// 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 "AliESDVertex.h"
#include "AliESDtrack.h"
#include "AliKalmanTrack.h"
+#include "AliVTrack.h"
#include "AliLog.h"
#include "AliTrackPointArray.h"
+#include "TPolyMarker3D.h"
ClassImp(AliESDtrack)
-void SetPIDValues(Float_t * dest, const Double_t * src, Int_t n) {
+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.
//_______________________________________________________________________
AliESDtrack::AliESDtrack() :
AliExternalTrackParam(),
+ fCp(0),
+ fIp(0),
+ fTPCInner(0),
+ fOp(0),
+ fFriendTrack(new AliESDfriendTrack()),
+ fTPCClusterMap(159),//number of padrows
+ fTPCSharedMap(159),//number of padrows
fFlags(0),
- fLabel(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),
- fStopVertex(0),
- fCp(0),
- fCchi2(1e10),
- fIp(0),
- fOp(0),
+ fCchi2(0),
fITSchi2(0),
- fITSncls(0),
- fITSClusterMap(0),
- fITSsignal(0),
- fITSLabel(0),
fTPCchi2(0),
- fTPCncls(0),
- fTPCnclsF(0),
- fTPCClusterMap(159),//number of padrows
+ fTRDchi2(0),
+ fTOFchi2(0),
+ fHMPIDchi2(0),
+ fGlobalChi2(0),
+ fITSsignal(0),
fTPCsignal(0),
- fTPCsignalN(0),
fTPCsignalS(0),
- fTPCLabel(0),
- fTRDchi2(0),
- fTRDncls(0),
- fTRDncls0(0),
fTRDsignal(0),
- fTRDLabel(0),
fTRDQuality(0),
fTRDBudget(0),
- fTOFchi2(0),
- fTOFindex(0),
- fTOFCalChannel(-1),
- fTOFsignal(-1),
+ fTOFsignal(0),
fTOFsignalToT(0),
fTOFsignalRaw(0),
fTOFsignalDz(0),
- fHMPIDchi2(1e10),
- fHMPIDqn(-1),
- fHMPIDcluIdx(-1),
- fHMPIDsignal(-1),
- fHMPIDtrkTheta(-1),
- fHMPIDtrkPhi(-1),
- fHMPIDtrkX(-1),
- fHMPIDtrkY(-1),
- fHMPIDmipX(-1),
- fHMPIDmipY(-1),
- fEMCALindex(kEMCALNoMatch),
- fFriendTrack(new AliESDfriendTrack())
+ fHMPIDtrkX(0),
+ fHMPIDtrkY(0),
+ fHMPIDmipX(0),
+ fHMPIDmipY(0),
+ fTPCncls(0),
+ fTPCnclsF(0),
+ fTPCsignalN(0),
+ fITSncls(0),
+ fITSClusterMap(0),
+ fTRDncls(0),
+ fTRDncls0(0),
+ fTRDpidQuality(0),
+ fTRDnSlices(0),
+ fTRDslices(0x0)
+
{
//
// The default ESD constructor
//
- Int_t i, j;
+ 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.;
- fHMPIDr[i]=1.;
+ 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<kNPlane;i++) {
- for (j=0;j<kNSlice;j++) {
- fTRDsignals[i][j]=0.;
- }
- fTRDTimBin[i]=-1;
+ for (i=0; i<3; i++) { fV0Indexes[i]=0;}
+ for (i=0;i<kTRDnPlanes;i++) {
+ fTRDTimBin[i]=0;
}
- for (i=0;i<4;i++) {fTPCPoints[i]=-1;}
- for (i=0;i<3;i++) {fTOFLabel[i]=-1;}
- for (i=0;i<10;i++) {fTOFInfo[i]=-1;}
+ 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):
AliExternalTrackParam(track),
+ fCp(0),
+ fIp(0),
+ fTPCInner(0),
+ fOp(0),
+ fFriendTrack(0),
+ fTPCClusterMap(track.fTPCClusterMap),
+ fTPCSharedMap(track.fTPCSharedMap),
fFlags(track.fFlags),
- fLabel(track.fLabel),
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),
- fStopVertex(track.fStopVertex),
- fCp(0),
fCchi2(track.fCchi2),
- fIp(0),
- fOp(0),
fITSchi2(track.fITSchi2),
- fITSncls(track.fITSncls),
- fITSClusterMap(track.fITSClusterMap),
- fITSsignal(track.fITSsignal),
- fITSLabel(track.fITSLabel),
fTPCchi2(track.fTPCchi2),
