Hi Jacek,
The Notify function is a good place to open your additional
files and set the branch addresses (it was invented for this kind of
problems).
What is your question?
Rene Brun
On Wed, 17 Apr 2002, Jacek M. Holeczek wrote:
> Hi,
> Thanks for reply.
>
> > What you do is extremely innefficient. You destroy the Root cache.
> Yes I realize that, but I could not find any solution.
>
> > Instead, open the same file twice (in addition to the selector) with
> This is a NO NO.
> In "one shot" I analyze 8 ntuples which reside on 4 different files using
> the same selector.
> I need to do everything from inside of the selector, where only the
> "tree" pointer is known / given.
> Then ... somewhere in "Notify" I would need to "prepare" the
> copies of these specific branches, something like this :
> fChain->SetBranchAddress("x",&x1); // uses variable x1
> b_x1 = fChain->GetBranch("x"); // get the original branch pointer
> b_x0 = CloneMyBranch(b_x1); // first "copy" of b_x1
> b_x0->SetBranchAddress(&x0); // first "copy" uses variable x0
> b_x2 = CloneMyBranch(b_x1); // second "copy" of b_x1
> b_x2->SetBranchAddress(&x2); // second "copy" uses variable x2
> Can I do it somehow ?
>
> Thanks in advance,
> Jacek.
>
This archive was generated by hypermail 2b29 : Sat Jan 04 2003 - 23:50:50 MET