Microstation DGN与GIS空间数据有向点转换技术研究

Research on directed point conversion technology for Microstation DGN and GIS spatial data

传统地形图数据主要基于Microstation、AutoCAD等平台进行生产、存储,地理信息相关部门普遍将ArcGIS作为各种地理信息数据库建库平台。本文阐述了利用FME软件实现DGN数据到ArcGIS平台数据库格式的无损转换,重点对有向点要素的转换技术进行研究,实现有向点要素无损转换。其研究结果在1∶500、1∶1000大比例尺传统地形图数据实体化改造中成功进行了实践。

Traditional topographic map data is mainly produced and stored on platforms such as Microstation and AutoCAD.Geographic information departments generally uses ArcGIS as a platform for building various geographic information databases.This article elaborates on the use of FME software to achieve lossless conversion from DGN data to the ArcGIS platform database format,focusing on researching the conversion technology of directed point features so as to achieve lossless conversion of directed point features.The research results have been successfully applied in the physical transformation of large-scale traditional topographic map data at 1∶500 and 1∶1000 scales.