On Jul 9, 12:31 am, fil <fuxi...@gmail.com> wrote: > how can I modify it?
Modify what? If you mean the geocoder, you can't. If you mean your code, you have to put any code that uses the returned data in the callback function. See this page from Mike Williams' tutorial (the tutorial is for v2, but this topic is applicable to your problem) Javascript Concepts - Part 2 Asynchronous I/O http://econym.org.uk/gmap/async.htm If you want specific suggestions on code, you should post a link to your map (as requested in the posting guidelines), not code. -- Larry > > On 8 Lug, 18:06, "geocode...@gmail.com" <geocode...@gmail.com> wrote: > > > > > On Jul 8, 8:59 am, fil <fuxi...@gmail.com> wrote: > > > > I've tryed some solutions and I have a new alert: > > > > I've modified the function named converti_indirizzo > > > > function converti_indirizzo(var1, var2) > > > { > > > if (geocoder) > > > { > > > geocoder.geocode( > > > {'address' : var1+' '+var2}, function (results, status) > > > { > > > if (status == google.maps.GeocoderStatus.OK) > > > { > > > > var posizione = results[0].geometry.location; > > > masticazzi = new google.maps.LatLng((posizione.lat()), > > > posizione.lng())); > > > > map.setCenter(results[0].geometry.location); > > > > alert (masticazzi); > > > return masticazzi;} > > > > else > > > { > > > > } > > > }); > > > } > > > } > > > > now the alert print on the screen the lat and the lng of the place > > > that I've specified. > > > > but in the first function > > > > downloadUrl("php_to_xml.php", function(data) > > > { > > > var xml = parseXml(data); > > > var markers = > > > xml.documentElement.getElementsByTagName("marker"); > > > for (var i = 0; i < markers.length; i++) > > > { > > > var name = markers[i].getAttribute("Sigla"); > > > var address = markers[i].getAttribute("Indirizzo"); > > > var place = markers[i].getAttribute("Citta"); > > > var geocodato = new google.maps.LatLng; > > > geocodato = converti_indirizzo(address,place); > > > alert (geocodato); > > > var marker = new google.maps.Marker( > > > { > > > map: map, > > > position: geocodato > > > > }); > > > > } > > > > }); > > > > the alert print on the screen "Undefined". > > > > why? the function function converti_indirizzo return an > > > "google.maps.LatLng" object, but it seems undefined... > > > > the geocoding works, but i can't understand where i'm wrong. > > > thanks in advance. > > > The geocoding is asynchronous. > > 1. you call the function converti_indirizzo > > 2. it fires off a request to google's servers for the coordinates of > > the given address > > 3. it returns null > > 4. sometime later the result comes back and the callback function > > runs, bringing up the alert message, then returning the GLatLng (but > > it doesn't have a caller, so it goes nowhere). > > > -- Larry > > > > On 8 Lug, 17:35, Rossko <ros...@culzean.clara.co.uk> wrote: > > > > > > i don't have the information of lat and lng into the db, otherwise > > > > > i'll use it! > > > > > This is why I pointed you to the example that shows how to geocode a > > > > set of addresses in your database, and store lat+long in your database > > > > alongside each address. > > > > > You do it once ; this is much better both for your users and for other > > > > people using Google's services, than geocoding the same points every > > > > time someone loads your map webpage. > > > > > If any addresses fail geocoding, or come up with results you don't > > > > want, you can fix them in your database - rather than have them fail > > > > everytime someone looks at your map webpage.- Hide quoted text - > > > > - Show quoted text -- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to google-maps-js-api...@googlegroups.com. To unsubscribe from this group, send email to google-maps-js-api-v3+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
