// This is the class to deal with during the phisics analysis of data
// Origin: Iouri Belikov, CERN
// e-mail: Jouri.Belikov@cern.ch
+//
+//
+//
+// What do you need to know before starting analysis
+// (by Marian Ivanov: marian.ivanov@cern.ch)
+//
+//
+// AliESDtrack:
+// 1. What is the AliESDtrack
+// 2. What informations do we store
+// 3. How to use the information for analysis
+//
+//
+// 1.AliESDtrack is the container of the information about the track/particle
+// reconstructed during Barrel Tracking.
+// The track information is propagated from one tracking detector to
+// other using the functionality of AliESDtrack - Current parameters.
+//
+// No global fit model is used.
+// Barrel tracking use Kalman filtering technique, it gives optimal local
+// track parameters at given point under certian assumptions.
+//
+// Kalman filter take into account additional effect which are
+// difficult to handle using global fit.
+// Effects:
+// a.) Multiple scattering
+// b.) Energy loss
+// c.) Non homogenous magnetic field
+//
+// In general case, following barrel detectors are contributing to
+// the Kalman track information:
+// a. TPC
+// b. ITS
+// c. TRD
+//
+// In general 3 reconstruction itteration are performed:
+// 1. Find tracks - sequence TPC->ITS
+// 2. PropagateBack - sequence ITS->TPC->TRD -> Outer PID detectors
+// 3. Refit invward - sequence TRD->TPC->ITS
+// The current tracks are updated after each detector (see bellow).
+// In specical cases a track sanpshots are stored.
+//
+//
+// For some type of analysis (+visualization) track local parameters at
+// different position are neccesary. A snapshots during the track
+// propagation are created.
+// (See AliExternalTrackParam class for desctiption of variables and
+// functionality)
+// Snapshots:
+// a. Current parameters - class itself (AliExternalTrackParam)
+// Contributors: general case TRD->TPC->ITS
+// Preferable usage: Decission - primary or secondary track
+// NOTICE - By default the track parameters are stored at the DCA point
+// to the primary vertex. optimal for primary tracks,
+// far from optimal for secondary tracks.
+// b. Constrained parameters - Kalman information updated with
+// the Primary vertex information
+// Contributors: general case TRD->TPC->ITS
+// Preferable usage: Use only for tracks selected as primary
+// NOTICE - not real constrain - taken as additional measurement
+// with corresponding error
+// Function:
+// const AliExternalTrackParam *GetConstrainedParam() const {return fCp;}
+// c. Inner parameters - Track parameters at inner wall of the TPC
+// Contributors: general case TRD->TPC
+// function:
+// const AliExternalTrackParam *GetInnerParam() const { return fIp;}
+//
+// d. TPCinnerparam - contributors - TPC only
+// Contributors: TPC
+// Preferable usage: Requested for HBT study
+// (smaller correlations as using also ITS information)
+// NOTICE - the track parameters are propagated to the DCA to
+// to primary vertex
+// Optimal for primary, far from optimal for secondary tracks
+// Function:
+// const AliExternalTrackParam *GetTPCInnerParam() const {return fTPCInner;}
+//
+// e. Outer parameters -
+// Contributors- general case - ITS-> TPC -> TRD
+// The last point - Outer parameters radius is determined
+// e.a) Local inclination angle bigger than threshold -
+// Low momenta tracks
+// e.a) Catastrofic energy losss in material
+// e.b) Not further improvement (no space points)
+// Usage:
+// a.) Tracking: Starting parameter for Refit inward
+// b.) Visualization
+// c.) QA
+// NOTICE: Should be not used for the physic analysis
+// Function:
+// const AliExternalTrackParam *GetOuterParam() const { return fOp;}
+//
//-----------------------------------------------------------------
-#include "TMath.h"
+#include <TMath.h>
+#include <TParticle.h>
+#include <TDatabasePDG.h>
+#include "AliESDVertex.h"
#include "AliESDtrack.h"
+#include "AliESDEvent.h"
#include "AliKalmanTrack.h"
+#include "AliVTrack.h"
#include "AliLog.h"
+#include "AliTrackPointArray.h"
+#include "TPolyMarker3D.h"
ClassImp(AliESDtrack)
+void SetPIDValues(Double_t * dest, const Double_t * src, Int_t n) {
+ // This function copies "n" PID weights from "scr" to "dest"
+ // and normalizes their sum to 1 thus producing conditional probabilities.
+ // The negative weights are set to 0.
+ // In case all the weights are non-positive they are replaced by
+ // uniform probabilities
+
+ if (n<=0) return;
+
+ Float_t uniform = 1./(Float_t)n;
+
+ Float_t sum = 0;
+ for (Int_t i=0; i<n; i++)
+ if (src[i]>=0) {
+ sum+=src[i];
+ dest[i] = src[i];
+ }
+ else {
+ dest[i] = 0;
+ }
+
+ if(sum>0)
+ for (Int_t i=0; i<n; i++) dest[i] /= sum;
+ else
+ for (Int_t i=0; i<n; i++) dest[i] = uniform;
+}
+
//_______________________________________________________________________
AliESDtrack::AliESDtrack() :
-fFlags(0),
-fLabel(0),
-fID(0),
-fTrackLength(0),
-fD(0),
-fZ(0),
-fStopVertex(0),
-fRalpha(0),
-fRx(0),
-fCalpha(0),
-fCx(0),
-fCchi2(1e10),
-fIalpha(0),
-fIx(0),
-fTalpha(0),
-fTx(0),
-fITSchi2(0),
-fITSncls(0),
-fITSsignal(0),
-fTPCchi2(0),
-fTPCncls(0),
-fTPCClusterMap(159),//number of padrows
-fTPCsignal(0),
-fTRDchi2(0),
-fTRDncls(0),
-fTRDncls0(0),
-fTRDsignal(0),
-fTRDQuality(0),
-fTOFchi2(0),
-fTOFindex(0),
-fTOFsignal(-1),
-fPHOSsignal(-1),
-fEMCALsignal(-1),
-fRICHchi2(1e10),
-fRICHncls(0),
-fRICHindex(0),
-fRICHsignal(-1),
-fRICHtheta(0),
-fRICHphi(0),
-fRICHdx(0),
-fRICHdy(0)
+ AliExternalTrackParam(),
+ fCp(0),
+ fIp(0),
+ fTPCInner(0),
+ fOp(0),
+ fHMPIDp(0),
+ fFriendTrack(new AliESDfriendTrack()),
+ fTPCClusterMap(159),//number of padrows
+ fTPCSharedMap(159),//number of padrows
+ fFlags(0),
+ fID(0),
+ fLabel(0),
+ fITSLabel(0),
+ fTPCLabel(0),
+ fTRDLabel(0),
+ fTOFCalChannel(0),
+ fTOFindex(-1),
+ fHMPIDqn(0),
+ fHMPIDcluIdx(-1),
+ fEMCALindex(kEMCALNoMatch),
+ fHMPIDtrkTheta(0),
+ fHMPIDtrkPhi(0),
+ fHMPIDsignal(0),
+ fTrackLength(0),
+ fdTPC(0),fzTPC(0),
+ fCddTPC(0),fCdzTPC(0),fCzzTPC(0),
+ fCchi2TPC(0),
+ fD(0),fZ(0),
+ fCdd(0),fCdz(0),fCzz(0),
+ fCchi2(0),
+ fITSchi2(0),
+ fTPCchi2(0),
+ fTRDchi2(0),
+ fTOFchi2(0),
+ fHMPIDchi2(0),
+ fGlobalChi2(0),
+ fITSsignal(0),
+ fTPCsignal(0),
+ fTPCsignalS(0),
+ fTRDsignal(0),
+ fTRDQuality(0),
+ fTRDBudget(0),
+ fTOFsignal(0),
+ fTOFsignalToT(0),
+ fTOFsignalRaw(0),
+ fTOFsignalDz(0),
+ fTOFsignalDx(0),
+ fHMPIDtrkX(0),
+ fHMPIDtrkY(0),
+ fHMPIDmipX(0),
+ fHMPIDmipY(0),
+ fTPCncls(0),
+ fTPCnclsF(0),
+ fTPCsignalN(0),
+ fITSncls(0),
+ fITSClusterMap(0),
+ fTRDncls(0),
+ fTRDncls0(0),
+ fTRDntracklets(0),
+ fTRDnSlices(0),
+ fTRDslices(0x0),
+ fVertexID(-2),// -2 means an orphan track
+ fESDEvent(0)
{
//
// The default ESD constructor
//
- for (Int_t i=0; i<AliPID::kSPECIES; i++) {
+ Int_t i;
+ for (i=0; i<AliPID::kSPECIES; i++) {
fTrackTime[i]=0.;
- fR[i]=1.;
- fITSr[i]=1.;
- fTPCr[i]=1.;
- fTRDr[i]=1.;
- fTOFr[i]=1.;
- fRICHr[i]=1.;
+ fR[i]=0.;
+ fITSr[i]=0.;
+ fTPCr[i]=0.;
+ fTRDr[i]=0.;
+ fTOFr[i]=0.;
+ fHMPIDr[i]=0.;
}
- for (Int_t i=0; i<AliPID::kSPECIESN; i++) {
- fPHOSr[i] = 1.;
- fEMCALr[i] = 1.;
- }
-
-
- fPHOSpos[0]=fPHOSpos[1]=fPHOSpos[2]=0.;
- fEMCALpos[0]=fEMCALpos[1]=fEMCALpos[2]=0.;
- Int_t i;
- for (i=0; i<5; i++) {
- fRp[i]=fCp[i]=fIp[i]=fTp[i]=0.;
- }
- for (i=0; i<15; i++) {
- fRc[i]=fCc[i]=fIc[i]=fTc[i]=0.;
+ for (i=0; i<3; i++) { fKinkIndexes[i]=0;}
+ for (i=0; i<3; i++) { fV0Indexes[i]=0;}
+ for (i=0;i<kTRDnPlanes;i++) {
+ fTRDTimBin[i]=0;
}
- for (i=0; i<6; i++) { fITSindex[i]=0; }
- for (i=0; i<180; i++){ fTPCindex[i]=0; }
- for (i=0; i<3;i++) { fKinkIndexes[i]=0;}
- for (i=0; i<3;i++) { fV0Indexes[i]=-1;}
- for (i=0; i<130; i++) { fTRDindex[i]=0; }
