[WiiFlash] The Wiimote z-Depth?
Merrill, Jason
jason.merrill at bankofamerica.com
Wed Dec 19 07:33:25 PST 2007
Ah -that makes sense to me now. So I can just check for the percentage
change in distance from when the user first starts up the app, in order
to determine how much distance has changed. Thanks, those are the
explanations I was looking for.
So "Sensor" X then has nothing to do with the "Sensor" bar? That's what
threw me off.
Jason Merrill
Bank of America
L&LD GT&O
eTools & Multimedia Research & Development
>>-----Original Message-----
>>From: wiiflash-bounces at osflash.org
>>[mailto:wiiflash-bounces at osflash.org] On Behalf Of Brad
>>Sent: Wednesday, December 19, 2007 5:52 AM
>>To: wiiflash at osflash.org
>>Subject: Re: [WiiFlash] The Wiimote z-Depth?
>>
>>its not the absolute distance between the lights that you're
>>interested in, but rather the (relative) distance between
>>those lights as seen from the remote ir camera. - ie. as you
>>move the remote away from the sensor bar, the apparent
>>distance between the lights will decrease. but make sure
>>you've got the remote a decent distance away from the sensor
>>bar- in my experience it behaves pretty eratically if you
>>bring the remote closer than a metre away from the sensor bar.
>>
>>
>>
>>Merrill, Jason wrote:
>>> OK, but what exactly are the two points? I don't mean to be
>>dense, but
>>> I thought the IR points were the actual lights inside the
>>sensor bar.
>>> So what is the difference between an IR point's x and the
>>sensor x?
>>> If it's actual points in the sensor, then can't you just
>>measure that
>>> distance with a ruler? LOL. This is confusing. You said,
>>"So if one
>>> point is exactly in the middle of the screen" - how is a "point"
>>> (whatever a point is) in the "middle of the screen" (when
>>the screen
>>> is not part of the detection hardware)? What then does
>>Sensor X and
>>> Sensor Y mean?
>>>
>>>
>>>
>>> Jason Merrill
>>> Bank of America
>>> L&LD GT&O
>>> eTools & Multimedia Research & Development
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>>> -----Original Message-----
>>>>> From: wiiflash-bounces at osflash.org
>>>>> [mailto:wiiflash-bounces at osflash.org] On Behalf Of
>>Patrick Matte |
>>>>> BLITZ
>>>>> Sent: Tuesday, December 18, 2007 6:25 PM
>>>>> To: wiiflash at osflash.org
>>>>> Subject: Re: [WiiFlash] The Wiimote z-Depth?
>>>>>
>>>>> Well it's just the distance between the 2 points... the
>>points x and
>>>>> y values are from 0 to 1. So if one point is exactly in
>>the middle
>>>>> of the screen, it's x is 0.5, and the other point could
>>be at 0.75.
>>>>> so you have a distance of 0.25 in the x axis. Do the same
>>for the y
>>>>> axis.
>>>>>
>>>>> And the formula to get the distance between two points is
>>>>> Math.sqrt((x*x)+(y*y)); But the formula is conveniently
>>available in
>>>>> the point class as a static method.
>>>>> flash.geom.Point.distance(point1,point2);
>>>>>
>>>>>
>>>>> BLITZ | Patrick Matte - 310-551-0200 x214
>>>>>
>>>>> -----Original Message-----
>>>>> From: wiiflash-bounces at osflash.org
>>>>> [mailto:wiiflash-bounces at osflash.org] On Behalf Of Merrill, Jason
>>>>> Sent: Tuesday, December 18, 2007 2:17 PM
>>>>> To: wiiflash at osflash.org
>>>>> Subject: Re: [WiiFlash] The Wiimote z-Depth?
>>>>>
>>>>> OK -thanks! So what does:
>>>>>
>>>>> var distance:Number =
>>>>> flash.geom.Point.distance(wiimote.ir.point1,wiimote.ir.point2);
>>>>>
>>>>> ...really tell you? That's the distance of what?
>>>>>
>>>>>
>>>>> Jason Merrill
>>>>> Bank of America
>>>>> L&LD GT&O
>>>>> eTools & Multimedia Research & Development
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: wiiflash-bounces at osflash.org
>>>>>>> [mailto:wiiflash-bounces at osflash.org] On Behalf Of
>>Patrick Matte |
>>>>>>> BLITZ
>>>>>>> Sent: Tuesday, December 18, 2007 4:53 PM
>>>>>>> To: wiiflash at osflash.org
>>>>>>> Subject: Re: [WiiFlash] The Wiimote z-Depth?
>>>>>>>
>>>>>>> I don't think you can figure out the real distance per se.
>>>>>>> The distance between the two points only gives you a reference.
>>>>>>>
>>>>>>> But what you could do is walk one meter from the ir sensor and
>>>>>>> save that distance value. Then walk 4 meters from the ir emitter
>>>>>>>
>>>>> and save
>>>>>
>>>>>>> that value. Then you could extrapolate any value in between
>>>>>>>
>>>>> those two.
>>>>>
>>>>>>> BLITZ | Patrick Matte - 310-551-0200 x214
>>>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: wiiflash-bounces at osflash.org
>>>>>>> [mailto:wiiflash-bounces at osflash.org] On Behalf Of
>>Merrill, Jason
>>>>>>> Sent: Tuesday, December 18, 2007 1:47 PM
>>>>>>> To: wiiflash at osflash.org
>>>>>>> Subject: [WiiFlash] The Wiimote z-Depth?
>>>>>>>
>>>>>>> Hey, Fabien's question reminded me of a related question I
>>>>>>>
>>>>> had. How
>>>>>
>>>>>>> do you all figure out the z-depth of the Wiimote from the
>>>>>>>
>>>>> Sensor bar?
>>>>>
>>>>>>> Do you use SensorZ somehow or ir1 and
>>>>>>> ir2 with some trig functions? have any sample Actionscript
>>>>>>>
>>>>> code for
>>>>>
>>>>>>> this? Thanks.
>>>>>>>
>>>>>>> Jason Merrill
>>>>>>> Bank of America
>>>>>>> L&LD GT&O
>>>>>>> eTools & Multimedia Research & Development
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> WiiFlash mailing list
>>>>>>> WiiFlash at osflash.org
>>>>>>> http://osflash.org/mailman/listinfo/wiiflash_osflash.org
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> WiiFlash mailing list
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>>>>>>>
>>>>>>>
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>>
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