> -----Original Message-----
> From: Pasha Murat [SMTP:[log in to unmask]]
> Sent: Wednesday, February 03, 1999 7:49 PM
> To: Rob Shanks
> Subject: Root CLHEP
>
>
>
> Rob Shanks writes:
> > Hello Pasha, my name is Rob Shanks. I'm working with Richard
> > Dubois, at SLAC, on the simulation package for the next generation
> of
> > linear collider detector. We just had Rene Brune in here talking to
> us
> > about Root and answering any questions we had about it.
> > We are currently working in event reconstruction tools such as
> > thrust axis and jet finders. We were originally planning to use the
> > CLHEP package to do most of the vector manipulation and
> calculations but
> > Rene informed us that you had developed a much more comprehensive
> group
> > of routines for Root. It is our understanding that these routines
> aren't
> > available in the current version of Root so we were wondering how
> we
> > would go about obtaining them?
> >
>
> Hi Rob,
> i'm currently working on a physics vector classes to be added
> to ROOT physics package and also on interfaces to MC event generators.
> THese classes will be released on a time scale of 1-2 weeks (may be
> even
> earlier). In principle CLHEP is not a bad choice but is misses quite a
> few
> very handy routines
> (for example, CLHEP 3-vector doesn't know about its pseudorapidity and
> there
> is no way to calculate delta(phi) between 2 3-vectors... other than to
>
> do it by hands). With CLHEP being
> essentially frosen package it is not quite clear how to add to it
> features
> it is missing right now. As you certainly know, ROOT has a pretty
> decent
> general purpose linear algebra package and it would be hihighly
> desirable
> to have also a ROOT-compliant package of physics vectors.
>
> I'll keep you informed.
>
> BTW, you might heard that in hte end of March there will be a US ROOT
> users
> workshop - check out URL
> http://runIIcomputing.fnal.gov/root/
>
>
> regards, pasha
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