Mensaje
De
13/04/2010 02:54:10
a
13/04/2010 02:44:42
Environment versions
Environment:
VB 9.0
OS:
Windows XP SP2
Network:
Windows 2003 Server
Database:
MS SQL Server
Application:
Web
Miscellaneous
ID de la conversación:
01459851
ID del mensaje:
01459864
Views:
51
>There's also this http://geocoder.ibegin.com/downloads.php
>
>US zip codes with longitudes and latitudes
Thank you, this is useful.
I have a class that calculates the distance based on two sets of coordinates. However, I am still curious to know how they do it to calculate so fast that x number of records correspond to a 50 km radius, from a specific location, taking from a 10,000 records table.
>
>US zip codes with longitudes and latitudes
Thank you, this is useful.
I have a class that calculates the distance based on two sets of coordinates. However, I am still curious to know how they do it to calculate so fast that x number of records correspond to a 50 km radius, from a specific location, taking from a 10,000 records table.
Michel Fournier
Level Extreme Inc.
Designer, architect, owner of the Level Extreme Platform
Subscribe to the site at https://www.levelextreme.com/Home/DataEntry?Activator=55&NoStore=303
Subscription benefits https://www.levelextreme.com/Home/ViewPage?Activator=7&ID=52
Level Extreme Inc.
Designer, architect, owner of the Level Extreme Platform
Subscribe to the site at https://www.levelextreme.com/Home/DataEntry?Activator=55&NoStore=303
Subscription benefits https://www.levelextreme.com/Home/ViewPage?Activator=7&ID=52