MnParabolaPoint.h

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// @(#)root/minuit2:$Id$
// Authors: M. Winkler, F. James, L. Moneta, A. Zsenei   2003-2005
 
/**********************************************************************
 *                                                                    *
 * Copyright (c) 2005 LCG ROOT Math team,  CERN/PH-SFT                *
 *                                                                    *
 **********************************************************************/
 
#ifndef ROOT_Minuit2_MnParabolaPoint
#define ROOT_Minuit2_MnParabolaPoint
 
namespace ROOT {
 
namespace Minuit2 {
 
/**
 
A point of a parabola.
 
<p>
 
????!!!! in reality it is just a general point in two dimensional space,
there is nothing that would indicate, that it belongs to a parabola.
This class defines simply an (x,y) pair!!!!
 
@author Fred James and Matthias Winkler; comments added by Andras Zsenei
and Lorenzo Moneta
 
@ingroup Minuit
 
\todo Should it be called MnParabolaPoint or just Point?
 
 */
 
class MnParabolaPoint {
 
public:
   /**
 
   Initializes the point with its coordinates.
 
   @param x the x (first) coordinate of the point.
   @param y the y (second) coordinate of the point.
 
   */
 
   MnParabolaPoint(double x, double y) : fX(x), fY(y) {}
 
   ~MnParabolaPoint() {}
 
   /**
 
   Accessor to the x (first) coordinate.
 
   @return the x (first) coordinate of the point.
 
   */
 
   double X() const { return fX; }
 
   /**
 
   Accessor to the y (second) coordinate.
 
   @return the y (second) coordinate of the point.
 
   */
 
   double Y() const { return fY; }
 
private:
   double fX;
   double fY;
};
 
} // namespace Minuit2
 
} // namespace ROOT
 
#endif // ROOT_Minuit2_MnParabolaPoint