Chi2SwitchingEstimator.h

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#ifndef Chi2SwitchingEstimator_H_
#define Chi2SwitchingEstimator_H_

#include "TrackingTools/PatternTools/interface/MeasurementEstimator.h"
#include "TrackingTools/KalmanUpdators/interface/Chi2MeasurementEstimator.h"
#include "TrackingTools/KalmanUpdators/interface/Chi2StripEstimator.h"
#include "DataFormats/GeometryCommonDetAlgo/interface/DeepCopyPointerByClone.h"

class Chi2SwitchingEstimator : public Chi2MeasurementEstimatorBase {

public:

  explicit Chi2SwitchingEstimator(double aMaxChi2, double nSigma = 3.) : 
    Chi2MeasurementEstimatorBase(aMaxChi2,nSigma),
    theLocalEstimator(new Chi2MeasurementEstimator(aMaxChi2,nSigma)),
    theStripEstimator(new Chi2StripEstimator(aMaxChi2,nSigma)) {}

  virtual std::pair<bool,double> estimate (const TrajectoryStateOnSurface& aTsos,
                      const TransientTrackingRecHit& aHit) const;

  virtual Chi2SwitchingEstimator* clone() const 
  {
    return new Chi2SwitchingEstimator(*this);
  }

private:
  const Chi2MeasurementEstimator& localEstimator() const {
    return *theLocalEstimator;
  }
  const Chi2StripEstimator& stripEstimator() const {
    return *theStripEstimator;
  }

private:
  DeepCopyPointerByClone<const Chi2MeasurementEstimator> theLocalEstimator;
  DeepCopyPointerByClone<const Chi2StripEstimator>       theStripEstimator;

};
#endif //Chi2SwitchingEstimator_H_