摘要
三维数字城市模型数据量巨大,渲染负担重,为了实现三维可视化的实时性交互,如何对它们进行高效的组织管理是当前的一个难题。本文提出了科学可行的分层分块组织策略,并在研究OSG数据动态分页调度技术后,分析了该算法存在的缺陷,提出合理的三维海量模型数据调度策略,实现了对海量三维模型库的高效动态调度与分层管理。
The amount of three-dimensional digital urban model data and rendering urban are very large, how to manage these data effectively for realizing real-time 3D visualization interaction is a big problem. After researching forms, distribution and data characters of three-dimensional digital urban models, this paper proposed the scientific dividing strategy. It studied OSG data dynamic paging scheduling technology, analyzed the deficiency of the algorithm, and proposed the reasonable scheduling strategy of three-dimensional massive model data. Based on the above research result, this paper realized the effective dynamic scheduling display and layered con- trol of three-dimensional massive model library.
出处
《测绘科学》
CSCD
北大核心
2013年第4期97-100,共4页
Science of Surveying and Mapping
基金
天津市规划局科技计划项目(2010-KJA-12)
关键词
三维数字城市
海量数据组织
分页LOD
数据调度
three-dimensional digital city
massive data organization
paged LOD
data scheduling
