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geant4/source/event/include/G4SPSRandomGenerator.hh
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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
///////////////////////////////////////////////////////////////////////////////
//
// MODULE: G4SPSRandomGenerator.hh
//
// Version: 1.0
// Date: 5/02/04
// Author: Fan Lei
// Organisation: QinetiQ ltd.
// Customer: ESA/ESTEC
//
///////////////////////////////////////////////////////////////////////////////
//
// CHANGE HISTORY
// --------------
//
// 26/10/2004 F Lei
// Created separated the theta, phi generators for position distributions.
//
// Version 1.0, 05/02/2004, Fan Lei, Created.
// Based on the G4GeneralParticleSource class in Geant4 v6.0
//
///////////////////////////////////////////////////////////////////////////////
//
// Class Description:
//
// Special random number generator used by G4GeneralParticleSource to allow
// biasing applied at the lowest level for all distributions.
//
///////////////////////////////////////////////////////////////////////////////
//
// MEMBER FUNCTIONS
// ----------------
//
// G4SPSRandomGenerator ()
// Constructor: Initializes variables
//
// ~G4SPSRandomGenerator ()
// Destructor:
//
// void SetXBias(G4ThreeVector)
// Allows the user to re-distribute the random
// numbers used to generate x co-ordinates.
//
// void SetYBias(G4ThreeVector)
// Allows the user to re-distribute the random
// numbers used to generate y co-ordinates.
//
// void SetZBias(G4ThreeVector)
// Allows the user to re-distribute the random
// numbers used to generate z co-ordinates.
//
// void SetThetaBias(G4ThreeVector)
// Allows the user to re-distribute the random
// numbers used to generate values of theta.
//
// void SetPhiBias(G4ThreeVector)
// Allows the user to re-distribute the random
// numbers used to generate values of phi.
//
// void SetPosThetaBias(G4ThreeVector)
// Allows the user to re-distribute the random
// numbers used to generate values of theta for position distribution.
//
// void SetPosPhiBias(G4ThreeVector)
// Allows the user to re-distribute the random
// numbers used to generate values of phi for position distribution.
//
// void SetEnergyBias(G4ThreeVector)
// Allows the user to re-distribute the random
// numbers used to generate the energies.
//
// G4double GenRandX()
// Generates the random number for x, with or without biasing.
//
// G4double GenRandY()
// Generates the random number for y, with or without biasing.
//
// G4double GenRandZ()
// Generates the random number for z, with or without biasing.
//
// G4double GenRandTheta()
// Generates the random number for theta, with or without biasing.
//
// G4double GenRandPhi()
// Generates the random number for phi, with or without biasing.
//
// G4double GenRandEnergy()
// Generates the random number for energy, with or without biasing.
//
// G4double GenRandPosTheta()
// Generates the random number for theta, with or without biasing for position distribution.
//
// G4double GenRandPosPhi()
// Generates the random number for phi, with or without biasing for position distribution.
//
// inline G4double GetBiasWeight()
// Returns the weight change after biasing
//
// void ReSetHist(G4String);
// Re-sets the histogram for user defined distribution
//
// void SetVerbosity(G4int)
// Sets the verbosity level.
//
///////////////////////////////////////////////////////////////////////////////
//
#ifndef G4SPSRandomGenerator_h
#define G4SPSRandomGenerator_h 1
#include "G4PhysicsOrderedFreeVector.hh"
#include "G4DataInterpolation.hh"
class G4SPSRandomGenerator
{
public:
G4SPSRandomGenerator ();
~G4SPSRandomGenerator ();
// static G4SPSRandomGenerator* getInstance ();
// Biasing Methods
void SetXBias(G4ThreeVector);
void SetYBias(G4ThreeVector);
void SetZBias(G4ThreeVector);
void SetThetaBias(G4ThreeVector);
void SetPhiBias(G4ThreeVector);
void SetEnergyBias(G4ThreeVector);
void SetPosThetaBias(G4ThreeVector);
void SetPosPhiBias(G4ThreeVector);
G4double GenRandX();
G4double GenRandY();
G4double GenRandZ();
G4double GenRandTheta();
G4double GenRandPhi();
G4double GenRandEnergy();
G4double GenRandPosTheta();
G4double GenRandPosPhi();
inline void SetIntensityWeight(G4double weight) {bweights[8]=weight;};
inline G4double GetBiasWeight()
{ return bweights[0]*bweights[1]*bweights[2]*bweights[3]*bweights[4]*bweights[5]*bweights[6]*bweights[7]*bweights[8];};
// method to re-set the histograms
void ReSetHist(G4String);
// Set the verbosity level.
void SetVerbosity(G4int a) {verbosityLevel = a; } ;
private:
// static G4SPSRandomGenerator *instance;
G4bool XBias, IPDFXBias;
G4PhysicsOrderedFreeVector XBiasH;
G4PhysicsOrderedFreeVector IPDFXBiasH;
G4bool YBias, IPDFYBias;
G4PhysicsOrderedFreeVector YBiasH;
G4PhysicsOrderedFreeVector IPDFYBiasH;
G4bool ZBias, IPDFZBias;
G4PhysicsOrderedFreeVector ZBiasH;
G4PhysicsOrderedFreeVector IPDFZBiasH;
G4bool ThetaBias, IPDFThetaBias;
G4PhysicsOrderedFreeVector ThetaBiasH;
G4PhysicsOrderedFreeVector IPDFThetaBiasH;
G4bool PhiBias, IPDFPhiBias;
G4PhysicsOrderedFreeVector PhiBiasH;
G4PhysicsOrderedFreeVector IPDFPhiBiasH;
G4bool EnergyBias, IPDFEnergyBias;
G4PhysicsOrderedFreeVector EnergyBiasH;
G4PhysicsOrderedFreeVector IPDFEnergyBiasH;
G4bool PosThetaBias, IPDFPosThetaBias;
G4PhysicsOrderedFreeVector PosThetaBiasH;
G4PhysicsOrderedFreeVector IPDFPosThetaBiasH;
G4bool PosPhiBias, IPDFPosPhiBias;
G4PhysicsOrderedFreeVector PosPhiBiasH;
G4PhysicsOrderedFreeVector IPDFPosPhiBiasH;
G4double bweights[9]; //record x,y,z,theta,phi,energy,posThet,posPhi,intensity weights
// Verbosity
G4int verbosityLevel;
G4PhysicsOrderedFreeVector ZeroPhysVector ; // for re-set only
};
#endif