[aprssig] filtering using shape files

'Scott Miller' scott at opentrac.org
Sat Mar 10 16:51:02 EST 2007

I've done it, but only for database access and not live stream filtering.
I've got an Oracle Spatial database on my development machine, and I'm able
to import shape files and run queries against them.  For example, I can have
it select all stations in Santa Barbara county, all stations in Oklahoma
within 1 mile of Interstate 40, and so on.

I think you'd need to find a different solution for stream processing,


> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org 
> [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of John Habbinga
> Sent: Saturday, March 10, 2007 11:50 AM
> To: TAPR APRS Mailing List
> Subject: [aprssig] filtering using shape files
> Has anyone considered developing a filter that uses shape 
> files?  It would 
> be really nice to select specific counties, regardless of 
> their shape, and 
> only receive data from those areas.  You could build a filter 
> for all of 
> Texas that doesn't include Oklahoma, Arkansas, Louisiana and 
> New Mexico.
> I would imagine that it would require that the operator of 
> javAPRSSrvr, or 
> other server, to download the shape files to their computer.  
> A filter would 
> then be defined by the user. 
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