铁路施工组织平面图自动生成方法研究

Research on a Method for Automatically Generating Railway Construction Organization Plane Graph

目前铁路施工组织平面图的绘制以人工为主,存在绘制周期长、精度不高、工作量大等问题。为此,提出一种应用国产CAD控件和GDAL开源软件库自动生成铁路施工组织平面图的方法:依据铁路线路数据计算平面图出图范围,利用GDAL处理出图范围内的地图底图和矢量数据,使用CAD控件完成铁路施工组织平面图所有数据的绘制。基于该方法完成了软件开发,并以某铁路工程为例,分析不同铁路里程、不同地图层级下生成平面图的耗时情况;结果表明:该方法出图效率高,便于绘制铁路工程项目不同设计阶段所需的施工组织平面图,极大地减轻了设计人员工作量。

At present,the drawing of railway construction organization plane graph is mainly manual,which has some problems such as long drawing cycle,low precision and heavy workload.For this,this paper puts forward a method for automatically generating railway construction organization plane graph by using a domestic CAD control and the GDAL open source software library.Firstly,the scope of the railway construction organization plane graph is derived from railway line data.Then,all the map tiles and vector data within the scope of the plane graph are properly processed by using the GDAL.Finally,all the data of plane graph are drawed by using the CAD control.Based on this method,the design software is developed and a railway project is taken as an example to analyze the time-consumtion for generating the construction organization plane graphs for the railway within different mileage and at different map levels.The results show that this method has high efficiency in drawing and is convenient for drawing the construction organization plane graphs required at different design stages of a railway engineering project,thus greatly reducing the workload of the designers.