google map 绘制虚线边界

google map 绘制虚线边界

[javascript]

function drawPrePath(array,color){  
    
  var sorrow={  
  path: google.maps.SymbolPath.FORWARD_CLOSED_ARROW //arrow  
  };  
  var lineSymbol = {  
  path: 'M 0,-1 0,1',  
  strokeOpacity: 1,  //透明度
  scale: 3  //虚线长短
  };  
  var pathCoord = [  
  new google.maps.LatLng(37.772323, -122.214897),new google.maps.LatLng(21.291982, -157.821856),  
  new google.maps.LatLng(-18.142599, 178.431),new google.maps.LatLng(-27.46758, 153.027892)  
  ];  
  path = new google.maps.Polyline({  
  path: pathCoord ,  //虚线走的路径
  strokeColor:"#2d2d2d",  //线条颜色
  strokeOpacity: 0,  //填充色透明度
  strokeWeight: 2,  //宽度
  icons:[{icon:lineSymbol,offset: '0',repeat: '20px'}], //虚线偏移、重复度 
  map:map  
  });  
  path.setMap(map);  
}