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TMarker Class Reference

Manages Markers.

Use the TMarker constructor to create a marker.

TMarker()
Marker default constructor.
Definition TMarker.cxx:55
Double_t y[n]
Definition legend1.C:17
Double_t x[n]
Definition legend1.C:17

The parameters x and y are the marker coordinates and marker is the marker type.

Use the TPolyMarker to create an array on N points in a 2D space. At each point x[i], y[i] a marker is drawn.

Use the TAttMarker class to change the attributes color, style and size of a marker.

Example

  • Use the TAttMarker::SetMarkerSize(size) method to set the size of a marker.

Definition at line 22 of file TMarker.h.

Public Types

enum  { kMarkerNDC = (1ULL << ( 14 )) }
 
- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }
 
enum  EStatusBits {
  kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) ,
  kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 ))
}
 

Public Member Functions

 TMarker ()
 Marker default constructor.
 
 TMarker (const TMarker &marker)
 Marker copy constructor.
 
 TMarker (Double_t x, Double_t y, Int_t marker)
 Marker normal constructor.
 
 ~TMarker () override
 Marker default destructor.
 
void Copy (TObject &marker) const override
 Copy this marker to marker.
 
Int_t DistancetoPrimitive (Int_t px, Int_t py) override
 Compute distance from point px,py to a marker.
 
void Draw (Option_t *option="") override
 Draw this marker with its current attributes.
 
virtual TMarkerDrawMarker (Double_t x, Double_t y)
 Draw this marker with new coordinates.
 
void ExecuteEvent (Int_t event, Int_t px, Int_t py) override
 Execute action corresponding to one event.
 
Rectangle_t GetBBox () override
 Return the bounding Box of the Line.
 
TPoint GetBBoxCenter () override
 Return the center of the BoundingBox as TPoint in pixels.
 
Double_t GetX () const
 
Double_t GetY () const
 
TClassIsA () const override
 
void ls (Option_t *option="") const override
 List this marker with its attributes.
 
void Paint (Option_t *option="") override
 Paint this marker with its current attributes.
 
virtual void PaintMarker (Double_t x, Double_t y)
 Draw this marker with new coordinates.
 
virtual void PaintMarkerNDC (Double_t u, Double_t v)
 Draw this marker with new coordinates in NDC.
 
void Print (Option_t *option="") const override
 Dump this marker with its attributes.
 
void SavePrimitive (std::ostream &out, Option_t *option="") override
 Save primitive as a C++ statement(s) on output stream out.
 
void SetBBoxCenter (const TPoint &p) override
 Set center of the BoundingBox.
 
void SetBBoxCenterX (const Int_t x) override
 Set X coordinate of the center of the BoundingBox.
 
void SetBBoxCenterY (const Int_t y) override
 Set Y coordinate of the center of the BoundingBox.
 
void SetBBoxX1 (const Int_t x) override
 Set left hand side of BoundingBox to a value (resize in x direction on left)
 
void SetBBoxX2 (const Int_t x) override
 Set right hand side of BoundingBox to a value (resize in x direction on right)
 
void SetBBoxY1 (const Int_t y) override
 Set top of BoundingBox to a value (resize in y direction on top)
 
void SetBBoxY2 (const Int_t y) override
 Set bottom of BoundingBox to a value (resize in y direction on bottom)
 
virtual void SetNDC (Bool_t isNDC=kTRUE)
 Set NDC mode on if isNDC = kTRUE, off otherwise.
 
virtual void SetX (Double_t x)
 
virtual void SetY (Double_t y)
 
void Streamer (TBuffer &) override
 Stream an object of class TMarker.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor.
 
