如果地图上显示某个点

Question

如何知道我的地图上是否有可见的点？

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

Answer 1

如果一个点位于地图的可见区域（视口）内，则可见，这意味着;

// 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
}