- for (i=0;i<kNPlane;i++) {fTRDsignals[i]=0.; fTRDTimBin[i]=-1;}
- for (Int_t i=0;i<4;i++) {fTPCPoints[i]=-1;}
- for (Int_t i=0;i<3;i++) {fTOFLabel[i]=-1;}
- for (Int_t i=0;i<10;i++) {fTOFInfo[i]=-1;}
- fTPCLabel = 0;
- fTRDLabel = 0;
- fTRDQuality =0;
- fITSLabel = 0;
- fITStrack = 0;
- fTRDtrack = 0;
+ for (i=0;i<4;i++) {fITSdEdxSamples[i]=0.;}
+ for (i=0;i<4;i++) {fTPCPoints[i]=0;}
+ for (i=0;i<3;i++) {fTOFLabel[i]=0;}
+ for (i=0;i<10;i++) {fTOFInfo[i]=0;}
+ for (i=0;i<12;i++) {fITSModule[i]=-1;}
}
//_______________________________________________________________________
-
-AliESDtrack::AliESDtrack(const AliESDtrack& track):TObject(track){
+AliESDtrack::AliESDtrack(const AliESDtrack& track):
+ AliExternalTrackParam(track),
+ fCp(0),
+ fIp(0),
+ fTPCInner(0),
+ fOp(0),
+ fHMPIDp(0),
+ fFriendTrack(0),
+ fTPCClusterMap(track.fTPCClusterMap),
+ fTPCSharedMap(track.fTPCSharedMap),
+ fFlags(track.fFlags),
+ fID(track.fID),
+ fLabel(track.fLabel),
+ fITSLabel(track.fITSLabel),
+ fTPCLabel(track.fTPCLabel),
+ fTRDLabel(track.fTRDLabel),
+ fTOFCalChannel(track.fTOFCalChannel),
+ fTOFindex(track.fTOFindex),
+ fHMPIDqn(track.fHMPIDqn),
+ fHMPIDcluIdx(track.fHMPIDcluIdx),
+ fEMCALindex(track.fEMCALindex),
+ fHMPIDtrkTheta(track.fHMPIDtrkTheta),
+ fHMPIDtrkPhi(track.fHMPIDtrkPhi),
+ fHMPIDsignal(track.fHMPIDsignal),
+ fTrackLength(track.fTrackLength),
+ fdTPC(track.fdTPC),fzTPC(track.fzTPC),
+ fCddTPC(track.fCddTPC),fCdzTPC(track.fCdzTPC),fCzzTPC(track.fCzzTPC),
+ fCchi2TPC(track.fCchi2TPC),
+ fD(track.fD),fZ(track.fZ),
+ fCdd(track.fCdd),fCdz(track.fCdz),fCzz(track.fCzz),
+ fCchi2(track.fCchi2),
+ fITSchi2(track.fITSchi2),
+ fTPCchi2(track.fTPCchi2),
+ fTRDchi2(track.fTRDchi2),
+ fTOFchi2(track.fTOFchi2),
+ fHMPIDchi2(track.fHMPIDchi2),
+ fGlobalChi2(track.fGlobalChi2),
+ fITSsignal(track.fITSsignal),
+ fTPCsignal(track.fTPCsignal),
+ fTPCsignalS(track.fTPCsignalS),
+ fTRDsignal(track.fTRDsignal),
+ fTRDQuality(track.fTRDQuality),
+ fTRDBudget(track.fTRDBudget),
+ fTOFsignal(track.fTOFsignal),
+ fTOFsignalToT(track.fTOFsignalToT),
+ fTOFsignalRaw(track.fTOFsignalRaw),
+ fTOFsignalDz(track.fTOFsignalDz),
+ fTOFsignalDx(track.fTOFsignalDx),
+ fHMPIDtrkX(track.fHMPIDtrkX),
+ fHMPIDtrkY(track.fHMPIDtrkY),
+ fHMPIDmipX(track.fHMPIDmipX),
+ fHMPIDmipY(track.fHMPIDmipY),
+ fTPCncls(track.fTPCncls),
+ fTPCnclsF(track.fTPCnclsF),
+ fTPCsignalN(track.fTPCsignalN),
+ fITSncls(track.fITSncls),
+ fITSClusterMap(track.fITSClusterMap),
+ fTRDncls(track.fTRDncls),
+ fTRDncls0(track.fTRDncls0),
+ fTRDntracklets(track.fTRDntracklets),
+ fTRDnSlices(track.fTRDnSlices),
+ fTRDslices(0x0),
+ fVertexID(track.fVertexID),
+ fESDEvent(track.fESDEvent)
+{
//
//copy constructor
//
- fFlags = track.fFlags;
- fLabel =track.fLabel;
- fID = track.fID;
- fTrackLength =track.fTrackLength;
- fD=track.fD; fZ=track.fZ;
- for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i] =track.fTrackTime[i];
- for (Int_t i=0;i<AliPID::kSPECIES;i++) fR[i] =track.fR[i];
- fStopVertex =track.fStopVertex;
- //
- fRalpha =track.fRalpha;
- fRx =track.fRx;
- for (Int_t i=0;i<5;i++) fRp[i] =track.fRp[i];
- for (Int_t i=0;i<15;i++) fRc[i] =track.fRc[i];
- //
- fCalpha =track.fCalpha;
- fCx =track.fCx;
- for (Int_t i=0;i<5;i++) fCp[i] =track.fCp[i];
- for (Int_t i=0;i<15;i++) fCc[i] =track.fCc[i];
- fCchi2 =track.fCchi2;
- //
- fIalpha =track.fIalpha;
- fIx =track.fIx;
- for (Int_t i=0;i<5;i++) fIp[i] =track.fIp[i];
- for (Int_t i=0;i<15;i++) fIc[i] =track.fIc[i];
- //
- fTalpha =track.fTalpha;
- fTx =track.fTx;
- for (Int_t i=0;i<5;i++) fTp[i] =track.fTp[i];
- for (Int_t i=0;i<15;i++) fTc[i] =track.fTc[i];
- //
- fITSchi2 =track.fITSchi2;
- for (Int_t i=0;i<12;i++) fITSchi2MIP[i] =track.fITSchi2MIP[i];
- fITSncls =track.fITSncls;
- for (Int_t i=0;i<6;i++) fITSindex[i]=track.fITSindex[i];
- fITSsignal =track.fITSsignal;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i]=track.fTrackTime[i];
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fR[i]=track.fR[i];
+ //
for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=track.fITSr[i];
- fITSLabel =track.fITSLabel;
- fITSFakeRatio =track.fITSFakeRatio;
- fITStrack =0; //coping separatelly - in user code
- //
- fTPCchi2 =track.fTPCchi2;
- fTPCncls =track.fTPCncls;
- for (Int_t i=0;i<180;i++) fTPCindex[i]=track.fTPCindex[i];
- fTPCClusterMap=track.fTPCClusterMap;
- fTPCsignal=track.fTPCsignal;
+ //
for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=track.fTPCr[i];
- fTPCLabel=track.fTPCLabel;
+ for (Int_t i=0;i<4;i++) {fITSdEdxSamples[i]=track.fITSdEdxSamples[i];}
for (Int_t i=0;i<4;i++) {fTPCPoints[i]=track.fTPCPoints[i];}
for (Int_t i=0; i<3;i++) { fKinkIndexes[i]=track.fKinkIndexes[i];}
for (Int_t i=0; i<3;i++) { fV0Indexes[i]=track.fV0Indexes[i];}
//
- fTRDchi2=track.fTRDchi2;
- fTRDncls=track.fTRDncls;
- fTRDncls0=track.fTRDncls0;
- for (Int_t i=0;i<130;i++) fTRDindex[i]=track.fTRDindex[i];
- fTRDsignal=track.fTRDsignal;
- for (Int_t i=0;i<kNPlane;i++) {
- fTRDsignals[i]=track.fTRDsignals[i];
- fTRDTimBin[i]=track.fTRDTimBin[i];
+ for (Int_t i=0;i<kTRDnPlanes;i++) {
+ fTRDTimBin[i]=track.fTRDTimBin[i];
}
+
+ if (fTRDnSlices) {
+ fTRDslices=new Double32_t[fTRDnSlices];
+ for (Int_t i=0; i<fTRDnSlices; i++) fTRDslices[i]=track.fTRDslices[i];
+ }
+
for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i]=track.fTRDr[i];
- fTRDLabel=track.fTRDLabel;
- fTRDtrack=0;
- fTRDQuality = track.fTRDQuality;
- //
- fTOFchi2=track.fTOFchi2;
- fTOFindex=track.fTOFindex;
- fTOFsignal=track.fTOFsignal;
for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i]=track.fTOFr[i];
for (Int_t i=0;i<3;i++) fTOFLabel[i]=track.fTOFLabel[i];
for (Int_t i=0;i<10;i++) fTOFInfo[i]=track.fTOFInfo[i];
+ for (Int_t i=0;i<12;i++) fITSModule[i]=track.fITSModule[i];
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fHMPIDr[i]=track.fHMPIDr[i];
+
+ if (track.fCp) fCp=new AliExternalTrackParam(*track.fCp);
+ if (track.fIp) fIp=new AliExternalTrackParam(*track.fIp);
+ if (track.fTPCInner) fTPCInner=new AliExternalTrackParam(*track.fTPCInner);
+ if (track.fOp) fOp=new AliExternalTrackParam(*track.fOp);
+ if (track.fHMPIDp) fHMPIDp=new AliExternalTrackParam(*track.fHMPIDp);
+
+ if (track.fFriendTrack) fFriendTrack=new AliESDfriendTrack(*(track.fFriendTrack));
+}
+
+//_______________________________________________________________________
+AliESDtrack::AliESDtrack(const AliVTrack *track) :
+ AliExternalTrackParam(track),
+ fCp(0),
+ fIp(0),
+ fTPCInner(0),
+ fOp(0),
+ fHMPIDp(0),
+ fFriendTrack(0),
+ fTPCClusterMap(159),//number of padrows
+ fTPCSharedMap(159),//number of padrows
+ fFlags(0),
+ fID(),
+ fLabel(0),
+ fITSLabel(0),
+ fTPCLabel(0),
+ fTRDLabel(0),
+ fTOFCalChannel(0),
+ fTOFindex(-1),
+ fHMPIDqn(0),
+ fHMPIDcluIdx(-1),
+ fEMCALindex(kEMCALNoMatch),
+ fHMPIDtrkTheta(0),
+ fHMPIDtrkPhi(0),
+ fHMPIDsignal(0),
+ fTrackLength(0),
+ fdTPC(0),fzTPC(0),
+ fCddTPC(0),fCdzTPC(0),fCzzTPC(0),
+ fCchi2TPC(0),
+ fD(0),fZ(0),
+ fCdd(0),fCdz(0),fCzz(0),
+ fCchi2(0),
+ fITSchi2(0),
+ fTPCchi2(0),
+ fTRDchi2(0),
+ fTOFchi2(0),
+ fHMPIDchi2(0),
+ fGlobalChi2(0),
+ fITSsignal(0),
+ fTPCsignal(0),
+ fTPCsignalS(0),
+ fTRDsignal(0),
+ fTRDQuality(0),
+ fTRDBudget(0),
+ fTOFsignal(0),
+ fTOFsignalToT(0),
+ fTOFsignalRaw(0),
+ fTOFsignalDz(0),
+ fTOFsignalDx(0),
+ fHMPIDtrkX(0),
+ fHMPIDtrkY(0),
+ fHMPIDmipX(0),
+ fHMPIDmipY(0),
+ fTPCncls(0),
+ fTPCnclsF(0),
+ fTPCsignalN(0),
+ fITSncls(0),
+ fITSClusterMap(0),
+ fTRDncls(0),
+ fTRDncls0(0),
+ fTRDntracklets(0),
+ fTRDnSlices(0),
+ fTRDslices(0x0),
+ fVertexID(-2), // -2 means an orphan track
+ fESDEvent(0)
+{
+ //
+ // ESD track from AliVTrack.
+ // This is not a copy constructor !
