seFloat(newValue); //速度
                        }
                    }
                );
            }
            subscribeParameter('pitch');
            subscribeParameter('heading');
            subscribeParameter('range');
            subscribeParameter('speed');

            /*
                function callBack(arg) {
                    //绘制路径点
                    positions = arg._points;
                    //设置漫游路径
                    animation.positions = positions;
   