplane] = 0xffff;
- if(!trklts[iplane].IsOK()) fTracklet[iplane] = NULL;
+ for(int iplane=0; iplane<kNplane; iplane++){
+ fTrackletIndex[iplane] = -1;
+ if(!trklts[iplane].IsOK()) fTracklet[iplane] = NULL;
else{
- fTracklet[iplane] = const_cast<AliTRDseedV1 *>(&trklts[iplane]);
+ fTracklet[iplane] = &trklts[iplane];
ncls += fTracklet[iplane]->GetN();
}
- }
+ }
AliKalmanTrack::SetNumberOfClusters(ncls);
for(int i =0; i<3; i++) fBudget[i] = 0.;
Float_t pid = 1./AliPID::kSPECIES;
for(int is =0; is<AliPID::kSPECIES; is++) fPID[is] = pid;
-
}
//_______________________________________________________________
AliTRDtrackV1::~AliTRDtrackV1()
{
- //AliInfo("");
- //printf("I-AliTRDtrackV1::~AliTRDtrackV1() : Owner[%s]\n", TestBit(kOwner)?"YES":"NO");
+ // Clean up all objects allocated by the track during its lifetime.
+ AliDebug(2, Form("Deleting track[%d]\n fBackupTrack[%p] fTrackLow[%p] fTrackHigh[%p] Owner[%c].", fESDid, (void*)fBackupTrack, (void*)fTrackLow, (void*)fTrackHigh, TestBit(kOwner)?'y':'n'));
if(fBackupTrack) delete fBackupTrack; fBackupTrack = NULL;
for(Int_t ip=0; ip<kNplane; ip++){
if(TestBit(kOwner) && fTracklet[ip]) delete fTracklet[ip];
fTracklet[ip] = NULL;
- fTrackletIndex[ip] = 0xffff;
+ fTrackletIndex[ip] = -1;
}
}
//_______________________________________________________________
-Bool_t AliTRDtrackV1::CookLabel(Float_t wrong)
+AliTRDtrackV1 &AliTRDtrackV1::operator=(const AliTRDtrackV1 &t)
+{
+ //
+ // Assignment operator
+ //
+
+ if (this != &t) {
+ AliKalmanTrack::operator=(t);
+ ((AliTRDtrackV1 &) t).Copy(*this);
+ }
+
+ return *this;
+
+}
+
+//_____________________________________________________________________________
+void AliTRDtrackV1::Copy(TObject &t) const
+{
+ //
+ // Copy function
+ //
+
+ ((AliTRDtrackV1 &) t).fStatus = fStatus;
+ ((AliTRDtrackV1 &) t).fESDid = fESDid;
+ ((AliTRDtrackV1 &) t).fDE = fDE;
+ ((AliTRDtrackV1 &) t).fkReconstructor = fkReconstructor;
+ ((AliTRDtrackV1 &) t).fBackupTrack = 0x0;
+ ((AliTRDtrackV1 &) t).fTrackLow = 0x0;
+ ((AliTRDtrackV1 &) t).fTrackHigh = 0x0;
+
+ for(Int_t ip = 0; ip < kNplane; ip++) {
+ ((AliTRDtrackV1 &) t).fTrackletIndex[ip] = fTrackletIndex[ip];
+ ((AliTRDtrackV1 &) t).fTracklet[ip] = fTracklet[ip];
+ }
+ if (fTrackLow) {
+ ((AliTRDtrackV1 &) t).fTrackLow = new AliExternalTrackParam(*fTrackLow);
+ }
+ if (fTrackHigh){
+ ((AliTRDtrackV1 &) t).fTrackHigh = new AliExternalTrackParam(*fTrackHigh);
+ }
+
+ for (Int_t i = 0; i < 3; i++) {
+ ((AliTRDtrackV1 &) t).fBudget[i] = fBudget[i];
+ }
+ for (Int_t is = 0; is < AliPID::kSPECIES; is++) {
+ ((AliTRDtrackV1 &) t).fPID[is] = fPID[is];
+ }
+
+}
+
+//_______________________________________________________________
+Int_t AliTRDtrackV1::CookLabel(Float_t wrong, Int_t *labs, Float_t *freq)
{
- // set MC label for this track
