RDFIntegrator.h

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// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//

#ifndef BALL_STRUCTURE_RDFINTEGRATOR_H
#define BALL_STRUCTURE_RDFINTEGRATOR_H

#ifndef BALL_STRUCTURE_RADIALDISTRIBUTIONFUNCTION_H
# include <BALL/STRUCTURE/radialDistributionFunction.h>
#endif

namespace BALL
{
  class BALL_EXPORT RDFIntegrator
  {
    public:

    BALL_CREATE(RDFIntegrator)

    

    RDFIntegrator()
      ;

    RDFIntegrator(const RDFIntegrator& integrator)
      ;

    RDFIntegrator(const RadialDistributionFunction& rdf)
      ;

    virtual ~RDFIntegrator()
      ;



    const RDFIntegrator& operator = (const RDFIntegrator& integrator)
      ;

    virtual void clear()
      ;



    bool operator == (const RDFIntegrator& integrator) const
      ;

    virtual bool isValid() const 
      ;



    void setRDF(const RadialDistributionFunction& rdf)
      ;

    const RadialDistributionFunction& getRDF() const
      ;

    virtual double operator () (double x) const
      ;


    protected:

    //_ The radial distribution function which is to be integrated.
    RadialDistributionFunction rdf_;

    /*_ A flag indicating validity of this instance. A sole RDFIntegrator
        instance cannot be valid, because it does not have any information
        about the potential for which it should be the integrating means.
        This flag is provided for derived classes.
    */
    bool valid_;

  };
   
}
#endif // BALL_STRUCTURE_RDFINTEGRATOR_H