PxConstraint.h

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#ifndef __PXCONSTRAINT_H
#define __PXCONSTRAINT_H

#include "jbltools/kinfit/ParticleConstraint.h"

class ParticleFitObject;

//  Class PxConstraint:

class PxConstraint : public ParticleConstraint {
  public:
    PxConstraint ();
    virtual ~PxConstraint();
    virtual double getValue() const = 0;
    
    virtual void getDerivatives (int idim,                  
                                 double der[]               
                                ) const = 0;
    virtual void add1stDerivativesToMatrix (int idim,       
                                            double *M       
                                           ) const;
    virtual void add2ndDerivativesToMatrix (int idim,       
                                            double *M,      
                                            double lambda   
                                            ) const;
  
  protected:

};

#endif // __PXCONSTRAINT_H

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