//-------------------------------------------------------
-// Class for vertex determination with ESD tracks
+// Class for vertex determination with tracks
//
// Origin: AliITSVertexerTracks
// A.Dainese, Padova, andrea.dainese@pd.infn.it
/*****************************************************************************
* *
- * This class determines the vertex of a set of ESD tracks. *
+ * This class determines the vertex of a set of tracks. *
* Different algorithms are implemented, see data member fAlgo. *
* *
*****************************************************************************/
-#include "AliESDVertex.h"
-#include "AliESDtrack.h"
-#include "AliLog.h"
-
#include <TObjArray.h>
#include <TMatrixD.h>
-class TTree;
+#include "AliESDVertex.h"
+#include "AliExternalTrackParam.h"
+#include "AliLog.h"
+
+class AliVEvent;
class AliESDEvent;
+class AliStrLine;
class AliVertexerTracks : public TObject {
AliVertexerTracks(Double_t fieldkG);
virtual ~AliVertexerTracks();
- AliESDVertex* FindPrimaryVertex(const AliESDEvent *esdEvent);
- AliESDVertex* VertexForSelectedTracks(TTree *trkTree,Bool_t optUseFitter=kTRUE, Bool_t optPropagate=kTRUE);
- AliESDVertex* VertexForSelectedTracks(TObjArray *trkArray, Bool_t optUseFitter=kTRUE, Bool_t optPropagate=kTRUE);
- AliESDVertex* RemoveTracksFromVertex(AliESDVertex *inVtx,TTree *trksTree,Float_t *diamondxy);
+ AliESDVertex* FindPrimaryVertex(AliVEvent *vEvent);
+ AliESDVertex* FindPrimaryVertex(TObjArray *trkArrayOrig,UShort_t *idOrig);
+ AliESDVertex* VertexForSelectedTracks(TObjArray *trkArray,UShort_t *id,
+ Bool_t optUseFitter=kTRUE,
+ Bool_t optPropagate=kTRUE,
+ Bool_t optUseDiamondConstraint=kFALSE);
+ AliESDVertex* VertexForSelectedESDTracks(TObjArray *trkArray,
+ Bool_t optUseFitter=kTRUE,
+ Bool_t optPropagate=kTRUE,
+ Bool_t optUseDiamondConstraint=kFALSE);
+ AliESDVertex* RemoveTracksFromVertex(AliESDVertex *inVtx,
+ TObjArray *trkArray,UShort_t *id,
+ Float_t *diamondxy) const;
+ AliESDVertex* RemoveConstraintFromVertex(AliESDVertex *inVtx,
+ Float_t *diamondxyz,
+ Float_t *diamondcov) const;
+ void SetITSMode(Double_t dcacut=0.1,
+ Double_t dcacutIter0=0.1,
+ Double_t maxd0z0=0.5,
+ Int_t minCls=5,
+ Int_t mintrks=1,
+ Double_t nsigma=3.,
+ Double_t mindetfitter=100.,
+ Double_t maxtgl=1000.,
+ Double_t fidR=3.,
+ Double_t fidZ=30.,
+ Int_t finderAlgo=1,
+ Int_t finderAlgoIter0=4);
+ void SetTPCMode(Double_t dcacut=0.1,
+ Double_t dcacutIter0=1.0,
+ Double_t maxd0z0=5.0,
+ Int_t minCls=10,
+ Int_t mintrks=1,
+ Double_t nsigma=3.,
+ Double_t mindetfitter=0.1,
+ Double_t maxtgl=1.5,
+ Double_t fidR=3.,
+ Double_t fidZ=30.,
+ Int_t finderAlgo=1,
+ Int_t finderAlgoIter0=4);
+ void SetCuts(Double_t *cuts);
void SetConstraintOff() { fConstraint=kFALSE; return; }
void SetConstraintOn() { fConstraint=kTRUE; return; }
- void SetDebug(Int_t optdebug=0) { fDebug=optdebug; return; }
void SetDCAcut(Double_t maxdca) { fDCAcut=maxdca; return; }
+ void SetDCAcutIter0(Double_t maxdca) { fDCAcutIter0=maxdca; return; }
void SetFinderAlgorithm(Int_t opt=1) { fAlgo=opt; return; }
- void SetITSRequired() { fITSin=kTRUE; return; }
- void SetITSrefitRequired() { fITSin=kTRUE;fITSrefit=kTRUE; return; }
- void SetITSNotRequired() { fITSrefit=kFALSE;fITSin=kFALSE; return; }
+ void SetITSrefitRequired() { fITSrefit=kTRUE; return; }
+ Bool_t GetITSrefitRequired() const { return fITSrefit; }
void SetITSrefitNotRequired() { fITSrefit=kFALSE; return; }
+ void SetFiducialRZ(Double_t r=3,Double_t z=30) { fFiducialR=r; fFiducialZ=z; return; }
void SetMaxd0z0(Double_t maxd0z0=0.5) { fMaxd0z0=maxd0z0; return; }
- void SetMinITSClusters(Int_t n=5) { fMinITSClusters = n; return; }
- void SetMinTracks(Int_t n=1) { fMinTracks = n; return; }
+ void SetMinClusters(Int_t n=5) { fMinClusters=n; return; }
+ Int_t GetMinClusters() const { return fMinClusters; }
+ void SetMinTracks(Int_t n=1) { fMinTracks=n; return; }
void SetNSigmad0(Double_t n=3) { fNSigma=n; return; }
Double_t GetNSigmad0() const { return fNSigma; }
+ void SetMinDetFitter(Double_t mindet=100.) { fMinDetFitter=mindet; return; }
+ void SetMaxTgl(Double_t maxtgl=1.) { fMaxTgl=maxtgl; return; }
