Possibility to define the magnetic field in the reconstruction (Yu.Belikov)

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

diff --git a/STEER/AliGenerator.h b/STEER/AliGenerator.h
index 7f545afa0e725530c37cc335f05f705b93c29409..6e3d785931c752e0523663555ddd45a50315c37d 100644 (file)
--- a/STEER/AliGenerator.h
+++ b/STEER/AliGenerator.h
@@ -12,13 +12,16 @@
 //                                                       //
 ///////////////////////////////////////////////////////////
 
+class TGenerator;
+
 #include "TLorentzVector.h"
 #include "TArrayF.h"
-#include "TGenerator.h"
+#include "AliRndm.h"
 
 typedef enum { kNoSmear, kPerEvent, kPerTrack } VertexSmear_t;
+typedef enum { kExternal, kInternal}            VertexSource_t;
 
-class AliGenerator : public TNamed
+class AliGenerator : public TNamed, public AliRndm
 {
 
  public:
@@ -27,53 +30,43 @@ class AliGenerator : public TNamed
     AliGenerator(const AliGenerator &gen);
     virtual ~AliGenerator();
     virtual void Init();
-    virtual void Copy(AliGenerator &gen) const;
-    virtual void SetOrigin(Float_t ox, Float_t oy, Float_t oz)
-       {fOrigin[0]=ox;fOrigin[1]=oy;fOrigin[2]=oz;}
-    virtual void SetOrigin(const TLorentzVector &o)
-       {fOrigin[0]=o[0];fOrigin[1]=o[1];fOrigin[2]=o[2];}
-    virtual void SetSigma(Float_t sx, Float_t sy, Float_t sz)
-       {fOsigma[0]=sx;fOsigma[1]=sy;fOsigma[2]=sz;}
-    virtual void SetMomentumRange(Float_t pmin=0, Float_t pmax=1.e10)
-       {fPMin = pmin; fPMax = pmax; SetBit(kMomentumRange);}
-    virtual void SetPtRange(Float_t ptmin=0, Float_t ptmax=1.e10)
-       {fPtMin = ptmin; fPtMax = ptmax; SetBit(kPtRange);}
-    virtual void SetPhiRange(Float_t phimin=-180., Float_t phimax=180)
-       {fPhiMin = TMath::Pi()*phimin/180;
-       fPhiMax = TMath::Pi()*phimax/180; SetBit(kPhiRange);}
-    virtual void SetYRange(Float_t ymin=-100, Float_t ymax=100)
-       {fYMin=ymin; fYMax=ymax; SetBit(kYRange);}
+    void Copy(AliGenerator &gen) const;
+    virtual void SetOrigin(Float_t ox, Float_t oy, Float_t oz);
+    virtual void SetOrigin(const TLorentzVector &o);
+    virtual void SetSigma(Float_t sx, Float_t sy, Float_t sz);
+    virtual void SetMomentumRange(Float_t pmin=0, Float_t pmax=1.e10);
+    virtual void SetPtRange(Float_t ptmin=0, Float_t ptmax=100);
+    virtual void SetPhiRange(Float_t phimin=-180., Float_t phimax=180);
+    virtual void SetYRange(Float_t ymin=-100, Float_t ymax=100);
     virtual void SetVRange(Float_t vxmin, Float_t vxmax,
                           Float_t vymin, Float_t vymax,
-                          Float_t vzmin, Float_t vzmax)
-       {
-           fVMin[0]=vxmin; fVMin[1]=vymin; fVMin[2]=vzmin;
-           fVMax[0]=vxmax; fVMax[1]=vymax; fVMax[2]=vzmax;
-           SetBit(kVertexRange);
-       }
+                          Float_t vzmin, Float_t vzmax);
     virtual void SetNumberParticles(Int_t npart=100) {fNpart=npart;}
-    virtual Int_t NumberParticles() {return fNpart;}
-    virtual void SetThetaRange(Float_t thetamin=0, Float_t thetamax=180)
-       {fThetaMin = TMath::Pi()*thetamin/180;
-       fThetaMax = TMath::Pi()*thetamax/180; SetBit(kThetaRange);}
+    virtual Int_t NumberParticles() const {return fNpart;}
+    virtual void SetThetaRange(Float_t thetamin=0, Float_t thetamax=180);
     virtual void Generate()=0;
     virtual void SetParentWeight(Float_t wgt) {fParentWeight=wgt;}
     virtual void SetChildWeight(Float_t wgt)  {fChildWeight=wgt;}    
     virtual void SetAnalog(Int_t flag=1) {fAnalog=flag;}       
     virtual void SetVertexSmear(VertexSmear_t smear) {fVertexSmear = smear;}
+    virtual void SetVertexSource(VertexSource_t smear) {fVertexSource = kInternal;}    
     virtual void SetTrackingFlag(Int_t flag=1) {fTrackIt=flag;}
-           
+    void Vertex();
+    void VertexExternal();
+    virtual void VertexInternal();
+    virtual void FinishRun(){;}
+    
     virtual void SetMC(TGenerator *theMC) 
        {if (!fgMCEvGen) fgMCEvGen =theMC;}
 
-    virtual AliGenerator & operator=(const AliGenerator &gen);
+    AliGenerator & operator=(const AliGenerator &gen);
 
   // Getters
 
-    virtual void GetOrigin(Float_t &ox, Float_t &oy, Float_t &oz)
-       {ox=fOrigin[0];oy=fOrigin[1];oz=fOrigin[2];}
-    virtual void GetOrigin(TLorentzVector &o)
-       {o[0]=fOrigin[0];o[1]=fOrigin[1];o[2]=fOrigin[2];o[3]=0;}
+    virtual void GetOrigin(Float_t &ox, Float_t &oy, Float_t &oz) const
+       {ox=fOrigin.At(0);oy=fOrigin.At(1);oz=fOrigin.At(2);}
+    virtual void GetOrigin(TLorentzVector &o) const
+       {o[0]=fOrigin.At(0);o[1]=fOrigin.At(1);o[2]=fOrigin.At(2);o[3]=0;}
 
 protected:
     static TGenerator* fgMCEvGen; // Pointer to the generator
@@ -92,18 +85,19 @@ protected:
     Int_t       fNpart;        //Maximum number of particles per event
     Float_t     fParentWeight; //Parent Weight
     Float_t     fChildWeight;  //ChildWeight
-    Int_t       fTrackit;      // Track the generated final state particle if 1
     Int_t       fAnalog;       //Flaf for anolog or pt-weighted generation
    //
-    VertexSmear_t     fVertexSmear; //Vertex Smearing mode
+    VertexSmear_t     fVertexSmear;  //Vertex Smearing mode
+    VertexSource_t    fVertexSource; //Vertex source (internal/external)    
     Int_t       fTrackIt;    // if 1 Track final state particles 
-    TArrayF     fOrigin;     //Origin of event
-    TArrayF     fOsigma;     //Sigma of the Origin of event
-
+    TArrayF     fOrigin;     // Origin of event
+    TArrayF     fOsigma;     // Sigma of the Origin of even
+    TArrayF     fVertex;     //! Vertex of current event
+    
     enum {kThetaRange=1, kVertexRange=2, kPhiRange=4, kPtRange=8,
          kYRange=32, kMomentumRange=16};
 
-    ClassDef(AliGenerator,1)
+    ClassDef(AliGenerator,1) // Base class for event generators
 };
 
 #endif