Title :
Terrain three-dimensional visualization based on dynamic LOD quadtree arithmetic
Author :
Yukun, Wang ; Yongli, Zhu
Author_Institution :
Inst. of Comput. Sci. & Technol., Henan Polytech. Univ., Jiaozuo, China
Abstract :
LOD model based on quad-trees is improved on the basis of former researches. This model is applied to manage and organize terrain data. Node judgment rule is established to determine the detail degree of the present visual area. A new bidirectional way was given to recover the cracks according to distance. By programming, this method is proved to be able to generate multi-resolution terrain model continuously, improve the efficiency of terrain navigation, and realize smooth transition of the models with different resolution.
Keywords :
data visualisation; quadtrees; terrain mapping; crack recovery; dynamic LOD quadtree arithmetic; multiresolution terrain model; node judgment rule; terrain navigation; terrain three-dimensional visualization; Computational modeling; Data models; Rendering (computer graphics); Solid modeling; Surface topography; Vectors; Visualization; LOD; Multi-resulution terrain; Node jedgment rule; Quad-tree;
Conference_Titel :
Intelligent Control, Automatic Detection and High-End Equipment (ICADE), 2012 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-1331-5
DOI :
10.1109/ICADE.2012.6330090
