I am loading KML onto my map. I use preserveViewport to preserve the
bounds and zoom of the map. That works as expected.
After loading the KML, I set a timer that after a period of time,
reloads the same KML using preserveViewport again. This time the map's
view is changed to fit the contents of the KML - not what I wanted or
expected. How do I fix this?
Here's a look at the javascript:
var _googleMapV3 = null;
function loadV3() {
if (GBrowserIsCompatible()) {
var mapTypes = new Array();
mapTypes.push(google.maps.MapTypeId.ROADMAP);
mapTypes.push(google.maps.MapTypeId.HYBRID);
mapTypes.push(google.maps.MapTypeId.TERRAIN);
var latlng = new google.maps.LatLng(cityLatitudeCenter,
cityLongitudeCenter);
var myOptions = {zoom: 8,
center: latlng,
mapTypeControlOptions: { mapTypeIds: mapTypes },
mapTypeId: google.maps.MapTypeId.TERRAIN };
_googleMapV3 = new
google.maps.Map(document.getElementById("googlemap"), myOptions);
loadKML();
}
else
{
alert("Sorry, the Google Maps API is not compatible with this browser");
}
}
var _kmlLayer = null;
function loadKML() {
if (_kmlLayer != null) {
_kmlLayer.setMap(null);
delete _kmlLayer;
}
_kmlLayer = new
google.maps.KmlLayer("http://geology.utah.gov/geo_guides/st_george/kmz/st_george_field_trip.kmz";,
{ map: _googleMapV3, preserveViewport: true, suppressInfoWindows :
false });
InitiatePageTimer(); // This method, loadKML() is called again when the
timer elapses
}
The first call to loadKML() works as expected. After a 15 second timer,
loadKML() is called again. This time" preserveViewport: true" is
ignored; the map view is changed.
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