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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

Dashed Lines (Symbols)

Read the documentation or view this example full screen.

// This example converts a polyline to a dashed line, by
// setting the opacity of the polyline to 0, and drawing an opaque symbol
// at a regular interval on the polyline.

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

  // Define a symbol using SVG path notation, with an opacity of 1.
  var lineSymbol = {
    path: 'M 0,-1 0,1',
    strokeOpacity: 1,
    scale: 4
  };

  // Create the polyline, passing the symbol in the 'icons' property.
  // Give the line an opacity of 0.
  // Repeat the symbol at intervals of 20 pixels to create the dashed effect.
  var line = new google.maps.Polyline({
    path: [{lat: 22.291, lng: 153.027}, {lat: 18.291, lng: 153.027}],
    strokeOpacity: 0,
    icons: [{
      icon: lineSymbol,
      offset: '0',
      repeat: '20px'
    }],
    map: map
  });
}
<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>Dashed Lines (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 converts a polyline to a dashed line, by
      // setting the opacity of the polyline to 0, and drawing an opaque symbol
      // at a regular interval on the polyline.

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

        // Define a symbol using SVG path notation, with an opacity of 1.
        var lineSymbol = {
          path: 'M 0,-1 0,1',
          strokeOpacity: 1,
          scale: 4
        };

        // Create the polyline, passing the symbol in the 'icons' property.
        // Give the line an opacity of 0.
        // Repeat the symbol at intervals of 20 pixels to create the dashed effect.
        var line = new google.maps.Polyline({
          path: [{lat: 22.291, lng: 153.027}, {lat: 18.291, lng: 153.027}],
          strokeOpacity: 0,
          icons: [{
            icon: lineSymbol,
            offset: '0',
            repeat: '20px'
          }],
          map: map
        });
      }
    </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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