Abstract
Topological correctness of objects is an issue demanding solution in all undertakings related to the creation spatial databases. This article presents the technology for detection and elimination of topological errors in official databases (real estate cadastres, Land Parcel Identification System (LPIS)). The method for working on virtual objects in computer aided design (CAD) environment has been developed. This method can be successfully used for spatial databases, where large numbers of objects are elaborated. The suggested algorithm for verifying the topological correctness of surface objects was implemented in the years 2010–11, with the update of LPIS system databases, carried out by the Ministry of Agriculture in Poland. This technology received positive assessment in the course of the works undertaken.
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