Marco,
Thank you for your example. But in my plot the x axis has a log scale
and I want to draw an arrow along y axis which has a linear scale.
Michal Lijowski
> From mvl@nikhef.nl Tue Jun 27 19:35:05 2000
> Delivered-To: lijowski@cosray2.wustl.edu
> Date: Tue, 27 Jun 2000 21:08:19 +0200 (MET DST)
> From: Marco van Leeuwen <mvl@nikhef.nl>
> To: lijowski@cosray2.wustl.edu
> Cc: roottalk@pcroot.cern.ch
> Subject: Re: [ROOT] TArrow question
> MIME-Version: 1.0
>
> 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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