基于单元的铁路线路平面设计及其数据管理方法

提出一种新的基于单元的铁路线路平面设计方法,将线路中线看成一系列线路单元顺序连接而成,使用线路单元来进行定位,摆脱了交点法在曲线毗连地段定线困难的局限性,适用性更强.同时提出一种新的数据管理方法,该方法利用自定义对象将线路单元的ID直接存储于图形数据库中,通过线路单元的ID来存取数据,保证图形与数据的同步,摆脱对外部文件或数据库的依赖.

Plane design of railway line and its data management method based on cell

This paper proposed a new graphic design methodology for railway line based on cell.The new method treated the middle line of the railway as a series of line units which connected each other together in order,getting rid of the limitation of alignment difficulties in curve adjacent sections when using intersection method.So,this approach had a stronger applicability.Meanwhile,the paper proposed a new data management approach,which stored the Id of line unit in the graphic database through custom objects,and accessed data through ID of line unit.Those ensure synchronization between graphics and data,and freed itself from the dependent on an external file or database.