Geographic analysis-oriented Virtual Geographic Environment: Framework, structure and functions
Previous research on the Virtual Geographic Environment (VGE) has focused mainly on representation rather than geographic
analysis. However, geographic analysis plays a significant role in modern geography. To address this issue, this paper systematically
examines theories and implementing VGE techniques that support geographical analysis and simulation. Based on its framework,
VGE can be divided into four subtypes. These are the data environment, modeling environment, expression environment, and collaborative
environment. The functions and key techniques of each are examined, and some case studies are discussed. This study provides
direction for necessary new developments of advanced VGE platforms.