Hi Francesco,
please specify your version of ROOT.
Regards. Valeriy
----- Original Message -----
From: "Perfetto Francesco" <Francesco.Perfetto@na.infn.it>
To: <roottalk@pcroot.cern.ch>
Cc: <rene.brun@cern.ch>
Sent: Wednesday, October 16, 2002 1:52 PM
Subject: [ROOT] Problem with TBrowser
> Hello ROOTers,
> I have a problem with TBrowser, after to create my root file in which
> there is a tree with TLorentzVector, if I draw down cint my variables
> there isn't problem but if I want draw my variables directly from
> TBrowser, it draw always the same variable (not change the picture in
> the canvas).
> {...
>
> TLorentzVector *p4dateta = new TLorentzVector();
> TLorentzVector *p4datetasys_pim = new TLorentzVector();
> TLorentzVector *p4datetasys_pip = new TLorentzVector();
> TLorentzVector *p4datetasys_piz = new TLorentzVector();
>
> TTree *tdat = new TTree("tdat","Tree for resolution");
>
> tdat->Branch("dalix_dat" ,&dalix_dat ,"dalix_dat/D" );
> tdat->Branch("p4dateta" ,"TLorentzVector" ,&p4dateta);
> tdat->Branch("p4datetasys_pim","TLorentzVector" ,&p4datetasys_pim);
> tdat->Branch("p4datetasys_pip","TLorentzVector" ,&p4datetasys_pip);
> tdat->Branch("p4datetasys_piz","TLorentzVector" ,&p4datetasys_piz);
>
> ...
> }
> if i do after opening the TBrowser:
> tdat->Draw("p4datetasys_pim.fE"); // this OK
> tdat->Draw("p4datetasys_pip.fE"); // this OK
> ...
> but if click on the leaf in the TBrowser don't change null from the
> first pictures.
> Where is the Problem ?
>
> Francesco.
>
>
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