public void initNavaids() {
try {
navaidXML = new NavaidXML(airportData, XMLMapAccess.GenerateDocument(airportData));
navaids = (HashMap<String, INavaidCoord>) navaidXML.getNavaidData();
setChanged();
notifyObservers(new NavaidEvent());
} catch (IOException ex) {
Logger.getLogger(ATMCModel.class.getName()).log(Level.SEVERE, null, ex);
}
}