Replacing GTileLayer in Google Maps v3, with ImageMapType, Tile bounding box?

Question

I need to update this code:

radar_layer.getTileUrl=function(tile,zoom) {

    var llp = new GPoint(tile.x*256,(tile.y+1)*256);
    var urp = new         


        

Answer 1

Thank you for the details. In fact in my case I couldn't change the API to use tiles number I need to pass LatLng. I found this solution... so far it works for me:

var myMapOptions = {
          getTileUrl: function(coord,zoom) { 
            var proj = map.getProjection();
            var zfactor=Math.pow(2,zoom);
            var top=proj.fromPointToLatLng(new google.maps.Point(coord.x*256/zfactor,coord.y*256/zfactor));
            var bot=proj.fromPointToLatLng(new google.maps.Point((coord.x+1)*256/zfactor,(coord.y+1)*256/zfactor));
            url = "/layer/layer_"+zoom+"_"+top.lng().toFixed(6)+"_"+bot.lat().toFixed(6)+"_"+bot.lng().toFixed(6)+"_"+top.lat().toFixed(6)+".png";
        return url; 
       },
      tileSize: new google.maps.Size(256, 256),
      isPng: true,
      opacity: 0.4
     }