基于OSGEarth的城市三维地物模型组织与调度研究  

Research of the Organization and Scheduling of Feature Model of Urban Three-Dimensional Based OSGEarth

作　　者：于艳超[1] 许捍卫[1] 吴小东[1] 

机构地区：[1]河海大学地球科学与工程学院,江苏南京210098

出　　处：《测绘与空间地理信息》2014年第11期63-67,共5页Geomatics & Spatial Information Technology

基　　金：水利部公益性行业科研专项经费项目(201201025);国家自然科学基金批准号(41101374);国家自然科学基金批准号(41101308)资助

摘　　要：基于OSG开源工程采用可见性裁剪、LOD与动态调度等技术,分别对静态加载模型、静态加载LOD模型、动态加载和结合四叉树动态加载、瓦片式动态加载等进行试验分析,研究了城市三维地物模型的组织与调度方式,实现了基于OSGEarth城市三维场景构建,取得了良好的效果,为城市三维信息服务平台的建设提供空间框架和理论支持。Based on OSG open -source project and visibility culling , LOD and dynamic scheduling techniques , comparison of the static load model , static loading LOD model , dynamic loading and dynamic loading combined quad tree , tiles dynamic loading , re-search of the organization and scheduling of feature model of urban three -dimensional, the construction of urban 3D Scene with good results was acquired by using OSGEarth , which provides a spatial frame and theory support for urban Three -dimensional information service platform.

关 键 词：OSG(Open SCENE Graph) OSGEarth LOD(Level Of Detail) 地物模型 三维 

分 类 号：P208[天文地球—地图制图学与地理信息工程]