- if(!GetNumberOfClusters()) return kFALSE;
+// Set MC label for this track
+// On demand i.e. if arrays "labs" and "freq" are allocated by user returns :
+// nlabs = the no of distinct labels
+// labs = array of distinct labels in decreasing order of frequency
+// freq = frequency of each label in decreasing order
- Int_t s[kMAXCLUSTERSPERTRACK][2];
+ Int_t ncl(0);
+ if(!(ncl = GetNumberOfClusters())) return 0;
+
+ Int_t s[2][kMAXCLUSTERSPERTRACK];
for (Int_t i = 0; i < kMAXCLUSTERSPERTRACK; i++) {
- s[i][0] = -1;
- s[i][1] = 0;
+ s[0][i] = -1;
+ s[1][i] = 0;
}
-
- Bool_t labelAdded;
- Int_t label;
- AliTRDcluster *c = NULL;
- for (Int_t ip = 0; ip < kNplane; ip++) {
- if(fTrackletIndex[ip] == 0xffff) continue;
- for (Int_t ic = 0; ic < AliTRDseedV1::kNclusters; ic++) {
+
+ Int_t label(-123456789), nlabels(0);
+ AliTRDcluster *c(NULL);
+ for (Int_t ip(0); ip < AliTRDgeometry::kNlayer; ip++) {
+ if(fTrackletIndex[ip]<0 || !fTracklet[ip]) continue;
+ for (Int_t ic(0); ic < AliTRDseedV1::kNclusters; ic++) {
if(!(c = fTracklet[ip]->GetClusters(ic))) continue;
- for (Int_t k = 0; k < 3; k++) {
- label = c->GetLabel(k);
- labelAdded = kFALSE;
- Int_t j = 0;
- if (label >= 0) {
- while ((!labelAdded) && (j < kMAXCLUSTERSPERTRACK)) {
- if ((s[j][0] == label) ||
- (s[j][1] == 0)) {
- s[j][0] = label;
- s[j][1]++;
- labelAdded = kTRUE;
- }
- j++;
- }
+ for (Int_t k(0); k < 3; k++) {
+ if ((label = c->GetLabel(k)) < 0) continue;
+ Int_t j(0);
+ while(j < kMAXCLUSTERSPERTRACK){
+ if(s[0][j]!=label && s[1][j]!=0){j++; continue;}
+ if(!s[1][j]) nlabels++;
+ s[0][j] = label; s[1][j]++;
+ break;
}
}
}
}
-
- Int_t max = 0;
- label = -123456789;
- for (Int_t i = 0; i < kMAXCLUSTERSPERTRACK; i++) {
- if (s[i][1] <= max) continue;
- max = s[i][1];
- label = s[i][0];
+ //printf(" Found %4d labels\n", nlabels);
+ Float_t prob(1.);
+ if(!nlabels){
+ AliError(Form("No MC labels found for track %d.", fESDid));
+ return 0;
+ } else if(nlabels==1) {
+ label = s[0][0];
+ if(labs && freq){labs[0]=label; freq[0]=1.;}
+ } else {
+ Int_t idx[kMAXCLUSTERSPERTRACK];
+ TMath::Sort(nlabels, s[1], idx);
+ label = s[0][idx[0]]; prob = s[1][idx[0]]/Float_t(ncl);
+ if(labs && freq){
+ for (Int_t i(0); i<nlabels; i++){
+ labs[i] = s[0][idx[i]];
+ freq[i] = s[1][idx[i]]/Float_t(ncl);
+ }
+ }
}
- if ((1. - Float_t(max)/GetNumberOfClusters()) > wrong) label = -label;
-
- SetLabel(label);
-
- return kTRUE;
+ SetLabel((1.-prob > wrong)?-label:label);
+ return nlabels;
}
//_______________________________________________________________
//<img src="TRD/trackPID.gif">
//End_Html
//
-
- /*Reset the a priori probabilities*/
- Double_t pid = 1. / AliPID::kSPECIES;
- for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) fPID[ispec] = pid;
-
- UChar_t fPIDquality = SetNumberOfTrackletsPID(kTRUE);