 TObject (const TObject &object)
 TObject copy ctor.
 
virtual ~TObject ()
 TObject destructor.
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract.
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad.
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action.
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs.
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility.
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method.
 
virtual void Delete (Option_t *option="")
 Delete this object.
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs.
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
 
virtual void Dump () const
 Dump contents of object on stdout.
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message.
 
virtual void Execute (const char *method, const char *params, Int_t *error=nullptr)
 Execute method on this object with the given parameter string, e.g.
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
 Execute method on this object with parameters stored in the TObjArray.
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message.
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes.
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes.
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object.
 
virtual const char * GetIconName () const
 Returns mime type name of object.
 
virtual const char * GetName () const
 Returns name of object.
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py).
 
virtual Option_tGetOption () const
 
virtual const char * GetTitle () const
 Returns title of object.
 
virtual UInt_t GetUniqueID () const
 Return the unique object id.
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out.
 
virtual ULong_t Hash () const
 Return hash value for this object.
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message.
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname".
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl.
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas.
 
void InvertBit (UInt_t f)
 
Bool_t IsDestructed () const
 IsDestructed.
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory).
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification (the base implementation is no-op).
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete.
 
void operator delete (void *ptr)
 Operator delete.
 
void operator delete (void *ptr, void *vp)
 Only called by placement new when throwing an exception.
 
void operator delete[] (void *ptr)
 Operator delete [].
 
void operator delete[] (void *ptr, void *vp)
 Only called by placement new[] when throwing an exception.
 
void * operator new (size_t sz)
 
void * operator new (size_t sz, void *vp)
 
void * operator new[] (size_t sz)
 
void * operator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator.
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list.
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory.
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list.
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename.
 
void SetBit (UInt_t f)
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f.
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object.
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message.
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message.
 
virtual Int_t Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory.
 
virtual Int_t Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory.
 
- Public Member Functions inherited from TAttMarker
 TAttMarker ()
 TAttMarker default constructor.
 
 TAttMarker (Color_t color, Style_t style, Size_t msize)
 TAttMarker normal constructor.
 
virtual ~TAttMarker ()
 TAttMarker destructor.
 
void Copy (TAttMarker &attmarker) const
 Copy this marker attributes to a new TAttMarker.
 
virtual Color_t GetMarkerColor () const
 Return the marker color.
 
virtual Size_t GetMarkerSize () const
 Return the marker size.
 
virtual Style_t GetMarkerStyle () const
 Return the marker style.
 
virtual void Modify ()
 Change current marker attributes if necessary.
 
virtual void ResetAttMarker (Option_t *toption="")
 Reset this marker attributes to the default values.
 
virtual void SaveMarkerAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t sizdef=1)
 Save line attributes as C++ statement(s) on output stream out.
 
virtual void SetMarkerAttributes ()
 Invoke the DialogCanvas Marker attributes.
 
virtual void SetMarkerColor (Color_t mcolor=1)
 Set the marker color.
 
virtual void SetMarkerColorAlpha (Color_t mcolor, Float_t malpha)
 Set a transparent marker color.
 
virtual void SetMarkerSize (Size_t msize=1)
 Set the marker size.
 
virtual void SetMarkerStyle (Style_t mstyle=1)
 Set the marker style.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TAttBBox2D
virtual ~TAttBBox2D ()
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 

Static Public Member Functions

static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static void DisplayMarkerLineWidths ()
 Display the table of markers with different line widths and their numbers.
 
static void DisplayMarkerTypes ()
 Display the table of markers with their numbers.
 
- Static Public Member Functions inherited from TObject
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static Longptr_t GetDtorOnly ()
 Return destructor only flag.
 
static Bool_t GetObjectStat ()
 Get status of object stat flag.
 
static void SetDtorOnly (void *obj)
 Set destructor only flag.
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable.
 
- Static Public Member Functions inherited from TAttMarker
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static Width_t GetMarkerLineWidth (Style_t style)
 Internal helper function that returns the line width of the given marker style (0 = filled marker)
 
static Style_t GetMarkerStyleBase (Style_t style)
 Internal helper function that returns the corresponding marker style with line width 1 for the given style.
 
- Static Public Member Functions inherited from TAttBBox2D
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 

Protected Attributes

Double_t fX
 X position of marker (left,center,etc..)
 
Double_t fY
 Y position of marker (left,center,etc..)
 
- Protected Attributes inherited from TAttMarker
Color_t fMarkerColor
 Marker color.
 
Size_t fMarkerSize
 Marker size.
 
Style_t fMarkerStyle
 Marker style.
 

