[X3D-Public] Accelerometer environment sensor

Dave dave at realmofconcepts.com
Wed Nov 18 09:40:43 PST 2009


Cool! Very clever that CSS guy. After I wrote this I realized that such 
things would be likely,
that external code could drive SAI, and that external code could 
(hopefully) access
such devices.

Keith Victor has been doing some thinking on a node for it. I would bet 
that BM and Fraunhofer
have too, not really sure. I can draft up something if nobody else has, 
would like others' input
of course.

While we are at it, access to the hardware compass and GPS would also be 
very nice. Again, probably
could be driven externally, but having them handy is also, well, handy.

Dave A.

Don Brutzman wrote:
> Dave wrote:
>> Be careful about culling the spec to fit the hardware. By the time
>> you're done, the hardware will be
>> at least twice as good as it currently is.
> yup.   i think we've done OK on that score.  i haven't seen any proposed
> spec changes that were motivated by hardware improvements (or 
> anachronisms).
>> Please add Accelerometer environment sensor, if such sensor make the 
>> cut.
> interesting, great idea Dave!  got proposal?  for starters we just need
> a node signature to define fields and some simple explanatory prose on
> how it works.  an little chunk of example scene would also be helpful.
> FYI there was a way cool demo at the W3C Tech Plenary TPAC meeting
> by the head of the Cascading Style Sheets (CSS) group + "CSS Strike 
> Force."
> He moved his laptop around to drive a car game as a web application.
> Apparently they were able to reach all the way down from the web browser
> to the hardware, where there was no special configuration but rather
> simply reading an accelerometer that already comes with the hard disk
> (to prevent crashes when moving around).  so we should expect that the
> accelerometer information will be widely available on almost every
> platform, not just mobile devices.
> http://ajaxian.com/archives/firefox-trunk-accelerometers-webgl-and-css-transitions 
> http://people.mozilla.com/~prouget/demos/resources/videos/mozOrientation.ogv 
> http://www.w3.org/2009/11/04-tpac-minutes.html#glazou
>> Daniel Glazman (Disruptive Innovations): The End of the Beginning
>> <arun> Note that glazou is tilting his screen
>> Daniel Glazman: demos of rotating cube, tilt detector ["level"] 
>> application (in 15 lines of code) and a game done is SVG that is in 
>> Canvas. Very simple
>> ... "font dragr" to test new fonts
>> Henry Thompson: The box you were holding has an accelerometer, right?
>> Daniel Glazman:Yes. All laptops have accelerometers in their hard 
>> disk drives to handle shocks.
>> Judy Brewer: How was the accessibility?
>> Daniel Glazman: I don't know.
>> <IanJ> [Reminder: feedback form, thanks!: 
>> http://www.w3.org/2002/09/wbs/35125/tpac2009-feedback/]
>> Judy Brewer: It looks neat. It would be great if the accessibility 
>> support right from the beginning. Can we be sure we can get you 
>> hooked up with the right people to help with that.
>> Chaals: the accessibility are in the hardware APIs, the hardware 
>> knows when it is working. We have to work on how we make that an 
>> acessible application (by making things like canvas accessible)
>> <IanJ> [Applause]
> all the best, Don

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