I've just begun using the Google Maps API (v3.0) and have had a good deal of success so far. I am loading a set of objects with Latitude & Longitude values from a database, passing them into my script, and looping over them in the script in order to add them to the map.
I am using the "bounds.extend()
/ map.fitBounds()
" method of setting the map's zoom & bounds (see code below), which works as expected the first time around; however, if I clear out the existing markers, fetch another set of objects, and do the same thing on the same map instance, it sets the bounds incorrectly, usually resulting in a minimum zoom (an astronaut's view).
My suspicion is that my map object has some memory of the previous set of bounds that I've given it and that I need to find a way to clear these bounds before assigning my new ones, but I really can't be too sure.
Any help is greatly appreciated!
var locationList = [];
for (var i = 0; i < mapPoints.length; i++) { // mapPoints is a collection of DTOs
var mapPoint = mapPoints[i];
var location = new google.maps.LatLng(mapPoint.Latitude, mapPoint.Longitude);
locationList.push(location);
var marker = new google.maps.Marker({
map: map,
icon: '/Content/images/map/' + mapPoint.Status.Icon,
shadow: '/Content/images/map/shadow.png',
position: location
});
markers.push(marker); // markers is an Array that is managed outside this loop
}
var bounds = new google.maps.LatLngBounds();
for (var j = 0; j < locationList.length; j++)
bounds.extend(locationList[j]);
map.fitBounds(bounds);
This isn't the answer, so to speak, but a (slightly hacky) workaround that I discovered on a thread in the Google Maps Javascript API v3 group:
//map.fitBounds(bounds);
setTimeout( function() { map.fitBounds( bounds ); }, 1 );
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