Record changes.

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

diff --git a/STEER/AliTrackReference.h b/STEER/AliTrackReference.h
index a8ac1992c6641855213cf588d4d8881f01bc9c1b..87669d21df48e79d7a8eb556b68cf6cdc74b3773 100644 (file)
--- a/STEER/AliTrackReference.h
+++ b/STEER/AliTrackReference.h
@@ -5,24 +5,59 @@
 
 /* $Id$ */
 
+// 
+// Track Reference object is created every time particle is 
+// crossing detector bounds. 
+// The object is created by Step Manager
+//
+
 #include "TObject.h"
+#include "TMath.h"
+
+class AliExternalTrackParam;
 
 class AliTrackReference : public TObject {
+
 public:
+
   AliTrackReference();
+  AliTrackReference(Int_t label);
   virtual ~AliTrackReference() {}
+
+  static AliExternalTrackParam * MakeTrack(const AliTrackReference *ref, Double_t mass);
   virtual Int_t GetTrack() const {return fTrack;}
   virtual void SetTrack(Int_t track) {fTrack=track;}
   virtual void SetLength(Float_t length){fLength=length;}
-  virtual Float_t GetLength(){return fLength;}
+  virtual void SetTime(Float_t time) {fTime = time;}
+  virtual Float_t GetLength() const {return fLength;}
+  virtual Float_t GetTime() const {return fTime;}
+  virtual Int_t Label() const {return fTrack;}
+  virtual void SetLabel(Int_t track) {fTrack=track;}
+  virtual Float_t R() const {return TMath::Sqrt(fX*fX+fY*fY);}
+  virtual Float_t Pt() const {return TMath::Sqrt(fPx*fPx+fPy*fPy);}
+  virtual Float_t Phi() const {return TMath::Pi()+TMath::ATan2(-fPy,-fPx);}
+  virtual Float_t Theta() const {return (fPz==0)?TMath::Pi()/2:TMath::ACos(fPz/P());}
   virtual Float_t X() const {return fX;}
   virtual Float_t Y() const {return fY;}
   virtual Float_t Z() const {return fZ;}
   virtual Float_t Px() const {return fPx;}
   virtual Float_t Py() const {return fPy;}
   virtual Float_t Pz() const {return fPz;}
+  virtual Float_t P() const {return TMath::Sqrt(fPx*fPx+fPy*fPy+fPz*fPz);}
+  virtual Int_t   UserId() const {return fUserId;}
   virtual void SetPosition(Float_t x, Float_t y, Float_t z){fX=x; fY=y; fZ=z;}
   virtual void SetMomentum(Float_t px, Float_t py, Float_t pz){fPx=px; fPy=py; fPz=pz;}
+  virtual void SetUserId(Int_t userId){fUserId=userId;}
+
+  // Methods to get position of the track reference in 
+  // in the TPC/TRD/TOF Tracking coordinate system
+
+  virtual Float_t PhiPos() const {return TMath::Pi()+TMath::ATan2(-fY, -fX);}
+  virtual Float_t Alpha() const 
+    {return TMath::Pi()*(20*((((Int_t)(PhiPos()*180/TMath::Pi()))/20))+10)/180.;}
+  virtual Float_t LocalX() const {return fX*TMath::Cos(-Alpha()) - fY*TMath::Sin(-Alpha());}
+  virtual Float_t LocalY() const {return fX*TMath::Sin(-Alpha()) + fY*TMath::Cos(-Alpha());}
+
 
 protected:
   Int_t     fTrack;  // Track number
@@ -32,8 +67,10 @@ protected:
   Float_t   fPx;     // momentum
   Float_t   fPy;     // momentum
   Float_t   fPz;     // momentum
-  Float_t   fLength; // track lenght from its origin
+  Float_t   fLength; // track lenght from its origin in cm
+  Float_t   fTime;   // time of flight in cm  
+  Int_t     fUserId; // optional Id defined by user
 
-  ClassDef(AliTrackReference,2)  //Base class for all Alice hits
+  ClassDef(AliTrackReference,4)  //Base class for all Alice track references
 };
 #endif