Rotating 45° Imagery

This example creates a map showing satellite imagery tilted at 45 degrees, along with a button that will rotate the map periodically.

TypeScript

let map: google.maps.Map;

function initMap(): void {
  map = new google.maps.Map(document.getElementById("map") as HTMLElement, {
    center: { lat: 40.76, lng: -73.983 },
    zoom: 15,
    mapTypeId: "satellite",
    heading: 90,
    tilt: 45,
  });

  // add listener to button
  document.getElementById("rotate")!.addEventListener("click", autoRotate);
}

function rotate90(): void {
  const heading = map.getHeading() || 0;

  map.setHeading(heading + 90);
}

function autoRotate(): void {
  // Determine if we're showing aerial imagery.
  if (map.getTilt() !== 0) {
    window.setInterval(rotate90, 3000);
  }
}

declare global {
  interface Window {
    initMap: () => void;
  }
}
window.initMap = initMap;

JavaScript

let map;

function initMap() {
  map = new google.maps.Map(document.getElementById("map"), {
    center: { lat: 40.76, lng: -73.983 },
    zoom: 15,
    mapTypeId: "satellite",
    heading: 90,
    tilt: 45,
  });
  // add listener to button
  document.getElementById("rotate").addEventListener("click", autoRotate);
}

function rotate90() {
  const heading = map.getHeading() || 0;

  map.setHeading(heading + 90);
}

function autoRotate() {
  // Determine if we're showing aerial imagery.
  if (map.getTilt() !== 0) {
    window.setInterval(rotate90, 3000);
  }
}

window.initMap = initMap;

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;
}

#floating-panel {
  position: absolute;
  top: 10px;
  left: 25%;
  z-index: 5;
  background-color: #fff;
  padding: 5px;
  border: 1px solid #999;
  text-align: center;
  font-family: "Roboto", "sans-serif";
  line-height: 30px;
  padding-left: 10px;
}

HTML

<html>
  <head>
    <title>Rotating 45° Imagery</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div id="floating-panel">
      <input type="button" value="Auto Rotate" id="rotate" />
    </div>
    <div id="map"></div>

    <!-- 
     The `defer` attribute causes the callback to execute after the full HTML
     document has been parsed. For non-blocking uses, avoiding race conditions,
     and consistent behavior across browsers, consider loading using Promises
     with https://www.npmjs.com/package/@googlemaps/js-api-loader.
    -->
    <script
      src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&callback=initMap&v=weekly"
      defer
    ></script>
  </body>
</html>

Try Sample

Clone Sample

Git and Node.js are required to run this sample locally. Follow these instructions to install Node.js and NPM. The following commands clone, install dependencies and start the sample application.

  git clone -b sample-aerial-rotation https://github.com/googlemaps/js-samples.git
  cd js-samples
  npm i
  npm start

Other samples can be tried by switching to any branch beginning with sample-SAMPLE_NAME.

  git checkout sample-SAMPLE_NAME
  npm i
  npm start