Hi,
TGAxis::SetMaxDigits and TGAxis::GetMaxDigits are static function are should
be access without an object:
TGAxis::SetMaxDigits(2);
Cheers,
Philippe.
-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Alexander Wagner
Sent: Tuesday, August 19, 2003 7:07 AM
To: Roottalk
Subject: [ROOT] Customizing axis
Hi!
Don't know but maybe I'm just overlooking something obvious.
But as I'm searching for some hours now, maybe it's time to
"ask a human". :)
Consider several TGraph objects. In my plot I draw them in
one graph using
gr1->Draw("AC");
gr2->Draw("C");
gr3->Draw("C");
This works fine, but now I want to adjust the axis. E.g. I
want the y-axis to use exponetials, that is labels 1, 1.5,
2, 2.5 and so on and on top "x 10^-3" something like that.
If I get the docs correctly a TGraph creates a
TGaxis-Object for the axis and looking at TGaxis I see that
I should use SetMaxDigits() to achieve this.
Now I tried something like
gr1->GetXaxis()->SetMaxDigits(2);
But this doesn't work as on a closer look at GetXaxis I see
that it returns the TAxis and not the TGaxis. As far as I
can see I've no access to the the methods like
SetMaxDigits(). How would I set this values then? TAxis is
somewhat limited compared to TGaxis. Now if I got it
correctly TAxis uses TGaxis for drawing. So I should have
access to the members of TGaxis. Not? How?
Thanks for any help or work arround in advance!
--
Kind regards, / War is Peace.
| Freedom is Slavery.
Alexander Wagner | Ignorance is Strength.
----------------------------|
Theoretische Physik II | Theory : G. Orwell, "1984"
Universitaet Wuerzburg / In practice: USA, since 2001
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