X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=ITS%2FAliITStrackerV2.h;h=bca24192ca80bc0698dcd829cee546219181c1ee;hb=cc87dfb640b253553c6e093eba26520c72aeffc9;hp=c606071299271dad95b3666bcc08500b1fbdd34c;hpb=61ab8ea8c9088d87670bd732c535fd7f13821e47;p=u%2Fmrichter%2FAliRoot.git

diff --git a/ITS/AliITStrackerV2.h b/ITS/AliITStrackerV2.h
index c6060712992..bca24192ca8 100644
--- a/ITS/AliITStrackerV2.h
+++ b/ITS/AliITStrackerV2.h
@@ -1,20 +1,21 @@
-#ifndef ALIITSTRACKER_H
-#define ALIITSTRACKER_H
+#ifndef ALIITSTRACKERV2_H
+#define ALIITSTRACKERV2_H
 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
  * See cxx source for full Copyright notice                               */
 
 //-------------------------------------------------------------------------
 //                          ITS tracker
-//
-//       Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch 
+//     reads AliITSclusterV2 clusters and creates AliITStrackV2 tracks
+//           Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch 
 //-------------------------------------------------------------------------
 #include "AliTracker.h"
 #include "AliITSrecoV2.h"
 #include "AliITStrackV2.h"
 
 class AliITSclusterV2;
+class AliESD;
 class AliITSgeom;
-class TFile;
+class TTree;
 
 
 //-------------------------------------------------------------------------
@@ -22,20 +23,32 @@ class AliITStrackerV2 : public AliTracker {
 public:
   AliITStrackerV2():AliTracker(){}
   AliITStrackerV2(const AliITSgeom *geom);
+  ~AliITStrackerV2(){}
   AliCluster *GetCluster(Int_t index) const;
-  void LoadClusters();
+  AliITSclusterV2 *GetCluster(Int_t l, Int_t c) const {
+    return fgLayers[l].GetCluster(c);
+  }
+  Int_t GetNumberOfClustersLayer(Int_t n) const {
+     return fgLayers[n].GetNumberOfClusters();
+  }   
+  Int_t LoadClusters(TTree *cf);
   void UnloadClusters();
-  Int_t Clusters2Tracks(const TFile *in, TFile *out);
-  Int_t PropagateBack(const TFile *in, TFile *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);
   void SetupFirstPass(Int_t *flags, Double_t *cuts=0);
   void SetupSecondPass(Int_t *flags, Double_t *cuts=0);
-  Bool_t RefitAt(Double_t x, AliITStrackV2 *t, Int_t *index);
+
+  void SetLastLayerToTrackTo(Int_t l=0) {fLastLayerToTrackTo=l;} 
+  void SetLayersNotToSkip(Int_t *l);
+
+  void UseClusters(const AliKalmanTrack *t, Int_t from=0) const;
 
   class AliITSdetector {
   public:
     AliITSdetector(){}
     AliITSdetector(Double_t r,Double_t phi) {fR=r; fPhi=phi;}
-    void *operator new(size_t s,AliITSdetector *p) {return p;}
     Double_t GetR()   const {return fR;}
     Double_t GetPhi() const {return fPhi;}
   private:
@@ -45,40 +58,43 @@ public:
 
   class AliITSlayer {
   public:
+    enum {kNsector=5, kMaxClusterPerSector=kMaxClusterPerLayer/kNsector};
     AliITSlayer();
     AliITSlayer(Double_t r, Double_t p, Double_t z, Int_t nl, Int_t nd);
    ~AliITSlayer();
     Int_t InsertCluster(AliITSclusterV2 *c);
     void ResetClusters();
-    void SelectClusters(Double_t zmi,Double_t zma,Double_t ymi,Double_t yma);
+    Int_t SelectClusters(Float_t zmi, Float_t zma, Float_t ymi, Float_t yma);
     const AliITSclusterV2 *GetNextCluster(Int_t &ci);
-    void *operator new(size_t s, AliITSlayer *p) {return p;}
+    void ResetRoad();
+    Double_t GetRoad() const {return fRoad;}
     Double_t GetR() const {return fR;}
-    AliITSclusterV2 *GetCluster(Int_t i) const {return fClusters[i];} 
+    AliITSclusterV2 *GetCluster(Int_t i) const { return fClusters[i]; } 
     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 InRoad() const ;
-    Int_t GetNumberOfClusters() const {return fN;}
     Int_t GetNladders() const {return fNladders;}
     Int_t GetNdetectors() const {return fNdetectors;}
-  private:
+    Int_t GetNumberOfClusters() const;
+  protected:
     Double_t fR;                // mean radius of this layer
     Double_t fPhiOffset;        // offset of the first detector in Phi
     Int_t fNladders;            // number of ladders
     Double_t fZOffset;          // offset of the first detector in Z
     Int_t fNdetectors;          // detectors/ladder
     AliITSdetector *fDetectors; // array of detectors
-    Int_t fN;                   // number of clusters
+
     AliITSclusterV2 *fClusters[kMaxClusterPerLayer]; // pointers to clusters
-    Double_t fZmax;      //    edges
-    Double_t fYmin;      //   of  the
-    Double_t fYmax;      //   "window"
-    Int_t fI;            // index of the current cluster within the "window"
-    Int_t FindClusterIndex(Double_t z) const;
+    Int_t fN[kNsector];         // numbers of clusters sector by sector 
+
+    Int_t fIndex[kMaxClusterPerLayer]; // indexes of selected clusters 
+    Int_t fNsel;                       // number of selected clusters
+
+    Double_t fRoad;     // road defined by the cluster density
+    Int_t FindClusterIndex(Float_t z, Int_t s) const;
   };
 
-private:
+protected:
   void CookLabel(AliKalmanTrack *t,Float_t wrong) const;
   Double_t GetEffectiveThickness(Double_t y, Double_t z) const;
   void  FollowProlongation();
@@ -92,12 +108,17 @@ private:
      new(&fTrackToFollow) AliITStrackV2(t);
   }
   Int_t fI;                              // index of the current layer
-  static AliITSlayer fLayers[kMaxLayer]; // ITS layers
+  static AliITSlayer fgLayers[kMaxLayer];// ITS layers
   AliITStrackV2 fTracks[kMaxLayer];      // track estimations at the ITS layers
   AliITStrackV2 fBestTrack;              // "best" track 
   AliITStrackV2 fTrackToFollow;          // followed track
   Int_t fPass;                           // current pass through the data 
   Int_t fConstraint[2];                  // constraint flags
+
+  Int_t fLayersNotToSkip[kMaxLayer];     // layer masks
+  Int_t fLastLayerToTrackTo;             // the innermost layer to track to
+
+  ClassDef(AliITStrackerV2,1)   //ITS tracker V2
 };