G4ParallelWorldProcess.hh

Go to the documentation of this file.

//
// ********************************************************************
// * 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.          *
// ********************************************************************
//
//
// $Id$
// GEANT4 tag $Name: geant4-09-04-ref-00 $
//
// 
//---------------------------------------------------------------
//
//  G4ParallelWorldProcess.hh
//
//  Description:
//    This procss takes a parallel world and limits a step
//   on the boundaries of volumes in the parallel world.
//    It invokes sensitive detectors assigned in the parallel
//   world.
//    It switches a material (and a region if defined) in the
//   assigned parallel world over the material (and the region)
//   in the mass world.
//
//---------------------------------------------------------------
 
 
#ifndef G4ParallelWorldProcess_h
#define G4ParallelWorldProcess_h 1
 
#include "globals.hh"
class G4Step;
class G4StepPoint;
class G4Navigator;
class G4TransportationManager;
class G4PathFinder;
class G4VTouchable;
class G4VPhysicalVolume;
class G4ParticleChange;
#include "G4VProcess.hh"
#include "G4FieldTrack.hh"
#include "G4TouchableHandle.hh"
#include "G4MultiNavigator.hh"
 
//------------------------------------------
//
//        G4ParallelWorldProcess class
//
//------------------------------------------
 
 
// Class Description:
 
class G4ParallelWorldProcess : public G4VProcess
{
public: // with description
 
  //------------------------
  // Constructor/Destructor
  //------------------------
  
  G4ParallelWorldProcess(const G4String& processName = "ParaWorld",
                 G4ProcessType theType = fParameterisation);
  virtual ~G4ParallelWorldProcess();
  
  //--------------------------------------------------------------
  // Set Paralle World
  //--------------------------------------------------------------
 
  void SetParallelWorld(G4String parallelWorldName);
  void SetParallelWorld(G4VPhysicalVolume* parallelWorld);
 
  //--------------------------------------------------------------
  //     Process interface
  //--------------------------------------------------------------
 
  void StartTracking(G4Track*);
  
  //------------------------------------------------------------------------
  // GetPhysicalInteractionLength() and DoIt() methods for AtRest 
  //------------------------------------------------------------------------
  
  G4double AtRestGetPhysicalInteractionLength(const G4Track&,G4ForceCondition*);
  G4VParticleChange* AtRestDoIt(const G4Track&,const G4Step&);
 
  //------------------------------------------------------------------------
  // GetPhysicalInteractionLength() and DoIt() methods for AlongStep 
  //------------------------------------------------------------------------
  
  G4double AlongStepGetPhysicalInteractionLength(
    const G4Track&,G4double,G4double,G4double&,G4GPILSelection*);
  G4VParticleChange* AlongStepDoIt(const G4Track&,const G4Step&);
 
  //-----------------------------------------------------------------------
  // GetPhysicalInteractionLength() and DoIt() methods for PostStep
  //-----------------------------------------------------------------------
  
  G4double PostStepGetPhysicalInteractionLength(
    const G4Track&,G4double,G4ForceCondition*);
  G4VParticleChange* PostStepDoIt(const G4Track&,const G4Step&);
 
  //-----------------------------------------------------------------------
  // Flag for material switching
  //-----------------------------------------------------------------------
 
  inline void SetLayeredMaterialFlag(G4bool flg=true)
  { layeredMaterialFlag = flg; }
  inline G4bool GetLayeredMaterialFlag() const
  { return layeredMaterialFlag; }
 
private:
  void CopyStep(const G4Step & step);
  void SwitchMaterial(G4StepPoint*);
 
public: // with description
  //--------------------------------------------------------------------
  // Returns whether a particular particle type requires AtRest process
  //--------------------------------------------------------------------
  G4bool IsAtRestRequired(G4ParticleDefinition*);
 
private:
  G4Step * fGhostStep;
  G4StepPoint * fGhostPreStepPoint;
  G4StepPoint * fGhostPostStepPoint;
 
  G4VParticleChange aDummyParticleChange;
  G4ParticleChange xParticleChange;
 
  G4TransportationManager* fTransportationManager;
  G4PathFinder*        fPathFinder;
 
  // -------------------------------
  // Navigation in the Ghost World:
  // -------------------------------
  G4String             fGhostWorldName;
  G4VPhysicalVolume*   fGhostWorld;
  G4Navigator*         fGhostNavigator;
  G4int                fNavigatorID;
  G4TouchableHandle    fOldGhostTouchable;
  G4TouchableHandle    fNewGhostTouchable;
  G4FieldTrack         fFieldTrack;
  G4double             fGhostSafety;
  G4bool               fOnBoundary;
 
  //-----------------------------------------------------------------------
  // Flag for material switching
  //-----------------------------------------------------------------------
  G4bool layeredMaterialFlag;
 
  //-----------------------------------------------------------------------
  // Static G4Step object for "Hyper-step"
  //-----------------------------------------------------------------------
public:
  static const G4Step* GetHyperStep();
  static G4int GetHypNavigatorID();
private:
  static G4Step* fpHyperStep;
  static G4int nParallelWorlds;
  static G4int fNavIDHyp;
  G4int iParallelWorld;
};
 
#endif