Make markers accessible

The following example creates a 3D map with accessible markers.

Read the documentation.

JavaScript

async function initMap() {
    const { Map3DElement, Marker3DInteractiveElement, PopoverElement } = await google.maps.importLibrary("maps3d");
    const { PinElement } = await google.maps.importLibrary("marker");
    const map = new Map3DElement({
        center: { lat: 34.8405, lng: -111.7909, altitude: 1322.70 }, range: 13279.50, tilt: 67.44, heading: 0.01,
        mode: 'SATELLITE'
    });
    // Set LatLng and title text for the markers. The first marker (Boynton Pass)
    // receives the initial focus when tab is pressed. Use arrow keys to move
    // between markers; press tab again to cycle through the map controls.
    const tourStops = [
        {
            position: { lat: 34.8791806, lng: -111.8265049 },
            title: "Boynton Pass",
        },
        {
            position: { lat: 34.8559195, lng: -111.7988186 },
            title: "Airport Mesa",
        },
        {
            position: { lat: 34.832149, lng: -111.7695277 },
            title: "Chapel of the Holy Cross",
        },
        {
            position: { lat: 34.823736, lng: -111.8001857 },
            title: "Red Rock Crossing",
        },
        {
            position: { lat: 34.800326, lng: -111.7665047 },
            title: "Bell Rock",
        },
    ];
    tourStops.forEach(({ position, title }, i) => {
        const pin = new PinElement({
            glyph: `${i + 1}`,
            scale: 1.5,
            glyphColor: "#FFFFFF"
        });
        const popover = new PopoverElement();
        const content = `${i + 1}. ${title}`;
        const header = document.createElement('span');
        // Include the label for screen readers.
        header.ariaLabel = `This is marker ${i + 1}. ${title}`;
        header.slot = 'header';
        popover.append(header);
        popover.append(content);
        const interactiveMarker = new Marker3DInteractiveElement({
            // Include a title, used for accessibility text for use by screen readers.
            title,
            position,
            gmpPopoverTargetElement: popover
        });
        interactiveMarker.append(pin);
        map.append(interactiveMarker);
        map.append(popover);
    });
    document.body.append(map);
}
initMap();
index.js

CSS

/* * Always set the map height explicitly to define the size of the div element
 * that contains the map. 
 */
html,
map {
  height: 100%;
}
body {
  height: 100%;
  margin: 0;
  padding: 0;
}
style.css

HTML

<html>
  <head>
    <title>Map</title>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div id="map"></div>

    <!-- prettier-ignore -->
    <script>(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))})
        ({key: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "beta",});</script>
  </body>
</html>
index.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 https://github.com/googlemaps-samples/js-api-samples.git
  cd samples/3d-accessibility-features
  npm i
  npm start