Geographic analysis-oriented Virtual Geographic Environment:Framework,structure and functions  

作　　者：LU GuoNian 

机构地区：[1]Key Laboratory of VGE, Ministry of Education, Nanjing Normal University, Nanjing 210046, China

出　　处：《Science China Earth Sciences》2011年第5期733-743,共11页中国科学（地球科学英文版）

基　　金：supported by Key Project of National Natural Science Foundation of China (Grant No. 40730527)

摘　　要：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 modem 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.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.

关 键 词：VGE data environment modeling environment expression environment collaborative environment 

分 类 号：TP393.18[自动化与计算机技术—计算机应用技术] P208[自动化与计算机技术—计算机科学与技术]