google-maps-api-3 - 如果某个点在 map 上可见

Question

如何知道某个点在我的 map 上是否可见？

var point = new google.maps.LatLng(parseFloat(lat),parseFloat(lng));
如果 map.getbounds().contains(point) ...

Answer 1

如果通过可见，您的意思是一个点是否在 map 的可见区域(视口(viewport))内；

// assuming you initialized your map

var point = new google.maps.LatLng(parseFloat(lat),parseFloat(lng));
var currentBounds = map.getBounds() // get bounds of the map object's viewport

if(currentBounds.contains(point)){
    // your location is inside your map object's viewport
}else{
    // your location is out of the bounds of the map's visible viewport
}