Search Script Zip Code Distance Option

Fewski · 07-17-2007, 12:51 PM

I have a search script that right now when you enter a zip code, it only finds ads that are in the zip code. I want it to have a few options (50 miles, 100 miles, 200 miles, and 500 miles).

Please let me know your quote.

Like I said, I have the script to do the search - I just need someone to add a zip code distance option.

Thanks

Peter · 07-19-2007, 03:33 AM

Just a note. Before you can do something like that you will need to buy a database such as the 1 http://www.teamredline.com/ offer.

This will give you the longitude and latitude of the zip codes which then enable you to work out the distance.

jsp · 08-01-2007, 04:56 PM

Longitude and Latitude are not implemented in google maps

Peter · 08-01-2007, 05:19 PM

Originally Posted by additionalfriends

Longitude and Latitude are not implemented in google maps

Who said anything about google maps. The op wanted to be able to work out the distance between 2 zip codes. Google maps was never mentioned.

jsp · 08-01-2007, 05:21 PM

easily the best, most efficient, and cheapest solution to your problem, but if not your interest..understood

Peter · 08-01-2007, 05:30 PM

If i remember correctly to calculate the distance between 2 points using data retrieved from google maps is quite complex. I am sure I have a book around somewhere that explains how to do it and it entails calculating the curvature of the earth etc.

jsp · 08-01-2007, 06:38 PM

Not actually too involved, as most of the most complex operations are integrated...Uses the Haversine formula, implemented in JavaScript is:

var R = 6371; // km
var dLat = (lat2-lat1).toRad();
var dLon = (lon2-lon1).toRad();
var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(lat1.toRad()) * Math.cos(lat2.toRad()) *
Math.sin(dLon/2) * Math.sin(dLon/2);
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
var d = R * c;

where var d is your distance-
And no need to buy a zip code database, I have one you can have for free, if interested.
????: NamePros.com http://www.namepros.com/web-development-wanted/351184-search-script-zip-code-distance-option.html

____________________
BUT, as far as what youre trying to do it sounds like some additonal iterations of your search script, in combination with a distance modifier would do the job, i have a good idea of what would be required to do this, if interested let me know

07-17-2007, 12:51 PM	THREAD STARTER #1 (permalink)
Fewski Senior Member Join Date: Dec 2004 Location: Florida Posts: 2,627	Search Script Zip Code Distance Option I have a search script that right now when you enter a zip code, it only finds ads that are in the zip code. I want it to have a few options (50 miles, 100 miles, 200 miles, and 500 miles). Please let me know your quote. Like I said, I have the script to do the search - I just need someone to add a zip code distance option. Thanks

07-19-2007, 03:33 AM	#2 (permalink)
Peter NamePros Expert Join Date: Nov 2003 Location: Scotland Posts: 5,074	Just a note. Before you can do something like that you will need to buy a database such as the 1 http://www.teamredline.com/ offer. This will give you the longitude and latitude of the zip codes which then enable you to work out the distance. __________________ Manage your portfolio using my new Domain Portfolio Management script. Securing Your Domain Name From Theft

08-01-2007, 05:30 PM	#6 (permalink)
Peter NamePros Expert Join Date: Nov 2003 Location: Scotland Posts: 5,074	If i remember correctly to calculate the distance between 2 points using data retrieved from google maps is quite complex. I am sure I have a book around somewhere that explains how to do it and it entails calculating the curvature of the earth etc. __________________ Manage your portfolio using my new Domain Portfolio Management script. Securing Your Domain Name From Theft

08-01-2007, 06:38 PM	#7 (permalink)
jsp Account Suspended Join Date: Sep 2006 Location: Washington, DC Posts: 243	Not actually too involved, as most of the most complex operations are integrated...Uses the Haversine formula, implemented in JavaScript is: var R = 6371; // km var dLat = (lat2-lat1).toRad(); var dLon = (lon2-lon1).toRad(); var a = Math.sin(dLat/2) * Math.sin(dLat/2) + Math.cos(lat1.toRad()) * Math.cos(lat2.toRad()) * Math.sin(dLon/2) * Math.sin(dLon/2); var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a)); var d = R * c; where var d is your distance- And no need to buy a zip code database, I have one you can have for free, if interested. ????: NamePros.com http://www.namepros.com/web-development-wanted/351184-search-script-zip-code-distance-option.html ____________________ BUT, as far as what youre trying to do it sounds like some additonal iterations of your search script, in combination with a distance modifier would do the job, i have a good idea of what would be required to do this, if interested let me know Last edited by additionalfriends; 08-01-2007 at 06:45 PM.

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08-01-2007, 04:56 PM	#3 (permalink)
jsp Account Suspended Join Date: Sep 2006 Location: Washington, DC Posts: 243	Longitude and Latitude are not implemented in google maps

08-01-2007, 05:21 PM	#5 (permalink)
jsp Account Suspended Join Date: Sep 2006 Location: Washington, DC Posts: 243	easily the best, most efficient, and cheapest solution to your problem, but if not your interest..understood

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