铁路选线辅助设计，平面设计，ARX自定义实体。计算曲线要素，出图。实时更新。-Railway route aided design, graphic design, ARX custom entity. Calculation curve elements, the figure. Real-time updates.

根据设计元素对铁路曲线的观测数据进行平差计算，通过条件平差和间接平差方法获得结果，并输出到结果文件中。-According to the design elements of the observation data of the railway curve is calculated, and the results are obtained by the method of conditional adjustment and indirect adjustment.