Re: a short question

From: claudio <claudio.manzato_at_gmail.com>
Date: Thu, 31 Aug 2006 13:12:06 +0200


mmmmh, you're right! I've read the manual and I should have notice it... sorry and very thanks

Just a fashion note:
with the SURF1 option, the colours are bounded with the scale in a way that e.g. the red occupy always the same fraction of the axis even a use a logarithmic scale. With the TRI1 option, the colour scale is bounded with the values, so the red is associated always with the same value-range. If I change scale, the coulor associated with the lower range occupy the most of the space.
These are surely two different philosophy, of which I prefer the first because the plot is more "readable". There's a way to switch from one to the other?

Cheers, Claudio

PS: ROOT version 5.11/02

On 8/31/06, Olivier Couet <couet_at_mail.cern.ch> wrote:
>
>
> Hi,
>
> With the option SURF1 it is difficult to define the concept of "wall" as
> you mean here. With SURF1 an histogram is drawn and the empty bins are
> normal bins and therefore are part of the surface. But TGraph2D provides
> specific options to draw what you what. Try TRI1 instead of SURF1.
>
> Cheers, Olivier Couet
>
> On Wed, 30 Aug 2006, claudio wrote:
>
> > Hi roottalk;
> >
> > I've a 3Dplot:
> >
> > TGraph2D* foo = new TGraph2D("foo.dat");
> > foo->Draw("surf1");
> > gPad->SetLogz(1);
> >
> > I'm interested only at the "floating valley"; I don't want the two wall
> at
> > the sides.
> > I understand why they appear, but I don't know how make a plot without
> > them...
> >
> > Thanks to anyone can help me
> > Claudio
> >
>
> --
> Org: CERN - European Laboratory for Particle Physics.
> Mail: 1211 Geneve 23 - Switzerland Mailbox: J25910
> E-Mail: Olivier.Couet_at_cern.ch Phone: +41 22
> 7676522
> WWW: http://cern.ch/Olivier.Couet/ Fax: +41 22
> 7670300
>
Received on Thu Aug 31 2006 - 13:12:19 MEST

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