Re: [ROOT] 2-d histogram in 3-d

From: Rene Brun (Rene.Brun@cern.ch)
Date: Thu Dec 21 2000 - 18:53:53 MET


Hi Phil,
Could you clarify what you want to do.
If you want something looking like the surfaces.C example, you should fill
a TH2F (not a TH3F) with a loop on
   h2->Fill(x,y,z)
and then  h2->Draw("surf")

see also the example in $ROOTSYS/tutorials/draw2dopt.C

Rene Brun


> Phil Taddei wrote:
> 
> Sorry about the file size problem.
> 
> I was able to create a three-dimensional histogram with TH3F by making the z
> component increase by one for every bin of x vs. y (see attachment).  I am
> impressed with the surfaces.C example, and I would like to make my histogram
> look like it.  The histogram must be created by actual data for x and y.  Any
> ideas on how to do a better three-dimensional histogram?
> 
> Thanks.
> Phil Taddei
> 
>                 Name: c1.jpg
>    c1.jpg       Type: JPEG Image (image/jpeg)
>             Encoding: base64



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