1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4ParticleChangeForMSC.hh,v 1.9 2006/06/29 21:14:25 gunter Exp $ |
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28 | // GEANT4 tag $ $ |
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29 | // |
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30 | // |
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31 | // ------------------------------------------------------------ |
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32 | // GEANT 4 class header file |
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33 | // |
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34 | // |
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35 | // Class Description |
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36 | // This class is special "Particle Change" for Multiple Scattering process |
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37 | // |
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38 | // ------------------------------------------------------------ |
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39 | // Implemented for the new scheme 23 Mar. 1998 H.Kurahige |
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40 | // Add Get/SetMomentumDirectionChange 6 Feb. 1999 H.Kurashige |
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41 | // Update for model variant of msc 16 Jan 2004 V.Ivanchenko |
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42 | // |
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43 | // ------------------------------------------------------------- |
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44 | #ifndef G4ParticleChangeForMSC_h |
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45 | #define G4ParticleChangeForMSC_h 1 |
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46 | |
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47 | #include "globals.hh" |
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48 | #include "G4ios.hh" |
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49 | #include "G4ThreeVector.hh" |
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50 | #include "G4ThreeVector.hh" |
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51 | class G4DynamicParticle; |
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52 | #include "G4VParticleChange.hh" |
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53 | |
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54 | class G4ParticleChangeForMSC: public G4VParticleChange |
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55 | { |
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56 | public: |
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57 | // default constructor |
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58 | G4ParticleChangeForMSC(); |
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59 | |
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60 | // destructor |
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61 | virtual ~G4ParticleChangeForMSC(); |
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62 | |
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63 | protected: |
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64 | // hide copy constructor and assignment operaor as protected |
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65 | G4ParticleChangeForMSC(const G4ParticleChangeForMSC &right); |
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66 | G4ParticleChangeForMSC & operator=(const G4ParticleChangeForMSC &right); |
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67 | |
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68 | |
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69 | public: // with description |
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70 | // ---------------------------------------------------- |
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71 | // --- the following methods are for updating G4Step ----- |
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72 | // Return the pointer to the G4Step after updating the Step information |
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73 | // by using final state information of the track given by a physics |
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74 | // process |
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75 | virtual G4Step* UpdateStepForAlongStep(G4Step* Step); |
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76 | virtual G4Step* UpdateStepForPostStep(G4Step* Step); |
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77 | // A physics process gives the final state of the particle |
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78 | // based on information of G4Track (or equivalently the PreStepPoint) |
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79 | |
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80 | virtual void Initialize(const G4Track&); |
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81 | // Initialize all propoerties by using G4Track information |
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82 | |
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83 | // ---------------------------------------------------- |
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84 | //--- methods to keep information of the final state-- |
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85 | // IMPORTANT NOTE: Although the name of the class and methods are |
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86 | // "Change", what it stores (and returns in get) are the "FINAL" |
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87 | // values of the Position, Momentum, etc. |
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88 | |
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89 | void ProposeMomentumDirection(const G4ThreeVector& Pfinal); |
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90 | void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz); |
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91 | const G4ThreeVector* GetMomentumDirection() const; |
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92 | const G4ThreeVector* GetProposedMomentumDirection() const; |
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93 | void SetProposedMomentumDirection(const G4ThreeVector& Pfinal); |
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94 | // Get/Set theMomentumDirectionChange vector: it is the final momentum direction. |
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95 | |
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96 | const G4ThreeVector* GetPosition() const; |
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97 | void ProposePosition(const G4ThreeVector& finalPosition); |
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98 | const G4ThreeVector* GetProposedPosition() const; |
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99 | void SetProposedPosition(const G4ThreeVector& finalPosition); |
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100 | // Get/Set the final position of the current particle. |
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101 | |
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102 | public: |
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103 | virtual void DumpInfo() const; |
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104 | // for Debug |
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105 | virtual G4bool CheckIt(const G4Track&); |
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106 | |
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107 | private: |
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108 | G4ThreeVector theMomentumDirection; |
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109 | // It is the vector containing the final momentum direction |
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110 | // after the invoked process. The application of the change |
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111 | // of the momentum direction of the particle is not Done here. |
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112 | // The responsibility to apply the change is up the entity |
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113 | // which invoked the process. |
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114 | |
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115 | G4ThreeVector thePosition; |
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116 | // The changed (final) position of a given particle. |
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117 | |
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118 | }; |
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119 | |
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120 | #include "G4ParticleChangeForMSC.icc" |
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121 | #endif |
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122 | |
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