source: trunk/source/processes/electromagnetic/muons/include/G4ErrorEnergyLoss.hh

//
// ********************************************************************
// * 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:
//
// Description: Continuous Process to calculate energy loss without 
//              fluctuations through G4EnergyLossForExtrapolator

// History:
//   Created:     2007-05-12
//   Author:      Pedro Arce
//
//   Modified:
//

#ifndef G4ErrorEnergyLoss_hh
#define G4ErrorEnergyLoss_hh

#include "globals.hh"
#include "G4VContinuousProcess.hh"
#include "G4ProcessType.hh"

class G4EnergyLossForExtrapolator;

class G4ErrorEnergyLoss : public G4VContinuousProcess
{

public: 

  G4ErrorEnergyLoss(const G4String& processName = "G4ErrorEnergyLoss",
                    G4ProcessType type = fElectromagnetic);

  virtual ~G4ErrorEnergyLoss(); 


  G4bool IsApplicable(const G4ParticleDefinition& aParticleType);
  // Returns true -> 'is applicable', for all charged particles.

  G4double GetContinuousStepLimit(const G4Track& aTrack,
                                  G4double     ,
                                  G4double currentMinimumStep,
                                  G4double& );
  // Returns DBL_MAX as continuous step limit

  G4VParticleChange* AlongStepDoIt(const G4Track& aTrack, 
                                   const G4Step&  aStep);
  // This is the method implementing the energy loss process.

  // Get and Set methods
  G4double GetStepLimit() const { return theStepLimit; }
  void SetStepLimit( G4double val ) { theStepLimit = val; }

private:

  void InstantiateEforExtrapolator();
  // Create the G4EnergyLossForExtrapolator

private:
  G4EnergyLossForExtrapolator* theELossForExtrapolator;

  G4double theStepLimit;
};

////////////////////
// Inline methods
////////////////////

inline 
G4bool G4ErrorEnergyLoss::IsApplicable(const G4ParticleDefinition& aParticleType)
{
   return (aParticleType.GetPDGCharge() != 0);
}

#endif /* G4ErrorEnergyLoss_hh */