Computer Science – Human-Computer Interaction
Scientific paper
2008-04-03
Dans Proceedings of the 20th annual ACM symposium on User interface software and technology - Symposium on User Interface Soft
Computer Science
Human-Computer Interaction
10 pages
Scientific paper
10.1145/1294211.1294234
Position control devices enable precise selection, but significant clutching degrades performance. Clutching can be reduced with high control-display gain or pointer acceleration, but there are human and device limits. Elastic rate control eliminates clutching completely, but can make precise selection difficult. We show that hybrid position-rate control can outperform position control by 20% when there is significant clutching, even when using pointer acceleration. Unlike previous work, our RubberEdge technique eliminates trajectory and velocity discontinuities. We derive predictive models for position control with clutching and hybrid control, and present a prototype RubberEdge position-rate control device including initial user feedback.
Casiez Géry
Chaillou Christophe
Pan Qing
Vogel Daniel
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