考虑以下示例,它将在美国东北部生成10个随机点,并应用fitBounds()
方法。
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google Maps LatLngBounds.extend() Demo</title>
<script src="http://maps.google.com/maps/api/js?sensor=false"
type="text/javascript"></script>
</head>
<body>
<div id="map" style="width: 400px; height: 300px;"></div>
<script type="text/javascript">
var map = new google.maps.Map(document.getElementById('map'), {
mapTypeId: google.maps.MapTypeId.TERRAIN
});
var markerBounds = new google.maps.LatLngBounds();
var randomPoint, i;
for (i = 0; i < 10; i++) {
// Generate 10 random points within North East USA
randomPoint = new google.maps.LatLng(39.00 + (Math.random() - 0.5) * 20,
-77.00 + (Math.random() - 0.5) * 20);
// Draw a marker for each random point
new google.maps.Marker({
position: randomPoint,
map: map
});
// Extend markerBounds with each random point.
markerBounds.extend(randomPoint);
}
// At the end markerBounds will be the smallest bounding box to contain
// our 10 random points
// Finally we can call the Map.fitBounds() method to set the map to fit
// our markerBounds
map.fitBounds(markerBounds);
</script>
</body>
</html>
刷新此示例很多次,没有标记出现在视口外。至多,有时标记稍微从顶部时,隐藏在背后的控制修剪:
Google Maps LatLngBounds.extend() Demo http://img825.imageshack.us/img825/7424/fitboundsfit.png
,也是一文不值的fitBounds()
永远离开LatLngBounds
对象和视口之间小幅度。
fitBounds Padding http://img204.imageshack.us/img204/9149/fitit.png
fitBounds Padding http://img441.imageshack.us/img441/9615/fitus.png
您还可能有兴趣在检查出以下堆栈:这是在下面的截图,其中红色边框代表传递给fitBounds()
方法LatLngBounds
清楚地显示在话题溢出帖子: