Country specific zoom level in Google Maps API

1. go to http://www.gadm.org/download, download the adm0 file for the Netherlands

2. Combine that polygon (as the inner ring(s)) with a polygon that covers the whole earth

3. use the winding reversal tool to reverse any inner polygons that don’t wind opposite the outer ring.

4. zip up the resulting kml, rename to kmz. Display on the map using geoxml3

Code:

function initialize() {
    var map = new google.maps.Map(
    document.getElementById("map_canvas"), {
        center: new google.maps.LatLng(85.4419, -122.1419),
        zoom: 13,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    });
    var geocoder = new google.maps.Geocoder();
    var geoXml = new geoXML3.parser({
                    map: map,
                    zoom: false, 
                 });
    geoXml.parse("http://www.geocodezip.com/geoxml3_test/kmz/nld_adm0_inverted.kmz");
    google.maps.event.addListener(geoXml,'parsed', function() {
      geocoder.geocode( { 'address': "Netherlands"}, function(results, status) {
        if (status == google.maps.GeocoderStatus.OK) {
          map.fitBounds(results[0].geometry.viewport);
        } else {
          alert("Geocode was not successful for the following reason: " + status);
        }
      });    
    })
}
google.maps.event.addDomListener(window, "load", initialize);

Working example

To restrict it to be always displayed on the map see this page from Mike Williams’ v2 tutorial

working example