摘要
目前GIS技术发展迅速,但如何满足海量三维数据的应用,是一个亟待解决的问题。倾斜摄影技术有其明显优点,即能够满足大范围三维数据快速获取、快速建模的需求,其精度高、成本低、效率高、效果真实,能够满足城市级应用和整体决策分析需求,将其应用于智慧城市建设等项目中将大有可为,但如何将海量三维数据便捷高效地应用起来是其痛点。本文提供了一种海量三维数据的管理方法,通过根节点聚合技术实现海量倾斜摄影三维数据的快速导入加载,实现海量三维模型数据以OSGB形式分级动态加载,从而极大地增加了三维数据在虚拟场景中的可承载量和调用速度。
At present,GIS technology is developing rapidly,but how to meet the application of massive 3D data is an urgent problem.Oblique-photography technology has its obvious advantages,that is,it can meet the needs of rapid acquisition and modeling of large-scale 3D data,with high accuracy,low cost and high efficiency,and real effect.It can meet the requirements of city level application and overall decision-making analysis.It will be promising to be applied to the construction of smart city and in global mapping projects,but how to apply massive 3D data conveniently and efficiently plays an important role here is the point.This paper provides a management method of massive 3D data,which realizes the rapid import and loading of massive oblique-photography 3D data through the root node aggregation technology and realizes the hierarchical dynamic loading of massive 3D model data in the form of OSGB,that greatly increasing the bearing capacity and calling speed of 3D data in the virtual scene.
作者
吕剑峰
储鼎
赵晓伟
LYU Jianfeng;CHU Ding;ZHAO Xiaowei(Institute of Economic Management Science,Ministry of Natural Resources,Harbin 150081,China)
出处
《测绘与空间地理信息》
2021年第S01期209-212,共4页
Geomatics & Spatial Information Technology
关键词
根节点聚合
倾斜摄影
虚拟三维场景
细节层次
root node aggregation
oblique photography
virtual 3D scene
levels of detail
