[WiiFlash] Wiimote "Z" space & other data

[Merrill, Jason]

Nobody?  Surely several people here have done this before.    

Really, if someone could just explain how to take the Wiimote data and
translate that to moving an object to X and Y (and bonus - scaling or
"Z") locations, that would be great.  I've read a lot online about the
Wiimote, but having a hard time wrapping around how to translate that
to, for one example, Flash X and Y coordinates.  

Jason Merrill
Bank of America  
Learning & Leadership Development for Global Technology & Operations
eTools & Multimedia Research & Development

 

>>-----Original Message-----
>>From: wiiflash-bounces at osflash.org 
>>[mailto:wiiflash-bounces at osflash.org] On Behalf Of Merrill, Jason
>>Sent: Friday, November 16, 2007 10:34 AM
>>To: wiiflash at osflash.org
>>Subject: Re: [WiiFlash] Wiimote "Z" space & other data
>>
>>>>You could have a look at this page (or at least the diagram), it 
>>>>helped me to somewhat make sense of the data coming from 
>>the Wiimote:
>>>>http://www.wiili.org/index.php/Motion_analysis. 
>>
>>Thanks Alex.  I read that, there is a lot of useful stuff on 
>>there which I am still absorbing,  but a lot of it was 
>>somewhat greek to me.  I was hoping someone could show some 
>>Actionscript examples of converting input from the Wiimote 
>>into angles, degrees, X,Y, Z changes, etc.
>>
>>For an example of what I mean by a lot of it is greek to me 
>>on that page, quote: 
>>
>>"A(t) = R(t)(gz+Ar(t))+R(t)Ar(t) where R is the rotation 
>>matrix which transforms from the "living room frame" to the 
>>local frame of the remote, and At is the actual acceleration 
>>of the remote in the "living room frame". The rotation matrix 
>>is parameterized by 3 Euler angles, and the remote's linear 
>>acceleration has 3 components as well. With 6 dynamical 
>>variables, but only 3 observables, our system is underdetermined!"  
>>
>>Huh????  I wasn't a math major and I didn't think 
>>"underdetermined" was even a word until I wikipedia'ed it.
>>
>>I just want to figure out how to move a sprite/movieClip 
>>left, right, up, down, (and in-out scaling based on z-depth 
>>movement) on the stage based on Wiimote data. hmmph.  Anyone 
>>have any examples?  I have looked at some of John Grden/'s 
>>code on his blog, and that's useful too, but he's also mixing 
>>in a lot of other things - like a "plane" object for 
>>controlling an object in Papervision3D - so it's hard to pick 
>>parts of his code out that would be useful to me.
>>
>>Jason Merrill
>>Bank of America
>>Learning & Leadership Development for Global Technology & 
>>Operations eTools & Multimedia Research & Development
>>
>> 
>>
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