The Data and Dimensions Interface (DDI) addresses a significant
problem in the visualization of large data sets: Extracting only the
relevant data and providing it to a chosen graphics engine in the
required form without undue effort.
DDI transfers data between files, formats and visualization systems.
It works within the specifications of each supported format to promote
compatibility. DDI provides the following capabilities:
Browsing through the contents of DRS, NetCDF, and HDF files.
Randomly selecting data variables
Rearranging variables into the desired form
Modifying or creating new variable attributes
Saving variables into new files
Feeding variables directly to a visualization system
DDI operates in two modes:
As a module in a data flow environment such as AVS or IRIS Explorer
As a stand-alone application capable of sending data over the
network to AVS, IRIS Explorer, IDL, NCSA Collage, and PV-WAVE
DDI is available for a number of computer systems via anonymous FTP
from sas.nersc.gov in the directory /pub/DDI.
The Introduction to DDI and DDI Reference Manual are www accessible:
http://www.nersc.gov/doc/Services/Applications/Graphics/DDI/DDI.html
DDI was developed as a collaboration between the Program for Climate
Model Diagnosis and Intercomparison (PCMDI), and the National Energy
Research Supercomputer Center (NERSC), both of Lawrence Livermore
National Laboratory (LLNL). DDI was developed by Chris L. Anderson,
Robert S. Drach, and Dean N. Williams.
For more information, contact:
Chris L. Anderson (andersonCL@xxxxxxxxx)
Dean N. Williams (williams@xxxxxxxxxxxxxxx)
