Geant4 Cross Reference

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Geant4/examples/extended/eventgenerator/HepMC/HepMCEx02/src/H02Field.cc

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 25 //
 26 /// \file eventgenerator/HepMC/HepMCEx02/src/H02Field.cc
 27 /// \brief Implementation of the H02Field class
 28 //
 29 //   H02Field.hh
 30 //
 31 #include "H02Field.hh"
 32 
 33 #include "G4SystemOfUnits.hh"
 34 
 35 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 36 void H02Field::GetFieldValue(const G4double Point[3], G4double* Bfield) const
 37 {
 38   const G4double Bz = 3.0 * tesla;
 39   const G4double rmax_sq = sqr(1. * m);
 40   const G4double zmax = 1. * m;
 41 
 42   Bfield[0] = 0.;
 43   Bfield[1] = 0.;
 44   if (std::abs(Point[2]) < zmax && (sqr(Point[0]) + sqr(Point[1])) < rmax_sq) {
 45     Bfield[2] = Bz;
 46   }
 47   else {
 48     Bfield[2] = 0.;
 49   }
 50 }
 51