Research On 3D Visualization Of City Battle Field And Its Application

This article analyzed the role cities will play in future battle and the city battle filed environment, summarized the main modeling target in 3D city battle filed environment, and in accordance, summarized the way of obtaining and proceeding spatial data of city battle field. Based on the job said above, this article summarized the main methods and technologies of 3D modeling in common use. And discussed the common ways of 3D visualization, and made a clear comparison among the ways, then choose Java3D as the developing environment of 3D visualization in this article. And specified how the main 3D modeling targets are visualized in Java3D environment.This article summarized the main problems people meet in large-scale city data visualization, and put forward a newly way of data engagement and employment in the course of 3D displaying. To solve the problem of data engagement, this article put forward a interactive and viewable way of loading 3D data into the database. To solve the problem of large-scale city data displaying, this article put forward a way of multi-leveled LOD data based multi-leveled data flipping mechanism.This article also designed a test system for large-scale city data displaying, and realized functions such as the co-tracing of 3D scene and 2D maps, positioning be 2D map clicks, positioning by DBMS queries, the interactive visualizing way of mass data loading to the DBMS, the displaying of mass city data, city action editing and showing etc.