Added AddTrackParams() method for convenience + some comments

[u/mrichter/AliRoot.git] / STEER / AliAODRecoDecay.h

diff --git a/STEER/AliAODRecoDecay.h b/STEER/AliAODRecoDecay.h
index f3e1bdebfadea7fd98064d094dfea1dfffe3d054..a711d0ff34b85000dd2cf9cf414123ef23c38de9 100644 (file)
--- a/STEER/AliAODRecoDecay.h
+++ b/STEER/AliAODRecoDecay.h
@@ -11,10 +11,12 @@
 
 #include <TMath.h>
 #include <TRef.h>
+#include <TClonesArray.h>
 #include "AliAODVertex.h"
-#include "AliVParticle.h"
+#include "AliAODTrack.h"
+#include "AliVTrack.h"
 
-class AliAODRecoDecay : public AliVParticle {
+class AliAODRecoDecay : public AliVTrack {
 
  public:
 
@@ -36,13 +38,22 @@ class AliAODRecoDecay : public AliVParticle {
   Double_t GetSecVtxZ() const {return GetSecondaryVtx()->GetZ();}
   Double_t RadiusSecVtx() const;
   void     SetSecondaryVtx(AliAODVertex *vtx2) {fSecondaryVtx=vtx2;}
-  AliAODVertex* GetSecondaryVtx() const {return (AliAODVertex*)fSecondaryVtx.GetObject();}
+  AliAODVertex* GetSecondaryVtx() const { return (((AliAODVertex*)fSecondaryVtx.GetObject()) ? (AliAODVertex*)fSecondaryVtx.GetObject() : GetOwnSecondaryVtx()); }
+  void     SetOwnSecondaryVtx(AliAODVertex *vtx2) {fOwnSecondaryVtx=vtx2;}
+  AliAODVertex* GetOwnSecondaryVtx() const {return fOwnSecondaryVtx;}
   void     GetSecondaryVtx(Double_t vtx[3]) const;
   Double_t GetReducedChi2() const {return GetSecondaryVtx()->GetChi2perNDF();}
   Short_t  Charge() const {return fCharge;}
   Short_t  GetCharge() const {return fCharge;}
   void     SetCharge(Short_t charge=0) {fCharge=charge;}
 
+  // Match to MC signal:
+  // check if this candidate is matched to a MC signal
+  // If no, return -1
+  // If yes, return label (>=0) of the AliAODMCParticle
+  Int_t    MatchToMC(Int_t pdgabs,TClonesArray *mcArray) const;
+  Int_t    MatchToMC(Int_t pdgabs,TClonesArray *mcArray,Int_t *dgLabels) const;
+
   // PID
   void      SetPID(Int_t nprongs,Double_t *pid);
   Double_t *GetPID() const { return fPID; }
@@ -60,6 +71,13 @@ class AliAODRecoDecay : public AliVParticle {
   Int_t GetEventNumber() const { return fEventNumber; }
   Int_t GetRunNumber() const { return fRunNumber; }
 
+  // methods of AliVTrack
+  virtual Int_t    GetID() const { return -1; }
+  virtual UChar_t  GetITSClusterMap() const;
+  virtual ULong_t  GetStatus() const;
+  virtual Bool_t   GetXYZ(Double_t *p) const { return XvYvZv(p); }
+  virtual Bool_t   GetCovarianceXYZPxPyPz(Double_t cv[21]) const;
+
   // kinematics & topology
   Double_t Px() const; 
   Double_t Py() const;
@@ -67,9 +85,14 @@ class AliAODRecoDecay : public AliVParticle {
   Double_t P() const {return TMath::Sqrt(Px()*Px()+Py()*Py()+Pz()*Pz());}
   Double_t Pt() const {return TMath::Sqrt(Px()*Px()+Py()*Py());}
   Double_t OneOverPt() const {return (Pt() ? 1./Pt() : 0.);}
+  Bool_t   PxPyPz(Double_t p[3]) const { p[0] = Px(); p[1] = Py(); p[2] = Pz(); return kTRUE; }
   Double_t Phi() const {return TMath::Pi()+TMath::ATan2(-Py(),-Px());}
   Double_t Theta() const {return 0.5*TMath::Pi()-TMath::ATan(Pz()/(Pt()+1.e-13));}
   Double_t Eta() const {return 0.5*TMath::Log((P()+Pz())/(P()-Pz()+1.e-13));}
+  Double_t Xv() const { return GetSecVtxX(); }
+  Double_t Yv() const { return GetSecVtxY(); }
+  Double_t Zv() const { return GetSecVtxZ(); }
+  virtual Bool_t   XvYvZv(Double_t x[3]) const { x[0] = Xv(); x[1] = Yv(); x[2] = Zv(); return kTRUE; }
   Double_t E(UInt_t pdg) const;
   Double_t Y(UInt_t pdg) const {return 0.5*TMath::Log((E(pdg)+Pz())/(E(pdg)-Pz()+1.e-13));}
   Double_t DecayLength(Double_t point[3]) const;
@@ -98,10 +121,11 @@ class AliAODRecoDecay : public AliVParticle {
   Double_t ImpParXY(AliAODVertex *vtx1) const;
 
