Movie with Paraview?

Submitted by Silias on Mon, 04/04/2011 - 16:20

Hello,

When I'm processing the dump-files of the example "pour-dev" I get a file named tmp.vtk. After opening this one with Paraview, I am not able to see the particles falling and so on - I just see all the positions over time of all particles in one picture. Where is the problem?
Do I have to tell it to LAMMPS/LIGGGHTS that it should dump in a different way?

Thanks in advance!

Forums:

JF's picture

JF | Mon, 04/04/2011 - 16:27

Hi,

Do you extract the tmp.vtk files from pizza.py by following this command:

d=dump("dump.mySimulation")
d.scale()# the scale is sometimes necessary, not systematically
v=vtk(d)
v.manyGran()

In Paraview, do you use Glyph to visulize the spheres ?

Regards
JF

Silias | Wed, 04/06/2011 - 13:51

Hi JF,

thanks very much, with your commands everything is working fine!
Yes :) but now, as you already assumed, I cannot visualize the spheres... I tried to use Glyph, but I don't really know how it works. Can you help me with this issue?

Thanks in advance,
Silias

JF's picture

JF | Wed, 04/06/2011 - 15:53

Hi Silias,

You have two possibilities to visualize the particles with Paraview:

1) Point Sprite (the best one) :

Different steps given by Andrea :
a) In Paraview, you need to select the Point Sprite plugin
b) Point Sprite Mode: Sphere
c) Scale by: radius
d) Edit radius transfer function: untick Use Scalar Range and tick Proportionnal

2) Glyph:

a) You need to select the Glyph.
b) In the Glyphs properties you choose:
Scalars: radius
Glyph type: Sphere
Radius: 1.0
Scale Mode: scalar
Set Scalar Factor: 1.0

You have to untick: Mask points and Random Mode

Regards
JF

carlesbp | Fri, 02/28/2014 - 16:43

Hi, my name is Carles and I am facing the same problem. I try to follow the procedure specified. I can only convert as much dump files as I write in the function , and the converted files are pictures of each time step. How can I get the animation in Paraview?
My actual procedure is:

I place myself in the post folder with all the dump files.
I call pizza.py and start with the
Then I get the tmp.vtk file.

Many thanks in advance!!!

Carles

carlesbp | Fri, 02/28/2014 - 16:48

Sorry, the comment is missing the function I am calling after initializing pizza:

d = dump("dump.name of my dump file")