TG4Field.h

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#ifndef TG4_FIELD_H
#define TG4_FIELD_H
 
//-------------------------------------------------
// The Geant4 Virtual Monte Carlo package
// Copyright (C) 2007 - 2014 Ivana Hrivnacova
// All rights reserved.
//
// For the licensing terms see geant4_vmc/LICENSE.
// Contact: root-vmc@cern.ch
//-------------------------------------------------
 
 
#include "TG4FieldParameters.h"
 
#include <G4MagneticField.hh>
#include <globals.hh>
 
class TG4FieldParameters;
 
class G4ChordFinder;
class G4EquationOfMotion;
class G4MagIntegratorStepper;
class G4LogicalVolume;
class G4VIntegrationDriver;
 
class TVirtualMagField;
 
 
class TG4Field
{
 public:
  TG4Field(const TG4FieldParameters& parameters, TVirtualMagField* magField,
    G4LogicalVolume* lv = 0);
  ~TG4Field();
 
  void Update(const TG4FieldParameters& parameters);
 
  // access to field setting
  G4Field* GetG4Field() const;
  G4EquationOfMotion* GetEquation() const;
  G4MagIntegratorStepper* GetStepper() const;
  G4VIntegrationDriver* GetIntegrationDriver() const;
 
 private:
  // methods
  G4Field* CreateG4Field(
    const TG4FieldParameters& parameters, TVirtualMagField* magField);
  G4EquationOfMotion* CreateEquation(EquationType equation);
  G4MagIntegratorStepper* CreateStepper(
    G4EquationOfMotion* equation, StepperType stepper);
  G4VIntegrationDriver* CreateFSALStepperAndDriver(
    G4EquationOfMotion* equation, StepperType stepper, G4double minStep);
 
  // data
  G4Field* fG4Field;
  TVirtualMagField* fVirtualMagField;
  G4LogicalVolume* fLogicalVolume;
  G4EquationOfMotion* fEquation;
  G4MagIntegratorStepper* fStepper;
  G4VIntegrationDriver* fDriver;
  G4ChordFinder* fChordFinder;
};
 
// inline functions
 
inline G4Field* TG4Field::GetG4Field() const
{
  return fG4Field;
}
 
inline G4EquationOfMotion* TG4Field::GetEquation() const
{
  return fEquation;
}
 
inline G4MagIntegratorStepper* TG4Field::GetStepper() const
{
  return fStepper;
}
 
#endif // TG4_FIELD_H