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Sean Gustafson master of science thesis defense D ec 15 / 2008. Visualizing Off-Screen Locations on Small Mobile Displays. off-screen viz. overview. arrows. halo. f. rel. ated. work. overviews. [Plaisant 95 and many others]. fisheye views. fisheye views. [Carpendale 01].
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Sean Gustafson master of science thesis defense Dec 15 / 2008 Visualizing Off-Screen Locations on Small Mobile Displays
off-screen viz overview arrows halo f
rel ated work
overviews [Plaisant 95 and many others]
fisheye views fisheye views [Carpendale 01]
simple arrows [Tecmo Bowl 87]
scaled and stretched arrows [Burigat 06]
edgeradar [Gustafson 07]
halo [Baudisch 03]
halo [Baudisch 03]
(also not great: corners) side corner
initial approaches clustering ovals Baudisch & Rosenholtz Irani et al. cut lines color separatevisually
th e wedge
wedge base base base base leg leg target
halo wedge
3 degrees of freedom intrusion base length rotation
rotation base length avoiding overlap intrusion
lay out algorithm
leaves 2 degrees intrusion ~ distance base-width ~ distance
u ser study
two interface conditions halo and wedge
task 1: locate same as original halo paper halo wedge
task 2: closest same as original halo paper halo wedge
task 3: avoid same as original halo paper halo wedge
IV: density sparse dense
IV: corner side corner
hypotheses • 1. wedge is more accurate • larger improvement in dense condition • larger improvement in corners • (no hypothesis about task time)
participants were significantly more accurate when using the wedge
error in pixels Side 80 Halo Wedge 60 Error (pixels) 40 20 0 Dense Sparse locate task
error in pixels Corner Side 80 Halo Wedge 60 Error (pixels) 40 20 0 Dense Sparse Dense Sparse locate task
other results no interesting results from the other tasks or from completion time.
other results preferences
hypotheses • 1. wedge is more accurate • larger improvement in dense condition • larger improvement in corners
mod eling pointing
beam beam
beam orbital beam