BDSFieldEMZero.hh

/* 
Beam Delivery Simulation (BDSIM) Copyright (C) Royal Holloway, 
University of London 2001 - 2022.
 
This file is part of BDSIM.
 
BDSIM is free software: you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published 
by the Free Software Foundation version 3 of the License.
 
BDSIM is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with BDSIM.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef BDSFIELDEMZERO_H
#define BDSFIELDEMZERO_H
 
#include "BDSFieldEM.hh"
 
#include "globals.hh" // geant4 types / globals
#include "G4ThreeVector.hh"
 
#include <utility>
 
class BDSFieldEMZero: public BDSFieldEM
{
public:
  BDSFieldEMZero(){finiteStrength = false;}
  
  virtual ~BDSFieldEMZero(){;}
 
  virtual std::pair<G4ThreeVector,G4ThreeVector> GetField(const G4ThreeVector& /*position*/,
                                 const G4double       /*t*/ = 0) const
  {return std::make_pair(G4ThreeVector(0,0,0),G4ThreeVector(0,0,0));}
};
 
#endif