Transcript Visualization: A New Dimension to Research

Visualization and GIS
at NCSA
http://www.ncsa.uiuc.edu/DMV
http://www.ncsa.uiuc.edu/Vis
(Polly Baker, Group Leader,[email protected])
Randy Heiland
[email protected]
Oct. 12, 2000
National Computational Science Alliance
Visualization & Research
Researchers use visualization…
• To aid in debugging new algorithms
• To explore and understand large data sets
• To help in guiding remote instruments
• To share results with colleagues
• To report, publicize, and educate
Observe
Model
Simulate
Analyze
Report
National Computational Science Alliance
Virtual Reality
• CAVE
• ImmersaDesk
National Computational Science Alliance
Immersion & Multimodal Interfaces
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6 DOF input
head tracking
stereo viewing
sound
speech input
haptics
National Computational Science Alliance
Bare-Hand Gesture
• Single camera
mounted atop
ImmersaDesk
• Augmented
with speech,
use hand to
navigate, to
select
With Tom Huang, UIUC ECE Department
National Computational Science Alliance
BattleView
Visualization and human factors research to support information gain
and situational awareness in large, complex, dynamic environments.
Supported by Army Research Lab FedLab, Advanced Displays
National Computational Science Alliance
Coprocessing
• Vis/steer running (parallel)
application
• Survey of existing packages
• Apply to 3D, time-varying
eutrophication model of
Chesapeake Bay; (domain
decomp, parallel code/MPI)
• www.ncsa.uiuc.edu/Vis/Publications
With USArmy Corps of Engineers, ERDC, Vicksburg MS
National Computational Science Alliance
Data Shading
(woodall.ncsa.uiuc.edu/dbock/projects/VisShade)
National Computational Science Alliance
Global Virtual Prototyping
With Caterpillar Inc. Real-time sharing of
VR, audio, video between Urbana, Peoria,
Houston, and Germany
Courtesy Caterpillar Inc.
National Computational Science Alliance
RiverWeb/River Pilot Simulator
• RiverWeb
•
www.ncsa.uiuc.edu/Cyberia/Riverweb
• Science Museum of
Minnesota (12/99)
• St. Louis Science Center
(coming)
National Computational Science Alliance
Virtual Director
Shared travel and
playback of path
in a 3D world
VirDir with Vis5D to
explore 3D scientific data
Courtesy Cox, Patterson, Levy, Wheless, Lascara
National Computational Science Alliance
www.usgs.gov + simulation
National Computational Science Alliance
+ terraserver.microsoft.com
National Computational Science Alliance
National Computational Science Alliance
VisBench: A Visualization Workbench
• A multi-platform collection of tools for
visualization capabilities
• Provides access (possibly from underpowered resources) to Vis functionality
running on high-powered resources.
Important for remote users and/or for big
data.
• Provides visualization functionality for
the Grid
National Computational Science Alliance
VisBench Components
Java
Client
Geometry
Client
CAVE
Client
Problem-specific
Workbench
Object Request Broker (CORBA)
File
Server
O2K
VTK
Server
Terrain
Server
RenderMan
Server
MATLAB
Server
National Computational Science Alliance
(Visualization Toolkit) VTK Server
• open source, 3D computer
graphics, image processing, and
visualization.
• hundreds of algorithms
• object oriented (C++)
• other language bindings for RPD
(Tcl/Tk, Python, Java)
• Unix/Linux, Windows
• threads, MPI support
• active user community
• www.kitware.com/vtk.html
National Computational Science Alliance
MATLAB
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Commercial pkg; well-respected; >20 yrs old
LINPACK/EISPACK=>LAPACK
concise scripting language interface
large archives of existing scripts
www.mathworks.com/products/matlab
• VisBench: offer higher-level analysis tools &
interfaces that use MATLAB
National Computational Science Alliance
VisBench Java Client
• Build vis pipeline
• Control vis parameters
• Handle multi-files
(time-series)
• Apply analysis
techniques
• Export images, VRML
• Save session as XML
National Computational Science Alliance
CFD Feature Extraction
National Computational Science Alliance
Future: The Grid
Provides access to resources anytime,
anyplace
 Connects dispersed research teams, fostering
communication and collaboration
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Couples machines used for simulation
+ machines used for visual analysis/mining
+ databases
National Computational Science Alliance