PamVMC/include/PamVMCPrimaryGenerator.h

// $Id: PamVMCPrimaryGenerator.h,v 1.0 2007/06/03 

#ifndef PAMVMC_PRIMARY_GENERATOR_H
#define PAMVMC_PRIMARY_GENERATOR_H

#include <iostream>
#include <TVirtualMCApplication.h>
#include <TClonesArray.h>
#include <TVector3.h>
#include <TVector2.h>
#include <TMath.h>
#include <TRandom.h>
#include <TF1.h>

#include "PamRootManager.h"

class TVirtualMCStack;

using std::cout;
using std::endl;
using TMath::Sqrt;

class PamVMCPrimary : public TObject
{

 public:
  
  PamVMCPrimary(): fPDG(0), fX0(0.), fY0(0.), fZ0(0.), fTHETA(0.), fPHI(0.), fP0(0.), fGOOD(kFALSE) { };


  Int_t fPDG;
  Double_t fX0, fY0, fZ0;
  Double_t fTHETA, fPHI;
  Double_t fP0;
  Bool_t fGOOD;

  void Clean() { fPDG=0; fX0=fY0=fZ0=fTHETA=fPHI=fP0=0.; fGOOD=kFALSE;}

  void Clear(const Option_t * =""){ Clean(); }

  void Print(const Option_t * ="") const
    { cout<<"PRIMARY particle infromation:"<<endl;
      cout<<"Pdg="<<fPDG<<endl; //add name later
      cout<<"Position: "<<"("<<fX0<<","<<fY0<<","<<fZ0<<")"<<endl;
      cout<<"P0, Theta, Phi: "<<fP0<<","<<fTHETA<<","<<fPHI<<endl;
      cout<<"GOOD Single Track:"<<fGOOD<<endl;
    }

  ClassDef(PamVMCPrimary,1);
};

PamVMCPrimary & operator+=(PamVMCPrimary &a, const PamVMCPrimary &b);

class PamVMCPrimaryGenerator : public TObject
{
  public:
    PamVMCPrimaryGenerator(TVirtualMCStack* stack); 
    PamVMCPrimaryGenerator();

    virtual ~PamVMCPrimaryGenerator();

    // methods
    
    void GeneratePrimary();
    // set methods
    void SetParticle(Int_t pdg);
    void SetPosition(Double_t vx, Double_t vy, Double_t vz) 
         {fprim.fX0=vx; fprim.fY0=vy; fprim.fZ0=vz;};
   
    void SetKinEnergy(Double_t kinEnergy) {fprim.fP0=KinEToMomentum(kinEnergy);};
    void SetRigidity(Double_t rigidity) {fprim.fP0=RigToMomentum(rigidity);};
    void SetMomentum(Double_t momentum) {fprim.fP0=momentum; };

    void SetDirection(Double_t theta, Double_t phi) {fprim.fTHETA=theta; fprim.fPHI=phi; };
    void SetMomentum(Double_t px, Double_t py, Double_t pz);

    void SetGood(Bool_t isgood) {fprim.fGOOD=isgood; };

    // gen methods

    void GenPosition(Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax){
      SetPosition(frandom->Uniform(xmin,xmax),frandom->Uniform(ymin,ymax),frandom->Uniform(zmin,zmax)); }

    void GenDirection(Double_t thetamin, Double_t thetamax, Double_t phimin, Double_t phimax){
      SetDirection(ftheta->GetRandom(thetamin, thetamax), frandom->Uniform(phimin,phimax));
    }
    //flat spectra generator
    void GenSpe(Double_t PEmin, Double_t PEmax, Bool_t isEnergy=kFALSE); 
    //power law spectra, gamma - differential spectral index
    void GenSpe(Double_t PEmin, Double_t PEmax, Double_t gamma, Bool_t isEnergy=kFALSE); 
    void GenSpe_Flat(Double_t PEmin, Double_t PEmax, Double_t gamma, Bool_t isEnergy=kFALSE); 
    void GenSpe_3par(Double_t PEmin, Double_t PEmax, Double_t a, Double_t b, Double_t c);
    void GenSphericalPhiThe(); // cecilia // flusso istropo // sets phi the
    void GenSphPhiThe(Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, 
                      Double_t zmin, Double_t zmax); // flusso isotropo entro S2 S3
    //                                                  sets position and phi the
    

    // get methods
    Int_t GetParticle(){ return fprim.fPDG; };
    void  GetPositon(TVector3 & v){ v.SetXYZ(fprim.fX0,fprim.fY0,fprim.fZ0); };
    void  GetPosition(Double_t X0, Double_t Y0,Double_t Z0)
          {X0=fprim.fX0; Y0=fprim.fY0; Z0=fprim.fZ0;};

