Logo ROOT   6.19/01
Reference Guide
List of all members | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members

The TGraphDelaunay painting class.

TGraph2DPainter paints a TGraphDelaunay using triangles or clouds of points.

Definition at line 31 of file TGraph2DPainter.h.

Public Member Functions

 TGraph2DPainter ()
 TGraph2DPainter default constructor. More...
 
 TGraph2DPainter (TGraphDelaunay *gd)
 TGraph2DPainter constructor using the old Delaunay algorithm. More...
 
 TGraph2DPainter (TGraphDelaunay2D *gd)
 TGraph2DPainter constructor using the new Delaunay algorithm. More...
 
virtual ~TGraph2DPainter ()
 TGraph2DPainter destructor. More...
 
TListGetContourList (Double_t contour)
 Returns the X and Y graphs building a contour. More...
 
void Paint (Option_t *option)
 Paint a TGraphDelaunay according to the value of "option": More...
 
void PaintContour (Option_t *option)
 Paints the 2D graph as a contour plot. More...
 
void PaintErrors (Option_t *option)
 Paints the 2D graph as error bars. More...
 
void PaintPolyLine (Option_t *option)
 Paints the 2D graph as PaintPolyLine. More...
 
void PaintPolyMarker (Option_t *option)
 Paints the 2D graph as PaintPolyMarker. More...
 
void PaintTriangles (Option_t *option)
 Paints the 2D graph as triangles. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
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. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
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. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. More...
 
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). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
void SetBit (UInt_t f)
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
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. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 

Protected Member Functions

void FindTriangles ()
 Find triangles in fDelaunay and initialise the TGraph2DPainter values needed to paint triangles or find contours. More...
 
void PaintLevels (Int_t *v, Double_t *x, Double_t *y, Int_t nblev=0, Double_t *glev=0)
 Paints one triangle. More...
 
void PaintPolyMarker0 (Int_t n, Double_t *x, Double_t *y)
 Paints a circle at each vertex. Each circle background is white. More...
 
void PaintTriangles_new (Option_t *option)
 Paints the 2D graph as triangles (new implementation) More...
 
void PaintTriangles_old (Option_t *option)
 Paints the 2D graph as triangles (old implementation) More...
 
- 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). More...
 
void MakeZombie ()
 

Protected Attributes

TGraphDelaunayfDelaunay
 Pointer to fDelaunay->fMTried. More...
 
TGraphDelaunay2DfDelaunay2D
 
Double_tfEX
 Pointer to fDelaunay->fYN. More...
 
Double_tfEY
 Pointer to fGraph2D->fXE. More...
 
Double_tfEZ
 Pointer to fGraph2D->fYE. More...
 
TGraph2DfGraph2D
 
Int_tfMTried
 Pointer to fDelaunay->fNTried. More...
 
Int_t fNdt
 Equal to fGraph2D->fNpoints. More...
 
Int_t fNpoints
 
Int_tfNTried
 Pointer to fDelaunay->fPTried. More...
 
Int_tfPTried
 Equal to fDelaunay->fNdt. More...
 
Double_tfX
 
Double_t fXmax
 
Double_t fXmin
 Equal to fDelaunay->fYNmax. More...
 
Double_tfXN
 Pointer to fGraph2D->fZ. More...
 
Double_t fXNmax
 Equal to fDelaunay->fXNmin. More...
 
Double_t fXNmin
 Pointer to fGraph2D->fZE. More...
 
Double_tfY
 Pointer to fGraph2D->fX. More...
 
Double_t fYmax
 fGraph2D->fHistogram limits More...
 
Double_t fYmin
 
Double_tfYN
 Pointer to fDelaunay->fXN. More...
 
Double_t fYNmax
 Equal to fDelaunay->fYNmin. More...
 
Double_t fYNmin
 Equal to fDelaunay->fXNmax. More...
 
Double_tfZ
 Pointer to fGraph2D->fY. More...
 
Double_t fZmax
 
Double_t fZmin
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 

#include <TGraph2DPainter.h>

Inheritance diagram for TGraph2DPainter:
[legend]

Constructor & Destructor Documentation

◆ TGraph2DPainter() [1/3]

TGraph2DPainter::TGraph2DPainter ( )

TGraph2DPainter default constructor.

Definition at line 48 of file TGraph2DPainter.cxx.