- // no tracklet found for PID calculations
- if(!fPIDquality) return kFALSE;
-
- // slot for PID calculation @ track level for bremsstrahlung TODO
-
- // normalize probabilities
- Double_t probTotal = 0.0;
- for (Int_t is = 0; is < AliPID::kSPECIES; is++) probTotal += fPID[is];
-
-
- if (probTotal <= 0.0) {
- AliWarning("The total probability over all species <= 0. This may be caused by some error in the reference data.");
+ const AliTRDPIDResponse *pidResponse = AliTRDcalibDB::Instance()->GetPIDResponse(fkReconstructor->GetRecoParam()->GetPIDmethod());
+ if(!pidResponse){
+ AliError("PID Response not available");
return kFALSE;
}
-
- for (Int_t iSpecies = 0; iSpecies < AliPID::kSPECIES; iSpecies++) fPID[iSpecies] /= probTotal;
-
+ Int_t nslices = pidResponse->GetNumberOfSlices();
+ Double_t dEdx[kNplane * (Int_t)AliTRDPIDResponse::kNslicesNN];
+ Float_t trackletP[kNplane];
+ memset(dEdx, 0, sizeof(Double_t) * kNplane * (Int_t)AliTRDPIDResponse::kNslicesNN);
+ memset(trackletP, 0, sizeof(Float_t)*kNplane);
+ for(Int_t iseed = 0; iseed < kNplane; iseed++){
+ if(!fTracklet[iseed]) continue;
+ trackletP[iseed] = fTracklet[iseed]->GetMomentum();
+ fTracklet[iseed]->SetPID();
+ if(pidResponse->GetPIDmethod() == AliTRDPIDResponse::kLQ1D){
+ dEdx[iseed] = fTracklet[iseed]->GetdQdl();
+ } else {
+ fTracklet[iseed]->CookdEdx(nslices);
+ const Float_t *trackletdEdx = fTracklet[iseed]->GetdEdx();
+ for(Int_t islice = 0; islice < nslices; islice++){
+ dEdx[iseed*nslices + islice] = trackletdEdx[islice];
+ }
+ }
+ }
+ pidResponse->GetResponse(nslices, dEdx, trackletP, fPID);
+
+ static Int_t nprint = 0;
+ if(!nprint){
+ AliTRDdEdxUtils::PrintControl();
+ nprint++;
+ }
+
+ //do truncated mean
+ AliTRDdEdxUtils::SetObjPHQ(AliTRDcalibDB::Instance()->GetPHQ());
+ const Double_t mag = AliTRDdEdxUtils::IsExBOn() ? GetBz() : -1;
+ const Double_t charge = AliTRDdEdxUtils::IsExBOn() ? Charge() : -1;
+ fTruncatedMean = CookTruncatedMean(0, mag, charge, kTRUE);
+
return kTRUE;
}
// Retrieve number of tracklets used for PID calculation.
UChar_t nPID = 0;
- Float_t *prob = NULL;
for(int ip=0; ip<kNplane; ip++){
- if(fTrackletIndex[ip] == 0xffff) continue;
+ if(fTrackletIndex[ip]<0 || !fTracklet[ip]) continue;
if(!fTracklet[ip]->IsOK()) continue;
- if(!(prob = fTracklet[ip]->GetProbability(kFALSE))) continue;
-
- Int_t nspec = 0; // quality check of tracklet dEdx
- for(int ispec=0; ispec<AliPID::kSPECIES; ispec++){
- if(prob[ispec] < 0.) continue;
- nspec++;
- }
- if(!nspec) continue;
- fTracklet[ip]->SetPID();
nPID++;
}
return nPID;
}
-//___________________________________________________________
-UChar_t AliTRDtrackV1::SetNumberOfTrackletsPID(Bool_t recalc)
-{
-// Retrieve number of tracklets used for PID calculation. // Recalculated PID at tracklet level by quering the PID DB.