//
- for (Int_t i=0;i<3;i++) fPHOSpos[i]=track.fPHOSpos[i];
- fPHOSsignal=track.fPHOSsignal;
- for (Int_t i=0;i<AliPID::kSPECIESN;i++) fPHOSr[i]=track.fPHOSr[i];
+
+ if (track->InheritsFrom("AliExternalTrackParam")) {
+ AliError("This is not a copy constructor. Use AliESDtrack(const AliESDtrack &) !");
+ AliWarning("Calling the default constructor...");
+ AliESDtrack();
+ return;
+ }
+
+ // Reset all the arrays
+ Int_t i;
+ for (i=0; i<AliPID::kSPECIES; i++) {
+ fTrackTime[i]=0.;
+ fR[i]=0.;
+ fITSr[i]=0.;
+ fTPCr[i]=0.;
+ fTRDr[i]=0.;
+ fTOFr[i]=0.;
+ fHMPIDr[i]=0.;
+ }
+
+ for (i=0; i<3; i++) { fKinkIndexes[i]=0;}
+ for (i=0; i<3; i++) { fV0Indexes[i]=-1;}
+ for (i=0;i<kTRDnPlanes;i++) {
+ fTRDTimBin[i]=0;
+ }
+ for (i=0;i<4;i++) {fITSdEdxSamples[i]=0.;}
+ for (i=0;i<4;i++) {fTPCPoints[i]=0;}
+ for (i=0;i<3;i++) {fTOFLabel[i]=0;}
+ for (i=0;i<10;i++) {fTOFInfo[i]=0;}
+ for (i=0;i<12;i++) {fITSModule[i]=-1;}
+
+ // Set the ID
+ SetID(track->GetID());
+
+ // Set ITS cluster map
+ fITSClusterMap=track->GetITSClusterMap();
+
+ fITSncls=0;
+ for(i=0; i<6; i++) {
+ if(HasPointOnITSLayer(i)) fITSncls++;
+ }
+
+ // Set the combined PID
+ const Double_t *pid = track->PID();
+ if(pid){
+ for (i=0; i<AliPID::kSPECIES; i++) fR[i]=pid[i];
+ }
+ // AliESD track label
+ SetLabel(track->GetLabel());
+ // Set the status
+ SetStatus(track->GetStatus());
+}
+
+//_______________________________________________________________________
+AliESDtrack::AliESDtrack(TParticle * part) :
+ AliExternalTrackParam(),
+ fCp(0),
+ fIp(0),
+ fTPCInner(0),
+ fOp(0),
+ fHMPIDp(0),
+ fFriendTrack(0),
+ fTPCClusterMap(159),//number of padrows
+ fTPCSharedMap(159),//number of padrows
+ fFlags(0),
+ fID(0),
+ fLabel(0),
+ fITSLabel(0),
+ fTPCLabel(0),
+ fTRDLabel(0),
+ fTOFCalChannel(0),
+ fTOFindex(-1),
+ fHMPIDqn(0),
+ fHMPIDcluIdx(-1),
+ fEMCALindex(kEMCALNoMatch),
+ fHMPIDtrkTheta(0),
+ fHMPIDtrkPhi(0),
+ fHMPIDsignal(0),
+ fTrackLength(0),
+ fdTPC(0),fzTPC(0),
+ fCddTPC(0),fCdzTPC(0),fCzzTPC(0),
+ fCchi2TPC(0),
+ fD(0),fZ(0),
+ fCdd(0),fCdz(0),fCzz(0),
+ fCchi2(0),
+ fITSchi2(0),
+ fTPCchi2(0),
+ fTRDchi2(0),
+ fTOFchi2(0),
+ fHMPIDchi2(0),
+ fGlobalChi2(0),
+ fITSsignal(0),
+ fTPCsignal(0),
+ fTPCsignalS(0),
+ fTRDsignal(0),
+ fTRDQuality(0),
+ fTRDBudget(0),
+ fTOFsignal(0),
+ fTOFsignalToT(0),
+ fTOFsignalRaw(0),
+ fTOFsignalDz(0),
+ fTOFsignalDx(0),
+ fHMPIDtrkX(0),
+ fHMPIDtrkY(0),
+ fHMPIDmipX(0),
+ fHMPIDmipY(0),
+ fTPCncls(0),
+ fTPCnclsF(0),
+ fTPCsignalN(0),
+ fITSncls(0),
+ fITSClusterMap(0),
+ fTRDncls(0),
+ fTRDncls0(0),
+ fTRDntracklets(0),
+ fTRDnSlices(0),
+ fTRDslices(0x0),
+ fVertexID(-2), // -2 means an orphan track
+ fESDEvent(0)
+{
//
- for (Int_t i=0;i<3;i++) fEMCALpos[i]=track.fEMCALpos[i];
- fEMCALsignal=track.fEMCALsignal;
- for (Int_t i=0;i<AliPID::kSPECIESN;i++) fEMCALr[i]=track.fEMCALr[i];
+ // ESD track from TParticle
//
- fRICHchi2=track.fRICHchi2;
- fRICHncls=track.fRICHncls;
- fRICHindex=track.fRICHindex;
- fRICHsignal=track.fRICHsignal;
- for (Int_t i=0;i<AliPID::kSPECIES;i++) fRICHr[i]=track.fRICHr[i];
- fRICHtheta=track.fRICHtheta;
- fRICHphi=track.fRICHphi;
- fRICHdx=track.fRICHdx;
- fRICHdy=track.fRICHdy;
+
+ // Reset all the arrays
+ Int_t i;
+ for (i=0; i<AliPID::kSPECIES; i++) {
+ fTrackTime[i]=0.;
+ fR[i]=0.;
+ fITSr[i]=0.;
+ fTPCr[i]=0.;
+ fTRDr[i]=0.;
+ fTOFr[i]=0.;
+ fHMPIDr[i]=0.;
+ }
+
+ for (i=0; i<3; i++) { fKinkIndexes[i]=0;}
+ for (i=0; i<3; i++) { fV0Indexes[i]=-1;}
+ for (i=0;i<kTRDnPlanes;i++) {
+ fTRDTimBin[i]=0;
+ }
+ for (i=0;i<4;i++) {fITSdEdxSamples[i]=0.;}
+ for (i=0;i<4;i++) {fTPCPoints[i]=0;}
+ for (i=0;i<3;i++) {fTOFLabel[i]=0;}
+ for (i=0;i<10;i++) {fTOFInfo[i]=0;}
+ for (i=0;i<12;i++) {fITSModule[i]=-1;}
+
+ // Calculate the AliExternalTrackParam content
+
+ Double_t xref;
+ Double_t alpha;
+ Double_t param[5];
+ Double_t covar[15];
+
+ // Calculate alpha: the rotation angle of the corresponding local system (TPC sector)
+ alpha = part->Phi()*180./TMath::Pi();
+ if (alpha<0) alpha+= 360.;
+ if (alpha>360) alpha -= 360.;
+
+ Int_t sector = (Int_t)(alpha/20.);
+ alpha = 10. + 20.*sector;
+ alpha /= 180;
+ alpha *= TMath::Pi();
+
+ // Covariance matrix: no errors, the parameters are exact
+ for (i=0; i<15; i++) covar[i]=0.;
+
+ // Get the vertex of origin and the momentum
+ TVector3 ver(part->Vx(),part->Vy(),part->Vz());
+ TVector3 mom(part->Px(),part->Py(),part->Pz());
+
+ // Rotate to the local coordinate system (TPC sector)
+ ver.RotateZ(-alpha);
+ mom.RotateZ(-alpha);
+
+ // X of the referense plane
+ xref = ver.X();
+
+ Int_t pdgCode = part->GetPdgCode();
+
+ Double_t charge =
+ TDatabasePDG::Instance()->GetParticle(pdgCode)->Charge();
+
+ param[0] = ver.Y();
+ param[1] = ver.Z();
+ param[2] = TMath::Sin(mom.Phi());
+ param[3] = mom.Pz()/mom.Pt();
+ param[4] = TMath::Sign(1/mom.Pt(),charge);
+
+ // Set AliExternalTrackParam
+ Set(xref, alpha, param, covar);
+
+ // Set the PID
+ Int_t indexPID = 99;
+
+ switch (TMath::Abs(pdgCode)) {
+
+ case 11: // electron
+ indexPID = 0;
+ break;
+
+ case 13: // muon
+ indexPID = 1;
+ break;
+
+ case 211: // pion
+ indexPID = 2;
+ break;
+
+ case 321: // kaon
+ indexPID = 3;
+ break;
+
+ case 2212: // proton
+ indexPID = 4;
+ break;
+
+ default:
+ break;
+ }
+
+ // If the particle is not e,mu,pi,K or p the PID probabilities are set to 0
+ if (indexPID < AliPID::kSPECIES) {
+ fR[indexPID]=1.;
+ fITSr[indexPID]=1.;
+ fTPCr[indexPID]=1.;
+ fTRDr[indexPID]=1.;
+ fTOFr[indexPID]=1.;
+ fHMPIDr[indexPID]=1.;
+
+ }
+ // AliESD track label
+ SetLabel(part->GetUniqueID());
+
}
+
//_______________________________________________________________________
AliESDtrack::~AliESDtrack(){
//
// This is destructor according Coding Conventrions
//
//printf("Delete track\n");
- delete fITStrack;
- delete fTRDtrack;
+ delete fIp;
+ delete fTPCInner;
+ delete fOp;
+ delete fHMPIDp;
+ delete fCp;
+ delete fFriendTrack;
+ if(fTRDnSlices)
+ delete[] fTRDslices;
+}
+
+AliESDtrack &AliESDtrack::operator=(const AliESDtrack &source){
+
+
+ if(&source == this) return *this;
+ AliExternalTrackParam::operator=(source);
+
+
+ if(source.fCp){
+ // we have the trackparam: assign or copy construct
+ if(fCp)*fCp = *source.fCp;
+ else fCp = new AliExternalTrackParam(*source.fCp);
+ }
+ else{
+ // no track param delete the old one
+ if(fCp)delete fCp;
+ fCp = 0;
+ }
+
+ if(source.fIp){
+ // we have the trackparam: assign or copy construct
+ if(fIp)*fIp = *source.fIp;
+ else fIp = new AliExternalTrackParam(*source.fIp);
+ }
+ else{
+ // no track param delete the old one
+ if(fIp)delete fIp;
+ fIp = 0;
+ }
+
+
+ if(source.fTPCInner){
+ // we have the trackparam: assign or copy construct
+ if(fTPCInner) *fTPCInner = *source.fTPCInner;
+ else fTPCInner = new AliExternalTrackParam(*source.fTPCInner);
+ }
+ else{
+ // no track param delete the old one
+ if(fTPCInner)delete fTPCInner;
+ fTPCInner = 0;
+ }
+
+
+ if(source.fOp){
+ // we have the trackparam: assign or copy construct
+ if(fOp) *fOp = *source.fOp;
+ else fOp = new AliExternalTrackParam(*source.fOp);
+ }
+ else{
+ // no track param delete the old one
+ if(fOp)delete fOp;
+ fOp = 0;
+ }
+
+
+ if(source.fHMPIDp){
+ // we have the trackparam: assign or copy construct
+ if(fHMPIDp) *fHMPIDp = *source.fHMPIDp;
+ else fHMPIDp = new AliExternalTrackParam(*source.fHMPIDp);
+ }
+ else{
+ // no track param delete the old one
+ if(fHMPIDp)delete fHMPIDp;
+ fHMPIDp = 0;
+ }
+
+
+ // copy also the friend track
+ // use copy constructor
+ if(source.fFriendTrack){
+ // we have the trackparam: assign or copy construct
+ delete fFriendTrack; fFriendTrack=new AliESDfriendTrack(*source.fFriendTrack);
+ }
+ else{
+ // no track param delete the old one
+ delete fFriendTrack; fFriendTrack= 0;
+ }
+
+ fTPCClusterMap = source.fTPCClusterMap;
+ fTPCSharedMap = source.fTPCSharedMap;
+ // the simple stuff
+ fFlags = source.fFlags;
+ fID = source.fID;
+ fLabel = source.fLabel;
+ fITSLabel = source.fITSLabel;
+ for(int i = 0; i< 12;++i){
+ fITSModule[i] = source.fITSModule[i];
+ }
+ fTPCLabel = source.fTPCLabel;
+ fTRDLabel = source.fTRDLabel;
+ for(int i = 0; i< 3;++i){
+ fTOFLabel[i] = source.fTOFLabel[i];
+ }
+ fTOFCalChannel = source.fTOFCalChannel;
+ fTOFindex = source.fTOFindex;
+ fHMPIDqn = source.fHMPIDqn;
+ fHMPIDcluIdx = source.fHMPIDcluIdx;
+ fEMCALindex = source.fEMCALindex;
+
+ for(int i = 0; i< 3;++i){
+ fKinkIndexes[i] = source.fKinkIndexes[i];
+ fV0Indexes[i] = source.fV0Indexes[i];
+ }
+
+ for(int i = 0; i< AliPID::kSPECIES;++i){
+ fR[i] = source.fR[i];
+ fITSr[i] = source.fITSr[i];
