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Aktifkan Google Maps JavaScript API

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  1. Buat atau pilih sebuah proyek
  2. Aktifkan Google Maps JavaScript API dan layanan terkait
  3. Buat kunci yang sesuai
Lanjutkan

Elevation service

This example demonstrates the use of the ElevationService object. Click on the map to display the elevation at the clicked point.

Read the documentation or view this example full screen.

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>

Cobalah sendiri

Arahkan ke atas kanan blok kode untuk menyalin kode atau membukanya dalam JSFiddle.

<!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>

Kirim masukan tentang...

Google Maps JavaScript API
Google Maps JavaScript API
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