class TArrow: public TLine, public TAttFill

TArrow : to draw all kinds of arrows

The different arrow's formats are explained in TArrow::TArrow. The picture below gives some examples.

Once an arrow is drawn on the screen:

  • One can click on one of the edges and move this edge.
  • One can click on any other arrow part to move the entire arrow.

Picture
Source



output of MACRO_TArrow_1_c1


//Draw arrows
//Author: Rene Brun
{
   c1 = new TCanvas("c1");
   c1->Range(0,0,1,1);
   TPaveLabel par(0.1,0.8,0.9,0.95,"Examples of various arrow formats");
   par.SetFillColor(42);
   par.Draw();
   TArrow ar1(0.1,0.1,0.1,0.7);
   ar1.Draw();
   TArrow ar2(0.2,0.1,0.2,0.7,0.05,"|>");
   ar2.SetAngle(40);
   ar2.SetLineWidth(2);
   ar2.Draw();
   TArrow ar3(0.3,0.1,0.3,0.7,0.05,"<|>");
   ar3.SetAngle(40);
   ar3.SetLineWidth(2);
   ar3.Draw();
   TArrow ar4(0.46,0.7,0.82,0.42,0.07,"|>");
   ar4.SetAngle(60);
   ar4.SetLineWidth(2);
   ar4.SetFillColor(2);
   ar4.Draw();
   TArrow ar5(0.4,0.25,0.95,0.25,0.15,"<|>");
   ar5.SetAngle(60);
   ar5.SetLineWidth(4);
   ar5.SetLineColor(4);
   ar5.SetFillStyle(3008);
   ar5.SetFillColor(2);
   ar5.Draw();
   return c1;
}
 








Function Members (Methods)


public:



TArrow()


TArrow(const TArrow& arrow)


TArrow(Double_t x1, Double_t y1, Double_t x2, Double_t y2, Float_t arrowsize = 0.05, Option_t* option = ">")


 virtual~TArrow()


voidTObject::AbstractMethod(const char* method) const


virtual voidTObject::AppendPad(Option_t* option = "")


virtual voidTObject::Browse(TBrowser* b)


static TClass*Class()


virtual const char*TObject::ClassName() const


virtual voidTObject::Clear(Option_t* = "")


virtual TObject*TObject::Clone(const char* newname = "") const


virtual Int_tTObject::Compare(const TObject* obj) const


virtual voidCopy(TObject& arrow) const


virtual voidTObject::Delete(Option_t* option = "")MENU 


Int_tTAttLine::DistancetoLine(Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)


virtual Int_tTLine::DistancetoPrimitive(Int_t px, Int_t py)


virtual voidDraw(Option_t* option = "")


virtual voidDrawArrow(Double_t x1, Double_t y1, Double_t x2, Double_t y2, Float_t arrowsize = 0, Option_t* option = "")


virtual voidTObject::DrawClass() constMENU 


virtual TObject*TObject::DrawClone(Option_t* option = "") constMENU 


virtual TLine*TLine::DrawLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2)


virtual TLine*TLine::DrawLineNDC(Double_t x1, Double_t y1, Double_t x2, Double_t y2)


virtual voidTObject::Dump() constMENU 


virtual voidTObject::Error(const char* method, const char* msgfmt) const


virtual voidTObject::Execute(const char* method, const char* params, Int_t* error = 0)


virtual voidTObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)


virtual voidTLine::ExecuteEvent(Int_t event, Int_t px, Int_t py)


virtual voidTObject::Fatal(const char* method, const char* msgfmt) const


virtual TObject*TObject::FindObject(const char* name) const


virtual TObject*TObject::FindObject(const TObject* obj) const


Float_tGetAngle() const


Float_tGetArrowSize() const


static Float_tGetDefaultAngle()


static Float_tGetDefaultArrowSize()


static Option_t*GetDefaultOption()


virtual Option_t*TObject::GetDrawOption() const


static Long_tTObject::GetDtorOnly()


virtual Color_tTAttFill::GetFillColor() const


virtual Style_tTAttFill::GetFillStyle() const


virtual const char*TObject::GetIconName() const


virtual Color_tTAttLine::GetLineColor() const


virtual Style_tTAttLine::GetLineStyle() const


virtual Width_tTAttLine::GetLineWidth() const


virtual const char*TObject::GetName() const


virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const


static Bool_tTObject::GetObjectStat()


virtual Option_t*GetOption() const


virtual const char*TObject::GetTitle() const


virtual UInt_tTObject::GetUniqueID() const


Double_tTLine::GetX1() const


Double_tTLine::GetX2() const


Double_tTLine::GetY1() const


Double_tTLine::GetY2() const


virtual Bool_tTObject::HandleTimer(TTimer* timer)


virtual ULong_tTObject::Hash() const


virtual voidTObject::Info(const char* method, const char* msgfmt) const


virtual Bool_tTObject::InheritsFrom(const char* classname) const


virtual Bool_tTObject::InheritsFrom(const TClass* cl) const


virtual voidTObject::Inspect() constMENU 


voidTObject::InvertBit(UInt_t f)


virtual TClass*IsA() const


virtual Bool_tTObject::IsEqual(const TObject* obj) const


virtual Bool_tTObject::IsFolder() const


Bool_tTLine::IsHorizontal()


