TAxis

class TAxis : public TNamed, public TAttAxis

    public:

                      TAxis TAxis()
                      TAxis TAxis(Int_t nbins, Axis_t xmin, Axis_t xmax)
                      TAxis TAxis(Int_t nbins, Axis_t* xbins)
                      TAxis TAxis(TAxis& axis)
               virtual void ~TAxis()
               virtual void CenterTitle(Bool_t center = kTRUE)
                    TClass* Class()
               virtual void Copy(TObject& axis)
              virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
               virtual void Draw(Option_t* option)
               virtual void DrawAxis(Coord_t x1, Coord_t y1, Coord_t x2, Coord_t y2)
               virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
              virtual Int_t FindBin(Axis_t x)
             virtual Axis_t GetBinCenter(Int_t bin)
            virtual Text_t* GetBinLabel(Int_t bin)
             virtual Axis_t GetBinLowEdge(Int_t bin)
             virtual Axis_t GetBinUpEdge(Int_t bin)
             virtual Axis_t GetBinWidth(Int_t bin)
               virtual void GetCenter(Axis_t* center)
                      Int_t GetFirst()
               virtual void GetLabel(Text_t* label)
                      Int_t GetLast()
               virtual void GetLowEdge(Axis_t* edge)
                      Int_t GetNbins()
      virtual const Text_t* GetTitle()
                   TArrayF* GetXbins()
                     Axis_t GetXmax()
                     Axis_t GetXmin()
            virtual TClass* IsA()
               virtual void ls(Option_t* option)
               virtual void Paint(Option_t* option)
               virtual void PaintAxis(Coord_t x1, Coord_t y1, Coord_t x2, Coord_t y2)
               virtual void Print(Option_t* option)
               virtual void Set(Int_t nbins, Axis_t xmin, Axis_t xmax)
               virtual void Set(Int_t nbins, Axis_t* xbins)
               virtual void SetBinLabel(Int_t bin, Text_t* label)
               virtual void SetLabel(Text_t* label)
               virtual void SetLimits(Axis_t xmin, Axis_t xmax)
               virtual void SetRange(Int_t first = 0, Int_t last = 0)
               virtual void ShowMembers(TMemberInspector& insp, char* parent)
               virtual void Streamer(TBuffer& b)
               virtual void UnZoom()

  Data Members
    private:

        Int_t fNbins    Number of bins
       Axis_t fXmin     low edge of first bin
       Axis_t fXmax     upper edge of last bin
      TArrayF fXbins    Bin edges array in X
      Char_t* fXlabels  !Labels associated to axis
        Int_t fFirst    first bin to display
        Int_t fLast     last bin to display

Class Description

 This class manages histogram axis. It is referenced by TH1 and TGraph.
 To make a graphical representation of an histogram axis, this class
 references the TGaxis class.

 TAxis supports axis with fixed or variable bin sizes.
 Labels may be associated to individual bins.

    see examples of various axis representations drawn by class TGaxis.

*-*-*-*-*-*-*-*Axis constructor for axis with fix bin size*-*-*-*-*-*-*-*
*-*            ===========================================

*-*-*-*-*-*-*-*Axis constructor for variable bin size*-*-*-*-*-*-*-*-*-*-*
*-*            ======================================

   if center = kTRUE axis title will be centered
   default is right adjusted

*-*-*-*-*-*-*-*-*-*Copy axis structure to another axis-*-*-*-*-*-*-*-*-*-*-*
*-*                ===================================

*-*-*-*-*-*-*-*-*-*-*Compute distance from point px,py to an axis*-*-*-*-*-*
*-*                  ============================================

*-*-*-*-*-*-*-*-*-*-*-*Draw an axis*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                    ============
  The axis is drawn with the current axis positions, parameters and attributes

*-*-*-*-*-*-*-*-*-*-*-*Draw an axis*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
  The axis is drawn with the specified parameters and the stored attributes

*-*-*-*-*-*-*-*-*-*-*Execute action corresponding to one event*-*-*-*
*-*                  =========================================
  This member function is called when an axis is clicked with the locator

  The axis range is set between the position where the mouse is pressed
  and the position where it is released.
  If the mouse position is outside the current axis range when it is released
  the axis is unzoomed with the corresponding proportions.
  Note that the mouse does not need to be in the pad or even canvas
  when it is released.

*-*-*-*-*-*-*-*-*Find bin number corresponding to abscissa x-*-*-*-*-*-*
*-*              ===========================================

             return first bin on the axis
       - 0 if no range defined

             return last bin on the axis
       - fNbins if no range defined

*-*-*-*-*-*-*-*-*-*-*Return center of bin*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  ====================

*-*-*-*-*-*-*-*-*-*-*Return low edge of bin-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  ======================

*-*-*-*-*-*-*-*-*-*-*Return up edge of bin-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  ======================

*-*-*-*-*-*-*-*-*-*-*Return bin width-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  ================

*-*-*-*-*-*-*-*-*Return an array with the center of all bins-*-*-*-*-*-*-*
*-*              ===========================================

*-*-*-*-*-*-*-*-*Return an array with the lod edge of all bins-*-*-*-*-*-*-*
*-*              =============================================

*-*-*-*-*-*-*-*-*-*Return label associated to bin-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                ==============================

*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

*-*-*-*-*-*-*-*-*Initialize axis with fix bins*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*              =============================

*-*-*-*-*-*-*-*-*Initialize axis with variable bins*-*-*-*-*-*-*-*-*-*-*-*-*
*-*              ==================================

*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*

*-*-*-*-*-*-*-*-*Set label associated to bin-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*              ===========================

          Set the axis limits

          Set the viewing range for the axis from bin first to last

 Stream an object of class TAxis.

 Reset first & last bin to the full range

Inline Functions

                Int_t GetNbins()
        const Text_t* GetTitle()
             TArrayF* GetXbins()
               Axis_t GetXmin()
               Axis_t GetXmax()
              TClass* Class()
              TClass* IsA()
                 void ShowMembers(TMemberInspector& insp, char* parent)