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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