00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // 00027 // $Id: G4VErrorLimitProcess.hh 69766 2013-05-14 14:33:55Z gcosmo $ 00028 // 00029 // 00030 // Class description: 00031 // 00032 // Base class for classes limiting the step. 00033 00034 // History: 00035 // 00036 // Created: P.Arce May 2007 00037 // -------------------------------------------------------------------- 00038 00039 #ifndef G4VErrorLimitProcess_hh 00040 #define G4VErrorLimitProcess_hh 00041 00042 #include "G4ios.hh" 00043 #include "globals.hh" 00044 #include "G4VDiscreteProcess.hh" 00045 #include "G4PhysicsTable.hh" 00046 #include "G4PhysicsLogVector.hh" 00047 #include "G4ElementTable.hh" 00048 #include "G4Gamma.hh" 00049 #include "G4Electron.hh" 00050 #include "G4Step.hh" 00051 00052 class G4ErrorLimitsMessenger; 00053 00054 //----------------------------------------------------------------- 00055 00056 class G4VErrorLimitProcess : public G4VDiscreteProcess 00057 { 00058 00059 public: // with description 00060 00061 G4VErrorLimitProcess(const G4String& processName); 00062 00063 ~G4VErrorLimitProcess(); 00064 00065 virtual G4double 00066 PostStepGetPhysicalInteractionLength( const G4Track& track, 00067 G4double previousStepSize, 00068 G4ForceCondition* condition ) = 0; 00069 // Returns the step limit 00070 00071 virtual G4double GetMeanFreePath(const class G4Track &, G4double, 00072 enum G4ForceCondition *); 00073 // Returns kInfinity 00074 00075 virtual G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step& ); 00076 // No action but retrieving the G4VParticleChange 00077 // extracted from the G4Track 00078 00079 // Get and Set methods 00080 00081 G4double GetStepLimit() const { return theStepLimit; } 00082 void SetStepLimit( G4double val ) { theStepLimit = val; } 00083 00084 protected: 00085 00086 G4double theStepLimit; // limit set by the user 00087 G4double theStepLength; // step length extracted from the user step limit, 00088 // with the algorithms of each concrete class 00089 00090 G4VParticleChange theParticleChange; 00091 }; 00092 00093 #endif