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Visualizing Off-Screen Locations on Small Mobile Displays

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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Visualizing Off-Screen Locations on Small Mobile Displays

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  1. Sean Gustafson master of science thesis defense Dec 15 / 2008 Visualizing Off-Screen Locations on Small Mobile Displays

  2. off-screen viz overview arrows halo f

  3. rel ated work

  4. overviews [Plaisant 95 and many others]

  5. fisheye views fisheye views [Carpendale 01]

  6. simple arrows [Tecmo Bowl 87]

  7. scaled and stretched arrows [Burigat 06]

  8. edgeradar [Gustafson 07]

  9. halo [Baudisch 03]

  10. halo [Baudisch 03]

  11. the problem: clutter

  12. the problem: clutter

  13. (also not great: corners) side corner

  14. initial approaches clustering ovals Baudisch & Rosenholtz Irani et al. cut lines color separatevisually

  15. th e wedge

  16. wedge base base base base leg leg target

  17. halo wedge

  18. 3 degrees of freedom intrusion base length rotation

  19. rotation base length avoiding overlap intrusion

  20. lay out algorithm

  21. avoidance algorithm

  22. avoidance algorithm

  23. avoidance algorithm

  24. avoidance algorithm

  25. avoidance algorithm

  26. leaves 2 degrees intrusion ~ distance base-width ~ distance

  27. u ser study

  28. two interface conditions halo and wedge

  29. task 1: locate same as original halo paper halo wedge

  30. task 2: closest same as original halo paper halo wedge

  31. task 3: avoid same as original halo paper halo wedge

  32. IV: density sparse dense

  33. IV: corner side corner

  34. 36 participants

  35. hypotheses • 1. wedge is more accurate • larger improvement in dense condition • larger improvement in corners • (no hypothesis about task time)

  36. results

  37. participants were significantly more accurate when using the wedge

  38. error in pixels Side 80 Halo Wedge 60 Error (pixels) 40 20 0 Dense Sparse locate task

  39. error in pixels Corner Side 80 Halo Wedge 60 Error (pixels) 40 20 0 Dense Sparse Dense Sparse locate task

  40. other results no interesting results from the other tasks or from completion time.

  41. other results preferences

  42. hypotheses  • 1. wedge is more accurate • larger improvement in dense condition • larger improvement in corners  

  43. mod eling pointing

  44. beam

  45. beam

  46. beam beam

  47. beam orbital beam

  48. intrusion

  49. intrusion

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