【摘要】 介绍了VegaGIS中的空间数据引擎CoSDE的体系结构、设计和实现,通过空间数据引擎CoSDE提供的服务实现对多种空间数据库的直接访问。CoSDE采取了真正的三层C/S体系,屏蔽了客户端对数据库的直接访问,它与具体的数据库实现了物理上的分离,同时实现了真正的跨平台。更多还原

【Abstract】 The architecture, design and implementation of CoSDE in VegaGIS were introduced. It enabled the CoSDE server to access multiple types of spatial database directly. CoSDE has a real three-tiered C/S architecture, which enables the client application to access the database transparently, separates the specific database physically and implements a real cross-platform server application.更多还原