Hi Elena,
Use a '.' at the end of the branch name.
_isltup->Branch("CDF_TRACKs.", "TTrkBlock", &Trks, bufsize,split);
_isltup->Branch("Ele_TRACKs.", "TTrkBlock", &EleTrks, bufsize,split);
Note that to copy a subset of a Tree to a new Tree (subset of branches or
events), you do not need to write a class. You can use directly TTree::CopyTree.
Rene Brun
Elena Vataga wrote:
>
> Hello, rooters!
>
> Would be most thankful to you for advice!
>
> I was trying to do the following: save in TTree 2 branches:
> 1. all tracks found in event (~50-60 tracks/event)
> 2. tracks with associated hit in EM calorimeter (~1-3 trks/event)
>
> To do it, wrote a class TTracks derived from TObject and
> made 2 branches:
>
> TTrkBlock* Trks; // TClonesArray of TTracks
> TTrkBlock* EleTrks;
> TTree* _isltup;
> ....
> Trks = new TTrkBlock;
> EleTrks = new TTrkBlock;
> ...
> _isltup->Branch("CDF_TRACKs", "TTrkBlock", &Trks, bufsize,split);
> _isltup->Branch("Ele_TRACKs", "TTrkBlock", &EleTrks, bufsize,split);
>
> The problem I have:
> each of branches by itself (when I book ONLY
> "CDF_TRACKs" or ONLY "Ele_TRACKs") is filled correctly.
> When I am trying to book both branches - they are identical
> because TTrack class is the same, so variables names are the same..
> Is there a way to use the same class to write in 2 different branches
> with different selection criteria?
>
> Thank you in advance,
> Elena
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