【摘要】 介绍了基于的的特点。论述了基于的的核心内容:空间数据引擎,基于的基本空间要VRMLWeb VRGISVRMLWeb VRGISVRML素,基于的层次管理,基于的空间数据分析。提出了一种基于的的体系结构,并给出了一个简单实验系统VRMLGISVRMLVRMLWeb VRGIS及分析。更多还原

【Abstract】 This paper firstly introduces the features of Web VRGIS (virtual reality Web geographic information system) based on VRML, then discusses the core contents of it such as spatial data engine, basic spatial element on VRML, the GIS hierarchy management on VRML and spatial data analyses on VRML, etc. At last, a framework of Web VRGIS based on VRML is put forward, and a simple experiment system and its analyses are given. ;更多还原