Custom Street View Panoramas

async function init(): Promise<void> {
    // Request needed libraries.
    const [{ StreetViewPanorama }, { Size }] = await Promise.all([
        google.maps.importLibrary('streetView'),
        google.maps.importLibrary('core'),
    ]);

    // Construct the appropriate StreetViewPanoramaData given
    // the passed pano IDs.
    function getCustomPanorama(
        pano: string
    ): google.maps.StreetViewPanoramaData | null {
        if (pano === 'reception') {
            return {
                location: {
                    pano: 'reception',
                    description: 'Google Sydney - Reception',
                },
                links: [],
                // The text for the copyright control.
                copyright: 'Imagery (c) 2010 Google',
                // The definition of the tiles for this panorama.
                tiles: {
                    tileSize: new Size(1024, 512),
                    worldSize: new Size(2048, 1024),
                    // The heading in degrees at the origin of the panorama
                    // tile set.
                    centerHeading: 105,
                    getTileUrl: getCustomPanoramaTileUrl,
                },
            };
        }
        return null;
    }

    // Set up Street View and initially set it visible. Register the
    // custom panorama provider function. Set the StreetView to display
    // the custom panorama 'reception' which we check for below.
    const panorama = new StreetViewPanorama(document.getElementById('map')!, {
        pano: 'reception',
        visible: true,
    });

    panorama.registerPanoProvider(getCustomPanorama);
}

// Return a pano image given the panoID.
function getCustomPanoramaTileUrl(
    pano: string,
    zoom: number,
    tileX: number,
    tileY: number
): string {
    return `https://developers.google.com/maps/documentation/javascript/examples/full/images/panoReception1024-${String(zoom)}-${String(tileX)}-${String(tileY)}.jpg`;
}

void init();
index.ts

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

    // Construct the appropriate StreetViewPanoramaData given
    // the passed pano IDs.
    function getCustomPanorama(pano) {
        if (pano === 'reception') {
            return {
                location: {
                    pano: 'reception',
                    description: 'Google Sydney - Reception',
                },
                links: [],
                // The text for the copyright control.
                copyright: 'Imagery (c) 2010 Google',
                // The definition of the tiles for this panorama.
                tiles: {
                    tileSize: new Size(1024, 512),
                    worldSize: new Size(2048, 1024),
                    // The heading in degrees at the origin of the panorama
                    // tile set.
                    centerHeading: 105,
                    getTileUrl: getCustomPanoramaTileUrl,
                },
            };
        }
        return null;
    }

    // Set up Street View and initially set it visible. Register the
    // custom panorama provider function. Set the StreetView to display
    // the custom panorama 'reception' which we check for below.
    const panorama = new StreetViewPanorama(document.getElementById('map'), {
        pano: 'reception',
        visible: true,
    });

    panorama.registerPanoProvider(getCustomPanorama);
}

// Return a pano image given the panoID.
function getCustomPanoramaTileUrl(pano, zoom, tileX, tileY) {
    return `https://developers.google.com/maps/documentation/javascript/examples/full/images/panoReception1024-${String(zoom)}-${String(tileX)}-${String(tileY)}.jpg`;
}

void init();
index.js

/* 
 * 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;
}
style.css

<html>
    <head>
        <title>Custom Street View Panoramas</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>
index.html