- fTPCncls(track.fTPCncls),
- fTPCnclsF(track.fTPCnclsF),
- fTPCClusterMap(track.fTPCClusterMap),
+ fTRDchi2(track.fTRDchi2),
+ fTOFchi2(track.fTOFchi2),
+ fHMPIDchi2(track.fHMPIDchi2),
+ fGlobalChi2(track.fGlobalChi2),
+ fITSsignal(track.fITSsignal),
fTPCsignal(track.fTPCsignal),
- fTPCsignalN(track.fTPCsignalN),
fTPCsignalS(track.fTPCsignalS),
- fTPCLabel(track.fTPCLabel),
- fTRDchi2(track.fTRDchi2),
- fTRDncls(track.fTRDncls),
- fTRDncls0(track.fTRDncls0),
fTRDsignal(track.fTRDsignal),
- fTRDLabel(track.fTRDLabel),
fTRDQuality(track.fTRDQuality),
fTRDBudget(track.fTRDBudget),
- fTOFchi2(track.fTOFchi2),
- fTOFindex(track.fTOFindex),
- fTOFCalChannel(track.fTOFCalChannel),
fTOFsignal(track.fTOFsignal),
fTOFsignalToT(track.fTOFsignalToT),
fTOFsignalRaw(track.fTOFsignalRaw),
fTOFsignalDz(track.fTOFsignalDz),
- fHMPIDchi2(track.fHMPIDchi2),
- fHMPIDqn(track.fHMPIDqn),
- fHMPIDcluIdx(track.fHMPIDcluIdx),
- fHMPIDsignal(track.fHMPIDsignal),
- fHMPIDtrkTheta(track.fHMPIDtrkTheta),
- fHMPIDtrkPhi(track.fHMPIDtrkPhi),
fHMPIDtrkX(track.fHMPIDtrkX),
fHMPIDtrkY(track.fHMPIDtrkY),
fHMPIDmipX(track.fHMPIDmipX),
fHMPIDmipY(track.fHMPIDmipY),
- fEMCALindex(track.fEMCALindex),
- fFriendTrack(0)
+ fTPCncls(track.fTPCncls),
+ fTPCnclsF(track.fTPCnclsF),
+ fTPCsignalN(track.fTPCsignalN),
+ fITSncls(track.fITSncls),
+ fITSClusterMap(track.fITSClusterMap),
+ fTRDncls(track.fTRDncls),
+ fTRDncls0(track.fTRDncls0),
+ fTRDpidQuality(track.fTRDpidQuality),
+ fTRDnSlices(track.fTRDnSlices),
+ fTRDslices(0x0)
{
//
//copy constructor
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];}
//
- for (Int_t i=0;i<kNPlane;i++) {
- for (Int_t j=0;j<kNSlice;j++) {
- fTRDsignals[i][j]=track.fTRDsignals[i][j];
- }
+ 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];
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.fFriendTrack) fFriendTrack=new AliESDfriendTrack(*(track.fFriendTrack));
}
//_______________________________________________________________________
-AliESDtrack::AliESDtrack(TParticle * part) :
- AliExternalTrackParam(),
+AliESDtrack::AliESDtrack(const AliVTrack *track) :
+ AliExternalTrackParam(track),
+ fCp(0),
+ fIp(0),
+ fTPCInner(0),
+ fOp(0),
+ fFriendTrack(0),
+ fTPCClusterMap(159),//number of padrows
+ fTPCSharedMap(159),//number of padrows
fFlags(0),
+ fID(),
fLabel(0),
- fID(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),
- fStopVertex(0),
- fCp(0),
- fCchi2(1e10),
- fIp(0),
- fOp(0),
+ fCchi2(0),
fITSchi2(0),
- fITSncls(0),
- fITSClusterMap(0),
- fITSsignal(0),
- fITSLabel(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),
+ fHMPIDtrkX(0),
+ fHMPIDtrkY(0),
+ fHMPIDmipX(0),
+ fHMPIDmipY(0),
fTPCncls(0),
fTPCnclsF(0),
- fTPCClusterMap(159),//number of padrows
- fTPCsignal(0),
fTPCsignalN(0),
- fTPCsignalS(0),
- fTPCLabel(0),
- fTRDchi2(0),
+ fITSncls(0),
+ fITSClusterMap(0),
fTRDncls(0),
fTRDncls0(0),
- fTRDsignal(0),
+ fTRDpidQuality(0),
+ fTRDnSlices(0),
+ fTRDslices(0x0)
+{
+ //
+ // ESD track from AliVTrack.
