Basic polygon

This example creates polygon around lower Manhattan.

async function init() {
    const { Map3DElement, MapMode, Polygon3DElement } = await google.maps.importLibrary("maps3d");
    const map3DElement = new Map3DElement({
        center: { lat: 40.6842, lng: -74.0019, altitude: 1000 },
        heading: 340,
        tilt: 70,
        mode: MapMode.HYBRID,
    });
    const polygonOptions = {
        strokeColor: "#0000ff80",
        strokeWidth: 8,
        fillColor: "#ff000080",
        drawsOccludedSegments: false,
    };
    const examplePolygon = new google.maps.maps3d.Polygon3DElement(polygonOptions);
    examplePolygon.outerCoordinates = [
        { lat: 40.7144, lng: -74.0208 },
        { lat: 40.6993, lng: -74.019 },
        { lat: 40.7035, lng: -74.0004 },
        { lat: 40.7144, lng: -74.0208 }
    ];
    map3DElement.append(examplePolygon);
    document.body.append(map3DElement);
}
init();index.js

/* * 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>
  <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: "alpha",});</script>
  </body>
</html>index.html

Try Sample

JSFiddle.net

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-polygon
  npm i
  npm start