Hi Anton,
Please note that, as of now, SetVirtual has not effect on leaves created
using the new I/O scheme. So unless you also did
TTree->SetBranchStyle(kFALSE); you should not see any differences.
Currently all new style branches have a behavior equivalent to
SetVirtual(kFALSE) (i.e. you can only store one actual type of object
in those branches).
We will implement the other behavior during Autumn.
Cheers,
Philippe.
-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Anton Fokin
Sent: Wednesday, August 01, 2001 8:36 AM
To: roottalk
Subject: [ROOT] SetVirtual in TTree leaf
Hello,
I would like to use SetVirtual(kFALSE) feature in non-split mode. Could you
please check if I am doing right thing below. I do not observe any size
reduction in NO COMPRESSION mode.
Basically my question is: should it be "Daily" leaf of the tree "TDaily"
leaf of "Daili" branch?
Regards,
Anton
OutDailyTree = new TTree("DailyTree", "Daily tree");
OutDailyTree ->Branch("Daily", "TDaily", &fDaily, fBasketSize,
fSplitMode);
if (fSplitMode == 0)
((TLeafObject*)OutDailyTree->GetLeaf("Daily"))->SetVirtual(kFALSE);
if (!InDailyTree)
Warning("Rebuild", "No input daily tree");
else
OutDailyTree ->CopyEntries(InDailyTree);
OutDailyTree ->Write();
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