摘要
随着GIS的发展，以应用程序为中心的GIS正向以数据为中心的GIS转变。相应的空间分析方法也由原理驱动向数据驱动转变。原先的GIS应用系统由于设计理念和编程思想等多方面条件的制约．为满足系统的应用特点大都定义了独立的、固定的数据结构。虽然这种状况从表面上对用户和数据的需求并没有太大的约束，但它却严重阻碍了数据资源的共享。本文介绍了一种基于面向对象数据模型的地图数据拓扑结构化建立方案，从而为实现数据与应用系统无关的地理信息系统平台建立提供基础的软件支撑。
With the development of GIS, it＇s emphasis has been changed from applied program to data. And the spatial analytic method accordingly changes from principle drive to data drive ,Because of the constraint of the design and programming idea for GIS, the fixed and independent data structure has been defined to satisfy system- atic application characteristic. Though this kind of condition has no too big restraint of the user and data demand, it seriously obstructs data resource share. This article introduces a method of building topology on map data, which based on object-oriented data model, Adopting this method we can develop GIS that data and application irrespec- tive.
出处
《测绘科学与工程》
2005年第3期17-20,共4页
Geomatics Science and Engineering
