Research And Development Of 3D Visualization Platform

have been developed rapidly, but it is the Virtual City which provides the environment and interactive interface for them. Compared to information technology and space technology, GIS's network, compose, embedded development, 3D technology and virtual reality technology have become the leading direction. The virtual city is developed from Web GIS, 3D GIS VR GIS, etc. and penetrates the space technology to every field of urban construction and management. This construction is achieved by the core of Virtual reality and utilization of digital photogrammetric system, GIS and network technology. This idea is developed from data maintenance tools to research relevant tools for 3D visualization. The platform is mainly composed by the editing data systems, data maintenance tools and website tested systems.The following is the specific research. In summary, it includes four aspects:(1) Virtual city construction and key technologies. We can only develop new functional software after we understand the theory and technology of Virtual city construction. Then we can do the actual research based on key technology and plan related platform software block.(2) City model based on MultiGen. A very important step to software platform research is the construction of terrain and scene by use of MultiGen software. It will increase the superiority of the platform if we find relevant advantages in MultiGen and use this advantage in research.(3) Overview of 3D visualization as well as introduction to three important components of the system. We will describe the superiority when introducing system software. Three system software's functions and features and completeness of platform can be used in various sectors of society and be promoted widely.(4) The performance of 3D visualization platform by examples. Platform can find inadequacies from actual operation and modify itself in order to serve users better.As 3D Visualization platform is still under research, some issues must be solved according to specific situations. The author states the platform needs further refinement and continuous improvement. But this will be a great challenge. Its research and development need our accumulation and professional knowledge, which some of them is new for us or unknown.