PGPERL and PGPLOT

[Kristian Nielsen]

> Date: Wed, 15 Sep 1999 17:09:08 +0200
> From: Farhi <farhi at ill.fr>

> Hello Kristian,
> <p>Concerning the PGPERL problem, I could install sucessfully the packages
> pgplot 5.2, and PerlDL, but PGPerl doesn't pass the test phase.

Well, I would really like to aolve this problem; a lot of our users
experience this. Could you give me an account on the machine on which
you have the problems so that I could check out the problem directly? I
already have an account on grill (or whatever) to get through the ILL
firewall, and I should be able to do without root access in case that
would be a problem.

I did solve a similar problem on Suse Linux using an account in Germany,
and it would be really nice to have this working on RedHat also.

Regarding the 4D ellipsoid, I was not sure if you were refering to the
production of the simulation data or the visualization? The simulation
is described briefly in our ECNS paper, of which I can send you a copy
if you like. The visualization is produced using PDL's 3D graphics
primitives. Basically, we do a russian roulette to eliminate the neutron
weight from the Monte Carlo simulation and plot the points as a function
of Qx, Qy, and omega. I am currently in Oxford on a vt300 terminal and
so I do not have easy access to the graphics of McStas, however I will
get back to you when I return late next week. I would be happy to send
you the code that produced the graphics Kim showed you; also this code
will likely be included in the next release of McStas.

 - Kristian.