MeasurementOnPlane.h

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/* Copyright 2008-2010, Technische Universitaet Muenchen,
   Authors: Christian Hoeppner & Sebastian Neubert & Johannes Rauch
 
   This file is part of GENFIT.
 
   GENFIT is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published
   by the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
 
   GENFIT is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public License
   along with GENFIT.  If not, see <http://www.gnu.org/licenses/>.
*/

 
#ifndef genfit_MeasurementOnPlane_h
#define genfit_MeasurementOnPlane_h
 
#include "MeasuredStateOnPlane.h"
#include "AbsHMatrix.h"
 
#include <TMatrixD.h>
 
#include <cmath>
#include <memory>
 
 
namespace genfit {

class MeasurementOnPlane : public MeasuredStateOnPlane {
 
 public:
 
  MeasurementOnPlane(const AbsTrackRep* rep = nullptr) :
    MeasuredStateOnPlane(rep), hMatrix_(nullptr), weight_(0) {}
  MeasurementOnPlane(const TVectorD& state, const TMatrixDSym& cov, SharedPlanePtr plane, const AbsTrackRep* rep, const AbsHMatrix* hMatrix, double weight = 1.) :
    MeasuredStateOnPlane(state, cov, plane, rep), hMatrix_(hMatrix), weight_(weight) {}

  MeasurementOnPlane(const MeasurementOnPlane& other);
  MeasurementOnPlane& operator=(MeasurementOnPlane other);
  void swap(MeasurementOnPlane& other);
 
  virtual ~MeasurementOnPlane() {}
 
  const AbsHMatrix* getHMatrix() const {return hMatrix_.get();}
  double getWeight() const {return weight_;}
 
  TMatrixDSym getWeightedCov() {return weight_*cov_;}
 
  void setHMatrix(const AbsHMatrix* hMatrix) {hMatrix_.reset(hMatrix);}
  void setWeight(double weight) {weight_ = fmax(weight, 1.E-10);}
 
  void Print(Option_t* option = "") const override ;
 
 private:
  TVector3 getPos() const;
  TVector3 getMom() const;
  TVector3 getDir() const;
  void getPosMom(TVector3& pos, TVector3& mom) const;
  void getPosDir(TVector3& pos, TVector3& dir) const;
  TVectorD get6DState() const;
  double getMomMag() const;
  int getPDG() const;
  double getCharge() const;
  double getQop() const;
  double getMass() const;
  double getTime() const;
 
  void setPosMom(const TVector3& pos, const TVector3& mom);
  void setPosMom(const TVectorD& state6);
  void setChargeSign(double charge);
  void setQop(double qop);
  void setTime(double time);
 
 
 protected:
 
  std::unique_ptr<const AbsHMatrix> hMatrix_; // Ownership
  double weight_;
 
 public:
  ClassDefOverride(MeasurementOnPlane,1)
 
};
 
} /* End of namespace   */
 
#endif //  _MeasurementOnPlane_h