library: libGraf #include "TMarker.h"

# TMarker

class description - source file - inheritance tree (.ps)

## class TMarker : public TObject, public TAttMarker

| Inheritance Chart:

`TObject`

`TAttMarker`

<-

`TMarker`

        public:

                          TMarker()
                          TMarker(Double_t x, Double_t y, Int_t marker)
                          TMarker(const TMarker& marker)
                  virtual ~TMarker()
           static TClass* Class()
             virtual void Copy(TObject& marker) const
              static void DisplayMarkerTypes()
            virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
             virtual void Draw(Option_t* option)
             virtual void DrawMarker(Double_t x, Double_t y)
             virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
                 Double_t GetX() const
                 Double_t GetY() const
          virtual TClass* IsA() const
             virtual void ls(Option_t* option) const
                 TMarker& operator=(const TMarker&)
             virtual void Paint(Option_t* option)
             virtual void PaintMarker(Double_t x, Double_t y)
             virtual void PaintMarkerNDC(Double_t u, Double_t v)
             virtual void Print(Option_t* option) const
             virtual void SavePrimitive(ofstream& out, Option_t* option)
             virtual void SetNDC(Bool_t isNDC = kTRUE)
             virtual void SetX(Double_t x)
             virtual void SetY(Double_t y)
             virtual void ShowMembers(TMemberInspector& insp, char* parent)
             virtual void Streamer(TBuffer& b)
                     void StreamerNVirtual(TBuffer& b)

### Data Members

        protected:

          Double_t fX  X position of marker (left,center,etc..)
          Double_t fY  Y position of marker (left,center,etc..)

        public:

          static const enum TMarker:: kMarkerNDC

## Class Description

     Manages Markers. Marker attributes are managed by TAttMarker.
     The list of standard ROOT markers is shown in this picture

/* */

TMarker(): TObject(), TAttMarker()

    *-*-*-*-*-*-*-*-*-*-*Marker default constructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
    *-*                  ==========================

TMarker(Double_t x, Double_t y, Int_t marker) :TObject(), TAttMarker()

    *-*-*-*-*-*-*-*-*-*-*Marker normal constructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
    *-*                  =========================

~TMarker()

    *-*-*-*-*-*-*-*-*-*-*Marker default destructor*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
    *-*                  =========================

TMarker(const TMarker &marker) : TObject(marker), TAttMarker(marker)

void Copy(TObject &obj) const

    *-*-*-*-*-*-*-*-*-*-*Copy this marker to marker*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
    *-*                  ==========================

void DisplayMarkerTypes()

    *-*-*-*-*-*-*-*-*-*-*Display the table of markers with their numbers*-*-*-*
    *-*                  ===============================================

Int_t DistancetoPrimitive(Int_t px, Int_t py)

    *-*-*-*-*-*-*-*-*-*-*Compute distance from point px,py to a marker*-*-*-*-*-*
    *-*                  ===========================================
      Compute the closest distance of approach from point px,py to this marker.
      The distance is computed in pixels units.

void Draw(Option_t *option)

    *-*-*-*-*-*-*-*-*-*-*Draw this marker with its current attributes*-*-*-*-*-*-*
    *-*                  ============================================

void DrawMarker(Double_t x, Double_t y)

    *-*-*-*-*-*-*-*-*-*-*Draw this marker with new coordinates*-*-*-*-*-*-*-*-*-*
    *-*                  =====================================

void ExecuteEvent(Int_t event, Int_t px, Int_t py)

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

      If Left button is clicked on a marker, the marker is moved to
         a new position when the mouse button is released.

void ls(Option_t *) const

    *-*-*-*-*-*-*-*-*-*-*-*List this marker with its attributes*-*-*-*-*-*-*-*-*
    *-*                    ====================================

void Paint(Option_t *)

    *-*-*-*-*-*-*-*-*-*-*Paint this marker with its current attributes*-*-*-*-*-*-*
    *-*                  =============================================

void PaintMarker(Double_t x, Double_t y)

    *-*-*-*-*-*-*-*-*-*-*Draw this marker with new coordinates*-*-*-*-*-*-*-*-*-*
    *-*                  =====================================

void PaintMarkerNDC(Double_t, Double_t)

    *-*-*-*-*-*-*-*Draw this marker with new coordinates in NDC*-*-*-*-*-*-*-*-*-*
    *-*            ============================================

void Print(Option_t *) const

    *-*-*-*-*-*-*-*-*-*-*Dump this marker with its attributes*-*-*-*-*-*-*-*-*-*
    *-*                  ====================================

void SavePrimitive(ofstream &out, Option_t *)

     Save primitive as a C++ statement(s) on output stream out

void SetNDC(Bool_t isNDC)

     Set NDC mode on if isNDC = kTRUE, off otherwise

void Streamer(TBuffer &R__b)

     Stream an object of class TMarker.

### Inline Functions

               Double_t GetX() const
               Double_t GetY() const
                   void SetX(Double_t x)
                   void SetY(Double_t y)
                TClass* Class()
                TClass* IsA() const
                   void ShowMembers(TMemberInspector& insp, char* parent)
                   void StreamerNVirtual(TBuffer& b)
               TMarker& operator=(const TMarker&)

Author: Rene Brun 12/05/95
Last update: root/graf:$Name: $:$Id: TMarker.cxx,v 1.12 2003/10/23 09:36:25 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *