Google Maps V3 Geocode + Zoom - javascript

I was using geocode service of Google Maps Version 2 the Javascript API.
https://developers.google.com/maps/documentation/javascript/v2/reference
However google decided not to support his anymore.
Note: The Google Maps JavaScript API Version 2 has been officially
deprecated as of May 19, 2010. The V2 API will continue to work until
May 19, 2013. We encourage you to migrate your code to version 3 of
the Maps JavaScript API.
So how can I geocode in google maps version 3 javascript api with zoom?

To zoom the map to best show the results of the geocoding operation, you can use the google.maps.Map fitBounds method with the viewport property of the result:
function codeAddress() {
var address = document.getElementById("address").value;
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
if (results[0].geometry.viewport)
map.fitBounds(results[0].geometry.viewport);
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
}
code snippet:
var geocoder, map, marker;
function codeAddress() {
var address = document.getElementById("address").value;
geocoder.geocode({
'address': address
}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
if (marker && marker.setMap) marker.setMap(null);
marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
if (results[0].geometry.viewport)
map.fitBounds(results[0].geometry.viewport);
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
}
function initialize() {
geocoder = new google.maps.Geocoder();
map = new google.maps.Map(
document.getElementById("map_canvas"), {
mapTypeId: google.maps.MapTypeId.ROADMAP
});
google.maps.event.addDomListener(document.getElementById('btn'), 'click', codeAddress);
codeAddress();
}
google.maps.event.addDomListener(window, "load", initialize);
html,
body,
#map_canvas {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<input id="address" value="Palo Alto, CA" />
<input id="btn" value="Geocode" type="button" />
<div id="map_canvas"></div>

var geocoder = new google.maps.Geocoder();
geocoder.geocode({ 'address': zipcode }, function(results, status)
{
if (status == google.maps.GeocoderStatus.OK)
{
map.setCenter(results[0].geometry.location);
map.setZoom(12);
}
else
{
alert(zipcode + " not found");
console.log("status : ", status);
}
});

Related

Simple Geocoding Map in JQuery

How do I make a simple map in Jquery that plots only one location. Here is the code I have now. this plots an array of locations, but I just need a simple map that will plot one point in Lng,Lat format. I am using the google geocoder for this.
var geocoder;
var map;
var markersArray = [];
var bounds;
var infowindow = new google.maps.InfoWindow({
content: ''
});
function initialize() {
geocoder = new google.maps.Geocoder();
bounds = new google.maps.LatLngBounds();
var myOptions = {
zoom: 2,
mapTypeId: google.maps.MapTypeId.ROADMAP,
navigationControlOptions: {
style: google.maps.NavigationControlStyle.SMALL
}
};
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
geocoder.geocode({
'address': '5th Avenus New Yort'
}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
bounds.extend(results[0].geometry.location);
markersArray.push(marker);
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
plotMarkers();
}
var locationsArray = [
['Google Official', '1600 Amphitheatre Parkway, Mountain View, USA'],
['Google 1', '112 S. Main St., Ann Arbor, USA'],
['Google 2', '10 10th Street NE, Suite 600 USA']
];
function plotMarkers() {
var i;
for (i = 0; i < locationsArray.length; i++) {
codeAddresses(locationsArray[i]);
}
}
function codeAddresses(address) {
geocoder.geocode({
'address': address[1]
}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(address[0]);
infowindow.open(map, this);
});
bounds.extend(results[0].geometry.location);
markersArray.push(marker);
} else {
alert("Geocode was not successful for the following reason: " + status);
}
map.fitBounds(bounds);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
I then call this in my file with:
<body>
<div id="map_canvas" style="width: 100%; height: 700px;"></div>
</body>
</html>
I need the new map to plot one lat and lng point along with posting the listing the location in the textbook as above. I can not figure out how to do this without an array.
It seems like you're using an example that shows multiple markers.
I haven't tested it, but I think this JavaScript is close:
var geocoder;
var map;
function initialize() {
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(-34.397, 150.644);
var mapOptions = {
zoom: 8,
center: latlng
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
geocoder.geocode( { 'address': '5th Avenue New York' }, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
} else {
alert('Geocode was not successful for the following reason: ' + status);
}
});
}
google.maps.event.addDomListener(window, 'load', initialize);
Review this for more information: https://developers.google.com/maps/documentation/javascript/geocoding