+ fTPCr[i] = source.fTPCr[i];
+ fTRDr[i] = source.fTRDr[i];
+ fTOFr[i] = source.fTOFr[i];
+ fHMPIDr[i] = source.fHMPIDr[i];
+ fTrackTime[i] = source.fTrackTime[i];
+ }
+
+ fHMPIDtrkTheta = source.fHMPIDtrkTheta;
+ fHMPIDtrkPhi = source.fHMPIDtrkPhi;
+ fHMPIDsignal = source.fHMPIDsignal;
+
+
+ fTrackLength = source. fTrackLength;
+ fdTPC = source.fdTPC;
+ fzTPC = source.fzTPC;
+ fCddTPC = source.fCddTPC;
+ fCdzTPC = source.fCdzTPC;
+ fCzzTPC = source.fCzzTPC;
+ fCchi2TPC = source.fCchi2TPC;
+
+ fD = source.fD;
+ fZ = source.fZ;
+ fCdd = source.fCdd;
+ fCdz = source.fCdz;
+ fCzz = source.fCzz;
+ fCchi2 = source.fCchi2;
+
+ fITSchi2 = source.fITSchi2;
+ fTPCchi2 = source.fTPCchi2;
+ fTRDchi2 = source.fTRDchi2;
+ fTOFchi2 = source.fTOFchi2;
+ fHMPIDchi2 = source.fHMPIDchi2;
+
+ fGlobalChi2 = source.fGlobalChi2;
+
+ fITSsignal = source.fITSsignal;
+ for (Int_t i=0;i<4;i++) {fITSdEdxSamples[i]=source.fITSdEdxSamples[i];}
+ fTPCsignal = source.fTPCsignal;
+ fTPCsignalS = source.fTPCsignalS;
+ for(int i = 0; i< 4;++i){
+ fTPCPoints[i] = source.fTPCPoints[i];
+ }
+ fTRDsignal = source.fTRDsignal;
+
+ for(int i = 0;i < kTRDnPlanes;++i){
+ fTRDTimBin[i] = source.fTRDTimBin[i];
+ }
+
+ if(fTRDnSlices)
+ delete[] fTRDslices;
+ fTRDslices=0;
+ fTRDnSlices=source.fTRDnSlices;
+ if (fTRDnSlices) {
+ fTRDslices=new Double32_t[fTRDnSlices];
+ for(int j = 0;j < fTRDnSlices;++j) fTRDslices[j] = source.fTRDslices[j];
+ }
+
+ fTRDQuality = source.fTRDQuality;
+ fTRDBudget = source.fTRDBudget;
+ fTOFsignal = source.fTOFsignal;
+ fTOFsignalToT = source.fTOFsignalToT;
+ fTOFsignalRaw = source.fTOFsignalRaw;
+ fTOFsignalDz = source.fTOFsignalDz;
+ fTOFsignalDx = source.fTOFsignalDx;
+
+ for(int i = 0;i<10;++i){
+ fTOFInfo[i] = source.fTOFInfo[i];
+ }
+
+ fHMPIDtrkX = source.fHMPIDtrkX;
+ fHMPIDtrkY = source.fHMPIDtrkY;
+ fHMPIDmipX = source.fHMPIDmipX;
+ fHMPIDmipY = source.fHMPIDmipY;
+
+ fTPCncls = source.fTPCncls;
+ fTPCnclsF = source.fTPCnclsF;
+ fTPCsignalN = source.fTPCsignalN;
+
+ fITSncls = source.fITSncls;
+ fITSClusterMap = source.fITSClusterMap;
+ fTRDncls = source.fTRDncls;
+ fTRDncls0 = source.fTRDncls0;
+ fTRDntracklets = source.fTRDntracklets;
+ fVertexID = source.fVertexID;
+ return *this;
+}
+
+
+
+void AliESDtrack::Copy(TObject &obj) const {
+
+ // this overwrites the virtual TOBject::Copy()
+ // to allow run time copying without casting
+ // in AliESDEvent
+
+ if(this==&obj)return;
+ AliESDtrack *robj = dynamic_cast<AliESDtrack*>(&obj);
+ if(!robj)return; // not an AliESDtrack
+ *robj = *this;
+
+}
+
+
+
+void AliESDtrack::AddCalibObject(TObject * object){
+ //
+ // add calib object to the list
+ //
+ if (!fFriendTrack) fFriendTrack = new AliESDfriendTrack;
+ fFriendTrack->AddCalibObject(object);
}
+TObject * AliESDtrack::GetCalibObject(Int_t index){
+ //
+ // return calib objct at given position
+ //
+ if (!fFriendTrack) return 0;
+ return fFriendTrack->GetCalibObject(index);
+}
+
+
+Bool_t AliESDtrack::FillTPCOnlyTrack(AliESDtrack &track){
+
+ // Fills the information of the TPC-only first reconstruction pass
+ // into the passed ESDtrack object. For consistency fTPCInner is also filled
+ // again
+
+
+
+ // For data produced before r26675
+ // RelateToVertexTPC was not properly called during reco
+ // so you'll have to call it again, before FillTPCOnlyTrack
+ // Float_t p[2],cov[3];
+ // track->GetImpactParametersTPC(p,cov);
+ // if(p[0]==0&&p[1]==0) // <- Default values
+ // track->RelateToVertexTPC(esd->GetPrimaryVertexTPC(),esd->GetMagneticField(),kVeryBig);
+
+
+ if(!fTPCInner)return kFALSE;
+
+ // fill the TPC track params to the global track parameters
+ track.Set(fTPCInner->GetX(),fTPCInner->GetAlpha(),fTPCInner->GetParameter(),fTPCInner->GetCovariance());
+ track.fD = fdTPC;
+ track.fZ = fzTPC;
+ track.fCdd = fCddTPC;
+ track.fCdz = fCdzTPC;
+ track.fCzz = fCzzTPC;
+
+ // copy the TPCinner parameters
+ if(track.fTPCInner) *track.fTPCInner = *fTPCInner;
+ else track.fTPCInner = new AliExternalTrackParam(*fTPCInner);
+ track.fdTPC = fdTPC;
+ track.fzTPC = fzTPC;
+ track.fCddTPC = fCddTPC;
+ track.fCdzTPC = fCdzTPC;
+ track.fCzzTPC = fCzzTPC;
+ track.fCchi2TPC = fCchi2TPC;
+
+
+ // copy all other TPC specific parameters
+
+ // replace label by TPC label
+ track.fLabel = fTPCLabel;
+ track.fTPCLabel = fTPCLabel;
+
+ track.fTPCchi2 = fTPCchi2;
+ track.fTPCsignal = fTPCsignal;
+ track.fTPCsignalS = fTPCsignalS;
+ for(int i = 0;i<4;++i)track.fTPCPoints[i] = fTPCPoints[i];
+
+ track.fTPCncls = fTPCncls;
+ track.fTPCnclsF = fTPCnclsF;
+ track.fTPCsignalN = fTPCsignalN;
+
+ // PID
+ for(int i=0;i<AliPID::kSPECIES;++i){
+ track.fTPCr[i] = fTPCr[i];
+ // combined PID is TPC only!
+ track.fR[i] = fTPCr[i];
+ }
+ track.fTPCClusterMap = fTPCClusterMap;
+ track.fTPCSharedMap = fTPCSharedMap;
+
+
+ // reset the flags
+ track.fFlags = kTPCin;
+ track.fID = fID;
+
+ track.fFlags |= fFlags & kTPCpid; //copy the TPCpid status flag
+
+ for (Int_t i=0;i<3;i++) track.fKinkIndexes[i] = fKinkIndexes[i];
+
+ return kTRUE;
+
+}
+
+//_______________________________________________________________________
+void AliESDtrack::MakeMiniESDtrack(){
+ // Resets everything except
+ // fFlags: Reconstruction status flags
+ // fLabel: Track label
+ // fID: Unique ID of the track
+ // Impact parameter information
+ // fR[AliPID::kSPECIES]: combined "detector response probability"
+ // Running track parameters in the base class (AliExternalTrackParam)
+
+ fTrackLength = 0;
+
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i] = 0;
+
+ // Reset track parameters constrained to the primary vertex
+ delete fCp;fCp = 0;
+
+ // Reset track parameters at the inner wall of TPC
+ delete fIp;fIp = 0;
+ delete fTPCInner;fTPCInner=0;
+ // Reset track parameters at the inner wall of the TRD
+ delete fOp;fOp = 0;
+ // Reset track parameters at the HMPID
+ delete fHMPIDp;fHMPIDp = 0;
+
+
+ // Reset ITS track related information
+ fITSchi2 = 0;
+ fITSncls = 0;
+ fITSClusterMap=0;
+ fITSsignal = 0;
+ for (Int_t i=0;i<4;i++) fITSdEdxSamples[i] = 0.;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=0;
+ fITSLabel = 0;
+
+ // Reset TPC related track information
+ fTPCchi2 = 0;
+ fTPCncls = 0;
+ fTPCnclsF = 0;
+ fTPCClusterMap = 0;
+ fTPCSharedMap = 0;
+ fTPCsignal= 0;
+ fTPCsignalS= 0;
+ fTPCsignalN= 0;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0;
+ fTPCLabel=0;
+ for (Int_t i=0;i<4;i++) fTPCPoints[i] = 0;
+ for (Int_t i=0; i<3;i++) fKinkIndexes[i] = 0;
+ for (Int_t i=0; i<3;i++) fV0Indexes[i] = 0;
+
+ // Reset TRD related track information
+ fTRDchi2 = 0;
+ fTRDncls = 0;
+ fTRDncls0 = 0;
+ fTRDsignal = 0;
+ for (Int_t i=0;i<kTRDnPlanes;i++) {
+ fTRDTimBin[i] = 0;
+ }
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i] = 0;
+ fTRDLabel = 0;
+ fTRDQuality = 0;
+ fTRDntracklets = 0;
+ if(fTRDnSlices)
+ delete[] fTRDslices;
+ fTRDslices=0x0;
+ fTRDnSlices=0;
+ fTRDBudget = 0;
+
+ // Reset TOF related track information
+ fTOFchi2 = 0;
+ fTOFindex = -1;
+ fTOFsignal = 0;
+ fTOFCalChannel = 0;
+ fTOFsignalToT = 0;
+ fTOFsignalRaw = 0;
+ fTOFsignalDz = 0;
+ fTOFsignalDx = 0;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i] = 0;
+ for (Int_t i=0;i<3;i++) fTOFLabel[i] = 0;
+ for (Int_t i=0;i<10;i++) fTOFInfo[i] = 0;
+
+ // Reset HMPID related track information
+ fHMPIDchi2 = 0;
+ fHMPIDqn = 0;
+ fHMPIDcluIdx = -1;
+ fHMPIDsignal = 0;
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fHMPIDr[i] = 0;
+ fHMPIDtrkTheta = 0;
+ fHMPIDtrkPhi = 0;
+ fHMPIDtrkX = 0;
+ fHMPIDtrkY = 0;
+ fHMPIDmipX = 0;
+ fHMPIDmipY = 0;
+ fEMCALindex = kEMCALNoMatch;
+
+ // reset global track chi2
+ fGlobalChi2 = 0;
+
+ fVertexID = -2; // an orphan track
+
+ delete fFriendTrack; fFriendTrack = 0;
+}
//_______________________________________________________________________
Double_t AliESDtrack::GetMass() const {
// Returns the mass of the most probable particle type
return AliPID::ParticleMass(AliPID::kPion);
}
+//______________________________________________________________________________
+Double_t AliESDtrack::E() const
+{
+ // Returns the energy of the particle given its assumed mass.
+ // Assumes the pion mass if the particle can't be identified properly.
+
+ Double_t m = M();
+ Double_t p = P();
+ return TMath::Sqrt(p*p + m*m);
+}
+
+//______________________________________________________________________________
+Double_t AliESDtrack::Y() const
+{
+ // Returns the rapidity of a particle given its assumed mass.
+ // Assumes the pion mass if the particle can't be identified properly.
