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介绍了汶川地震灾区三维地理信息系统的快速研制及应用,重点介绍了应用于三维地理信息系统中的基于虚拟四又树技术的海量空间数据组织技术,同时给出了一些实际使用效果,指出三维地理信息系统技术可以为抗震救灾各类需要提供服务,能够为山区遥感影像的解译提供辅助手段.
This paper has presentsed the development and applications of 3D Geographic Information System on Wen-chuan Earthquake, focusesed on the organizing technology of massive spatialdata based on virtualquadtree for the applica-tion of 3D Geographic Information System, at the same tmie gave some proctical effects of the using,The paperhas indica-ted that 3D Geographic Information System technology is useful to the earthquake relief and it is a powerful assisting tool for remote sensing mi age interpretation.