摘要
本文以Lidar点云数据为地形数据源文件,先讨论了基于OpenGL的点云三维可视化表达;然后研究了视景体可视范围的计算方法,以此作为剪裁Lidar点云数据的依据;最后在前两方面研究的基础上探讨了四叉树对点云数据的组织,生成了三维地形场景,并实现了场景的实时漫游。
This paper based on Lidar point cloud data.Firstly,discussed 3D visualization of expression of the point cloud based on OpenGL.Secondly,studied the method of calculating the visual scope of the view-frustum,and crop the Lidar point cloud data on it.Thirdly,It organized the point cloud data using quad-tree.Finally,3D terrain scene was created,and it can roam real-time.
出处
《测绘科学》
CSCD
北大核心
2009年第S1期179-181,71,共4页
Science of Surveying and Mapping