Brings the tile layer to the bottom of all tile layers.
Brings the tile layer to the top of all tile layers.
Returns the HTML element that contains the tiles for this layer.
Should contain code that creates DOM elements for the overlay, adds them to map panes where they should belong and puts listeners on relevant map events. Called on map.addLayer(layer).
Should contain all clean up code that removes the overlay's elements from the DOM and removes listeners previously added in onAdd. Called on map.removeLayer(layer).
Causes the layer to clear all the tiles and request them again.
Changes the opacity of the tile layer.
Updates the layer's URL template and redraws it.
Sets the zIndex of the tile layer.
Adds the layer to the map.