我认为标题已经足够了,我甚至不知道如何为V2和V1 API做到这一点:/
谢谢:)
答案 0 :(得分:74)
正如其他答案所示,fitBounds()
方法应该可以解决问题。
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>
多次刷新此示例,没有标记出现在视口之外:
答案 1 :(得分:7)
这是方法:
map.fitBounds(bounds);
map.setCenter(bounds.getCenter());
bounds是坐标(标记)的数组。每次放置标记时都会执行以下操作:
bounds.extend(currLatLng);
答案 2 :(得分:1)
中心缩放取决于单个标记
var myCenter=new google.maps.LatLng(38.8106813,-89.9600172);
var map;
var marker;
var mapProp;
function initialize()
{
mapProp = {
center:myCenter,
zoom:8,
mapTypeId:google.maps.MapTypeId.ROADMAP
};
map=new google.maps.Map(document.getElementById("map"),mapProp);
marker=new google.maps.Marker({
position:myCenter,
animation:google.maps.Animation.BOUNCE,
title:"400 St. Louis Street Edwardsville, IL 62025"
});
marker.setMap(map);
google.maps.event.addListener(map, "zoom_changed", function() {
map.setCenter(myCenter);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
答案 3 :(得分:0)
计算右缩放以显示所有标记并非易事。但是有一个函数:GMap.fitBounds()
- 你定义一个边界(例如,你所有标记坐标的最极端点)并相应地设置地图。参见例如fitbounds() in Google maps api V3 does not fit bounds(答案!)是一个很好的例子。