+ // This is not a copy constructor !
+ //
+
+ 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++) {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),
+ 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),
- fTOFchi2(0),
- fTOFindex(0),
- fTOFCalChannel(-1),
- fTOFsignal(-1),
+ fTOFsignal(0),
fTOFsignalToT(0),
fTOFsignalRaw(0),
fTOFsignalDz(0),
- fHMPIDchi2(1e10),
- fHMPIDqn(-1),
- fHMPIDcluIdx(-1),
- fHMPIDsignal(-1),
- fHMPIDtrkTheta(-1),
- fHMPIDtrkPhi(-1),
- fHMPIDtrkX(-1),
- fHMPIDtrkY(-1),
- fHMPIDmipX(-1),
- fHMPIDmipY(-1),
- fEMCALindex(kEMCALNoMatch),
- fFriendTrack(0)
+ fHMPIDtrkX(0),
+ fHMPIDtrkY(0),
+ fHMPIDmipX(0),
+ fHMPIDmipY(0),
+ fTPCncls(0),
+ fTPCnclsF(0),
+ fTPCsignalN(0),
+ fITSncls(0),
+ fITSClusterMap(0),
+ fTRDncls(0),
+ fTRDncls0(0),
+ fTRDpidQuality(0),
+ fTRDnSlices(0),
+ fTRDslices(0x0)
{
//
// ESD track from TParticle
//
// Reset all the arrays
- Int_t i, j;
+ Int_t i;
for (i=0; i<AliPID::kSPECIES; i++) {
fTrackTime[i]=0.;
fR[i]=0.;
for (i=0; i<3; i++) { fKinkIndexes[i]=0;}
for (i=0; i<3; i++) { fV0Indexes[i]=-1;}
- for (i=0;i<kNPlane;i++) {
- for (j=0;j<kNSlice;j++) {
- fTRDsignals[i][j]=0.;
- }
- fTRDTimBin[i]=-1;
+ for (i=0;i<kTRDnPlanes;i++) {
+ fTRDTimBin[i]=0;
}
- for (i=0;i<4;i++) {fTPCPoints[i]=-1;}
- for (i=0;i<3;i++) {fTOFLabel[i]=-1;}
- for (i=0;i<10;i++) {fTOFInfo[i]=-1;}
+ 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
//
//printf("Delete track\n");
delete fIp;
+ delete fTPCInner;
delete fOp;
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;
+ }
+
+ // 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;
+ 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;
+
+ 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;
+ fTRDpidQuality = source.fTRDpidQuality;
+ 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
}
+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
- // fD: Impact parameter in XY-plane
- // fZ: Impact parameter in Z
+ // 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;
- fStopVertex = 0;
// Reset track parameters constrained to the primary vertex
- fCp = 0;
- fCchi2 = 0;
+ delete fCp;fCp = 0;
// Reset track parameters at the inner wall of TPC
- fIp = 0;
-
+ delete fIp;fIp = 0;
+ delete fTPCInner;fTPCInner=0;
// Reset track parameters at the inner wall of the TRD
- fOp = 0;
+ delete fOp;fOp = 0;
+
// Reset ITS track related information
fITSchi2 = 0;
fTPCncls = 0;
fTPCnclsF = 0;
fTPCClusterMap = 0;
+ fTPCSharedMap = 0;
fTPCsignal= 0;
fTPCsignalS= 0;
fTPCsignalN= 0;
fTRDncls = 0;
fTRDncls0 = 0;
fTRDsignal = 0;
- for (Int_t i=0;i<kNPlane;i++) {
- for (Int_t j=0;j<kNSlice;j++) {
- fTRDsignals[i][j] = 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;
+ fTRDpidQuality = 0;
+ if(fTRDnSlices)
+ delete[] fTRDslices;
+ fTRDslices=0x0;
+ fTRDnSlices=0;
fTRDBudget = 0;
// Reset TOF related track information
fTOFchi2 = 0;
- fTOFindex = 0;
+ fTOFindex = -1;
fTOFsignal = 0;
- fTOFCalChannel = -1;
+ fTOFCalChannel = 0;
fTOFsignalToT = 0;
fTOFsignalRaw = 0;
fTOFsignalDz = 0;
// Reset HMPID related track information
fHMPIDchi2 = 0;
- fHMPIDqn = -1;
+ fHMPIDqn = 0;
fHMPIDcluIdx = -1;
fHMPIDsignal = 0;
for (Int_t i=0;i<AliPID::kSPECIES;i++) fHMPIDr[i] = 0;
- fHMPIDtrkTheta = -1;
- fHMPIDtrkPhi = -1;
