CbmKFVertexInterface.cxx

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/* Copyright (C) 2006-2020 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
   SPDX-License-Identifier: GPL-3.0-only
   Authors: Sergey Gorbunov, Denis Bertini [committer] */
 
#include "CbmKFVertexInterface.h"
 
#include "CbmVertex.h"
#include "TMatrixTSym.h"
 
ClassImp(CbmKFVertexInterface)
 
  static Double_t gTempD[11];
static Int_t gTempI[2];
 
Double_t& CbmKFVertexInterface::GetRefX() { return gTempD[0]; }
Double_t& CbmKFVertexInterface::GetRefY() { return gTempD[1]; }
Double_t& CbmKFVertexInterface::GetRefZ() { return gTempD[2]; }
Double_t* CbmKFVertexInterface::GetCovMatrix() { return gTempD + 3; }
Double_t& CbmKFVertexInterface::GetRefChi2() { return gTempD[9]; }
Int_t& CbmKFVertexInterface::GetRefNDF() { return gTempI[0]; }
Int_t& CbmKFVertexInterface::GetRefNTracks() { return gTempI[1]; }
 
void CbmKFVertexInterface::SetVertex(CbmVertex& v)
{
  GetRefX()       = v.GetX();
  GetRefY()       = v.GetY();
  GetRefZ()       = v.GetZ();
  GetRefChi2()    = v.GetChi2();
  GetRefNDF()     = v.GetNDF();
  GetRefNTracks() = v.GetNTracks();
  TMatrixFSym tmp(3);
  v.CovMatrix(tmp);
  for (int i = 0, k = 0; i < 3; i++) {
    for (int j = 0; j <= i; j++, k++) {
      GetCovMatrix()[k] = tmp(i, j);
    }
  }
}
 
void CbmKFVertexInterface::GetVertex(CbmVertex& v)
{
  TMatrixFSym covMat(3);
  for (int i = 0, k = 0; i < 3; i++) {
    for (int j = 0; j <= i; j++, k++) {
      covMat(i, j) = GetCovMatrix()[k];
    }
  }
  v.SetVertex(GetRefX(), GetRefY(), GetRefZ(), GetRefChi2(), GetRefNDF(), GetRefNTracks(), covMat);
}