The Google Maps Geocoding API <https://developers.google.com/maps/documentation/geocoding/intro>is used specifically for converting addresses into geographic coordinates. Once you have the geocode points you can use something like the Haversine formula <http://rosettacode.org/wiki/Haversine_formula> to compute distance between them. I'm not an expert on the Maps API but I don't believe there is a way to compute distance between addresses directly without first retrieving the lat and long.
On Monday, January 4, 2016 at 3:50:44 PM UTC-5, Alex Kerr wrote: > > Hi all, > Wondering how best to implement some basic geolocation stuff using Google > Cloud products (and open source if appropriate) > > I need to search user records I'm storing in Datastore, which include the > user's address (in ordinary human readable text format) to see which other > users are within a certain distance from them. Seems I can't do a > geospatial search directly on Datastore records but found something that > suggests a clever little mashup with Google's Search API: > http://ralphbarbagallo.com/2013/05/14/app-engine-geospatial-datastore-search-a-new-way/ > > Questions: > 1.) Is there any better (/more standard) way than what's suggested at that > link? (I know Cloud SQL allows geospatial searches but ideally I want to > use Datastore if possible to store my data in) > 2.) Geospatial matches (at least using above techniques) need latitude and > longitude - are there any Google APIs or open source PHP stuff I could use > to convert addresses into lat/lon? > > I'm running on PHP AppEngine by the way and need a solution I can > implement very quickly and easily if at all possible! > > Many thanks for any info/suggestions! > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/7aea1d41-e9a0-40aa-8b22-8d582f63376d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
