--- DarthVader/TrackerLevel2/inc/TrkLevel2.h	2006/05/19 13:15:52	1.1
+++ DarthVader/TrackerLevel2/inc/TrkLevel2.h	2006/06/14 10:01:44	1.3
@@ -8,8 +8,16 @@
 #include <TObject.h>
 #include <TObjArray.h>
 #include <TClonesArray.h>
+
 #include <TrkStruct.h>
 
+// z-coordinate of track state-vector reference-plane
+#define ZINI 23.5   
+// upper and lower (mechanical) z-coordinate of the tracker
+#define ZTRKUP 22.29
+#define ZTRKDW -22.22
+
+
 /**
  * \brief Class to describe, by points, a particle trajectory in the apparatus. 
  *
@@ -26,12 +34,18 @@
     float* x;   ///< x coordinates 
     float* y;   ///< y coordinates 
     float* z;   ///< z coordinates 
+    float* thx; ///< x projected angle 
+    float* thy; ///< y projected angle
+    float* tl;  ///< track length
 
-    Trajectory(){npoint=1; x = new float; y = new float; z = new float; return;};
+    Trajectory();
     Trajectory(int n);
     Trajectory(int n, float* pz);
     void Dump();
 
+    float GetLength(){float l=0; for(int i=0; i<npoint;i++)l=l+tl[i]; return l;};
+    float GetLength(int,int);
+
     ClassDef(Trajectory,1);
 
 };
@@ -47,8 +61,12 @@
 
 private:
 
+    int   seqno;           ///<stored track sequential number
+    int   image;           ///<sequential number of track-image
+
 public:
 
+
     float al[5];           ///<TRACK STATE VECTOR 
     float coval[5][5];     ///<covariance matrix 
     int   xgood[6];        ///<mask of included x planes 
@@ -66,24 +84,30 @@
     float ayv[6];          ///<calculated angles (deg) on y view
     float dedx_x[6];       ///<signal in MIP (scaled to 300 micrometer)
     float dedx_y[6];       ///<signal in MIP (scaled to 300 micrometer)
-    int   image;           ///<flag to tag track-images 
+
 
     TrkTrack();
     TrkTrack(const TrkTrack&);
 
     void Dump();
 
+    Int_t  GetSeqNo(){return seqno;}        ///< Returns the track sequential number
+    Int_t  GetImageSeqNo(){return image;}   ///< Returns the track image sequential number
     Bool_t HasImage(){return !(image==-1);} ///< Returns true if the track has an image
-	int DoTrack(Trajectory* t);   			///< Evaluates the trajectory in the apparatus.
-	float BdL(){return 0;};					///< Evaluates the integral of B*dL along the track.
+    int DoTrack(Trajectory* t);   			///< Evaluates the trajectory in the apparatus.
+    int DoTrack2(Trajectory* t);   			///< Evaluates the trajectory in the apparatus.
+    float BdL(){return 0;};					///< Evaluates the integral of B*dL along the track.
     Int_t GetNX(){Int_t n=0; for(Int_t i=0; i<6; i++)n+=xgood[i]; return n;}; 
     Int_t GetNY(){Int_t n=0; for(Int_t i=0; i<6; i++)n+=ygood[i]; return n;};
+    Int_t GetNtot(){return GetNX()+GetNY();};
     Float_t GetRigidity();
     Float_t GetDeflection();
     Float_t GetDEDX();
 
     TrkTrack* GetTrkTrack(){return this;};
 
+    friend class TrkLevel2;
+
     ClassDef(TrkTrack,1);
 
 };
@@ -107,6 +131,8 @@
 
     void Dump();
 
+    friend class TrkLevel2;
+
     ClassDef(TrkSinglet,1);
 
 };
@@ -140,29 +166,32 @@
     TrkLevel2();
 //    TrkLevel2(cTrkLevel2 *);
 
-    int ntrk(){return Track->GetEntries();}     ///< number of stored track
+    int ntrk() {return Track->GetEntries();}     ///< number of stored track
     int nclsx(){return SingletX->GetEntries();} ///< number of x singlets 
     int nclsy(){return SingletY->GetEntries();} ///< number of y singlets 
 
     void Dump();
     void FillCommonVar(cTrkLevel2 *);
     void Clear();
-	void LoadField(TString);
+    void LoadField(TString);
 
-    TrkTrack *GetStoredTrack(int i);
-    TClonesArray *GetTracks();  
+    TrkTrack     *GetStoredTrack(int i);
+    Int_t         GetSeqNo(Int_t i)  {return (((TrkTrack *)Track->At(i))->seqno);}; ///< Returns track sequential number
+    TClonesArray *GetTracks_Chi2Sorted();
+    TClonesArray *GetTracks_NFitSorted();
+    TClonesArray *GetTracks();
 
-    int GetNTracks(){return this->GetTracks()->GetEntries();}
+    int       GetNTracks(){return this->GetTracks()->GetEntries();}
     TrkTrack* GetTrack(int i);
     TrkTrack* GetTrackImage(int i);
 
-    TrkLevel2* GetTrkLevel2(){return this;}
-
+    TrkLevel2*    GetTrkLevel2(){return this;}
+    TClonesArray* GetTrackArray(){return Track;};///< returns pointer to the track array
+    
     ClassDef(TrkLevel2,1);
 
 };
 
 
 
-
 #endif