I don't know about the code to send out the SMS, but using either CGI MapServer or MapScript, you could pretty easily do the spatial query to find all of the phone points within a zip code polygon.
David. On Thu, Oct 23, 2008 at 12:23 AM, John Adams <[EMAIL PROTECTED]> wrote: > There's an easy pipeline for making this happen if you have details > about each individual that you're sending to (say, a zipcode to do the > lat/long conversion.) > > It's zipcode to lat/long, origin point to lat/long, and then some > simple geometry to figure out who's local to your origin and in your > polygon. > > It's probably about 30 lines of Perl ; I know of few commercial or > open source software packages that do this, but you can cobble it > together from existing code. > > If you're relying on individual phone coordinates, that's > significantly harder because of privacy concerns and the availability > of the phone's GPS location. > > -john > > On Oct 22, 2008, at 8:08 PM, Cameron Shorter wrote: > >> Hi, >> Does anyone know of software or systems which can send SMS messages to >> all phones in an operator specified polygon area? >> >> -- >> Cameron Shorter >> Geospatial Systems Architect >> Tel: +61 (0)2 8570 5050 >> Mob: +61 (0)419 142 254 >> >> Think Globally, Fix Locally >> Geospatial Solutions enhanced with Open Standards and Open Source >> http://www.lisasoft.com >> >> _______________________________________________ >> Geowanking mailing list >> [email protected] >> http://lists.burri.to/mailman/listinfo/geowanking > > _______________________________________________ > Geowanking mailing list > [email protected] > http://lists.burri.to/mailman/listinfo/geowanking > _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
