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Message #01986
Re: clumps
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To:
yade-users@xxxxxxxxxxxxxxxxxxx
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From:
Janek Kozicki <janek_listy@xxxxx>
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Date:
Sat, 21 Nov 2009 09:46:10 +0100
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Face:
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In-reply-to:
<1258758594.4533.6.camel@flux>
Václav Šmilauer said: (by the date of Sat, 21 Nov 2009 00:09:54 +0100)
> > If somebody takes time to compute the correct inertia matrix, then
> > inertia will have to be rotated, I agree.
> Don't we have th same problem with regular bodies as well? Inertia
> matrix (body-local coords) is used unrotated in NewtonsDampedLaw to
> compute angularAcceleration (global coords)? Sega pointed taht out
> earlier already IIRC.
For sphere you don't need to rotate inertia matrix. It is symmetric
in all directions.
--
Janek Kozicki |
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