Additional Inherited Members

- Protected Types inherited from TObject
enum  { kOnlyPrepStep = (1ULL << ( 3 )) }
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected).
 
void MakeZombie ()
 

#include <TMarker.h>

Inheritance diagram for TMarker:
[legend]

Member Enumeration Documentation

◆ anonymous enum

Enumerator
kMarkerNDC 

Marker position is in NDC.

Definition at line 30 of file TMarker.h.

Constructor & Destructor Documentation

◆ TMarker() [1/3]

TMarker::TMarker ( )

Marker default constructor.

Definition at line 55 of file TMarker.cxx.

◆ TMarker() [2/3]

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

Marker normal constructor.

Definition at line 64 of file TMarker.cxx.

◆ TMarker() [3/3]

TMarker::TMarker ( const TMarker & marker)

Marker copy constructor.

Definition at line 82 of file TMarker.cxx.

◆ ~TMarker()

TMarker::~TMarker ( )
override

Marker default destructor.

Definition at line 75 of file TMarker.cxx.

Member Function Documentation

◆ Class()

static TClass * TMarker::Class ( )
static
Returns
TClass describing this class

◆ Class_Name()

static const char * TMarker::Class_Name ( )
static
Returns
Name of this class

◆ Class_Version()

static constexpr Version_t TMarker::Class_Version ( )
inlinestaticconstexpr
Returns
Version of this class

Definition at line 69 of file TMarker.h.

◆ Copy()

void TMarker::Copy ( TObject & marker) const
overridevirtual

Copy this marker to marker.

Reimplemented from TObject.

Definition at line 92 of file TMarker.cxx.

◆ DeclFileName()

static const char * TMarker::DeclFileName ( )
inlinestatic
Returns
Name of the file containing the class declaration

Definition at line 69 of file TMarker.h.

◆ DisplayMarkerLineWidths()

void TMarker::DisplayMarkerLineWidths ( )
static

Display the table of markers with different line widths and their numbers.

Definition at line 134 of file TMarker.cxx.

◆ DisplayMarkerTypes()

void TMarker::DisplayMarkerTypes ( )
static

Display the table of markers with their numbers.

Definition at line 103 of file TMarker.cxx.

◆ DistancetoPrimitive()

Int_t TMarker::DistancetoPrimitive ( Int_t px,
Int_t py )
overridevirtual

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.

Returns
0 if the distance <= markerRadius exact computed distance if dist in [markerRadius+1, markerRadius+2] 999 if larger than markerRadius + 3 9999 if no pad

Reimplemented from TObject.

Definition at line 176 of file TMarker.cxx.

◆ Draw()

void TMarker::Draw ( Option_t * option = "")
overridevirtual

Draw this marker with its current attributes.

Reimplemented from TObject.

Definition at line 199 of file TMarker.cxx.

◆ DrawMarker()

TMarker * TMarker::DrawMarker ( Double_t x,
Double_t y )
virtual

Draw this marker with new coordinates.

Definition at line 208 of file TMarker.cxx.

◆ ExecuteEvent()

void TMarker::ExecuteEvent ( Int_t event,
Int_t px,
Int_t py )
overridevirtual

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.

Reimplemented from TObject.

Definition at line 225 of file TMarker.cxx.

◆ GetBBox()

Rectangle_t TMarker::GetBBox ( )
overridevirtual

Return the bounding Box of the Line.

Implements TAttBBox2D.

Definition at line 402 of file TMarker.cxx.

◆ GetBBoxCenter()

TPoint TMarker::GetBBoxCenter ( )
overridevirtual

Return the center of the BoundingBox as TPoint in pixels.

Implements TAttBBox2D.

Definition at line 418 of file TMarker.cxx.

◆ GetX()

Double_t TMarker::GetX ( ) const
inline

Definition at line 44 of file TMarker.h.

◆ GetY()

Double_t TMarker::GetY ( ) const
inline

Definition at line 45 of file TMarker.h.

◆ IsA()

TClass * TMarker::IsA ( ) const
inlineoverridevirtual
Returns
TClass describing current object

Reimplemented from TObject.

Definition at line 69 of file TMarker.h.

◆ ls()

void TMarker::ls ( Option_t * option = "") const
overridevirtual

List this marker with its attributes.

