Techniques for interacting with off screen content
This presentation is the property of its rightful owner.
Sponsored Links
1 / 30

Techniques for Interacting with Off-Screen Content PowerPoint PPT Presentation


  • 51 Views
  • Uploaded on
  • Presentation posted in: General

Techniques for Interacting with Off-Screen Content. Pourang IraniCarl Gutwin University of ManitobaUniversity of Saskatchewan Grant PartridgeMahtab Nezhadasl University of ManitobaUniversity of Manitoba. Introduction. R. M. R. M. R. R. R. M. R. M. R. R. R. M. R. M.

Download Presentation

Techniques for Interacting with Off-Screen Content

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Techniques for Interacting with Off-Screen Content

Pourang IraniCarl Gutwin

University of ManitobaUniversity of Saskatchewan

Grant PartridgeMahtab Nezhadasl

University of ManitobaUniversity of Manitoba


Introduction

R

M

R

M

R

R

R

M

R

M

R


R

R

M

R

M

R

R

R

M

R

M

R

2D navigation: Time Multiplexing

Zooming


R

M

R

M

R

R

R

R

M

R

R

M

M

R

R

R

R

M

R

M

R

M

R

2D navigation: Space Multiplexing

Overview+DetailDragMag


Proxy-based techniques

[Bezerianos and Balakrishnan, 2005]

[Baudisch et al., 2003]


R

R

2D navigation: Proxy

Hop (Halo + Proxies)

M

R


Tasks

  • Baudisch & Rosenholtz [2003]

    • “Position”

    • “Closest”

    • “Avoid”

  • Spatially Absolute

    • Existence, Count, Location

  • Spatially Relative

    • Proximity to reference, Proximity b/w objects, Cluster


Evaluation: Conditions

  • Navigation Techniques

    • Zoom - two-level zoom

    • DragMag

    • Hop

  • Tasks

    • Absolute

    • Relative


Zooming


DragMag


Hop


Results: Completion Time


Possible explanations – strategy

  • Number of operations about 1/5 with hop

  • Zooming requires more “trips” …

    • not so good for absolute tasks

  • … but good for spatial information

    • useful for relative tasks

  • DragMag reduced the number of “trips”

    • allows users to perform relative tasks with ease

    • but added complexity of managing windows


Possible explanations – task-based

  • Relative tasks

    • Need orientation and comparisons b/w views

    • Rely on VSTM

  • Absolute tasks

    • Require information about the objects

    • Do not require spatial/orientation information


WinHop (hop + windows)


WinHop


WinHop


WinHop


WinHop


WinHop


WinHop (video)


MultiscaleZoom


MultiscaleZoom


MultiscaleZoom (video)


Absolute: Location (winhop)


Relative: Cluster (msz)


Results


Limitations of Hybrid Techniques

  • WinHop

    • Many operations, significant learning curve

  • MultiScale Zoom

    • Clutter from proxies


Main Findings

  • Each task requires a different navigation strategy

  • Proxy-based ideal for target-only info tasks

  • Time/Space multiplexing ideal for target-target info

  • Hybrids improve performance in both types of tasks

  • Performance with Multiscale Zoom remained constant


Conclusion

  • Beneficial to investigate techniques on multiple tasks

  • Ideal technique gives target and context information

  • Hybrid techniques are reliably good

    • Consider multiscale zoom for small displays

  • Hybrids performance on other tasks


  • Login