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Search for up to 200 places with Radar Search


Read the documentation or view this example fullscreen.

// This example requires the Places library. Include the libraries=places
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">

var map;
var infoWindow;
var service;

function initMap() {
  map = new google.maps.Map(document.getElementById('map'), {
    center: {lat: -33.867, lng: 151.206},
    zoom: 15,
    styles: [{
      stylers: [{ visibility: 'simplified' }]
    }, {
      elementType: 'labels',
      stylers: [{ visibility: 'off' }]
    }]
  });

  infoWindow = new google.maps.InfoWindow();
  service = new google.maps.places.PlacesService(map);

  // The idle event is a debounced event, so we can query & listen without
  // throwing too many requests at the server.
  map.addListener('idle', performSearch);
}

function performSearch() {
  var request = {
    bounds: map.getBounds(),
    keyword: 'best view'
  };
  service.radarSearch(request, callback);
}

function callback(results, status) {
  if (status !== google.maps.places.PlacesServiceStatus.OK) {
    console.error(status);
    return;
  }
  for (var i = 0, result; result = results[i]; i++) {
    addMarker(result);
  }
}

function addMarker(place) {
  var marker = new google.maps.Marker({
    map: map,
    position: place.geometry.location,
    icon: {
      url: 'https://developers.google.com/maps/documentation/javascript/images/circle.png',
      anchor: new google.maps.Point(10, 10),
      scaledSize: new google.maps.Size(10, 17)
    }
  });

  google.maps.event.addListener(marker, 'click', function() {
    var request = {placeId: place.place_id};

    service.getDetails(request, function(result, status) {
      if (status !== google.maps.places.PlacesServiceStatus.OK) {
        console.error(status);
        return;
      }
      infoWindow.setContent(result.name);
      infoWindow.open(map, marker);
    });
  });
}
<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 src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&callback=initMap&libraries=places,visualization" async defer></script>

Try it yourself

Hover at top right of the code block to copy the code or open it in JSFiddle.

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Search for up to 200 places with Radar Search</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>
    <script>
      // This example requires the Places library. Include the libraries=places
      // parameter when you first load the API. For example:
      // <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">

      var map;
      var infoWindow;
      var service;

      function initMap() {
        map = new google.maps.Map(document.getElementById('map'), {
          center: {lat: -33.867, lng: 151.206},
          zoom: 15,
          styles: [{
            stylers: [{ visibility: 'simplified' }]
          }, {
            elementType: 'labels',
            stylers: [{ visibility: 'off' }]
          }]
        });

        infoWindow = new google.maps.InfoWindow();
        service = new google.maps.places.PlacesService(map);

        // The idle event is a debounced event, so we can query & listen without
        // throwing too many requests at the server.
        map.addListener('idle', performSearch);
      }

      function performSearch() {
        var request = {
          bounds: map.getBounds(),
          keyword: 'best view'
        };
        service.radarSearch(request, callback);
      }

      function callback(results, status) {
        if (status !== google.maps.places.PlacesServiceStatus.OK) {
          console.error(status);
          return;
        }
        for (var i = 0, result; result = results[i]; i++) {
          addMarker(result);
        }
      }

      function addMarker(place) {
        var marker = new google.maps.Marker({
          map: map,
          position: place.geometry.location,
          icon: {
            url: 'https://developers.google.com/maps/documentation/javascript/images/circle.png',
            anchor: new google.maps.Point(10, 10),
            scaledSize: new google.maps.Size(10, 17)
          }
        });

        google.maps.event.addListener(marker, 'click', function() {
          var request = {placeId: place.place_id};

          service.getDetails(request, function(result, status) {
            if (status !== google.maps.places.PlacesServiceStatus.OK) {
              console.error(status);
              return;
            }
            infoWindow.setContent(result.name);
            infoWindow.open(map, marker);
          });
        });
      }
    </script>
  </head>
  <body>
    <div id="map"></div>
    <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=places,visualization" async defer></script>
  </body>
</html>

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