[ROOT] Re: MakeClass and friends

From: Dr. John Krane (jkrane@netzero.com)
Date: Fri Jul 11 2003 - 19:47:02 MEST


Hi,

So MakeClass doesn't recognize friends.  (I'll spare you my list of 
jokes that work with that theme...)

In that case, is there a good way to make several Trees into one Tree? 
 It looks like I could load both files, "Get" both trees (tree1 and 
tree2), do a

TBranch *newbranch = tree1->Branch( ch_ptr, "myclass", &myclass, 
bufsize, 3);

just like when I made the original trees.  So now tree1 has two 
branches, one full, one empty.  Then, uh, I dunno, how about,

newbranch->SetAddress( &(tree2->GetBranch("mybranch_name")) );

...and then write tree1 to a file.  Will this work?  I see that there is 
no CloneBranch or similar.

    - John



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