// HitXYPlane2Generator.h

#ifndef HitXYPlane2Generator_H
#define HitXYPlane2Generator_H

// Generator for ClusXYPlane2 objects.

#include "trfbase/HitGenerator.h"
#include "trfbase/HitVector.h"
#include "SurfXYPlane.h"

namespace trf {

class HitXYPlane2Generator : public HitGenerator {

private:  // attributes

  // the surface
  SurfXYPlane _sxyp;


  // the error matrix for the measurement (v,z)
  HitError _dhm;

private:  // methods

  // hide assignment operator
  HitXYPlane2Generator& operator=(const HitXYPlane2Generator& rhs);

  // output stream
  void ostr(std::ostream& stream) const;

public:

  // Constructor from plane position , measurement position, error.
  HitXYPlane2Generator(double dist, double phi, const HitError& dhm);

  // Constructor from above plus random number seed.
  HitXYPlane2Generator(double dist, double phi, 
                       const HitError& dhm, long iseed);

  // Copy constructor.
  HitXYPlane2Generator(const HitXYPlane2Generator& rhs);

  // Destructor.
  ~HitXYPlane2Generator();

  // Return the surface.
  const Surface& get_surface() const { return _sxyp; };

  // Generate a new cluster.
  // Caller must delete.
  // Return 0 for failure.
  Cluster* new_cluster(const VTrack& trv);

};

}  // end namespace trf

#endif