面向对象的地图模型

Proceedings. Tenth International Workshop on Database and Expert Systems Applications. DEXA 99 Pub Date : 1999-09-01 DOI:10.1109/DEXA.1999.795237

S. Asgari, N. Yonezaki

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引用次数: 0

摘要

纸质地图一直是表示地理数据的最流行的媒介，因为它们易于理解和解释。近年来，对空间数据库系统的发展进行了一些研究，但尚未找到将地图作为空间对象层次的正式定义。本文的目的是在现实世界中引入一个尽可能接近其概念的地图模型。然后介绍了空间对象的形式操作的逻辑系统，并定义了对这些对象的操作。我们的空间物体系统与气象学系统的起源方式不同。这里正式定义的地图概念使我们能够对现实世界地理的各个方面进行建模，并实现适当的操作，以回答各种各样的查询。

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An object-oriented model of maps

Paper maps have been the most popular medium for representing geographic data because they are easy to understand and interpret. In recent years several studies have been conducted into the development of spatial database systems, but a formal definition of maps as hierarchies of spatial objects has yet to be found. The purpose of this paper is to introduce a model of a map as close as possible to its concept in the real world. A logical system for formal manipulation of spatial objects is then introduced and operations on these objects are defined. Our system of spatial objects originates in a different manner than systems of mereology. The concept of map as formally defined here enables us to model various aspects of real world geography and implement adequate operations for answering a wide range of queries.

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Proceedings. Tenth International Workshop on Database and Expert Systems Applications. DEXA 99

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