// HitXYPlane1Generator.h

#ifndef HitXYPlane1Generator_H
#define HitXYPlane1Generator_H

// Generator for ClusXYPlane1 objects.

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

namespace trf {

class HitXYPlane1Generator : public HitGenerator {

private:  // attributes

  // the surface
  SurfXYPlane _sxyp;

  // the v axis weight
  double _wv;

  // the z axis weight
  double _wz;

  // the error (standard deviation) for the measurement avz = wv*v + wz*z
  double _davz;

private:  // methods

  // hide assignment operator
  HitXYPlane1Generator& operator=(const HitXYPlane1Generator& rhs);

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

public:

  // Constructor from plane position, mixing and measurement sigma.
  HitXYPlane1Generator(double dist, double phi, 
                       double wv,   double wz, 
                       double davz);

  // Constructor from above plus random number seed.
  HitXYPlane1Generator(double dist, double phi, 
                       double wv,   double wz,
                       double davz, long iseed);

  // Copy constructor.
  HitXYPlane1Generator(const HitXYPlane1Generator& rhs);

  // Destructor.
  ~HitXYPlane1Generator();

  // 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