◆ TGraph2DPainter() [2/3]

TGraph2DPainter::TGraph2DPainter ( TGraphDelaunay gd)

TGraph2DPainter constructor using the old Delaunay algorithm.

Definition at line 82 of file TGraph2DPainter.cxx.

◆ TGraph2DPainter() [3/3]

TGraph2DPainter::TGraph2DPainter ( TGraphDelaunay2D gd)

TGraph2DPainter constructor using the new Delaunay algorithm.

Definition at line 115 of file TGraph2DPainter.cxx.

◆ ~TGraph2DPainter()

TGraph2DPainter::~TGraph2DPainter ( )
virtual

TGraph2DPainter destructor.

Definition at line 149 of file TGraph2DPainter.cxx.

Member Function Documentation

◆ FindTriangles()

void TGraph2DPainter::FindTriangles ( )
protected

Find triangles in fDelaunay and initialise the TGraph2DPainter values needed to paint triangles or find contours.

Definition at line 158 of file TGraph2DPainter.cxx.

◆ GetContourList()

TList * TGraph2DPainter::GetContourList ( Double_t  contour)

Returns the X and Y graphs building a contour.

A contour level may consist in several parts not connected to each other. This function finds them and returns them in a graphs' list.

Definition at line 189 of file TGraph2DPainter.cxx.

◆ Paint()

void TGraph2DPainter::Paint ( Option_t option)
virtual

Paint a TGraphDelaunay according to the value of "option":

Option Description
"TRI" The Delaunay triangles are drawn using filled area. An hidden surface drawing technique is used. The surface is painted with the current fill area color. The edges of each triangles are painted with the current line color.
"TRIW" The Delaunay triangles are drawn as wire frame.
"TRI1" The Delaunay triangles are painted with color levels. The edges of each triangles are painted with the current line color.
"TRI2" the Delaunay triangles are painted with color levels.
"P" Draw a marker at each vertex.
"P0" Draw a circle at each vertex. Each circle background is white.
"PCOL" Draw a marker at each vertex. The color of each marker is defined according to its Z position.
"CONT" Draw contours.
"LINE" Draw a 3D polyline.

Reimplemented from TObject.

Definition at line 504 of file TGraph2DPainter.cxx.

◆ PaintContour()

void TGraph2DPainter::PaintContour ( Option_t option)

Paints the 2D graph as a contour plot.

Delaunay triangles are used to compute the contours.

Definition at line 549 of file TGraph2DPainter.cxx.

◆ PaintErrors()

void TGraph2DPainter::PaintErrors ( Option_t option)

Paints the 2D graph as error bars.

Definition at line 590 of file TGraph2DPainter.cxx.

◆ PaintLevels()

void TGraph2DPainter::PaintLevels ( Int_t t,
Double_t x,
Double_t y,
Int_t  nblev = 0,
Double_t glev = 0 
)
protected

Paints one triangle.

  • nblev = 0 : paint the color levels
  • nblev != 0 : paint the grid

Definition at line 695 of file TGraph2DPainter.cxx.

◆ PaintPolyLine()

void TGraph2DPainter::PaintPolyLine ( Option_t option)

Paints the 2D graph as PaintPolyLine.

Definition at line 989 of file TGraph2DPainter.cxx.

◆ PaintPolyMarker()

void TGraph2DPainter::PaintPolyMarker ( Option_t option)

Paints the 2D graph as PaintPolyMarker.

Definition at line 889 of file TGraph2DPainter.cxx.

◆ PaintPolyMarker0()

void TGraph2DPainter::PaintPolyMarker0 ( Int_t  n,
Double_t x,
Double_t y 
)
protected

Paints a circle at each vertex. Each circle background is white.

Definition at line 1040 of file TGraph2DPainter.cxx.

◆ PaintTriangles()

void TGraph2DPainter::PaintTriangles ( Option_t option)

Paints the 2D graph as triangles.

Definition at line 1062 of file TGraph2DPainter.cxx.

◆ PaintTriangles_new()

void TGraph2DPainter::PaintTriangles_new ( Option_t option)
protected

Paints the 2D graph as triangles (new implementation)

Definition at line 1229 of file TGraph2DPainter.cxx.

◆ PaintTriangles_old()

void TGraph2DPainter::PaintTriangles_old ( Option_t option)
protected

Paints the 2D graph as triangles (old implementation)

Definition at line 1074 of file TGraph2DPainter.cxx.