+
+ Double_t e = E();
+ Double_t pz = Pz();
+ if (e != TMath::Abs(pz)) { // energy was not equal to pz
+ return 0.5*TMath::Log((e+pz)/(e-pz));
+ } else { // energy was equal to pz
+ return -999.;
+ }
+}
+
//_______________________________________________________________________
-Bool_t AliESDtrack::UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags) {
+Bool_t AliESDtrack::UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags){
//
// This function updates track's running parameters
//
+ Int_t *index=0;
Bool_t rc=kTRUE;
SetStatus(flags);
SetIntegratedLength(t->GetIntegratedLength());
}
- fRalpha=t->GetAlpha();
- t->GetExternalParameters(fRx,fRp);
- t->GetExternalCovariance(fRc);
-
+ Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
+ if (flags==kITSout) fFriendTrack->SetITSOut(*t);
+ if (flags==kTPCout) fFriendTrack->SetTPCOut(*t);
+ if (flags==kTRDrefit) fFriendTrack->SetTRDIn(*t);
+
switch (flags) {
case kITSin: case kITSout: case kITSrefit:
+ fITSClusterMap=0;
fITSncls=t->GetNumberOfClusters();
+ index=fFriendTrack->GetITSindices();
+ for (Int_t i=0;i<AliESDfriendTrack::kMaxITScluster;i++) {
+ index[i]=t->GetClusterIndex(i);
+ if (i<fITSncls) {
+ Int_t l=(index[i] & 0xf0000000) >> 28;
+ SETBIT(fITSClusterMap,l);
+ }
+ }
fITSchi2=t->GetChi2();
- for (Int_t i=0;i<fITSncls;i++) fITSindex[i]=t->GetClusterIndex(i);
fITSsignal=t->GetPIDsignal();
fITSLabel = t->GetLabel();
- fITSFakeRatio = t->GetFakeRatio();
+ // keep in fOp the parameters outside ITS for ITS stand-alone tracks
+ if (flags==kITSout) {
+ if (!fOp) fOp=new AliExternalTrackParam(*t);
+ else
+ fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
+ }
break;
case kTPCin: case kTPCrefit:
fTPCLabel = t->GetLabel();
- fIalpha=fRalpha;
- fIx=fRx;
- {
- Int_t i;
- for (i=0; i<5; i++) fIp[i]=fRp[i];
- for (i=0; i<15;i++) fIc[i]=fRc[i];
- }
+ if (flags==kTPCin) fTPCInner=new AliExternalTrackParam(*t);
+ if (!fIp) fIp=new AliExternalTrackParam(*t);
+ else
+ fIp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
case kTPCout:
-
- fTPCncls=t->GetNumberOfClusters();
+ index=fFriendTrack->GetTPCindices();
+ if (flags & kTPCout){
+ if (!fOp) fOp=new AliExternalTrackParam(*t);
+ else
+ fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
+ }
+ fTPCncls=t->GetNumberOfClusters();
fTPCchi2=t->GetChi2();
{//prevrow must be declared in separate namespace, otherwise compiler cries:
//"jump to case label crosses initialization of `Int_t prevrow'"
Int_t prevrow = -1;
// for (Int_t i=0;i<fTPCncls;i++)
- for (Int_t i=0;i<160;i++)
+ for (Int_t i=0;i<AliESDfriendTrack::kMaxTPCcluster;i++)
{
- fTPCindex[i]=t->GetClusterIndex(i);
+ index[i]=t->GetClusterIndex(i);
+ Int_t idx = index[i];
+
+ if (idx<0) continue;
// Piotr's Cluster Map for HBT
// ### please change accordingly if cluster array is changing
// to "New TPC Tracking" style (with gaps in array)
- Int_t idx = fTPCindex[i];
Int_t sect = (idx&0xff000000)>>24;
Int_t row = (idx&0x00ff0000)>>16;
if (sect > 18) row +=63; //if it is outer sector, add number of inner sectors
}
}
fTPCsignal=t->GetPIDsignal();
- {Double_t mass=t->GetMass(); // preliminary mass setting
- if (mass>0.5) fR[4]=1.; // used by
- else if (mass<0.4) fR[2]=1.; // the ITS reconstruction
- else fR[3]=1.;}
- //
break;
- case kTRDout: case kTRDin: case kTRDrefit:
+ case kTRDin: case kTRDrefit:
+ break;
+ case kTRDout:
+ index = fFriendTrack->GetTRDindices();
fTRDLabel = t->GetLabel();
- fTRDncls=t->GetNumberOfClusters();
- fTRDchi2=t->GetChi2();
- for (Int_t i=0;i<fTRDncls;i++) fTRDindex[i]=t->GetClusterIndex(i);
+ fTRDchi2 = t->GetChi2();
+ fTRDncls = t->GetNumberOfClusters();
+ for (Int_t i=0;i<6;i++) index[i]=t->GetTrackletIndex(i);
+
fTRDsignal=t->GetPIDsignal();
break;
case kTRDbackup:
- t->GetExternalParameters(fTx,fTp);
- t->GetExternalCovariance(fTc);
- fTalpha = t->GetAlpha();
+ if (!fOp) fOp=new AliExternalTrackParam(*t);
+ else
+ fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
fTRDncls0 = t->GetNumberOfClusters();
break;
case kTOFin:
break;
case kTRDStop:
break;
+ case kHMPIDout:
+ if (!fHMPIDp) fHMPIDp=new AliExternalTrackParam(*t);
+ else
+ fHMPIDp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
+ break;
default:
AliError("Wrong flag !");
return kFALSE;
return rc;
}
-//_______________________________________________________________________
-void
-AliESDtrack::SetConstrainedTrackParams(const AliKalmanTrack *t, Double_t chi2) {
- //
- // This function sets the constrained track parameters
- //
- Int_t i;
- Double_t x,buf[15];
- fCalpha=t->GetAlpha();
- t->GetExternalParameters(x,buf); fCx=x;
- for (i=0; i<5; i++) fCp[i]=buf[i];
- t->GetExternalCovariance(buf);
- for (i=0; i<15; i++) fCc[i]=buf[i];
- fCchi2=chi2;
-}
-
-
//_______________________________________________________________________
void AliESDtrack::GetExternalParameters(Double_t &x, Double_t p[5]) const {
//---------------------------------------------------------------------
// This function returns external representation of the track parameters
//---------------------------------------------------------------------
- x=fRx;
- for (Int_t i=0; i<5; i++) p[i]=fRp[i];
-}
-
-//_______________________________________________________________________
-Bool_t AliESDtrack::GetExternalParametersAt(Double_t x, Double_t p[5]) const {
- //---------------------------------------------------------------------
- // This function returns external representation of the track parameters
- // at the position given by the first argument
- //---------------------------------------------------------------------
- Double_t dx=x-fRx;
- Double_t f1=fRp[2], f2=f1 + dx*fRp[4]/AliKalmanTrack::GetConvConst();
-
- if (TMath::Abs(f2) >= 0.9999) return kFALSE;
-
- Double_t r1=TMath::Sqrt(1.- f1*f1), r2=TMath::Sqrt(1.- f2*f2);
- p[0] = fRp[0] + dx*(f1+f2)/(r1+r2);
- p[1] = fRp[1] + dx*(f1+f2)/(f1*r2 + f2*r1)*fRp[3];
- p[2] = f2;
- p[3] = fRp[3];
- p[4] = fRp[4];
-
- return kTRUE;
+ x=GetX();
+ for (Int_t i=0; i<5; i++) p[i]=GetParameter()[i];
}
//_______________________________________________________________________
//---------------------------------------------------------------------
// This function returns external representation of the cov. matrix
//---------------------------------------------------------------------
- for (Int_t i=0; i<15; i++) cov[i]=fRc[i];
+ for (Int_t i=0; i<15; i++) cov[i]=AliExternalTrackParam::GetCovariance()[i];
}
-
//_______________________________________________________________________
-void
-AliESDtrack::GetConstrainedExternalParameters(Double_t &x, Double_t p[5])const{
+Bool_t AliESDtrack::GetConstrainedExternalParameters
+ (Double_t &alpha, Double_t &x, Double_t p[5]) const {
//---------------------------------------------------------------------
// This function returns the constrained external track parameters
//---------------------------------------------------------------------
- x=fCx;
- for (Int_t i=0; i<5; i++) p[i]=fCp[i];
+ if (!fCp) return kFALSE;
+ alpha=fCp->GetAlpha();
+ x=fCp->GetX();
+ for (Int_t i=0; i<5; i++) p[i]=fCp->GetParameter()[i];
+ return kTRUE;
}
+
//_______________________________________________________________________
-void
+Bool_t
AliESDtrack::GetConstrainedExternalCovariance(Double_t c[15]) const {
//---------------------------------------------------------------------
// This function returns the constrained external cov. matrix
//---------------------------------------------------------------------
- for (Int_t i=0; i<15; i++) c[i]=fCc[i];
+ if (!fCp) return kFALSE;
+ for (Int_t i=0; i<15; i++) c[i]=fCp->GetCovariance()[i];
+ return kTRUE;
}
-
-Double_t AliESDtrack::GetP() const {
+Bool_t
+AliESDtrack::GetInnerExternalParameters
+ (Double_t &alpha, Double_t &x, Double_t p[5]) const {
//---------------------------------------------------------------------
- // This function returns the track momentum
- // Results for (nearly) straight tracks are meaningless !
+ // This function returns external representation of the track parameters
+ // at the inner layer of TPC
//---------------------------------------------------------------------
- if (TMath::Abs(fRp[4])<=0) return 0;
- Double_t pt=1./TMath::Abs(fRp[4]);
- return pt*TMath::Sqrt(1.+ fRp[3]*fRp[3]);
-}
-
-Bool_t Local2GlobalMomentum(Double_t p[3],Double_t alpha) {
- //----------------------------------------------------------------
- // This function performs local->global transformation of the
- // track momentum.
- // When called, the arguments are:
- // p[0] = 1/pt of the track;
- // p[1] = sine of local azim. angle of the track momentum;
- // p[2] = tangent of the track momentum dip angle;
- // alpha - rotation angle.
- // The result is returned as:
- // p[0] = px
- // p[1] = py
- // p[2] = pz
- // Results for (nearly) straight tracks are meaningless !
- //----------------------------------------------------------------
- if (TMath::Abs(p[0])<=0) return kFALSE;
- if (TMath::Abs(p[1])> 0.999999) return kFALSE;
-
- Double_t pt=1./TMath::Abs(p[0]);
- Double_t cs=TMath::Cos(alpha), sn=TMath::Sin(alpha);
- Double_t r=TMath::Sqrt(1 - p[1]*p[1]);
- p[0]=pt*(r*cs - p[1]*sn); p[1]=pt*(p[1]*cs + r*sn); p[2]=pt*p[2];
-
+ if (!fIp) return kFALSE;
+ alpha=fIp->GetAlpha();
+ x=fIp->GetX();
+ for (Int_t i=0; i<5; i++) p[i]=fIp->GetParameter()[i];
return kTRUE;
}
-Bool_t Local2GlobalPosition(Double_t r[3],Double_t alpha) {
- //----------------------------------------------------------------
- // This function performs local->global transformation of the
- // track position.
- // When called, the arguments are:
- // r[0] = local x
- // r[1] = local y
- // r[2] = local z
- // alpha - rotation angle.
- // The result is returned as:
- // r[0] = global x
- // r[1] = global y
- // r[2] = global z
- //----------------------------------------------------------------
- Double_t cs=TMath::Cos(alpha), sn=TMath::Sin(alpha), x=r[0];
- r[0]=x*cs - r[1]*sn; r[1]=x*sn + r[1]*cs;
-
+Bool_t
+AliESDtrack::GetInnerExternalCovariance(Double_t cov[15]) const {
+ //---------------------------------------------------------------------
+ // This function returns external representation of the cov. matrix
+ // at the inner layer of TPC
+ //---------------------------------------------------------------------
+ if (!fIp) return kFALSE;
+ for (Int_t i=0; i<15; i++) cov[i]=fIp->GetCovariance()[i];
return kTRUE;
}
-Bool_t AliESDtrack::GetConstrainedPxPyPz(Double_t *p) const {
- //---------------------------------------------------------------------
- // This function returns the constrained global track momentum components
- // Results for (nearly) straight tracks are meaningless !
- //---------------------------------------------------------------------
- p[0]=fCp[4]; p[1]=fCp[2]; p[2]=fCp[3];
- return Local2GlobalMomentum(p,fCalpha);
-}
-
-Bool_t AliESDtrack::GetConstrainedXYZ(Double_t *r) const {
- //---------------------------------------------------------------------
- // This function returns the constrained global track position
- //---------------------------------------------------------------------
- r[0]=fCx; r[1]=fCp[0]; r[2]=fCp[1];
- return Local2GlobalPosition(r,fCalpha);
-}
-
-Bool_t AliESDtrack::GetPxPyPz(Double_t *p) const {
- //---------------------------------------------------------------------
- // This function returns the global track momentum components
- // Results for (nearly) straight tracks are meaningless !
- //---------------------------------------------------------------------
- p[0]=fRp[4]; p[1]=fRp[2]; p[2]=fRp[3];
- return Local2GlobalMomentum(p,fRalpha);
+void
+AliESDtrack::SetOuterParam(const AliExternalTrackParam *p, ULong_t flags) {
+ //
+ // This is a direct setter for the outer track parameters
+ //
+ SetStatus(flags);
+ if (fOp) delete fOp;
+ fOp=new AliExternalTrackParam(*p);
}
-Bool_t AliESDtrack::GetXYZ(Double_t *r) const {
- //---------------------------------------------------------------------
- // This function returns the global track position
- //---------------------------------------------------------------------
- r[0]=fRx; r[1]=fRp[0]; r[2]=fRp[1];
- return Local2GlobalPosition(r,fRalpha);
+void
+AliESDtrack::SetOuterHmpParam(const AliExternalTrackParam *p, ULong_t flags) {
+ //
+ // This is a direct setter for the outer track parameters
+ //
+ SetStatus(flags);
+ if (fHMPIDp) delete fHMPIDp;
+ fHMPIDp=new AliExternalTrackParam(*p);
}
-void AliESDtrack::GetCovariance(Double_t cv[21]) const {
- //---------------------------------------------------------------------
- // This function returns the global covariance matrix of the track params
- //
- // Cov(x,x) ... : cv[0]
- // Cov(y,x) ... : cv[1] cv[2]
- // Cov(z,x) ... : cv[3] cv[4] cv[5]
- // Cov(px,x)... : cv[6] cv[7] cv[8] cv[9]
- // Cov(py,x)... : cv[10] cv[11] cv[12] cv[13] cv[14]
- // Cov(pz,x)... : cv[15] cv[16] cv[17] cv[18] cv[19] cv[20]
- //
- // Results for (nearly) straight tracks are meaningless !
