Marco Crocetta (onyx++at++datamat.it)
Thu, 13 Apr 95 11:56:35 METDST
I was reading in an old mail of someone who asked some
information about a database-paging functionality to be incorporated
in a future release of Performer.
I think that DB paging could be related to the problem of a run-time
loading/unloading of parts of a large terrain DB according to the
actual Viewpoint position, say LAT/LON (is it correct ?).
I'm (relatively) new to Performer & Visual Simulation so I like
to know if there is some documentation, articles, example,hints...etc..
relating to Terrain DB organization & management.
An example could be: if I have to simulate a fly through Italy
I don't like to load the entire Italy.flt (if any) DB but just
a "tile" (say Rome.flt). When I begin to leave Rome and approaching
Florence I-d like to load Florence.flt and unload the Rome.flt file
(say removing the node).
I know about spatial organization inside a single DB file, and I wonder
if there is something similar, for a "larger" (at higher level)
spatial organization among various Terrain DB files.
In short, any information about this topic would be of great interest!
Thanks in Advance
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Marco Crocetta
DATAMAT SpA, Rome
e-mail:onyx++at++datamat.it
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This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:51:17 PDT