Bool_tTObject::IsOnHeap() const


virtual Bool_tTObject::IsSortable() const


virtual Bool_tTAttFill::IsTransparent() const


Bool_tTLine::IsVertical()


Bool_tTObject::IsZombie() const


virtual voidTLine::ls(Option_t* option = "") const


voidTObject::MayNotUse(const char* method) const


virtual voidTAttLine::Modify()


virtual Bool_tTObject::Notify()


static voidTObject::operator delete(void* ptr)


static voidTObject::operator delete(void* ptr, void* vp)


static voidTObject::operator delete[](void* ptr)


static voidTObject::operator delete[](void* ptr, void* vp)


void*TObject::operator new(size_t sz)


void*TObject::operator new(size_t sz, void* vp)


void*TObject::operator new[](size_t sz)


void*TObject::operator new[](size_t sz, void* vp)


TArrow&operator=(const TArrow&)


virtual voidPaint(Option_t* option = "")


virtual voidPaintArrow(Double_t x1, Double_t y1, Double_t x2, Double_t y2, Float_t arrowsize = 0.05, Option_t* option = ">")


virtual voidTLine::PaintLine(Double_t x1, Double_t y1, Double_t x2, Double_t y2)


virtual voidTLine::PaintLineNDC(Double_t u1, Double_t v1, Double_t u2, Double_t v2)


virtual voidTObject::Pop()


virtual voidTLine::Print(Option_t* option = "") const


virtual Int_tTObject::Read(const char* name)


virtual voidTObject::RecursiveRemove(TObject* obj)


virtual voidTAttFill::ResetAttFill(Option_t* option = "")


virtual voidTAttLine::ResetAttLine(Option_t* option = "")


voidTObject::ResetBit(UInt_t f)


virtual voidTObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU 


virtual voidTAttFill::SaveFillAttributes(ostream& out, const char* name, Int_t coldef = 1, Int_t stydef = 1001)


virtual voidTAttLine::SaveLineAttributes(ostream& out, const char* name, Int_t coldef = 1, Int_t stydef = 1, Int_t widdef = 1)


virtual voidSavePrimitive(ostream& out, Option_t* option = "")


virtual voidSetAngle(Float_t angle = 60)MENU 


virtual voidSetArrowSize(Float_t arrowsize = 0.05)MENU 


voidTObject::SetBit(UInt_t f)


voidTObject::SetBit(UInt_t f, Bool_t set)


static voidSetDefaultAngle(Float_t Angle)


static voidSetDefaultArrowSize(Float_t ArrowSize)


static voidSetDefaultOption(Option_t* Option)


virtual voidTObject::SetDrawOption(Option_t* option = "")MENU 


static voidTObject::SetDtorOnly(void* obj)


virtual voidTAttFill::SetFillAttributes()MENU 


virtual voidTAttFill::SetFillColor(Color_t fcolor)


virtual voidTAttFill::SetFillStyle(Style_t fstyle)


voidTLine::SetHorizontal(Bool_t set = kTRUE)TOGGLE GETTER 


virtual voidTAttLine::SetLineAttributes()MENU 


virtual voidTAttLine::SetLineColor(Color_t lcolor)


virtual voidTAttLine::SetLineStyle(Style_t lstyle)


virtual voidTAttLine::SetLineWidth(Width_t lwidth)


static voidTObject::SetObjectStat(Bool_t stat)


virtual voidSetOption(Option_t* option = ">")


virtual voidTObject::SetUniqueID(UInt_t uid)


voidTLine::SetVertical(Bool_t set = kTRUE)TOGGLE GETTER 


virtual voidTLine::SetX1(Double_t x1)


virtual voidTLine::SetX2(Double_t x2)


virtual voidTLine::SetY1(Double_t y1)


virtual voidTLine::SetY2(Double_t y2)


virtual voidShowMembers(TMemberInspector& insp, char* parent)


virtual voidStreamer(TBuffer& b)


voidStreamerNVirtual(TBuffer& b)


virtual voidTObject::SysError(const char* method, const char* msgfmt) const


Bool_tTObject::TestBit(UInt_t f) const


Int_tTObject::TestBits(UInt_t f) const


virtual voidTObject::UseCurrentStyle()


virtual voidTObject::Warning(const char* method, const char* msgfmt) const


virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)


virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const





protected:



virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const


voidTObject::MakeZombie()