- //---------------------------------------------------------------------
- if (TMath::Abs(fRp[4])<=0) {
- for (Int_t i=0; i<21; i++) cv[i]=0.;
- return;
- }
- if (TMath::Abs(fRp[2]) > 0.999999) {
- for (Int_t i=0; i<21; i++) cv[i]=0.;
- return;
- }
- Double_t pt=1./TMath::Abs(fRp[4]);
- Double_t cs=TMath::Cos(fRalpha), sn=TMath::Sin(fRalpha);
- Double_t r=TMath::Sqrt(1-fRp[2]*fRp[2]);
-
- Double_t m00=-sn, m10=cs;
- Double_t m23=-pt*(sn + fRp[2]*cs/r), m43=-pt*pt*(r*cs - fRp[2]*sn);
- Double_t m24= pt*(cs - fRp[2]*sn/r), m44=-pt*pt*(r*sn + fRp[2]*cs);
- Double_t m35=pt, m45=-pt*pt*fRp[3];
-
- cv[0]=fRc[0]*m00*m00;
- cv[1]=fRc[0]*m00*m10;
- cv[2]=fRc[0]*m10*m10;
- cv[3]=fRc[1]*m00;
- cv[4]=fRc[1]*m10;
- cv[5]=fRc[2];
- cv[6]=m00*(fRc[3]*m23+fRc[10]*m43);
- cv[7]=m10*(fRc[3]*m23+fRc[10]*m43);
- cv[8]=fRc[4]*m23+fRc[11]*m43;
- cv[9]=m23*(fRc[5]*m23+fRc[12]*m43)+m43*(fRc[12]*m23+fRc[14]*m43);
- cv[10]=m00*(fRc[3]*m24+fRc[10]*m44);
- cv[11]=m10*(fRc[3]*m24+fRc[10]*m44);
- cv[12]=fRc[4]*m24+fRc[11]*m44;
- cv[13]=m23*(fRc[5]*m24+fRc[12]*m44)+m43*(fRc[12]*m24+fRc[14]*m44);
- cv[14]=m24*(fRc[5]*m24+fRc[12]*m44)+m44*(fRc[12]*m24+fRc[14]*m44);
- cv[15]=m00*(fRc[6]*m35+fRc[10]*m45);
- cv[16]=m10*(fRc[6]*m35+fRc[10]*m45);
- cv[17]=fRc[7]*m35+fRc[11]*m45;
- cv[18]=m23*(fRc[8]*m35+fRc[12]*m45)+m43*(fRc[13]*m35+fRc[14]*m45);
- cv[19]=m24*(fRc[8]*m35+fRc[12]*m45)+m44*(fRc[13]*m35+fRc[14]*m45);
- cv[20]=m35*(fRc[9]*m35+fRc[13]*m45)+m45*(fRc[13]*m35+fRc[14]*m45);
-}
-
-Bool_t AliESDtrack::GetInnerPxPyPz(Double_t *p) const {
+Bool_t
+AliESDtrack::GetOuterExternalParameters
+ (Double_t &alpha, Double_t &x, Double_t p[5]) const {
//---------------------------------------------------------------------
- // This function returns the global track momentum components
- // af the entrance of the TPC
+ // This function returns external representation of the track parameters
+ // at the inner layer of TRD
//---------------------------------------------------------------------
- p[0]=fIp[4]; p[1]=fIp[2]; p[2]=fIp[3];
- return Local2GlobalMomentum(p,fIalpha);
+ if (!fOp) return kFALSE;
+ alpha=fOp->GetAlpha();
+ x=fOp->GetX();
+ for (Int_t i=0; i<5; i++) p[i]=fOp->GetParameter()[i];
+ return kTRUE;
}
-Bool_t AliESDtrack::GetInnerXYZ(Double_t *r) const {
+Bool_t
+AliESDtrack::GetOuterHmpExternalParameters
+ (Double_t &alpha, Double_t &x, Double_t p[5]) const {
//---------------------------------------------------------------------
- // This function returns the global track position
- // af the entrance of the TPC
+ // This function returns external representation of the track parameters
+ // at the inner layer of TRD
//---------------------------------------------------------------------
- if (fIx==0) return kFALSE;
- r[0]=fIx; r[1]=fIp[0]; r[2]=fIp[1];
- return Local2GlobalPosition(r,fIalpha);
+ if (!fHMPIDp) return kFALSE;
+ alpha=fHMPIDp->GetAlpha();
+ x=fHMPIDp->GetX();
+ for (Int_t i=0; i<5; i++) p[i]=fHMPIDp->GetParameter()[i];
+ return kTRUE;
}
-void AliESDtrack::GetInnerExternalParameters(Double_t &x, Double_t p[5]) const
-{
- //skowron
+Bool_t
+AliESDtrack::GetOuterExternalCovariance(Double_t cov[15]) const {
//---------------------------------------------------------------------
- // This function returns external representation of the track parameters at Inner Layer of TPC
- //---------------------------------------------------------------------
- x=fIx;
- for (Int_t i=0; i<5; i++) p[i]=fIp[i];
+ // This function returns external representation of the cov. matrix
+ // at the inner layer of TRD
+ //---------------------------------------------------------------------
+ if (!fOp) return kFALSE;
+ for (Int_t i=0; i<15; i++) cov[i]=fOp->GetCovariance()[i];
+ return kTRUE;
}
-void AliESDtrack::GetInnerExternalCovariance(Double_t cov[15]) const
-{
- //skowron
+
+Bool_t
+AliESDtrack::GetOuterHmpExternalCovariance(Double_t cov[15]) const {
//---------------------------------------------------------------------
- // This function returns external representation of the cov. matrix at Inner Layer of TPC
+ // This function returns external representation of the cov. matrix
+ // at the inner layer of TRD
//---------------------------------------------------------------------
- for (Int_t i=0; i<15; i++) cov[i]=fIc[i];
-
+ if (!fHMPIDp) return kFALSE;
+ for (Int_t i=0; i<15; i++) cov[i]=fHMPIDp->GetCovariance()[i];
+ return kTRUE;
}
-void AliESDtrack::GetTRDExternalParameters(Double_t &x, Double_t&alpha, Double_t p[5], Double_t cov[15]) const
+Int_t AliESDtrack::GetNcls(Int_t idet) const
{
+ // Get number of clusters by subdetector index
//
- //this function returns TRD parameters
- //
- x=fTx;
- alpha = fTalpha;
- for (Int_t i=0; i<5; i++) p[i]=fTp[i];
- for (Int_t i=0; i<15; i++) cov[i]=fTc[i];
-}
-
-Bool_t AliESDtrack::GetPxPyPzAt(Double_t x,Double_t *p) const {
- //---------------------------------------------------------------------
- // This function returns the global track momentum components
- // at the position "x" using the helix track approximation
- //---------------------------------------------------------------------
- p[0]=fRp[4];
- p[1]=fRp[2]+(x-fRx)*fRp[4]/AliKalmanTrack::GetConvConst();
- p[2]=fRp[3];
- return Local2GlobalMomentum(p,fRalpha);
+ Int_t ncls = 0;
+ switch(idet){
+ case 0:
+ ncls = fITSncls;
+ break;
+ case 1:
+ ncls = fTPCncls;
+ break;
+ case 2:
+ ncls = fTRDncls;
+ break;
+ case 3:
+ if (fTOFindex != -1)
+ ncls = 1;
+ break;
+ case 4: //PHOS
+ break;
+ case 5: //HMPID
+ if ((fHMPIDcluIdx >= 0) && (fHMPIDcluIdx < 7000000)) {
+ if ((fHMPIDcluIdx%1000000 != 9999) && (fHMPIDcluIdx%1000000 != 99999)) {
+ ncls = 1;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ return ncls;
}
-Bool_t AliESDtrack::GetXYZAt(Double_t x, Double_t *r) const {
- //---------------------------------------------------------------------
- // This function returns the global track position
- // af the radius "x" using the helix track approximation
- //---------------------------------------------------------------------
- Double_t dx=x-fRx;
- Double_t f1=fRp[2], f2=f1 + dx*fRp[4]/AliKalmanTrack::GetConvConst();
-
- if (TMath::Abs(f2) >= 0.9999) return kFALSE;
-
- Double_t r1=TMath::Sqrt(1.- f1*f1), r2=TMath::Sqrt(1.- f2*f2);
- r[0] = x;
- r[1] = fRp[0] + dx*(f1+f2)/(r1+r2);
- r[2] = fRp[1] + dx*(f1+f2)/(f1*r2 + f2*r1)*fRp[3];
- return Local2GlobalPosition(r,fRalpha);
+Int_t AliESDtrack::GetClusters(Int_t idet, Int_t *idx) const
+{
+ // Get cluster index array by subdetector index
+ //
+ Int_t ncls = 0;
+ switch(idet){
+ case 0:
+ ncls = GetITSclusters(idx);
+ break;
+ case 1:
+ ncls = GetTPCclusters(idx);
+ break;
+ case 2:
+ ncls = GetTRDclusters(idx);
+ break;
+ case 3:
+ if (fTOFindex != -1) {
+ idx[0] = fTOFindex;
+ ncls = 1;
+ }
+ break;
+ case 4: //PHOS
+ break;
+ case 5:
+ if ((fHMPIDcluIdx >= 0) && (fHMPIDcluIdx < 7000000)) {
+ if ((fHMPIDcluIdx%1000000 != 9999) && (fHMPIDcluIdx%1000000 != 99999)) {
+ idx[0] = GetHMPIDcluIdx();
+ ncls = 1;
+ }
+ }
+ break;
+ case 6: //EMCAL
+ break;
+ default:
+ break;
+ }
+ return ncls;
}
//_______________________________________________________________________
//_______________________________________________________________________
void AliESDtrack::SetITSpid(const Double_t *p) {
// Sets values for the probability of each particle type (in ITS)
- for (Int_t i=0; i<AliPID::kSPECIES; i++) fITSr[i]=p[i];
+ SetPIDValues(fITSr,p,AliPID::kSPECIES);
SetStatus(AliESDtrack::kITSpid);
}
-void AliESDtrack::SetITSChi2MIP(const Float_t *chi2mip){
- for (Int_t i=0; i<12; i++) fITSchi2MIP[i]=chi2mip[i];
-}
//_______________________________________________________________________
void AliESDtrack::GetITSpid(Double_t *p) const {
// Gets the probability of each particle type (in ITS)
}
//_______________________________________________________________________
-Int_t AliESDtrack::GetITSclusters(UInt_t *idx) const {
+Char_t AliESDtrack::GetITSclusters(Int_t *idx) const {
//---------------------------------------------------------------------
// This function returns indices of the assgined ITS clusters
//---------------------------------------------------------------------
- for (Int_t i=0; i<fITSncls; i++) idx[i]=fITSindex[i];
+ if (idx!=0) {
+ Int_t *index=fFriendTrack->GetITSindices();
+ for (Int_t i=0; i<AliESDfriendTrack::kMaxITScluster; i++) {
+ if ( (i>=fITSncls) && (i<6) ) idx[i]=-1;
+ else idx[i]=index[i];
+ }
+ }
return fITSncls;
}
//_______________________________________________________________________
-Int_t AliESDtrack::GetTPCclusters(Int_t *idx) const {
+Bool_t AliESDtrack::GetITSModuleIndexInfo(Int_t ilayer,Int_t &idet,Int_t &status,
+ Float_t &xloc,Float_t &zloc) const {
+ //----------------------------------------------------------------------
+ // This function encodes in the module number also the status of cluster association
+ // "status" can have the following values:
+ // 1 "found" (cluster is associated),
+ // 2 "dead" (module is dead from OCDB),
+ // 3 "skipped" (module or layer forced to be skipped),
+ // 4 "outinz" (track out of z acceptance),
+ // 5 "nocls" (no clusters in the road),
+ // 6 "norefit" (cluster rejected during refit),
+ // 7 "deadzspd" (holes in z in SPD)
+ // Also given are the coordinates of the crossing point of track and module
+ // (in the local module ref. system)
+ // WARNING: THIS METHOD HAS TO BE SYNCHRONIZED WITH AliITStrackV2::GetModuleIndexInfo()!
