The 3D modeling for railway line can be realized based on the three-dimension overall terrain and railway line model with the integration of 3DS and AutoCAD.

• 该方法的特点是在拼合地表曲面和线路表面时采用了分治算法,故计算工作量较少且速度快。 在此基础上,通过集成Auto CAD及3DS即可达到对铁路线路进行三维造型的目的。