/data/refman/pasoursint/CMSSW_5_3_3/src/TrackingTools/GsfTools/interface/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);

}

#endif