Make geocoding map zoom on scroll -


i looking @ 2 different geocode examples found , looking best of both features. have not had experience geocoding , find google docs hard follow

this 1 want except scroll in when user uses mouse wheel. http://jsfiddle.net/ep7rr/

i 1 if marker move user drags map in first one.http://jsfiddle.net/ajetc/

i know there different ways such new gmap2 , new google.maps.geocoder

the first 1 works code

<script> function load() {   if (gbrowseriscompatible()){     var map = new gmap2(document.getelementbyid("map"));     map.addcontrol(new gsmallmapcontrol());     map.addcontrol(new gmaptypecontrol());     var center = new glatlng(54.18173, -6.35284);     map.setcenter(center, 15);     geocoder = new gclientgeocoder();     var marker = new gmarker(center, {draggable: true});       map.addoverlay(marker);     document.getelementbyid("lat").innerhtml = center.lat().tofixed(5);     document.getelementbyid("lng").innerhtml = center.lng().tofixed(5);      gevent.addlistener(marker, "dragend", function(){       var point = marker.getpoint();       map.panto(point);       document.getelementbyid("lat").innerhtml = point.lat().tofixed(5);       document.getelementbyid("lng").innerhtml = point.lng().tofixed(5);     }); /*end gevent.addlistener(marker, "dragend", function(){*/      gevent.addlistener(map, "moveend", function() {       map.clearoverlays();       var center = map.getcenter();       var marker = new gmarker(center, {draggable: true});       map.addoverlay(marker);       document.getelementbyid("lat").innerhtml = center.lat().tofixed(5);       document.getelementbyid("lng").innerhtml = center.lng().tofixed(5);        gevent.addlistener(marker, "dragend", function() {         var point =marker.getpoint();         map.panto(point);         document.getelementbyid("lat").innerhtml = point.lat().tofixed(5);         document.getelementbyid("lng").innerhtml = point.lng().tofixed(5);       }); /*end gevent.addlistener(marker, "dragend", function() {*/     }); /*end gevent.addlistener(map, "moveend", function() {*/   } /*end if (gbrowseriscompatible()){*/ } /*end function load*/

and second uses this

<script type="text/javascript"> function showaddress() {   var map = new gmap2(document.getelementbyid("map"));   var address = document.getelementbyid('fulladdress').value;     return false; } /*end function showaddress*/   var geocoder = new google.maps.geocoder();  function geocodeposition(pos) {   geocoder.geocode({     latlng: pos   }, function(responses) {     if (responses && responses.length > 0) {       updatemarkeraddress(responses[0].formatted_address);     } else {       updatemarkeraddress('cannot determine address @ location.');     }   }); }  function updatemarkerstatus(str) {   document.getelementbyid('markerstatus').innerhtml = str; }  function updatemarkerposition(latlng) {   document.getelementbyid('info').innerhtml = [     latlng.lat(),     latlng.lng()   ].join(', '); }  function updatemarkeraddress(str) {   document.getelementbyid('address').innerhtml = str; }  function initialize() {   var latlng = new google.maps.latlng(54.18173, -6.35284);   var map = new google.maps.map(document.getelementbyid('mapcanvas'), {     zoom: 8,     center: latlng,     maptypeid: google.maps.maptypeid.roadmap   });   var marker = new google.maps.marker({     position: latlng,     title: 'point a',     map: map,     draggable: true   });    // update current position info.   updatemarkerposition(latlng);   geocodeposition(latlng);    // add dragging event listeners.   google.maps.event.addlistener(marker, 'dragstart', function() {     updatemarkeraddress('dragging...');   });    google.maps.event.addlistener(marker, 'drag', function() {     updatemarkerstatus('dragging...');     updatemarkerposition(marker.getposition());   });    google.maps.event.addlistener(marker, 'dragend', function() {     updatemarkerstatus('drag ended');     geocodeposition(marker.getposition());   }); }  // onload handler fire off app. google.maps.event.adddomlistener(window, 'load', initialize); </script>

catch event when map dragged. update position of marker getting map center geocode position of marker

google.maps.event.addlistener(map, 'dragend', function() {   updatemarkerstatus('drag ended');   marker.setposition(map.getcenter());   geocodeposition(marker.getposition()); });

like : http://jsfiddle.net/zyv9n/


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