Hi Rene,
Thanks for mail. I tried your script. Still, it is drawing an ellipse.
I am working on detector geometry. I need better accuracy in drawing a
circle. Is it possible in ROOT ? I am also attaching the figure that I
got after running the script. Please enlighten me.
With regards,
manoj
On Tue, 2005-01-11 at 21:55, Rene Brun wrote:
> see your example modified below
>
> Rene Brun
>
>
> {
> gROOT->Reset();
> c1 = new TCanvas("c1");
> //compute the pad range to get a fix aspect ratio
> Double_t w = gPad->GetWw()*gPad->GetAbsWNDC();
> Double_t h = gPad->GetWh()*gPad->GetAbsHNDC();
> Double_t xmin = 0;
> Double_t xmax = 2;
> Double_t ymin = 0;
> Double_t ymax = xmax*h/w;
> c1->SetFixedAspectRatio();
> c1->Range(xmin,ymin,xmax,ymax);
> TPaveLabel pel(0.1,0.8,0.9,0.95,"Examples of Circle");
> pel.SetFillColor(42);
> pel.Draw();
> TEllipse el1(0.5,0.5,.2,.2);
> el1.Draw();
> }
>
> Manoj Kumar Jha wrote:
> >
> > Dear rooters,
> > I am trying to draw a circle using the attached script. But, I am
> > getting an ellipse (the figure is attached). Could you please let me
> > know where I am committing the mistake ?
> >
> > Thanks,
> > manoj
> > --
> > ***************************************************
> > Manoj Kumar Jha
> > Research Scholar
> > Department of Physics & Astrophysics
> > University of Delhi | Delhi - 110 007 | India
> > Phone : 91-11-27667036(O)
> > E-mail: Manoj.Jha_at_cern.ch
> > ***************************************************
> >
> > --------------------------------------------------------------------------------
> > Name: try.C
> > try.C Type: text/x-c++
> > Encoding: 7bit
> >
> > Name: figure.ps
> > figure.ps Type: Postscript Document (application/postscript)
> > Encoding: 7bit
-- *************************************************** Manoj Kumar Jha Research Scholar Department of Physics & Astrophysics University of Delhi | Delhi - 110 007 | India Phone : 91-11-27667036(O) E-mail: Manoj.Jha_at_cern.ch ***************************************************Received on Tue Jan 11 2005 - 17:38:40 MET
- application/postscript attachment: figure.ps
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