[mcstas-users] MCSTAS_FORMAT=gnuplot leads to wrong 1D detector output

[André Kusmin]

Dear Peter,
I am sorry, I forgot some basic rules of a bug report.

I have Slackware 14.1  64 bit multilib , and I had this problem for both 
McStas 2.1 and McStas compiled from svn.
Some things do not work on Slackware out of the box, so I tested if this 
problem is reproducible on Debian.
And it is the same behaviour on Debian.
  ( DebianEdu/Skolelinux  Release:    7.8 (wheezy)  Arch: amd64 )
where I installed McStas 2.1  stable release using following sequence
apt-get install mcstas-manuals-2.1
(this installed    mcstas-2.1 mcstas-comps-2.1 mcstas-manuals-2.1 )
  apt-get install mcstas-suite-python
then I manually installed pgplot5_5.2.2-19_amd64.deb
and then
apt-get install mcstas-suite mcstas-suite-perl mcstas-tools-perl-2.1 
libpgplot-perl

The strangest thing to me is that when I run instrument-executable 
compiled on Debian  (e.g. TestSANS.out)
on a machine with no mcstas (mcplot,etc) installed
I will get wrong 1D detector output file ! (with only one column out of 
four) if I will issue
MCSTAS_FORMAT="gnuplot" before running
Setting MCSTAS_FORMAT="something" also leads to wrong results

So, I can't see how mcplot or other auxillary McStas tools can be a 
source of the problem

I will test this behavior on Mac Os Maverics next time I will boot into 
MacOs.

Hope this helps,
Andre

> Dear Andre,
>
>
> With which version of McStas did you experience this? - Under some very special circumstances McStas 2.0 can exhibit this type of issue.
>
> It would also help to try reproducing the problem to know the exact system you are running on, i.e. what OS and which version.
>
> I firmly believe the setting of MCSTAS_FORMAT to gnuplot will not affect anything: In the internal c-code of McStas the “gnuplot” format is actually unhandled and we revert to the traditional McStas or PGPLOT format. The setting of gnuplot only affects the tool-layer, i.e. mcplot etc.
>
>
> Best,
>
> Peter
>

-- 
Dr André Kusmin
Department Radiation Science and Technology
Faculty of Applied Sciences
Delft University of Technology
Mekelweg 15
2629 JB Delft
the Netherlands

phone:  +31 (0)15 278 4701
fax:    +31 (0)15 278 8303
e-mail:  a.kusmin at tudelft.nl