[Wien] Xcrysden works for structure view, not for electron density display

[Luc Fruchter]

Dear all,

Xcrysden works fine from the w2web interface (run locally), when viewing
a structure. So, I think it is correctly installed and configured.

However, it displays "requires X-Windows system ... Calc" when trying to
use the "Calculate density with Xcrysden" button, or "requires X-Windows
system ... Render" when I use the "Preview density button".

When I use the "Rhoplot" button, the density is correctly displayed (so
the density file must be ok).

( I use latest versions for Wien2k and Xcrysden).

Thanks for any help.

[Gavin Abo]

After you click the "Calculate density with XCrysden" button, 1) the
"Requires X-Windows system ... Calc" message appears immediately or 2)
does the XCrySDen program open, the "Choose 2D/3D Density Plot" window
appears (like that shown at
http://www.xcrysden.org/doc/wien.html#__toc__6 ), then the "Requires
X-Windows system ... Calc" message only shows up after you close XCrySDen.

If 2 above occurs, then that is normal and nothing is wrong.

If 1 above occurs, then there is a problem.  However, I'm not able to
reproduce the error with the information you have provided.  I'm using
the latest WIEN2k (17.1) and XCrySDen
(xcrysden-1.5.60-linux_x86_64-semishared [
http://www.xcrysden.org/Download.html ]) as well and the "Calculate
density with XCrysden" run locally in w2web seems to work fine for me. 
Without any additional hints you might have, the problem may go
unresolved like what happened to a user before [
https://www.mail-archive.com/***@zeus.theochem.tuwien.ac.at/msg15585.html
].

If you try the same thing in the terminal, does it work or provide any
additional information (like an error message).

For example, first navigate to the directory containing your case.struct
file:

***@computername:~/Desktop$ cd ~/wiendata/test
***@computername:~/wiendata/test$ ls test.struct
test.struct

Back out of the directory so that you are in the directory containing
your case folder and run the density calculation with XCrySDen [

Post by Luc Fruchter
Dear all,
Xcrysden works fine from the w2web interface (run locally), when
viewing a structure. So, I think it is correctly installed and
configured.
However, it displays "requires X-Windows system ... Calc" when trying
to use the "Calculate density with Xcrysden" button, or "requires
X-Windows system ... Render" when I use the "Preview density button".
When I use the "Rhoplot" button, the density is correctly displayed
(so the density file must be ok).
( I use latest versions for Wien2k and Xcrysden).
Thanks for any help.