+ //----------------------------------------------------------------------
+
+ if(fITSModule[ilayer]==-1) {
+ idet = -1;
+ status=0;
+ xloc=-99.; zloc=-99.;
+ return kFALSE;
+ }
+
+ Int_t module = fITSModule[ilayer];
+
+ idet = Int_t(module/1000000);
+
+ module -= idet*1000000;
+
+ status = Int_t(module/100000);
+
+ module -= status*100000;
+
+ Int_t signs = Int_t(module/10000);
+
+ module-=signs*10000;
+
+ Int_t xInt = Int_t(module/100);
+ module -= xInt*100;
+
+ Int_t zInt = module;
+
+ if(signs==1) { xInt*=1; zInt*=1; }
+ if(signs==2) { xInt*=1; zInt*=-1; }
+ if(signs==3) { xInt*=-1; zInt*=1; }
+ if(signs==4) { xInt*=-1; zInt*=-1; }
+
+ xloc = 0.1*(Float_t)xInt;
+ zloc = 0.1*(Float_t)zInt;
+
+ if(status==4) idet = -1;
+
+ return kTRUE;
+}
+
+//_______________________________________________________________________
+UShort_t AliESDtrack::GetTPCclusters(Int_t *idx) const {
//---------------------------------------------------------------------
// This function returns indices of the assgined ITS clusters
//---------------------------------------------------------------------
- if (idx!=0)
- for (Int_t i=0; i<180; i++) idx[i]=fTPCindex[i]; // MI I prefer some constant
+ if (idx!=0) {
+ Int_t *index=fFriendTrack->GetTPCindices();
+ for (Int_t i=0; i<AliESDfriendTrack::kMaxTPCcluster; i++) idx[i]=index[i];
+ }
return fTPCncls;
}
+Double_t AliESDtrack::GetTPCdensity(Int_t row0, Int_t row1) const{
+ //
+ // GetDensity of the clusters on given region between row0 and row1
+ // Dead zone effect takin into acoount
+ //
+ Int_t good = 0;
+ Int_t found = 0;
+ //
+ Int_t *index=fFriendTrack->GetTPCindices();
+ for (Int_t i=row0;i<=row1;i++){
+ Int_t idx = index[i];
+ if (idx!=-1) good++; // track outside of dead zone
+ if (idx>0) found++;
+ }
+ Float_t density=0.5;
+ if (good>(row1-row0)*0.5) density = Float_t(found)/Float_t(good);
+ return density;
+}
+
//_______________________________________________________________________
void AliESDtrack::SetTPCpid(const Double_t *p) {
// Sets values for the probability of each particle type (in TPC)
- for (Int_t i=0; i<AliPID::kSPECIES; i++) fTPCr[i]=p[i];
+ SetPIDValues(fTPCr,p,AliPID::kSPECIES);
SetStatus(AliESDtrack::kTPCpid);
}
}
//_______________________________________________________________________
-Int_t AliESDtrack::GetTRDclusters(UInt_t *idx) const {
+UChar_t AliESDtrack::GetTRDclusters(Int_t *idx) const {
//---------------------------------------------------------------------
// This function returns indices of the assgined TRD clusters
//---------------------------------------------------------------------
- if (idx!=0)
- for (Int_t i=0; i<130; i++) idx[i]=fTRDindex[i]; // MI I prefer some constant
+ if (idx!=0) {
+ Int_t *index=fFriendTrack->GetTRDindices();
+ for (Int_t i=0; i<AliESDfriendTrack::kMaxTRDcluster; i++) idx[i]=index[i];
+ }
return fTRDncls;
}
+//_______________________________________________________________________
+UChar_t AliESDtrack::GetTRDtracklets(Int_t *idx) const {
+//
+// This function returns the number of TRD tracklets used in tracking
+// and it fills the indices of these tracklets in the array "idx" as they
+// are registered in the TRD track list.
+//
+// Caution :
+// 1. The idx array has to be allocated with a size >= AliESDtrack::kTRDnPlanes
+// 2. The idx array store not only the index but also the layer of the tracklet.
+// Therefore tracks with TRD gaps contain default values for indices [-1]
+
+ if (!idx) return GetTRDntracklets();
+ Int_t *index=fFriendTrack->GetTRDindices(), n(0);
+ for (Int_t i=0; i<kTRDnPlanes; i++){
+ if(index[i]>=0) n++;
+ idx[i]=index[i];
+ }
+ return n;
+}
+
//_______________________________________________________________________
void AliESDtrack::SetTRDpid(const Double_t *p) {
// Sets values for the probability of each particle type (in TRD)
- for (Int_t i=0; i<AliPID::kSPECIES; i++) fTRDr[i]=p[i];
+ SetPIDValues(fTRDr,p,AliPID::kSPECIES);
SetStatus(AliESDtrack::kTRDpid);
}
fTRDr[iSpecies] = p;
}
-Float_t AliESDtrack::GetTRDpid(Int_t iSpecies) const
+Double_t AliESDtrack::GetTRDpid(Int_t iSpecies) const
{
// Returns the probability of particle type iSpecies (in TRD)
return fTRDr[iSpecies];
}
+//____________________________________________________
+Int_t AliESDtrack::GetNumberOfTRDslices() const
+{
+ // built in backward compatibility
+ Int_t idx = fTRDnSlices - (kTRDnPlanes<<1);
+ return idx<18 ? fTRDnSlices/kTRDnPlanes : idx/kTRDnPlanes;
+}
+
+//____________________________________________________
+Double_t AliESDtrack::GetTRDmomentum(Int_t plane, Double_t *sp) const
+{
+//Returns momentum estimation and optional its error (sp)
+// in TRD layer "plane".
+
+ if (!fTRDnSlices) {
+ AliError("No TRD info allocated for this track !");
+ return -1.;
+ }
+ if ((plane<0) || (plane>=kTRDnPlanes)) {
+ AliError("Info for TRD plane not available!");
+ return -1.;
+ }
+
+ Int_t idx = fTRDnSlices-(kTRDnPlanes<<1)+plane;
+ // Protection for backward compatibility
+ if(idx<(GetNumberOfTRDslices()*kTRDnPlanes)) return -1.;
+
+ if(sp) (*sp) = fTRDslices[idx+kTRDnPlanes];
+ return fTRDslices[idx];
+}
+
+//____________________________________________________
+Double_t AliESDtrack::GetTRDslice(Int_t plane, Int_t slice) const {
+ //Gets the charge from the slice of the plane
+
+ if(!fTRDslices) {
+ //AliError("No TRD slices allocated for this track !");
+ return -1.;
+ }
+ if ((plane<0) || (plane>=kTRDnPlanes)) {
+ AliError("Info for TRD plane not available !");
+ return -1.;
+ }
+ Int_t ns=GetNumberOfTRDslices();
+ if ((slice<-1) || (slice>=ns)) {
+ //AliError("Wrong TRD slice !");
+ return -1.;
+ }
+
+ if(slice>=0) return fTRDslices[plane*ns + slice];
+
+ // return average of the dEdx measurements
+ Double_t q=0.; Double32_t *s = &fTRDslices[plane*ns];
+ for (Int_t i=0; i<ns; i++, s++) if((*s)>0.) q+=(*s);
+ return q/ns;
+}
+
+//____________________________________________________
+void AliESDtrack::SetNumberOfTRDslices(Int_t n) {
+ //Sets the number of slices used for PID
+ if (fTRDnSlices) return;
+
+ fTRDnSlices=n;
+ fTRDslices=new Double32_t[fTRDnSlices];
+
+ // set-up correctly the allocated memory
+ memset(fTRDslices, 0, n*sizeof(Double32_t));
+ for (Int_t i=GetNumberOfTRDslices(); i--;) fTRDslices[i]=-1.;
+}
+
+//____________________________________________________
+void AliESDtrack::SetTRDslice(Double_t q, Int_t plane, Int_t slice) {
+ //Sets the charge q in the slice of the plane
+ if(!fTRDslices) {
+ AliError("No TRD slices allocated for this track !");
+ return;
+ }
+ if ((plane<0) || (plane>=kTRDnPlanes)) {
+ AliError("Info for TRD plane not allocated !");
+ return;
+ }
+ Int_t ns=GetNumberOfTRDslices();
+ if ((slice<0) || (slice>=ns)) {
+ AliError("Wrong TRD slice !");
+ return;
+ }
+ Int_t n=plane*ns + slice;
+ fTRDslices[n]=q;
+}
+
+
+//____________________________________________________
+void AliESDtrack::SetTRDmomentum(Double_t p, Int_t plane, Double_t *sp)
+{
+ if(!fTRDslices) {
+ AliError("No TRD slices allocated for this track !");
+ return;
+ }
+ if ((plane<0) || (plane>=kTRDnPlanes)) {
+ AliError("Info for TRD plane not allocated !");
+ return;
+ }
+
+ Int_t idx = fTRDnSlices-(kTRDnPlanes<<1)+plane;
+ // Protection for backward compatibility
+ if(idx<GetNumberOfTRDslices()*kTRDnPlanes) return;
+
+ if(sp) fTRDslices[idx+kTRDnPlanes] = (*sp);
+ fTRDslices[idx] = p;
+}
+
+
//_______________________________________________________________________
void AliESDtrack::SetTOFpid(const Double_t *p) {
// Sets the probability of each particle type (in TOF)
- for (Int_t i=0; i<AliPID::kSPECIES; i++) fTOFr[i]=p[i];
+ SetPIDValues(fTOFr,p,AliPID::kSPECIES);
SetStatus(AliESDtrack::kTOFpid);
}
//_______________________________________________________________________
-void AliESDtrack::SetPHOSpid(const Double_t *p) {
- // Sets the probability of each particle type (in PHOS)
- for (Int_t i=0; i<AliPID::kSPECIESN; i++) fPHOSr[i]=p[i];
- SetStatus(AliESDtrack::kPHOSpid);
+void AliESDtrack::SetHMPIDpid(const Double_t *p) {
+ // Sets the probability of each particle type (in HMPID)
+ SetPIDValues(fHMPIDr,p,AliPID::kSPECIES);
+ SetStatus(AliESDtrack::kHMPIDpid);
}
//_______________________________________________________________________
-void AliESDtrack::GetPHOSpid(Double_t *p) const {
- // Gets probabilities of each particle type (in PHOS)
- for (Int_t i=0; i<AliPID::kSPECIESN; i++) p[i]=fPHOSr[i];
+void AliESDtrack::GetHMPIDpid(Double_t *p) const {
+ // Gets probabilities of each particle type (in HMPID)
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fHMPIDr[i];
}
+
+
//_______________________________________________________________________
-void AliESDtrack::SetEMCALpid(const Double_t *p) {
- // Sets the probability of each particle type (in EMCAL)
- for (Int_t i=0; i<AliPID::kSPECIESN; i++) fEMCALr[i]=p[i];
- SetStatus(AliESDtrack::kEMCALpid);
+void AliESDtrack::SetESDpid(const Double_t *p) {
+ // Sets the probability of each particle type for the ESD track
+ SetPIDValues(fR,p,AliPID::kSPECIES);
+ SetStatus(AliESDtrack::kESDpid);
}
//_______________________________________________________________________
-void AliESDtrack::GetEMCALpid(Double_t *p) const {
- // Gets probabilities of each particle type (in EMCAL)
- for (Int_t i=0; i<AliPID::kSPECIESN; i++) p[i]=fEMCALr[i];
+void AliESDtrack::GetESDpid(Double_t *p) const {
+ // Gets probability of each particle type for the ESD track
+ for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fR[i];
}
//_______________________________________________________________________
-void AliESDtrack::SetRICHpid(const Double_t *p) {
- // Sets the probability of each particle type (in RICH)
- for (Int_t i=0; i<AliPID::kSPECIES; i++) fRICHr[i]=p[i];
- SetStatus(AliESDtrack::kRICHpid);
+Bool_t AliESDtrack::RelateToVertexTPC(const AliESDVertex *vtx,
+Double_t b, Double_t maxd, AliExternalTrackParam *cParam) {
+ //
+ // Try to relate the TPC-only track parameters to the vertex "vtx",
+ // if the (rough) transverse impact parameter is not bigger then "maxd".
+ // Magnetic field is "b" (kG).
+ //
+ // a) The TPC-only paramters are extapolated to the DCA to the vertex.
+ // b) The impact parameters and their covariance matrix are calculated.
+ // c) An attempt to constrain the TPC-only params to the vertex is done.
+ // The constrained params are returned via "cParam".
