Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/global/management/src/G4PhysicsLogVector.cc

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 25 //
 26 // G4PhysicsLogVector class implementation
 27 //
 28 // Authors:
 29 // - 02 Dec. 1995, G.Cosmo: Structure created based on object model
 30 // - 03 Mar. 1996, K.Amako: Implemented the 1st version
 31 // Revisions:
 32 // - 11 Nov. 2000, H.Kurashige : Use STL vector for dataVector and binVector
 33 // --------------------------------------------------------------------
 34 
 35 #include "G4PhysicsLogVector.hh"
 36 #include "G4Exp.hh"
 37 #include "G4Log.hh"
 38 
 39 // --------------------------------------------------------------------
 40 G4PhysicsLogVector::G4PhysicsLogVector(G4bool spline)
 41   : G4PhysicsVector(spline)
 42 {
 43   type = T_G4PhysicsLogVector;
 44 }
 45 
 46 // --------------------------------------------------------------------
 47 G4PhysicsLogVector::G4PhysicsLogVector(G4double Emin, G4double Emax,
 48                                        std::size_t Nbin, G4bool spline)
 49   : G4PhysicsVector(spline)
 50 {
 51   numberOfNodes = Nbin + 1;
 52   if (Nbin < 2 || Emin >= Emax || Emin <= 0.0)
 53   {
 54     G4ExceptionDescription ed;
 55     ed << "G4PhysicsLogVector with wrong parameters: theNbin= " << Nbin
 56        << " Emin= " << Emin << " Emax= " << Emax;
 57     G4Exception("G4PhysicsLogVector::G4PhysicsLogVector()", "glob03",
 58                 FatalException, ed, "Nbins should be > 1 and Emax > Emin > 0");
 59   }
 60   if (numberOfNodes < 3)
 61   {
 62     numberOfNodes = 3;
 63   }
 64   type = T_G4PhysicsLogVector;
 65 
 66   binVector.resize(numberOfNodes);
 67   dataVector.resize(numberOfNodes, 0.0);
 68   binVector[0] = Emin;
 69   binVector[numberOfNodes - 1] = Emax;
 70   Initialise();
 71 
 72   for (std::size_t i = 1; i <= idxmax; ++i)
 73   {
 74     binVector[i] = edgeMin*G4Exp(i / invdBin);
 75   }
 76 }
 77 
 78 // --------------------------------------------------------------------
 79 void G4PhysicsLogVector::Initialise()
 80 {
 81   idxmax  = numberOfNodes - 2;
 82   edgeMin = binVector[0];
 83   edgeMax = binVector[idxmax + 1];
 84   invdBin = (idxmax + 1) / G4Log(edgeMax/edgeMin);
 85   logemin = G4Log(edgeMin);
 86 }
 87 
 88 // --------------------------------------------------------------------
 89