Hi,
It seems to be impossible to override the automatic axis scaling in
TGraph when you draw it with the "a" option.
I found this in the digest:
From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed Mar 20 2002 - 10:33:17 MET
a.. Next message: Rene Brun: "Re: [ROOT] TGaxis"
b.. Previous message: Rene Brun: "Re: [ROOT] TGeant3, TGeant4 from
AliSoft"
c.. In reply to: Steffen Grohmann: "[ROOT] SetRangeUser Problem on
Y-axis"
d.. Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
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Hi Steffen,
When you use the option "a" in TAxis::Draw, the axis limits are
automatically recomputed from the range of the actual Y values.
You can force a max/min of the y axis via TAxis::SetMaximum/SetMinimum.
An alternative solution is to use TPad::DrawFrame.
Rene Brun
but TAxis doesn't have SetMaximum or minimum does it?
I do this:
gAdcPhNear[l]->Draw("AP");
gAdcPhNear[l]->SetMinimum(0);
but it still gets drawn with the minimum above zero. Why doesn't this
work? Can it be made to work?
Has anyone found a solution to this problem? I could always draw a
histogram first with the appropriate scale, but that's ugly!
Thanks,
Jeff.
p.s. using latest root on redhat 7.3.1
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