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added some schematic images and links to software packages
=Projection/Touch Surface=
=Projection/Touch Surface=
[[Image:EdgeTopView.png|200px|thumb|right|Top view schematic of the edge for measurement]]
[[Image:EdgeSideView.png|200px|thumb|right|Edge view schematic of the edge for measurement]]
Start off with a 4:3 aspect ratio so we can use a regular XVGA projector (1028x768).
Start off with a 4:3 aspect ratio so we can use a regular XVGA projector (1028x768).
A larger table would have a projection area of 48" x 36".
A larger table would have a projection area of 48" x 36".
=Table Frame Design=
=Table Frame Design=
Could use a drafting table.
[[Image:CurvyDraftingTable.jpg|200px|thumb|right|This drafting table would look neat as a touch table!]]
=Multi-Touch Software=
=Multi-Touch Software=
'''[http://gkaindl.com/software/touche Touche Cocoa Framework]'''
"Touché is a free, open-source tracking environment for optical multitouch tables. It has been written for MacOS X Leopard and uses many of its core technologies, such as QuickTime, Core Animation, Core Image and the Accelerate framework, but also high-quality open-source libraries such as libdc1394 and OpenCV, in order to achieve good tracking performance." Licensed under [http://www.gnu.org/copyleft/lesser.html LGPLv3].
'''[http://hci.rwth-aachen.de/multitouch MultiTouch.Framework]'''
"MultiTouch.framework is a native Cocoa multi-touch framework for Mac OS X. It uses the default event handling system and the responder chain of the operating system, providing a familiar application programming interface to Mac OS X developers. It is built upon a modular low-level architecture that unifies all touch events, with input units for different multi-touch input devices including FTIR, DI, iPhone/iPod touch, as well as any TUIO-based devices. Thus, as a developer, you do not need to care about the actual input device being used. One of the great advantages of this toolkit is that you can develop and test your multi-touch application on your standard desktop Mac, using your iPhone as multi-touch input device, without having to work at an FTIR table all the time."
There is a video at: http://youtube.com/watch?v=skZCBvWVu8A