Hardcode a postal address for use with Geocoding

I have been looking at an example of geocoding on the Google maps dev website. I found this example and would like to as an experiment hard code a postal code instead of using the input box to get the address (the overall aim is to have an xml place the postal address inside here). Is it just a case of hard coding the postal address inside of the 'address' tags? I did try this but to no joy. Hope that makes sense?
<script>
var geocoder;
var map;
function initialize() {
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(-34.397, 150.644);
var mapOptions = {
zoom: 8,
center: latlng
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
}
function codeAddress() {
var address = document.getElementById('address').value;
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
} else {
alert('Geocode was not successful for the following reason: ' + status);
}
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="panel">
<input id="address" type="textbox" value="Sydney, NSW">
<input type="button" value="Geocode" onclick="codeAddress()">
</div>
<div id="map-canvas"></div>
</body>
https://developers.google.com/maps/documentation/javascript/examples/geocoding-simple
If I understood well, you can try like this:
http://jsfiddle.net/7g7qG/
var geocoder;
var map;
function initialize() {
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(-34.397, 150.644);
var mapOptions = {
zoom: 8,
center: latlng
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
codeAddress('London')
}
function codeAddress(address) {
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
} else {
alert('Geocode was not successful for the following reason: ' + status);
}
});
}
google.maps.event.addDomListener(window, 'load', initialize);

Google Maps V3: initialize Streetview + geocoding

Daer All I have set Google Maps in my project and work fine. Now I would like to initialize the following script with "Street View Panorama" instead of stardard map.
I have found an exemple on google developers but I'm not able to combinate it with the geocoding function.
So what if I would like to initialize street view instead of standard map in this code?
var geocoder;
var map;
function initialize() {
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(-34.397, 150.644);
var mapOptions = {
zoom: 16,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
}//*I need street view instead of standard map (StreetViewPanorama)
function codeAddress() {
var address = document.getElementById("address").value;
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
} else {
alert("Geocode was not successful for the following reason: " + status);
}
});
}
html
<div id="map-canvas" style="width: 600px; height: 450px; float:right"></div>
<div>
<input id="address" type="text" value="Milan, Italy Viale Tunisia 30">
</div>

placing multiple markers on google map from array

I'm trying to place multiple markers on a map that are provided from an array. Right now only my initial point loads (NYC).
var geocoder;
var map;
var markersArray = [];
//plot initial point using geocode instead of coordinates (works just fine)
function initialize() {
geocoder = new google.maps.Geocoder();
latlang = geocoder.geocode( { 'address': 'New York City'}, function(results, status) { //use latlang to enter city instead of coordinates
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
markersArray.push(marker);
}
else{
alert("Geocode was not successful for the following reason: " + status);
}
});
var myOptions = {
center: latlang, zoom: 5, mapTypeId: google.maps.MapTypeId.SATELLITE,
navigationControlOptions: {
style: google.maps.NavigationControlStyle.SMALL
}
};
map = new google.maps.Map(document.getElementById("map_canvas"),
myOptions);
}
///////////////////////////////////////////////////////////
//Everything below this line is for attempting to plot the markers
var locationsArray = ['Pittsburgh','Chicago', 'Atlanta'];
function plotMarkers(){
for(var i = 0; i < locationsArray.length; i++){
codeAddresses(locationsArray[i]);
}
}
function codeAddresses(address){
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
//markersArray.push(marker);
}
else{
alert("Geocode was not successful for the following reason: " + status);
}
});
}
You're not actually calling plotMarkers anywhere in the snippet above! When I added into the end of initialize (after map is defined) it works great! http://jsfiddle.net/T5aKE/
...
map = new google.maps.Map...
plotMarkers();
...

Reverse Geocode on Client Side (Google Maps V3 API)

How do you do a Reverse Geocode on the clientside using Google Maps V3 API? The forward geocode from address to LatLng is straight forward (code below), but how do you do the same for reverse geocode?
Normal Geocode Code:
geocoder = new google.maps.Geocoder();
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
The process is exactly the same, with the minor difference that instead of supplying an address object to the geocode function you supply a LatLng object
Reverse Geocode Code:
var input = document.getElementById("latlng").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) {
if (results[1]) {
map.setZoom(11);
marker = new google.maps.Marker({
position: latlng,
map: map
});
infowindow.setContent(results[1].formatted_address);
infowindow.open(map, marker);
} else {
alert("No results found");
}
} else {
alert("Geocoder failed due to: " + status);
}
});
Example directly from Google
Hope that helps.

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