Question

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/ infowindows都可见。

我的问题是，infowindows被放置在地图的边缘并经常被切断。因此，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期望值，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？

当然这很简单？

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)
}

Answer 1

根据API参考，您可以使用map.setZoom（number）;

https://developers.google.com/maps/documentation/javascript/reference#methods

最好使用map.getZoom（）来获取缩放级别，因为map.zoom只会告诉你初始缩放级别，而不是当前缩放级别。

初始化地图后，Google Maps v3会调整缩放级别

1 个答案: