This example demonstrates the use of the ElevationService
object. Click on the map to display the elevation at the clicked point.
Read the documentation.
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 8,
center: {lat: 63.333, lng: -150.5}, // Denali.
mapTypeId: 'terrain'
});
var elevator = new google.maps.ElevationService;
var infowindow = new google.maps.InfoWindow({map: map});
// Add a listener for the click event. Display the elevation for the LatLng of
// the click inside the infowindow.
map.addListener('click', function(event) {
displayLocationElevation(event.latLng, elevator, infowindow);
});
}
function displayLocationElevation(location, elevator, infowindow) {
// Initiate the location request
elevator.getElevationForLocations({
'locations': [location]
}, function(results, status) {
infowindow.setPosition(location);
if (status === 'OK') {
// Retrieve the first result
if (results[0]) {
// Open the infowindow indicating the elevation at the clicked position.
infowindow.setContent('The elevation at this point <br>is ' +
results[0].elevation + ' meters.');
} else {
infowindow.setContent('No results found');
}
} else {
infowindow.setContent('Elevation service failed due to: ' + status);
}
});
}
<div id="map"></div>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
<!-- Replace the value of the key parameter with your own API key. --> <script async defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&callback=initMap"> </script>
Try it yourself
You can experiment with this code in JSFiddle by clicking the <> icon in the
top-right corner of the code window.
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Elevation Service</title>
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div id="map"></div>
<script>
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 8,
center: {lat: 63.333, lng: -150.5}, // Denali.
mapTypeId: 'terrain'
});
var elevator = new google.maps.ElevationService;
var infowindow = new google.maps.InfoWindow({map: map});
// Add a listener for the click event. Display the elevation for the LatLng of
// the click inside the infowindow.
map.addListener('click', function(event) {
displayLocationElevation(event.latLng, elevator, infowindow);
});
}
function displayLocationElevation(location, elevator, infowindow) {
// Initiate the location request
elevator.getElevationForLocations({
'locations': [location]
}, function(results, status) {
infowindow.setPosition(location);
if (status === 'OK') {
// Retrieve the first result
if (results[0]) {
// Open the infowindow indicating the elevation at the clicked position.
infowindow.setContent('The elevation at this point <br>is ' +
results[0].elevation + ' meters.');
} else {
infowindow.setContent('No results found');
}
} else {
infowindow.setContent('Elevation service failed due to: ' + status);
}
});
}
</script>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
</script>
</body>
</html>