( (Angle3DImpl) angle ).axis = AXIS_Z;
angle.setType( AngleType.Z_LITERAL );
	public static Angle3D createZ( double val )	{		final Angle3D angle = AttributeFactory.eINSTANCE.createAngle3D( );		angle.setZAngle( val );		( (Angle3DImpl) angle ).axis = AXIS_Z;		return angle;	}