A conceptual model for a feature-based virtual network

被引：15

作者：

Zhou C. ^{[1
]}

Lu F. ^{[2
]}

Wan Q. ^{[2
]}

机构：

[1] Department of Civil Engineering, University of Hong Kong, State Key Laboratory of Resources and Environmental Information System

[2] State Key Laboratory of Resources and Environmental Information System, Chinese Academy of Sciences

来源：

GeoInformatica | 2000年 / 4卷 / 3期

关键词：

Data model; Feature; Network; Object-oriented analysis; Virtual network;

D O I：

10.1023/A:1009853309757

中图分类号：

学科分类号：

摘要：

Networks can be used as a model for the representation and analysis of the physical world. Traditional GIS data models need to be improved if GIS is to be more suitable for network modeling. This paper proposes a feature-based object-oriented data model for transportation networks. It breaks the limitations of the arc-node planar graph model in feature description and topology expression of complicated networks. The basic classes in the data model are explicitly defined. The difference and relationship between physical networks and virtual networks, and the topology representation in virtual networks are discussed. An object-oriented network analysis method is used to construct virtual networks over physical networks in order to make abstract networks more suitable for analysis, and includes a detailed example of a multi-modal traffic network.

引用

页码：271 / 286

页数：15

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