TileOverlayOptions interface

let options: TileOverlayOptions = {
  getTile: (x: number, y: number, zoom: number) => {
    return "http://tile.stamen.com/watercolor/" + zoom + "/" + x + "/" + y + ".jpg";
  },

  visible: true,

  zIndex: 0,

  tileSize: 512,

  opacity: 1.0,

  debug: false
};

this.map.addTileOverlay(options);

Interface members

Params	Type	Details
getTile	function	This callback must Returns string of image URL. If no tile, you need to Returns null.
visible	boolean	(optional)Set false if you want to create invisible tilelayer.(Default is true)
zIndex	number	(optional)Hierarchy z-index of tilelayer
tileSize	number	(optional)Default: 512px
opacity	number	(optional)from 0.0 to 1.0
debug	boolean	(optional)Set true if you want to display the tile information over the tile images.