A transmission architecture for massive 3D geospatial data dynamic dispatch based on ACE

Becoming development trend of GIS, three-dimensional visualization makes the amount of spatial data grown inevitably. Therefore, the study on storage and management of massive three-dimensional geospatial data is necessary and significant. The C/S framework, which consists of massive three-dimensional geospatial database for server and a large number of low-profile PC for clients, has become a basic idea to solve the problem. However, the development of server software witnesses plenty of challenges, such as error detection and recovery, intercurrent control and real time dispatch of spatial data etc. Based on ACE, how to apply the framework and pattern of communications software for building up a powerful application framework and constructing a high-performance server called adaptive communication server of massive three-dimensional geospatial data, is presented. The paper discusses massive three-dimensional data server related technology to achieve a thorough exploration and research, analyses the domain of 3D GIS thoroughly, identifies the problem space and the core design challenges, and proposes a feasible solution. Reducing the difficulty and workload of 3D GIS server development, this solution can have the developer focus on the development of data visualization. In addition, this paper described the object oriented architecture which supports multiple server policy configurations. Being a dynamically ordered structure, it can be ordered systematically these strategies and can be statically and dynamically change their behavior, so that it can provide the most effective strategies for a given software or hardware platform and work load.