You can use a TArrow. This will accept pad-coordinates (i.e. in the same
scale as the coordinates in your Histogram/Graph/Axis). However, the
log-scale will be scaled in decades.
Marco van Leeuwen
{{
gROOT->Reset();
TCanvas *c1=new TCanvas("c1","Canvas #1",500,500);
gPad->SetLogy();
gPad->DrawFrame(0,1,1,1000);
TArrow *arrow=new TArrow(0.3,2,0.3,1.5);
arrow->Draw();
}}
On 27 Jun 2000 lijowski@cosray2.wustl.edu wrote:
>
> Hello,
>
> Is any way to draw an arrow on linear-log plot? I would like
> to use arrow to indicate the upper limit. Should I use TGraph
> to draw it?
>
> Thank you and regards
>
> Michal Lijowski
>
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