11

我正在初始化谷歌地图并定期（每 30 秒）更新地图上的标记/信息窗口。我正在使用 Bounds 自动放大，但确保所有标记/信息窗口都是可见的。

我的问题是信息窗口被放置在地图的边缘并且经常被切断。所以，每次更新地图时，我都需要缩小“1”。我可以使用“map.zoom”来确定当前的缩放级别并重新计算新的所需值，但我不知道如何设置这个新值。
缩放参数只能在初始化地图时设置吗？

确定这很简单吗？

以下是我的“更新”功能；

function updatePage() {
//clear current markers
clearOverlays();

var location1 = new google.maps.LatLng(team1data.lat, team1data.lon);
var location2 = new google.maps.LatLng(team2data.lat, team2data.lon);
var bounds = new google.maps.LatLngBounds();
bounds.extend(location1);
bounds.extend(location2);
map.fitBounds(bounds);
var curZoom = map.zoom;
console.log(curZoom);
var newZoom = (curZoom - 1);
console.log(newZoom);



var infowindow1 = new google.maps.InfoWindow({
content: '<div style=\"height:100px;width:230px;font-size:12px;\"><span style="font-weight:bold;">' + team1data.user + ' (' + team1data.location + '): </span>' + team1data.tweet + '</div>'
});

var infowindow2 = new google.maps.InfoWindow({  
 content: '<div style=\"height:100px;width:230px;font-size:12px;\"><span style="font-weight:bold;">' +  team2data.user + ' (' + team2data.location + '): </span>' + team2data.tweet + '</div>'  
});  

//can add as many markers to the map as you like
var marker1 = new google.maps.Marker({
  position: location1,
  map: map,
  title: "Team 1"
});
markersArray.push(marker1);

google.maps.event.addListener(marker1, 'click',
function() {
  infowindow.open(map, marker);
});

var marker2 = new google.maps.Marker({
 position: location2, 
 map: map,
 title:"Team 2"
});
markersArray.push(marker2);

infowindow1.open(map, marker1);
infowindow2.open(map, marker2);

setTimeout("team1tweets()", 30000)
}
4

1 回答 1

25

According to the API reference, you can use map.setZoom(zoom)

https://developers.google.com/maps/documentation/javascript/reference/map#Map.setZoom

It is also better to use map.getZoom() to get the zoom level, as map.zoom will only tell you the initial zoom level, not the current one.

于 2011-04-18T09:52:40.807 回答