//-----------------------------------------------------------------------------
// Vertex
// Jan
//-----------------------------------------------------------------------------

#ifndef TVERTEX_H
#define TVERTEX_H

#include <iostream.h>
#include <fstream.h>
#include <stdlib.h>
#include <stdio.h>
#include <TVector3.h>
#include "TSiTrack.h"

class TVertex{

protected:

  TVector3 vert;
  
public:
  TVertex(){;}              // constructor
  virtual ~TVertex(){;}     // destructor
  
  void SetRPhiZ(double inR, double inPhi, double inZ);
  TVector3 GetVector(){return vert;}

  // >>>> return shortest vector between vertex and track <<<<
  TVector3 GetDisplacementVector( TSiTrack* );

  // >>>> return shortest vector between two tracks <<<<
  TVector3 GetDisplacementVector( TSiTrack*,  TSiTrack* );

};

#endif