#ifndef ALIGENERATOR_H
#define ALIGENERATOR_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+/* $Id$ */
+
///////////////////////////////////////////////////////////
// //
// Class to generate the particles for the MC //
// //
///////////////////////////////////////////////////////////
-#include "TNamed.h"
+class TGenerator;
+
+#include "TLorentzVector.h"
#include "TArrayF.h"
-#include "TGenerator.h"
+#include "AliRndm.h"
-typedef enum { none, perEvent, perTrack } VertexSmear_t;
+typedef enum { kNoSmear, kPerEvent, kPerTrack } VertexSmear_t;
+typedef enum { kExternal, kInternal} VertexSource_t;
-class AliGenerator : public TNamed
+class AliGenerator : public TNamed, public AliRndm
{
+ public:
+ AliGenerator();
+ AliGenerator(Int_t npart);
+ AliGenerator(const AliGenerator &gen);
+ virtual ~AliGenerator();
+ virtual void Init();
+ 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);
+ virtual void SetNumberParticles(Int_t npart=100) {fNpart=npart;}
+ 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;}
+
+ AliGenerator & operator=(const AliGenerator &gen);
+
+ // Getters
+
+ 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;
+ static TGenerator* fgMCEvGen; // Pointer to the generator
Float_t fThetaMin; //Minimum theta of generation in radians
Float_t fThetaMax; //Maximum theta of generation in radians
Float_t fPhiMin; //Minimum phi of generation in radians
Float_t fChildWeight; //ChildWeight
Int_t fAnalog; //Flaf for anolog or pt-weighted generation
//
- VertexSmear_t fVertexSmear; //Vertex Smearing mode
- TArrayF fOrigin; //Origin of event
- TArrayF fOsigma; //Sigma of the Origin of event
+ 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 even
+ TArrayF fVertex; //! Vertex of current event
+
+ enum {kThetaRange=1, kVertexRange=2, kPhiRange=4, kPtRange=8,
+ kYRange=32, kMomentumRange=16};
- public:
- AliGenerator();
- AliGenerator(Int_t npart);
- virtual ~AliGenerator();
- virtual void Init();
- virtual void SetOrigin(Float_t ox, Float_t oy, Float_t oz)
- {fOrigin[0]=ox;fOrigin[1]=oy;fOrigin[2]=oz;}
- 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;}
- virtual void SetPtRange(Float_t ptmin=0, Float_t ptmax=20.)
- {fPtMin = ptmin; fPtMax = ptmax;}
- virtual void SetPhiRange(Float_t phimin=-180., Float_t phimax=180)
- {fPhiMin = TMath::Pi()*phimin/180;
- fPhiMax = TMath::Pi()*phimax/180;}
- virtual void SetYRange(Float_t ymin=-100, Float_t ymax=100)
- {fYMin=ymin; fYMax=ymax;}
- 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;
- }
- 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;}
- 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 SetMC(TGenerator *theMC)
- {if (!fgMCEvGen) fgMCEvGen =theMC;}
- ClassDef(AliGenerator,1)
+ ClassDef(AliGenerator,1) // Base class for event generators
};
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff