We describe a data model, and the corresponding data definition language, which have been designed and developed for the management of graphical objects in a logic data base environment. The principle feature of the model is a set of new concepts that try to eliminate the defects of the most commonly used graphical system models. The model has been integrated in an existing Logic Data Base Management System, EDBLOG, to obtain GRAPHEDBLOG, an LDBMS in which graphical and non graphical information is handled in a uniform (declarative) way.
Graphics by a logic database management system
Asirelli P;
1989
Abstract
We describe a data model, and the corresponding data definition language, which have been designed and developed for the management of graphical objects in a logic data base environment. The principle feature of the model is a set of new concepts that try to eliminate the defects of the most commonly used graphical system models. The model has been integrated in an existing Logic Data Base Management System, EDBLOG, to obtain GRAPHEDBLOG, an LDBMS in which graphical and non graphical information is handled in a uniform (declarative) way.File in questo prodotto:
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Descrizione: Graphics by a logic database management system
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