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[Chareyre <585898@xxxxxxxxxxxxxxxxxx>]

I renamed the bug.
Closing is dangerous because scaleDisp only revealed an existing problem somewhere (it is similar to crashing for NaN vels in Newton when there is a problem in constitutive law). 
I propose to keep it open as long as we can't make sphere-facet interactions work properly. 


** Summary changed:

- Dem3DofGeom::scaleDisplacemenT is buggy
+ sphere-facet geometries are bugy (ScGeom/Dem3Dof)

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https://bugs.launchpad.net/bugs/585898

Title:
  sphere-facet geometries are bugy (ScGeom/Dem3Dof)

Status in Yet Another Dynamic Engine:
  Confirmed

Bug description:
  When I run examples/rotatingCylinder.py with bzr2255 (default profile) I got a crash after several iterations. Seems it related with velocityBins mechanism:

 Yade [1]: INFO  yade.VelocityBins /home/sega/work/yade/trunk/pkg/common/DataClass/VelocityBins.cpp:33 setBins: New number of bins: 5
FATAL yade.VelocityBins /home/sega/work/yade/trunk/pkg/common/DataClass/VelocityBins.cpp:77 setBins: Body #4483, velSq=nan not put in any bin!?
Crash!