-
- UChar_t fPIDquality = 0;
-
- // steer PID calculation @ tracklet level
- Float_t *prob = NULL;
- for(int ip=0; ip<kNplane; ip++){
- if(fTrackletIndex[ip] == 0xffff) continue;
- if(!fTracklet[ip]->IsOK()) continue;
- if(!(prob = fTracklet[ip]->GetProbability(recalc))) return 0;
-
- Int_t nspec = 0; // quality check of tracklet dEdx
- for(int ispec=0; ispec<AliPID::kSPECIES; ispec++){
- if(prob[ispec] < 0.) continue;
- fPID[ispec] *= prob[ispec];
- nspec++;
- }
- if(!nspec) continue;
-
- fPIDquality++;
- }
- return fPIDquality;
-}
-
//_______________________________________________________________
AliTRDcluster* AliTRDtrackV1::GetCluster(Int_t id)
{
n+=fTracklet[ip]->GetN();
continue;
}
- AliTRDcluster *c = NULL;
for(Int_t ic=AliTRDseedV1::kNclusters; ic--;){
- if(!(c = fTracklet[ip]->GetClusters(ic))) continue;
-
+ if(!(fTracklet[ip]->GetClusters(ic))) continue;
if(n<id){n++; continue;}
return fTracklet[ip]->GetIndexes(ic);
}
//if ( fPIDquality != inTrack->GetPIDquality() ) return kFALSE;
- for(Int_t i = 0; i < AliPID::kSPECIES; i++){
- if ( fPID[i] != inTrack->GetPID(i) ) return kFALSE;
- }
-
- for (Int_t i = 0; i < 3; i++){
- if ( fBudget[i] != inTrack->GetBudget(i) ) return kFALSE;
- }
- if ( fDE != inTrack->GetEdep() ) return kFALSE;
- if ( fFakeRatio != inTrack->GetFakeRatio() ) return kFALSE;
- if ( fChi2 != inTrack->GetChi2() ) return kFALSE;
- if ( fMass != inTrack->GetMass() ) return kFALSE;
- if ( fLab != inTrack->GetLabel() ) return kFALSE;
- if ( fN != inTrack->GetNumberOfClusters() ) return kFALSE;
- if ( AliKalmanTrack::GetIntegratedLength() != inTrack->GetIntegratedLength() ) return kFALSE;
-
- if ( GetX() != inTrack->GetX() ) return kFALSE;
- if ( GetAlpha() != inTrack->GetAlpha() ) return kFALSE;
- const Double_t *inP = inTrack->GetParameter();
- const Double_t *curP = GetParameter();
- for (Int_t i = 0; i < 5; i++){
- if ( curP[i] != inP[i]) return kFALSE;
- }
- const Double_t *inC = inTrack->GetCovariance();
- const Double_t *curC = GetCovariance();
- for (Int_t i = 0; i < 15; i++){
- if ( curC[i] != inC[i]) return kFALSE;
- }
+ if(memcmp(fPID, inTrack->fPID, AliPID::kSPECIES*sizeof(Double32_t))) return kFALSE;
+ if(memcmp(fBudget, inTrack->fBudget, 3*sizeof(Double32_t))) return kFALSE;
+ if(memcmp(&fDE, &inTrack->fDE, sizeof(Double32_t))) return kFALSE;
+ if(memcmp(&fFakeRatio, &inTrack->fFakeRatio, sizeof(Double32_t))) return kFALSE;
+ if(memcmp(&fChi2, &inTrack->fChi2, sizeof(Double32_t))) return kFALSE;
+ if(memcmp(&fMass, &inTrack->fMass, sizeof(Double32_t))) return kFALSE;
+ if( fLab != inTrack->fLab ) return kFALSE;
+ if( fN != inTrack->fN ) return kFALSE;
+ Double32_t l(0.), in(0.);
+ l = GetIntegratedLength(); in = inTrack->GetIntegratedLength();
+ if(memcmp(&l, &in, sizeof(Double32_t))) return kFALSE;
+ l=GetX(); in=inTrack->GetX();
+ if(memcmp(&l, &in, sizeof(Double32_t))) return kFALSE;
+ l = GetAlpha(); in = inTrack->GetAlpha();
+ if(memcmp(&l, &in, sizeof(Double32_t))) return kFALSE;
+ if(memcmp(GetParameter(), inTrack->GetParameter(), 5*sizeof(Double32_t))) return kFALSE;
+ if(memcmp(GetCovariance(), inTrack->GetCovariance(), 15*sizeof(Double32_t))) return kFALSE;
for (Int_t iTracklet = 0; iTracklet < kNplane; iTracklet++){
AliTRDseedV1 *curTracklet = fTracklet[iTracklet];
//_____________________________________________________________________________
-void AliTRDtrackV1::MakeBackupTrack()
+Int_t AliTRDtrackV1::MakeBackupTrack()
{
- //
- // Creates a backup track
- //
+//
+// Creates a backup track
+// TO DO update quality check of the track.