    Double_t GetKinEnergy() { return MomentumToKinE(fprim.fP0); };
    Double_t GetRigidity() { return MomentumToRig(fprim.fP0); };
    Double_t GetMomentum() { return fprim.fP0; };
    
    void GetDirection(TVector2 & v) {v.Set(fprim.fTHETA,fprim.fPHI);}
    
    Bool_t Getgood(){ return fprim.fGOOD; };

    //initialize random
    void SetRandom(TRandom* random){
      frandom = random;
    }

    //work with collection of primaries

    void Register(){
      PamRootManager::Instance()->
        Register("PRIM","TClonesArray", &fprimColl);
    }

    void ClearPrimCol(){
      fevno=0;
      (*fprimColl).Clear();
    }

  private:
    // methods
    
    Double_t MomentumToKinE(Double_t P0);
    Double_t KinEToMomentum(Double_t E0);
    Double_t MomentumToRig(Double_t P0) { return P0/fcharge; };
    Double_t RigToMomentum(Double_t R0){ return R0*fcharge; };
    Double_t function3par(Double_t xx, Double_t a, Double_t b, Double_t c){return  5.*pow((xx + b * exp(-c * sqrt(xx))),-a);};

    // data members
    TVirtualMCStack*  fStack;
    Int_t             fevno;
    PamVMCPrimary     fprim;
    Double_t          fmass;
    Double_t          fcharge;
    TClonesArray*     fprimColl; 
    TRandom*          frandom; // Class is not a owner of this object
    TF1*              ftheta; // To generate sherical distributhin in theta-angle
    
  ClassDef(PamVMCPrimaryGenerator,1)  //PamVMCPrimaryGenerator
};

// inline functions


inline Double_t PamVMCPrimaryGenerator::MomentumToKinE(Double_t P0)
{ return  Sqrt(P0*P0+fmass*fmass)-fmass; }

inline Double_t PamVMCPrimaryGenerator::KinEToMomentum(Double_t E0)
{ return  Sqrt(E0*E0+2.*E0*fmass); }

