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Calling Google Reverse Geocoding Address Lookup

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posted 11 years ago

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Hi All,
I'm trying to integrate google reverse geocoding address into my jsf application.
I would like to be able to enter a postcode and hit a 'Find Address' button to bring me back
all the addresses within that location. I have attempted the script below just to get something working
in html then build a jsf2 page up. The results that I keep getting back are for a specific building rather
than a list of houses within the same street. I think this is because I'm using the lat/long.

<!DOCTYPE html>
<html>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?sensor=false"></script>
<body>
<div id="latlng" value="53.561922,-2.120010"></div>
<div id="test1"></div>
<div id="test2"></div>
<div id="test3"></div>
<div id="test4"></div>

geocoder = new google.maps.Geocoder();
}

function codeLatLng() {

var input = document.getElementById("latlng").getAttribute('value');
     var latlngStr = input.split(",", 2);
    var lat = parseFloat(latlngStr[0]);
    var lng = parseFloat(latlngStr[1]);
    var latlng = new google.maps.LatLng(lat, lng);

geocoder.geocode({
        'latLng': latlng
    }, function(results, status) {

if (status == google.maps.GeocoderStatus.OK) 
        {

var result = results[0];
           //look for locality tag and administrative_area_level_1
          var city = "";
          var state = "";
   
          for(var i=0, len=result.address_components.length; i<len; i++) 
          {
                  
                  var ac = result.address_components[i];
                  alert('ac.long_name='+ac.long_name)
          }
		
       
        }

});
}
</script>
</body>
</html>

Mat'>

Tim Holloway

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Posts: 29139

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posted 11 years ago

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I wouldn't be surprised. It's not a trivial task to find all the addresses along a section of street, especially if your street bends like a hockey puck (mine does) and changes names slightly (also). Or your latitude/longitude selects a point near where multiple streets intersect.

Probably the first thing I'd do is look for an option to expand the lookup from a point to a small area (square, or whatever) and gather all the addresses and see if you can go from there.

The problem with getting rid of the "undesirables" is that sooner or later someone will decide that YOU are an undesirable.

Did you see how Paul cut 87% off of his electric heat bill with 82 watts of micro heaters?