+//
+
+ Float_t occupancy(0.); Int_t n(0), ncls(0);
+ for(Int_t il(AliTRDgeometry::kNlayer); il--;){
+ if(!fTracklet[il]) continue;
+ n++;
+ occupancy+=fTracklet[il]->GetTBoccupancy()/AliTRDseedV1::kNtb;
+ ncls += fTracklet[il]->GetN();
+ }
+ if(!n) return -1;
+ occupancy/=n;
+
+ //Float_t ratio1 = Float_t(t.GetNumberOfClusters()+1) / Float_t(t.GetNExpected()+1);
+
+ Int_t failedCutId(0);
+ if(GetChi2()/n > 5.0) failedCutId=1;
+ if(occupancy < 0.7) failedCutId=2;
+ //if(ratio1 > 0.6) &&
+ //if(ratio0+ratio1 > 1.5) &&
+ if(GetNCross() != 0) failedCutId=3;
+ if(TMath::Abs(GetSnp()) > 0.85) failedCutId=4;
+ if(ncls < 20) failedCutId=5;
+
+ if(failedCutId){
+ AliDebug(2, Form("\n"
+ "chi2/tracklet < 5.0 [%c] %5.2f\n"
+ "occupancy > 0.7 [%c] %4.2f\n"
+ "NCross == 0 [%c] %d\n"
+ "Abs(snp) < 0.85 [%c] %4.2f\n"
+ "NClusters > 20 [%c] %d"
+ ,(GetChi2()/n<5.0)?'y':'n', GetChi2()/n
+ ,(occupancy>0.7)?'y':'n', occupancy
+ ,(GetNCross()==0)?'y':'n', GetNCross()
+ ,(TMath::Abs(GetSnp())<0.85)?'y':'n', TMath::Abs(GetSnp())
+ ,(ncls>20)?'y':'n', ncls
+ ));
+ return failedCutId;
+ }
if(fBackupTrack) {
fBackupTrack->~AliTRDtrackV1();
new(fBackupTrack) AliTRDtrackV1((AliTRDtrackV1&)(*this));
- return;
+ return 0;
}
fBackupTrack = new AliTRDtrackV1((AliTRDtrackV1&)(*this));
+ return 0;
}
//_____________________________________________________________________________
-Int_t AliTRDtrackV1::GetProlongation(Double_t xk, Double_t &y, Double_t &z)
+Int_t AliTRDtrackV1::GetProlongation(Double_t xk, Double_t &y, Double_t &z) const
{
//
// Find a prolongation at given x
// "xrho" - thickness*density [g/cm^2]
//
- if (xk == GetX()) {
- return kTRUE;
- }
-
- Double_t oldX = GetX();
- Double_t oldY = GetY();
- Double_t oldZ = GetZ();
+ if (TMath::Abs(xk - GetX())<AliTRDReconstructor::GetEpsilon()*0.1) return kTRUE; // 10% of the tracker precision
- Double_t bz = GetBz();
-
- if (!AliExternalTrackParam::PropagateTo(xk,bz)) {
- return kFALSE;
- }
-
- Double_t x = GetX();
- Double_t y = GetY();
- Double_t z = GetZ();
-
- if (oldX < xk) {
+ Double_t xyz0[3] = {GetX(), GetY(), GetZ()}, // track position BEFORE propagation
+ b[3]; // magnetic field
+ GetBxByBz(b);
+ if(!AliExternalTrackParam::PropagateToBxByBz(xk,b)) return kFALSE;
+
+ // local track position AFTER propagation
+ Double_t xyz1[3] = {GetX(), GetY(), GetZ()};
+// printf("x0[%6.2f] -> x1[%6.2f] dx[%6.2f] rho[%f]\n", xyz0[0], xyz1[0], xyz0[0]-xk, xrho/TMath::Abs(xyz0[0]-xk));
+ if(xyz0[0] < xk) {
xrho = -xrho;
if (IsStartedTimeIntegral()) {
- Double_t l2 = TMath::Sqrt((x-oldX)*(x-oldX)
- + (y-oldY)*(y-oldY)
- + (z-oldZ)*(z-oldZ));
- Double_t crv = AliExternalTrackParam::GetC(bz);
+ Double_t l2 = TMath::Sqrt((xyz1[0]-xyz0[0])*(xyz1[0]-xyz0[0])
