Research on topological relation self-adaptation in DLG data update

doi:10.13474/j.cnki.11-2246.2020.0363

Abstract

Abstract: Aiming at the problem of maintaining the consistency of the topological relationship between geographical elements when heterogeneous vector data is converted, a method of adaptively updating the topological relationship is proposed. Based on the analysis of the topological relationship between geographical elements, the change of the topological relationship caused by its spatial changes is researched. Taking the rationality of the changed topological relationship as the basis of judgment, an adaptive strategy for the topological relationship corresponding to the geographical elements is proposed. The theoretical research is applied to engineering applications. Firstly, the topological relationship adaptive strategy of geographic features is converted into an editable XML document, and then a plug-in tool is developed using the ArcGIS Add-in method. It realizes the self-adaptive updating of topological relations amony geographical features, reduces manual operations and improves update efficiency.

Key words: DLG, data update, topological relation, adaptive strategy, consistency maintenance

CLC Number:

P208

CHEN Nan, ZHANG Biao. Research on topological relation self-adaptation in DLG data update[J]. Bulletin of Surveying and Mapping, 2020, 0(11): 99-103.

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