Data Members


public:



enum TLine::[unnamed] { kLineNDC


kVertical


kHorizontal


};


enum TObject::EStatusBits { kCanDelete


kMustCleanup


kObjInCanvas


kIsReferenced


kHasUUID


kCannotPick


kNoContextMenu


kInvalidObject


};


enum TObject::[unnamed] { kIsOnHeap


kNotDeleted


kZombie


kBitMask


kSingleKey


kOverwrite


kWriteDelete


};





protected:



Float_tfAngleArrow opening angle (degrees)


Float_tfArrowSizeArrow Size


Color_tTAttFill::fFillColorfill area color


Style_tTAttFill::fFillStylefill area style


Color_tTAttLine::fLineColorline color


Style_tTAttLine::fLineStyleline style


Width_tTAttLine::fLineWidthline width


TStringfOptionArrow shapes


Double_tTLine::fX1X of 1st point


Double_tTLine::fX2X of 2nd point


Double_tTLine::fY1Y of 1st point


Double_tTLine::fY2Y of 2nd point


static Float_tfgDefaultAngledefault Arrow opening angle (degrees)


static Float_tfgDefaultArrowSizedefault Arrow Size


static TStringfgDefaultOptiondefault Arrow shapes







Class Charts










































Inheritance
Inherited Members
Includes
Libraries



Class Charts


Function documentation


 TArrow(const TArrow& arrow)


 Arrow default constructor.





 TArrow(Double_t x1, Double_t y1, Double_t x2, Double_t y2, Float_t arrowsize = 0.05, Option_t* option = ">")


 Arrow normal constructor.

 Define an arrow between points x1,y1 and x2,y2
 the arrowsize is in percentage of the pad height
 Opening angle between the two sides of the arrow is fAngle (60 degrees)

  option = ">"      -------->
  option = "|->"    |------->
  option = "<"      <--------
  option = "<-|"    <-------|
  option = "->-"    ---->----
  option = "-<-"    ----<----
  option = "-|>-"   ---|>----
  option = "<>"     <------->
  option = "<|>"    <|-----|>  arrow defined by a triangle

  Note:
  - If FillColor == 0 draw open triangle else  draw full triangle with fillcolor
    default is filled with LineColor
  - "Begin" and "end" bars can be combined with any other options.





 ~TArrow()


 Arrow default destructor.





 TArrow(const TArrow& arrow)


 Copy constructor.





void Copy(TObject& arrow) const


 Copy this arrow to arrow.





void Draw(Option_t* option = "")


 Draw this arrow with its current attributes.





void DrawArrow(Double_t x1, Double_t y1, Double_t x2, Double_t y2, Float_t arrowsize = 0, Option_t* option = "")


 Draw this arrow with new coordinates.

 if arrowsize is <= 0, arrowsize will be the current arrow size
 if option="", option will be the current arrow option





void Paint(Option_t* option = "")


 Paint this arrow with its current attributes.





void PaintArrow(Double_t x1, Double_t y1, Double_t x2, Double_t y2, Float_t arrowsize = 0.05, Option_t* option = ">")


 Draw this arrow


                             +
                             |.
                             | .
                             |  .
     +-----------------------|---+------------------+
  (x1,y1)                    |  .                (x2,y2)
                             | .
                             |.
                             +





void SavePrimitive(ostream& out, Option_t* option = "")


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





void SetDefaultAngle(Float_t Angle)


 Set default angle.





void SetDefaultArrowSize(Float_t ArrowSize)


 Set default arrow sive.





void SetDefaultOption(Option_t* Option)


 Set default option.





Float_t GetDefaultAngle()


 Get default angle.





Float_t GetDefaultArrowSize()


 Get default arrow size.





Option_t * GetDefaultOption()


 Get default option.





Float_t GetAngle()



{return fAngle;}






Float_t GetArrowSize()



{return fArrowSize;}






Option_t      * GetOption()



{ return fOption.Data();}






void SetAngle(Float_t angle = 60)



{fAngle=angle;}






void SetArrowSize(Float_t arrowsize = 0.05)



{fArrowSize=arrowsize;}






void SetOption(Option_t* option = ">")



{ fOption = option;}









Author:  Rene Brun   17/10/95

Last change: root/graf:$Id: TArrow.h 20882 2007-11-19 11:31:26Z rdm $

Last generated: 2008-06-25 08:34

Copyright   (C) 1995-2000, Rene Brun and Fons Rademakers.               *




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