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。
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 geo- graphical 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-spaee were discussed. These five key technologies included in software constructure based on plugqn, 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.
出处
《测绘科学技术学报》
北大核心
2009年第4期296-299,共4页
Journal of Geomatics Science and Technology
关键词
可视化
布景
3维符号
空间索引
插件
visualization
scene set
3D symbol
special index
plug-in
