【摘要】 新技术的出现和应用的发展导致了GIS中地图输出方式的多样化,大体可归为三种:屏幕显示输出、硬拷贝输出和电子输出。本文针对每种地图输出方式,首先研究了应用于其中的关键技术;然后,为这些不同的输出方式设计了一个统一接口的实现模式。实践证明,该模式对用户透明,屏蔽了每种输出模式具体的实现细节,而且也非常利于扩展。更多还原

【Abstract】 New technologies and application made the methods of map output in GIS getting more and more.But all the methods can be divided into three types:screen display,hardcopy output and electron output.According to the modes of map output,the paper researched the key technologies of them firstly.Then,put forward an unified relation architecture for these output methods.It was proved by practice that the architecture is transparent to users,screens the specific of each methods and is good to extension.更多还原