From: Michael Campbell <michael.campbell@...>
Date: 2005-11-05T06:32:09+09:00
Subject: Re: postal code/zip code distance

Nicholas Van Weerdenburg <vanweerd@gmail.com> writes:

> I need to do a store/restaurant locator search from a persons postal code

My company did something like this, but in Java.  In essense, we
bought a zipcode => lat/long map data set (~ $35 USD, IIRC), and then
the developer that did this dug up from google an algorithm to
calculate distances between two lat/long points.

Pretty simple, near as I can recall.

-- 
I tend to view "truly flexible" by another term: "Make everything
equally hard". -- DHH