@Override
protected void doRestoreState(RestorableSupport rs, RestorableSupport.StateObject context) {
super.doRestoreState(rs, context);
Double la = rs.getStateValueAsDouble(context, "leftAzimuthDegrees");
if (la == null) la = this.leftAzimuth.degrees;
Double ra = rs.getStateValueAsDouble(context, "rightAzimuthDegrees");
if (ra == null) ra = this.rightAzimuth.degrees;
this.setAzimuths(Angle.fromDegrees(la), Angle.fromDegrees(ra));
}