+ + (xyz1[1]-xyz0[1])*(xyz1[1]-xyz0[1])
+ + (xyz1[2]-xyz0[2])*(xyz1[2]-xyz0[2]));
+ Double_t crv = AliExternalTrackParam::GetC(b[2]);
if (TMath::Abs(l2*crv) > 0.0001) {
// Make correction for curvature if neccesary
- l2 = 0.5 * TMath::Sqrt((x-oldX)*(x-oldX)
- + (y-oldY)*(y-oldY));
+ l2 = 0.5 * TMath::Sqrt((xyz1[0]-xyz0[0])*(xyz1[0]-xyz0[0])
+ + (xyz1[1]-xyz0[1])*(xyz1[1]-xyz0[1]));
l2 = 2.0 * TMath::ASin(l2 * crv) / crv;
- l2 = TMath::Sqrt(l2*l2 + (z-oldZ)*(z-oldZ));
+ l2 = TMath::Sqrt(l2*l2 + (xyz1[2]-xyz0[2])*(xyz1[2]-xyz0[2]));
}
AddTimeStep(l2);
}
}
-
- if (!AliExternalTrackParam::CorrectForMeanMaterial(xx0, xrho, GetMass())) return kFALSE;
+ if (!AliExternalTrackParam::CorrectForMeanMaterial(xx0, xrho, fMass)) return kFALSE;
{
// Energy losses
Double_t p2 = (1.0 + GetTgl()*GetTgl()) / (GetSigned1Pt()*GetSigned1Pt());
- Double_t beta2 = p2 / (p2 + GetMass()*GetMass());
+ Double_t beta2 = p2 / (p2 + fMass*fMass);
if ((beta2 < 1.0e-10) ||
((5940.0 * beta2/(1.0 - beta2 + 1.0e-10) - beta2) < 0.0)) {
return kFALSE;
/*
// Suspicious ! I.B.
Double_t sigmade = 0.07 * TMath::Sqrt(TMath::Abs(dE)); // Energy loss fluctuation
- Double_t sigmac2 = sigmade*sigmade*fC*fC*(p2+GetMass()*GetMass())/(p2*p2);
+ Double_t sigmac2 = sigmade*sigmade*fC*fC*(p2+fMass*fMass)/(p2*p2);
fCcc += sigmac2;
fCee += fX*fX * sigmac2;
*/
AliInfo(Form("x[%7.2f] t[%7.4f] alpha[%f] mass[%f]", GetX(), GetIntegratedLength(), GetAlpha(), fMass));
AliInfo(Form("Ntr[%1d] NtrPID[%1d] Ncl[%3d] lab[%3d]", GetNumberOfTracklets(), GetNumberOfTrackletsPID(), fN, fLab));
- if(strcmp(o, "a")!=0) return;
printf("|X| = (");
const Double_t *curP = GetParameter();
for (Int_t i = 0; i < 5; i++) printf("%7.2f ", curP[i]);
k=-1; j--;
}
}
+ if(strcmp(o, "a")!=0) return;
for(Int_t ip=0; ip<kNplane; ip++){
if(!fTracklet[ip]) continue;
Int_t ncls = 0;
for(int ip=0; ip<kNplane; ip++){
- if(fTracklet[ip] && fTrackletIndex[ip] != 0xffff) ncls += fTracklet[ip]->GetN();
+ if(fTracklet[ip] && fTrackletIndex[ip] >= 0) ncls += fTracklet[ip]->GetN();
}
AliKalmanTrack::SetNumberOfClusters(ncls);
}
if(TestBit(kOwner)) return;
for (Int_t ip = 0; ip < kNplane; ip++) {
- if(fTrackletIndex[ip] == 0xffff) continue;
+ if(fTrackletIndex[ip]<0 || !fTracklet[ip]) continue;
fTracklet[ip] = new AliTRDseedV1(*fTracklet[ip]);
fTracklet[ip]->SetOwner();
}
}
//_______________________________________________________________
-void AliTRDtrackV1::SetTrackLow()
+void AliTRDtrackV1::SetTrackIn()
{
+// Save location of birth for the TRD track
+// If the pointer is not valid allocate memory
+//
const AliExternalTrackParam *op = dynamic_cast<const AliExternalTrackParam*>(this);
