G4VErrorLimitProcess.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.          *
// ********************************************************************
//
//
//
//
// Class description:
//
// Base class for classes limiting the step.
 
// History:
//
// Created:     P.Arce          May 2007
// --------------------------------------------------------------------
 
#ifndef G4VErrorLimitProcess_hh
#define G4VErrorLimitProcess_hh
 
#include "G4ios.hh"
#include "globals.hh"
#include "G4VDiscreteProcess.hh"
#include "G4PhysicsTable.hh"
#include "G4PhysicsLogVector.hh"
#include "G4ElementTable.hh"
#include "G4Gamma.hh"
#include "G4Electron.hh"
#include "G4Step.hh"
 
class G4ErrorLimitsMessenger;
 
//-----------------------------------------------------------------
 
class G4VErrorLimitProcess : public G4VDiscreteProcess
{
 public:  // with description
  G4VErrorLimitProcess(const G4String& processName);
 
  ~G4VErrorLimitProcess();
 
  virtual G4double PostStepGetPhysicalInteractionLength(
    const G4Track& track, G4double previousStepSize,
    G4ForceCondition* condition) = 0;
  // Returns the step limit
 
  virtual G4double GetMeanFreePath(const class G4Track&, G4double,
                                   enum G4ForceCondition*);
  // Returns kInfinity
 
  virtual G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&);
  // No action but retrieving the G4VParticleChange
  // extracted from the G4Track
 
  // Get and Set methods
 
  G4double GetStepLimit() const { return theStepLimit; }
  void SetStepLimit(G4double val) { theStepLimit = val; }
 
 protected:
  G4double theStepLimit;   // limit set by the user
  G4double theStepLength;  // step length extracted from the user step limit,
                           // with the algorithms of each concrete class
 
  G4VParticleChange theParticleChange;
};
 
#endif