[Proj] Region Finder

[` `]

Thank you for your post.  I will look into geos.

-Daniel


> Date: Thu, 11 Mar 2010 18:51:58 -0500
> From: warmerdam at pobox.com
> To: proj at lists.maptools.org
> Subject: Re: [Proj] Region Finder
> 
> ` ` wrote:
> > I have a the latitude/longitudes for a school boundary and I want to 
> > know if an address is in that boundary.  Is there a way to find out if a 
> > coordinate is within a latitude/longitude boundary?  Or even better 
> > would be to use an address and find out what boundary it is in.
> > 
> 
> Daniel,
> 
> There are two parts to your question, neither of which have to do with
> PROJ.4:
> 
> 1) The ability to determine the lat/long location associated with an
> address (ie. a postal address).  This is called geocoding.   The following
> posts by Martin Davis should provide a bit of background on geocoders.
> 
> http://lin-ear-th-inking.blogspot.com/2010/03/open-source-geocoders.html
> http://lin-ear-th-inking.blogspot.com/2010/03/more-open-source-geocoders.html
> 
> 2) The ability to determine if a point is within a polygon or conversely
> which polygon within a set the point is in.  This is a geometry operation.
> One of the best known geometry libraries is GEOS (a C++ port of JTS which
> oddly is also Martin Davis' project).
> 
>    http://geos.osgeo.org/
> 
> Good luck,
> -- 
> ---------------------------------------+--------------------------------------
> I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial Programmer for Rent
> 
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