//-------------------------------------------------------------------------
// ITS tracker
-// reads AliITSclusterMI clusters and creates AliITStrackV2 tracks
-// Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
+// reads AliITSclusterMI clusters and creates AliITStrackMI tracks
+// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
//-------------------------------------------------------------------------
#include <TObjArray.h>
#include "AliTracker.h"
-#include "AliITSrecoV2.h"
-#include "AliITStrackV2.h"
+#include "AliITStrackMI.h"
#include "AliITSclusterV2.h"
+#include "AliV0vertex.h"
-class AliITSclusterV2;
class AliESD;
class AliITSgeom;
class TTree;
class AliHelix;
class AliV0vertex;
+class AliESDV0MI;
-
-
-class AliITSRecV0Info: public TObject {
-public:
- void Update(Float_t vertex[3], Float_t mass1, Float_t mass2);
- Double_t fDist1; //info about closest distance according closest MC - linear DCA
- Double_t fDist2; //info about closest distance parabolic DCA
- Double_t fInvMass; //reconstructed invariant mass -
- //
- Double_t fPdr[3]; //momentum at vertex daughter - according approx at DCA
- Double_t fXr[3]; //rec. position according helix
- //
- Double_t fPm[3]; //momentum at the vertex mother
- Double_t fAngle[3]; //three angles
- Double_t fRr; // rec position of the vertex
- Int_t fLab[2]; //MC label of the partecle
- Float_t fPointAngleFi; //point angle fi
- Float_t fPointAngleTh; //point angle theta
- Float_t fPointAngle; //point angle full
- ClassDef(AliITSRecV0Info,1) // container for
-};
+class TTreeSRedirector;
public:
AliITStrackerMI():AliTracker(){}
AliITStrackerMI(const AliITSgeom *geom);
+ ~AliITStrackerMI();
AliCluster *GetCluster(Int_t index) const;
AliITSclusterV2 *GetClusterLayer(Int_t layn, Int_t ncl) const
{return fgLayers[layn].GetCluster(ncl);}
{return fgLayers[layn].GetNumberOfClusters();}
Int_t LoadClusters(TTree *cf);
void UnloadClusters();
- Int_t Clusters2Tracks(TTree *in, TTree *out);
Int_t Clusters2Tracks(AliESD *event);
Int_t PropagateBack(AliESD *event);
Int_t RefitInward(AliESD *event);
- Bool_t RefitAt(Double_t x, AliITStrackV2 *seed, const AliITStrackV2 *t);
+ Bool_t RefitAt(Double_t x, AliITStrackMI *seed, const AliITStrackMI *t);
void SetupFirstPass(Int_t *flags, Double_t *cuts=0);
void SetupSecondPass(Int_t *flags, Double_t *cuts=0);
void UseClusters(const AliKalmanTrack *t, Int_t from=0) const;
void GetNTeor(Int_t layer, const AliITSclusterV2* cl, Float_t theta, Float_t phi, Float_t &ny, Float_t &nz);
Int_t GetError(Int_t layer, const AliITSclusterV2*cl, Float_t theta, Float_t phi, Float_t expQ, Float_t &erry, Float_t &errz);
- Double_t GetPredictedChi2MI(AliITStrackV2* track, const AliITSclusterV2 *cluster,Int_t layer);
- Int_t UpdateMI(AliITStrackV2* track, const AliITSclusterV2* cl,Double_t chi2,Int_t layer);
+
+ void GetDCASigma(AliITStrackMI* track, Float_t & sigmarfi, Float_t &sigmaz);
+ Double_t GetPredictedChi2MI(AliITStrackMI* track, const AliITSclusterV2 *cluster,Int_t layer);
+ Int_t UpdateMI(AliITStrackMI* track, const AliITSclusterV2* cl,Double_t chi2,Int_t layer) const;
class AliITSdetector {
public:
AliITSdetector(){}
Double_t GetR() const {return fR;}
Int_t FindClusterIndex(Float_t z) const;
AliITSclusterV2 *GetCluster(Int_t i) const {return i<fN? fClusters[i]:0;}
- Float_t *GetWeight(Int_t i) {return i<fN ?&fClusterWeight[i]:0;}
+ Float_t *GetWeight(Int_t i) {return i<fN ?&fClusterWeight[i]:0;}
AliITSdetector &GetDetector(Int_t n) const { return fDetectors[n]; }
Int_t FindDetectorIndex(Double_t phi, Double_t z) const;
Double_t GetThickness(Double_t y, Double_t z, Double_t &x0) const;
Int_t GetSkip() const {return fSkip;}
void SetSkip(Int_t skip){fSkip=skip;}
void IncAccepted(){fAccepted++;}
