This paper describes a way for representing topology in GISs when an O-ODBMS is used as platform. Object-oriented systems allow to model geometric data and topological relationships. thanks to the object identity, the modeling flexibility, the inheritance, and the overriding/overloading features. The representation adopted for topology is a trade-off between avoiding data redundancy and maintaining database schema independence. A small set of user-oriented spatial relationships and operators is used as formal background for the actual implementation of topology. Our experience has been carried out with the O2 system.
Experimenting the Usability of an O-ODBMS for the Representation of Topology in GISs
CLEMENTINI, ELISEO;
1993-01-01
Abstract
This paper describes a way for representing topology in GISs when an O-ODBMS is used as platform. Object-oriented systems allow to model geometric data and topological relationships. thanks to the object identity, the modeling flexibility, the inheritance, and the overriding/overloading features. The representation adopted for topology is a trade-off between avoiding data redundancy and maintaining database schema independence. A small set of user-oriented spatial relationships and operators is used as formal background for the actual implementation of topology. Our experience has been carried out with the O2 system.File in questo prodotto:
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