void SetOnlyFitter() { if(!fConstraint) AliFatal("Set constraint first!");
fOnlyFitter=kTRUE; return; }
void SetSkipTracks(Int_t n,Int_t *skipped);
static void GetStrLinDerivMatrix(Double_t *p0,Double_t *p1,Double_t (*m)[3],Double_t *d);
static void GetStrLinDerivMatrix(Double_t *p0,Double_t *p1,Double_t *sigmasq,Double_t (*m)[3],Double_t *d);
static AliESDVertex TrackletVertexFinder(TClonesArray *lines, Int_t optUseWeights=0);
+ static AliESDVertex TrackletVertexFinder(AliStrLine **lines, const Int_t knacc, Int_t optUseWeights=0);
void SetFieldkG(Double_t field=-999.) { fFieldkG=field; return; }
Double_t GetFieldkG() const {
if(fFieldkG<-99.) AliFatal("Field value not set");
protected:
void HelixVertexFinder();
void OneTrackVertFinder();
- Int_t PrepareTracks(TTree &trkTree,Int_t optImpParCut);
- Bool_t TrackToPoint(AliESDtrack *t,
+ Int_t PrepareTracks(TObjArray &trkArrayOrig,UShort_t *idOrig,
+ Int_t optImpParCut);
+ Bool_t PropagateTrackTo(AliExternalTrackParam *track,
+ Double_t xToGo);
+ Bool_t TrackToPoint(AliExternalTrackParam *t,
TMatrixD &ri,TMatrixD &wWi,
Bool_t uUi3by3=kFALSE) const;
void VertexFinder(Int_t optUseWeights=0);
- void VertexFitter(Bool_t useConstraint=kFALSE);
+ void VertexFitter();
void StrLinVertexFinderMinDist(Int_t optUseWeights=0);
- void TooFewTracks(const AliESDEvent *esdEvent);
+ void TooFewTracks();
AliESDVertex fVert; // vertex after vertex finder
AliESDVertex *fCurrentVertex; // ESD vertex after fitter
+ UShort_t fMode; // 0 ITS+TPC; 1 TPC
Double_t fFieldkG; // z component of field (kGauss)
Double_t fNominalPos[3]; // initial knowledge on vertex position
Double_t fNominalCov[6]; // initial knowledge on vertex position
+ TObjArray fTrkArraySel; // array with tracks to be processed
+ UShort_t *fIdSel; // IDs of the tracks (AliESDtrack::GetID())
+ Int_t *fTrksToSkip; // track IDs to be skipped for find and fit
+ Int_t fNTrksToSkip; // number of tracks to be skipped
Bool_t fConstraint; // true when "mean vertex" was set in
// fNominal ... and must be used in the fit
Bool_t fOnlyFitter; // primary with one fitter shot only
// (use only with beam constraint)
Int_t fMinTracks; // minimum number of tracks
- Int_t fMinITSClusters; // minimum number of ITS clusters per track
- TObjArray fTrkArray; // array with tracks to be processed
- Int_t *fTrksToSkip; // tracks to be skipped for find and fit
- Int_t fNTrksToSkip; // number of tracks to be skipped
+ Int_t fMinClusters; // minimum number of ITS or TPC clusters per track
Double_t fDCAcut; // maximum DCA between 2 tracks used for vertex
- Int_t fAlgo; // option for vertex finding algorythm
+ Double_t fDCAcutIter0; // maximum DCA between 2 tracks used for vertex
Double_t fNSigma; // number of sigmas for d0 cut in PrepareTracks()
- Double_t fMaxd0z0; // value [mm] for sqrt(d0d0+z0z0) cut
+ Double_t fMaxd0z0; // value for sqrt(d0d0+z0z0) cut
// in PrepareTracks(1) if fConstraint=kFALSE
- Bool_t fITSin; // if kTRUE (default), use only kITSin tracks
- // if kFALSE, use all tracks (also TPC only)
+ Double_t fMinDetFitter; // minimum determinant to try to invertex matrix
+ Double_t fMaxTgl; // maximum tgl of tracks
Bool_t fITSrefit; // if kTRUE (default), use only kITSrefit tracks
// if kFALSE, use all tracks (also TPC only)
+ Double_t fFiducialR; // radius of fiducial cylinder for tracks
+ Double_t fFiducialZ; // length of fiducial cylinder for tracks
Double_t fnSigmaForUi00; // n. sigmas from finder in TrackToPoint
- Int_t fDebug; //! debug flag - verbose printing if >0
+ Int_t fAlgo; // option for vertex finding algorythm
+ Int_t fAlgoIter0; // this is for iteration 0
// fAlgo=1 (default) finds minimum-distance point among all selected tracks
// approximated as straight lines
// and uses errors on track parameters as weights
AliVertexerTracks(const AliVertexerTracks & source);
AliVertexerTracks & operator=(const AliVertexerTracks & source);
- ClassDef(AliVertexerTracks,9) // 3D Vertexing with ESD tracks
+ ClassDef(AliVertexerTracks,12) // 3D Vertexing with tracks
};
#endif
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff