Keeping tracking media numbers consecutive is just work around until the problem is fixed; in AliRoot, geometry is defined via TVirtualMC and not directly via TGeo, so this problem does not happen here. Ivana ============================================================== e-mail: Ivana.Hrivnacova@cern.ch address: Institut Physique Nucleaire, 91406 Orsay, France phone: (33) 01 69 15 65 94 ============================================================== On Thu, 8 Jul 2004, Laurent Aphecetche wrote: > Ivana Hrivnacova wrote: > > Hi Laurent, > > > > The problem is in numbering of tracking media; > > untill it is solved (in TGeant3), change your media ids > > in this way: > > > > //fImedAIRF = 19; > > //fImedAIRLOWF = 18; > > fImedAIRF = 1; > > fImedAIRLOWF = 2; > > > > Best regards, > > > > Ivana > > Hi Ivana, > > Thanks. So it means tracking medium numbers must be consecutive, right ? > Is there a clever way to insure this in a real-world example with many > sub-detectors ? e.g. how this is achieved in AliRoot ? > > Regards, > --
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