// HitZPlane1Generator.h

#ifndef HitZPlane1Generator_H
#define HitZPlane1Generator_H

// Generator for ClusZPlane1 objects.

#include "trfbase/HitGenerator.h"
#include "SurfZPlane.h"

namespace trf {

class HitZPlane1Generator : public HitGenerator {

private:  // attributes

  // the surface
  SurfZPlane _szp;

  // the x axis weight
  double _wx;

  // the y axis weight
  double _wy;

  // the error (standard deviation) for the measurement axy = wx*x + wy*y
  double _daxy;

private:  // methods

  // hide assignment operator
  HitZPlane1Generator& operator=(const HitZPlane1Generator& rhs);

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

public:

  // Constructor from plane position, mixing and measurement sigma.
  HitZPlane1Generator(double zpos, double wx, double wy,double daxy);

  // Constructor from above plus random number seed.
  HitZPlane1Generator(double zpos, double wx, double wy,
                      double daxy, long iseed);

  // Copy constructor.
  HitZPlane1Generator(const HitZPlane1Generator& rhs);

  // Destructor.
  ~HitZPlane1Generator();

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

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

};

}  // end namespace trf

#endif