TF3
class description - source file - inheritance tree
class TF3 : public TF2
public:
TF3 TF3()
TF3 TF3(char* name, char* formula, Float_t xmin = 0, Float_t xmax = 1, Float_t ymin = 0, Float_t ymax = 1, Float_t zmin = 0, Float_t zmax = 1)
TF3 TF3(char* name, void* fcn, Float_t xmin = 0, Float_t xmax = 1, Float_t ymin = 0, Float_t ymax = 1, Float_t zmin = 0, Float_t zmax = 1, Int_t npar = 0)
TF3 TF3(char* name, Double_t (*)(Double_t*, Double_t*) fcn, Float_t xmin = 0, Float_t xmax = 1, Float_t ymin = 0, Float_t ymax = 1, Float_t zmin = 0, Float_t zmax = 1, Int_t npar = 0)
TF3 TF3(TF3& f3)
virtual void ~TF3()
TClass* Class()
virtual void Copy(TObject& f3)
virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
virtual void Draw(Option_t* option)
virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
Int_t GetNpz()
virtual void GetRandom3(Float_t& xrandom, Float_t& yrandom, Float_t& zrandom)
virtual void GetRange(Float_t& xmin, Float_t& xmax)
virtual void GetRange(Float_t& xmin, Float_t& ymin, Float_t& xmax, Float_t& ymax)
virtual void GetRange(Float_t& xmin, Float_t& ymin, Float_t& zmin, Float_t& xmax, Float_t& ymax, Float_t& zmax)
virtual Float_t GetZmax()
virtual Float_t GetZmin()
virtual Double_t Integral(Float_t a, Float_t b, Double_t* params = 0, Float_t epsilon = 0.000001)
virtual Double_t Integral(Float_t ax, Float_t bx, Float_t ay, Float_t by, Float_t epsilon = 0.000001)
virtual Double_t Integral(Float_t ax, Float_t bx, Float_t ay, Float_t by, Float_t az, Float_t bz, Float_t epsilon = 0.000001)
virtual TClass* IsA()
virtual void Paint(Option_t* option)
virtual void SetNpz(Int_t npz = 30)
virtual void SetRange(Float_t xmin, Float_t xmax)
virtual void SetRange(Float_t xmin, Float_t ymin, Float_t xmax, Float_t ymax)
virtual void SetRange(Float_t xmin, Float_t ymin, Float_t zmin, Float_t xmax, Float_t ymax, Float_t zmax)
virtual void ShowMembers(TMemberInspector& insp, char* parent)
virtual void Streamer(TBuffer& b)
protected:
Float_t fZmin Lower bound for the range in z
Float_t fZmax Upper bound for the range in z
Int_t fNpz Number of points along z used for the graphical representation
a 3-Dim function with parameters
TF3(): TF2()
*-*-*-*-*-*-*-*-*-*-*F3 default constructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-* ======================
TF3(const char *name,const char *formula, Float_t xmin, Float_t xmax, Float_t ymin, Float_t ymax, Float_t zmin, Float_t zmax)
:TF2(name,formula,xmin,xmax,ymin,ymax)
*-*-*-*-*-*-*F3 constructor using a formula definition*-*-*-*-*-*-*-*-*-*-*
*-* =========================================
*-*
*-* See TFormula constructor for explanation of the formula syntax.
*-*
*-*
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
TF3(const char *name,void *fcn, Float_t xmin, Float_t xmax, Float_t ymin, Float_t ymax, Float_t zmin, Float_t zmax, Int_t npar)
:TF2(name,fcn,xmin,xmax,ymin,ymax,npar)
*-*-*-*-*-*-*F3 constructor using a pointer to an interpreted function*-*-*
*-* =========================================================
*-*
*-* npar is the number of free parameters used by the function
*-*
*-* Creates a function of type C between xmin and xmax and ymin,ymax.
*-* The function is defined with npar parameters
*-* fcn must be a function of type:
*-* Double_t fcn(Double_t *x, Double_t *params)
*-*
*-* This constructor is called for functions of type C by CINT.
