Re: TH1F with the following feature

From: Rene Brun (Rene.Brun@cern.ch)
Date: Fri Jan 07 2000 - 16:32:00 MET


Hi Jayoung,
With the current version of Root, you cannot do that directly.

Our development version includes a new class (TExec). TExec is a small
class that can execute any CINT command (macro) when a pad event occurs.
For example, we have an example macro automatically called when the
mouse
points to a pad containing a TH2F histogram. The macro displays the
projection X correcponding to the bin along Y corresponding to teh
current mouse position.
This new facility is extremely powerful and should simplify the writing
of interactive applications using the mouse via calls to interpreted
code.

I will demonstrate some examples at the coming Root workshop.

Rene Brun

Jayoung Wu wrote:
> 
> Hi,
> 
> I have a 1D histogram plot:
>   TH1F *scnlayer = new TH1F("scnlayer","energy deposit profile",43,0,43);
>   for (Int_t i=0; i<43; i++)
>       scnlayer->Fill(i,escn1x[i]);
>   scnlayer->Draw("");
> 
> Now I want to add one feature:
>   When I click the histogram(of energy deposit) it shows the other related
>   values for that bin. For example, when I click the 3rd bin it shows the
>   adc-count for that bin.
>   ^^^^^^^^^^^^^^^^^^^^^^
>     adcscn1x[2]
> 
> How can I add those features? Is there any similar and simple example?
> 
> ---
> Thanks,
> Jayoung
> 
>



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