mcdisplay

[Kristian Nielsen]

> Dear Dr. Lefmann,
> 
> we are currently trying to install the mcstas package at
> PSI. Mcstas works perfectly, but we have a problem with the
> mcdisplay command.
> The error which we get when trying to use it is "Segmentation fault
>  (core dumped)". Do you have any idea what the reason could be?

Well, that is difficult to say without more information. But the most
likely cause is a problem with the PGPLOT library and the pgperl
interface between this library and Perl.

Could you try running the following one-line command:

  perl -e 'use PGPLOT;pgbeg(0,"/xserv",1,1);pgenv(0,1,0,2,0,"");pgend'

and send me the output? This is a small Perl program that uses PGPLOT;
if it works it should produce a window with an empty graph in it.

Also information on the machine and operating system you were using
would be helpful.

 - Kristian.

--
Kristian Nielsen        kristian.nielsen at risoe.dk
Risø National Laboratory
Condensed Matter Physics and Chemistry Department
Tel. +45 4677 5515   Fax +45 4677 4790