TrajectoryStateTransform.h

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#ifndef TrajectoryStateTransform_H
#define TrajectoryStateTransform_H

#include "DataFormats/TrajectoryState/interface/PTrajectoryStateOnDet.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/L1TrackTrigger/interface/TTTrack.h"
#include "DataFormats/L1TrackTrigger/interface/TTTypes.h"

class TrajectoryStateOnSurface;
class FreeTrajectoryState;
class TrackingGeometry;
class Surface;
class MagneticField;

namespace trajectoryStateTransform {

  PTrajectoryStateOnDet persistentState(const TrajectoryStateOnSurface& ts, unsigned int detid);

  TrajectoryStateOnSurface transientState(const PTrajectoryStateOnDet& ts,
                                          const Surface* surface,
                                          const MagneticField* field);

  FreeTrajectoryState initialFreeState(const reco::Track& tk, const MagneticField* field, bool withErr = true);
  FreeTrajectoryState initialFreeStateL1TTrack(const TTTrack<Ref_Phase2TrackerDigi_>& tk,
                                               const MagneticField* field,
                                               bool withErr = false);

  FreeTrajectoryState innerFreeState(const reco::Track& tk, const MagneticField* field, bool withErr = true);
  FreeTrajectoryState outerFreeState(const reco::Track& tk, const MagneticField* field, bool withErr = true);

  TrajectoryStateOnSurface innerStateOnSurface(const reco::Track& tk,
                                               const TrackingGeometry& geom,
                                               const MagneticField* field,
                                               bool withErr = true);
  TrajectoryStateOnSurface outerStateOnSurface(const reco::Track& tk,
                                               const TrackingGeometry& geom,
                                               const MagneticField* field,
                                               bool withErr = true);

}  // namespace trajectoryStateTransform

// backward compatibility
struct TrajectoryStateTransform {};

#endif