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GRAPHICSINTERFACE
2009

Separability of spatial manipulations in multi-touch interfaces

10 years 21 days ago
Separability of spatial manipulations in multi-touch interfaces
Multi-touch interfaces allow users to translate, rotate, and scale digital objects in a single interaction. However, this freedom represents a problem when users intend to perform only a subset of manipulations. A user trying to scale an object in a print layout program, for example, might find that the object was also slightly translated and rotated, interfering with what was already carefully laid out earlier. We implemented and tested interaction techniques that allow users to select a subset of manipulations. Magnitude Filtering eliminates transformations (e.g., rotation) that are small in magnitude. Gesture Matching attempts to classify the user's input into a subset of manipulation gestures. Handles adopts a conventional single-touch handles approach for touch input. Our empirical study showed that these techniques significantly reduce errors in layout, while the Handles technique was slowest. A variation of the Gesture Matching technique presented the best combination of s...
Miguel A. Nacenta, Patrick Baudisch, Hrvoje Benko,
Added 18 Feb 2011
Updated 18 Feb 2011
Type Journal
Year 2009
Where GRAPHICSINTERFACE
Authors Miguel A. Nacenta, Patrick Baudisch, Hrvoje Benko, Andy Wilson
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