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Maximum Zoom Imagery Service

This example creates a map of metropolitan Tokyo. If the user clicks on the map, a popup window indicates the maximum zoom level at that location.

Read the documentation.

TypeScript

let map: google.maps.Map;
let maxZoomService: google.maps.MaxZoomService;
let infoWindow: google.maps.InfoWindow;

function initMap(): void {
  map = new google.maps.Map(document.getElementById("map") as HTMLElement, {
    zoom: 11,
    center: { lat: 35.6894, lng: 139.692 },
    mapTypeId: "hybrid",
  });

  infoWindow = new google.maps.InfoWindow();

  maxZoomService = new google.maps.MaxZoomService();

  map.addListener("click", showMaxZoom);
}

function showMaxZoom(e: google.maps.MouseEvent) {
  maxZoomService.getMaxZoomAtLatLng(
    e.latLng,
    (result: google.maps.MaxZoomResult) => {
      if (result.status !== "OK") {
        infoWindow.setContent("Error in MaxZoomService");
      } else {
        infoWindow.setContent(
          "The maximum zoom at this location is: " + result.zoom
        );
      }
      infoWindow.setPosition(e.latLng);
      infoWindow.open(map);
    }
  );
}

JavaScript

let map;
let maxZoomService;
let infoWindow;

function initMap() {
  map = new google.maps.Map(document.getElementById("map"), {
    zoom: 11,
    center: { lat: 35.6894, lng: 139.692 },
    mapTypeId: "hybrid",
  });
  infoWindow = new google.maps.InfoWindow();
  maxZoomService = new google.maps.MaxZoomService();
  map.addListener("click", showMaxZoom);
}

function showMaxZoom(e) {
  maxZoomService.getMaxZoomAtLatLng(e.latLng, (result) => {
    if (result.status !== "OK") {
      infoWindow.setContent("Error in MaxZoomService");
    } else {
      infoWindow.setContent(
        "The maximum zoom at this location is: " + result.zoom
      );
    }
    infoWindow.setPosition(e.latLng);
    infoWindow.open(map);
  });
}

CSS

/* 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;
}

HTML

<!DOCTYPE html>
<html>
  <head>
    <title>Maximum Zoom Imagery Service</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
      defer
    ></script>
    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script src="./app.js"></script>
  </head>
  <body>
    <div id="map"></div>
  </body>
</html>

All

<!DOCTYPE html>
<html>
  <head>
    <title>Maximum Zoom Imagery Service</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
      defer
    ></script>
    <style type="text/css">
      /* 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>
      "use strict";

      let map;
      let maxZoomService;
      let infoWindow;

      function initMap() {
        map = new google.maps.Map(document.getElementById("map"), {
          zoom: 11,
          center: {
            lat: 35.6894,
            lng: 139.692,
          },
          mapTypeId: "hybrid",
        });
        infoWindow = new google.maps.InfoWindow();
        maxZoomService = new google.maps.MaxZoomService();
        map.addListener("click", showMaxZoom);
      }

      function showMaxZoom(e) {
        maxZoomService.getMaxZoomAtLatLng(e.latLng, (result) => {
          if (result.status !== "OK") {
            infoWindow.setContent("Error in MaxZoomService");
          } else {
            infoWindow.setContent(
              "The maximum zoom at this location is: " + result.zoom
            );
          }

          infoWindow.setPosition(e.latLng);
          infoWindow.open(map);
        });
      }
    </script>
  </head>
  <body>
    <div id="map"></div>
  </body>
</html>
"use strict"; let map; let maxZoomService; let infoWindow; function initMap() { map = new google.maps.Map(document.getElementById("map"), { zoom: 11, center: { lat: 35.6894, lng: 139.692, }, mapTypeId: "hybrid", }); infoWindow = new google.maps.InfoWindow(); maxZoomService = new google.maps.MaxZoomService(); map.addListener("click", showMaxZoom); } function showMaxZoom(e) { maxZoomService.getMaxZoomAtLatLng(e.latLng, (result) => { if (result.status !== "OK") { infoWindow.setContent("Error in MaxZoomService"); } else { infoWindow.setContent( "The maximum zoom at this location is: " + result.zoom ); } infoWindow.setPosition(e.latLng); infoWindow.open(map); }); }
/* 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; }
<!DOCTYPE html> <html> <head> <title>Maximum Zoom Imagery Service</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBIwzALxUPNbatRBj3Xi1Uhp0fFzwWNBkE&callback=initMap&libraries=&v=weekly" defer ></script> <!-- jsFiddle will insert css and js --> </head> <body> <div id="map"></div> </body> </html>

Create a starter application from sample

A skeleton starter application using TypeScript, Webpack, and Babel can be generated from this sample using one of the methods below.

Run Locally

Node.js is required to run this sample locally. Follow these instructions to install Node.js and NPM.

npm i -g '@googlemaps/js-samples'
googlemaps-js-samples init maxzoom-simple DESTINATION_FOLDER

Run in Google Cloud Shell

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Run in Cloud Shell