Hi Denis, A TObjArray cannot be split by definition because its items may be any TObject*. If all the objects in the TObjArray are of the same class, then replace your TObjArray by a TClonesArray and you will get an automatic split. Note that the version 3.03 contains a new TBranch constructor: Branch(TCollection *list, Int_t bufsize=32000, Int_t splitlevel=99) that creates one sub-branch for each element in the collection. Rene Brun On Tue, 5 Mar 2002, Denis Bertini wrote: > > Hi rooters, > > I have a class Event that contains a "TObjArray *" pointer as datamenber. > so like > > class Event : public TObject{ > // ... > TObjArray *myArray; // > //... > }; > > I put this Class Event in a top-level branch of TTree so: > > Event *event = new Event(); > TBranch *br= tree->Branch("Event.","MyEvent", > &event1,4000,99); > > so with splitlevel = 99 (max) > > I see that the TObjArray is not splitted, is there any reasons for that? > I know that in the new ROOT version there is a special "Branch" method > for TObjArray 's and that you have to create this splitting by hand, but > everything > is created a new "top-level" branches which is not suitable in my case. > Any hints? > Denis > > > > >
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