Research on the Method of Regulatory Detailed Planning Data Conversion from CAD to MDB Based on ArcPy
The regulatory detailed planning is the legal basis for the implementation and management of urban planning,and its outcome data is an important basic data for the territorial spatial planning database. Currently,CAD is the main source data for regulatory detailed plan-ning. Accurately and efficiently converting the graphics and attribute information of CAD data to GIS data is the prerequisite for the construc-tion of"One Map". This paper proposes a data conversion method based on Pywin32 and ArcPy for secondary development,constructs a map-ping relationship and lossless conversion model from Dongguan' s regulatory detailed planning CAD data to MDB data,and effectively achieves the lossless conversion of CAD data graphics and attribute information. The results show that this method can ensure the consistency and integ-rity of graphics-attribute information before and after data format conversion,and has good practicality and platform universality,laying a solid foundation for cross-platform data processing and sharing in the context of big data.