root/Minuit2/MnParabolaPoint.h

0001 // @(#)root/minuit2:$Id$
0002 // Authors: M. Winkler, F. James, L. Moneta, A. Zsenei   2003-2005
0003
0004 /**********************************************************************
0005  *                                                                    *
0006  * Copyright (c) 2005 LCG ROOT Math team,  CERN/PH-SFT                *
0007  *                                                                    *
0008  **********************************************************************/
0009
0010 #ifndef ROOT_Minuit2_MnParabolaPoint
0011 #define ROOT_Minuit2_MnParabolaPoint
0012
0013 namespace ROOT {
0014
0015 namespace Minuit2 {
0016
0017 /**
0018
0019 A point of a parabola.
0020
0021 <p>
0022
0023 ????!!!! in reality it is just a general point in two dimensional space,
0024 there is nothing that would indicate, that it belongs to a parabola.
0025 This class defines simply an (x,y) pair!!!!
0026
0027 @author Fred James and Matthias Winkler; comments added by Andras Zsenei
0028 and Lorenzo Moneta
0029
0030 @ingroup Minuit
0031
0032 \todo Should it be called MnParabolaPoint or just Point?
0033
0034  */
0035
0036 class MnParabolaPoint {
0037
0038 public:
0039    /**
0040
0041    Initializes the point with its coordinates.
0042
0043    @param x the x (first) coordinate of the point.
0044    @param y the y (second) coordinate of the point.
0045
0046    */
0047
0048    MnParabolaPoint(double x, double y) : fX(x), fY(y) {}
0049
0050    /**
0051
0052    Accessor to the x (first) coordinate.
0053
0054    @return the x (first) coordinate of the point.
0055
0056    */
0057
0058    double X() const { return fX; }
0059
0060    /**
0061
0062    Accessor to the y (second) coordinate.
0063
0064    @return the y (second) coordinate of the point.
0065
0066    */
0067
0068    double Y() const { return fY; }
0069
0070 private:
0071    double fX;
0072    double fY;
0073 };
0074
0075 } // namespace Minuit2
0076
0077 } // namespace ROOT
0078
0079 #endif // ROOT_Minuit2_MnParabolaPoint