Yade

Simulation problem about paraview display

Asked by jimtianxi

This problem has troubled me for a long time. The simulation process is seen all right in the 3d view of yade itself, but in paraview, after some steps, the spheres move obviously by mistake. For example, some spheres are appended in a box, and a tool interacts with them. The spheres cannot go out of the box. I can see the whole simulation process in yade 3d view, and it's all correct. But when I put the datas in paraview, the problem comes. In the beginning, the simulation looks well, but after some steps, usually at the half part or 3/4 of the simulation process, the spheres begin to move out of the box together. Sometimes they move along one direction together, and sometimes they expand along all the directions equably. The display is obviously wrong, but the total shape after movement looks very similar with the true process. But when I hide the spheres view, and only observe the interactions, I find the interactions are all right. The interaction force lines are all in the box. So, in a word, all the simulation process is correct in yade 3d view, and all the interactions in paraview also look correct, only the spheres positions offset a certain value. It seams that the former simulation results impact on the later simulations. But whether I shut up my computer nor restart to delete the former tmp datas, the problem exists. In addition, to the same simulation program, the problem occurs at different step in different simulation process, each time is different from others. Please help me, thank you!!

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Anton Gladky (gladky-anton) said : 		#1

Hi,

what version of paraview do you use? What operating system?

I saw a similar problem about a year ago. Now it is gone.

Anton

Revision history for this message
jimtianxi (jimtianxi) said : 		#2

ParaView 3.10.1 32-bit
Windows XP SP3, and Linux 2.6.32-33-generic-pae #72-Ubuntu
Under each operating system, the problem occurs.
An example as the attachment shows.
The spheres move out of the box ,but the shape seems right. The interactions are in the box.

At 2012-03-15 14:41:12,"Anton Gladky" <email address hidden> wrote:
>Your question #190723 on Yade changed:
>https://answers.launchpad.net/yade/+question/190723
>
> Status: Open => Answered
>
>Anton Gladky proposed the following answer:
>Hi,
>
>what version of paraview do you use? What operating system?
>
>I saw a similar problem about a year ago. Now it is gone.
>
>Anton
>
>--
>If this answers your question, please go to the following page to let us
>know that it is solved:
>https://answers.launchpad.net/yade/+question/190723/+confirm?answer_id=0
>
>If you still need help, you can reply to this email or go to the
>following page to enter your feedback:
>https://answers.launchpad.net/yade/+question/190723
>
>You received this question notification because you asked the question.

Revision history for this message
Anton Gladky (gladky-anton) said : 		#3

> ParaView 3.10.1 32-bit

Try to use more fresh version of Paraview.
Current one is 3.14

Anton

Revision history for this message
jimtianxi (jimtianxi) said : 		#4

Is that the key problem? Did you avoid this problem by changing the version of paraview? Is it related to the version of yade? I'm using yade-0.60.2

At 2012-03-15 17:40:55,"Anton Gladky" <email address hidden> wrote:
>Your question #190723 on Yade changed:
>https://answers.launchpad.net/yade/+question/190723
>
> Status: Open => Answered
>
>Anton Gladky proposed the following answer:
>> ParaView 3.10.1 32-bit
>
>Try to use more fresh version of Paraview.
>Current one is 3.14
>
>Anton
>
>--
>If this answers your question, please go to the following page to let us
>know that it is solved:
>https://answers.launchpad.net/yade/+question/190723/+confirm?answer_id=2
>
>If you still need help, you can reply to this email or go to the
>following page to enter your feedback:
>https://answers.launchpad.net/yade/+question/190723
>
>You received this question notification because you asked the question.

Revision history for this message
Anton Gladky (gladky-anton) said : 		#5

> Is that the key problem? Did you avoid this problem by changing the
> version of paraview? Is it related to the version of yade? I'm using
> yade-0.60.2

No idea, I did nothing and the problem is gone. But I think it is more
paraview-related question.

Do you have any specific reasons of not using newer versions of yade?
0.70.0 is not so far form 0.60.2, so you should, probably try.

Anton

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