How do I Add and Remove Polygons on Google Maps v3?

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伪装坚强ぢ
伪装坚强ぢ 2021-02-07 08:33

I\'m trying to show and remove polygons onto a Google Map, using v3 of the API. In my JavaScript, I\'ve already got an MVCArray of some custom Lat-Longs.

I\'m trying to

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  •  -上瘾入骨i
    2021-02-07 09:15

    In the API docs, there are a couple of simple examples of adding a polygon to a map. Here's the initialize() function from the simple Bermuda Triangle example with the addition of adding an event listener to remove the polygon when clicked.

    function initialize() {
      var myLatLng = new google.maps.LatLng(24.886436490787712, -70.2685546875);
      var myOptions = {
        zoom: 5,
        center: myLatLng,
        mapTypeId: google.maps.MapTypeId.TERRAIN
      };
    
      var bermudaTriangle;
    
      var map = new google.maps.Map(document.getElementById("map_canvas"),
          myOptions);
    
      var triangleCoords = [
          new google.maps.LatLng(25.774252, -80.190262),
          new google.maps.LatLng(18.466465, -66.118292),
          new google.maps.LatLng(32.321384, -64.75737),
          new google.maps.LatLng(25.774252, -80.190262)
      ];
    
      // Construct the polygon
      bermudaTriangle = new google.maps.Polygon({
        paths: triangleCoords,
        strokeColor: "#FF0000",
        strokeOpacity: 0.8,
        strokeWeight: 2,
        fillColor: "#FF0000",
        fillOpacity: 0.35
      });
    
      bermudaTriangle.setMap(map);
    
      // add an event listener
      google.maps.event.addListener(bermudaTriangle, 'click', function() {
          this.setMap(null);
      });
    
    }
    

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