[PD] gyro sensors to absolute rotation WAS: Re: gimbal lock solution?

[Cyrille Henry]

Le 09/02/2013 21:11, Roman Haefeli a écrit :
> On Sam, 2013-02-09 at 16:41 +0100, Cyrille Henry wrote:


> Yeah, right. But you can add the values up to get rotation (of course,
> it's always rotation relative to itself, which will obviously drift from
> reality over time).
yep.
drift usually make this useless.

>
>> in theory (with infinite acurate sensors, no drift etc), you have to
>> do a feedback loop (using gemlist_info), so that the current rotation
>> is modify by the sensors value.
>> (rotation did not sums up)
>
> ...parsing solution .... beep...... stack overflow (in my head)!
>
> You mean you add each increment (gyro measurement) to the rotation
> separately, then get the orientation with gem_list info, add the next
> increment to the orientation, get orientation again, add increment etc?
> Can you cast that into a little Gem example patch, if it is not too much
> trouble?

yes.
see attachment.
cheers
c

>
> Roman
>
>
>
> _______________________________________________
> Pd-list at iem.at mailing list
> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: gyro_2_absolute.pd
Type: application/puredata
Size: 1192 bytes
Desc: not available
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20130210/14c8f63c/attachment.bin>