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inline.html
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<!DOCTYPE html>
<html>
<head>
<title>Elevation Service</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<style type="text/css">
/* 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>
<script>
function initMap() {
const map = new google.maps.Map(document.getElementById("map"), {
zoom: 8,
center: { lat: 63.333, lng: -150.5 },
mapTypeId: "terrain",
});
const elevator = new google.maps.ElevationService();
const infowindow = new google.maps.InfoWindow({});
infowindow.open(map);
// Add a listener for the click event. Display the elevation for the LatLng of
// the click inside the infowindow.
map.addListener("click", (event) => {
displayLocationElevation(event.latLng, elevator, infowindow);
});
}
function displayLocationElevation(location, elevator, infowindow) {
// Initiate the location request
elevator.getElevationForLocations(
{
locations: [location],
},
(results, status) => {
infowindow.setPosition(location);
if (status === "OK" && results) {
// 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>
</head>
<body>
<div id="map"></div>
<!-- Async script executes immediately and must be after any DOM elements used in callback. -->
<script
src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
async
></script>
</body>
</html>