MultiGaussianStateTransform.h

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#ifndef MultiGaussianStateTransform_H
#define MultiGaussianStateTransform_H

#include "DataFormats/GsfTrackReco/interface/GsfTrack.h"
#include "DataFormats/GsfTrackReco/interface/GsfTrackExtra.h"

#include "TrackingTools/GsfTools/interface/MultiGaussianState.h"

#include <vector>

class MultiGaussianState1D;
class TrajectoryStateOnSurface;

namespace MultiGaussianStateTransform {

  enum { N = reco::GsfTrackExtra::dimension };

  MultiGaussianState<N> innerMultiState(const reco::GsfTrack& tk);
  MultiGaussianState<N> outerMultiState(const reco::GsfTrack& tk);
  MultiGaussianState1D innerMultiState1D(const reco::GsfTrack& tk, unsigned int index);
  MultiGaussianState1D outerMultiState1D(const reco::GsfTrack& tk, unsigned int index);

  MultiGaussianState<N> multiState(const std::vector<MultiGaussianState<N>::Vector>&,
                                   const std::vector<MultiGaussianState<N>::Matrix>&,
                                   const std::vector<double>&);
  MultiGaussianState1D multiState1D(const std::vector<MultiGaussianState<N>::Vector>&,
                                    const std::vector<MultiGaussianState<N>::Matrix>&,
                                    const std::vector<double>&,
                                    unsigned int);

  MultiGaussianState<5> multiState(const TrajectoryStateOnSurface);
  MultiGaussianState1D multiState1D(const TrajectoryStateOnSurface, unsigned int);
  TrajectoryStateOnSurface tsosFromSingleState(const SingleGaussianState<5>&, const TrajectoryStateOnSurface);

}  // namespace MultiGaussianStateTransform

#endif