A Modeling Method of Virtual Terrain Environment

Terrain data is the most commonly used data in virtual test. In various applications, terrain data's type and representation are also different, so we often need to convert terrain data according to the application demand. Aiming at this problem, this paper proposes a new terrain environment modeling method based on SEDRIS (Synthetic Environment Data Representation and Interchange Specification), which we used to represent and exchange the terrain data. Firstly, the form and characteristics of all kinds of terrain data are analyzed, and then the appropriate SEDRIS standard DRM class and the EDCS dictionary are selected to represent the original data, and the STF format terrain environment data with SEDRIS standard is generated. The research of this paper can enhance the normative representation and conversion efficiency of terrain environment data, and realize the terrain data sharing and reuse.