On Sep 13, 1:05 am, Johan Arensman <johanm...@gmail.com> wrote:
> Hello all,
>
> I have been experimenting with the code but I'm still unable to get an
> accurate result. Each address has an unique postal+house number so why can't
> I search for postal + house number with google maps?

I don't think your use case it the main one for the geocoder.

http://code.google.com/apis/maps/documentation/javascript/services.html#Geocoding
Says this:
Geocoding
Geocoding is the process of converting addresses (like "1600
Amphitheatre Parkway, Mountain View, CA") into geographic coordinates
(like latitude 37.423021 and longitude -122.083739), which you can use
to place markers or position the map.

I'm not sure it can recognize a postcode + house number as an address.

  -- Larry


>
> Greetings,
>  Johan
>
>
>
> On Fri, Sep 10, 2010 at 2:34 PM, Johan Arensman <johanm...@gmail.com> wrote:
> > Hello everyone,
>
> > We have a system that allows you to add addresses by only using a postal
> > code and a house number in the Netherlands.
>
> > I got it working but it's not pretty and far from accurate because I'm
> > using 3 geocode requests of which the first is impossible to do directly
> > with the number.
>
> > 1: geolocate postal + country such as "3267LP, The Netherlands"
> > 2: reverse geolocate the coords from step 1 for the extra information such
> > as street etc.
> > 3: geolocate the extended address.
>
> > But if I use the postal code in the above example, I end up on the
> > 'Gebrokendijk', I should be on 'Oude Nieuwlandsedijk'. This probably happens
> > because the first geolocation is done without a house number and the
> > 'center' or 'start' of this postal zone is closer to that street instead of
> > the correct one? (no expert here). Is there any way to create a working
> > geolocation with all the information i have (postal+housenumber+country) ?
>
> > Can you please tell me if there's another way to achieve this? I can't
> > change the input, i only got postal + house number.
>
> > Here is my code, I've removed any code not related to the geolocation and
> > added comments. I've also saved this snippet to jsbin:
> >http://jsbin.com/ugota3/editfor some highlighting
>
> > try {
> > // test input:
> > var country = 'The Netherlands';
> > var postal = '3267LP';
> > var number = '7';
>
> > // 1: geocode postal and country:
> > var result = gc.geocode({address: postal+', '+country}, function(results,
> > status) {
> >     if(status == google.maps.GeocoderStatus.OK) {
> >         // 2: reverse geocode the coordinates:
> >         gc.geocode({latLng: results[0].geometry.location},
> > function(results, status) {
> >             if(results[0]) {
> >                 // get the correctly formatted address:
> >                 var address = results[0].formatted_address;
> >                 if(results[0].types[0] == 'street_address') {
> >                     address = results[0].address_components[1].long_name+'
> > '+number+', '+postal+' '
> >                        +results[0].address_components[2].long_name+'
> > '+results[0].address_components[5].long_name;
> >                 } else if(results[0].types[0] == 'route') {
> >                     address = results[0].address_components[0].long_name+'
> > '+number+', '+postal+' '
> >                        +results[0].address_components[1].long_name+'
> > '+results[0].address_components[4].long_name;
> >                 }
> >                 // 3: geocode the exact address:
> >                 gc.geocode({address: address}, function(results, status) {
> >                     if(results[0]) {
> >                         // create marker:
> >                         new google.maps.Marker({
> >                             map: map.map,
> >                             position: results[0].geometry.location,
> >                             icon: tinyIcon,
> >                             title: address
> >                         });
> >                         // show address
> >                         addressElement.update(address);
> >                     } else {
> >                         //alert("Geocode 3 was not successful for the
> > following reason: " + status);
> >                         return false;
> >                     }
> >                 });
> >             } else {
> >                 //alert("Geocode 2 was not successful for the following
> > reason: " + status);
> >                 return false;
> >             }
> >         });
> >         map.setCenter(results[0].geometry.location);
> >         marker.setPosition(results[0].geometry.location);
> >     } else {
> >         //alert("Geocode was not successful for the following reason: " +
> > status);
> >         return false;
> >     }
> > });
> > } catch(e) {
> >     console.error(e);
> > }
> > // end
>
> > I really hope you can help me make this script more accurate.
> > Have i missed something? Am I thinking wrong? Or are these the limits of
> > the geocoder?
>
> > Greetings,
> >  Johan Arensman- Hide quoted text -
>
> - Show quoted text -

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