如何获得矩形格的地图，谷歌API V3

Question

如何获得4角落（LAT & LNG）时默认或bounds_changed事件，

Answer 1

这应该工作，把它放在一个被调用你的bounds_changed事件函数内处理者：

var bounds = map.getBounds(); 
var northEastCorner = bounds.getNorthEast(); 
var southWestCorner = bounds.getSouthWest(); 

var northWestCorner = { 
    lat: northEastCorner.lat(), 
    lng: southWestCorner.lng() 
}; 

var southEastCorner = { 
    lat: southWestCorner.lat(), 
    lng: northEastCorner.lng() 
};