- Int_t GetAccepted() const {return fAccepted;}
+ Int_t GetAccepted() const {return fAccepted;}
protected:
+ AliITSlayer(const AliITSlayer& /*layer*/){;}
Double_t fR; // mean radius of this layer
Double_t fPhiOffset; // offset of the first detector in Phi
Int_t fNladders; // number of ladders
Float_t fY10[11][kMaxClusterPerLayer10]; // y position of the clusters slice in y
Float_t fZ10[11][kMaxClusterPerLayer10]; // z position of the clusters slice in y
Int_t fN10[11]; // number of cluster in slice
- Float_t fDy10;
- Float_t fBy10[11][2];
+ Float_t fDy10; // delta y
+ Float_t fBy10[11][2]; // slice borders
//
AliITSclusterV2 *fClusters20[21][kMaxClusterPerLayer20]; // pointers to clusters - slice in y
Int_t fClusterIndex20[21][kMaxClusterPerLayer20]; // pointers to clusters - slice in y
Float_t fY20[21][kMaxClusterPerLayer20]; // y position of the clusters slice in y
Float_t fZ20[21][kMaxClusterPerLayer20]; // z position of the clusters slice in y
Int_t fN20[21]; // number of cluster in slice
- Float_t fDy20;
- Float_t fBy20[21][2];
+ Float_t fDy20; //delta y
+ Float_t fBy20[21][2]; //slice borders
//
AliITSclusterV2** fClustersCs; //clusters table in current slice
Int_t *fClusterIndexCs; //cluster index in current slice
Int_t fI; // index of the current cluster within the "window"
Int_t fImax; // index of the last cluster within the "window"
Int_t fSkip; // indicates possibility to skip cluster
- Int_t fAccepted;
+ Int_t fAccepted; // accept indicator
Double_t fRoad; // road defined by the cluster density
};
AliITStrackerMI::AliITSlayer & GetLayer(Int_t layer) const;
AliITStrackerMI::AliITSdetector & GetDetector(Int_t layer, Int_t n) const {return GetLayer(layer).GetDetector(n); }
protected:
- void FindV0(AliESD *event); //try to find V0
- Double_t TestV0(AliHelix *h1, AliHelix *h2, AliITSRecV0Info *vertex); //try to find V0 - return DCA
- Double_t FindBestPair(Int_t esdtrack0, Int_t esdtrack1,AliITSRecV0Info *vertex); // try to find best pair from the tree of track hyp.
+ Int_t GetNearestLayer(const Double_t *xr) const; //get nearest upper layer close to the point xr
+ void FindV02(AliESD *event); //try to find V0
+ void UpdateTPCV0(AliESD *event); //try to update, or reject TPC V0s
void CookLabel(AliKalmanTrack *t,Float_t wrong) const;
- void CookLabel(AliITStrackV2 *t,Float_t wrong) const;
+ void CookLabel(AliITStrackMI *t,Float_t wrong) const;
Double_t GetEffectiveThickness(Double_t y, Double_t z) const;
- void FollowProlongationTree(AliITStrackV2 * otrack, Int_t esdindex);
+ void FollowProlongationTree(AliITStrackMI * otrack, Int_t esdindex, Bool_t constrain);
void ResetBestTrack() {
- fBestTrack.~AliITStrackV2();
- new(&fBestTrack) AliITStrackV2(fTrackToFollow);
+ fBestTrack.~AliITStrackMI();
+ new(&fBestTrack) AliITStrackMI(fTrackToFollow);
}
- void ResetTrackToFollow(const AliITStrackV2 &t) {
- fTrackToFollow.~AliITStrackV2();
- new(&fTrackToFollow) AliITStrackV2(t);
+ void ResetTrackToFollow(const AliITStrackMI &t) {
+ fTrackToFollow.~AliITStrackMI();
+ new(&fTrackToFollow) AliITStrackMI(t);
}
- void CookdEdx(AliITStrackV2* track);
- Double_t GetNormalizedChi2(AliITStrackV2 * track, Int_t mode);
- Double_t GetTruncatedChi2(AliITStrackV2 * track, Float_t fac);
- Double_t NormalizedChi2(AliITStrackV2 * track, Int_t layer);
- Double_t GetInterpolatedChi2(AliITStrackV2 * forwardtrack, AliITStrackV2 * backtrack);
- Double_t GetMatchingChi2(AliITStrackV2 * track1, AliITStrackV2 * track2);
+ void CookdEdx(AliITStrackMI* track);
+ Double_t GetNormalizedChi2(AliITStrackMI * track, Int_t mode);
+ Double_t GetTruncatedChi2(AliITStrackMI * track, Float_t fac);
+ Double_t NormalizedChi2(AliITStrackMI * track, Int_t layer);
+ Double_t GetInterpolatedChi2(AliITStrackMI * forwardtrack, AliITStrackMI * backtrack);
