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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

Animating Symbols

Read the documentation or view this example full screen.

// This example adds an animated symbol to a polyline.

function initMap() {
  var map = new google.maps.Map(document.getElementById('map'), {
    center: {lat: 20.291, lng: 153.027},
    zoom: 6,
    mapTypeId: 'terrain'
  });

  // Define the symbol, using one of the predefined paths ('CIRCLE')
  // supplied by the Google Maps JavaScript API.
  var lineSymbol = {
    path: google.maps.SymbolPath.CIRCLE,
    scale: 8,
    strokeColor: '#393'
  };

  // Create the polyline and add the symbol to it via the 'icons' property.
  var line = new google.maps.Polyline({
    path: [{lat: 22.291, lng: 153.027}, {lat: 18.291, lng: 153.027}],
    icons: [{
      icon: lineSymbol,
      offset: '100%'
    }],
    map: map
  });

  animateCircle(line);
}

// Use the DOM setInterval() function to change the offset of the symbol
// at fixed intervals.
function animateCircle(line) {
    var count = 0;
    window.setInterval(function() {
      count = (count + 1) % 200;

      var icons = line.get('icons');
      icons[0].offset = (count / 2) + '%';
      line.set('icons', icons);
  }, 20);
}
<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>

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>Animating Symbols</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>
      // This example adds an animated symbol to a polyline.

      function initMap() {
        var map = new google.maps.Map(document.getElementById('map'), {
          center: {lat: 20.291, lng: 153.027},
          zoom: 6,
          mapTypeId: 'terrain'
        });

        // Define the symbol, using one of the predefined paths ('CIRCLE')
        // supplied by the Google Maps JavaScript API.
        var lineSymbol = {
          path: google.maps.SymbolPath.CIRCLE,
          scale: 8,
          strokeColor: '#393'
        };

        // Create the polyline and add the symbol to it via the 'icons' property.
        var line = new google.maps.Polyline({
          path: [{lat: 22.291, lng: 153.027}, {lat: 18.291, lng: 153.027}],
          icons: [{
            icon: lineSymbol,
            offset: '100%'
          }],
          map: map
        });

        animateCircle(line);
      }

      // Use the DOM setInterval() function to change the offset of the symbol
      // at fixed intervals.
      function animateCircle(line) {
          var count = 0;
          window.setInterval(function() {
            count = (count + 1) % 200;

            var icons = line.get('icons');
            icons[0].offset = (count / 2) + '%';
            line.set('icons', icons);
        }, 20);
      }
    </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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