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, const Axis_t* xbins)
                    TAxis TAxis(const TAxis& axis)
             virtual void ~TAxis()
             virtual void CenterTitle(Bool_t center = kTRUE)
              const char* ChooseTimeFormat(Double_t axislength = 0) const
           static TClass* Class()
             virtual void Copy(TObject& axis)
             virtual void Delete(Option_t* option)
            virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
         virtual TObject* DrawClone(Option_t* option) const
             virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
            virtual Int_t FindBin(Axis_t x)
            virtual Int_t FindFixBin(Axis_t x) const
           virtual Axis_t GetBinCenter(Int_t bin) const
            virtual char* GetBinLabel(Int_t bin) const
           virtual Axis_t GetBinLowEdge(Int_t bin) const
           virtual Axis_t GetBinUpEdge(Int_t bin) const
           virtual Axis_t GetBinWidth(Int_t bin) const
             virtual void GetCenter(Axis_t* center)
                    Int_t GetFirst() const
             virtual void GetLabel(char* label)
                    Int_t GetLast() const
             virtual void GetLowEdge(Axis_t* edge)
                    Int_t GetNbins() const
         virtual TObject* GetParent() const
           virtual Bool_t GetTimeDisplay() const
      virtual const char* GetTimeFormat() const
      virtual const char* GetTitle() const
                 TArrayD* GetXbins()
                   Axis_t GetXmax() const
                   Axis_t GetXmin() const
          virtual TClass* IsA() const
             virtual void RotateTitle(Bool_t rotate = kTRUE)
             virtual void SaveAttributes(ofstream& out, const char* name, const char* subname)
             virtual void Set(Int_t nbins, Axis_t xmin, Axis_t xmax)
             virtual void Set(Int_t nbins, const Float_t* xbins)
             virtual void Set(Int_t nbins, const Axis_t* xbins)
             virtual void SetBinLabel(Int_t bin, char* label)
             virtual void SetDrawOption(Option_t* option)
             virtual void SetLabel(const char* label)
             virtual void SetLimits(Axis_t xmin, Axis_t xmax)
             virtual void SetParent(TObject* obj)
             virtual void SetRange(Int_t first = 0, Int_t last = 0)
             virtual void SetTimeDisplay(Int_t value)
             virtual void SetTimeFormat(const char* format)
             virtual void ShowMembers(TMemberInspector& insp, char* parent)
             virtual void Streamer(TBuffer& b)
                     void StreamerNVirtual(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
       TArrayD 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
        Bool_t fTimeDisplay  on/off displaying time values instead of numerics
       TString fTimeFormat   Date&time format, ex: 09/12/99 12:34:00
      TObject* fParent       !Object owning this axis

    public:

      static const enum TObject:: kAxisRange    
      static const enum TObject:: kCenterTitle  
      static const enum TObject:: kRotateTitle  

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

 Choose a reasonable time format from the coordinates in the active pad
 and the number of divisions in this axis
 If orientation = "X", the horizontal axis of the pad will be used for ref.
 If orientation = "Y", the vertical axis of the pad will be used for ref.

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

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

*-*-*-*-*-*-*-*-*-*-*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-*-*-*-*-*-*
*-*              ===========================================

 If x is underflow or overflow, attempt to rebin histogram

*-*-*-*-*-*-*-*-*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-*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                ==============================

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

    rotate title by 180 degrees
    by default the title is drawn right adjusted.
    if rotate is TRUE, the title is left adjusted at the end of the axis
    and rotated by 180 degrees

 Save axis attributes as C++ statement(s) on output stream out

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

*-*-*-*-*-*-*-*-*Initialize axis with variable 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

*-*-*-*-*-*-*-*-*-*-*Change the format used for time plotting *-*-*-*-*-*-*-*
*-*                  ========================================
  The format string for date and time use the same options as the one used
  in the standard strftime C function, i.e. :
    for date :
      %a abbreviated weekday name
      %b abbreviated month name
      %d day of the month (01-31)
      %m month (01-12)
      %y year without century

    for time :
      %H hour (24-hour clock)
      %I hour (12-hour clock)
      %p local equivalent of AM or PM
      %M minute (00-59)
      %S seconds (00-61)
      %% %

 Stream an object of class TAxis.

 Reset first & last bin to the full range

Inline Functions

               void Delete(Option_t* option)
           TObject* DrawClone(Option_t* option) const
              Int_t GetNbins() const
           TObject* GetParent() const
             Bool_t GetTimeDisplay() const
        const char* GetTimeFormat() const
        const char* GetTitle() const
           TArrayD* GetXbins()
             Axis_t GetXmin() const
             Axis_t GetXmax() const
               void SetDrawOption(Option_t* option)
               void SetParent(TObject* obj)
               void SetTimeDisplay(Int_t value)
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void StreamerNVirtual(TBuffer& b)