super("Add Glass Seagull Tracking layer"); //$NON-NLS-1$
}
public void run() {
Display display = Display.getCurrent();
if (seagullOp == null) {
seagullOp = new TrackSeagullOp();
}
// create a flock of seagulls on a glasspane
try {
seagullOp.op(display, getMap(), new NullProgressMonitor());
} catch (Exception e) {