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Posted on October 13, 2009
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Introducing AS3 Multitouch Gesture Demo Application/Utility

On my last project I had to use a gesture to initiate an event. Due to this, I recently started experimenting in creating a simple multitouch version of some gesture engines that are available. I’ve come across three that are already available in AS3 and chose to start with the $1 gesture algorithm http://depts.washington.edu/aimgroup/proj/dollar/. It only seems fitting to start with this one since Andy Wilson of microsoft research (and many multitouch devices) had a hand in it’s development.

Introducing AS3 Multitouch Gesture Demo Application/Utility

Like most algorithms, this one matches points drawn with a template that’s already stored. After the gesture is finished, it is matched up against templates in the database and given a percentage of how much it matched it’s closest template

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Posted on July 23, 2009
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Flocking around with AS3 and Multitouch

For a while I’ve been interested in emergent behavior where simple rules can create complex behavior. One of the most known examples of such behavior is Craig Reynolds ‘boids’ where a few simple rules can recreate the flocking behavior of birds.

boids1 Flocking around with AS3 and Multitouch

I recently came across a great and clean example of some boids code by soulwire (make sure to check out his whole site; it’s great). Since we’ve seen various examples of this behavior on multitouch tables (like on the iBar), I decided to add some basic touch support to soulwire’s example. So, now we have it…multitouchable boids!

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