- fTrackLow = fTrackLow ? new(fTrackLow) AliExternalTrackParam(*op) : new AliExternalTrackParam(*op);
+
+ //printf("SetTrackIn() : fTrackLow[%p]\n", (void*)fTrackLow);
+ if(fTrackLow){
+ fTrackLow->~AliExternalTrackParam();
+ new(fTrackLow) AliExternalTrackParam(*op);
+ } else fTrackLow = new AliExternalTrackParam(*op);
}
//_______________________________________________________________
-void AliTRDtrackV1::SetTrackHigh(const AliExternalTrackParam *op)
+void AliTRDtrackV1::SetTrackOut(const AliExternalTrackParam *op)
{
+// Save location of death for the TRD track
+// If the pointer is not valid allocate memory
+//
if(!op) op = dynamic_cast<const AliExternalTrackParam*>(this);
- fTrackHigh = fTrackHigh ? new(fTrackHigh) AliExternalTrackParam(*op) : new AliExternalTrackParam(*op);
+ if(fTrackHigh){
+ fTrackHigh->~AliExternalTrackParam();
+ new(fTrackHigh) AliExternalTrackParam(*op);
+ } else fTrackHigh = new AliExternalTrackParam(*op);
}
//_______________________________________________________________
void AliTRDtrackV1::UnsetTracklet(Int_t plane)
{
- if(plane<0 && plane >= kNplane) return;
- fTrackletIndex[plane] = 0xffff;
+ if(plane<0) return;
+ fTrackletIndex[plane] = -1;
fTracklet[plane] = NULL;
}
//_______________________________________________________________
-Bool_t AliTRDtrackV1::Update(Double_t *p, Double_t *cov, Double_t chi2)
+void AliTRDtrackV1::UpdateChi2(Float_t chi2)
{
- //
- // Update track
- //
- if(!AliExternalTrackParam::Update(p, cov)) return kFALSE;
-
- // Register info to track
- SetNumberOfClusters();
+// Update chi2/track with one tracklet contribution
SetChi2(GetChi2() + chi2);
- return kTRUE;
}
//_______________________________________________________________
// Update the TRD PID information in the ESD track
//
- Int_t nslices = fkReconstructor->IsEightSlices() ? (Int_t)AliTRDpidUtil::kNNslices : (Int_t)AliTRDpidUtil::kLQslices;
+// Int_t nslices = AliTRDcalibDB::Instance()->GetPIDResponse(fkReconstructor->GetRecoParam()->GetPIDmethod())->GetNumberOfSlices();
// number of tracklets used for PID calculation
UChar_t nPID = GetNumberOfTrackletsPID();
// number of tracklets attached to the track
// pack the two numbers together and store them in the ESD
track->SetTRDntracklets(nPID | (nTrk<<3));
// allocate space to store raw PID signals dEdx & momentum
- track->SetNumberOfTRDslices((nslices+2)*AliTRDgeometry::kNlayer);
+ track->SetNumberOfTRDslices((AliTRDPIDResponse::kNslicesNN+3)*AliTRDgeometry::kNlayer);
// store raw signals
Float_t p, sp; Double_t spd;
for (Int_t ip = 0; ip < kNplane; ip++) {
- if(fTrackletIndex[ip] == 0xffff) continue;
+ if(fTrackletIndex[ip]<0 || !fTracklet[ip]) continue;
if(!fTracklet[ip]->HasPID()) continue;
+ fTracklet[ip]->CookdEdx(AliTRDPIDResponse::kNslicesNN);
