> -----Original Message-----
> From: Ronan Heffernan [mailto:ronanh@auctionsolutions.com]
> Sent: Tuesday, 02 March, 2004 16:27
> To: slug@nks.net
> Subject: Re: [SLUG] Linux & GIS
> GRASS is really well suited to using text files to get the data to plot
> icons or labels. I think that there are modules to use Postgres (esp.
> with the PostGIS extensions) as the backend for GRASS. I just write
> scripts that read from Postgres and spit-out the text files that I
> need. BTW GRASS's default interface is a bash shell with certain ENV
> stuff set. If you know how to write BASH scripts that can call psql and
> pipe the output through sed, awk, etc then you can write GRASS scripts
> that auto-pull the data that you want.
>
This sounds like what I am looking for. We have short frames of
data coming from vehicles over a radio system each frame has GPS
Lat/Lon data speed heading and the other usual stuff. Added to that
is one or two bytes of data that comes from sensors and a panic
or hi-jack button, in the end we only want to show the vehicles
that have a problem code, or have been requested to be viewed (
driver going off route?) there will be many operators looking at
different areas of the database, but they will only see the units
they want to see or need to see.
>From what I am seeing it sounds like Grass is where I need to start.
Chuck Hast
-------------------------------------------------------------------------
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."
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