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Die Google Maps JavaScript API aktivieren

Zum Einstieg führen wir Sie durch die Google Developers Console, wo Sie vorab Folgendes tun müssen:

  1. Ein Projekt erstellen oder auswählen
  2. Die Google Maps JavaScript API und zugehörige Dienste aktivieren
  3. Zugehörige Schlüssel erstellen
Weiter

Data Layer: Polygon

This example uses the Data layer to create a polygon with two internal holes. See the developer's guide. If you're not using the data layer to create an inner hole, you must define a path wound in the opposite direction to the outer path as shown in this alternative.

You can also view this example full screen.

// This example uses the Google Maps JavaScript API's Data layer
// to create a rectangular polygon with 2 holes in it.

function initMap() {
  var map = new google.maps.Map(document.getElementById('map'), {
    zoom: 6,
    center: {lat: -33.872, lng: 151.252},
  });

  // Define the LatLng coordinates for the outer path.
  var outerCoords = [
    {lat: -32.364, lng: 153.207}, // north west
    {lat: -35.364, lng: 153.207}, // south west
    {lat: -35.364, lng: 158.207}, // south east
    {lat: -32.364, lng: 158.207}  // north east
  ];

  // Define the LatLng coordinates for an inner path.
  var innerCoords1 = [
    {lat: -33.364, lng: 154.207},
    {lat: -34.364, lng: 154.207},
    {lat: -34.364, lng: 155.207},
    {lat: -33.364, lng: 155.207}
  ];

  // Define the LatLng coordinates for another inner path.
  var innerCoords2 = [
    {lat: -33.364, lng: 156.207},
    {lat: -34.364, lng: 156.207},
    {lat: -34.364, lng: 157.207},
    {lat: -33.364, lng: 157.207}
  ];

  map.data.add({geometry: new google.maps.Data.Polygon([outerCoords,
                                                        innerCoords1,
                                                        innerCoords2])})
}
<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>


Probieren Sie es selbst aus

Bewegen Sie die Maus oben rechts über den Codeblock, um den Code zu kopieren, oder öffnen Sie ihn in JSFiddle.

<!DOCTYPE html>
<html>
  <head>
    <title>Data Layer: Polygon</title>
    <meta name="viewport" content="initial-scale=1.0">
    <meta charset="utf-8">
    <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 uses the Google Maps JavaScript API's Data layer
      // to create a rectangular polygon with 2 holes in it.

      function initMap() {
        var map = new google.maps.Map(document.getElementById('map'), {
          zoom: 6,
          center: {lat: -33.872, lng: 151.252},
        });

        // Define the LatLng coordinates for the outer path.
        var outerCoords = [
          {lat: -32.364, lng: 153.207}, // north west
          {lat: -35.364, lng: 153.207}, // south west
          {lat: -35.364, lng: 158.207}, // south east
          {lat: -32.364, lng: 158.207}  // north east
        ];

        // Define the LatLng coordinates for an inner path.
        var innerCoords1 = [
          {lat: -33.364, lng: 154.207},
          {lat: -34.364, lng: 154.207},
          {lat: -34.364, lng: 155.207},
          {lat: -33.364, lng: 155.207}
        ];

        // Define the LatLng coordinates for another inner path.
        var innerCoords2 = [
          {lat: -33.364, lng: 156.207},
          {lat: -34.364, lng: 156.207},
          {lat: -34.364, lng: 157.207},
          {lat: -33.364, lng: 157.207}
        ];

        map.data.add({geometry: new google.maps.Data.Polygon([outerCoords,
                                                              innerCoords1,
                                                              innerCoords2])})
      }
    </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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Google Maps JavaScript API
Google Maps JavaScript API