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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