- fHMPIDtrkX = -1;
- fHMPIDtrkY = -1;
- fHMPIDmipX = -1;
- fHMPIDmipY = -1;
+ fHMPIDtrkTheta = 0;
+ fHMPIDtrkPhi = 0;
+ fHMPIDtrkX = 0;
+ fHMPIDtrkY = 0;
+ fHMPIDmipX = 0;
+ fHMPIDmipY = 0;
fEMCALindex = kEMCALNoMatch;
+ // reset global track chi2
+ fGlobalChi2 = 0;
+
delete fFriendTrack; fFriendTrack = 0;
}
//_______________________________________________________________________
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){
//
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++) {
fITSchi2=t->GetChi2();
fITSsignal=t->GetPIDsignal();
fITSLabel = t->GetLabel();
+ // 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();
+ if (flags==kTPCin) fTPCInner=new AliExternalTrackParam(*t);
if (!fIp) fIp=new AliExternalTrackParam(*t);
else
fIp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance());
fTPCsignal=t->GetPIDsignal();
break;
- case kTRDout: case kTRDin: case kTRDrefit:
- index=fFriendTrack->GetTRDindices();
+ 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++) index[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:
return kTRUE;
}
+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::GetOuterExternalParameters
(Double_t &alpha, Double_t &x, Double_t p[5]) const {
ncls = fTRDncls;
break;
case 3:
- if (fTOFindex != 0)
+ 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;
}
ncls = GetTRDclusters(idx);
break;
case 3:
- if (fTOFindex != 0) {
- idx[0] = GetTOFcluster();
+ 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;
}
}
//_______________________________________________________________________
-Int_t AliESDtrack::GetITSclusters(Int_t *idx) const {
+Char_t AliESDtrack::GetITSclusters(Int_t *idx) const {
//---------------------------------------------------------------------
// This function returns indices of the assgined ITS clusters
//---------------------------------------------------------------------
if (idx!=0) {
Int_t *index=fFriendTrack->GetITSindices();
- for (Int_t i=0; i<AliESDfriendTrack::kMaxITScluster; i++) idx[i]=index[i];
+ 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
//---------------------------------------------------------------------
return fTPCncls;
}
-Float_t AliESDtrack::GetTPCdensity(Int_t row0, Int_t row1) const{
+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 AliESDtrack::GetTRDclusters(Int_t *idx) const {
+UChar_t AliESDtrack::GetTRDclusters(Int_t *idx) const {
//---------------------------------------------------------------------
// This function returns indices of the assgined TRD clusters
//---------------------------------------------------------------------
return fTRDncls;
}
+//_______________________________________________________________________
+UChar_t AliESDtrack::GetTRDtracklets(Int_t *idx) const {
+ //---------------------------------------------------------------------
+ // This function returns indices of the assigned TRD tracklets
+ //---------------------------------------------------------------------
+ if (idx!=0) {
+ Int_t *index=fFriendTrack->GetTRDindices();
+ for (Int_t i=0; i<6/*AliESDfriendTrack::kMaxTRDcluster*/; i++) idx[i]=index[i];
+ }
+ return fTRDncls;
+}
+
//_______________________________________________________________________
void AliESDtrack::SetTRDpid(const Double_t *p) {
