Add a popover to a marker

The following example adds a popover to a marker on the Golden Gate Bridge.

Read the documentation.

JavaScript

async function init() {
    const { Map3DElement, Marker3DInteractiveElement, PopoverElement } =
        await google.maps.importLibrary('maps3d');

    const map = new Map3DElement({
        center: { lat: 37.8204, lng: -122.4783, altitude: 0.407 },
        range: 4000,
        tilt: 74,
        heading: 38,
        mode: 'HYBRID',
    });

    // Popovers can only be added to interactive Markers
    const interactiveMarker = new Marker3DInteractiveElement({
        altitudeMode: 'ABSOLUTE',
        position: { lat: 37.819852, lng: -122.478549, altitude: 100 },
    });

    const popover = new PopoverElement({
        open: false,
        positionAnchor: interactiveMarker,
    });

    popover.append('Golden Gate Bridge');

    interactiveMarker.addEventListener('gmp-click', () => {
        // toggle the marker to the other state (unlee you are clicking on the marker itself when it reopens it)
        popover.open = !popover.open;
    });

    map.append(interactiveMarker);
    map.append(popover);

    document.body.append(map);
}

void init();

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;
}

HTML

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

        <link rel="stylesheet" type="text/css" href="./style.css" />
        <script type="module" src="./index.js"></script>
        <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))})({
                key: "GOOGLE_MAPS_API_KEY"
            });
        </script>
    </head>
    <body>
        <div id="map"></div>
    </body>
</html>

Clone Sample

Git and Node.js are required to run this sample locally. Follow these instructions to install Node.js and NPM. You will also need a Google Maps API key.

The following commands clone the repository, install dependencies, and copy the environment file. 

  git clone https://github.com/googlemaps-samples/js-api-samples.git
  cd js-api-samples
  npm i
  cp .env.template .env

Once you copy the environment file, make sure to open the .env file and replace <Insert your own development API key here> with your actual API key before starting the sample. 

  cd samples/3d-popover-marker
  npm start