BDSDrift.cc

/* 
Beam Delivery Simulation (BDSIM) Copyright (C) BDSIM Collaboration, 2001 - 2026.
 
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/>.
*/
#include "BDSAcceleratorComponent.hh"
#include "BDSDrift.hh"
#include "BDSBeamPipe.hh"
#include "BDSBeamPipeFactory.hh"
#include "BDSBeamPipeInfo.hh"
 
#include "globals.hh" // geant4 globals / types
#include "G4Material.hh"
 
BDSDrift::BDSDrift(G4String         nameIn, 
                   G4double         lengthIn,
                   BDSBeamPipeInfo* beamPipeInfoIn):
  BDSAcceleratorComponent(nameIn, lengthIn, 0, "drift", beamPipeInfoIn)
{;}
 
BDSDrift::~BDSDrift()
{;}
 
void BDSDrift::Build()
{
  BDSBeamPipeFactory* factory = BDSBeamPipeFactory::Instance();
  BDSBeamPipe* pipe = factory->CreateBeamPipe(name,
                                              chordLength,
                                              beamPipeInfo);
 
  RegisterDaughter(pipe);
  
  // make the beam pipe container, this object's container
  containerLogicalVolume = pipe->GetContainerLogicalVolume();
  containerSolid         = pipe->GetContainerSolid();
 
  // register vacuum volume (for biasing)
  SetAcceleratorVacuumLogicalVolume(pipe->GetVacuumLogicalVolume());
 
  // update extents
  InheritExtents(pipe);
 
  // update faces
  SetInputFaceNormal(pipe->InputFaceNormal());
  SetOutputFaceNormal(pipe->OutputFaceNormal());
}
 
G4String BDSDrift::Material() const
{
  auto bpMat = GetBeamPipeInfo()->beamPipeMaterial;
  if (bpMat)
    {return bpMat->GetName();}
  else
    {return BDSAcceleratorComponent::Material();} // none
}