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Old July 13th 07, 02:23 PM posted to rec.aviation.owning
Dan Luke[_2_]
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Posts: 713
Default Garmin unveiling?


"Roy Smith" wrote:

In Garmin's defense, the airways take up a lot of memory


Feh. The FAA distributes the airway database in an extremely verbose text
format which is about 10 meg in raw format, but compresses down (with gzip)
to a little under a meg. The only data in the file which doesn't already
need to be stored anyway (i.e. fix coordinates) is a list of which fixes
make up each airway. There's 42k records in the file. If you used a
32-bit pointer for each fix, plus some per-airway information (I count 2240
airways), the whole thing fits into under 200k. This is nothing.


G-D usenet. There's always some smartass who actually knows what he's
talking about to come along and spoil the fun!

--
Dan

"Gut feeling"

Intestinologists concur that the human gut does not contain any
rational thoughts.

What the human gut *is* full of is moderately well
known.