#ifndef __JPOINT4D__
#define __JPOINT4D__

#include "JGeometry3D/JVertex3D.hh"


/**
 * \author mdejong
 */

namespace JFIT {}
namespace JPP { using namespace JFIT; }

namespace JFIT {

  using JGEOMETRY3D::JVertex3D;
    

  /**
   * Data structure for vertex fit.
   */
  class JPoint4D :
    public JVertex3D
  {
  public:
    /**
     * Default constructor.
     */
    JPoint4D() :
      JVertex3D()
    {}


    /**
     * Constructor
     *
     * \param pos         position
     * \param t           time at position
     */
    JPoint4D(const JVector3D& pos,
             const double     t) :
      JVertex3D(pos, t)
    {}


    /**
     * Constructor
     *
     * \param vertex    vertex
     */
    JPoint4D(const JVertex3D& vertex) :
      JVertex3D(vertex)
    {}


    typedef double JPoint4D::*parameter_type;

    static parameter_type pX() { return &JPoint4D::__x; }
    static parameter_type pY() { return &JPoint4D::__y; }
    static parameter_type pZ() { return &JPoint4D::__z; }
    static parameter_type pT() { return &JPoint4D::__t; }
  };
}
#endif