Re: put class elements in a tree

Hi,

On Monday 25 January 2010 03:34 AM, Massimiliano Chiorboli wrote:
> Hi All,
> I have a problem in storing an array of classes into a tree using tree->Branch() method.
> I declare and appropriately fill an array of Classes (created by me) of kind e.g. "Particle"
>
> Particle myPartcle[N_PART];
>
> Is it possible and, if so, what is the correct syntax for creating a branch containing the myParticle array?
> I tried with:
>
> tree->Branch("particle", myParticle, 32000, 99);
>
> but this stores into the tree only the first element of the array.
> Thanks.

Have you tried looking into TClonesArray[1]? Take a look at $ROOTSYS/tutorials/tree/tcl.C

[1]http://root.cern.ch/root/html/TClonesArray.html

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Suvayu

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