Distance calculation software wanted

DoctorBeaver

I'm adding a membership system to my site and I'd like to add a feature whereby a member can input a distance and get a list of all members within that area. I want to limit it to the UK so I imagine it would have to work by postcode.

Does anyone know if there's any software or script I can download to handle that for me?

silverdown

Well

DoctorBeaver

Silverdown - thanks, but I don't think that would help me. What I want to do is, say, if someone enters their location as London and accessible distance as 30 miles, I want to show a list of all members within a 30 mile radius of London.

Mannix

I don't know much about it, but Google map allows for some 'hacking'. Personally, I think this may be exactly what you're looking for.

ex. http://www.econym.demon.co.uk/googlemaps/examples/map15b.htm

You can do better though I believe...

http://www.econym.demon.co.uk/googlemaps/

See also:
http://www.bostonist.com/archives/2006/07/24/new_wave_wikimapia.php
http://wikimapiablog.blogspot.com/2006/08/how-to-add-google-map-to-any-web-page.html

http://www.google.com/apis/maps/documentation/

...Creating icons example -- http://www.google.com/apis/maps/documentation/icon.html

DoctorBeaver

Mannix - that would be perfect if I knew the latitude & longitude of where the members live.

So, follow-up question:-

Is there any software that will return the latitude & longitude if I send it a uniquely identifiable placename (i.e. Solihull, West Midlands, UK) ?

I know there are sites that will tell you the latitude & longitude but there's no way to get them as variables.