Re: [ROOT] TH2 & TProfile2D draw options

From: Olivier Couet (Olivier.Couet@cern.ch)
Date: Mon Jul 29 2002 - 12:32:07 MEST


 Hi Mike,

 Is the way you would like to have the errors "suspended" fro 2D
histograms something like this:

http://wwwinfo.cern.ch/asd/paw/tutorial/tut034.html       ?

 Note also that PAW has also a "colored way" to represent the errors on
2D histograms. It is is illustrated here:

http://wwwinfo.cern.ch/asd/paw/tutorial/tut033.html

we may also think to put a such representation in ROOT.

 Cheers,       Olivier Couet 

On Fri, 26 Jul 2002, Rene Brun wrote:

> 
> Hi Mike,
> 
> Your first point is not obvious to implement as you propose.
> 
> For your second point, move to 3.03/07. Several improvements have been
> made by Olivier Couet in the past few weeks.
> 
> Rene Brun
> 
> 
> On Tue, 23 Jul 2002, Mike Kordosky wrote:
> 
> > Hi,
> > 
> > Is there a way to visualize the errorbars in a 2D histogram?  I'm thinking
> > of polymarkers w/ errors suspended over the x,y plane or something
> > similar.
> > 
> > Also, I seem to have problems seeing colors when drawing a 2D with the
> > "col" option.   I can see colors if I give the "lego2" option. However, if
> > I give "lego2 z" the there is a non colored colorscale drawn along the z
> > axis.  Can anyone help?  I've poked around in TStyle, but the only
> > candidate TStyle:SetPallete() doensn't have any effect on the z scale...
> > 
> > I use root 3.03/02 on a linux pc.
> > 
> > -- 
> > Graduate Research Assistant  // High Energy Physics Lab
> > kordosky@hep.utexas.edu     // University of Texas at Austin
> > kordosky@fnal.gov	   //
> > ph: (512) 471-8426 (RLM Lab, Office)
> >     (512) 475-8673 (ENS Lab)
> > 
> 
> 



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