Google Maps JavaScript API - Automate Zoom Level?

Question

I\'m working with multiple map markers. Currently I use map.fitBounds(bounds); in my JavaScript to resize the map. bounds contains multiple LatLng

Answer 1

//Custom zoom if you have just type of geocode response    
function get_node(node_name){
return document.getElementById(node_name);
}

var map_options = {};
var options = {
    'zoom'      : LB_listing.zoomopt,
    'minZoom'   : 3,
    'center'    : latlng,
    'mapTypeId' : google.maps.MapTypeId.ROADMAP
};
map_options.map = new google.maps.Map(get_node('googleMap'), options);


geocoder = new google.maps.Geocoder();
var address = $("#search_location").val();
geocoder.geocode( { 'address': address}, function(results, status) {
    if (status == google.maps.GeocoderStatus.OK) {
        switch(results[0].types[0]){
            case 'street_address':
                map_options.zoomopt = 6;
                break;
            case 'route':
                map_options.zoomopt = 14;
                break;
            case 'bus_station':
                map_options.zoomopt = 14;
                break;
            case 'intersection':
                map_options.zoomopt = 6;
                break;
            case 'political':
                map_options.zoomopt = 14;
                break;
            case 'country':
                map_options.zoomopt = 5;
                break;
            case 'administrative_area_level_1':
                map_options.zoomopt = 6;
                break;
            case 'administrative_area_level_2':
                map_options.zoomopt = 6;
                break;
            case 'administrative_area_level_3':
                map_options.zoomopt = 6;
                break;
            case 'administrative_area_level_4':
                map_options.zoomopt = 6;
                break;
            case 'administrative_area_level_5':
                map_options.zoomopt = 6;
                break;
            case 'colloquial_area':
                map_options.zoomopt = 6;
                break;
            case 'locality':
                map_options.zoomopt = 11;
                break;
            case 'ward':
                map_options.zoomopt = 6;
                break;
            case 'sublocality':
                map_options.zoomopt = 6;
                break;
            case 'neighborhood':
                map_options.zoomopt = 14;
                break;
            case 'premise':
                map_options.zoomopt = 6;
                break;
            case 'subpremise':
                map_options.zoomopt = 6;
                break;
            case 'postal_code':
                map_options.zoomopt = 6;
                break;
            case 'natural_feature':
                map_options.zoomopt = 6;
                break;
            case 'airport':
                map_options.zoomopt = 6;
                break;
            case 'park':
                map_options.zoomopt = 6;
                break;
            case 'point_of_interest':
                map_options.zoomopt = 6;
                break;
            default:
                map_options.zoomopt = 6;
                break;
        }
        map_options.newLocation(results[0].geometry.location.lat(),results[0].geometry.location.lng());
    }else {
        $('#message_error').show().delay(3000).fadeOut(1000);
        $('#message_error_msg').html("Geocode was not successful for the following reason: " + status);
    }
});

map_options.newLocation = function(newLat,newLng) {
map_options.map.setCenter({
    lat : newLat,
    lng : newLng
});
map_options.map.setZoom(map_options.zoomopt);

}