Attribute and topology of geometric objects systematic attepmt in geographic information systems

Artur Krawczyk

Abstract


This article describes the issue of generalization of spatial objects in spatial databases. Identified examples of operations (the sum of surface objects, surface objects total) in which the reduction of redundant nodes strongly accelerates query. Highlighting the issue of generalization of geometric objects. It has been proven NP-difficulty of the operation the largest reduction in the number of nodes at a given accuracy.

Keywords


spatial databases; object generalization; spatial queries

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References


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DOI: http://dx.doi.org/10.21936/si2011_v32.n2B.303