From: Reid Thompson <Reid.Thompson@...>
Date: 2005-11-23T11:54:32+09:00
Subject: Re: postal code/zip code distance

Michael Campbell wrote:

>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.
>
>  
>
load the data in postgresql and use it to calculate the distances