Es kann losgehen!

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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

Polygon Arrays

Read the documentation or view this example full screen.

// This example creates a simple polygon representing the Bermuda Triangle.
// When the user clicks on the polygon an info window opens, showing
// information about the polygon's coordinates.

var map;
var infoWindow;

function initMap() {
  map = new google.maps.Map(document.getElementById('map'), {
    zoom: 5,
    center: {lat: 24.886, lng: -70.268},
    mapTypeId: 'terrain'
  });

  // Define the LatLng coordinates for the polygon.
  var triangleCoords = [
      {lat: 25.774, lng: -80.190},
      {lat: 18.466, lng: -66.118},
      {lat: 32.321, lng: -64.757}
  ];

  // Construct the polygon.
  var bermudaTriangle = new google.maps.Polygon({
    paths: triangleCoords,
    strokeColor: '#FF0000',
    strokeOpacity: 0.8,
    strokeWeight: 3,
    fillColor: '#FF0000',
    fillOpacity: 0.35
  });
  bermudaTriangle.setMap(map);

  // Add a listener for the click event.
  bermudaTriangle.addListener('click', showArrays);

  infoWindow = new google.maps.InfoWindow;
}

/** @this {google.maps.Polygon} */
function showArrays(event) {
  // Since this polygon has only one path, we can call getPath() to return the
  // MVCArray of LatLngs.
  var vertices = this.getPath();

  var contentString = '<b>Bermuda Triangle polygon</b><br>' +
      'Clicked location: <br>' + event.latLng.lat() + ',' + event.latLng.lng() +
      '<br>';

  // Iterate over the vertices.
  for (var i =0; i < vertices.getLength(); i++) {
    var xy = vertices.getAt(i);
    contentString += '<br>' + 'Coordinate ' + i + ':<br>' + xy.lat() + ',' +
        xy.lng();
  }

  // Replace the info window's content and position.
  infoWindow.setContent(contentString);
  infoWindow.setPosition(event.latLng);

  infoWindow.open(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>


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>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <title>Polygon Arrays</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 creates a simple polygon representing the Bermuda Triangle.
      // When the user clicks on the polygon an info window opens, showing
      // information about the polygon's coordinates.

      var map;
      var infoWindow;

      function initMap() {
        map = new google.maps.Map(document.getElementById('map'), {
          zoom: 5,
          center: {lat: 24.886, lng: -70.268},
          mapTypeId: 'terrain'
        });

        // Define the LatLng coordinates for the polygon.
        var triangleCoords = [
            {lat: 25.774, lng: -80.190},
            {lat: 18.466, lng: -66.118},
            {lat: 32.321, lng: -64.757}
        ];

        // Construct the polygon.
        var bermudaTriangle = new google.maps.Polygon({
          paths: triangleCoords,
          strokeColor: '#FF0000',
          strokeOpacity: 0.8,
          strokeWeight: 3,
          fillColor: '#FF0000',
          fillOpacity: 0.35
        });
        bermudaTriangle.setMap(map);

        // Add a listener for the click event.
        bermudaTriangle.addListener('click', showArrays);

        infoWindow = new google.maps.InfoWindow;
      }

      /** @this {google.maps.Polygon} */
      function showArrays(event) {
        // Since this polygon has only one path, we can call getPath() to return the
        // MVCArray of LatLngs.
        var vertices = this.getPath();

        var contentString = '<b>Bermuda Triangle polygon</b><br>' +
            'Clicked location: <br>' + event.latLng.lat() + ',' + event.latLng.lng() +
            '<br>';

        // Iterate over the vertices.
        for (var i =0; i < vertices.getLength(); i++) {
          var xy = vertices.getAt(i);
          contentString += '<br>' + 'Coordinate ' + i + ':<br>' + xy.lat() + ',' +
              xy.lng();
        }

        // Replace the info window's content and position.
        infoWindow.setContent(contentString);
        infoWindow.setPosition(event.latLng);

        infoWindow.open(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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Google Maps JavaScript API
Google Maps JavaScript API