| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // G4PhysicsLogVector <<
27 // 26 //
28 // Class description: << 27 // $Id: G4PhysicsLogVector.hh,v 1.11 2006/06/29 19:02:25 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-08-03-patch-01 $
29 // 29 //
30 // A physics vector which has values of energy << 30 //
31 // and other physics values of a particle in m << 31 //--------------------------------------------------------------------
32 // range of energy, momentum, etc. The scale o << 32 // GEANT 4 class header file
33 // bins is logarithmic. << 33 //
34 << 34 // G4PhysicsLogVector.hh
35 // Authors: << 35 //
36 // - 02 Dec. 1995, G.Cosmo: Structure created << 36 // Class description:
37 // - 03 Mar. 1996, K.Amako: Implemented the 1s << 37 //
38 // Revisions: << 38 // A physics vector which has values of energy-loss, cross-section,
39 // - 11 Nov. 2000, H.Kurashige : Use STL vecto << 39 // and other physics values of a particle in matter in a given
40 // ------------------------------------------- << 40 // range of the energy, momentum, etc. The scale of energy/momentum
41 #ifndef G4PhysicsLogVector_hh << 41 // bins is in logarithmic.
42 #define G4PhysicsLogVector_hh 1 << 42
>> 43 // History:
>> 44 // 02 Dec. 1995, G.Cosmo : Structure created based on object model
>> 45 // 03 Mar. 1996, K.Amako : Implemented the 1st version
>> 46 // 27 Apr. 1996, K.Amako : Cache mechanism added
>> 47 // 01 Jul. 1996, K.Amako : Hidden bin from the user introduced
>> 48 // 26 Sep. 1996, K.Amako : Constructor with only 'bin size' added
>> 49 // 11 Nov. 2000, H.Kurashige : Use STL vector for dataVector and binVector
>> 50 //
>> 51 //--------------------------------------------------------------------
>> 52
>> 53 #ifndef G4PhysicsLogVector_h
>> 54 #define G4PhysicsLogVector_h 1
43 55
44 #include "G4PhysicsVector.hh" <<
45 #include "globals.hh" 56 #include "globals.hh"
>> 57 #include "G4PhysicsVector.hh"
46 58
47 class G4PhysicsLogVector : public G4PhysicsVec << 59 class G4PhysicsLogVector : public G4PhysicsVector
48 { 60 {
49 public: << 61 public:
50 // The vector will be filled from external f << 62
51 explicit G4PhysicsLogVector(G4bool spline = << 63 G4PhysicsLogVector();
>> 64 explicit G4PhysicsLogVector(size_t theNbin);
>> 65 // Constructors
>> 66
52 67
53 // Energies will be computed and filled at c << 68 public: // with description
54 // filled with zeros. Required Nbin > 1 and <<
55 // Use PutValue(..) to fill the data vector <<
56 explicit G4PhysicsLogVector(G4double Emin, G <<
57 G4bool spline = <<
58 69
59 ~G4PhysicsLogVector() override = default; << 70 G4PhysicsLogVector(G4double theEmin, G4double theEmax, size_t theNbin);
>> 71 // Because of logarithmic scale, note that 'theEmin' has to be
>> 72 // greater than zero. No protection exists against this error.
60 73
61 protected: << 74 ~G4PhysicsLogVector();
>> 75 // Destructor
>> 76
>> 77 G4bool Retrieve(std::ifstream& fIn, G4bool ascii);
>> 78 // To retrieve persistent data from file stream.
>> 79
>> 80 protected:
>> 81
>> 82 size_t FindBinLocation(G4double theEnergy) const;
>> 83 // Find bin# in which theEnergy belongs - pure virtual function
>> 84
>> 85 private:
>> 86
>> 87 G4double dBin; // Bin width - useful only for fixed binning
>> 88 G4double baseBin; // Set this in constructor for performance
62 89
63 void Initialise() final; <<
64 }; 90 };
>> 91
>> 92
>> 93 inline
>> 94 size_t G4PhysicsLogVector::FindBinLocation(G4double theEnergy) const
>> 95 {
>> 96 // For G4PhysicsLogVector, FindBinLocation is implemented using
>> 97 // a simple arithmetic calculation.
>> 98 //
>> 99 // Because this is a virtual function, it is accessed through a
>> 100 // pointer to the G4PhyiscsVector object for most usages. In this
>> 101 // case, 'inline' will not be invoked. However, there is a possibility
>> 102 // that the user access to the G4PhysicsLogVector object directly and
>> 103 // not through pointers or references. In this case, the 'inline' will
>> 104 // be invoked. (See R.B.Murray, "C++ Strategies and Tactics", Chap.6.6)
>> 105
>> 106 return size_t( std::log10(theEnergy)/dBin - baseBin );
>> 107 }
65 108
66 #endif 109 #endif
67 110