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# Describe your issue


# Please report the version of Google Maps API
# Open the developer console and type: 'google.maps.version' and then press enter.
# Example:
# > google.maps.version
# <- "3.34.7"


# What steps will reproduce the problem? Please also provide a code sample which demonstrates your issue (e.g. via jsfiddle.net, or jsbin.com)

1. How to add polyline or polygon markers on Google map 3d (webGL).

2. We can use google.maps.marker.AdvancedMarkerView to add altitude but how to add a vertical line to point on the ground.  Ref. Image attached.

        const pinView = new google.maps.marker.PinView({
                background: "#4b2e83",
                borderColor: "#b7a57a",
                glyphColor: "#b7a57a",
                scale: 2.0,
        });
        const markerFloat = new google.maps.marker.AdvancedMarkerView({
                map: map,
                content: pinView.element,
                position: { lat: map.getCenter().lat(), lng: map.getCenter().lng(), altitude: 30 },
        });

3. I am using Google map API version beta with map_ID to load vector map (webGL)