Hi rooters,
When one store into tree 2 branches with 2 objects which have the common
name of members (for example o1:{a,b,u} o2:{x,y,u}) the storing now
(Version 2.21/08) is fine.
But the access to this data is a bit misleading:
3 cases of access:
1) Num *n1 = new Num();
Num *n2 = new Num();
tree->SetBranchAddress("o1",&n1);
tree->SetBranchAddress("o2",&n2);
tree->GetEvent(3);
n1->Print();
n2->Print();
works correct
2) If one try to do it from browser: double click on the leaf "u" to draw
histogram it always drawn the values of the 1-st stored branch!!!
It is very surprising on the first sight because two different
branches looks really different. But most probably the using mechanizm
is the same as in case 3)
3) tree->Draw("u"); Always drawn the values of the 1-st stored branch.
In fact the way to address to the separate branch in the sintacsis of
this call is not exist.
I think that something should be corrected here. Especially the case 2)
is really dangerous, because compleatly misleading.
All files used for test could be found in
http://chorusdq.na.infn.it/root/
Best regards
Valeri
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