Post Processing

Hi,

I am having trouble getting my animation to save correctly. I have made animations in Paraview before, but this is the first time that I get this problem.

When I go to File-Save Animation, I select the frame rate etc. The sequence of .jpg's starts, but after 70 or so files are created, the files no longer show the model, just a blank paraview screenport without any results.

The problem only seems to occur when I render the particles as spherical glyphs. When I save the animation just with the points (not very esthetically pleasing) all the .jpg's get created correctly.

Not too sure what is going on here... When I look at my results in Paraview, I have particles that disappear and re-appear. I use the v.manyGran() method to create the vtk files.

It looks like I have particles that are at rest that are just vanishing and coming back. I think that it is simply a display issue, I think that the particles are always there, but that they are just not displayed all the time.

Could it be due to my dummyfile format?

All the pertinent files are attached.

Thank you,

Kirk

Hi all
there are 2 primery questions.
I have installed CFDEM project newly and I could run Conveyor case in tutorials of LIGGGHTS. dump files in post folder are ready but I can not visualize these results.
1) I tryed to run Pizza.py in order to convert dump files to vtk as following:
I typed the following path in a terminal in post directory:
/root/LIGGGHTS/mylpp/src/pizza.py

But the results are:

Pizza.py (LPP 1.0 based on pizza - 7 Oct 2011), a toolkit written in Python
type ? for help, CTRL-D to quit
Loading tools ...
Display not available ... no GUIs

Hi,

I would like to know if there is a way to "smooth" the stress and weat results for the dump mesh/gran/VTK?

As you can see in the attached image, the stress and wear contours have discontinuities (discrete changes from one mesh element to another).

Of course this is strictly a cosmetic thing, but as most consultants can appreciate, clients really like to see "pretty colors".

Thank you,

Kirk

Hi all!
I'm trying to extract some parts of the data, and for this purpose I'm trying to create a new field with 'Calculator' function of paraview. The idea is to access the particle positions and calculate their radial position. The problem is, that when I'm trying to access the particle positions, the particle velocities are picked up. Any idea how the access to the particle positions correctly via 'Calculator' or in some other way? I'm using the liggghts_reader, which works quite nicely. The particle positions seems to be displayed correctly.

Kindest Regards,

Hi to all,
does anybody knows an easy way to get the circumferential and radial velocity components

of atoms in a rotating system with ParaView? I know that there is the Calculator Filter in ParaView and I also have my “Bronstein” on the desk, but i was hoping that maybe somebody had prepared something before...

Many thanks in advance,
Daniel

Sorry for this message...
After some tests and reboots, the lpp command works fine now... ;)

Dear LIGGGHTS community,

I'm sorry to bother you again with this problems, but I'm still having trouble to convert my dump.file to .vtk.
I run the in.pour example (in the pour-dev LIGGGHTS'examples) which gives me a dump.pour file like this :

ITEM: TIMESTEP
200
ITEM: NUMBER OF ATOMS
68
ITEM: BOX BOUNDS
-0.05 0.05
-0.05 0.05
0 0.15
ITEM: ATOMS id type type x y z ix iy iz
42 1 1 -0.00224217 -0.00922029 0.0513882 0 0 0
52 1 1 0.00878174 -0.00526709 0.0508027 0 0 0

Hi,

I am trying to use the liggghts reader plugin for Paraview.

I downloaded the precompiled reader for PV3.12.0 "libliggghts_reader_64bit_PV312.so".

From the Tools-Manage Pluggins, I clicked on Load new button. This is the error that I get when I try to add the file "libliggghts_reader_64bit_PV312.so"

ERROR: In /home/opencfd/OpenFOAM/ThirdParty-2.1.x/ParaView-3.12.0/ParaViewCore/ClientServerCore/vtkPVPluginLoader.cxx, line 296
vtkPVPluginLoader (0x1fbe300): libIceTMPI.so: cannot open shared object file: No such file or directory

I'm trying to load/view a liggghts log file using lpp. I'm using:

Pizza.py (LPP 1.0 based on pizza - 7 Oct 2011), a toolkit written in Python


Following the documentation included in the tarball, I type the following from within python:

lg = log("log.liggghts")


And this is the error I get:

325 for line in lines:
326 words = line.split()
--> 327 self.data.append(map(float,words))
328
329 # print last timestep of chunk
ValueError: invalid literal for float(): WARNING:

Hi, everybody

When i'm trying to get the force chain in a particle assembly using dump2force.py dump.fc.1000.liggghts i got thir error:

Error - dump file requires all parameters from a compute pair/gran/local id pos force (11 in total)