Spatial Data Model for Feature-based GIS.

Wang Feng, Yang Shuqiang, Chen Huowang, Sha Jichang: Spatial Data Model for Feature-based GIS CSIT 1999 : 107-111

Abstract

In recently advanced GISs, geographic phenomena are rep-resented as features with associated topologic relations and classification attributes. A feature is defined as two-fold: both a real world geographic entity and its digital represen-tation. Semantic relations and intrinsic interrela-tions of the features themselves are generally neglected. In this paper, the intension of a feature' concept is extended. Features, as the fundamental depiction of geographic phe-nomena, encompass geometric objects, geographic entities and graphic symbols. A feature-based model, TLDM (Three-Leveled Data Model) is described, that represents geographic phenomena from three levels: geometry, geography and graph, among which the interrelations are analyzed in de-tails. Lastly, the development of an object-oriented prototype feature-based GIS, YH-GIS, is described briefly.

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Printed Edition

Ch. Freytag and V. Wolfengagen (Eds.): CSIT'99, Proceedings of 1st International Workshop on Computer Science and Information Technologies, January 18-22, 1999, Moscow, Russia. MEPhI Publishing 1999, ISBN 5-7262-0263-5

Electronic Edition