doc/v622/graphpolar2_8C.html

void graphpolar2()

{

   TCanvas * CPol = new TCanvas("CPol","TGraphPolar Example",500,500);


   Double_t theta[8];

   Double_t radius[8];

   Double_t etheta[8];

   Double_t eradius[8];


   for (int i=0; i<8; i++) {

      theta[i]   = (i+1)*(TMath::Pi()/4.);

      radius[i]  = (i+1)*0.05;

      etheta[i]  = TMath::Pi()/8.;

      eradius[i] = 0.05;

   }


   TGraphPolar * grP1 = new TGraphPolar(8, theta, radius, etheta, eradius);

   grP1->SetTitle("");


   grP1->SetMarkerStyle(20);

   grP1->SetMarkerSize(2.);

   grP1->SetMarkerColor(4);

   grP1->SetLineColor(2);

   grP1->SetLineWidth(3);

   grP1->Draw("PE");


   CPol->Update();

   grP1->GetPolargram()->SetToRadian();

}

Double_t
double Double_t
Definition: RtypesCore.h:57

TAttLine::SetLineWidth
virtual void SetLineWidth(Width_t lwidth)
Set the line width.
Definition: TAttLine.h:43

TAttLine::SetLineColor
virtual void SetLineColor(Color_t lcolor)
Set the line color.
Definition: TAttLine.h:40

TAttMarker::SetMarkerColor
virtual void SetMarkerColor(Color_t mcolor=1)
Set the marker color.
Definition: TAttMarker.h:38

TAttMarker::SetMarkerStyle
virtual void SetMarkerStyle(Style_t mstyle=1)
Set the marker style.
Definition: TAttMarker.h:40

TAttMarker::SetMarkerSize
virtual void SetMarkerSize(Size_t msize=1)
Set the marker size.
Definition: TAttMarker.h:41

TCanvas
The Canvas class.
Definition: TCanvas.h:27

TCanvas::Update
virtual void Update()
Update canvas pad buffers.
Definition: TCanvas.cxx:2433

TGraphPolar
To draw a polar graph.
Definition: TGraphPolar.h:22

TGraphPolar::GetPolargram
TGraphPolargram * GetPolargram()
Definition: TGraphPolar.h:39

TGraphPolar::Draw
void Draw(Option_t *options="")
Draw TGraphPolar.
Definition: TGraphPolar.cxx:102

TGraphPolargram::SetToRadian
void SetToRadian()
The Polar circle is labelled using radian.
Definition: TGraphPolargram.cxx:935

TGraph::SetTitle
virtual void SetTitle(const char *title="")
Change (i.e.
Definition: TGraph.cxx:2324

TMath::Pi
constexpr Double_t Pi()
Definition: TMath.h:38