TLegend broken in 5.34/18? bad text alignment

ROOT
1

Hi,

In recent Root versions, the text in the TLegend is not aligned anymore with the line illustrating the TGraph that’s being plotted. Is there any workaround?

Cheers
Moritz

c1.png796×603 4.01 KB

[code]{
TCanvas *c1 = new TCanvas(“c1”, “c1”,54,451,800,630);
gStyle->SetOptTitle(0);

TGraph *graph = new TGraph(4);
graph->SetName(“UID84”);
graph->SetTitle(“Graph”);
graph->SetLineWidth(4);
graph->SetPoint(101,3.096641751,-0.01163311115);
graph->SetPoint(102,3.126609252,-0.01163311115);
graph->SetPoint(103,3.141593002,-0.01163311115);
graph->SetPoint(104,3.141593002,-0.02035794337);
graph->Draw(“al”);

TLegend *leg = new TLegend(0.1934673,0.5801047,0.5037688,0.9441536,NULL,“brNDC”);
leg->AddEntry(“UID84”,“leg entry”,“l”);
leg->Draw();
}[/code]

2

With:

TLegend *leg = new TLegend(0.1934673,0.5813953,0.5037688,0.7043189,NULL,“brNDC”);

It is fine.
I’ll check

3

Hi,

Yes, when you rescale it it is fine. But I have an automatic script that fills 1 or 2 or any number of entries into a legend. Of course I could write the code that resizes the legend pad on the fly, but I was hoping to avoid that.

Thanks for looking into it!

Moritz

4

I just committed a fix in both 5.34 and 6.00.
Thanks for reporting.

5

Hi,
Thanks for fixing! How do I pick it up? Like this?

git clone -b v5-34-00-patches root.cern.ch/git/root.git root-5-34-patch-git
cd root-5-34-patch-git/
git checkout -b v5-34-18 v5-34-18

Cheers
Moritz

6

I usually to a full clone and checkout the 5.34 version coming with

7

Hi,

So I tried the patch, and indeed the little test script now renders fine. But unfortunately my production script still has the same problem :frowning: See attached.

Also I noticed that now, when I resize things in the plot, nice yellow arrows appear that indicate the distance to other objects in the plot. I like!

Cheers
Moritz
gammacombo_educationalGgsz_xm_dk.C (61.9 KB)

8

I’ll check

Distance, size compared to other and alignment :slight_smile: like in tools like PowerPoint or Keynote.

9

Now fixed in 6.01 and 5.34. The pixel size case was not taken into account.
Thanks for reporting.

10

Hi,
Now fixed indeed! Thanks!
Moritz