*-*
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
TF3(const char *name,Double_t (*fcn)(Double_t *, Double_t *), Float_t xmin, Float_t xmax, Float_t ymin, Float_t ymax, Float_t zmin, Float_t zmax, Int_t npar)
:TF2(name,fcn,xmin,xmax,ymin,ymax,npar)
*-*-*-*-*-*-*F3 constructor using a pointer to real function*-*-*-*-*-*-*-*
*-* ===============================================
*-*
*-* npar is the number of free parameters used by the function
*-*
*-* For example, for a 3-dim function with 3 parameters, the user function
*-* looks like:
*-* Double_t fun1(Double_t *x, Double_t *par)
*-* return par[0]*x[2] + par[1]*exp(par[2]*x[0]*x[1]);
*-*
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
~TF3()
*-*-*-*-*-*-*-*-*-*-*F3 default destructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-* =====================
TF3(const TF3 &f3)
void Copy(TObject &obj)
*-*-*-*-*-*-*-*-*-*-*Copy this F3 to a new F3*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-* ========================
Int_t DistancetoPrimitive(Int_t px, Int_t py)
*-*-*-*-*-*-*-*-*-*-*Compute distance from point px,py to a function*-*-*-*-*
*-* ===============================================
*-* Compute the closest distance of approach from point px,py to this function.
*-* The distance is computed in pixels units.
*-*
*-* Algorithm:
*-*
*-*
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
void Draw(Option_t *option)
*-*-*-*-*-*-*-*-*-*-*Draw this function with its current attributes*-*-*-*-*
*-* ==============================================
void ExecuteEvent(Int_t event, Int_t px, Int_t py)
*-*-*-*-*-*-*-*-*-*-*Execute action corresponding to one event*-*-*-*
*-* =========================================
*-* This member function is called when a F3 is clicked with the locator
*-*
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
void GetRandom3(Float_t &xrandom, Float_t &yrandom, Float_t &zrandom)
*-*-*-*-*-*Return 3 random numbers following this function shape*-*-*-*-*-*
*-* =====================================================
*-*
*-* The distribution contained in this TF3 function is integrated
*-* over the cell contents.
*-* It is normalized to 1.
*-* Getting the three random numbers implies:
*-* - Generating a random number between 0 and 1 (say r1)
*-* - Look in which cell in the normalized integral r1 corresponds to
*-* - make a linear interpolation in the returned cell
*-*
void GetRange(Float_t &xmin, Float_t &ymin, Float_t &zmin, Float_t &xmax, Float_t &ymax, Float_t &zmax)
*-*-*-*-*-*-*-*-*-*-*Return range of function*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-* ========================
Double_t Integral(Float_t ax, Float_t bx, Float_t ay, Float_t by, Float_t az, Float_t bz, Float_t epsilon)
Return Integral of a 3d function in range [ax,bx],[ay,by],[az,bz]
void Paint(Option_t *)
*-*-*-*-*-*-*-*-*Paint this 2-D function with its current attributes*-*-*-*-*
*-* ===================================================
void SetNpz(Int_t npz)
*-*-*-*-*-*-*-*Set the number of points used to draw the function*-*-*-*-*-*
*-* ==================================================
void SetRange(Float_t xmin, Float_t ymin, Float_t zmin, Float_t xmax, Float_t ymax, Float_t zmax)
*-*-*-*-*-*Initialize the upper and lower bounds to draw the function*-*-*-*
*-* ==========================================================
Inline Functions
Int_t GetNpz()
void GetRange(Float_t& xmin, Float_t& ymin, Float_t& xmax, Float_t& ymax)
void GetRange(Float_t& xmin, Float_t& ymin, Float_t& zmin, Float_t& xmax, Float_t& ymax, Float_t& zmax)
Float_t GetZmin()
Float_t GetZmax()
Double_t Integral(Float_t ax, Float_t bx, Float_t ay, Float_t by, Float_t epsilon = 0.000001)
Double_t Integral(Float_t ax, Float_t bx, Float_t ay, Float_t by, Float_t az, Float_t bz, Float_t epsilon = 0.000001)
void SetRange(Float_t xmin, Float_t ymin, Float_t xmax, Float_t ymax)
void SetRange(Float_t xmin, Float_t ymin, Float_t zmin, Float_t xmax, Float_t ymax, Float_t zmax)
TClass* Class()
TClass* IsA()
void ShowMembers(TMemberInspector& insp, char* parent)
void Streamer(TBuffer& b)
Author: Rene Brun 27/10/95
Last update: 2.22/10 25/07/99 21.43.00 by Rene Brun
Copyright (c) 1995-1999, The ROOT System, All rights reserved. *
ROOT page - Class index - Top of the page
This page has been automatically generated. If you have any comments or suggestions about the page layout send a mail to ROOT support, or contact the developers with any questions or problems regarding ROOT.