摘要
针对海量地形数据实时可视化,提出了一种瓦片金字塔模型和线性四叉树索引相结合的地形数据组织方法,利用视景体裁剪、基于分辨率测试的目标瓦片快速搜索算法和瓦片请求预测机制实现了场景数据的动态管理。实验结果表明,该研究成果能够实现真实感海量地形数据的实时可视化与交互操作。
An organization approach of data based on tile-pyramid model and linear quadtree tile-index is put forward for the real-time visualization of massive terrain dataset. The dynamic management of landscape data is achieved with the view frustum culling technology, the target-tile searching algorithm based on resolution-testing and the tile-request prediction mechanism. The experiment results show that this approach can achieve good performance for real-time rendering of massive terrain dataset.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2005年第2期406-409,413,共5页
Journal of System Simulation
基金
国家"八六三"高技术研究发展计划 (2002AA716121)
