Hi Sue,
I am aware of this limitation. Removing it will require some work
in TBranchElement constructor and in the UnRoll function.
Rene Brun
On Sat, 21 Sep 2002, Susan Kasahara wrote:
> Hi rooters,
> I have a question regarding TTree branch splitting & TClonesArrays.
>
> I have a class with a datamember that is a pointer to a TClonesArray:
> class Event: public TObject {
> ...
> private:
> TClonesArray* array; // stores objects of type Track
> };
>
> When I store objects of class Event on a ROOT TTree in splitmode = 99, e.g.
> TTree* tree = new TTree("test","test tree");
> Event* event = 0;
> tree -> Branch("Event","Event",&event,64000,99);
>
> I find that the datamembers of the Tracks stored in the TClonesArray
> are split over multiple branches in the TTree as is desirable.
>
> Now, when I create a class that derives from Event, e.g.:
>
> class SpecialEvent: public Event {
> ...
> };
>
> and store objects of class SpecialEvent on a ROOT TTree in splitmode = 99,
> I find that the datamembers of the Tracks stored in the base class Event's TClonesArray are no
> longer split over multiple branches.
> Is there a way to request that the base class TClonesArray be split or is there
> a reason for this limitation?
> I am using root cvs 9/15/02 on rh linux using gcc 2.95.3.
> Thanks in advance,
> -Sue
>
>
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