Snap2Diverse: Coordinating Information Visualizations and Virtual Environments

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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
Visperceptual 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
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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!