sqrt((lon1-long2)^2+(lat1-lat2)^2) only works correctly if you're at the equator. Degrees of longitude get narrower as you move closer to the poles.
A better distance algorithm is described in the "Store Locator" article of the official Documentation: http://code.google.com/apis/maps/articles/phpsqlsearch.html#findnearsql It's worth reading the whole of that article, because much of it will be relevant for what you're doing. -- Mike Williams http://econym.org.uk/gmap -- You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-api?hl=en.
