TCurlyArc

class TCurlyArc : public TCurlyLine

    public:

                      TCurlyArc()
                      TCurlyArc(Double_t x1, Double_t y1, Double_t rad, Double_t phimin, Double_t phimax, Double_t wl = .02, Double_t amp = .01)
                      TCurlyArc(const TCurlyArc&)
              virtual ~TCurlyArc()
         virtual void Build()
       static TClass* Class()
        virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
         virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
      static Double_t GetDefaultAmplitude()
        static Bool_t GetDefaultIsCurly()
      static Double_t GetDefaultWaveLength()
             Double_t GetPhimax() const
             Double_t GetPhimin() const
             Double_t GetRadius() const
      virtual TClass* IsA() const
           TCurlyArc& operator=(const TCurlyArc&)
         virtual void SavePrimitive(ofstream& out, Option_t*)
         virtual void SetCenter(Double_t x1, Double_t y1)
          static void SetDefaultAmplitude(Double_t Amplitude)
          static void SetDefaultIsCurly(Bool_t IsCurly)
          static void SetDefaultWaveLength(Double_t WaveLength)
         virtual void SetPhimax(Double_t phimax)
         virtual void SetPhimin(Double_t phimin)
         virtual void SetRadius(Double_t radius)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)

Data Members

    private:

             Double_t fR1                  Radius of arc
             Double_t fPhimin              start phi (degrees)
             Double_t fPhimax              end phi (degrees)
             Double_t fTheta               used internally
      static Double_t fgDefaultWaveLength  default wavelength 
      static Double_t fgDefaultAmplitude   default amplitude
        static Bool_t fgDefaultIsCurly     default curly type

Class Description

 This class implements curly or wavy arcs typically used to draw Feynman diagrams.
 Amplitudes and wavelengths may be specified in the constructors,
 via commands or interactively from popup menus.
 The class make use of TCurlyLine by inheritance, ExecuteEvent methods
 are highly inspired from the methods used in TPolyLine and TArc.
 The picture below has been generated by the tutorial feynman.

________________________________________________________________________

 create a new TCurlyarc with center (x1, y1) and radius rad.
 The wavelength and amplitude are given in percent of the line length
 phimin and phimax are given in degrees.

*-*-*-*-*-*-*-*-*-*-*Create a curly (Gluon) or wavy (Gamma) arc*-*-*-*-*-*
*-*                  ===========================================

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

   static Int_t ncalls = 0;
*-*- Compute distance of point to center of arc

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

  If Left button clicked on one of the line end points, this point
     follows the cursor until button is released.

  if Middle button clicked, the line is moved parallel to itself
     until the button is released.

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

Inline Functions

               void ~TCurlyArc()
          TCurlyArc TCurlyArc(Double_t x1, Double_t y1, Double_t rad, Double_t phimin, Double_t phimax, Double_t wl = .02, Double_t amp = .01)
           Double_t GetRadius() const
           Double_t GetPhimin() const
           Double_t GetPhimax() const
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
          TCurlyArc TCurlyArc(const TCurlyArc&)
         TCurlyArc& operator=(const TCurlyArc&)