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Activer Google Maps JavaScript API

Pour commencer, nous allons vous guider à travers la console Google Developers et effectuer deux ou trois petites choses :

  1. Créer ou sélectionner un projet
  2. Activer Google Maps JavaScript API et les services connexes
  3. Créer les clés appropriées
Continuer

Remove an overlay

Read the documentation or view this example full screen.

// This example adds a UI control allowing users to remove the
// ground overlay from the map.

var historicalOverlay;
var map;

function initMap() {
  map = new google.maps.Map(document.getElementById('map'), {
    zoom: 13,
    center: {lat: 40.740, lng: -74.18}
  });

  var imageBounds = {
    north: 40.773941,
    south: 40.712216,
    east: -74.12544,
    west: -74.22655
  };

  historicalOverlay = new google.maps.GroundOverlay(
      'https://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg',
      imageBounds);

  addOverlay();
}

function addOverlay() {
  historicalOverlay.setMap(map);
}

function removeOverlay() {
  historicalOverlay.setMap(null);
}
<div id="floating-panel">
  <input onclick="removeOverlay();" type=button value="Remove overlay">
  <input onclick="addOverlay();" type=button value="Restore overlay">
</div>
<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;
}
#floating-panel {
  position: absolute;
  top: 10px;
  left: 25%;
  z-index: 5;
  background-color: #fff;
  padding: 5px;
  border: 1px solid #999;
  text-align: center;
  font-family: 'Roboto','sans-serif';
  line-height: 30px;
  padding-left: 10px;
}
 <!-- 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>

Essayez par vous-même

Placez la souris en haut à droite du bloc de code pour le copier ou l'ouvrir dans JSFiddle.

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <title>Remove an overlay</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;
      }
      #floating-panel {
        position: absolute;
        top: 10px;
        left: 25%;
        z-index: 5;
        background-color: #fff;
        padding: 5px;
        border: 1px solid #999;
        text-align: center;
        font-family: 'Roboto','sans-serif';
        line-height: 30px;
        padding-left: 10px;
      }
    </style>
  </head>
  <body>
    <div id="floating-panel">
      <input onclick="removeOverlay();" type=button value="Remove overlay">
      <input onclick="addOverlay();" type=button value="Restore overlay">
    </div>
    <div id="map"></div>
    <script>
      // This example adds a UI control allowing users to remove the
      // ground overlay from the map.

      var historicalOverlay;
      var map;

      function initMap() {
        map = new google.maps.Map(document.getElementById('map'), {
          zoom: 13,
          center: {lat: 40.740, lng: -74.18}
        });

        var imageBounds = {
          north: 40.773941,
          south: 40.712216,
          east: -74.12544,
          west: -74.22655
        };

        historicalOverlay = new google.maps.GroundOverlay(
            'https://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg',
            imageBounds);

        addOverlay();
      }

      function addOverlay() {
        historicalOverlay.setMap(map);
      }

      function removeOverlay() {
        historicalOverlay.setMap(null);
      }
    </script>
    <script async defer
    src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
    </script>
  </body>
</html>

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