Odot Tlatex symbol does not look well

Newbie
1

Hi there! I’ve been trying to generate a plot with the odot symbol in it.

The template I use for the plot in C++ is:

  gROOT->Reset();
  TStyle *pdStyle= new TStyle("MyStyle","My style");
  pdStyle->SetFrameBorderMode(0);
  pdStyle->SetCanvasBorderMode(0);
  pdStyle->SetPadBorderMode(0);
  pdStyle->SetPadColor(0);
  pdStyle->SetCanvasColor(0);
  pdStyle->SetStatColor(0);
  pdStyle->SetPaperSize(20,26);
  pdStyle->SetPadTopMargin(0.11);
  pdStyle->SetPadRightMargin(0.05);
  pdStyle->SetPadBottomMargin(0.16);
  pdStyle->SetPadLeftMargin(0.12);
  pdStyle->SetTextSize(0.034);
  pdStyle->SetLabelSize(0.03,"x");
  pdStyle->SetTitleSize(0.04,"x");
  pdStyle->SetLabelSize(0.03,"y");
  pdStyle->SetTitleSize(0.04,"y");
  pdStyle->SetLabelSize(0.03,"z");
  pdStyle->SetTitleSize(0.03,"z");
  pdStyle->SetTitleOffset(1.2,"x");
  pdStyle->SetTitleOffset(1.5,"y");
  pdStyle->SetHistLineWidth(1);
  pdStyle->SetLineStyleString(2,"[12 12]");
  pdStyle->SetErrorX(0.001);
  pdStyle->SetOptTitle(1);
  pdStyle->SetOptStat(0);
  pdStyle->SetOptFit(1);
  pdStyle->SetStatFontSize(0.02);
  pdStyle->SetPadTickX(1);
  pdStyle->SetPadTickY(1);
  pdStyle->SetLineWidth(1);
  gROOT->SetStyle("MyStyle");

The, I add a TLatex to the canvas:

TCanvas* c1=new TCanvas("c1","c1",430,400);
[...]
TLatex *tTitle7 = new TLatex( 125, 6.5e-8, "#color[6]{bkg_{#scale[1.4]{#odot}}}");
tTitle7->SetTextSize(0.033);
tTitle7->Draw();

The problem with this TLatex is that the odot seems a bit weird, not as a circle but as some kind of amorphous body (see flux300right.pdf ) Is there a way to correct it?

Thanks in advance!
M.

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ROOT Version: Not Provided
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2

@couet, our graphics expert, will take a look once he’s back next week

3

Hi,

It is rounding artifact in TLatex processor.

Fix rounding problem in circle drawing in latex parser by linev · Pull Request #13425 · root-project/root · GitHub will fix the problem.

Regards,
Sergey

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