Member Data Documentation

◆ fDelaunay

TGraphDelaunay* TGraph2DPainter::fDelaunay
protected

Pointer to fDelaunay->fMTried.

Definition at line 60 of file TGraph2DPainter.h.

◆ fDelaunay2D

TGraphDelaunay2D* TGraph2DPainter::fDelaunay2D
protected

Definition at line 61 of file TGraph2DPainter.h.

◆ fEX

Double_t* TGraph2DPainter::fEX
protected

Pointer to fDelaunay->fYN.

Definition at line 40 of file TGraph2DPainter.h.

◆ fEY

Double_t* TGraph2DPainter::fEY
protected

Pointer to fGraph2D->fXE.

Definition at line 41 of file TGraph2DPainter.h.

◆ fEZ

Double_t* TGraph2DPainter::fEZ
protected

Pointer to fGraph2D->fYE.

Definition at line 42 of file TGraph2DPainter.h.

◆ fGraph2D

TGraph2D* TGraph2DPainter::fGraph2D
protected

Definition at line 62 of file TGraph2DPainter.h.

◆ fMTried

Int_t* TGraph2DPainter::fMTried
protected

Pointer to fDelaunay->fNTried.

Definition at line 57 of file TGraph2DPainter.h.

◆ fNdt

Int_t TGraph2DPainter::fNdt
protected

Equal to fGraph2D->fNpoints.

Definition at line 54 of file TGraph2DPainter.h.

◆ fNpoints

Int_t TGraph2DPainter::fNpoints
protected

Definition at line 53 of file TGraph2DPainter.h.

◆ fNTried

Int_t* TGraph2DPainter::fNTried
protected

Pointer to fDelaunay->fPTried.

Definition at line 56 of file TGraph2DPainter.h.

◆ fPTried

Int_t* TGraph2DPainter::fPTried
protected

Equal to fDelaunay->fNdt.

Definition at line 55 of file TGraph2DPainter.h.

◆ fX

Double_t* TGraph2DPainter::fX
protected

Definition at line 35 of file TGraph2DPainter.h.

◆ fXmax

Double_t TGraph2DPainter::fXmax
protected

Definition at line 48 of file TGraph2DPainter.h.

◆ fXmin

Double_t TGraph2DPainter::fXmin
protected

Equal to fDelaunay->fYNmax.

Definition at line 47 of file TGraph2DPainter.h.

◆ fXN

Double_t* TGraph2DPainter::fXN
protected

Pointer to fGraph2D->fZ.

Definition at line 38 of file TGraph2DPainter.h.

◆ fXNmax

Double_t TGraph2DPainter::fXNmax
protected

Equal to fDelaunay->fXNmin.

Definition at line 44 of file TGraph2DPainter.h.

◆ fXNmin

Double_t TGraph2DPainter::fXNmin
protected

Pointer to fGraph2D->fZE.

Definition at line 43 of file TGraph2DPainter.h.

◆ fY

Double_t* TGraph2DPainter::fY
protected

Pointer to fGraph2D->fX.

Definition at line 36 of file TGraph2DPainter.h.

◆ fYmax

Double_t TGraph2DPainter::fYmax
protected

fGraph2D->fHistogram limits

Definition at line 50 of file TGraph2DPainter.h.

◆ fYmin

Double_t TGraph2DPainter::fYmin
protected

Definition at line 49 of file TGraph2DPainter.h.

◆ fYN

Double_t* TGraph2DPainter::fYN
protected

Pointer to fDelaunay->fXN.

Definition at line 39 of file TGraph2DPainter.h.

◆ fYNmax

Double_t TGraph2DPainter::fYNmax
protected

Equal to fDelaunay->fYNmin.

Definition at line 46 of file TGraph2DPainter.h.

◆ fYNmin

Double_t TGraph2DPainter::fYNmin
protected

Equal to fDelaunay->fXNmax.

Definition at line 45 of file TGraph2DPainter.h.

◆ fZ

Double_t* TGraph2DPainter::fZ
protected

Pointer to fGraph2D->fY.

Definition at line 37 of file TGraph2DPainter.h.

◆ fZmax

Double_t TGraph2DPainter::fZmax
protected

Definition at line 52 of file TGraph2DPainter.h.

◆ fZmin

Double_t TGraph2DPainter::fZmin
protected

Definition at line 51 of file TGraph2DPainter.h.

Libraries for TGraph2DPainter:
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The documentation for this class was generated from the following files: