Real-time is somewhat relative, but I have done some work tying DX-based
visualizations to weather simulations while they are executing.  This is in
addition to post-processing tools.  Given the complexity of the
initialization and boundary conditions, I have only done tracking or
monitoring not steering.  However, this has been very useful for both
quality control and early feature detection.

The weather forecasting work is discussed at
http://www.research.ibm.com/weather with information about the
visualization portion (papers and examples) available at
http://www.research.ibm.com/weather/vis/w_vis.htm

--------------------------
Lloyd A. Treinish
Visual Analysis
IBM Thomas J. Watson Research Center
P. O. Box 704
Yorktown Heights, NY 10598
914-784-5038 (voice)
914-784-7667 (facsimile)
[EMAIL PROTECTED]
http://www.research.ibm.com/people/l/lloydt/


Ruppert <[EMAIL PROTECTED]>@opendx.watson.ibm.com on 12/07/99 07:36:03 AM

Please respond to [email protected]

Sent by:  [EMAIL PROTECTED]


To:   [email protected]
cc:   [EMAIL PROTECTED]
Subject:  [opendx-users] realtime data display?




Hi everyone,

I have a large simulation program which produces output data
(irregular positions and velocity data) at a rate of a few
points per second. I wonder if it is possible to have dx display
these data and continuously update this display (i.e. have a "online
3D-display" of my data as they are created).

I have browsed through most of the documentation but found no
"obvious" way to do this. Most explanations and examples deal with
the visualization of a fixed set of data from a file. I could,
of course, create a file from my data, but this would limit my
possibilities to interact with the simulation (i.e. parameters
could only be modified for the next simulation run).

The simulation side would be quite obvious: I could employ the
DXLink facilities to start dx from the simulation and feed positions
and data (and connections?) via DXLSetValue to one or more DXLInput
modules on the dx side. What I am unsure about is the required
structure on the dx side. Is any of the predefined modules able
to "add" or "append" these data to the data accumulated so far?
Or would I have to code a module myself to acomplish this?

I am quite new to dx, and perhaps I am missing something obvious.
Any help or hint would be much appreciated.

Thanks in advance.

Dieter Ruppert
RTS GmbH
Schwieberdingen/Germany
[EMAIL PROTECTED]



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