Design and Implementation of Geo-Objects Simulation and Interactive Visual Editing Tools

Terrain is the carrier of virtual environment, and terrain modeling is the base of constructing model in synthetic natural environment (SNE). The goal of SNE modeling is not only to reconstruct real environment elements such as terrain in virtual environment, but also to construct multi-level interactive channels between human and virtual environment. In this paper, a prototype called geo-objects simulation and visual editing system (GSVES) is developed, in which a technological approach for integrating modeling, editing and analyzing environment elements is explored. Further more, this paper goes into a description of the different levels of interactive behavior between human and virtual environment as follows: data level, analysis level and collaboration level, from low to high. We proposed the real environment elements should be organized sequentially in the context of SNE, which lays the foundation for interaction between human and virtual environment harmoniously finally