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Etch - A Study in Marking-Based Interaction

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Uploaded on Mar 23, 2010

From one perspective, this video explores the question, "Can one make a marking-based system where one could unambiguously draw a circle, then circle the circle to select it, and then perform an operation on the circled circle using a circle gesture to invoke the command?
Okay, this is not a question that pops up every day, nor is it one that on the surface seems like anything more than a superficial brain-teaser. But then, that question is just one means of getting to what this video is about by going to the extreme: how to avoid modes and maintain smooth flow in marking based interaction.
So, what this video illustrates is a simple test-bed to explore how to disambiguate marks as data, as scope specification, and as commands in a pen-based system.
The tapes relevance today is as much about its approach as the questions that it addresses.
This work was done in 1982-83 by William (Bill) Buxton, and his students Eugene Fiume, Ralph Hill, Alison Lee & Carson Woo at the Dynamic Graphics Project (DGP) at the University of Toronto.

Ref: Buxton, W., Fiume, E., Hill, R., Lee, A. & Woo, C. (1983). Continuous Hand-Gesture Driven Input. Proceedings of Graphics Interface '83, 9th Conference of the Canadian Man-Computer Communications Society, Edmonton, May 1983, 191-195.

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