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[Anton Gladky <897237@xxxxxxxxxxxxxxxxxx>]

Christian, you script does not crash, if you keep the radii's constant.
I think the more proper way is to erase the particle and create a new one
in the same position but with the different radius.

I have slightly modified your script, which does it.
Please, see an attachment.
It does not crash, but gives a couple of warnings. Not sure it is 100% correct,
but it works.

Please, have a look at it.

PS Sorry, I am not able to participate actively in discussion now.

Anton


** Attachment added: "macropore_neverErase.py"
   https://bugs.launchpad.net/bugs/897237/+attachment/2612160/+files/macropore_neverErase.py

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https://bugs.launchpad.net/bugs/897237

Title:
  bug in neverErase?!

Status in Yet Another Dynamic Engine:
  New

Bug description:
  If I set neverErase=True Yade crashes with following output:

  O.run(3000,True)                                                                                                                                                                                             
  RuntimeError: std::exception 

  and also:

  Traceback (most recent call last):                                                                                                                                                                               
    File "/home/me/YADE/YADE2970/lib/yade-bzr2970/py/yade/qt/__init__.py", line 192, in refreshEvent                                                                                                       15:01:13
      self.refreshValues()                                                                                                                                                                                 15:01:30
    File "/home/me/YADE/YADE2970/lib/yade-bzr2970/py/yade/qt/__init__.py", line 265, in refreshValues                                                                                                      15:01:34
      s=int(t); ms=int(t*1000)%1000; us=int(t*1000000)%1000; ns=int(t*1000000000)%1000                                                                                                                             
  ValueError: cannot convert float NaN to integer  

  
  You can reproduce the bug with the attached script (similar to the one i submitted with version 2960).
  First try to set Law2_ScGeom_MindlinPhys_Mindlin(neverErase=False), this will work.
  Then set neverErase=True and yade crashes.

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