+ Double_t GetMatchingChi2(AliITStrackMI * track1, AliITStrackMI * track2);
Double_t GetDeadZoneProbability(Double_t zpos, Double_t zerr);
Float_t *GetWeight(Int_t index);
- void AddTrackHypothesys(AliITStrackV2 * track, Int_t esdindex);
+ void AddTrackHypothesys(AliITStrackMI * track, Int_t esdindex);
void SortTrackHypothesys(Int_t esdindex, Int_t maxcut, Int_t mode);
- AliITStrackV2 * GetBestHypothesys(Int_t esdindex, AliITStrackV2 * original, Int_t checkmax);
+ AliITStrackMI * GetBestHypothesys(Int_t esdindex, AliITStrackMI * original, Int_t checkmax);
void GetBestHypothesysMIP(TObjArray &itsTracks);
- void RegisterClusterTracks(AliITStrackV2* track, Int_t id);
- void UnRegisterClusterTracks(AliITStrackV2* track, Int_t id);
- Float_t GetNumberOfSharedClusters(AliITStrackV2* track,Int_t id, Int_t list[6], AliITSclusterV2 *clist[6]);
- Int_t GetOverlapTrack(AliITStrackV2 *track, Int_t trackID, Int_t &shared, Int_t clusterlist[6], Int_t overlist[6]);
- AliITStrackV2 * GetBest2Tracks(Int_t trackID1, Int_t treackID2, Float_t th0, Float_t th1);
+ void RegisterClusterTracks(AliITStrackMI* track, Int_t id);
+ void UnRegisterClusterTracks(AliITStrackMI* track, Int_t id);
+ Float_t GetNumberOfSharedClusters(AliITStrackMI* track,Int_t id, Int_t list[6], AliITSclusterV2 *clist[6]);
+ Int_t GetOverlapTrack(AliITStrackMI *track, Int_t trackID, Int_t &shared, Int_t clusterlist[6], Int_t overlist[6]);
+ AliITStrackMI * GetBest2Tracks(Int_t trackID1, Int_t treackID2, Float_t th0, Float_t th1);
Float_t * GetErrY(Int_t trackindex) const {return &fCoeficients[trackindex*48];}
Float_t * GetErrZ(Int_t trackindex) const {return &fCoeficients[trackindex*48+12];}
Float_t * GetNy(Int_t trackindex) const {return &fCoeficients[trackindex*48+24];}
Float_t * GetNz(Int_t trackindex) const {return &fCoeficients[trackindex*48+36];}
void SignDeltas( TObjArray *ClusterArray, Float_t zv);
void MakeCoeficients(Int_t ntracks);
- void UpdateESDtrack(AliITStrackV2* track, ULong_t flags);
+ void UpdateESDtrack(AliITStrackMI* track, ULong_t flags) const;
Int_t fI; // index of the current layer
static AliITSlayer fgLayers[kMaxLayer];// ITS layers
- AliITStrackV2 fTracks[kMaxLayer]; // track estimations at the ITS layers
- AliITStrackV2 fBestTrack; // "best" track
- AliITStrackV2 fTrackToFollow; // followed track
+ AliITStrackMI fTracks[kMaxLayer]; // track estimations at the ITS layers
+ AliITStrackMI fBestTrack; // "best" track
+ AliITStrackMI fTrackToFollow; // followed track
TObjArray fTrackHypothesys; // ! array with track hypothesys- ARRAY is the owner of tracks- MI
+ TObjArray fBestHypothesys; // ! array with track hypothesys- ARRAY is the owner of tracks- MI
+ TObjArray fOriginal; // ! array with seeds from the TPC
Int_t fBestTrackIndex[100000]; // ! index of the best track
Int_t fCurrentEsdTrack; // ! current esd track - MI
Int_t fPass; // current pass through the data
Int_t fConstraint[2]; // constraint flags
-
+ Bool_t fAfterV0; //indicates V0 founded
Int_t fLayersNotToSkip[kMaxLayer]; // layer masks
Int_t fLastLayerToTrackTo; // the innermost layer to track to
Float_t * fCoeficients; //! working array with errors and mean cluser shape
- ClassDef(AliITStrackerMI,1) //ITS tracker V2
+ AliESD * fEsd; //! pointer to the ESD event
+ TTreeSRedirector *fDebugStreamer; //!debug streamer
+ private:
+ AliITStrackerMI(const AliITStrackerMI * /*tracker*/){;}
+ ClassDef(AliITStrackerMI,2) //ITS tracker MI
};
}
}
-inline Double_t AliITStrackerMI::NormalizedChi2(AliITStrackV2 * track, Int_t layer)
+inline Double_t AliITStrackerMI::NormalizedChi2(AliITStrackMI * track, Int_t layer)
{
//--------------------------------------------------------------------
//get normalize chi2
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff