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[Bug 398089] Re: Body::isDynamic semantics is not clearly defined

To: yade-dev@xxxxxxxxxxxxxxxxxxx
From: Václav Šmilauer <eudoxos@xxxxxxxx>
Date: Fri, 28 May 2010 20:00:40 -0000
Reply-to: Bug 398089 <398089@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

the Δt changing during the step can be an issue for a particular
ordering of engines (such as TranslationEngine, then time stepper, then
integration with different Δt than was for TranslationEngine); for me,
it is not important.

-- 
Body::isDynamic semantics is not clearly defined
https://bugs.launchpad.net/bugs/398089
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Status in Yet Another Dynamic Engine: Confirmed

Bug description:
Does isDynamic means that Newton's laws skip the body? Or that forces don't contribute to its velocity? Various Translation/RotationEngines rely by convention on that Newton's laws skip the body completely.

There was a discussion on that topic http://thread.gmane.org/gmane.science.physics.yade.devel/1059 and we should draw conclusions now.