Re: AddFriend treeviewer

From: Rene Brun <>
Date: Tue, 14 Nov 2006 15:21:50 +0100

Hi Luca,

In the CVS head, I have added support for TTree friends. The code should also work in principle for TChains, but so far, I tested it only for single TTrees.
I would appreciate your feedback if you could download the CVS head.

Rene Brun

Luca Grandi wrote:
> Hi all,
> I have added to a chain1 other two chains (chain2 and chain3) with the
> AddFriend command. The chains are made by tree file containing trees with
> the same identical structure apart the tree name (they have equal branch and
> variable names). I am able to draw chain2 and chain3 data using the syntax
> <chainname>.<branchname>.<varname> but executing the command
> chain1->StartViewer
> I can graphically access only to variables of chain1. Is there a way to see
> all the variables also in treeviewer?
> I use ROOT 5.13.02.
> Thank you
> Luca
Received on Tue Nov 14 2006 - 15:21:56 MET

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