[ROOT] problem with the creation of a tree

From: Hadjidakis Cynthia (hadjida@ipno.in2p3.fr)
Date: Mon Nov 06 2000 - 09:49:29 MET 

Hi,

I use the root 2.25 version.
I have a problem with the split level of the Branch method :

tree=new TTree(name,title);
tree->Branch("event","TClasEvent",&event,100000,0);

I have some arguments to my class TClasEvent (FLoat_t beam_energy,...). 

TCLasEvent::TClasEvent(){
 fNtrack = 0; 
   if (!gTracks) gTracks = new TClonesArray("TTrack", 5);
   fTracks = gTracks;
//.....
   beam_energy = -1;

}

If I make a tree with the split level 1, it  seems ok. But with the split
level 0, when I read the beam_energy data , I have anything. 

Is there something else to do ?

Thank you, Cynthia

This archive was generated by hypermail 2b29 : Tue Jan 02 2001 - 11:50:36 MET