/**
* Get the layer referenced by the supplied layer ID.
*
* @param layerID the id of the layer to retrieve.
* @return the requested layer, or null if requested layer does not exist.
*/
public Layer getLayer(String layerID) {
for (Layer layer : layers) {
if (layer.getLayerID().equals(layerID)) {
return layer;
}
}
return null;
}
