Discussion on the Quality Inspection and Modification of Cadastral Spatial Data

The quality of cadastral spatial data is the basis of cadastral data's updating, query and analysis. In this paper, firstly the types of inconsistency in cadastral spatial data are analyzed, such as node mismatching, crack and superposition between parcels and so on. Then the corresponding checking and correcting algorithm are presented. The algorithms are realized using Visual C++ and MapX and validated through experiment.