/**
* Appends WMS tiled image layer configuration elements to the superclass configuration document.
*
* @param params configuration parameters describing this WMS tiled image layer.
* @return a WMS tiled image layer configuration document.
*/
protected Document createConfigurationDocument(AVList params) {
Document doc = super.createConfigurationDocument(params);
if (doc == null || doc.getDocumentElement() == null) return doc;
LayerConfiguration.createWMSTiledImageLayerElements(params, doc.getDocumentElement());
return doc;
}