+ //
+ // In the case of success, the returned value is kTRUE
+ // otherwise, it's kFALSE)
+ //
+
+ if (!fTPCInner) return kFALSE;
+ if (!vtx) return kFALSE;
+
+ Double_t dz[2],cov[3];
+ if (!fTPCInner->PropagateToDCA(vtx, b, maxd, dz, cov)) return kFALSE;
+
+ fdTPC = dz[0];
+ fzTPC = dz[1];
+ fCddTPC = cov[0];
+ fCdzTPC = cov[1];
+ fCzzTPC = cov[2];
+
+ Double_t covar[6]; vtx->GetCovMatrix(covar);
+ Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]};
+ Double_t c[3]={covar[2],0.,covar[5]};
+
+ Double_t chi2=GetPredictedChi2(p,c);
+ if (chi2>kVeryBig) return kFALSE;
+
+ fCchi2TPC=chi2;
+
+ if (!cParam) return kTRUE;
+
+ *cParam = *fTPCInner;
+ if (!cParam->Update(p,c)) return kFALSE;
+
+ return kTRUE;
}
//_______________________________________________________________________
-void AliESDtrack::GetRICHpid(Double_t *p) const {
- // Gets probabilities of each particle type (in RICH)
- for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fRICHr[i];
-}
+Bool_t AliESDtrack::RelateToVertexTPCBxByBz(const AliESDVertex *vtx,
+Double_t b[3], Double_t maxd, AliExternalTrackParam *cParam) {
+ //
+ // Try to relate the TPC-only track parameters to the vertex "vtx",
+ // if the (rough) transverse impact parameter is not bigger then "maxd".
+ //
+ // All three components of the magnetic field ,"b[3]" (kG),
+ // are taken into account.
+ //
+ // a) The TPC-only paramters are extapolated to the DCA to the vertex.
+ // b) The impact parameters and their covariance matrix are calculated.
+ // c) An attempt to constrain the TPC-only params to the vertex is done.
+ // The constrained params are returned via "cParam".
+ //
+ // In the case of success, the returned value is kTRUE
+ // otherwise, it's kFALSE)
+ //
+
+ if (!fTPCInner) return kFALSE;
+ if (!vtx) return kFALSE;
+
+ Double_t dz[2],cov[3];
+ if (!fTPCInner->PropagateToDCABxByBz(vtx, b, maxd, dz, cov)) return kFALSE;
+
+ fdTPC = dz[0];
+ fzTPC = dz[1];
+ fCddTPC = cov[0];
+ fCdzTPC = cov[1];
+ fCzzTPC = cov[2];
+
+ Double_t covar[6]; vtx->GetCovMatrix(covar);
+ Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]};
+ Double_t c[3]={covar[2],0.,covar[5]};
+
+ Double_t chi2=GetPredictedChi2(p,c);
+ if (chi2>kVeryBig) return kFALSE;
+
+ fCchi2TPC=chi2;
+ if (!cParam) return kTRUE;
+ *cParam = *fTPCInner;
+ if (!cParam->Update(p,c)) return kFALSE;
+
+ return kTRUE;
+}
//_______________________________________________________________________
-void AliESDtrack::SetESDpid(const Double_t *p) {
- // Sets the probability of each particle type for the ESD track
- for (Int_t i=0; i<AliPID::kSPECIES; i++) fR[i]=p[i];
- SetStatus(AliESDtrack::kESDpid);
+Bool_t AliESDtrack::RelateToVertex(const AliESDVertex *vtx,
+Double_t b, Double_t maxd, AliExternalTrackParam *cParam) {
+ //
+ // Try to relate this track to the vertex "vtx",
+ // if the (rough) transverse impact parameter is not bigger then "maxd".
+ // Magnetic field is "b" (kG).
+ //
+ // a) The track gets extapolated to the DCA to the vertex.
+ // b) The impact parameters and their covariance matrix are calculated.
+ // c) An attempt to constrain this track to the vertex is done.
+ // The constrained params are returned via "cParam".
+ //
+ // In the case of success, the returned value is kTRUE
+ // (otherwise, it's kFALSE)
+ //
+
+ if (!vtx) return kFALSE;
+
+ Double_t dz[2],cov[3];
+ if (!PropagateToDCA(vtx, b, maxd, dz, cov)) return kFALSE;
+
+ fD = dz[0];
+ fZ = dz[1];
+ fCdd = cov[0];
+ fCdz = cov[1];
+ fCzz = cov[2];
+
+ Double_t covar[6]; vtx->GetCovMatrix(covar);
+ Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]};
+ Double_t c[3]={covar[2],0.,covar[5]};
+
+ Double_t chi2=GetPredictedChi2(p,c);
+ if (chi2>kVeryBig) return kFALSE;
+
+ fCchi2=chi2;
+
+
+ //--- Could now these lines be removed ? ---
+ delete fCp;
+ fCp=new AliExternalTrackParam(*this);
+
+ if (!fCp->Update(p,c)) {delete fCp; fCp=0; return kFALSE;}
+ //----------------------------------------
+
+ fVertexID = vtx->GetID();
+
+ if (!cParam) return kTRUE;
+
+ *cParam = *this;
+ if (!cParam->Update(p,c)) return kFALSE;
+
+ return kTRUE;
}
//_______________________________________________________________________
-void AliESDtrack::GetESDpid(Double_t *p) const {
- // Gets probability of each particle type for the ESD track
- for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fR[i];
+Bool_t AliESDtrack::RelateToVertexBxByBz(const AliESDVertex *vtx,
+Double_t b[3], Double_t maxd, AliExternalTrackParam *cParam) {
+ //
+ // Try to relate this track to the vertex "vtx",
+ // if the (rough) transverse impact parameter is not bigger then "maxd".
+ // Magnetic field is "b" (kG).
+ //
+ // a) The track gets extapolated to the DCA to the vertex.
+ // b) The impact parameters and their covariance matrix are calculated.
+ // c) An attempt to constrain this track to the vertex is done.
+ // The constrained params are returned via "cParam".
+ //
+ // In the case of success, the returned value is kTRUE
+ // (otherwise, it's kFALSE)
+ //
+
+ if (!vtx) return kFALSE;
+
+ Double_t dz[2],cov[3];
+ if (!PropagateToDCABxByBz(vtx, b, maxd, dz, cov)) return kFALSE;
+
+ fD = dz[0];
+ fZ = dz[1];
+ fCdd = cov[0];
+ fCdz = cov[1];
+ fCzz = cov[2];
+
+ Double_t covar[6]; vtx->GetCovMatrix(covar);
+ Double_t p[2]={GetParameter()[0]-dz[0],GetParameter()[1]-dz[1]};
+ Double_t c[3]={covar[2],0.,covar[5]};
+
+ Double_t chi2=GetPredictedChi2(p,c);
+ if (chi2>kVeryBig) return kFALSE;
+
+ fCchi2=chi2;
+
+
+ //--- Could now these lines be removed ? ---
+ delete fCp;
+ fCp=new AliExternalTrackParam(*this);
+
+ if (!fCp->Update(p,c)) {delete fCp; fCp=0; return kFALSE;}
+ //----------------------------------------
+
+ fVertexID = vtx->GetID();
+
+ if (!cParam) return kTRUE;
+
+ *cParam = *this;
+ if (!cParam->Update(p,c)) return kFALSE;
+
+ return kTRUE;
}
//_______________________________________________________________________
void AliESDtrack::Print(Option_t *) const {
// Prints info on the track
-
+ AliExternalTrackParam::Print();
printf("ESD track info\n") ;
Double_t p[AliPID::kSPECIESN] ;
Int_t index = 0 ;
GetTRDpid(p) ;
for(index = 0 ; index < AliPID::kSPECIES; index++)
printf("%f, ", p[index]) ;
- printf("\n signal = %f\n", GetTRDsignal()) ;
+ printf("\n signal = %f\n", GetTRDsignal()) ;
}
if( IsOn(kTOFpid) ){
printf("From TOF: ") ;
printf("%f, ", p[index]) ;
printf("\n signal = %f\n", GetTOFsignal()) ;
}
- if( IsOn(kRICHpid) ){
- printf("From TOF: ") ;
- GetRICHpid(p) ;
+ if( IsOn(kHMPIDpid) ){
+ printf("From HMPID: ") ;
+ GetHMPIDpid(p) ;
for(index = 0 ; index < AliPID::kSPECIES; index++)
printf("%f, ", p[index]) ;
- printf("\n signal = %f\n", GetRICHsignal()) ;
+ printf("\n signal = %f\n", GetHMPIDsignal()) ;
}
- if( IsOn(kPHOSpid) ){
- printf("From PHOS: ") ;
- GetPHOSpid(p) ;
- for(index = 0 ; index < AliPID::kSPECIESN; index++)
- printf("%f, ", p[index]) ;
- printf("\n signal = %f\n", GetPHOSsignal()) ;
+}
+
+
+//
+// Draw functionality
+// Origin: Marian Ivanov, Marian.Ivanov@cern.ch
+//
+void AliESDtrack::FillPolymarker(TPolyMarker3D *pol, Float_t magF, Float_t minR, Float_t maxR, Float_t stepR){
+ //
+ // Fill points in the polymarker
+ //
+ TObjArray arrayRef;
+ arrayRef.AddLast(new AliExternalTrackParam(*this));
+ if (fIp) arrayRef.AddLast(new AliExternalTrackParam(*fIp));
+ if (fOp) arrayRef.AddLast(new AliExternalTrackParam(*fOp));
+ if (fHMPIDp) arrayRef.AddLast(new AliExternalTrackParam(*fHMPIDp));
+ //
+ Double_t mpos[3]={0,0,0};
+ Int_t entries=arrayRef.GetEntries();
+ for (Int_t i=0;i<entries;i++){
+ Double_t pos[3];
+ ((AliExternalTrackParam*)arrayRef.At(i))->GetXYZ(pos);
+ mpos[0]+=pos[0]/entries;
+ mpos[1]+=pos[1]/entries;
+ mpos[2]+=pos[2]/entries;
}
- if( IsOn(kEMCALpid) ){
- printf("From EMCAL: ") ;
- GetEMCALpid(p) ;
- for(index = 0 ; index < AliPID::kSPECIESN; index++)
- printf("%f, ", p[index]) ;
- printf("\n signal = %f\n", GetEMCALsignal()) ;
+ // Rotate to the mean position
+ //
+ Float_t fi= TMath::ATan2(mpos[1],mpos[0]);
+ for (Int_t i=0;i<entries;i++){
+ Bool_t res = ((AliExternalTrackParam*)arrayRef.At(i))->Rotate(fi);
+ if (!res) delete arrayRef.RemoveAt(i);
}
-}
+ Int_t counter=0;
+ for (Double_t r=minR; r<maxR; r+=stepR){
+ Double_t sweight=0;
+ Double_t mlpos[3]={0,0,0};
+ for (Int_t i=0;i<entries;i++){
+ Double_t point[3]={0,0,0};
+ AliExternalTrackParam *param = ((AliExternalTrackParam*)arrayRef.At(i));
+ if (!param) continue;
+ if (param->GetXYZAt(r,magF,point)){
+ Double_t weight = 1./(10.+(r-param->GetX())*(r-param->GetX()));
+ sweight+=weight;
+ mlpos[0]+=point[0]*weight;
+ mlpos[1]+=point[1]*weight;
+ mlpos[2]+=point[2]*weight;
+ }
+ }
+ if (sweight>0){
+ mlpos[0]/=sweight;
+ mlpos[1]/=sweight;
+ mlpos[2]/=sweight;
+ pol->SetPoint(counter,mlpos[0],mlpos[1], mlpos[2]);
+ printf("xyz\t%f\t%f\t%f\n",mlpos[0], mlpos[1],mlpos[2]);
+ counter++;
+ }
+ }
+}
+
+//_______________________________________________________________________
+void AliESDtrack::SetITSdEdxSamples(const Double_t s[4]) {
+ //
+ // Store the dE/dx samples measured by the two SSD and two SDD layers.
+ // These samples are corrected for the track segment length.
+ //
+ for (Int_t i=0; i<4; i++) fITSdEdxSamples[i]=s[i];
+}
+
+//_______________________________________________________________________
+void AliESDtrack::GetITSdEdxSamples(Double_t *s) const {
+ //
+ // Get the dE/dx samples measured by the two SSD and two SDD layers.
+ // These samples are corrected for the track segment length.
+ //
+ for (Int_t i=0; i<4; i++) s[i]=fITSdEdxSamples[i];
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff