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// $Id: PamVMCPrimaryGenerator.h,v 1.0 2007/06/03 |
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#ifndef PAMVMC_PRIMARY_GENERATOR_H |
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#define PAMVMC_PRIMARY_GENERATOR_H |
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#include <iostream> |
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#include <TVirtualMCApplication.h> |
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#include <TClonesArray.h> |
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#include <TVector3.h> |
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#include <TVector2.h> |
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#include <TMath.h> |
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#include <TRandom3.h> |
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#include "PamRootManager.h" |
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class TVirtualMCStack; |
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using std::cout; |
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using std::endl; |
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using TMath::Sqrt; |
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class PamVMCPrimary : public TObject |
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{ |
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public: |
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PamVMCPrimary(): fPDG(0), fX0(0.), fY0(0.), fZ0(0.), fTHETA(0.), fPHI(0.), fP0(0.), fGOOD(kFALSE) { }; |
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Int_t fPDG; |
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Double_t fX0, fY0, fZ0; |
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Double_t fTHETA, fPHI; |
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Double_t fP0; |
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Bool_t fGOOD; |
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void Clean() { fPDG=0; fX0=fY0=fZ0=fTHETA=fPHI=fP0=0.; fGOOD=kFALSE;} |
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void Clear(const Option_t * =""){ Clean(); } |
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void Print(const Option_t * ="") const |
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{ cout<<"PRIMARY particle infromation:"<<endl; |
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cout<<"Pdg="<<fPDG<<endl; //add name later |
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cout<<"Position: "<<"("<<fX0<<","<<fY0<<","<<fZ0<<")"<<endl; |
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cout<<"P0, Theta, Phi: "<<fP0<<","<<fTHETA<<","<<fPHI<<endl; |
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cout<<"GOOD Single Track:"<<fGOOD<<endl; |
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} |
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ClassDef(PamVMCPrimary,1); |
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}; |
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PamVMCPrimary & operator+=(PamVMCPrimary &a, const PamVMCPrimary &b); |
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class PamVMCPrimaryGenerator : public TObject |
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{ |
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public: |
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PamVMCPrimaryGenerator(TVirtualMCStack* stack); |
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PamVMCPrimaryGenerator(); |
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virtual ~PamVMCPrimaryGenerator(); |
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// methods |
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void GeneratePrimary(); |
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// set methods |
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void SetParticle(Int_t pdg); |
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void SetPosition(Double_t vx, Double_t vy, Double_t vz) |
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{fprim.fX0=vx; fprim.fY0=vy; fprim.fZ0=vz;}; |
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void SetKinEnergy(Double_t kinEnergy) {fprim.fP0=KinEToMomentum(kinEnergy);}; |
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void SetRigidity(Double_t rigidity) {fprim.fP0=RigToMomentum(rigidity);}; |
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void SetMomentum(Double_t momentum) {fprim.fP0=momentum; }; |
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void SetDirection(Double_t theta, Double_t phi) {fprim.fTHETA=theta; fprim.fPHI=phi; }; |
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void SetMomentum(Double_t px, Double_t py, Double_t pz); |
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void SetGood(Bool_t isgood) {fprim.fGOOD=isgood; }; |
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// gen methods |
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void GenPosition(Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax){ |
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SetPosition(frnd->Uniform(xmin,xmax),frnd->Uniform(ymin,ymax),frnd->Uniform(zmin,zmax)); } |
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void GenDirection(Double_t thetamin, Double_t thetamax, Double_t phimin, Double_t phimax){ |
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SetDirection(frnd->Uniform(thetamin,thetamax),frnd->Uniform(phimin,phimax)); } |
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//flat spectra generator |
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void GenSpe(Double_t PEmin, Double_t PEmax, Bool_t isEnergy=kFALSE); |
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//power law spectra, gamma - differential spectral index |
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void GenSpe(Double_t PEmin, Double_t PEmax, Double_t gamma, Bool_t isEnergy=kFALSE); |
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// get methods |
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Int_t GetParticle(){ return fprim.fPDG; }; |
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void GetPositon(TVector3 & v){ v.SetXYZ(fprim.fX0,fprim.fY0,fprim.fZ0); }; |
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void GetPosition(Double_t X0, Double_t Y0,Double_t Z0) |
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{X0=fprim.fX0; Y0=fprim.fY0; Z0=fprim.fZ0;}; |
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Double_t GetKinEnergy() { return MomentumToKinE(fprim.fP0); }; |
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Double_t GetRigidity() { return MomentumToRig(fprim.fP0); }; |
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Double_t GetMomentum() { return fprim.fP0; }; |
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void GetDirection(TVector2 & v) {v.Set(fprim.fTHETA,fprim.fPHI);} |
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Bool_t Getgood(){ return fprim.fGOOD; }; |
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//work with collection of primaries |
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void Register(){ |
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PamRootManager::Instance()-> |
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Register("PRIM","TClonesArray", &fprimColl); |
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} |
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void ClearPrimCol(){ |
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fevno=0; |
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(*fprimColl).Clear(); |
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} |
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private: |
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// methods |
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Double_t MomentumToKinE(Double_t P0); |
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Double_t KinEToMomentum(Double_t E0); |
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Double_t MomentumToRig(Double_t P0) { return P0/fcharge; }; |
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Double_t RigToMomentum(Double_t R0){ return R0*fcharge; }; |
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// data members |
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TVirtualMCStack* fStack; |
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Int_t fevno; |
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PamVMCPrimary fprim; |
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Double_t fmass; |
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Double_t fcharge; |
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TClonesArray* fprimColl; |
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TRandom3 * frnd; |
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ClassDef(PamVMCPrimaryGenerator,1) //PamVMCPrimaryGenerator |
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}; |
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// inline functions |
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inline Double_t PamVMCPrimaryGenerator::MomentumToKinE(Double_t P0) |
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{ return Sqrt(P0*P0+fmass*fmass)-fmass; } |
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inline Double_t PamVMCPrimaryGenerator::KinEToMomentum(Double_t E0) |
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{ return Sqrt(E0*E0+2.*E0*fmass); } |
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#endif //PAMVMC_PRIMARY_GENERATOR_H |
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