Reimplemented from TObject.

Definition at line 299 of file TMarker.cxx.

◆ Paint()

void TMarker::Paint ( Option_t * option = "")
overridevirtual

Paint this marker with its current attributes.

Reimplemented from TObject.

Definition at line 308 of file TMarker.cxx.

◆ PaintMarker()

void TMarker::PaintMarker ( Double_t x,
Double_t y )
virtual

Draw this marker with new coordinates.

Definition at line 323 of file TMarker.cxx.

◆ PaintMarkerNDC()

void TMarker::PaintMarkerNDC ( Double_t u,
Double_t v )
virtual

Draw this marker with new coordinates in NDC.

Definition at line 332 of file TMarker.cxx.

◆ Print()

void TMarker::Print ( Option_t * option = "") const
overridevirtual

Dump this marker with its attributes.

Reimplemented from TObject.

Definition at line 339 of file TMarker.cxx.

◆ SavePrimitive()

void TMarker::SavePrimitive ( std::ostream & out,
Option_t * option = "" )
overridevirtual

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

Reimplemented from TObject.

Definition at line 351 of file TMarker.cxx.

◆ SetBBoxCenter()

void TMarker::SetBBoxCenter ( const TPoint & p)
overridevirtual

Set center of the BoundingBox.

Implements TAttBBox2D.

Definition at line 430 of file TMarker.cxx.

◆ SetBBoxCenterX()

void TMarker::SetBBoxCenterX ( const Int_t x)
overridevirtual

Set X coordinate of the center of the BoundingBox.

Implements TAttBBox2D.

Definition at line 440 of file TMarker.cxx.

◆ SetBBoxCenterY()

void TMarker::SetBBoxCenterY ( const Int_t y)
overridevirtual

Set Y coordinate of the center of the BoundingBox.

Implements TAttBBox2D.

Definition at line 449 of file TMarker.cxx.

◆ SetBBoxX1()

void TMarker::SetBBoxX1 ( const Int_t x)
overridevirtual

Set left hand side of BoundingBox to a value (resize in x direction on left)

Implements TAttBBox2D.

Definition at line 459 of file TMarker.cxx.

◆ SetBBoxX2()

void TMarker::SetBBoxX2 ( const Int_t x)
overridevirtual

Set right hand side of BoundingBox to a value (resize in x direction on right)

Implements TAttBBox2D.

Definition at line 470 of file TMarker.cxx.

◆ SetBBoxY1()

void TMarker::SetBBoxY1 ( const Int_t y)
overridevirtual

Set top of BoundingBox to a value (resize in y direction on top)

Implements TAttBBox2D.

Definition at line 480 of file TMarker.cxx.

◆ SetBBoxY2()

void TMarker::SetBBoxY2 ( const Int_t y)
overridevirtual

Set bottom of BoundingBox to a value (resize in y direction on bottom)

Implements TAttBBox2D.

Definition at line 491 of file TMarker.cxx.

◆ SetNDC()

void TMarker::SetNDC ( Bool_t isNDC = kTRUE)
virtual

Set NDC mode on if isNDC = kTRUE, off otherwise.

Definition at line 368 of file TMarker.cxx.

◆ SetX()

virtual void TMarker::SetX ( Double_t x)
inlinevirtual

Definition at line 53 of file TMarker.h.

◆ SetY()

virtual void TMarker::SetY ( Double_t y)
inlinevirtual

Definition at line 54 of file TMarker.h.

◆ Streamer()

void TMarker::Streamer ( TBuffer & R__b)
overridevirtual

Stream an object of class TMarker.

Reimplemented from TObject.

Definition at line 377 of file TMarker.cxx.

◆ StreamerNVirtual()

void TMarker::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b)
inline

Definition at line 69 of file TMarker.h.

Member Data Documentation

◆ fX

Double_t TMarker::fX
protected

X position of marker (left,center,etc..)

Definition at line 25 of file TMarker.h.

◆ fY

Double_t TMarker::fY
protected

Y position of marker (left,center,etc..)

Definition at line 26 of file TMarker.h.

Libraries for TMarker:

The documentation for this class was generated from the following files: