Adding protected copy constructor and assignment operator

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

diff --git a/STEER/AliTracker.h b/STEER/AliTracker.h
index dfa53d5458e5654c8a663e08a01610a589f7fa83..f84390808b558be8be12d7bd92c3cb069e3988c0 100644 (file)
--- a/STEER/AliTracker.h
+++ b/STEER/AliTracker.h
@@ -11,12 +11,12 @@
 //       Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch 
 //-------------------------------------------------------------------------
 #include <TObject.h>
+#include "AliMagF.h"
 
 class AliCluster;
 class TTree;
 class AliKalmanTrack;
 class AliESD;
-class AliMagF;
 class AliTrackPoint;
 
 class AliTracker : public TObject {
@@ -42,8 +42,7 @@ public:
   virtual Int_t LoadClusters(TTree *)=0;
   virtual void UnloadClusters()=0;
   virtual AliCluster *GetCluster(Int_t index) const=0;
-  //  virtual UShort_t GetVolumeID(Int_t index) {return 0;}
-  virtual Bool_t GetTrackPoint(Int_t /* index */ , AliTrackPoint& /* p */) { return kFALSE;}
+  virtual Bool_t GetTrackPoint(Int_t /* index */ , AliTrackPoint& /* p */) const { return kFALSE;}
   virtual void  UseClusters(const AliKalmanTrack *t, Int_t from=0) const;
   virtual void  CookLabel(AliKalmanTrack *t,Float_t wrong) const; 
   Double_t GetX() const {return fX;}
@@ -55,12 +54,21 @@ public:
 
   static void SetFieldMap(const AliMagF* map, Bool_t uni);
   static const AliMagF *GetFieldMap() {return fgkFieldMap;}
+  static Double_t GetBz(Float_t *r) {
+    Float_t b[3]; fgkFieldMap->Field(r,b);
+    Double_t bz=-Double_t(b[2]);
+    return  (TMath::Sign(1e-13,bz) + bz);
+  }
+  static Double_t GetBz() {return fgBz;}
+  static Bool_t UniformField() {return fgUniformField;}
 
 private:
 
   AliTracker & operator=(const AliTracker & atr);
 
-  static const AliMagF *fgkFieldMap; //field map
+  static Bool_t fgUniformField;       // uniform field flag
+  static const AliMagF *fgkFieldMap;  // field map
+  static Double_t fgBz;               // Nominal Bz (kG)
 
   Double_t fX;  //X-coordinate of the primary vertex
   Double_t fY;  //Y-coordinate of the primary vertex
@@ -70,7 +78,7 @@ private:
   Double_t fSigmaY; // error of the primary vertex position in Y
   Double_t fSigmaZ; // error of the primary vertex position in Z
 
-  ClassDef(AliTracker,2) //abstract tracker
+  ClassDef(AliTracker,3) //abstract tracker
 };
 
 #endif