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[Bruno Chareyre <1474956@xxxxxxxxxxxxxxxxxx>]

** Changed in: yade
   Importance: Undecided => Medium

** Changed in: yade
     Assignee: (unassigned) => Bruno Chareyre (bruno-chareyre)

** Changed in: yade
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1474956

Title:
  Clump::updateProperties discretization not defined robustly

Status in Yade:
  Confirmed

Bug description:
  Most likely the reason for performance drop reported in [1]

  dx in the voxel decomposition is minRad/discretization.
  The problem is when a sphere of radius 1 is member of a clump which aabb has the size 1000 (for instance).
  Using the minimal discretization=1 gives a number of voxel = 1e9 in such case and it is no possible to go below this number.
  I think discretization should refer to aabb size, not member size. I have this fixed locally, let me know if you agree with the fix.

  [1] https://answers.launchpad.net/yade/+question/268954

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