组件式空间参照系统的研究

Research on spatial reference system based on component

空间参照系统是描述地球上各地理要素空间特性的框架,是GIS系统的基础。参照ArcGIS空间参照系统的设计框架,遵循OGC发布的有关地图投影的接口和组件对象的规范,设计并实现了一个基于组件技术的空间参照系统。对地图投影和参照系进行了研究,介绍了空间参照系统的重要意义,论述了空间参照系统的设计思想和目标,并给出了该系统的体系结构,分析了提高该系统实用性应注意的问题和方法。

Spatial reference system is the frame of describing spatial character of object on the earth and it is the base of GIS. According to spatial reference model of ArcGIS and conforming to the specification about map projection and component object released by OGC, the spatial reference component is designed and implemented. Firstly, the project and spatial reference are researched, and the importance of spatial reference is introduced, then the architecture of the spatial reference system is given, finally the problem and way of enhancing the practicability of the system is discussed.