const Float_t *dedx = fTracklet[ip]->GetdEdx();
- for (Int_t js = 0; js < nslices; js++, dedx++) track->SetTRDslice(*dedx, ip, js);
- p = fTracklet[ip]->GetMomentum(&sp); spd = sp;
- track->SetTRDmomentum(p, ip, &spd);
+ for (Int_t js = 0; js < AliTRDPIDResponse::kNslicesNN; js++, dedx++){
+ track->SetTRDslice(*dedx, ip, js+1);
+ }
+ p = fTracklet[ip]->GetMomentum(&sp);
+ spd = sp; track->SetTRDmomentum(p, ip, &spd);
+ // store global quality per tracklet instead of momentum error
+ // 26.09.11 A.Bercuci
+ // first implementation store no. of time bins filled in tracklet (5bits see "y" bits) and
+ // no. of double clusters in case of pad row cross (4bits see "x" bits)
+ // bit map for tracklet quality xxxxyyyyy
+ // 27.10.11 A.Bercuci
+ // add chamber status bit "z" bit
+ // bit map for tracklet quality zxxxxyyyyy
+ // 12.11.11 A.Bercuci
+ // fit tracklet quality into the field fTRDTimeBin [Char_t]
+ // bit map for tracklet quality zxxyyyyy
+ // The information should be retrieved by the following functions of AliESDtrack for each TRD layer
+ // GetTRDtrkltOccupancy(layer) -> no of TB filled in tracklet
+ // GetTRDtrkltClCross(layer) -> no of TB filled in crossing pad rows
+ // IsTRDtrkltChmbGood(layer) -> status of the chamber from which the tracklet is found
+ Int_t nCross(fTracklet[ip]->IsRowCross()?fTracklet[ip]->GetTBcross():0); if(nCross>3) nCross = 3;
+ Char_t trackletQ = Char_t(fTracklet[ip]->GetTBoccupancy() | (nCross<<5) | (fTracklet[ip]->IsChmbGood()<<7));
+ track->SetTRDTimBin(trackletQ, ip);
+ track->SetTRDslice(fTracklet[ip]->GetdQdl(), ip, 0); // Set Summed dEdx into the first slice
}
// store PID probabilities
track->SetTRDpid(fPID);
+
+ //store truncated mean
+ track->SetTRDsignal(fTruncatedMean);
+}
+
+//_______________________________________________________________
+Double_t AliTRDtrackV1::CookTruncatedMean(const Bool_t kinvq, const Double_t mag, const Int_t charge, const Int_t kcalib, TVectorD *Qs, TVectorD *Xs, Int_t timeBin0, Int_t timeBin1, Int_t tstep) const
+{
+ //
+ //Origin: Xianguo Lu <xianguo.lu@cern.ch>, Marian Ivanov <marian.ivanov@cern.ch>
+ //
+
+ TVectorD arrayQ(200), arrayX(200);
+ Int_t ncls = AliTRDdEdxUtils::GetArrayClusterQ(kinvq, &arrayQ, &arrayX, this, timeBin0, timeBin1, tstep);
+
+ const TObjArray *cobj = kcalib ? AliTRDdEdxUtils::GetObjPHQ(kinvq, mag, charge) : NULL;
+
+ const Double_t tmean = AliTRDdEdxUtils::ToyCook(kinvq, ncls, &arrayQ, &arrayX, cobj);
+
+ const Int_t nch = AliTRDdEdxUtils::UpdateArrayX(ncls, &arrayX);
+
+ if(Qs && Xs){
+ (*Qs)=arrayQ;
+ (*Xs)=arrayX;
+ }
+
+ return AliTRDdEdxUtils::GetSignal(nch, ncls, tmean);
}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff