基于ArcGIS的排水管网数据转换及检查方法

Data Conversion and Checking of Drainage Network Based on ArcGIS

为了解决城市排水管网建设中的数据收集和整理问题,提出了基于CAD和ArcGIS数据特点的排水管网数据转换方法,利用ArcEngine的二次开发功能,编写排水管网数据检查程序,采用SQL结构化查询语句对排水管网数据进行管道逆坡、管道错位、管网上下游追踪等多项拓扑关系的检查,实现了快速、准确且直观的错误数据定位,并将其应用于宁波市污水管网建设中。结果表明,基于ArcGIS的排水管网数据转换及检查方法,一定程度上解决了排水管网信息化建设中数据庞大和繁琐的问题,且提高了数据的准确性和工作效率。

Based on the data characteristics of CAD and ArcGIS,the data conversion method of drainage network was proposed to solve the most important issues in data collection and compilation of urban drainage network construction.The function of the secondary development in the ArcEngine was used to write the data checking program.The structure query language SQL is adopt to check various of topological relations of drainage network,such as the inverse slope of pipeline,dislocation of the pipeline,the upstream and down stream＇s tracking of the pipe.A rapid,accurate and intuitive error data positioning has achieved.Finally,it is successfully applied to the project of urban drainage network construction in Ningbo City.The results show that the proposed method can solve the huge complex data problem in information establishment of drainage network to some extent,and improve the accuracy and efficiency of drainage network data.