CbmKFTrack.cxx

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#include "CbmKFTrack.h"
 
#include "CbmKFMath.h"
#include "CbmStsTrack.h"
#include "FairTrackParam.h"
#include "TDatabasePDG.h"
#include "TMath.h"
#include "TParticlePDG.h"
 
CbmKFTrack::CbmKFTrack()
    : fMass(0)
    , fChi2(0)
    , fIsElectron(kFALSE)
    , fNDF(0)
    , fHits()
{
    for (Int_t i = 0; i < 6; i++)
        fT[i] = 0.;
    for (Int_t i = 0; i < 15; i++)
        fC[i] = 0.;
}
 
void CbmKFTrack::SetTrack(CbmKFTrackInterface& track)
{
    for (Int_t i = 0; i < 6; i++)
        fT[i] = track.GetTrack()[i];
    for (Int_t i = 0; i < 15; i++)
        fC[i] = track.GetCovMatrix()[i];
    fMass = track.GetMass();
    fIsElectron = track.IsElectron();
    fChi2 = track.GetRefChi2();
    fNDF = track.GetRefNDF();
}
 
void CbmKFTrack::SetTrackParam(FairTrackParam& track)
{
    CbmKFMath::CopyTrackParam2TC(&track, fT, fC);
}
 
void CbmKFTrack::SetStsTrack(CbmStsTrack& track, bool first)
{
    SetPID(track.GetPidHypo());
    SetTrackParam(first ? *track.GetParamFirst() : *track.GetParamLast());
    GetRefChi2() = track.GetChi2();
    GetRefNDF() = track.GetNDF();
}
 
void CbmKFTrack::GetTrackParam(FairTrackParam& track)
{
    CbmKFMath::CopyTC2TrackParam(&track, fT, fC);
}
 
void CbmKFTrack::GetStsTrack(CbmStsTrack& track, bool first)
{
    GetTrackParam(first ? *track.GetParamFirst() : *track.GetParamLast());
    track.SetChi2(GetRefChi2());
    track.SetNDF(GetRefNDF());
}
 
void CbmKFTrack::SetPID(Int_t pidHypo)
{
    TParticlePDG* particlePDG = TDatabasePDG::Instance()->GetParticle(pidHypo);
    fMass = (particlePDG) ? particlePDG->Mass() : 0.13957;
    fIsElectron = (TMath::Abs(pidHypo) == 11);
}