Coding convention violations corrected (from E. Lopez)
[u/mrichter/AliRoot.git] / STEER / AliGenerator.h
CommitLineData
fe4da5cc 1#ifndef ALIGENERATOR_H
2#define ALIGENERATOR_H
3da30618 3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6/* $Id$ */
7
fe4da5cc 8///////////////////////////////////////////////////////////
9// //
10// Class to generate the particles for the MC //
11// The base class is empty //
12// //
13///////////////////////////////////////////////////////////
14
b23a502f 15class TGenerator;
16
c9001868 17#include "TLorentzVector.h"
fe4da5cc 18#include "TArrayF.h"
65fb704d 19#include "AliRndm.h"
fe4da5cc 20
aee8290b 21typedef enum { kNoSmear, kPerEvent, kPerTrack } VertexSmear_t;
f89cabfe 22typedef enum { kExternal, kInternal} VertexSource_t;
fe4da5cc 23
65fb704d 24class AliGenerator : public TNamed, public AliRndm
fe4da5cc 25{
26
fe4da5cc 27 public:
28 AliGenerator();
29 AliGenerator(Int_t npart);
aee8290b 30 AliGenerator(const AliGenerator &gen);
fe4da5cc 31 virtual ~AliGenerator();
32 virtual void Init();
ef42d733 33 void Copy(AliGenerator &gen) const;
94de3818 34 virtual void SetOrigin(Float_t ox, Float_t oy, Float_t oz);
35 virtual void SetOrigin(const TLorentzVector &o);
36 virtual void SetSigma(Float_t sx, Float_t sy, Float_t sz);
37 virtual void SetMomentumRange(Float_t pmin=0, Float_t pmax=1.e10);
10797936 38 virtual void SetPtRange(Float_t ptmin=0, Float_t ptmax=100);
94de3818 39 virtual void SetPhiRange(Float_t phimin=-180., Float_t phimax=180);
40 virtual void SetYRange(Float_t ymin=-100, Float_t ymax=100);
fe4da5cc 41 virtual void SetVRange(Float_t vxmin, Float_t vxmax,
42 Float_t vymin, Float_t vymax,
94de3818 43 Float_t vzmin, Float_t vzmax);
fe4da5cc 44 virtual void SetNumberParticles(Int_t npart=100) {fNpart=npart;}
94de3818 45 virtual Int_t NumberParticles() const {return fNpart;}
46 virtual void SetThetaRange(Float_t thetamin=0, Float_t thetamax=180);
fe4da5cc 47 virtual void Generate()=0;
48 virtual void SetParentWeight(Float_t wgt) {fParentWeight=wgt;}
49 virtual void SetChildWeight(Float_t wgt) {fChildWeight=wgt;}
50 virtual void SetAnalog(Int_t flag=1) {fAnalog=flag;}
51 virtual void SetVertexSmear(VertexSmear_t smear) {fVertexSmear = smear;}
f89cabfe 52 virtual void SetVertexSource(VertexSource_t smear) {fVertexSource = kInternal;}
4a3ba9d2 53 virtual void SetTrackingFlag(Int_t flag=1) {fTrackIt=flag;}
f89cabfe 54 void Vertex();
55 void VertexExternal();
56 virtual void VertexInternal();
2939cc95 57 virtual void FinishRun(){;}
58
fe4da5cc 59 virtual void SetMC(TGenerator *theMC)
60 {if (!fgMCEvGen) fgMCEvGen =theMC;}
c9001868 61
ef42d733 62 AliGenerator & operator=(const AliGenerator &gen);
aee8290b 63
c9001868 64 // Getters
65
94de3818 66 virtual void GetOrigin(Float_t &ox, Float_t &oy, Float_t &oz) const
67 {ox=fOrigin.At(0);oy=fOrigin.At(1);oz=fOrigin.At(2);}
68 virtual void GetOrigin(TLorentzVector &o) const
69 {o[0]=fOrigin.At(0);o[1]=fOrigin.At(1);o[2]=fOrigin.At(2);o[3]=0;}
c9001868 70
aee8290b 71protected:
72 static TGenerator* fgMCEvGen; // Pointer to the generator
73 Float_t fThetaMin; //Minimum theta of generation in radians
74 Float_t fThetaMax; //Maximum theta of generation in radians
75 Float_t fPhiMin; //Minimum phi of generation in radians
76 Float_t fPhiMax; //Maximum phi of generation in radians
77 Float_t fPMin; //Minimum momentum of generation in GeV/c
78 Float_t fPMax; //Minimum momentum of generation in GeV/c
79 Float_t fPtMin; //Minimum transverse momentum
80 Float_t fPtMax; //Maximum transverse momentum
81 Float_t fYMin; //Minimum rapidity
82 Float_t fYMax; //Maximum rapidity
83 TArrayF fVMin; //Minimum Decaylength
84 TArrayF fVMax; //Minimum Decaylength
85 Int_t fNpart; //Maximum number of particles per event
86 Float_t fParentWeight; //Parent Weight
87 Float_t fChildWeight; //ChildWeight
aee8290b 88 Int_t fAnalog; //Flaf for anolog or pt-weighted generation
89 //
f89cabfe 90 VertexSmear_t fVertexSmear; //Vertex Smearing mode
91 VertexSource_t fVertexSource; //Vertex source (internal/external)
aee8290b 92 Int_t fTrackIt; // if 1 Track final state particles
f89cabfe 93 TArrayF fOrigin; // Origin of event
94 TArrayF fOsigma; // Sigma of the Origin of even
95 TArrayF fVertex; //! Vertex of current event
96
aee8290b 97 enum {kThetaRange=1, kVertexRange=2, kPhiRange=4, kPtRange=8,
98 kYRange=32, kMomentumRange=16};
99
94de3818 100 ClassDef(AliGenerator,1) // Base class for event generators
fe4da5cc 101};
102
103#endif