CustomTileProviderV.Initialize(Null, "Get_Tile_Points")
TileOverlayOptions1.Initialize
TileOverlayOptions1.SetTileProvider(CustomTileProviderV)
TileOverlayOptions1.SetVisible(true)
TileOverlayOptions1.SetZIndex(4)
TileOverlayV=GoogleMapsExtras1.AddTileOverlay(gmap, TileOverlayOptions1)