TRandom::Sphere

Hi everybody,
there is something strange in TRandom::Sphere. To get the three random numbers used in the generation, Sphere calls gRandom->Rndm() instead of Rndm() as done in all the other TRandom methods. Is there a reason for that?

I'm reporting because we had some problems in the randome number sequence control when using a TRandom that is not gRandom. Here a silly example:

rndm = new TRandom3;
rndm->SetSeed(1234567);
rndm->Sphere(x,y,z); // gRandom is used here instead of rndm

Thanks,
Alessandro

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  Alessandro Thea
  Ph.D. Student
  Dipartimento di Fisica dell'Universita' di Genova and
  Istituto Nazionale di Fisica Nucleare, Sezione di Genova,
  Via Dodecaneso 33, I-16146, Genova, Italia.
  
  Tel : +39 010 3536468               E-Mail: Alessandro.Thea_at_ge.infn.it
  Cell: +39 349 2724919


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