(Fwd) Re: Root++?

From: Valery Fine (Valeri.Faine@cern.ch)
Date: Fri Feb 28 1997 - 12:48:16 MET


------- Forwarded Message Follows -------
Date:          Fri, 28 Feb 1997 12:19:35 +0100 (MET)
From:          Ole Streicher <ole@ifh.de>
Subject:       Re: Root++?


It was. I started the first tutorial example and got this "hello,
world", and then I looked into the menus.

Then I searched "root files" but this was empty (grmpf).

At some time, I got a core dump (Linux/lesstiff 0.77). I restarted
root and ... ofcourse: the same way run the hello-world example from
the tutorial (I didn't read much more there :-(), and the root file
(created with h2root) was there in a subdir
.../home/ole/Root/j123.root

But, when I clicked at one of the left buttons, this icon vanished and
I didn't get it back. So I had to restart it again...

In the meantime I got the mail that I can use "TBrowser B", ok this is
faster.

Then  just clicking on the directory name, then on the file name and
there I got my hists.

Maybe, the root tutorial should (for stupid people like me) not start
with programming but with a chapter "How can I explore my histograms
with root?". This should contain: - h2root usage - TBrowser B - where
to find the files I want - just the basics what happens with the left,
middle (???) and right
  click of the mouse.

 > > How can I zoom in a histogram? I didn't find the option for it. >
   What did you mean?

The hists go from (x axis) -500 to 500. The interesting region for me
in only -10 to 10.

Tschuessi

Ole
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Dr. Valery Fine                  Telex : 911621 dubna su
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Dr. Valeri Faine
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