Proceedings: GI 1996

Virtual pointing on a computer display: non-linear control-display mappings

Evan Graham

Proceedings of Graphics Interface '96: Toronto, Ontario, Canada, 22 - 24 May 1996, 39-46

DOI 10.20380/GI1996.05

  • BibTeX

     title = {Virtual pointing on a computer display: non-linear control-display mappings},
     author = {Evan Graham},
     booktitle = {Proceedings of the Graphics Interface 1996 Conference, May 22-24, 1996, Toronto, Ontario, Canada},
     year = {1996},
     month = {May},
     isbn = {0-9695338-5-3},
     publisher = {Canadian Human-Computer Communications Society},
     url = {},
     pages = {39--46}


Subjects' 3-D pointing movements were mapped to a 2-D computer display in three conditions as a function of hand speed: constant gain, discrete gain increase, and continuous gain increase. Analysis of hand and cursor kinematics demonstrated that discrete gain change provided no real advantage, and p:rformance suffered with continuous gain change as movement proftles were disrupted. Reduced footprint was traded for increased difficulty in decelerating to the targets. A detailed analysis of movement time as a function of distance and target width suggests that a better strategy for improving pointing performance is to improve device resolution, and use higher constant control-display gain.