/data/refman/pasoursint/CMSSW_6_1_2_SLHC2/src/TrackingTools/KalmanUpdators/interface/Chi2Switching1DEstimator.h

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#ifndef Chi2Switching1DEstimator_H_
#define Chi2Switching1DEstimator_H_

#include "TrackingTools/DetLayers/interface/MeasurementEstimator.h"
#include "TrackingTools/KalmanUpdators/interface/Chi2MeasurementEstimator.h"
#include "TrackingTools/KalmanUpdators/interface/Chi2Strip1DEstimator.h"
#include "DataFormats/GeometryCommonDetAlgo/interface/DeepCopyPointerByClone.h"

class Chi2Switching1DEstimator : public Chi2MeasurementEstimatorBase {

public:

  explicit Chi2Switching1DEstimator(double aMaxChi2, double nSigma = 3.) : 
    Chi2MeasurementEstimatorBase(aMaxChi2,nSigma),
    theLocalEstimator(new Chi2MeasurementEstimator(aMaxChi2,nSigma)),
    theStripEstimator(new Chi2Strip1DEstimator(aMaxChi2,nSigma)) {};

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

  virtual Chi2Switching1DEstimator* clone() const 
  {
    return new Chi2Switching1DEstimator(*this);
  }

private:
  const Chi2MeasurementEstimator& localEstimator() const {
    return *theLocalEstimator;
  }
  const Chi2Strip1DEstimator& stripEstimator() const {
    return *theStripEstimator;
  }

private:
  DeepCopyPointerByClone<const Chi2MeasurementEstimator> theLocalEstimator;
  DeepCopyPointerByClone<const Chi2Strip1DEstimator>     theStripEstimator;

};
#endif //Chi2Switching1DEstimator_H_