Can the Google Maps API base map be used as an overlay above a custom map layer?

Question

Is it possible to use the Google Maps API base map data as an overlay positioned above a custom map layer?

I would like to create a map that uses Go

Answer 1

Here is an example with a custom tile layer as the middle layer:

<script type="text/javascript">
function initMap() {
    // Map with everything off but boundaries
    var myOptions = {
        zoom: 2,
        center: new google.maps.LatLng(0, 0),
        styles: [
            {
                featureType: 'poi',
                stylers: [
                    { visibility: 'off' }
                ]
            },
            {
                featureType: 'road',
                stylers: [
                    { visibility: 'off' }
                ]
            },
            {
                featureType: 'transit',
                stylers: [
                    { visibility: 'off' }
                ]
            },
            {
                featureType: 'landscape',
                stylers: [
                    { visibility: 'off' }
                ]
            },
            {
                elementType: 'labels',
                stylers: [
                    { visibility: 'off' }
                ]
            }
        ]
    };

    var map = new google.maps.Map(document.getElementById("map"), myOptions);

    // Middle layer
    var tileLayer = new google.maps.ImageMapType({
        getTileUrl: "tiles URL here",
        tileSize: new google.maps.Size(256, 256),
        isPng: true
    });

    map.overlayMapTypes.push(tileLayer);

    // Top layer with everything off but roads
    var roadsLayer = [
        {
            featureType: 'all',
            stylers: [
                { visibility: 'off' }
            ]
        },
        {
            featureType: 'road',
            stylers: [
                { visibility: 'on' }
            ]
        }
    ];

    var roadsType = new google.maps.StyledMapType(roadsLayer, { name: 'roads' });
    map.overlayMapTypes.push(roadsType);
}