TrackParticlePerigeeAtBSAssociationTool.cxx

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
#include "TrackParticlePerigeeAtBSAssociationTool.h"
 
#include "Particle/TrackParticle.h"
#include "AthenaKernel/errorcheck.h"
 
namespace D3PD {
 
 
StatusCode TrackParticlePerigeeAtBSAssociationTool::initialize(){
 
  CHECK( Base::initialize() );
 
  ATH_CHECK(m_beamSpotKey.initialize());
 
  // Pick up the TrackToVertex tool
  StatusCode sc = m_trackToVertexTool.retrieve();
  if(sc.isFailure()){
    REPORT_MESSAGE (MSG::ERROR) << "Could not retrieve TrackToVertexTool";
    return StatusCode::FAILURE;
  }
 
  return StatusCode::SUCCESS;
}
 
const Trk::TrackParameters*
TrackParticlePerigeeAtBSAssociationTool::get (const Rec::TrackParticle& track)
{
  // Protect against bad tracks.
  if (track.measuredPerigee()->covariance() && track.measuredPerigee()->covariance()->rows()==0)
    return 0;
  SG::ReadCondHandle<InDet::BeamSpotData> beamSpotHandle { m_beamSpotKey };
  Amg::Vector3D beamSpot(0,0,0);
  beamSpot = beamSpotHandle->beamVtx().position();
 
  return m_trackToVertexTool->perigeeAtVertex(Gaudi::Hive::currentContext(), track, beamSpot).release();
}
 
const Trk::TrackParameters*
TrackParticlePerigeeAtBSAssociationTool::get (const xAOD::TrackParticle& track)
{
  Amg::Vector3D beamSpot(0,0,0);
  SG::ReadCondHandle<InDet::BeamSpotData> beamSpotHandle { m_beamSpotKey };
  beamSpot = beamSpotHandle->beamVtx().position();
 
  return m_trackToVertexTool->perigeeAtVertex(Gaudi::Hive::currentContext(), track, beamSpot).release();
}
 
void TrackParticlePerigeeAtBSAssociationTool::releaseObject (const Trk::TrackParameters* p)
{
  if(p) delete p;
}
 
} // namespace D3PD