yade-dev team mailing list archive

[Jan Stránský <_honzik@xxxxxxxxxx>]

Sory for the first part of my last post, those lines of course have no effect on dynamic bodies :-)
Jan

>Hello,
>
>code in TranslationEngine:
>...
>if (!b->isDynamic())	b->state->pos+=dt*velocity*translationAxis;
>...
>
>code in RotationEngine
>...
>if (!b->isDynamic())	b->state->pos=q*l+zeroPoint;
>...
>
>if TranslationEngine works correct, I would try to use += (instead of = ) in RotationEngine.. (I am not familiar with quaternions yet, so maybe this is total nonsence :-)
>
>
>Another thing, I would normalize the translationAxis in TranslationEngine, or? as it is in RotationEngine.. If you double the vector of translationAxis, the resulting length of motion is also doubled?
>
>cheers
>Jan
>
>
>
>______________________________________________________________
>> Od: "Anton Gladky" <gladky.anton@xxxxxxxxx>
>> Komu: yade-dev@xxxxxxxxxxxxxxxxxxx
>> Datum: 19.11.2010 20:15
>> Předmět: Re: [Yade-dev] [Yade-users] Combining engines prescribing movement
>>
>>Hi,
>>
>>I have started to create regression tests for Translation and Rotation 
>>engines. No problems with translation engine. But rotation engine gives 
>>strange results with dynamic bodies.
>>
>>Can it be, that NewtonIntegrator does not handle properly velocities, 
>>got from Rotation engines?
>>I will try to finish those regression tests soon.
>>
>>Thanks for suggestions.
>>
>>Anton
>>
>>_______________________________________________
>>Mailing list: https://launchpad.net/~yade-dev
>>Post to     : yade-dev@xxxxxxxxxxxxxxxxxxx
>>Unsubscribe : https://launchpad.net/~yade-dev
>>More help   : https://help.launchpad.net/ListHelp
>>
>
>_______________________________________________
>Mailing list: https://launchpad.net/~yade-dev
>Post to     : yade-dev@xxxxxxxxxxxxxxxxxxx
>Unsubscribe : https://launchpad.net/~yade-dev
>More help   : https://help.launchpad.net/ListHelp
>