// @(#)root/hist:$Id: TGraph2D.h,v 1.00
// Author: Olivier Couet
/*************************************************************************
* 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. *
*************************************************************************/
#ifndef ROOT_TGraph2D
#define ROOT_TGraph2D
//////////////////////////////////////////////////////////////////////////
// //
// TGraph2D //
// //
// Graph 2D graphics class. //
// //
//////////////////////////////////////////////////////////////////////////
#include "TNamed.h"
#include "TAttLine.h"
#include "TAttFill.h"
#include "TAttMarker.h"
class TAxis;
class TList;
class TF2;
class TH1;
class TH2;
class TH2D;
class TView;
class TDirectory;
class TVirtualHistPainter;
#include "TFitResultPtr.h"
class TGraph2D : public TNamed, public TAttLine, public TAttFill, public TAttMarker {
protected:
Int_t fNpoints; ///< Number of points in the data set
Int_t fNpx; ///< Number of bins along X in fHistogram
Int_t fNpy; ///< Number of bins along Y in fHistogram
Int_t fMaxIter; ///< Maximum number of iterations to find Delaunay triangles
Int_t fSize; ///<!Real size of fX, fY and fZ
Double_t *fX; ///<[fNpoints]
Double_t *fY; ///<[fNpoints] Data set to be plotted
Double_t *fZ; ///<[fNpoints]
Double_t fMinimum; ///< Minimum value for plotting along z
Double_t fMaximum; ///< Maximum value for plotting along z
Double_t fMargin; ///< Extra space (in %) around interpolated area for fHistogram
Double_t fZout; ///< fHistogram bin height for points lying outside the interpolated area
TList *fFunctions; ///< Pointer to list of functions (fits and user)
TH2D *fHistogram; ///<!2D histogram of z values linearly interpolated on the triangles
TObject *fDelaunay; ///<! Pointer to Delaunay interpolator object
TDirectory *fDirectory; ///<!Pointer to directory holding this 2D graph
TVirtualHistPainter *fPainter; ///<!Pointer to histogram painter
void Build(Int_t n);
private:
Bool_t fUserHisto; // True when SetHistogram has been called
enum EStatusBits {
kOldInterpolation = BIT(15)
};
void CreateInterpolator(Bool_t oldInterp);
protected:
public:
TGraph2D();
TGraph2D(Int_t n);
TGraph2D(Int_t n, Int_t *x, Int_t *y, Int_t *z);
TGraph2D(Int_t n, Float_t *x, Float_t *y, Float_t *z);
TGraph2D(Int_t n, Double_t *x, Double_t *y, Double_t *z);
TGraph2D(TH2 *h2);
TGraph2D(const char *name, const char *title, Int_t n, Double_t *x, Double_t *y, Double_t *z);
TGraph2D(const char *filename, const char *format="%lg %lg %lg", Option_t *option="");
TGraph2D(const TGraph2D &);
virtual ~TGraph2D();
TGraph2D& operator=(const TGraph2D &);
virtual void Browse(TBrowser *);
virtual void Clear(Option_t *option="");
virtual void DirectoryAutoAdd(TDirectory *);
Int_t DistancetoPrimitive(Int_t px, Int_t py);
virtual void Draw(Option_t *option="P0");
void ExecuteEvent(Int_t event, Int_t px, Int_t py);
virtual TObject *FindObject(const char *name) const;
virtual TObject *FindObject(const TObject *obj) const;
virtual TFitResultPtr Fit(const char *formula ,Option_t *option="" ,Option_t *goption=""); // *MENU*
virtual TFitResultPtr Fit(TF2 *f2 ,Option_t *option="" ,Option_t *goption=""); // *MENU*
virtual void FitPanel(); // *MENU*
TList *GetContourList(Double_t contour);
TDirectory *GetDirectory() const {return fDirectory;}
Int_t GetNpx() const {return fNpx;}
Int_t GetNpy() const {return fNpy;}
TH2D *GetHistogram(Option_t *option="");
TList *GetListOfFunctions() const { return fFunctions; }
virtual Double_t GetErrorX(Int_t bin) const;
virtual Double_t GetErrorY(Int_t bin) const;
virtual Double_t GetErrorZ(Int_t bin) const;
Double_t GetMargin() const {return fMargin;}
Double_t GetMaximum() const {return fMaximum;};
Double_t GetMinimum() const {return fMinimum;};
TAxis *GetXaxis() const ;
TAxis *GetYaxis() const ;
TAxis *GetZaxis() const ;
Int_t GetN() const {return fNpoints;}
Double_t *GetX() const {return fX;}
Double_t *GetY() const {return fY;}
Double_t *GetZ() const {return fZ;}
virtual Double_t *GetEX() const {return 0;}
virtual Double_t *GetEY() const {return 0;}
virtual Double_t *GetEZ() const {return 0;}
Double_t GetXmax() const;
Double_t GetXmin() const;
Double_t GetYmax() const;
Double_t GetYmin() const;
Double_t GetZmax() const;
Double_t GetZmin() const;
virtual Double_t GetXmaxE() const {return GetXmax();};
virtual Double_t GetXminE() const {return GetXmin();};
virtual Double_t GetYmaxE() const {return GetYmax();};
virtual Double_t GetYminE() const {return GetYmin();};
virtual Double_t GetZmaxE() const {return GetZmax();};
virtual Double_t GetZminE() const {return GetZmin();};
virtual Int_t GetPoint(Int_t i, Double_t &x, Double_t &y, Double_t &z) const;
Double_t Interpolate(Double_t x, Double_t y);
void Paint(Option_t *option="");
virtual void Print(Option_t *chopt="") const;
TH1 *Project(Option_t *option="x") const; // *MENU*
Int_t RemovePoint(Int_t ipoint); // *MENU*
virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
virtual void Set(Int_t n);
virtual void SetDirectory(TDirectory *dir);
virtual void SetHistogram(TH2 *h);
void SetMargin(Double_t m=0.1); // *MENU*
void SetMarginBinsContent(Double_t z=0.); // *MENU*
void SetMaximum(Double_t maximum=-1111); // *MENU*
void SetMinimum(Double_t minimum=-1111); // *MENU*
void SetMaxIter(Int_t n=100000) {fMaxIter = n;} // *MENU*
virtual void SetName(const char *name); // *MENU*
virtual void SetNameTitle(const char *name, const char *title);
void SetNpx(Int_t npx=40); // *MENU*
void SetNpy(Int_t npx=40); // *MENU*
virtual void SetPoint(Int_t point, Double_t x, Double_t y, Double_t z); // *MENU*
virtual void SetTitle(const char *title=""); // *MENU*
ClassDef(TGraph2D,1) //Set of n x[n],y[n],z[n] points with 3-d graphics including Delaunay triangulation
};
#endif