   // prongs
-  //Int_t   GetNProngs() const {return GetSecondaryVtx()->GetNDaughters();}
-  Int_t   GetNProngs() const {return fNProngs;}
+  Int_t    GetNProngs() const {return fNProngs;}
+  Int_t    GetNDaughters() const {return GetSecondaryVtx()->GetNDaughters();}
+  TObject *GetDaughter(Int_t i) const {return (GetNDaughters()>i ? GetSecondaryVtx()->GetDaughter(i) : 0x0);}
 
-  Short_t ChargeProng(Int_t ip) const;
+  Short_t  ChargeProng(Int_t ip) const;
   Double_t Getd0Prong(Int_t ip) const {return fd0[ip];}
   Double_t Prodd0d0(Int_t ip1=0,Int_t ip2=0) const {return fd0[ip1]*fd0[ip2];} 
   Double_t PxProng(Int_t ip) const {return fPx[ip];}
@@ -144,10 +168,11 @@ class AliAODRecoDecay : public AliVParticle {
     {printf("Dummy function; use AliAODRecoDecay::Y(UInt_t pdg) instead"); return (Double_t)-999.;}
   Double_t M() const 
     {printf("Dummy function"); return (Double_t)-999.;}
-
+  Int_t GetLabel() const {return -1;}
  protected:
 
   TRef     fSecondaryVtx;  // decay vertex
+  AliAODVertex *fOwnSecondaryVtx;  // temporary solution (to work outside AliAODEvent)
   Short_t  fCharge;  // charge, use this convention for prongs charges:
                      // if(charge== 0) even-index prongs are +
                      //                odd-index prongs are -
@@ -174,14 +199,13 @@ class AliAODRecoDecay : public AliVParticle {
   Int_t fRunNumber;
   // TO BE PUT IN SPECIAL MC CLASS
   //Bool_t   fSignal; // TRUE if signal, FALSE if background (for simulation)
-  //Int_t    fEvent;  // number of the event this candidate comes from
   //Int_t  fTrkNum[2]; // numbers of the two decay tracks  
   //Int_t fPdg[2];  // PDG codes of the two tracks (for sim.)
   //Int_t fMum[2];  // PDG codes of the mothers    (for sim.)
 
   //
 
-  ClassDef(AliAODRecoDecay,2)  // base class for AOD reconstructed decays
+  ClassDef(AliAODRecoDecay,4)  // base class for AOD reconstructed decays
 };
 
 
@@ -293,6 +317,7 @@ inline void AliAODRecoDecay::SetDCAs(Int_t nDCA,Double_t *dca)
     return;
   }
   if(fDCA) delete [] fDCA;
+  fNDCA = nDCA;
   fDCA = new Double32_t[nDCA];
   for(Int_t i=0;i<nDCA;i++) 
     fDCA[i] = dca[i]; 
@@ -313,6 +338,7 @@ inline void AliAODRecoDecay::SetPID(Int_t nprongs,Double_t *pid)
     return;
   }
   if(fPID) delete [] fPID;
+  fNPID = nprongs*5;
   fPID = new Double32_t[nprongs*5];
   for(Int_t i=0;i<nprongs;i++) 
     for(Int_t j=0;j<5;j++)
@@ -330,3 +356,4 @@ inline void AliAODRecoDecay::GetPIDProng(Int_t ip,Double_t *pid) const
 
 
 #endif
+