3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 // Simple particle gun.
9 // Momentum, phi and theta of the particle as well as the particle type can be set.
10 // andreas.morsch@cern.ch
13 #include "AliGenerator.h"
15 class AliGenFixed : public AliGenerator
19 AliGenFixed(Int_t npart);
20 virtual ~AliGenFixed() {}
21 virtual void Generate();
22 virtual void Init() {}
23 virtual void SetMomentum(Float_t pmom) {fPMin=pmom; fPMax=pmom; SetBit(kMomentumRange);}
24 virtual void SetPhi(Float_t phi) {fPhiMin=phi*TMath::Pi()/180; fPhiMax=phi*TMath::Pi()/180; SetBit(kPhiRange);}
25 virtual void SetTheta(Float_t theta) {fThetaMin=theta*TMath::Pi()/180; fThetaMax=theta*TMath::Pi()/180; SetBit(kThetaRange);}
26 virtual void SetPart(Int_t part) {fIpart=part;}
27 virtual void SetGun(Double_t px, Double_t py, Double_t pz, Double_t x,
28 Double_t y, Double_t z) {fP[0]=px;fP[1]=py;fP[2]=pz;fOrigin[0]=x;fOrigin[1]=y;
29 fOrigin[2]=z;fExplicit=kTRUE;}
33 Int_t fIpart; // Particle type
34 Int_t fExplicit; // True if momentum vector has been set by user.
35 Float_t fP[3]; // Momentum vector
37 ClassDef(AliGenFixed,1) // Single particle generator