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近年来,地理信息系统(GIS)得到了很快的发展。随着计算机技术的发展,尤其是分布式组件技术的进步,Web GIS得到了长足的发展。该文提出了一种基于分布式组件技术的分布式Web GIS应用。首先,介绍了所提系统的框架;然后我们讨论了实现这个系统所用的关键技术;最后利用VC++ATL设计了一种基于Geo Beans的3层的Web GIS实例。通过实际的验证,所提的设计是正确的、可行的、有效的。
In recent years, geographic information system (GIS) has been rapid development. With the development of computer technology, especially the progress of distributed component technology, Web GIS has made considerable progress. This paper proposes a distributed Web GIS application based on distributed component technology. First of all, we introduce the framework of the proposed system. Then we discuss the key technologies used to implement this system. Finally, we design a 3-layer Web GIS instance based on Geo Beans using VC ++ ATL. Through the actual verification, the proposed design is correct, feasible and effective.