#endif //PAMVMC_PRIMARY_GENERATOR_H

1	nikolas	1.1	// $Id: PamVMCPrimaryGenerator.h,v 1.0 2007/06/03
2
3			#ifndef PAMVMC_PRIMARY_GENERATOR_H
4			#define PAMVMC_PRIMARY_GENERATOR_H
5
6			#include <iostream>
7			#include <TVirtualMCApplication.h>
8			#include <TClonesArray.h>
9			#include <TVector3.h>
10			#include <TVector2.h>
11			#include <TMath.h>
12	pam-rm2	1.5	#include <TRandom.h>
13			#include <TF1.h>
14	nikolas	1.1
15			#include "PamRootManager.h"
16
17			class TVirtualMCStack;
18
19			using std::cout;
20			using std::endl;
21			using TMath::Sqrt;
22
23			class PamVMCPrimary : public TObject
24			{
25
26			public:
27
28			PamVMCPrimary(): fPDG(0), fX0(0.), fY0(0.), fZ0(0.), fTHETA(0.), fPHI(0.), fP0(0.), fGOOD(kFALSE) { };
29
30
31			Int_t fPDG;
32			Double_t fX0, fY0, fZ0;
33			Double_t fTHETA, fPHI;
34			Double_t fP0;
35			Bool_t fGOOD;
36
37			void Clean() { fPDG=0; fX0=fY0=fZ0=fTHETA=fPHI=fP0=0.; fGOOD=kFALSE;}
38
39			void Clear(const Option_t * =""){ Clean(); }
40
41			void Print(const Option_t * ="") const
42			{ cout<<"PRIMARY particle infromation:"<<endl;
43			cout<<"Pdg="<<fPDG<<endl; //add name later
44			cout<<"Position: "<<"("<<fX0<<","<<fY0<<","<<fZ0<<")"<<endl;
45			cout<<"P0, Theta, Phi: "<<fP0<<","<<fTHETA<<","<<fPHI<<endl;
46			cout<<"GOOD Single Track:"<<fGOOD<<endl;
47			}
48
49			ClassDef(PamVMCPrimary,1);
50			};
51
52			PamVMCPrimary & operator+=(PamVMCPrimary &a, const PamVMCPrimary &b);
53
54			class PamVMCPrimaryGenerator : public TObject
55			{
56			public:
57			PamVMCPrimaryGenerator(TVirtualMCStack* stack);
58			PamVMCPrimaryGenerator();
59
60			virtual ~PamVMCPrimaryGenerator();
61
62			// methods
63
64			void GeneratePrimary();
65			// set methods
66			void SetParticle(Int_t pdg);
67			void SetPosition(Double_t vx, Double_t vy, Double_t vz)
68			{fprim.fX0=vx; fprim.fY0=vy; fprim.fZ0=vz;};
69
70			void SetKinEnergy(Double_t kinEnergy) {fprim.fP0=KinEToMomentum(kinEnergy);};
71			void SetRigidity(Double_t rigidity) {fprim.fP0=RigToMomentum(rigidity);};
72			void SetMomentum(Double_t momentum) {fprim.fP0=momentum; };
73
74			void SetDirection(Double_t theta, Double_t phi) {fprim.fTHETA=theta; fprim.fPHI=phi; };
75			void SetMomentum(Double_t px, Double_t py, Double_t pz);
76
77			void SetGood(Bool_t isgood) {fprim.fGOOD=isgood; };
78
79			// gen methods
80
81			void GenPosition(Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax){
82	pam-rm2	1.5	SetPosition(frandom->Uniform(xmin,xmax),frandom->Uniform(ymin,ymax),frandom->Uniform(zmin,zmax)); }
83
84	nikolas	1.1	void GenDirection(Double_t thetamin, Double_t thetamax, Double_t phimin, Double_t phimax){
85	pam-rm2	1.5	SetDirection(ftheta->GetRandom(thetamin, thetamax), frandom->Uniform(phimin,phimax));
86			}
87	nikolas	1.1	//flat spectra generator
88			void GenSpe(Double_t PEmin, Double_t PEmax, Bool_t isEnergy=kFALSE);
89			//power law spectra, gamma - differential spectral index
90			void GenSpe(Double_t PEmin, Double_t PEmax, Double_t gamma, Bool_t isEnergy=kFALSE);
91	pizzolot	1.6	void GenSpe_Flat(Double_t PEmin, Double_t PEmax, Double_t gamma, Bool_t isEnergy=kFALSE);
92			void GenSpe_3par(Double_t PEmin, Double_t PEmax, Double_t a, Double_t b, Double_t c);
93			void GenSphericalPhiThe(); // cecilia // flusso istropo // sets phi the
94			void GenSphPhiThe(Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax,
95			Double_t zmin, Double_t zmax); // flusso isotropo entro S2 S3
96			// sets position and phi the
97
98	nikolas	1.1
99			// get methods
100			Int_t GetParticle(){ return fprim.fPDG; };
101			void GetPositon(TVector3 & v){ v.SetXYZ(fprim.fX0,fprim.fY0,fprim.fZ0); };
102			void GetPosition(Double_t X0, Double_t Y0,Double_t Z0)
103			{X0=fprim.fX0; Y0=fprim.fY0; Z0=fprim.fZ0;};
104
105			Double_t GetKinEnergy() { return MomentumToKinE(fprim.fP0); };
106			Double_t GetRigidity() { return MomentumToRig(fprim.fP0); };
107			Double_t GetMomentum() { return fprim.fP0; };
108
109			void GetDirection(TVector2 & v) {v.Set(fprim.fTHETA,fprim.fPHI);}
110
111			Bool_t Getgood(){ return fprim.fGOOD; };
112
113	pam-rm2	1.5	//initialize random
114			void SetRandom(TRandom* random){
115			frandom = random;
116			}
117
118	nikolas	1.1	//work with collection of primaries
119
120			void Register(){
121			PamRootManager::Instance()->
122			Register("PRIM","TClonesArray", &fprimColl);
123			}
124
125			void ClearPrimCol(){
126			fevno=0;
127			(*fprimColl).Clear();
128			}
129
130			private:
131			// methods
132
133			Double_t MomentumToKinE(Double_t P0);
134			Double_t KinEToMomentum(Double_t E0);
135			Double_t MomentumToRig(Double_t P0) { return P0/fcharge; };
136			Double_t RigToMomentum(Double_t R0){ return R0*fcharge; };
137	pizzolot	1.6	Double_t function3par(Double_t xx, Double_t a, Double_t b, Double_t c){return 5.pow((xx + b exp(-c * sqrt(xx))),-a);};
138	nikolas	1.1
139			// data members
140			TVirtualMCStack* fStack;
141			Int_t fevno;
142			PamVMCPrimary fprim;
143			Double_t fmass;
144			Double_t fcharge;
145			TClonesArray* fprimColl;
146	pam-rm2	1.5	TRandom* frandom; // Class is not a owner of this object
147			TF1* ftheta; // To generate sherical distributhin in theta-angle
148	nikolas	1.1
149			ClassDef(PamVMCPrimaryGenerator,1) //PamVMCPrimaryGenerator
150			};
151
152			// inline functions
153
154
155			inline Double_t PamVMCPrimaryGenerator::MomentumToKinE(Double_t P0)
156			{ return Sqrt(P0P0+fmassfmass)-fmass; }
157
158			inline Double_t PamVMCPrimaryGenerator::KinEToMomentum(Double_t E0)
159			{ return Sqrt(E0E0+2.E0*fmass); }
160
161			#endif //PAMVMC_PRIMARY_GENERATOR_H
162