Curve dial: eyes-free parameter entry for GUIs

  • Authors:
  • Grham Smith;m. c. schraefel;Patrick Baudisch

  • Affiliations:
  • University of Southampton, UK;University of Southampton, UK;Microsoft Research, Redmond, WA

  • Venue:
  • CHI '05 Extended Abstracts on Human Factors in Computing Systems
  • Year:
  • 2005

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Abstract

In this demonstration, we introduce "curve dial" a technique designed to extend gesture-based interactions like FlowMenus with eyes-free parameter entry. FlowMenus, let users enter numerical parameters with "dialing" strokes surrounding the center of a radial menu. This centering requires users to keep their eyes on the Menu in order to align the pen with its center before initiating a gesture. Curve dial instead tracks the curvature of the path created by the pen: since curvature is location-independent, curvature dialging does not require users to keep track of the menu center and is therefore eyes-free. We demonstrate curvature dial with the example of a simple application that allows users to scroll through a document eyes-free.