IActsToTrkConverterTool.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ACTSGEOMETRYINTERFACES_IActsToTrkConverterTool_H
#define ACTSGEOMETRYINTERFACES_IActsToTrkConverterTool_H
 
// ATHENA
#include <memory>
 
#include "GaudiKernel/IAlgTool.h"
#include "GaudiKernel/IInterface.h"
#include "StoreGate/WriteHandle.h"
#include "TrkParameters/TrackParameters.h"  //typedef, cannot fwd declare
#include "TrkTrack/TrackCollection.h"
#include "xAODMeasurementBase/UncalibratedMeasurement.h"  //typedef, cannot fwd declare
#include "xAODTracking/TrackJacobianContainer.h"
#include "xAODTracking/TrackMeasurementContainer.h"
#include "xAODTracking/TrackParametersContainer.h"
#include "xAODTracking/TrackStateContainer.h"
#include "Acts/EventData/BoundTrackParameters.hpp"
#include "Acts/EventData/VectorTrackContainer.hpp"
#include "ActsEvent/TrackContainer.h"
 
namespace Trk {
  class Surface;
  class Track;
  class MeasurementBase;
  class PrepRawData;
}  // namespace Trk
 
namespace Acts {
class Surface;
class SourceLink;
}
 
namespace ActsTrk::detail {
    enum class SourceLinkType;
}
 
 
namespace ActsTrk {
class IActsToTrkConverterTool : virtual public IAlgTool {
 public:
  DeclareInterfaceID(IActsToTrkConverterTool, 1, 0);
  virtual const Trk::Surface& actsSurfaceToTrkSurface(const EventContext& ctx, const Acts::Surface& actsSurface) const = 0;
  virtual const Acts::Surface& trkSurfaceToActsSurface(const Trk::Surface& atlasSurface) const = 0;
 
  virtual std::vector<Acts::SourceLink> trkTrackToSourceLinks(const Trk::Track& track) const = 0;
  virtual void toSourceLinks(const std::vector<const Trk::MeasurementBase*>& measSet,
                             std::vector<Acts::SourceLink>& links) const = 0;
  virtual void toSourceLinks(const std::vector<const Trk::PrepRawData*>& prdSet,
                             std::vector<Acts::SourceLink>& links) const = 0;                           
  virtual const Acts::BoundTrackParameters trkTrackParametersToActsParameters(
                                            const Trk::TrackParameters& atlasParameter, 
                                            const Acts::GeometryContext& gctx, 
                                            Trk::ParticleHypothesis hypothesis = Trk::pion) const = 0;

  virtual std::unique_ptr<Trk::TrackParameters> 
    actsTrackParametersToTrkParameters(const EventContext& ctx,
                                       const Acts::BoundTrackParameters& actsParameter,
                                       const Acts::GeometryContext& gctx) const = 0;
  using TrackFitResult_t = Acts::Result<ActsTrk::MutableTrackContainer::TrackProxy, std::error_code>;
  virtual std::unique_ptr<Trk::Track> convertFitResult(const EventContext& ctx,
                                                       ActsTrk::MutableTrackContainer& tracks,
                                                       TrackFitResult_t& fitResult,
                                                       const Trk::TrackInfo::TrackFitter fitAuthor,
                                                       const detail::SourceLinkType slType) const = 0;
 
  virtual void trkTrackCollectionToActsTrackContainer(
      ActsTrk::MutableTrackContainer &tc,
      const TrackCollection& trackColl,
      const Acts::GeometryContext& gctx) const = 0;
 
};
}  // namespace ActsTrk
 
#endif