streetview-overlays

Sample code supporting Google Maps Platform JavaScript API documentation. author(s): Geo Developer IX Documentation Team

HTML

<!doctype html>
<!--
 @license
 Copyright 2026 Google LLC. All Rights Reserved.
 SPDX-License-Identifier: Apache-2.0
-->

<html>
  <head>
    <title>Overlays Within Street View</title>

    <script>
      // prettier-ignore
      (g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})({
            });
    </script>
  </head>
  <body>
    <gmp-map map-id="DEMO_MAP_ID" center="40.729884, -73.990988" zoom="18">
      <input
        type="button"
        value="Toggle Street View"
        id="streetview-toggle-button"
        slot="control-block-start-inline-start" />
    </gmp-map>
  </body>
</html>

CSS

/**
 * @license
 * Copyright 2026 Google LLC. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */

/* 
 * 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;
}

#streetview-toggle-button {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 17px;
  border: none;
  background: white;
  cursor: pointer;
  border-radius: 2px;
  box-shadow: 0 1px 4px -1px rgba(0, 0, 0, 0.3);
  margin: 10px 0px 10px -2px;
  font-family: Roboto, Arial, sans-serif;
  font-size: 18px;
  font-weight: 400;
  color: rgb(86, 86, 86);
}

#streetview-toggle-button:hover {
  background: #f4f4f4;
  color: #000;
}

JavaScript

/**
 * @license
 * Copyright 2026 Google LLC. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */

const ASSET_BASE_URL = new URL(
  'https://maps-docs-team.web.app/samples/streetview-overlays/dist/'
);

let panorama;
let innerMap;

async function init() {
  // Request needed libraries.
  const [{ Marker }] = await Promise.all([
    google.maps.importLibrary('marker'),
    google.maps.importLibrary('maps'),
  ]);

  // Set the location of Astor Place.
  const astorPlace = { lat: 40.729884, lng: -73.990988 };

  const mapElement = document.querySelector('gmp-map');

  innerMap = mapElement.innerMap;

  document
    .getElementById('streetview-toggle-button')
    .addEventListener('click', toggleStreetView);

  const cafeIcon = document.createElement('img');
  cafeIcon.src = new URL('./cafe_icon.svg', ASSET_BASE_URL).href;

  const dollarIcon = document.createElement('img');
  dollarIcon.src = new URL('./bank_icon.svg', ASSET_BASE_URL).href;

  const busIcon = document.createElement('img');
  busIcon.src = new URL('./bus_icon.svg', ASSET_BASE_URL).href;

  // Set up the markers on the map
  new Marker({
    position: { lat: 40.730031, lng: -73.991428 },
    map: innerMap,
    title: 'Cafe',
    icon: cafeIcon.src,
  });

  new Marker({
    position: { lat: 40.729681, lng: -73.991138 },
    map: innerMap,
    title: 'Bank',
    icon: dollarIcon.src,
  });

  new Marker({
    position: { lat: 40.729559, lng: -73.990741 },
    map: innerMap,
    title: 'Bus Stop',
    icon: busIcon.src,
  });

  // We get the map's default panorama and set up some defaults.
  // Note that we don't yet set it visible.
  panorama = innerMap.getStreetView(); // TODO fix type
  panorama.setPosition(astorPlace);
  panorama.setPov({
    heading: 265,
    pitch: 0,
  });
}

function toggleStreetView() {
  const toggle = panorama.getVisible();

  if (!toggle) {
    panorama.setVisible(true);
  } else {
    panorama.setVisible(false);
  }
}

void init();
export {};