RubberEdge: Reducing Clutching by Combining Position and Rate Control with Elastic Feedback

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 positionrate 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. ACM Classification: H5.2 [Information interfaces and presentation]: User Interfaces. - Graphical user interfaces General terms: Design, Human Factors

• Type: Journal
• Year: 2008
• Where: CORR
• Authors: Géry Casiez, Daniel Vogel, Qing Pan, Christophe Chaillou
• Keywords: Control Device, CORR 2008, Education, Position Control, Precise Selection