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[jimtianxi <question190723@xxxxxxxxxxxxxxxxxxxxx>]

New question #190723 on Yade:
https://answers.launchpad.net/yade/+question/190723

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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