ParticleBuilder.h

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#ifndef RecoTauTag_ImpactParameter_ParticleBuilder_h
#define RecoTauTag_ImpactParameter_ParticleBuilder_h

/* From SimpleFits Package
 * Designed an written by
 * author: Ian M. Nugent
 * Humboldt Foundations
 */

#include "RecoTauTag/ImpactParameter/interface/TrackParticle.h"
#include "RecoTauTag/ImpactParameter/interface/LorentzVectorParticle.h"
#include "TString.h"
#include "TVector3.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/TrackReco/interface/TrackBase.h"
#include "MagneticField/Engine/interface/MagneticField.h"
#include "MagneticField/Records/interface/IdealMagneticFieldRecord.h"
#include "DataFormats/VertexReco/interface/Vertex.h"
#include "DataFormats/VertexReco/interface/VertexFwd.h"
#include "TrackingTools/TransientTrack/interface/TransientTrackBuilder.h"

namespace tauImpactParameter {

  class ParticleBuilder {
  public:
    enum CMSSWPerigee { aCurv = 0, aTheta, aPhi, aTip, aLip };

    ParticleBuilder(){};
    ~ParticleBuilder(){};

    static LorentzVectorParticle createLorentzVectorParticle(const reco::TransientTrack& transTrk,
                                                             const reco::Vertex& V,
                                                             bool fromPerigee,
                                                             bool useTrackHelixPropagation);
    static TrackParticle createTrackParticle(const reco::TransientTrack& transTrk,
                                             const GlobalPoint& p,
                                             bool fromPerigee = true,
                                             bool useTrackHelixPropogation = true);
    static reco::Vertex getVertex(const LorentzVectorParticle& p);

  private:
    static TVectorT<double> convertCMSSWTrackParToSFTrackPar(const TVectorT<double>& inpar);
    static TVectorT<double> convertCMSSWTrackPerigeeToSFTrackPar(const TVectorT<double>& inpar);
  };

}  // namespace tauImpactParameter
#endif