Re: [gpsd-users] location lookup

[Gary E. Miller]

Yo Yan!

Getting off topic for gpsd.  Email me directly.

On Tue, 20 Mar 2012 13:01:34 -0700 (PDT)
"Yan Seiner" <address@hidden> wrote:

> 
> On Tue, March 20, 2012 12:46 pm, Gary E. Miller wrote:
> > Yo Yan!
> 
> >
> > Just download the flat file from the link I gave you.
> >
> > http://geonames.usgs.gov/domestic/download_data.htm
> >
> > It has lat/lons and place names.  Just search the file for the
> > nearest lat/lon and take the associated place name.  Place names
> > are tagged by type (city, mountain, etc.) so you can limit your
> > search to just cities.
> >
> 
> Any suggestions on how to do the search?  "nearest" is kind of hard to
> figure out without doing a radius calc....  I'm not sure how to set
> up the database and index it so as to minimize the computational
> effort in finding the nearest point.
> 
> (Storage is not a problem - I have a hard drive attached. cpu and ram
> are limited.  I have a 260 MHz CPU and 32 MB of ram.)
> 
> >
> > I would be tempted to blow the flat file into an sqlite DB for fast
> > searches.
> 
> Once I figure out what I'm doing, that may be a possibility.
> 
> 
> 
> 




RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
        address@hidden  Tel:+1(541)382-8588

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