// Sets values for the probability of each particle type (in TRD)
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];
}
+void AliESDtrack::SetNumberOfTRDslices(Int_t n) {
+ //Sets the number of slices used for PID
+ if (fTRDnSlices != 0) return;
+ fTRDnSlices=kTRDnPlanes*n;
+ fTRDslices=new Double32_t[fTRDnSlices];
+ for (Int_t i=0; i<fTRDnSlices; 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
+ Int_t ns=GetNumberOfTRDslices();
+ if (ns==0) {
+ AliError("No TRD slices allocated for this track !");
+ return;
+ }
+
+ if ((plane<0) || (plane>=kTRDnPlanes)) {
+ AliError("Wrong TRD plane !");
+ return;
+ }
+ if ((slice<0) || (slice>=ns)) {
+ AliError("Wrong TRD slice !");
+ return;
+ }
+ Int_t n=plane*ns + slice;
+ fTRDslices[n]=q;
+}
+
+Double_t AliESDtrack::GetTRDslice(Int_t plane, Int_t slice) const {
+ //Gets the charge from the slice of the plane
+ Int_t ns=GetNumberOfTRDslices();
+ if (ns==0) {
+ //AliError("No TRD slices allocated for this track !");
+ return -1.;
+ }
+
+ if ((plane<0) || (plane>=kTRDnPlanes)) {
+ AliError("Wrong TRD plane !");
+ return -1.;
+ }
+ if ((slice<-1) || (slice>=ns)) {
+ //AliError("Wrong TRD slice !");
+ return -1.;
+ }
+
+ if (slice==-1) {
+ Double_t q=0.;
+ for (Int_t i=0; i<ns; i++) q+=fTRDslices[plane*ns + i];
+ return q/ns;
+ }
+
+ return fTRDslices[plane*ns + slice];
+}
+
+
//_______________________________________________________________________
void AliESDtrack::SetTOFpid(const Double_t *p) {
// Sets the probability of each particle type (in TOF)
}
//_______________________________________________________________________
-Bool_t AliESDtrack::RelateToVertex
-(const AliESDVertex *vtx, Double_t b, Double_t maxd) {
+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;
+}
+
+//_______________________________________________________________________
+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".
// 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)
+ // In the case of success, the returned value is kTRUE
+ // (otherwise, it's kFALSE)
//
if (!vtx) return kFALSE;
- Double_t alpha=GetAlpha();
- Double_t sn=TMath::Sin(alpha), cs=TMath::Cos(alpha);
- Double_t x=GetX(), y=GetParameter()[0], snp=GetParameter()[2];
- Double_t xv= vtx->GetXv()*cs + vtx->GetYv()*sn;
- Double_t yv=-vtx->GetXv()*sn + vtx->GetYv()*cs, zv=vtx->GetZv();
- x-=xv; y-=yv;
+ Double_t dz[2],cov[3];
+ if (!PropagateToDCA(vtx, b, maxd, dz, cov)) return kFALSE;
- //Estimate the impact parameter neglecting the track curvature
- Double_t d=TMath::Abs(x*snp - y*TMath::Sqrt(1.- snp*snp));
- if (d > maxd) return kFALSE;
-
- //Propagate to the DCA
- Double_t crv=kB2C*b*GetParameter()[4];
- if (TMath::Abs(b) < kAlmost0Field) crv=0.;
-
- Double_t tgfv=-(crv*x - snp)/(crv*y + TMath::Sqrt(1.-snp*snp));
- sn=tgfv/TMath::Sqrt(1.+ tgfv*tgfv);
- if (TMath::Abs(tgfv)>0.) cs = sn/tgfv;
- else cs=1.;
+ 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]};
- x = xv*cs + yv*sn;
- yv=-xv*sn + yv*cs; xv=x;
+ Double_t chi2=GetPredictedChi2(p,c);
+ if (chi2>kVeryBig) return kFALSE;
- if (!Propagate(alpha+TMath::ASin(sn),xv,b)) return kFALSE;
+ fCchi2=chi2;
- fD = GetParameter()[0] - yv;
- fZ = GetParameter()[1] - zv;
-
- Double_t cov[6]; vtx->GetCovMatrix(cov);
- //***** Improvements by A.Dainese
