Yade

visualization on fedora 15 install

Asked by Daniel J. Breton

Hello - sorry to post *another* installation question, but here it is:

I have tried installation on Fedora 15 via both tarball and bazaar for YADE 0.60 and 0.60.3 -- none of these installations seems to be able to run any of the visualization software. I have installed all of the required packages (I think) and the compilation does not give any errors, until I try to run an example.

My compilation command was:
scons PREFIX=/home/db/Codes/yade-0.60.3 optimize=1 features=gts,vtk,opengl,openmp,log4cxx

I think the simulation runs fine, but visualization does not. Here you can see that the options for visualization are missing in the Python shell (i.e. no F11 or F12 commands):

<code>
[db@sbox examples]$ ../bin/yade-0.60.3 tunnel-pack.py
Welcome to Yade 0.60.3
TCP python prompt on localhost:9000, auth cookie `sucaed'
XMLRPC info provider on http://localhost:21000
Running script tunnel-pack.py
No suitable packing in database found, running PERIODIC compression
2211 WARN yade.SpherePack /home/dbreton/Codes/yade-0.60.3/pkg/dem/SpherePack.cpp:156 makeCloud: Exceeded 1000 tries to insert non-overlapping sphere to packing. Only 2828 spheres was added, although you requested 3000
Packing saved to the database /tmp/triaxPackCache.sqlite
Traceback (most recent call last):
  File "../bin/yade-0.60.3", line 152, in runScript
    execfile(script,globals())
  File "tunnel-pack.py", line 30, in <module>
    from yade import qt
ImportError: cannot import name qt
[[ ^L clears screen, ^U kills line. F8 plot. ]]
Yade [1]:
</code>

Thanks for your time,
DAN

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Solved by:
Jérôme Duriez
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Revision history for this message
Best Jérôme Duriez (jduriez) said : 		#1

Hello,

The problem is :
from yade import qt
ImportError: cannot import name qt
(this "qt" concerns the visualisation, for example qt.View() let appear the visualization window)

Check with scons -h if there is a compilation option named "qt4", or "qtSOMETHING", I think it is the case, but I have no possibility to check myself (https://yade-dem.org/sphinx/prog.html#optional-libraries-features does not mention it)

If yes, add it to your features of scons command.

Revision history for this message
Jan Stránský (honzik) said : 		#2

Hi Daniel,

Try to complie with qt feature, i.e.
scons PREFIX=/home/db/Codes/yade-0.60.3 optimize=1
features=gts,vtk,opengl,openmp,log4cxx,qt

Jan

2011/9/19 Daniel J. Breton <email address hidden>

> New question #171651 on Yade:
> https://answers.launchpad.net/yade/+question/171651
>
> Hello - sorry to post *another* installation question, but here it is:
>
> I have tried installation on Fedora 15 via both tarball and bazaar for YADE
> 0.60 and 0.60.3 -- none of these installations seems to be able to run any
> of the visualization software. I have installed all of the required
> packages (I think) and the compilation does not give any errors, until I try
> to run an example.
>
> My compilation command was:
> scons PREFIX=/home/db/Codes/yade-0.60.3 optimize=1
> features=gts,vtk,opengl,openmp,log4cxx
>
> I think the simulation runs fine, but visualization does not. Here you can
> see that the options for visualization are missing in the Python shell (i.e.
> no F11 or F12 commands):
>
> <code>
> [db@sbox examples]$ ../bin/yade-0.60.3 tunnel-pack.py
> Welcome to Yade 0.60.3
> TCP python prompt on localhost:9000, auth cookie `sucaed'
> XMLRPC info provider on http://localhost:21000
> Running script tunnel-pack.py
> No suitable packing in database found, running PERIODIC compression
> 2211 WARN yade.SpherePack
> /home/dbreton/Codes/yade-0.60.3/pkg/dem/SpherePack.cpp:156 makeCloud:
> Exceeded 1000 tries to insert non-overlapping sphere to packing. Only 2828
> spheres was added, although you requested 3000
> Packing saved to the database /tmp/triaxPackCache.sqlite
> Traceback (most recent call last):
> File "../bin/yade-0.60.3", line 152, in runScript
> execfile(script,globals())
> File "tunnel-pack.py", line 30, in <module>
> from yade import qt
> ImportError: cannot import name qt
> [[ ^L clears screen, ^U kills line. F8 plot. ]]
> Yade [1]:
> </code>
>
> Thanks for your time,
> DAN
>
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Revision history for this message
Daniel J. Breton (daniel-j-breton) said : 		#3

First, thank you both for rapid responses -- I added "qt4" to the list of features in the scons call and it works very nicely.
Thanks again
DAN

Revision history for this message
Daniel J. Breton (daniel-j-breton) said : 		#4

Thanks jduriez, that solved my question.