根据标记缩放和居中Google地图(JavaScript API V3)

Cal*_*lou 31 javascript google-maps google-maps-api-3

我认为标题已经足够了,我甚至不知道如何为V2和V1 API做这个:/ /

谢谢 :)

Dan*_*llo 74

正如其他答案所暗示的那样,该fitBounds()方法应该可以解决问题.

考虑以下示例,它将在美国东北部生成10个随机点,并应用以下fitBounds()方法:

<!DOCTYPE html>
<html> 
<head> 
   <meta http-equiv="content-type" content="text/html; charset=UTF-8"/> 
   <title>Google Maps LatLngBounds.extend() Demo</title> 
   <script src="http://maps.google.com/maps/api/js?sensor=false" 
           type="text/javascript"></script> 
</head> 
<body> 
   <div id="map" style="width: 400px; height: 300px;"></div> 

   <script type="text/javascript"> 

   var map = new google.maps.Map(document.getElementById('map'), { 
     mapTypeId: google.maps.MapTypeId.TERRAIN
   });

   var markerBounds = new google.maps.LatLngBounds();

   var randomPoint, i;

   for (i = 0; i < 10; i++) {
     // Generate 10 random points within North East USA
     randomPoint = new google.maps.LatLng( 39.00 + (Math.random() - 0.5) * 20, 
                                          -77.00 + (Math.random() - 0.5) * 20);

     // Draw a marker for each random point
     new google.maps.Marker({
       position: randomPoint, 
       map: map
     });

     // Extend markerBounds with each random point.
     markerBounds.extend(randomPoint);
   }

   // At the end markerBounds will be the smallest bounding box to contain
   // our 10 random points

   // Finally we can call the Map.fitBounds() method to set the map to fit
   // our markerBounds
   map.fitBounds(markerBounds);

   </script> 
</body> 
</html>
Run Code Online (Sandbox Code Playgroud)

多次刷新此示例,没有标记出现在视口之外:

fitBounds演示


Kla*_*ark 7

这是方式:

map.fitBounds(bounds);
map.setCenter(bounds.getCenter());
Run Code Online (Sandbox Code Playgroud)

bounds是坐标(标记)的数组.每次放置标记时都会执行以下操作:

bounds.extend(currLatLng);
Run Code Online (Sandbox Code Playgroud)

  • 我认为fitBounds之后不需要setCenter (5认同)