Multiscale pointing: facilitating pan-zoom coordination

  • Authors:
  • Frédréric Bourgeois;Yves Guiard

  • Affiliations:
  • CNRS and Université de la Méditerranée, France;CNRS and Université de la Méditerranée, France

  • Venue:
  • CHI '02 Extended Abstracts on Human Factors in Computing Systems
  • Year:
  • 2002

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Abstract

In a laboratory experiment on multiscale pointing, we compared one-handed vs. two-handed input for two zoom-control devices, a wheel vs. a mini-joystick with an all or none response. Using a recent method of quantifying multiple degree-of-freedom (DOF) input coordination to evaluate pan-zoom parallelism, we confirm previous work [1] showing that multiscale pointing performance strongly depends on the degree of pan-zoom parallelism. The new finding is that two-handed input and a constant zoom speed allow more input parallelism, thereby increasing performance speed.