// @(#)root/hist:$Id$ // Author: Rene Brun 23/08/95 /************************************************************************* * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. * * All rights reserved. * * * * For the licensing terms see $ROOTSYS/LICENSE. * * For the list of contributors see $ROOTSYS/README/CREDITS. * *************************************************************************/ // ---------------------------------- F2.h #ifndef ROOT_TF2 #define ROOT_TF2 ////////////////////////////////////////////////////////////////////////// // // // TF2 // // // // The Parametric 2-D function // // // ////////////////////////////////////////////////////////////////////////// #ifndef ROOT_TF1 #include "TF1.h" #endif #ifndef ROOT_TArrayD #include "TArrayD.h" #endif class TF2 : public TF1 { protected: Double_t fYmin; //Lower bound for the range in y Double_t fYmax; //Upper bound for the range in y Int_t fNpy; //Number of points along y used for the graphical representation TArrayD fContour; //Array to display contour levels public: TF2(); TF2(const char *name, const char *formula, Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1); TF2(const char *name, void *fcn, Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Int_t npar=0); #ifndef __CINT__ TF2(const char *name, Double_t (*fcn)(Double_t *, Double_t *), Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Int_t npar=0); TF2(const char *name, Double_t (*fcn)(const Double_t *, const Double_t *), Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Int_t npar=0); #endif // constructor using a functor TF2(const char *name, ROOT::Math::ParamFunctor f, Double_t xmin = 0, Double_t xmax = 1, Double_t ymin = 0, Double_t ymax = 1, Int_t npar = 0); // Template constructors from a pointer to any C++ class of type PtrObj with a specific member function of type // MemFn. template TF2(const char *name, const PtrObj& p, MemFn memFn, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Int_t npar, const char * c1, const char * c2) : TF1(name,p,memFn,xmin,xmax,npar,c1,c2), fYmin(ymin), fYmax(ymax), fNpy(30), fContour(0) { fNpx = 30; fNdim = 2; } // Template constructors from any C++ callable object, defining the operator() (double * , double *) // and returning a double. template TF2(const char *name, Func f, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Int_t npar, const char * tmp ) : TF1(name,f,xmin,xmax,npar,tmp), fYmin(ymin), fYmax(ymax), fNpy(30), fContour(0) { fNpx = 30; fNdim = 2; } // constructor used by CINT TF2(const char *name, void *ptr, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Int_t npar, const char *className ); TF2(const char *name, void *ptr, void *,Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Int_t npar, const char *className, const char *methodName = 0); TF2(const TF2 &f2); TF2 &operator=(const TF2& rhs); virtual ~TF2(); virtual void Copy(TObject &f2) const; virtual Int_t DistancetoPrimitive(Int_t px, Int_t py); virtual void Draw(Option_t *option=""); virtual TF1 *DrawCopy(Option_t *option="") const; virtual TObject *DrawDerivative(Option_t * ="al") {return 0;} virtual TObject *DrawIntegral(Option_t * ="al") {return 0;} virtual void DrawF2(const char *formula, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Option_t *option=""); virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py); virtual Int_t GetContour(Double_t *levels=0); virtual Double_t GetContourLevel(Int_t level) const; Int_t GetNpy() const {return fNpy;} virtual char *GetObjectInfo(Int_t px, Int_t py) const; Double_t GetRandom(); Double_t GetRandom(Double_t xmin, Double_t xmax); virtual void GetRandom2(Double_t &xrandom, Double_t &yrandom); virtual void GetRange(Double_t &xmin, Double_t &xmax) const { TF1::GetRange(xmin, xmax); } virtual void GetRange(Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) const; virtual void GetRange(Double_t &xmin, Double_t &ymin, Double_t &zmin, Double_t &xmax, Double_t &ymax, Double_t &zmax) const; virtual Double_t GetSave(const Double_t *x); virtual void GetMinimumXY(Double_t &x, Double_t &y); virtual Double_t GetYmin() const {return fYmin;} virtual Double_t GetYmax() const {return fYmax;} virtual Double_t Integral(Double_t a, Double_t b, const Double_t *params=0, Double_t epsil=0.000001) {return TF1::Integral(a,b,params,epsil);} virtual Double_t Integral(Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsil=0.000001); virtual Double_t Integral(Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsil=0.000001) {return TF1::Integral(ax,bx,ay,by,az,bz,epsil);} virtual Bool_t IsInside(const Double_t *x) const; virtual TH1 *CreateHistogram(); virtual void Paint(Option_t *option=""); virtual void Save(Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax); virtual void SavePrimitive(ostream &out, Option_t *option = ""); virtual void SetNpy(Int_t npy=100); // *MENU* virtual void SetContour(Int_t nlevels=20, const Double_t *levels=0); virtual void SetContourLevel(Int_t level, Double_t value); virtual void SetRange(Double_t xmin, Double_t xmax); virtual void SetRange(Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax); // *MENU* virtual void SetRange(Double_t xmin, Double_t ymin, Double_t zmin, Double_t xmax, Double_t ymax, Double_t zmax); //Moments virtual Double_t Moment2(Double_t nx, Double_t ax, Double_t bx, Double_t ny, Double_t ay, Double_t by, Double_t epsilon=0.000001); virtual Double_t CentralMoment2(Double_t nx, Double_t ax, Double_t bx, Double_t ny, Double_t ay, Double_t by, Double_t epsilon=0.000001); virtual Double_t Mean2X(Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) {return Moment2(1,ax,bx,0,ay,by,epsilon);} virtual Double_t Mean2Y(Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) {return Moment2(0,ax,bx,1,ay,by,epsilon);} virtual Double_t Variance2X(Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) {return CentralMoment2(2,ax,bx,0,ay,by,epsilon);} virtual Double_t Variance2Y(Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) {return CentralMoment2(0,ax,bx,2,ay,by,epsilon);} virtual Double_t Covariance2XY(Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) {return CentralMoment2(1,ax,bx,1,ay,by,epsilon);} ClassDef(TF2,4) //The Parametric 2-D function }; inline void TF2::SetRange(Double_t xmin, Double_t xmax) { TF1::SetRange(xmin, xmax); } inline void TF2::SetRange(Double_t xmin, Double_t ymin, Double_t, Double_t xmax, Double_t ymax, Double_t) { SetRange(xmin, ymin, xmax, ymax); } #endif