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Snap2Diverse: Coordinating Information Visualizations and Virtual Environments

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... (2003) 'Information-Rich Virtual Environments: Theory, Tools, and Research Agenda' ... Thanks and Happy Hacking! Nicholas F. Polys. npolys_at_vt.edu ... – PowerPoint PPT presentation

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Title: Snap2Diverse: Coordinating Information Visualizations and Virtual Environments


1
Snap2Diverse Coordinating Information
Visualizations and Virtual Environments
SPIE Visualization and Data Analysis 2004
  • Nicholas F. Polys, Chris North,
  • Doug A. Bowman, Andrew Ray,
  • Maxim Moldenhauer, Chetan Dandekar

Department of Computer Science Center for Human
Computer Interaction Virginia Polytechnic
Institute and State University
2
Problem Integrated Information Spaces
  • Researchers, designers, students, and analysts
    need to explore, search, recognize, and compare
    patterns across a wide variety of data types and
    applications.
  • Some representations are better suited to
    different data types and questions
  • Abstract information -gt Information
    Visualization
  • Perceptual or spatial information -gt Virtual
    Environments

3
User Problem
  • Perceptual, environmental phenomena alone do not
    guarantee accurate mental models
  • Interfaces for information and controls are
    consistently under-represented and poorly
    integrated in VEs

4
Developer Problem
  • Increasingly, objects rendered in VEs have
    metadata and annotations associated with them.
    These may change over time.
  • Lacking design guidelines and information
    architectures for efficient management of
    Integrated Information Spaces

5
Approach Information-Rich Virtual Environments
(IRVEs)
  • IRVEs are at the union of VE and Info
    Vis perceptual abstract information is
    simultaneously accessible and linked
  • Define the issues and the task space for this
    class of applications
  • Define the design space to solve and support them
  • Apply usability engineering methods to identify
    tradeoffs and enumerate design guidelines

6
Some Research Questions
  • Where, how, and when should the abstract
    information be displayed in the VE?
  • In what form should the information be displayed?
  • How can interrelationships between the spatial
    and abstract information be represented?

Bowman, Doug, North, Chris, Chen, J., Polys, N.,
Pyla, P., Yilmaz, U., (2003) Information-Rich
Virtual Environments Theory, Tools, and Research
Agenda. Proc. Virtual Reality Software and
Technology (VRST)
7
IRVEs and Multiple Coordinated Views
  • Users can index to and from perceptual and
    abstract information through brushing and
    linking. Snap2Diverse uses RMI and
    RemoteSharedMemory to link VE and InfoVis
    toolkits
  • DIVERSE is an multi-platform, open-source VR
    toolkit diverse.sourceforge.net
  • Snap-Together Visualization is a free,
    componentized toolkit for information
    visualization infovis.cs.vt.edu

8
Snap2Diverse IRVE
  • Multiple-Views approach
  • Abstract info in separate Infovis apps
  • hanging picture, HUD
  • Brushing and linking
  • Layout location display-fixed location
    separate, opaque application does not reside
    within the scenegraph.
  • Layout Association Hanging Picture is visually
    implicit not localized in the environment
    brushing and linking.

9
Snap
10
Video
11
Event Support
  • Diverse as a Snap-able component
  • Unique data record Ids for 2 way communication
  • Event communication (e.g. select, load)

12
(No Transcript)
13
Application Cheminformatics
14
Usability Evaluation Summary
  • Snap2Diverse as tested is
  • high-threshold for learnability
  • high-ceiling for functionality
  • Users were able to brush link to solve tasks
  • In most cases, users chose suitable
    visualizations to recover the information
    required for the finding and comparing tasks
  • Given a choice, users tended to recover
    information from the VE rather than the InfoVis
    window
  • Xwand is a moded interface and switching between
    2D and 3D navigation and selection was not
    intuitive.

15
Lessons Learned
  • Simple events provide glue to support complex
    functionality
  • Benefits of exposing VE scenegraphs to external
    events enabling technology must be extended
  • Benefits of composable and integrated information
    spaces
  • Designers must consider tasks and the knowledge
    required for completion (ie Sutcliffe and
    Faraday, Shneiderman)

16
Current Work PathSim
  • http//www.vbi.vt.edu/pathsim
  • Paper to be presented at Web3D 2004
  • Polys, N., Bowman, D., North, C., Laubenbacher,
    R., Duca, K., (2004). PathSim Visualizer An
    Information-Rich Virtual Environment for Systems
    Biology Proceedings of Web3D 2004, ACM SIGGRAPH.

17
Future Work
  • IRVE Testbed construction
  • Controlled experiments and usability evaluations
    to identify the significant design dimensions and
    techniques for integrated information spaces.
  • Identify tradeoffs, guidelines, and design
    patterns for this class of problems.
  • Propose future X3D standard components
  • Annotation (labels, metadata)
  • Compositing (HUD, ApplicationTexture)

18
Thanks and Happy Hacking!
  • Nicholas F. Polys
  • npolys_at_vt.edu

Department of Computer Science Center for Human
Computer Interaction Virginia Polytechnic
Institute and State University
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