【摘要】 3维地理空间表达和描述的地理要素,往往具有多样性和复杂性的特点。3维布景作为地理空间信息表达的一种方式,可以针对特定需求,实现空间地理现象的灵活配置和合理化布设,满足人们对地理要素与环境认知的多方面需求,促进地理空间信息应用服务。此处描述了地理空间中3维布景的基本概念;论述了空间信息布景所涉及的5项关键技术,包括插件式软件架构、渲染引擎、数据结构与索引、海量数据调度和3维符号化配置;通过软件平台的开发进行了实验。更多还原

【Abstract】 The description and expression of geographical features in 3D geospace are generally various and complex.As a mode of 3D geospatial information representation,3D scene set can realize the flexible configuration and rational set for special requirements.It can satisfy people’s multiple-requirements on recognition of geographical features and environment.And it can also promote the application service of geospatial information.The basic conception and key technologies referring to 3D scene set in geo-space were discussed.These five key technologies included in software constructure based on plug-in,rendering engine,data structure and index,huge data transfer and 3D symbol configuration.The related research and experiment were carried out by developing software platform.更多还原