ColinearityKinematicConstraint.h

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#ifndef ColinearityKinematicConstraint_H
#define ColinearityKinematicConstraint_H
 
#include "RecoVertex/KinematicFitPrimitives/interface/MultiTrackKinematicConstraint.h"
#include "RecoVertex/KinematicFitPrimitives/interface/KinematicState.h"
#include "DataFormats/CLHEP/interface/AlgebraicObjects.h"
 
class ColinearityKinematicConstraint : public MultiTrackKinematicConstraint {
public:
  enum ConstraintDim { Phi, PhiTheta };
 
  ColinearityKinematicConstraint(ConstraintDim dim = Phi);
 
  AlgebraicVector value(const std::vector<KinematicState>& states, const GlobalPoint& point) const override;
 
  AlgebraicMatrix parametersDerivative(const std::vector<KinematicState>& states,
                                       const GlobalPoint& point) const override;
 
  AlgebraicMatrix positionDerivative(const std::vector<KinematicState>& states,
                                     const GlobalPoint& point) const override;
 
  int numberOfEquations() const override { return size; }
 
  ColinearityKinematicConstraint* clone() const override { return new ColinearityKinematicConstraint(*this); }
 
private:
  ConstraintDim dimension;
  unsigned int size;
};
#endif