Getting the bounds of a polyline in Google Maps API v3

Question

Is there any easy ways to find the bounding box of a polyline using Google Maps API v3? I'm working on a project where I need to update the bounds as data is added and removed from the map. This is pretty easy by just doing bd.extend(point) where bd is the bound object and point is a LatLng object. The problem is when I start removing data I would like it to change the bounds and zoom back in. Are there any built in functions that can do this or will I need to write something for myself?

Answer 1

Expanding on oenpelli's solution, this is the extended getBounds() method that I am using to recreate the functionality from V2 API. This is working perfectly in my project.

google.maps.Polyline.prototype.getBounds = function() {
    var bounds = new google.maps.LatLngBounds();
    this.getPath().forEach(function(item, index) {
        bounds.extend(new google.maps.LatLng(item.lat(), item.lng()));
    });
    return bounds;
};

Just remember that this needs to be added AFTER the API javascript is loaded, so in your init method.