- alpha=GetAlpha(); sn=TMath::Sin(alpha); cs=TMath::Cos(alpha);
- Double_t s2ylocvtx = cov[0]*sn*sn + cov[2]*cs*cs - 2.*cov[1]*cs*sn;
- fCdd = GetCovariance()[0] + s2ylocvtx; // neglecting correlations
- fCdz = GetCovariance()[1]; // between (x,y) and z
- fCzz = GetCovariance()[2] + cov[5]; // in vertex's covariance matrix
- //*****
+ //--- Could now these lines be removed ? ---
+ delete fCp;
+ fCp=new AliExternalTrackParam(*this);
- {//Try to constrain
- Double_t p[2]={yv,zv}, c[3]={cov[2],0.,cov[5]};
- Double_t chi2=GetPredictedChi2(p,c);
+ if (!fCp->Update(p,c)) {delete fCp; fCp=0; return kFALSE;}
+ //----------------------------------------
- if (chi2>77.) return kFALSE;
- AliExternalTrackParam tmp(*this);
- if (!tmp.Update(p,c)) return kFALSE;
+ if (!cParam) return kTRUE;
- fCchi2=chi2;
- if (!fCp) fCp=new AliExternalTrackParam();
- new (fCp) AliExternalTrackParam(tmp);
- }
+ *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: ") ;
}
}
-Bool_t AliESDtrack::PropagateTo(Double_t xToGo, Double_t b, Double_t mass,
-Double_t maxStep, Bool_t rotateTo, Double_t maxSnp){
- //----------------------------------------------------------------
+
+//
+// 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){
//
- // MI's function
+ // Fill points in the polymarker
//
- // Propagates this track to the plane X=xk (cm)
- // in the magnetic field "b" (kG),
- // the correction for the material is included
+ TObjArray arrayRef;
+ arrayRef.AddLast(new AliExternalTrackParam(*this));
+ if (fIp) arrayRef.AddLast(new AliExternalTrackParam(*fIp));
+ if (fOp) arrayRef.AddLast(new AliExternalTrackParam(*fOp));
//
- // mass - mass used in propagation - used for energy loss correction
- // maxStep - maximal step for propagation
- //----------------------------------------------------------------
- const Double_t kEpsilon = 0.00001;
- Double_t xpos = GetX();
- Double_t dir = (xpos<xToGo) ? 1.:-1.;
+ 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;
+ }
+ // Rotate to the mean position
//
- while ( (xToGo-xpos)*dir > kEpsilon){
- Double_t step = dir*TMath::Min(TMath::Abs(xToGo-xpos), maxStep);
- Double_t x = xpos+step;
- Double_t xyz0[3],xyz1[3],param[7];
- GetXYZ(xyz0); //starting global position
- if (!GetXYZAt(x,b,xyz1)) return kFALSE; // no prolongation
- xyz1[2]+=kEpsilon; // waiting for bug correction in geo
- AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param);
- if (TMath::Abs(GetSnpAt(x,b)) >= maxSnp) return kFALSE;
- if (!AliExternalTrackParam::PropagateTo(x,b)) return kFALSE;
-
- Double_t rho=param[0],x0=param[1],distance=param[4];
- Double_t d=distance*rho/x0;
-
- if (!CorrectForMaterial(d,x0,mass)) return kFALSE;
- if (rotateTo){
- if (TMath::Abs(GetSnp()) >= maxSnp) return kFALSE;
- GetXYZ(xyz0); // global position
- Double_t alphan = TMath::ATan2(xyz0[1], xyz0[0]);
- //
- Double_t ca=TMath::Cos(alphan-GetAlpha()),
- sa=TMath::Sin(alphan-GetAlpha());
- Double_t sf=GetSnp(), cf=TMath::Sqrt(1.- sf*sf);
- Double_t sinNew = sf*ca - cf*sa;
- if (TMath::Abs(sinNew) >= maxSnp) return kFALSE;
- if (!Rotate(alphan)) return kFALSE;
+ 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++;
}
- xpos = GetX();
}
- return kTRUE;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff